CN1275890A - Apparatus for deactivating microorganisms - Google Patents

Abstract

This article describes a method and apparatus for preserving food by inactivating microorganisms and enzymes with high-intensity, short-duration pulses of broad-spectrum polychromatic light on the surface of packaging materials. In some embodiments, a photosensitive diode is used to detect the intensity of the light, and a control circuit is used to adjust the power delivered to a flash lamp when the intensity of the light needs to be adjusted. In some embodiments, an outer protective glass is used to protect each flashlight. The outer protective glass can be provided with a coating material at its ends. Furthermore, for example by using a charge delivery pipe with an offset first and second part, said charge delivery pipe has a transition region between the first and second part, or instead of a water jacket, the water passes through An outer protective glass is used for each flash to contain the water, allowing several variations of the lamp assembly geometry to be used with small diameter tubes of packaging material. In other embodiments, a lamp retaining device includes a retaining cylinder having a first flange, said retaining cylinder cooperating with a compression cylinder to compress the first O-ring into the flashlight. In yet another embodiment, a lamp holding device is located within a socket into which an electrode of the U-shaped lamp is inserted. The lamp holder is movable with a proximal portion relative to a distal portion thereof. In yet another embodiment, a light guide is positioned to receive light emitted from a straight tube flash and transmit this light into a cup of packaging material.

Description

Make the device of bacteria inactivation rate

Background of the present invention

The present invention relates to germ is carried out deactivation particularly a kind of heterogeneous light short time of employing wide spectrum.High intensity pulses is carried out deactivation to germ.More particularly, the present invention relates to utilize this pulse of light, the germ in the analogues such as food, packing material, material, medicine equipment is carried out deactivation.

People have done a lot of technology trials at present, prolong food and other the Keeping life because of the perishable food of germ, and prevent that these food from producing corruption because of germ.These trials comprise handles and improves the corrosion-proof packing technology to food.

Exist at present being used for sterilization or reduce the surface of food, packing, medicine equipment and other article or the special demands of the method and apparatus of the content of microorganisms in it.These method and apparatus can be used to reduce or eliminate the needs of chemical preservative.For example, the bakery product such as bread at their by after being baked but fully cooling off may from air, gather the germ such as fungal spore before to be packaged.Bakery product is carried out post bake will make these food overdryings.Therefore, this based food is carried out surface disinfection but the new mode that do not need this based food is carried out post bake is for desirable.

Enzymatic degradation also takes place in food easily, and this has just limited effective Keeping life of food.Enzymatic degradation is rapid especially and tangible in the brown stain process of potato that has for example just cut and apple, and moreover, it all has adverse effect to various food.Enzymatic degradation can be separately effect, perhaps can with putrid and deterioratedly together working of causing because of germ.

An example to the in demand food of method and apparatus of bacteria inactivation rate is fresh fish.Fresh fish take place to cause because of germ and/or enzyme addle before have only more limited Keeping life, it has limited the wholesale and commercially available of fresh fish food.People wish to have some to be used for prolonging perishable items very much, such as fresh fish, and/or the proper method of effective Keeping life of bird, beef and pork and device.

And, a lot of food, for example some fruit juice are bioactive by utilizing heating to handle to reduce under some conditions now, but will destroy the taste and the palatability of treated food like this.Be used for reducing or eliminate biologically active and the method and apparatus that need not reduce the heating of food delicious food is for desirable, because it can keep the taste and the palatability of food, customer's appetite can be improved, and commercially available amount can be increased thus through the food of this processing.

People have done a large amount of investigations and exploitation to the aseptic packaging technology that sterile food (comprising peracidity and low acidity food) is packaged in the aseptic packaging material at present, to prolong effective Keeping life of lasting food.But these method and apparatus all have various shortcoming, such as, need to use a large amount of chemical bactericides, will on packing or food, stay remaining chemical like this.The new mode and the new device that are used for packaging material for food is carried out sterilization and is used for aseptic packaging are for desirable.

Authorize U.S. Patent No.s 4 people, " foodstuff method for preserving " by name such as Dunn on October 3rd, 1989,871, disclosed an example of an aseptic packing system that uses with the photobiology food processing apparatus in 559, this patent usefulness as a reference cited in this article.Short pulse incoherent, broad-spectrum light is used to food is carried out preservation, to prevent that food is because of microbial degradation.As a result, the content that ' 559 patent is disclosed provides the long effective Keeping life of food, and can strengthen the stability of food.Adopt high strength, incoherent polychromatic light pulse can carry out the processing of high efficiency, actv., high-throughput, and can have a lot of economical and practical advantages.And the short time of pulse each time and spectral region can make the various antisepsises of light pulse concentrate on the superficial layer that approaches, such as food surface or package material surface.

Fresh fruit, vegetables and other food, for example strawberry can be from air, ground, water and other source microorganism accumulation that contacts with it, and employed here germ one speech of this paper comprises bacterium, virus and fungi.These germs can make the perishable items corruption by various known mechanism, thereby have significantly limited effective Keeping life of food.(effectively Keeping life is meant that perishable items can not caused obvious or the deletrious time that degrades or be infected with by germ through stored refrigerated or non-ly still keep edible after stored refrigerated.) be used for making this bacteria inactivation rate, that is, thereby sterilization or sterilization can prolong perishable items, are for desirable such as the proper method and the device of effective Keeping life of strawberry, orange, tomato, pumpkin, apple and other edible food.

People have been used as research to the photo bio of light, and have done all trials and come the bacteria inactivation rate on food or the food containers to adopt light, and described light comprises infrared light (780 nanometer to 2600 nanometers; That is, 3.9 * 10 ¹⁴Hertz is to 1.2 * 10 ¹⁴Hertz), visible light (380 nanometer to 780 nanometers; That is, 7.9 * 10 ¹⁴Hertz is to 3.9 * 10 ¹⁴Hertz), black light (300 nanometer to 380 nanometers; That is, 1.0 * 10 ¹³Hertz is to 7.9 * 10 ¹⁴Hertz) and extreme ultraviolet light (170 nanometer to 300 nanometers; That is, 1.8 * 10 ¹³Hertz is to 1.0 * 10 ¹³Hertz).For example, can be referring to the U.S. Patent No. 4,871,559,4,910,942 and 5,034,235 of authorizing people such as Dunn, all these patents usefulness as a reference all cited in this article.

By Prentice Hall, reported other achievement in research of the photo bio effect of light in " the research introduction of ultraviolet light biotechnology " literary composition that the Jagger of Inc. company, Mr. J. write.U.S. Patent No. 2,072,417 have described the employing dynamic rays, such as ultraviolet ray the material the milk are for example shone; U.S. Patent No. 3,817,703 have described and utilize pulse laser that permeable material is carried out sterilization; U.S. Patent No. 3,941,670 have described a kind ofly to comprising that the material of foodstuff carries out the method for sterilization, and it is to make bacteria inactivation rate with the irradiation that makes described material be subjected to laser.

Other trial that prolongs the effective Keeping life of perishable items comprises microbicide and/or antimicrobial (microbiostats) is acted on the surface of perishable items.Term used herein " microbicide " and " antimicrobial " comprise the material that is used for killing or preventing germ (defined " germ ") growth/breeding herein.One example of microbicide is chemical fungicide.Generally speaking, described microbicide and/or antimicrobial mix mutually with an emulsifying agent and then are coated on the food surface.Described emulsifying agent helps the coating of described microbicide and/or antimicrobial and works, and can guarantee that described microbicide and/or antimicrobial still stay in the food transport process on the food surface, until till food consumed.

Problem is that this microbicide and antimicrobial are subjected to the increasing careful examination of mechanism of national governments gradually, and in some cases, have shown that they may be human carcinogen's agent.Therefore, severally once generally be coated on food surface or will be banned use of food by government organs with the microbicide of effective Keeping life of prolonging food and antimicrobial.Therefore, people wish to have and a kind ofly can prolong effective Keeping life of perishable items but do not need to use microbicide or antimicrobial very much, such as the method for chemical fungicide.

The present invention can advantageously satisfy above-mentioned and other needs.

General introduction of the present invention

The present invention more particularly provides a kind of apparatus and method of utilizing heterogeneous light short time of wide spectrum, high intensity pulses to make bacteria inactivation rate with a kind of apparatus and method that are used for making bacteria inactivation rate are provided, and has advantageously satisfied the demand and other demand.

In one embodiment, the invention is characterized in provides a kind of like this device that is used for making bacteria inactivation rate, and it has adopted: a flash light; One with described flash light bonded assembly power supply; The device that packing are moved is used for making packing to move with respect to described flash light, so that the part packing are subjected to the heterogeneous light high strength of wide spectrum that emits from described flash light, the effect of short time pulse; One is used for intensity to the heterogeneous light high strength of wide spectrum, short time pulse detects and produces a photodiode that can reflect the output signal of detected intensity; One differential circuit that links to each other with described photodiode is used for measuring the difference between described output signal and the corresponding set point signal of one and one set point intensity, and produces a differential wave that can reflect the difference of measuring; An and control circuit, it links to each other with described differential circuit, be used for to controlling for the watt level of described flash light, and can indicate detected intensity to fall to the power that set point intensity increases described power supply when following in described differential wave by described power supply feed.Described device can also comprise: a conductor fiber is used at least a portion of the heterogeneous light high strength of wide spectrum, short time pulse is directed to from first end of described conductor fiber second end of described conductor fiber.First end of described conductor fiber is in the position that can receive the heterogeneous light high strength of wide spectrum, short time pulse, and second end of described conductor fiber is in the position that the heterogeneous light high strength of wide spectrum, short time pulse can be directed to described photodiode.

In another embodiment, described device comprises a trouble detect circuit, and it can produce a breakdown signal when described output signal indicates detected intensity to fall under the threshold intensity.Described control circuit can quit work described device when described breakdown signal indicates detected intensity to fall under the described threshold intensity.

In another embodiment, feature of the present invention provides a kind of like this device that makes bacteria inactivation rate, and it has: a flash light; The device that packing are moved is used for making packing to move with respect to described flash light, so that the part packing are subjected to the heterogeneous light high strength of wide spectrum that emits from described flash light, the effect of short time pulse successively; One outer protect glass around described flash light; An and outer top coat (that is one first external coating) that is coated on first, second end of described protect glass.Described outer top coat can for example comprise polytetrafluoroethylene and/or platinum coating.In the modification of this embodiment, one second outer top coat covers the described first outer top coat at least in part.

In another embodiment, the invention is characterized in provides a kind of like this device that makes bacteria inactivation rate, and it has adopted: one first flash light; One second flash light; One charging delivery pipe, it comprise one with the juxtaposed first of described first flash light and one and the juxtaposed second portion of described second flash light.When described packaging material tube during through the described first and first flash light, described first is positioned to such an extent that can occupy first side of a packaging material tube, and described first flash light is positioned to such an extent that can occupy second side of described packaging material tube.When described packaging material tube during through described second portion and described second flash light, described second portion is positioned to such an extent that occupy second side of described packaging material tube, and described second flash light is positioned to such an extent that occupy first side of described packing.

In another embodiment, feature of the present invention provides a kind of like this device that makes bacteria inactivation rate, and it has adopted: one first straight pipe type flash light; One seals first water jacket of the described first straight pipe type flash light; One is formed on first cooling water pipeline between the inside of outside and described first water jacket of described first flash light; One second straight pipe type flash light; One seals second water jacket of the described second straight pipe type flash light; One is formed on second cooling water pipeline between the inside of outside and described first water jacket of described second flash light; Put the charging delivery pipe between described first water jacket and described second water jacket in the lump; One seals the filtrated air delivery pipe of described charging delivery pipe; One is formed on the filtrated air pipeline between the inside of outside and described filtrated air delivery pipe of described charging delivery pipe; One seals the parasite of described filtrated air delivery pipe; An and outer protect glass of sealing described first water jacket, second water jacket and described parasite.

In another embodiment, feature of the present invention provides a kind of like this device that is used for making bacteria inactivation rate, and it comprises: one first straight pipe type flash light; One second straight pipe type flash light; One is located at the charging delivery pipe between the described first straight pipe type flash light and the second straight pipe type flash light; One seals the filtrated air delivery pipe of described charging delivery pipe; One is formed on the filtrated air pipeline between the inside of outside and described filtrated air delivery pipe of described charging delivery pipe; An and outer protect glass of sealing described first flash light, described second flash light and described filtrated air delivery pipe.

In another embodiment, feature of the present invention provides a kind of like this device that makes bacteria inactivation rate, and it has adopted: a flash light; And one first holding element, it comprises one first lamp holding device.The described first lamp holding device comprises: one keeps cylinder, and it comprises that one has first flange of first frusta-conical surface; Be resisted against the O shape circle on the described frusta-conical surface with putting in the lump; And one first compressor cylinder, be used for one first application force is put on the described O shape circle, be pressed on described first frusta-conical surface thereby can a described O shape enclose.First end of described flash light is positioned in the described maintenance cylinder, and described first flange of extend past, described first frusta-conical surface be oriented and the outside of described flash light between angle less than 90 degree.Described frusta-conical surface and described first application force are together, can make described O shape circle compress described flash light, thereby can enclose and described first frusta-conical surface a described O shape, and form fluid-tight sealing between described O shape circle and the described flash light.

In another embodiment, the invention is characterized in provides a kind of like this device that makes bacteria inactivation rate, and it has: one comprises the U-shaped lamp of one first electrode and one second electrode; Be used for described U-shaped lamp is navigated to device in the packing cup; An and holding device.Described holding device comprises: one is used for holding first socket of described first electrode: one is used for holding second socket of described second electrode; One is arranged on the lamp holding device in described second socket.Described lamp holding device is cylindrical basically, has a distal part and away from described U-shaped lamp and is positioned near the described U-shaped lamp nearly portion.Described lamp holding device is made by a kind of rigid material, and can make described nearly portion with respect to described distal part, mobile in described second socket.One the one O shape circle is in the outside of described distal part, between described lamp holding device and described second socket; One the 2nd O shape circle is at the place, inside of described nearly portion, between described lamp holding device and described U-shaped lamp.

In another embodiment, feature of the present invention provides a kind of like this device that makes bacteria inactivation rate, and it has: a straight pipe type flash light; One photoconduction, it is positioned to such an extent that can receive the light that emits from described straight pipe type flash light; And be used for described photoconduction is positioned at device in the packing cup.In a modification, described photoconduction is a plurality of curved quartz rods.In another modification, described photoconduction has one and is used for the interlayer of light towards the inner bottom surface guiding of described packing cup; And at least two side layers, be used for the direction guiding of light towards a medial surface of described packing cup.The lower end of the described side layer of this modification is left agley from described interlayer.

Brief Description Of Drawings

Above-mentioned and others of the present invention, feature and advantage will from below in conjunction with accompanying drawing to becoming more clear the specific descriptions of the present invention, in each accompanying drawing:

Fig. 1 is the scheme drawing of an embodiment of a kind of aseptic packaging device constructed in accordance, it can make a continuous packaging film a part the packaging unit and the food of packing into therein simultaneously, and before single packaging unit is feeded to each, utilize a kind of wide spectrum (that is 170 nanometer to 2600 nanometers; 1.8 * 10 ¹⁵Hertz is to 1.2 * 10 ¹⁴) heterogeneous light high strength (promptly, the energy density of for example on the packaging film surface, record 0.01 joule/sq cm to 50 joule/sq cm, 0.5 joule/sq cm for example), the short time (promptly, 0.001 millisecond is to 100 milliseconds, for example, 0.3 pulse millisecond) makes the bacteria inactivation rate on the packaging film, thereby the food of aseptic packaging can be provided;

Fig. 2 is the concrete structure scheme drawing of the semi-sictional view of the charging of aseptic packaging device shown in Figure 1 and sterilization module;

Fig. 3 is the scheme drawing of another embodiment of a kind of aseptic packaging device constructed in accordance, it is to be seated in the prefabricated food containers with a food, and before described prefabricated food containers is feeded, utilize the heterogeneous light high strength of a kind of wide spectrum, short time pulse, make the bacteria inactivation rate on the described prepared food inner surface of container;

Fig. 4 is a kind of with thermoplastic plastic coiled material and lid material food prepared therefrom container, load the scheme drawing of another embodiment of the aseptic packaging device of described food containers then with a food, it is before described prefabricated food containers is feeded, utilize the heterogeneous light high strength of a kind of wide spectrum, short time pulse, make bacteria inactivation rate on the described prepared food inner surface of container;

Fig. 5 is the scheme drawing of an embodiment of pulsed light processing equipment, and it can utilize the pulse of heterogeneous light high strength short time of a kind of wide spectrum, end wise is carried out pulsed light by the pumpable food product around the outer shell of a long and narrow incoherent pulses light source handle;

Fig. 6 is the scheme drawing of another embodiment of pulsed light processing equipment shown in Figure 5, and it is to utilize the heterogeneous light high strength short time pulse of a kind of wide spectrum, handles being parallel to the pumpable food product that one or more long and narrow incoherent light sources advance;

Fig. 7 is the another embodiment scheme drawing of pulsed light processing equipment, and it can utilize the heterogeneous light high strength short time pulse of wide spectrum that each food is handled when food is handled worker station or treatment region through one;

Fig. 8 is the cutaway view of partly cut-away of a modification of an optical assembly, and it can be the charging shown in Figure 2 and the part of sterilization module;

Fig. 9 is the cutaway view of a modification of the part of optical assembly shown in Figure 8;

Figure 10 is the cutaway view of another modification of the described part of optical assembly shown in Figure 8;

Figure 11 is the lateral plan of described another modification of optical assembly, and it can be the charging shown in Figure 2 and the part of sterilization module;

Figure 12 is the concrete structure figure of the another kind of modification of optical assembly shown in Figure 11;

Figure 13 one can be used in the block diagram of the semi-sictional view of the outer protect glass in the optical assembly modification shown in Figure 12;

Figure 14 is the cutaway view of a part of described another modification of optical assembly shown in Figure 11;

Figure 15 is the scheme drawing of a modification of an optical fiber feedback system, and described optical fiber feedback system can be used in the described modification and described other modification of Fig. 8 and optical assembly shown in Figure 11;

Figure 16 one can adopt the block scheme of the close-loop feedback control system of optical fiber feedback system shown in Figure 14;

Figure 17 is one to be the cutaway view of solid system, and solid system of described system can be fixed in a flash light in the described modification and described other modification of Fig. 8 and optical assembly shown in Figure 11;

Figure 18 is the block diagram that can be used in the another kind of lamp component geometry of Fig. 8 and all lamp assemblies shown in Figure 11, reduce to minimum in order to diameter, thereby can reduce the minimum diameter of a packaging material tube that can use with these lamp assemblies described all lamp assemblies;

Figure 19 is the cutaway view of another modification of a lamp assembly, and it can be described another embodiment of Fig. 3 and package component shown in Figure 4 or the part of another embodiment;

Figure 20 is the concrete structure cutaway view of a lamp holding device, and it can provide irregularity for the U-shaped lamp that is used in the another modification of lamp assembly shown in Figure 19;

Figure 21 is the cutaway view of another kind of concrete structure that has wherein adopted the described lamp holding device of a uneven U-shaped lamp;

Figure 22 is the scheme drawing of an embodiment of a photoconduction, and described photoconduction can use with a straight pipe type flash light that replaces the U-shaped lamp in Fig. 3 and the aseptic packaging assembly shown in Figure 4;

Figure 23 is the block diagram of the modification of photoconduction embodiment shown in Figure 22;

Figure 24 is the top perspective view of a modification of another embodiment of a photoconduction, and this modification can be used with the straight pipe type flash light in Fig. 3 and the aseptic packaging assembly shown in Figure 4; And

Figure 25 is the face upwarding stereogram described modification, partly cut-away of another embodiment of photoconduction shown in Figure 24.

In each accompanying drawing, corresponding numbers is represented corresponding member.

The specific descriptions of preferred embodiment

Below be nonrestrictive to the specific descriptions of thinking best mode for carrying out the invention at present, it only is with describing groundwork of the present invention, protection scope of the present invention should be determined by appending claims.

Now see also Fig. 1, there is shown a kind of aseptic packaging device 10, wherein, volume traditional flexible sterile packing 102 lead to the absorption enhancer solution in the impregnating bath 106 according to traditional approach with a series of rollers 104.According to conventional situation, described packing can comprise usually: one has the laminar texture of one or more layers internal coating and sealing layer; One tinsel such as aluminium foil; One laminate layers or ply of paper; An and skin.Described internal layer and skin can be made by polyethylene.More advantageously, the inside face of described packing preferably can reflect broad-spectrum light at least in part.

Unnecessary absorption enhancer solution can be removed by roller 110, and packaging film can put 112 and make a longitudinal sealing pipe with vertically close sealing subsequently.According to required be lap seal or wing sealing, a band 108 can be added in one side of described packing, strengthening described longitudinal seam, and prevent that food from forming with the edge of packaging film 102 and contact.

An importance of aseptic packaging device 10 is will be in conjunction with specifically described hereinafter food charging of Fig. 2 and flash lamp component 200.In usefulness as a reference cited in this article in front ' 559 patent aseptic packaging device shown in Figure 1 has been described more specifically.

See also Fig. 2 below, there is shown a charging and a flash lamp component 200.Flash lamp component 200 shown in the figure comprises an external support pipe 202, have on the described external support pipe one or more around and the high-power xenon flash lamp 204 that distributes along external support pipe 202, like this, in case send pulse, the total inner surface of the described sealed tube (or packaging material tube) of longitudinal sealing will be subjected to wide spectrum (that is 170 nanometer to 2600 nanometers; 1.8 * 10 ¹⁵Hertz is to 1.2 * 10 ¹⁴) effect of incoherent heterogeneous light high strength (that is, the energy density of for example on the packaging film surface, record 0.01 joule/sq cm to 50 joule/sq cm), short time (that is, 0.001 millisecond to 100 milliseconds, for example, 0.3 millisecond) pulse.Flash light 204 can have multiple arrangement along being provided with of external support pipe 202, and the total inner surface of packaging material tube is exposed among the pulsed light.As shown in the figure, can adopt a spiral or spirally flash light, for example, also can adopt the flash light of 2 or 4 basic straight pipe types.Preferably make the outer protect glass 203 of a cylindrical shape around each flash light, be subjected to the splash of food, the influence of the contaminant of thawing, voltage level agent and other analogue to prevent each flash light 204.

When adopting a plurality of straight pipe type flash light, such as each the several flash light shown in the drawings that will be described below, can make these flash lights simultaneously luminous in one " gatling gun " formula device, can be luminous in couples, perhaps can be luminous successively.But each straight pipe type flash light is preferably simultaneously luminous, and flash of light so each time just can be adopted lower energy density values, but can keep a higher total energy density values again simultaneously, and packing are carried out the height sterilization.

Owing to cooperate mutually from the boundary of light between these flash lights of adjacent flashlamp, when a plurality of straight pipe type flash lights are simultaneously luminous, just can make flash of light each time adopt lower energy density values and can guarantee that the whole lip-deep of processing be minimum total energy density simultaneously.Under the contrast,, just then must adopt the flash of light of glistening and having high energy density at every turn each time, the total energy density of this minimum can be arranged to guarantee boundary between each flash light if adopt for example gatling gun formula device.Because each flash of light can be adopted lower energy density when making each flash light simultaneously luminous, therefore, each flash of light only need provide each flash light with less energy, can reduce flash light stress thus, prolongs the service life of flash light.And, if adopt simultaneously luminous mode, can also reduce the size of energy storage capacitor required in the flash generator supply thus, thus can cost-cutting, raise the efficiency.

Compare with the number that makes the luminous one by one required switch circuit of each flash light, make each flash light luminous number that can also reduce required switch circuit simultaneously, and can reduce the number of required equivalent current supply, to keep the low current value of each flash light between luminous.And, owing to can adopt high potential (terminal voltage that records when each flash light is connected), therefore, make each flash light luminous energy transfer efficiency that can also increase between power supply and each flash light simultaneously.

When adopting a plurality of straight pipe type flash lights and require flash light simultaneously luminous in couples, these flash lights can be coupled together with series system, thereby can make each to flash light play respectively each other forward current and the effect of return flow path.With each flash light is connected, just no longer need to provide an independent insulated return (or other return flow path), therefore, the general design of aseptic packaging device can be further simplified, and the space in the flash lamp component can be farthest effectively utilized.

Support tube 202 in-to-ins are a sterile food pipe 206 (or charging delivery pipes 206) outside.Flash light electric wire 208 and available flash light coolant lines 210 can be positioned at the centre (that is) of described external support pipe and sterile food pipe 202,206.In addition, a filtrated air 220 that obtains from suitable source of supply (not shown) can passed under the pressure between external support pipe and the sterile food pipe 202,206, so that be emitted on packaging material tube inside.Filtrated air 220 can comprise filtration, incineration and/or utilize as described herein that the heterogeneous light high strength short time pulse of wide spectrum makes with all technology.

At work, by a suitable horizontal close predetermined portions of putting into aseptic substantially food 212 in the described longitudinal sealing pipe of putting 114 (Fig. 1) transverse sealing earlier of sealing.Described sterile food can be handled or make with other processing method (such as described herein by utilizing the short time pulse of the heterogeneous light high strength of wide spectrum) with short time high temperature.Make the described longitudinal sealing pipe package length of advancing forward, flash lamp component 200 sends multiple pulses simultaneously, so that utilize the heterogeneous light high strength short time pulse of wide spectrum that the whole adjacent inner surface of the described longitudinal sealing pipe of food 212 tops is carried out sterilization repeatedly.

Filtrated air 220 leaves external support pipe 202 and makes it by each flash lamp component so that each flash light cooling, from described longitudinal sealing pipe, remove the ablation product that produces because of flash light discharge, and can prevent that dirt is deposited on the zone of treated mistake of packaging material tube.After transverse sealing, described packaging material tube can be divided into (for example cutting) and become several retail packagings 116 (also seeing also Fig. 1).

Now see also Fig. 3, this method also can be applied to the aseptic packing system of other form, adopts the aseptic packing system of prepared food container such as those.There is shown a kind of like this aseptic packaging device 30.Packing device 30 has adopted some to put into the prepared food container 302 of a sterilizing area 304 of device 30.Can be before with each container irradiation, can will spray in the container 302 just like hereinbefore described absorption enhancer solution for what select for use with a jetting system 306.Then, make each container handle the worker through a plurality of flash lights gradually and stand 308, handle in the worker station at described flash light, U-shaped flash light (U one flash light), straight pipe type flash light, bulb-type flash light and/or the flash light with other structure can be placed in vessel port top or its.Each flash light sends pulse, and promptly irradiation makes each food containers 302 of each flash light flash irradiation at least once.Subsequently, remove the processing worker and stand 308, and make advance forward one or more flash lights of each food containers 302 handle workers and stand 308, repeat described process then, thereby when food containers when advance forward in science and engineering station 308 everywhere, can make the total inner surface of each food containers 302 all can be subjected to the effect of the incoherent heterogeneous light high strength short time pulse of wide spectrum.

Can also adopt a filtrated air clean-up device,, prevent that dirt is deposited in the food containers 302 of treated (or sterilization), and each flash light is cooled off so that any ablative material is removed from food containers 302.

If desired, a suitable flash light group can also be set, during with the described treatment region of each food containers 302 process of box lunch the outside face and the edge surface of each food containers be handled.The food containers 302 of sterilization stands 312 through a stocker, at this worker station, the pretreatment food of after measured amount can be led in each food containers 302 of packing into.Then, adopt the conventional seals method, sealed with the top of a sterility cover to each food containers 302.

One stratiform filtrated air curtain can be arranged on whole aseptic packaging device 30 tops, be subjected to secondary pollution (that is, being subjected to the secondary pollution of germ) to prevent food containers 302.Can provide described filtrated air with a gas sterilizer 350, described gas sterilizer comprises an air inlet blowing engine 352, it can cross the air pump warp let-off one filter, 354 to one pulsed light treatment regions 356, and described pulsed light treatment region has a series of high-power xenon flash lamps 358 that are encapsulated in the reflection housing 360.Air constantly is forced through treatment region 356 with given pace, described air is with certain pulse repetition frequency of flash light 358, can guarantee: when air process pulsed light treatment region 356, all air can both be subjected to the effect of the incoherent heterogeneous light a plurality of high strength short time pulses of wide spectrum as previously described.

Preferably, according to present embodiment, the pulse of light is that richness is ultraviolet (for example, has 5% luminous energy wavelength at least between 170 and 380 nanometers), and comparatively ideal is the energy density with at least 0.1 joule of every sq cm, for example, has the energy density of at least 0.4 or 0.5 joule/sq cm at whole pulsed light treatment region 356.Duration of pulse usually in about 0.1 to 3 millisecond scope, for example 0.3 millisecond.

Many lamp reflectors array as reflection housing 360 parts can provide multidirectional basic irradiation uniformly for air or other gas that flows through pulsed light treatment region 356.Therefore, grit that air or other gas are entrained or colony forming unit are subjected to processing from all directions, and can not the oneself shield.In other embodiments, can adopt all other fluid treating devices as shown in Figure 5 and Figure 6 to replace the gas sterilizer 350 shown in the figure, outside the gas sterilizer 350 perhaps shown in the figure, adopt all other fluid treating devices as shown in Figure 5 and Figure 6 again.

That shown in Figure 4 is another embodiment of an aseptic packaging device 40, and it comprises two plastic package material coiled materials 402,404, and one of them coiled material is used to make the vessel of finished product packing, and another coiled material is used for packaging cover.The vessel packing material can be through an absorption enhancer bath 406 of Gong selecting for use, as described previously.Then, can make this packing material 402 through a suction and a drying nest, to remove unnecessary absorption enhancer solution.

Next, utilize a flash light array 408 along the working direction longitudinal extension of described vessel packing material, make described vessel packing material be subjected to the effect of the incoherent heterogeneous light high strength of a wide spectrum, short time pulse.Subsequently, can vessel packing material 402 be thermoformed into some appropriate containers such as cup, then, stand 412 a stocker with a building mortion 410, will be quantitative, through the food of aseptic process each container of packing into through measuring into.

Described lid packing material can utilize a flash light array 416 through an absorption enhancer bath 414 equally, makes it be subjected to the effect of the heterogeneous light a plurality of high strength of a wide spectrum, short time pulse.Subsequently, utilize described lid packing material that those are sealed through container charging, that be shaped.Described whole device can be remained under the filtrated air protective layer effect, thereby the possibility of secondary pollution can be reduced to minimum.

Now see also Fig. 5, there is shown a kind of scheme drawing that can utilize an embodiment of the device that the heterogeneous light high strength of wide spectrum, short time pulse handles pumpable food product (such as water), liquid or semi-fluid food (such as fruit juice or soup juice) or gas (such as air).Device 50 comprises that one forms the cylindrical shape reflection case of a process chamber 502, and food is from wherein flowing through, and it is located at around the light-pulse generator 504.In an illustrated embodiment, light-pulse generator is a high-performance Yin flash light, and it has a common suitable power supply (not shown) in order to start flash light work.

One liquid circulation pump 508 can be according to the pulse repetition frequency of light-pulse generator 504, flow velocity to the food that flows through process chamber 502 is controlled, like this, in the whole single dwell course that food stops in process chamber 502, all food of process all can be subjected to the high strength of the incoherent heterogeneous light predetermined quantity of a wide spectrum, the effect of short time pulse from described process chamber.Therefore, the food sterilization (or sterilization) that leaves process chamber 502 can be reached a desired level.

In certain embodiments, food process chamber 502 is to be provided with to such an extent that separate mutually with light-pulse generator 504, thereby can prevent that food from contacting with light source 504.

This can be by adopting a quartz sheath around light source 504 (or quartzy simplified) and food being realized through the outside of quartz sheath.Advantageously, cooling water expansion tank can circulate between light source 504 and quartz sheath.

The diameter of described process chamber can change according to several factors, concrete absorption characteristic, light source 504 that these factors include, but is not limited to pending food are (promptly, flash light) physics and operating characteristic, and the food mixability between each pulse of light (that is flash of light).Process chamber 502 can comprise one as its outer wall or as the reflection subassembly of an external reflectance device, so that will reflect towards described food through the illumination light of product.When adopting an external reflectance device, described reflection subassembly can comprise a quartzy cylindrical shell (or quartz tube), and food circulates within it and the external reflectance device is arranged on the quartz tube outside.

Should also be noted in that fluid (such as empty G﹠W) is to allow the light transmission that comprises most of UV spectrum.Therefore, the decay that causes because of the sorption in this medium is quite few, and flux density only depends on the distance effect of leaving light source and reduced.But for the fluid with very big sorption, flux density will reduce according to the function of the distance of leaving flash light and food sorption.In any situation, the desirable minimum value of flux density, for example, 0.4 or 0.5 joule/sq cm (perhaps even low reach 0.1 or 0.2 joule/sq cm, decide on the concrete germ for the treatment of deactivation) should be kept in whole described treatment region.

Perhaps or in addition, must make food generation immixture can both be subjected to the effect of the pulse of an amount of flux density and right quantity (to reach desirable deactivation, that is, sterilization or degree of disinfection or level) to guarantee all fluids of being handled.

Now see also Fig. 6, when flash light 504 (Fig. 5) being arranged on process chamber 502 (Fig. 5) in the device 50 shown in Figure 5 when inner, can with one or more flash lights 556 alternately (or in addition) be arranged on the outside of process chamber 552.There is shown a kind of preferable design, wherein, pending food is through the process chamber 552 of an employing transparent processing conduit (a for example quartz tube).Process chamber 552 is focal point settings along an ellipsoidal reflector 554.556 another focal point settings of one flash light along ellipsoidal reflector 554.

In a modification of illustrated embodiment, if desired, can adopt a plurality of ellipsoidal reflectors, each parasite has a flash light in a focus, then has described process chamber 552 (being long and narrow) in another focus (not shown) in this modification.

See also graphic modification again, flash light 556 can be by encapsulation in a quartzy cylindrical shell (or pipe), so as with a kind of with combine above that the described same way as of the foregoing description is carried out water cooling and/or the liquid open score filters.In this way, because therefore light pulse can be afforded redress to the optical absorption of processed liquid by the centre focus of described ellipsoidal reflector towards process chamber 552, like this, all liquid just can be subjected to light processing uniformly.

Now see also Fig. 7, there is shown a light and handle a stand embodiment of 60 of worker, described worker station comprises that one light-pulse generator/reflector array 602, one pending food 601 can pass through described array, fall or tumble.Light-pulse generator/reflector array 602 forms network 603 with pipeline with an electric pulse with the ground cable and links to each other, described network can be side by side or driving pulse light source/reflector array 602 in turn, and one cooling/optical filtering with liquid circulator 604, described circulator can make a liquid medium (such as water) cycle through an exterior quartzy cylindrical shell of each flash light that is positioned at light-pulse generator/reflector array 602, so that utilize selected, as to have required spectral transmission/spectral absorption characteristics liquid solution to cool off and/or spectral filtering.

Light-pulse generator/reflector array 602 adopts a plurality of flash lights and the parasite that links to each other, in a treatment region, to produce the incoherent heterogeneous light high strength of wide spectrum, short time pulse, in described treatment region, each pending food is subjected to the effect of the heterogeneous light high strength of a wide spectrum, short time pulse.Though what the embodiment 60 shown in the figure adopted is straight tube (that is, straight pipe type or cylindrical shape) flash light and reflecting element,, also can adopt other setting.For example, each flash light can be configured to almost arbitrary shape, just as neon sign can manufacture almost arbitrary shape.Equally, parasite can be made by the multiple different materials with a lot of different geometries, is directed to pending food with the light pulse with flash light.By New York John Wiley and Sons, Inc. company " optical design of parasite " (second edition) that publish, that write by William B.Elmer is the groundwork grammar of reflector design.

Though comprising, present embodiment much is used in food preservation, reducing live organism, bacterium or the quantity of virus or the possible purposes of enzyme activity, but, in the aseptic packaging method, the method that adopts high strength, short time, wide spectrum, polychrome, the incoherent pulses of light to come water and packing are carried out sterilization is the useful especially aspect of each embodiment described herein.In these methods, what adopt usually is that the wide spectrum flash light near, the far ultraviolet part that comprises spectrum is exported, and therefore, can adopt relatively low energy density.For example, even the density of biosome is very high (up to 1 * 10 ⁶To 1 * 10 ⁸), each flash of light is with the energy density of 0.4 or 0.5 joule/sq cm, (or low reach 0.1 joule/sq cm as long as flash of light once or twice, perhaps even the low 0.01 joule/sq cm or lower that reaches, decide on the germ for the treatment of deactivation) just can carry out deactivation to spore, vegetative bacteria, virus and other analogue, that is, sterilization or sterilization.

Now see also Fig. 8, there is shown the cutaway view of a modification of an optical assembly 80, described modification can be the part of charging shown in Figure 2 and sterilization module 200.Food pipeline 833 (or charging delivery pipe 833) is centered on by an external support pipe 832 (or filtrated air delivery pipe 832), and described external support pipe can be sent to filtrated air downwards one injecting type shunting outlet 835.A plurality of flash lights 831, for example 2 or 4, be arranged on around the parasite 832, in certain embodiments, described parasite can also be used as filtrated air delivery pipe 832.Each flash light 831 is fixed in the connection box 826, described connection box can also be used as a High-Voltage Insulation device, cooled water distributor, and the anchor fitting of flash light 831, a conductor fiber (not shown) and cooling water expansion tank delivery pipe 210 (or coolant line 210) (referring to Fig. 2).

Each flash light 831 all by a quartz tube 829 (or water jacket 829) institute around.Cooling water expansion tank can flow between each water jacket 829 and their flash lights 831 separately.Advantageously, cooling water expansion tank can also be as a current path that is used for the starting " binary pair " of flash light 831, thus can be with the usage space optimization.Described start trigger can provide an electric capacity for the earth system (known in the art) that is adopted, so that start the inceptive impulse of the light of described flash light.(people are wrapped in a spiral coil and without cooling water expansion tank with an electric wire around described flash light up to now, and described " binary pair " is with electric wire rather than cooling water expansion tank.In the art, with Helical Electric Wire as " binary pair " be for people well-known).Cooling water expansion tank can enter in each water jacket 829 by cooling line 210 (referring to Fig. 2).

One silica protective glass 828 around ground be arranged on all flash lights 831, filtrated air delivery pipe/parasite 832 and the delivery pipe 833 of feeding around.Outer protect glass 828 can be used for preventing that each flash light 831 and parasite 832 are subjected to splashing of food, and can prevent that they are subjected to be added to an effect that is sterilized the voltage level agent on packing pipe internal surface that (or processing) cross.

In addition, outer protect glass 828 can filter out the light of optical wavelength less than about 200 nanometers, described wavelength can cause protect glass 828 outsides formation ozone outside the packaging material tube in-to-in, ozone preferably is filled with nitrogen in the space in the protect glass 828 outside and in this space, forms, because can make 832 oxidations of filtrated air delivery pipe/parasite to prevent ozone.

Advantageously, present embodiment can be provided with the conductor fiber (not shown), and each end that can make the conductor fiber (not shown) is positioned near outer each flash light 831 of protect glass 828 in-to-ins, thereby can directly receive light or, conductor fiber can be set as shown in Figure 14, and this will be described hereinafter.

Each conductor fiber can make from flash lamp component 80 in-to-in light and pass the space of feeding between delivery pipe 833 and the filtrated air delivery pipe 832, and arrives a pair of diode (not shown) to the ultraviolet light sensitivity.This is arranged in the optical assembly 80 exterior screen light box (not shown)s the UV photosensitive diode.Preferably, the ultraviolet that adopts a neutral density filter and to be arranged between conductor fiber and the UV photosensitive diode is selected light filter, leaches with attenuate light and with the wavelength outside the ultraviolet light range.One output signal from the UV photosensitive diode is sent to a sample-and-hold circuit (not shown), and this circuit can promptly, be monitored by a control unit (not shown) after the flash of light in discharge each time.The output signal value of (in each flash of light process) is less than at the required predetermined minimum value of the arbitrary given interdischarge interval deactivation germ of each flash light 831 (for example if the peak intensity of the light that is carried with each conductor fiber is directly proportional, the peak value that light produced of new flash light 80%), described control unit can interrupt the operation of packaging material tube immediately, till can remedying sterilization again again to optical assembly 80.

Below in conjunction with Figure 14 and Figure 15 conductor fiber, UV photosensitive diode and control unit are described further.

Now see also Fig. 9, there is shown the broken away view of the interior geometry that can use with flash lamp component shown in Figure 8 80.Shown in the figure is outer protect glass 928, flash light 931, water jacket 930, parasite 937, charging delivery pipe 933, filtrated air delivery pipe 932 (in the embodiment shown in fig. 9, it is what to separate with parasite 937) and a packaging material tube 917.

As above described in conjunction with Figure 8, one food to be packaged can be sent to a loading area (promptly by charging delivery pipe 933, the part of described aseptic packaging device, it be positioned at flash lamp component under, food is directed in the packaging material tube in this part) (not shown).Charging delivery pipe 933 is centered on by filtrated air delivery pipe 932, and it can be used for that filtrated air is delivered to injecting type downwards and distribute gas port 835 (referring to Fig. 8).

Filtrated air can keep having a positive pressure in the packaging material tube 917, like this, when the work of described packing device, perhaps when it quits work, can keep flash lamp component 80 shown in Figure 8 on every side and the gnotobasis of top.Filtrated air externally protect glass 928 cools off, outside if the part of the light that emits from each flash light 931 is absorbed in the protect glass 928, will make outer protect glass 928 heating like this, so the cooling effect of filtrated air is more favourable.Filtrated air delivery pipe 932 can also be used as a conveyer, transmits the pre-sterilizing agent in the time of need carrying out sterilization before using with convenient aseptic packaging device.

Filtrated air delivery pipe 932 device 937 that is reflected centers on, and its (parasite 937) can be handled or make with reflective agent, thereby can carry out high reflection to the light of wavelength between 200 nanometers and 1200 nanometers.Preferably a kind of Labsphere of described parasite by New Hampshire city, Inc. company is the sleeve that polytetrafluoroethylene sill that trade mark is sold is made with SPECTRALON, as authorizing U.S. Patent No. 4 Mr. Springsteen, " laser resonance modulator material " by name March 27 nineteen ninety, 912, the sort of material described in 720, this patent usefulness as a reference cited in this article.Parasite 937 preferably adopts a kind of like this geometry design,, can obtain even light distribution on the inside face of packaging material tube 917 that is.

Advantageously, if parasite 937 conducts electricity, then described parasite can also be used as the ground wire of each flash light 931, or current return circuit, so just can save the space (referring to Fig. 8) in the assembly 80.But when each connected with series system flash light, each can provide a current return circuit mutually to flash light, thereby just no longer needed a ground wire.)

In illustrated embodiment, each flash light 931 is one or more, for example, two or four, and be gas-discharge lamp, such as the lamp that adopts 230 millimeters O shapes circles to install, this lamp is can be from the PurePulse Technologies in San Diego, CA city, and is that Inc. company has bought, be the lamp of component part NO. with No.01812-525.Each flash light 931 is provided with around parasite 937, and is fixed in the connection box 826 (referring to Fig. 8), and described connection box can be used as a High-Voltage Insulation device, cooled water distributor, and can be used for flash light 931 as one.The anchor fitting of conductor fiber and water jacket 930.As shown in the figure, flash light 931 by 930 of water jackets around, and between water jacket 930 and flash light 931, formed a space, water can flow through described space, thereby each flash light 931 is cooled off, and can prolong the service life of flash light 931 thus.The water that flows in the space between parasite 937 and filtrated air delivery pipe 932 can cool off parasite 937.

Flash lamp component 80 by 928 of outer protect glasss around, described outer protect glass is as indicated above to be made by quartz.As indicated above, the purpose of outer protect glass 928 is in order to prevent that flash light 931 and parasite 937 are subjected to splashing of food, and can prevent that they are subjected to the effect of pre-sterilizing agent.And the light that outer protect glass 928 can be shorter than wavelength 200 nanometers leaches, and just can not form ozone between protect glass and the packaging material tube 917 like this outside described.Space filling between protect glass 928 inside and outside protect glasss 928 and parasite 937 and the water jacket 930 has nitrogen outside, thereby can prevent to form ozone in these spaces, otherwise ozone can make that parasite 937 is oxidized.

Now see also Figure 10, there is shown the broken away view of a modification of the described part of optical assembly shown in Figure 8, wherein, each side has adopted the space optimization feature according to the present invention, with optimization utilize the space, thereby this modification is used with the packaging material tube of minor diameter more.There is shown flash light 1031, charging delivery pipe 1033, filtrated air delivery pipe 1032, outer protect glass 1028, and packaging material tube 1017.Should also be noted in that and omitted parasite 937 (Fig. 9), water leg 930 (Fig. 9) in the modification shown in Figure 10.

With a reflective agent (that is, through reflection handle) outside face of filtrated air delivery pipe 1032 is handled, thus can be 31 that emit from each flash light, wavelength light in the zone between 200 nanometers and 1200 nanometers carries out high reflection to those.Described reflective agent preferably is the polytetrafluoroethylene sill that trade mark is sold on market with SPECTRALON, the material described in the patent of ' 720 as mentioned above.Advantageously, apply filtrated air delivery pipe 1032, just no longer need an independent parasite 937 (used in all modification as shown in Figure 9) with this reflective agent.

With water is flowed in the space outerpace of protect glass 1028 inside, each flash light 1031 and filtrated air delivery pipe outside, can filtrated air delivery pipe 1032 and each flash light 1032 that also is used as parasite be cooled off, therefore just no longer need water jacket 930 (Fig. 9).If the reflective agent on the filtrated air delivery pipe 1032 is metallic, be subjected to the infection of water in order to prevent reflective agent, can be applied it with thin layer of silicon dioxide.

Now see also Figure 11, there is shown the lateral plan of another modification of optical assembly shown in Figure 8.Shown in the figure be: outer protect glass 1117, and once holding element 1120 and holding element 1122,1124 on first, second.

With the same at Fig. 8, Fig. 9 and modification shown in Figure 10, the effect of outer protect glass 1117 is to prevent each flash light (not shown), parasite (not shown), water jacket (not shown) and be contained in the effect that other structures in the optical assembly are subjected to splashing of food and pre-sterilizing agent.

Now see also Figure 12, it is the three-dimensional exploded view of optical assembly modification shown in Figure 11.Shown in the figure be: outer protect glass 1217, flash light 1231, parasite 1237, water jacket 1230, holding element 1222,1224, a quartz window 1250, a connection piece 1252, a ripple sleeve 1254, another holding element 1256, a contact flexible pipe 1258, a propelling unit 1260, a flange 1262, a parasite sleeve 1264, rigging screw 266 down on the holding element 1220, first and second down, and U-shaped sealing member 1268.

The assembling of above-mentioned member as shown in figure 12, this is understandable for person skilled in the art.Outer protect glass 1217 is preferably made by quartz; Flash light 1231 can be straight pipe type (or cylindrical shape) flash light, such as 230 millimeters lamps that O shapes circle is installed can having bought from the PurePulse Technologies company in San Diego, CA city, with No.01812-525 be component part NO.; Parasite 1237 and parasite sleeve 1264 be the stainless steel tube sealed by a sleeve of its outside preferably, and described sleeve is by such as being that the polytetrafluoroethylene sill that trade mark is sold on market is made the material as patent described in ' 720 with SPECTRALON; Water jacket 1230 preferably has the quartzy cylindrical shell of certain size, thereby can hold each flash light 1231 and a space for cooling water expansion tank mobile therein (or circulation) can be provided; One and another down holding element 1220,1256 and on first, second holding element 1222 preferably make by the polytetrafluoroethylene that has added 25% glass.

The effect of outer protect glass 1217, flash light 1231, parasite 1237 and water jacket 1230 be identical substantially in conjunction with Fig. 9 and the described effect of Figure 10.But, should also be noted in that, modification feature is as shown in the figure: it is to adopt between parasite 1237 and the water leg 1230, and and outer protect glass 1217 between the space of (Figure 12) be used as the return flow line of cooling water expansion tank mobile between water jacket 1230 and flash light 1231.For example, cooling water expansion tank can be directed downwards mobile by the space between flash light 1231 and the water jacket 1230 as shown in figure 12, and can with upwards flow through water jacket 1230 and parasite 1237 and outside between the protect glass 1217 the space and return.

Now see also Figure 13, there is shown the partial cross-sectional perspective view that can be used in the described outer protect glass in the optical assembly modification shown in Figure 12.Shown in the figure is outer protect glass 1300, and it is made by quartz glass, and has the second outer top coat 1304 that the outer top coat 1302 and of one first platinum is positioned on the first outer top coat 1302, is made by polytetrafluoroethylene.The first and second outer top coats 1302,1304 cover outer protect glass 1300 outside faces on the end 1306,1308 of outer protect glass 1300, stay the transparent and exposed core 1310 of outer protect glass 1300, therefore, the light that can emit the flash light (not shown) of being sealed in it conducts.

Outer protect glass 1300 is held in place with described upper and lower holding element (referring to Figure 12 and Figure 13).Some packing rings (referring to Figure 14) are arranged on upper and lower holding element, and between the inside at the two ends 1306,1308 of outer protect glass 1300.These packing rings form a watertight packing spare between end 1306,1308, thereby can make the cooling water expansion tank that send to be passed be sent to described holding element down (or going up holding element) from the described holding element (or following holding element) of going up by outer protect glass 1300, so that cooling water expansion tank returns from described flash light, and if possible, carry out spectral filtering, such as described in this article.

Advantageously, the first and second outer top coats 1302,1304 can prevent that light from passing the end 1306,1308 of outer protect glass 1300, that is, the described first and second outer top coats 1302,1304 one of them is opaque basically at least.As a result, from described flash light emit and by packaging material tube backward towards described flash light and the downward end 1306,1308 of protect glass 1300 outside the light of each packing ring reflection just can not penetrate.Therefore, can prevent that light from reflexing on each packing ring because light can destroy the poly-mer in each packing ring, can prolong the service life of each packing ring, but also help the shutdown repair time of aseptic packaging device is reduced to minimum so prevent reflection of light.

Adopt another advantage of the first and second outer top coats 1302,1304 to be: the end of protect glass 1300 was chipping or split outside they helped to prevent in treating process.

In order further to strengthen these advantages of the first and second outer top coats 1302,1304, advantageously, these coatings are overlaid on the lower edge 1312 of end 1306,1308, upper limb 1314.But in an illustrated embodiment, the first and second outer top coats do not relate to the inside of end 1306,1308 around the last lower edge 1312,1314 of end 1306,1308.

The first outer top coat 1302, that is, the coating operation of platinum coating preferably utilizes TCD thermochemical deposition method known in the art to finish, thereby can obtain the thickness of 2000 to 3000 dusts.The second outer top coat 1300, that is, the coating operation of polytetrafluorethylecoatings coatings preferably utilizes such as finishing in electrostatic processes known in the art, thereby can obtain about 0.010 inch thickness.

The second outer top coat 1304 preferably with powder or granular form, for example adopt the PF8 polytetrafluorethylepowder powder and be applied as all thin layers, and in this coating process, sprayed or spray-painting becomes white.As above pointed, adopt electrostatic processes to apply described all thin layers, after the coating operation, carry out sintering more then, with these thin layers are adhered on the outer protect glass and/or the thin layer that apply morning of the second outer top coat 1304 on.

Should also be noted in that, the first outer top coat 1302, promptly, the platinum coating, also help the second outer top coat 1304, that is, polytetrafluorethylecoatings coatings adheres on the outer protect glass 1300, and can make end 1306,1308 be in pressured state, so just can strengthen the intensity of end 1306,1308.The second outer top coat 1304 can make most of light go out from end reflections.In other modification of present embodiment, can omit one of them in the first and second outer top coats 1302,1304, thereby only adopt the first outer top coat 1302 or the second outer top coat 1304.

In the another modification of present embodiment, it also is comparatively ideal with a kind of and above-mentioned same way as that is described at outer protect glass the end of water jacket being applied.

Now see also Figure 14, it is the concrete structure cross-sectional schematic of the part of Figure 11 and optical assembly modification shown in Figure 12.There is shown: holding element 1458, charging delivery pipe 1437 on the holding element 1420, second on the outer protect glass 1417, all flash lights 1431, first, and parasite 1431.Also show a pair of flash light O shape circle 1431 and one outer protect glass O shape circle 1452 among the figure.

Flash light O shape circle 1450 and outer protect glass O shape circle 1452 are to be used for respectively between last holding element 1458,1420, and formation seals between each flash light 1431 and the outer protect glass 1417.The end 1460 of each flash light 1431 is positioned on second in the holding element 1458, and the connection lead 1454 of electricity is connected between each flash light 1431 and the suitable power supply (not shown).Charging delivery pipe 1437 preferably is coated with a sheath 1456 of being made by the polytetrafluoroethylene sill, described polytetrafluoroethylene sill is to be that trade mark is the sort of what sell on the market and describe in ' 720 in aforementioned patent with SPECTRALON, this patent usefulness as a reference cited in this article.

Also show water jacket 1459 and first, second outer top coat 1464,1466 among the figure; They specific descriptions have been made hereinbefore.As those skilled persons in present technique field are to understand, the first and second outer top coats 1464,1466 can protect outer protect glass O shape circle 1452 in case be subjected to those for example by packaging material tube 917 and 1017 (Fig. 9 and Figure 10) backward towards the influence of the light of outer protect glass 1417 reflections.

Now see also Figure 15, it is the scheme drawing that can be used in a modification of the optical fiber feedback system in Fig. 8 and the optical assembly modification shown in Figure 11.Shown in the figure is outer protect glass 1528, packaging material tube 1517, water leg 1529 and flash light 1531.Also show a light 1550 among the figure, this light autoflash lamp 1531 emits, and passes quartz water chuck 1529 and is radiated on the inside face 1552 of packaging material tube 1517 with outer protect glass 1528.

What reflect from the inside face 1552 of packaging material tube 1517 is first reflected light rays of light 1554.Groove 1556 shown in the figure is opened in the inside face 1558 of protect glass 1528 outside.The cross-sectional plane of described groove 1556 is common right-angled triangle, and it can make the outside of light 1550 protect glass 1528 outside the inboard of outer protect glass 1528 freely arrives.

But first reflected light rays 1554 will be turned to by a upper surface 1560 of groove 1556.As a result, one second reflected light rays 1562 outside in the protect glass 1528, outside one is parallel to the central axis (not shown) of protect glass (preferably cylindrical shape) 1528 tracks and upwards guided.1564 places, upper end of protect glass 1528 outside, second reflected light rays 1562 is caught by a conductor fiber 1566, and passes conductor fiber 1566 and arrive second end 1570 of conductor fiber 1566 from first end 1568 of conductor fiber 1566.In case penetrate from second end 1570, a changed course light 1572 will enter in the diode 1574 of a pair of ultraviolet light sensitivity.Before arriving described diode to the ultraviolet light sensitivity, changed course light 1572 can pass a neutral density filter 1580 and/or " band is logical " light filter 1582, described bandpass optical filter can allow the light in ultraviolet spectrum pass, but the light beyond the block ultraviolet spectrum.

The diode 1574 of this ultraviolet light sensitivity and one can provide the detector circuit 1576 of an output to link to each other, and described output can reflect the light quantity that is radiated on the UV photosensitive diode 1574.Described detector circuit 1576 can comprise a sample-and-hold circuit, in this case, described output can be reflected in the peak value light quantity that is radiated in flash of light each time (resetting described sample-and-hold circuit before the flash of light each time) process on the UV photosensitive diode 1574.This light quantity can reflect the light quantity on the inside face 1552 that is radiated at packaging material tube 1517 again.According to this output, can determine whether the described inside face place of packaging material tube 1517 has enough energy density values, so that packaging material tube 1517 is purified.

Advantageously, this modification not only can be carried out (indirectly) to the light quantity that is produced by each flash light 1531 and be detected, and, it is also important that, can also the light quantity on the described inside face that be radiated at packaging material tube 1517 be detected.This is favourable, because if an outside face of outer protect glass 1528 is dirtier, these light quantities (that is, the light quantity that is produced be radiated at inside face 1552 on light quantity) may be different.

If the energy density deficiency at inside face 1552 places of packaging material tube 1517 promptly, is lower than predetermined threshold, 0.4 or 0.5 joule/sq cm for example, then can increase the power of presenting to flash light 1571, and described packing device is quit work, until till the maintenance well.

Now see also Figure 16, it is a kind of block scheme that can adopt the close-loop feedback control system of optical fiber feedback system shown in Figure 15.Shown in the figure be: UV photosensitive diode 1620 (or other suitable UV-detector), detector circuit circuit 1622 and flash light 1631.As shown in the figure, light from flash light 1631 is conducted to a UV photosensitive diode/detector circuit 1620,1622, as described above, described UV photosensitive diode/detector circuit can be measured the light quantity of the inside face 1552 (Figure 15) that arrives packaging material tube 1517 (Figure 15) and/or the light quantity that flash light 1631 is produced.Mentioned as mentioned, described UV photosensitive diode/detector circuit 1620,1622 can comprise a sample-and-hold circuit that reset before each flash of light.Output signal (that is a detection signal) from described ultraviolet checking system (1620,1622) is led to a differential circuit 1650.Described detection signal can reflect the light quantity of the inside face 1552 (Figure 15) that arrives packaging material tube 1517 (Figure 15) and/or the light quantity that is produced by flash light 1631, or when UV photosensitive diode/detector circuit 1660,1662 comprises a sample-and-hold circuit, can reflect the peak value light quantity of this light.One set point signal from ultraviolet set point circuit 1652 also is led to described differential circuit 1650.

Differential circuit 1650 can be measured the difference between described ultraviolet set point signal and the detection signal, and can produce a differential wave in view of the above.Described differential wave is led to an integrator 1654, and described integrator can offer a control signal one power supply 1656.Perhaps, can adopt ratio one integration, one derivator (PID) or its to have the device of propagation function, with instead of integration device 1654.Power supply 1656 utilizes described control signal to set the voltage level that the voltage that power supply 1656 produces is exported.Described voltage signal is provided to an impulse deviser 1658, and by described impulse deviser 1658 utilizations, thereby can produce voltage impulse, described voltage impulse is provided for flash light 1631, makes described flash light produce the heterogeneous light high strength of wide spectrum, short time pulse.

Advantageously, when UV photosensitive diode/detector circuit 1620,1622 detected energy density values on the described inside face that is radiated at packaging material tube 1517 (Figure 15) and progressively reduces, the differential wave that is produced by differential circuit 1650 just increased.As a result, the described control signal that is produced by integrator 1654 just can be power supply 1656 provides signal, thereby can produce a bigger voltage output, and the amplitude of the described voltage signal of issuing impulse deviser 1658 is increased.This makes those amplitudes by impulse deviser 1658 voltage impulses that produce, that offer flash light 1631 increase again, and the light intensity that flash light 1631 is produced increases.The flash light density of this increase should be able to make the energy density values at described inside face place of packaging material tube 1517 (Figure 15) increase usually again, and is accompanied by reducing of differential wave.

Like this, a closed loop feedback system just is provided, wherein, when when the detected energy density values in inside face 1552 places of packaging material tube 1517 reduces, the light intensity that is produced by flash light 1531 just increases, and reduces thereby can compensate this of detected energy density values.When inside face 1552 places that detect packaging material tube 1517 had a suitable energy density values, the light intensity that flash light 1531 is produced stopped to increase.(in an identical manner,, then reduce the light intensity that is produced by flash light 1531, until detect till the suitable energy density values if it is too big to detect the energy density values at inside face 1531 places.)

When the voltage level of the voltage impulse that offers flash light 1631 no longer can increase owing to service condition, for example, under the situation of scheduled volume less than the maximum voltage of flash light 1631 and/or power supply 1656, by UV photosensitive diode/detector circuit 1620,1622 detected energy density values still fall to and are lower than by the indicated ideal capacity density threshold of a threshold circuit 1662, (described comparator will be from UV photosensitive diode/detector circuit 1620 with one for a faulty condition can be triggered (or indication) by a comparator 1660,1622 output signal is compared from the threshold signal of threshold circuit 1662 with one), described breakdown signal can be used for for example making the processing operation of packaging material tube 1517 (Figure 15) to stop (promptly, sterilization, charging and sealing), till the aseptic packaging device keeps in repair, for example, up to replacing flash light 1631 and/or until can remove the food splash from the outside face of outer protect glass 1528, till the food and/or pre-sterilizing agent of ablating.

Now see also Figure 17, it be used for the two ends of a flash light 1731 be fixed in Fig. 8 and optical assembly modification shown in Figure 11 above and/or under in the holding element be the cutaway view of solid system.Flash light 1731 shown in the figure has a metal connector 1750, and it enters a holding chamber 1752 (or cylindrical chamber).Described holding chamber 1752 is formed by a part of for example descending holding element 1754 and compressor cylinder 1756, described holding element down can be made by the polytetrafluoroethylene that has added 25% glass fibre, and described compressor cylinder also can be made by the polytetrafluoroethylene that has added 25% glass fibre.What link to each other with metal connector 1750 is one can provide the lead cable of current path of a turnover for flash light 1731.With following holding element 1754 all-in-one-pieces in the cylindrical chamber for example 1752 are truncated cone shape flanges 1758.The orientation of one truncated cone shape lower surface 1760 of truncated cone shape flange 1758 is the directions that facing substantially away from flash light 1731, and truncated cone shape lower surface 1760 is less than 90 degree with respect to a cylindrical outer surface of metal connector 1750, for example is 45 degree.The orientation of the vertical surface 1762 of truncated cone shape flange 1758 is to face flash light 1731, and described vertical surface is preferably perpendicular to an inwall of holding chamber 1752 and perpendicular to the cylindrical outer wall of metal connector 1750.

Be located between the truncated cone shape lower surface 1760 of compressor cylinder 1756 and truncated cone shape flange 1758 is to put in the lump to be tight against at the compressible rubber packing ring 1764 on the frusta-conical surface 1760 (or O shape circle 1764) and to put the sliding shim 1766 that is tight against on compressor cylinder 1756 in the lump.Compressor cylinder 1756 comprises a threaded portion 1768 of matching with the threaded portion 1770 of following holding element 1754.

When compressor cylinder 1756 for example along with one for example and when for example making clickwise towards the rotating vector power of flash light 1731, the threaded portion 1768 of compressor cylinder 1756 and the threaded portion 1778 of following holding element 1754 combine, can be on described sliding shim 1766 with a compression force, the direction of described compressive force is parallel to the central axis of cylindrical chamber 1752 and towards truncated cone shape flange 1758.In response to this application force, sliding shim 1766 can be pressed on the packing ring 1764, from and described packing ring can be pressed on the frusta-conical surface 1760 of truncated cone shape flange 1758.

In response to the application force that acts on the packing ring 1764, packing ring 1764 is radially inwardly guided under the effect of frusta-conical surface 1760.So just between metal connector 1750, packing ring 1764 and truncated cone shape flange 1758, form a sealing.

Advantageously, this can prevent that cooling water expansion tank is in flash light 1731 outsides and water jacket in-to-in one zone 1772 inflow cylindrical chamber 1752 and from holding element 1754 outflows down.Advantageously, this leak free formation is irrelevant with the tolerance of flash light 1731 inconsistency on diameter in inconsistency on the length and flash light 1731.

And, can be to graphic modification correct, one glass part of flash light 1731 is stretched into downwards in the cylindrical chamber 1752, thereby can between the described glass part and truncated cone shape flange 1758 of flash light 1731, (with relative between described metal connector 1750 and the frusta-conical surface 1760) form sealing.In this way, can prevent that cooling water expansion tank from contacting with metal connector 1750, this may be more favourable in the application-specific of this modification.

Now see also Figure 18, it is the block diagram of the geometry of another kind of flash lamp component, described flash lamp component can use in Fig. 8 and flash lamp component shown in Figure 11, in order to farthest to reduce the diameter of flash lamp component, can make the diameter of the packaging material tube that uses with described flash lamp component reach minimum thus.Shown in the figure be: the packaging material tube 1802 that charging delivery pipe 1800, a diameter reduce (part is cut open), and first and second flash lights 1804,1806.The diameter of the packaging material tube 1802 that diameter reduces can for example be about 3 centimetres to 7 centimetres, for example 5 centimetres.One outer protect glass (not shown) can be used as Fig. 8 and embodiment shown in Figure 11, still, has omitted described outer protect glass among Figure 18, so that Figure 18 is more clear.

First flash light 1804 along the charging delivery pipe 1800 top 1808 and put in the packaging material tube 1802 that diameter reduces.The inside of the packaging material tube 1802 that reduces at diameter, the top 1808 of charging delivery pipe 1800 is parallel juxtaposed with last flash light 1804, and by direction shown in Figure 180, top 1808 is arranged on the right side, on the left of last flash light 1804 is arranged on.

On the charging top 1808 of delivery pipe 1800 and the below of first flash light 1804 (or going up flash light 1804) be the transition portion 1810 of charging delivery pipe 1800.Transition portion 1810 is offset areas of charging delivery pipe 1800, and this offset area carries out the transition to bottom 1812 from the top 1808 of charging delivery pipe 1800.

Bottom 1812 is that to be parallel to second flash light 1806 (or glitter down lamp 1806) juxtaposed.The inside of the packaging material tube 1802 that reduces at diameter, by direction shown in Figure 180, bottom 1812 is arranged on the left side, therefore 1806 on glitter down lamp is arranged on the right side, is the opposite side that has been occupied the packaging material tube 1820 that diameter reduces from those by top 1808 and last flash light 1804 occupied sides.

Therefore, the right side of transition portion 1810 packaging material tube 1802 that charging delivery pipe 1800 can be reduced from diameter carries out the transition to the left side (by direction shown in Figure 180) of the packaging material tube 1802 that diameter reduces.This transition can will be kept supplying the left side of the arrangement space of flash light 1804 usefulness at charging delivery pipe 1800 in the described packaging material tube, and with the arrangement space used for the glitter down lamps in the packaging material tube 1800 on the right side of charging delivery pipe 1800, still can hold the packaging material tube 1802 that diameter reduces simultaneously.

In this way, because the packaging material tube 1802 that diameter reduces is from upper and lower flash light 1804,1806 processes, when last flash light 1804 and glitter down lamp 1806 were worked simultaneously, they can make the total inner surface (right side and left side) of the packaging material tube 1802 that diameter reduces be under the heterogeneous light one or more high strength of wide spectrum, the short time pulsating effect.

But, meanwhile, compare with known devices up to now, be used for being centered around the required inner spaces amount of the charging pipe 1800 in the packaging material tube 1802 that diameter reduces, upper and lower flash light 1804,1806, promptly its diameter has obtained reducing significantly.

Now see also Figure 19, it is the cutaway view of the another modification of an optical assembly, and described modification can be the part of another embodiment of Fig. 3 and aseptic packaging assembly shown in Figure 4.There is shown: an outer protect glass 1900 and has the U-shaped flash light 1902 (or U-shaped lamp 1902) of one first metal electrode 1904, one second metal electrode 1906, one the 1 shape circle, 1908,1 the 2nd O shape circle, 1910 and 1 the 3rd O shape circle 1912.Also show a hot shoe 1914 that comprises flash light holding device 1915 among the figure, described flash light holding device can make U-shaped lamp electrode separation have heterogeneity.

During work, in electrode 1904, the 1906 insertion hot shoes 1914 (or flash light holding element 1914) with U-shaped lamp 1902, O shape circle 1908 is separated the inner wall sealing of first electrode 1904 with first lamp socket 1916 of flash light holding element 1914.Lamp holder device 1915 is contained in second electrode 1906 inside of second lamp socket 1918 of flash light holding element 1914, the 2nd O shape circle 1910 can separate the inside face sealing of second electrode 1906 with flash light holding device 1915, and 1912 on the 3rd O shape circle can separate an outside face of flash light holding device 1915 and the inside face sealing of second socket 1918.

Advantageously in an inside that is formed near first groove 1920 the fin 1922, be provided with the 2nd O shape circle 1910 to such an extent that be tight against the described inside face of flash light holding device 1915, described fin protrudes into the inside of flash light holding device 1915.This fin 1922 can prevent that the 2nd O shape circle from exceeding the preset range in the flash light holding device flash light holding device 1915 inner rollings.Near described first groove was positioned at U-shaped lamp 1912 along an inner peripheral of flash light holding device 1915, it was cylindrical substantially.

The 3rd O shape circle 1912 is positioned at another groove 1924, and described another groove is formed between the fin 1926 that a pair of autoflash lamp holding device 1915 radially outward protrudes out.Described another groove 1924 is positioned at the distant place of leaving U-shaped lamp 1902, encloses the opposite end of groove 1920 at 1910 places at one of flash light holding device 1915 with the 2nd O shape.The same with the 2nd O shape circle 1910, described another groove can prevent that the 3rd O shape circle 1906 is in the rolling of the outside of flash light holding device 1915 and exceed the preset range that is limited by a pair of fin 1926.

Advantageously, flash light holding device 1915 is made by a kind of rigid metallic material such as corrosion-resistant steel, and the near-end of flash light holding device 1915 can laterally move with respect to the far-end of flash light holding device, in this way, flash light holding device 1915 can advantageously overcome the inconsistent problem of spacing between first and second electrodes 1904,1906 of U-shaped lamp, simultaneously, more advantageously can also make between socket 1914 and the electrode 1904,1906 and keep watertight packing.

Advantageously, this water-stop can make water circulate in fluid-encapsulated backflow, and described fluid-encapsulated loop comprises that one is positioned at outer protect glass 1900 but is positioned at the space in U-shaped lamp 1902 outsides.This water, such as known in the art, can provide cooling effect for U-shaped lamp 1902, thereby prolong the service life of U-shaped lamp 1902, and can increase the flash of light repeated freqnency that U-shaped lamp 1902 can be used, but also the spectral filtering effect can be provided for the light that emits from U-shaped lamp 1902.

Now see also Figure 20, it is the concrete structure cutaway view of flash light holding device 2000.There is shown: second lamp socket 2008 of second electrode 2002, the 2nd O shape circle the 2004, the 3rd O shape circle 2006, flash light holding device 2000 and socket 2010.As we can see from the figure, electrode 2002 has been inserted in second lamp socket, the 2008 in-to-in flash light holding devices 2000, and the 2nd O shape circle 2004 is positioned at groove 2012, and described groove is formed on the inner peripheral place of the flash light holding device 2000 of its proximal end.The 3rd O shape circle 2008 is between the inside face and another groove 2014 of second lamp socket 2008, and described another groove is positioned at the place, outside of the far-end of flash light holding device 2000.

Now see also Figure 21, it is the cutaway view of the another kind of structure of flash light holding device 2100, has wherein adopted a uneven U-shaped lamp.There is shown: second lamp socket 2104 of second electrode 2102, socket 2106, flash light holding device 2100, the two O shapes circle the 2108 and the 3rd O shape circle 2110.

As what can see from figure, the near-end of flash light holding device 2100 has been made side travel with respect to the far-end of flash light holding device 2100, with and U-shaped lamp electrode between uneven spacing adapt.The described near-end of flash light holding device 2100, that is, this moving that is adjacent to that end of described U-shaped lamp forces the inside face of this near-end of described flash light holding device than more close second lamp socket 2104 of another inside face of second lamp socket 2104.

Advantageously, can by the second and the 3rd shape circle 2108,2110 be kept perfectly hermetically sealed, meanwhile can also adapt with uneven U-shaped lamp.Therefore, the flash light holding device can advantageously reduce the accuracy of manufacture of the U-shaped lamp that therewith uses, thereby can reduce the generation and the remarkable cost-cutting of expense material.

Now see also Figure 22, it is the scheme drawing of an embodiment of the photoconduction 2200 that can use with the straight pipe type flash light (not shown) in the aseptic packaging assembly among Fig. 3 and Fig. 4, wherein no longer need with U-shaped flash light (U-shaped lamp), and can eliminate that the U-shaped flash light brought, the problem such as cost and electrode separation inaccuracy.Described photoconduction shown in the figure is lowerd and is entered in the packing cup 2202, thereby high strength, the short time pulse of spectrum polychromatic light 2203 can be transmitted on the inside face 2204 of packing cup 2202 from described straight pipe type flash light.Preferably, photoconduction 2200 is made by a kind of material such as quartz, and quartz is a good optical conductor in very wide spectral region.

Now see also Figure 23, it is the block diagram of the modification of photoconduction embodiment shown in Figure 22.As we can see from the figure, photoconduction 2300 is positioned at the top of a packing cup 2302.Described photoconduction has adopted three quartz layers 2304,2306,2308, and in a upper end 2310 of described quartz layer, the cross-sectional plane of described quartz layer is approximate rectangular, and can be with light guiding downwards substantially, direction as shown in figure 23.At 2312 places, lower end of quartz layer 2304,2306,2308, an interlayer 2306 continues downwards, thereby light can be projected on the bottom surface of packing cup 2302.Each side layer 2304,2308 all towards the direction of leaving interlayer 2306, towards medial surface 2314 bendings of packing cup 2302.The edge 2316,2318 of side layer 2304,2308 is crooked proper when described photoconduction is seen in the top (direction as shown in figure 23), described photoconduction looks that its cross-sectional plane is rounded substantially, thereby helps photoconduction 2300 is inserted internal cross section in the circular packing cup 2302.

During work, the heterogeneous light high strength of spectrum, short time pulse are projected on the upper surface that is positioned at 2310 places, photoconduction 2300 upper ends.Light pulse is passed this upper surface and is entered photoconduction 2300.The light that enters interlayer 2306 passes described photoconduction and throws downwards.This light penetrates from photoconduction 2300, and projects on the bottom of packing cup 2302.The light that enters each side layer 2304,2308 is by photoconduction 2300 guiding downwards substantially, but be positioned near the lower end 2312 of photoconduction light by side layer 2304 towards the direction of leaving interlayer 2306 and towards the direction guiding of the inner surface 2314 of packing cup 2302.This light penetrates from side layer 2304,2308 subsequently, and is incident upon on the inner surface 2314 of packing cup 2302.

In the process that the straight pipe type flash light glistens in succession, with making described photoconduction upper and lower moving in packing cup 2302, and in this flash of light process in succession with making 2300 rotations of packing cup 2302 or photoconduction, can handle the total inner surface 2314 of packing cup 2302 with the heterogeneous light high strength of wide spectrum, short time pulse, and not need to use the U-shaped lamp.

Advantageously, with adopting the straight pipe type flash light to replace the U-shaped lamp that the packing cup is handled, therefore this modification can overcome the problem that adopts the U-shaped lamp to be brought, and, use the straight pipe type flash light, required in the time of can avoiding adopting the U-shaped lamp is high cost than straight pipe type flash light.

Now see also Figure 24, it is the top perspective view of another modification of the described embodiment of the photoconduction 2400 that can use with the straight pipe type flash light in Fig. 3 and the aseptic packaging assembly shown in Figure 4 2402.There is shown: the quartz rod 2406 of straight pipe type flash light 2402, a packing cup 2404 and a plurality of bendings, the upper end 2408 of each quartz rod are all located along the part of straight pipe type flash light 2402.Preferably, the parasite (not shown) light that will emit from the top (direction as shown in figure 24) of flash light 2402 focuses on downwards in the upper end 2408 of crooked quartz rod 2406.

During work, the light that emits from straight pipe type flash light 2402 is received in the upper end 2408 of crooked quartz rod 2406, and is carried downwards substantially by the quartz rod of described bending.

Now see also Figure 25, it is the face upwarding stereogram described modification, that partial cutaway is removed of the described embodiment of photoconduction 2500 shown in Figure 24.There is shown the lower end 2504 of the cutaway view and the crooked quartz rod 2506 of packing cup 2502.As we can see from the figure, the lower end 2504 of Wan Qu quartz rod 2560 is oriented to such an extent that light 2504 can be guided substantially downwards.Each lower end 2504 is outwardly-bent towards the medial surface of packing cup 2502, and is oriented to the displacement that approximate 60 degree are arranged between each bandy lower end 2504.

During work, be directed downwardly in the packing cup 2502, until its arrives till the lower end 2504 of crooked quartz rod 2506 from the straight pipe type flash light and by the light that the quartz rod 2506 of bending carries.At 2504 places, lower end of the quartz rod 2506 of bending, light is by outwards towards the medial surface guiding of packing cup 2502.Advantageously, with making each lower end do 60 skews of spending angles, can make the light scattering of being carried in the quartz rod 2506 of bending farthest spread all over the whole inner peripheral of packing cup 2502 with respect to contiguous lower end 2504.

When operation, in the irradiation process of wide spectrum polychromatic light high strength, short time pulse one after the other, photoconduction 2506 is upper and lower moving in packing cup 2502, thereby can make the whole medial surface of packing cup 2502 and the effect that the bottom surface all is subjected to this light.

In this way, provide a kind of like this embodiment, wherein, the inside face of packing cup 2502 can be subjected to the effect of the heterogeneous light high strength of wide spectrum, short time pulse, and does not need to use traditional U-shaped lamp.

Though below with several specific embodiments of the present invention and its application the present invention has been made specific descriptions; but; those skilled persons for the present technique field; can also make all modifications and variations that do not deviate from protection domain of the present invention to the present invention; therefore, protection scope of the present invention should be limited by appending claims.

Claims (42)

1. device that is used for making bacteria inactivation rate, it comprises:

One flash light;

One with described flash light bonded assembly power supply;

The device that packing are moved, it is used for making packing to move with respect to described flash light, so that the part packing are subjected to the heterogeneous light high strength of wide spectrum that emits from described flash light, the effect of short time pulse;

One is used for intensity to the heterogeneous light high strength of wide spectrum, short time pulse detects and produces a photodiode that can reflect the output signal of detected intensity:

One differential circuit that links to each other with described photodiode is used for measuring the difference (described set point signal is corresponding to the light intensity of a set point) between a described output signal and the set point signal, and produces a differential wave that can reflect difference after measured; And

One control circuit, it links to each other with described differential circuit, is used for to controlling for by described power supply feed the power level of described flash light, and can indicates detected intensity to fall to set point intensity in described differential wave to increase described power level when following.

2. device as claimed in claim 1 is characterized in that it also comprises:

One conductor fiber, be used at least a portion of the heterogeneous light high strength of wide spectrum, short time pulse is directed to from first end of described conductor fiber second end of described conductor fiber, described first end is positioned to such an extent that can receive the heterogeneous light high strength of wide spectrum, short time pulse, and described second end is positioned to such an extent that the heterogeneous light high strength of wide spectrum, short time pulse can be directed to described photodiode.

3. device as claimed in claim 1 is characterized in that, described control circuit comprises be used for making the out-of-work device of described device when output signal indicates detected intensity to fall under the threshold intensity.

4. device as claimed in claim 3 is characterized in that it also comprises:

One outer protect glass around described flash light, the heterogeneous light high strength of wide spectrum, short time pulse can be passed described outer protect glass and be guided; And

One cutting groove in the protect glass outside described, be used for a part of pulse of the heterogeneous light high strength of the wide spectrum that reflects from packing, short time pulse is guided, make them pass described outer protect glass and arrive second end of described conductor fiber.

5. device that is used for making bacteria inactivation rate is characterized in that it comprises:

One flash light;

One with described flash light bonded assembly power supply;

The device that packing are moved, it is used for making packing to move with respect to described flash light, is subjected to the heterogeneous light high strength of wide spectrum that emits from described flash light, the effect of short time pulse to make the part packing successively;

One is used for intensity to the heterogeneous light high strength of wide spectrum, short time pulse detects and produces a photodiode that can reflect the output signal of detected intensity;

One comparator circuit that links to each other with described photodiode, be used for measuring the difference (described threshold value is corresponding to a threshold light intensity) between a described output signal and the threshold signal, and produce one and can indicate detected intensity whether to fall to breakdown signal under the described threshold value; And

One control circuit, it links to each other with described comparator circuit, is used for described power supply is controlled, and can stops the work of described device when described breakdown signal indicates detected intensity to fall to described threshold intensity.

6. device as claimed in claim 5 is characterized in that it also comprises:

One conductor fiber, be used at least a portion of the heterogeneous light high strength of wide spectrum, short time pulse is directed to from first end of described conductor fiber second end of described conductor fiber, described first end is positioned to such an extent that can receive the heterogeneous light high strength of wide spectrum, short time pulse, and described second end is positioned to such an extent that the heterogeneous light high strength of wide spectrum, short time pulse can be directed to described photodiode.

7. device as claimed in claim 5, it is characterized in that, described control circuit comprises and being used for to controlling for by described power supply feed the power level of described flash light, and can indicate detected intensity to fall to threshold intensity at described output signal to increase described power level when following.

8. device as claimed in claim 7 is characterized in that it also comprises:

One outer protect glass around described flash light, the heterogeneous light high strength of wide spectrum, short time pulse can be passed described outer protect glass and be guided; And

One cutting groove in the protect glass outside described, be used for a part of pulse of the heterogeneous light high strength of the wide spectrum that reflects from packing, short time pulse is guided, make them pass described outer protect glass and arrive second end of described conductor fiber.

9. device that is used for making bacteria inactivation rate is characterized in that it comprises:

One flash light;

The device that packing are moved, it is used for making packing to move with respect to described flash light, so that the part packing are subjected to the heterogeneous light high strength of wide spectrum that emits from described flash light, the effect of short time pulse successively;

One water jacket around described flash light; And

One is coated on the outer top coat of first, second end of described water jacket.

10. device as claimed in claim 9 is characterized in that, described outer top coat comprises that one contains the coating of polytetrafluoroethylene.

11. device as claimed in claim 9 is characterized in that, described outer top coat comprises a platiniferous coating.

12. device as claimed in claim 11 is characterized in that, it also comprises:

Cover another outer top coat of described platiniferous coating at least in part.

13. device as claimed in claim 12 is characterized in that, described another outer top coat comprises that one contains the coating of polytetrafluoroethylene.

14. device as claimed in claim 9 is characterized in that, it also comprises:

One outer protect glass around described water jacket and described flash light; And

Be coated on another outer top coat of first, second end of described outer protect glass.

15. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One first flash light;

One second flash light;

One charging delivery pipe, it comprise one with the juxtaposed first of described first flash light and one and the juxtaposed second portion of described second flash light, when described packaging material tube described first of process and juxtaposed with it first flash light, described first is positioned to such an extent that can occupy first side of a packaging material tube, described first flash light is positioned to such an extent that can occupy second side of described packaging material tube, when described packaging material tube during through described second portion and juxtaposed with it described second flash light, described second portion is positioned to such an extent that occupy second side of described packaging material tube, and described second portion is positioned to such an extent that occupy described first side, and described second flash light is positioned to such an extent that occupy described second side.

16. device as claimed in claim 15 is characterized in that, described first flash light is an xenon flash lamp.

17. device as claimed in claim 15 is characterized in that, described packaging material tube is one to comprise the lamination of at least one polyethylene layer.

18. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One first straight pipe type flash light;

One seals first water jacket of the described first straight pipe type flash light;

One is formed on first cooling water pipeline between the inside of outside and described first water jacket of described first flash light;

One second straight pipe type flash light;

One seals second water jacket of the described second straight pipe type flash light;

One is formed on second cooling water pipeline between the inside of outside and described first water jacket of the described second straight pipe type flash light;

Put the charging delivery pipe between described first water jacket and described second water jacket in the lump;

One seals the filtrated air delivery pipe of described charging delivery pipe;

One is formed on the filtrated air pipeline between the inside of an outside and described filtrated air delivery pipe of described charging delivery pipe;

One seals the parasite of described filtrated air delivery pipe; And

One seals the outer protect glass of described first water jacket, second water jacket and described parasite.

19. device as claimed in claim 18 is characterized in that, also comprises the reflex-reflective material of sealing described outer protect glass.

20. device as claimed in claim 19 is characterized in that, described reflex-reflective material comprises packing.

21. device as claimed in claim 18 is characterized in that, it also comprises:

One is formed on an outside, second water jacket and the described parasite of described first water jacket, and the water reflux line between the inside of described outer protect glass.

22. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One first straight pipe type flash light;

One second straight pipe type flash light;

One is located at the charging delivery pipe between the described first straight pipe type flash light and the second straight pipe type flash light;

One seals the filtrated air delivery pipe of described charging delivery pipe;

One is formed on the filtrated air pipeline between the inside of an outside and described filtrated air delivery pipe of described charging delivery pipe; And

One seals the outer protect glass of described first flash light, described second flash light and described filtrated air delivery pipe.

23. device as claimed in claim 22 is characterized in that, it also comprises:

One is coated on the coating through reflective processing on the outside face of described filtrated air delivery pipe; And

One is formed on an outside of the described second straight pipe type flash light, the described first straight pipe type flash light and described filtrated air delivery pipe, and the cooling water pipeline between the inside of described outer protect glass.

24. device as claimed in claim 23 is characterized in that, it also comprises:

One seals the reflex-reflective material of described outer protect glass.

25. device as claimed in claim 24 is characterized in that, described reflex-reflective material comprises packing.

26. device as claimed in claim 23 is characterized in that, it also comprises:

One is coated on the first outer top coat of first end of described first water jacket, and second an outer top coat that is coated on second end of described first water jacket.

27. device as claimed in claim 26 is characterized in that, the described first outer top coat and the described second outer top coat comprise the platiniferous coating.

28. device as claimed in claim 26 is characterized in that, the described first outer top coat and the described second outer top coat comprise the coating that contains polytetrafluoroethylene.

29. device as claimed in claim 26 is characterized in that, it also comprises:

One is coated on the 3rd outer top coat on the first outer top coat of described first end of described first water jacket, and one is coated in the top coat all round of on the described second outer top coat of second end of described first water jacket.

30. device as claimed in claim 29 is characterized in that, the described first outer top coat and the described second outer top coat comprise the platiniferous coating, and the described the 3rd outer top coat and top coat all round comprises the coating that contains polytetrafluoroethylene.

31. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One flash light; And

One first holding element, it comprises one first lamp holding device, the described first lamp holding device comprises:

One keeps cylinder, it comprises that one has first flange of first frusta-conical surface, first end of described flash light is positioned in the described maintenance cylinder, and described first flange of extend past, and the angle between the outside of described first truncated cone shape flange and described flash light is less than 90 degree;

Be resisted against the O shape circle on the described frusta-conical surface with putting in the lump; And

One first compressor cylinder, be used for one first application force is put on the described O shape circle, thereby described O shape circle can be pressed on described first frusta-conical surface, wherein said frusta-conical surface and described first application force are together, can make described O shape circle compress described flash light, thereby can enclose and described first frusta-conical surface a described O shape, and form fluid-tight sealing between described O shape circle and the described flash light.

32. device as claimed in claim 31 is characterized in that, it also comprises:

One comprises second holding element of one second lamp holding device, and the described second lamp holding device comprises:

One keeps cylinder, it comprises that one has second flange of second frusta-conical surface, second end of described flash light is positioned in the described maintenance cylinder, and described second flange of extend past, and the angle between the outside of described second truncated cone shape flange and described flash light is less than 90 degree;

Be resisted against the 2nd O shape circle on the described frusta-conical surface with putting in the lump; And

One second compressor cylinder, be used for one second application force is put on described the 2nd O shape circle, thereby described the 2nd O shape circle can be pressed on described second frusta-conical surface, wherein said frusta-conical surface and described second application force are together, can make described the 2nd O shape circle compress described flash light, thereby can enclose and described second frusta-conical surface described the 2nd O shape, and form fluid-tight sealing between described the 2nd O shape circle and the described flash light.

33. device as claimed in claim 32 is characterized in that, it also comprises:

One with the juxtaposed charging delivery pipe of described flash light;

One seals the filtrated air delivery pipe of described charging delivery pipe; And

One seals the outer protect glass of described flash light and described filtrated air delivery pipe.

34. device as claimed in claim 33 is characterized in that, it also comprises:

One is formed on the filtrated air pipeline between the inside of an outside and described filtrated air delivery pipe of described charging delivery pipe.

35. device as claimed in claim 31 is characterized in that, it also comprises:

One is positioned at first group of screw thread on the outside face of described first compressor cylinder; And

One is positioned at second group of screw thread on the inside face of described compressor cylinder, like this, when described compressor cylinder being inserted in the described maintenance cylinder, can be screwed with described first group of screw thread.

36. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One comprises the U-shaped lamp of one first electrode and one second electrode;

Be used for described U-shaped lamp is navigated to device in the packing cup; And

One holding device, it comprises:

One is used for holding first socket of described first electrode;

One is used for holding second socket of described second electrode;

One is arranged on the lamp holding device in described second socket, described lamp holding device is cylindrical basically, have one away from the distal part of described U-shaped lamp and have near a nearly portion that is positioned at the described U-shaped lamp, described lamp holding device can move in described second socket, thereby described nearly portion is moved with respect to described distal part;

One an outside place, the O shape circle between described lamp holding device and described second socket at described distal part; And

One an inner place, the 2nd O shape circle between described lamp holding device and described U-shaped lamp in described nearly portion.

37. device as claimed in claim 36 is characterized in that, it also comprises:

One is positioned at first groove on the described outside face of described distal part, and described O shape circle is positioned at described first groove; And

One is positioned at second groove on the described inside face of described nearly portion, and described the 2nd O shape circle is positioned at described second groove.

38. a device that is used for making bacteria inactivation rate is characterized in that it comprises:

One straight pipe type flash light;

One photoconduction, it is positioned to such an extent that can receive the light that emits from described straight pipe type flash light;

Be used for described photoconduction is positioned at device in the packing cup.

39. device as claimed in claim 38 is characterized in that, described photoconduction comprises:

The quartz rod of a plurality of bendings.

40. device as claimed in claim 38 is characterized in that, the quartz rod of described a plurality of bendings comprises:

The quartz rod of at least six bendings, they comprise the lower end, described each lower end is relative to each other outwardly-bent, thereby the photoconduction that quartz rod carried by described bending can be caused on the medial surface of described packing cup.

41. device as claimed in claim 40 is characterized in that, described all lower ends have the angular variation of approximate 60 degree each other.

42. device as claimed in claim 41 is characterized in that, described photoconduction comprises:

One is used for the interlayer of light towards the inner bottom surface guiding of described packing cup; And

At least two side layers, their lower end are used for the direction guiding of light towards a medial surface that leaves described packing cup towards the direction bending of leaving described interlayer.

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