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SE509920C2 - Method and apparatus for continuous cooling of a pumpable emulsion or suspension - Google Patents

Method and apparatus for continuous cooling of a pumpable emulsion or suspension

Info

Publication number
SE509920C2
SE509920C2 SE9404499A SE9404499A SE509920C2 SE 509920 C2 SE509920 C2 SE 509920C2 SE 9404499 A SE9404499 A SE 9404499A SE 9404499 A SE9404499 A SE 9404499A SE 509920 C2 SE509920 C2 SE 509920C2
Authority
SE
Sweden
Prior art keywords
gas
emulsion
suspension
separation chamber
condensed
Prior art date
Application number
SE9404499A
Other languages
Swedish (sv)
Other versions
SE9404499D0 (en
SE9404499L (en
Inventor
Bjoern Sivik
Original Assignee
Bjoern Sivik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bjoern Sivik filed Critical Bjoern Sivik
Priority to SE9404499A priority Critical patent/SE509920C2/en
Publication of SE9404499D0 publication Critical patent/SE9404499D0/en
Priority to PCT/SE1995/001556 priority patent/WO1996019922A1/en
Priority to AU43601/96A priority patent/AU4360196A/en
Publication of SE9404499L publication Critical patent/SE9404499L/en
Publication of SE509920C2 publication Critical patent/SE509920C2/en

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Classifications

    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23DEDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS OR COOKING OILS
    • A23D7/00Edible oil or fat compositions containing an aqueous phase, e.g. margarines
    • A23D7/02Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by the production or working-up
    • A23D7/04Working-up
    • A23D7/05Working-up characterised by essential cooling
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00Preservation of foods or foodstuffs, in general
    • A23B2/80Freezing; Subsequent thawing; Cooling
    • A23B2/803Materials being transported through or in the apparatus, with or without shaping, e.g. in the form of powders, granules or flakes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00Preservation of foods or foodstuffs, in general
    • A23B2/80Freezing; Subsequent thawing; Cooling
    • A23B2/85Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
    • A23B2/88Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid N2 at cryogenic temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00Other direct-contact heat-exchange apparatus
    • F28C3/06Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
    • F28C3/08Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00Gas cycle refrigeration machines
    • F25B2309/06Compression machines, plants or systems characterised by the refrigerant being carbon dioxide

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Cooling of a pumpable liquid with or without particles is obtained in that a flow of a condensed gas is supplied to a flow of said liquid during such conditions that the condensed gas is evaporated. The evaporation heat is taken from said liquid which owing to that is cooled momentary. The cooling is carried through in an arrangement comprising an inlet for condensed gas and an inlet for a pumpable liquid with or without particles which both inlets lead to a zone with a limited volume in order to cause momentary contact between condensed gas and said liquid.

Description

509 920 10 15 20 25 30 35 Med fördel komprimeras och kondenseras den avskilda gasen för förnyad användning som kylmedium. 509 920 10 15 20 25 30 35 Advantageously, the separated gas is compressed and condensed for reuse as a cooling medium.

Sättet enligt uppfinningen lämpar sig i synnerhet väl om emulsionen eller suspensionen användes för framställning av ett livsmedel varvid den använda gasen är livsmedels- godkänd. Som sådan gas utnyttjas företrädesvis koldioxid.The method according to the invention is particularly suitable if the emulsion or suspension is used for the preparation of a foodstuff in which the gas used is food-grade. As such gas, carbon dioxide is preferably used.

Särskilt fördelaktigt blir detta om emulsionen eller suspensionen är en svårkyld viskös massa.This will be particularly advantageous if the emulsion or suspension is a viscous mass which is difficult to cool.

Sättet enligt uppfinningen lämpar sig synnerligen väl då suspensionen utgöres av en fettemulsion avsedd för fram- ställning av ett bredbart matfett. Även då den nämnda suspensionen utgöres av en livsmedels- blandning innehållande partikulärt material erhålles avsevärda fördelar. Som exempel på sådana blandningar kan nämnas frukt- eller grönsaksblandningar i egen juice eller saft, såsom t.ex. tomattärningar i juice. Blandningen kan också bestå av kött eller fiskbitar i sås.The method according to the invention is particularly well suited when the suspension consists of a fat emulsion intended for the production of a spreadable edible fat. Even when the said suspension consists of a food mixture containing particulate matter, considerable advantages are obtained. Examples of such mixtures are fruit or vegetable mixtures in own juice or juice, such as e.g. tomato cubes in juice. The mixture can also consist of meat or fish pieces in sauce.

En anordning för genomförande av sättet vid kontinuerlig kylning enligt uppfinningen omfattar huvudsakligen ett inlopp för kondenserad gas och ett inlopp för pumpbar emulsion eller suspension, vilka inlopp både mynnar i en zon med begränsad volym för att skapa momentan kontakt mellan kondenserad gas och emulsionen eller suspensionen.A device for carrying out the method of continuous cooling according to the invention essentially comprises an inlet for condensed gas and an inlet for pumpable emulsion or suspension, which inlets both open into a zone with limited volume to create instantaneous contact between condensed gas and the emulsion or suspension.

Med fördel finns nämnda zon anordnad i en förångningsventil eller i en förångningskammare ansluten till en separations- kammare.Advantageously, said zone is arranged in an evaporation valve or in an evaporation chamber connected to a separation chamber.

Nämnda separationskammare står via en ledning i förbindelse med en kompressor för komprimering av gasen. lO 15 20 25 30 35 509 92of Enligt uppfinningen är nämnda separationskammare lämpligen förbunden med ytterligare en separationskammare vilken ytterligare kammare har ett utlopp som står i förbindelse med en andra kompressor.Said separation chamber is connected via a line to a compressor for compressing the gas. According to the invention, said separation chamber is suitably connected to a further separation chamber, which further chamber has an outlet which communicates with a second compressor.

Med fördel står åtminstone en av kompressorerna via en ledning i förbindelse med en kondensor vilken i sin tur via en ytterligare ledning står i förbindelse med en förråds- tank för kondenserad gas från vilken tank den kondenserade gasen recirkuleras för förnyad föràngning.Advantageously, at least one of the compressors is connected via a line to a condenser which in turn is connected via an additional line to a storage tank for liquefied gas from which tank the liquefied gas is recirculated for re-evaporation.

Vid sättet enligt uppfinningen bringas alltså en konden- serad gas att förångas i en pumpbar massa bestående av en suspension eller emulsion. Genom att den kondenserade gasen så gott som omedelbart förångas erhålles en mycket snabb kylning av den pumpbara massan. Vilken gas som skall väljas beror naturligtvis av den avsedda applikationen och dess kylbehov samt de konstnader kylsteget kan bära. Skall en mera exklusiv produkt snabbt kylas från t.ex. en viss behandlings- eller blandningstemperatur vid eller strax över rumstemperatur kan eten, freoner eller C02 komma ifråga. Skall kylningen ske vid högre temperaturer väljes en annan gas, såsom propan, etan eller N43, som kondenserar vid en högre temperatur.In the method according to the invention, a condensed gas is thus caused to evaporate in a pumpable mass consisting of a suspension or emulsion. By evaporating the condensed gas almost immediately, a very rapid cooling of the pumpable mass is obtained. Which gas is to be chosen depends, of course, on the intended application and its cooling needs, as well as the costs that the cooling stage can carry. Should a more exclusive product be quickly cooled from e.g. a certain treatment or mixing temperature at or just above room temperature, ethylene, freons or CO 2 may be considered. If the cooling is to take place at higher temperatures, another gas is chosen, such as propane, ethane or N43, which condenses at a higher temperature.

Skall den pumpbara emulsionen eller suspensionen utnyttjas för framställning av en livsmedelsprodukt måste gasen vara livsmedelsgodkänd. Som sådan är koldioxid att föredra även om det i sig är möjligt att arbeta exempelvis med kväve om så skulle anses önskvärt. Koldioxid kondenserar vid olika temperatur beroende på trycket. Således är kondensations- temperaturen -30°C vid 14 bar, ~ 0°C vid 35 bar och 25°C vid 60 bar. Att arbeta med högre tryck än 40 bar fördyrar vanligen processen i onödigt hög grad. 509 920 10 15 20 25 30 35 |_'> För att kontakten mellan den kondenserade gasen och den massa (emulsion eller suspension) som skall kylas skall bli så intensiv som möjligt, tillföres både kondenserad gas och massa till en zon med begränsad volym t.ex. så att konden- serad gas tillföres till massan genom ett inlopp som mynnar direkt in i en ström av nämnda massa. Omedelbart efter sammanblandningen förångas den kondenserade gasen med medföljande volymökning och den nämnda zonen måste alltså stå i förbindelse med ett utrymme med större volym.If the pumpable emulsion or suspension is to be used for the preparation of a food product, the gas must be food approved. As such, carbon dioxide is preferable even if it is in itself possible to work with nitrogen, for example, if this would be considered desirable. Carbon dioxide condenses at different temperatures depending on the pressure. Thus the condensation temperature is -30 ° C at 14 bar, ~ 0 ° C at 35 bar and 25 ° C at 60 bar. Working with a pressure higher than 40 bar usually makes the process unnecessarily expensive. 509 920 10 15 20 25 30 35 | _ '> In order to make the contact between the liquefied gas and the pulp (emulsion or suspension) to be cooled as intense as possible, both liquefied gas and pulp are supplied to a zone with a limited volume t .ex. so that condensed gas is supplied to the pulp through an inlet which opens directly into a stream of said pulp. Immediately after mixing, the condensed gas evaporates with the accompanying volume increase and the said zone must therefore be connected to a space with a larger volume.

Temperaturen hos massan sänks omedelbart. Till följd av trycksänkningen och expansionen utsätts massan under detta snabba förlopp också för en mekanisk bearbetning till följd av de höga skjuvkrafter som utvecklas. I separations- kammaren sker en trycksänkning och en del av gasen avskiljs.The temperature of the pulp is lowered immediately. As a result of the pressure drop and the expansion, the mass is also subjected to a mechanical processing during this rapid process due to the high shear forces that develop. In the separation chamber, the pressure drops and a part of the gas is separated.

Uppfinningen beskrivs närmare med hänvisning till bifogade ritning som schematiskt visar en som exempel vald utföringsform av en anläggning för kylning av fettemulsion.The invention is described in more detail with reference to the accompanying drawing which schematically shows an exemplary embodiment of a plant for cooling fat emulsion.

En ström av fettemulsion med en temperatur av 35°C leds via en ledning l till en förångningskammare 2. Till denna leds också ett flöde av kondenserad gas via en andra ledning 3.A stream of fat emulsion with a temperature of 35 ° C is led via a line 1 to an evaporating chamber 2. To this is also led a flow of condensed gas via a second line 3.

Den kondenserade gasen, som består av C02 har ett tryck av 40 bar. När den kondenserade gasen kommer in i förångnings- kammaren och sammanförs med fettemulsionen förångas den ögonblickligen med samtidig avkylning av fettemulsionen.The liquefied gas, which consists of CO2, has a pressure of 40 bar. When the condensed gas enters the evaporation chamber and is combined with the fat emulsion, it evaporates instantly with simultaneous cooling of the fat emulsion.

Bildad gas och emulsion leds vidare till en separations- kammare 4 där en trycksänkning sker. Den största delen av den frigjorda C02-gasen avleds via en ledning 5 under ett tryck av 30 bar. Blandningen av fettemulsion och resterande gas bringas av tyngdkraften och trycket i kammaren 4 att passera ett organ 6 som endast medger flöde i en riktning in i en andra kammare 7. I denna andra kammare 7 sker ännu en trycksänkning så att frigjord koldioxidgas lämnar 10 15 20 25 30 UI kammaren med ett tryck av 5 bar genom en ledning 8. Fett- emulsionen bringas att passera ännu ett organ 9 innan den med en temperatur av ca l0°C leds in till en bearbetnings- enhet 10 t.ex. en pinnrotor inför efterföljande paketering.Formed gas and emulsion are passed on to a separation chamber 4 where a pressure drop takes place. Most of the released CO2 gas is diverted via a line 5 under a pressure of 30 bar. The mixture of fat emulsion and residual gas is caused by gravity and the pressure in the chamber 4 to pass a means 6 which only allows flow in one direction into a second chamber 7. In this second chamber 7 another pressure drop takes place so that released carbon dioxide gas leaves In the chamber with a pressure of 5 bar through a line 8. The fat emulsion is passed through another member 9 before it is led at a temperature of about 10 ° C into a processing unit 10 e.g. a pin rotor prior to subsequent packaging.

Organen 6 och 9 kan bestå av pumpar eller ventiler som fungerar som slussorgan som avskiljer separationskamrarna sinsemellan och från den efterföljande bearbetningsenheten.The means 6 and 9 may consist of pumps or valves which act as locking means which separate the separation chambers from each other and from the subsequent processing unit.

Koldioxidgas kan också avledas från bearbetningsenheten 10.Carbon dioxide gas can also be diverted from the processing unit 10.

Koldioxidgasen i ledningen 5 med 30 bars tryck leds till en kompressor ll där trycket höjs till 40 bar. Från denna föres den gasformiga koldioxiden genom en ledning 12, 13 till en kondensor 14. Till kondensorn leds också den komprimerade gasformiga koldioxiden från ledningen 8. Denna gas har komprimerats i en kompressor 15. I kondensorn sänks temperaturen till under 4°C, vilket leder till att gasen kondenseras. Från kondensorn ledes den kondenserade kol- dioxiden till ett förrådskärl 16, som fungerar som balans- kärl. Den mängd koldioxid som krävs för kylningen uttages fràn förràdskärlet 16 och passerar en pump 17 som doserar den kondenserade gasen vid ett tryck av exempelvis 40 bar.The carbon dioxide gas in line 5 at 30 bar pressure is led to a compressor II where the pressure is raised to 40 bar. From this the gaseous carbon dioxide is passed through a line 12, 13 to a condenser 14. To the condenser the compressed gaseous carbon dioxide is also led from the line 8. This gas has been compressed in a compressor 15. In the condenser the temperature is lowered to below 4 ° C, which leads to the gas condensing. From the condenser, the condensed carbon dioxide is led to a storage vessel 16, which functions as a balance vessel. The amount of carbon dioxide required for cooling is taken from the storage vessel 16 and passes through a pump 17 which dispenses the condensed gas at a pressure of, for example, 40 bar.

Den kondenserade gasen blandas med ny fettemulsion, för- ángas ányo och avgàr delvis genom ledningen 5.The condensed gas is mixed with a new fat emulsion, evaporated and partly discharged through line 5.

Kylningen av fettemulsionen sker alltså kontinuerligt och koldioxiden ändrar cykliskt aggregationstillstànd.The cooling of the fat emulsion thus takes place continuously and the carbon dioxide changes the cyclic state of aggregation.

I den visade utföringsformen utnyttjas tvâ kamrar där huvuddelen av den frigjorda koldioxidgasen avleds fràn den första kammaren, separationskammaren. Om så anses önskvärt kan enbart en gemensam kammare med ett gasutlopp utnyttjas.In the embodiment shown, two chambers are used where the main part of the released carbon dioxide gas is diverted from the first chamber, the separation chamber. If considered desirable, only a common chamber with a gas outlet can be used.

Om enbart ett gasutlopp används är C02-gasens tryck lågt vilket underlättar avgasningen av fettemulsionen men processen blir mera dyrbar. 509 920 10 15 20 25 30 6 I det nu visade utföringsexemplet har kondenserad koldioxid med ett tryck av 40 bar använts för kylningen.If only one gas outlet is used, the pressure of the CO2 gas is low, which facilitates the degassing of the fat emulsion, but the process becomes more expensive. 509 920 10 15 20 25 30 6 In the embodiment now shown, condensed carbon dioxide with a pressure of 40 bar has been used for the cooling.

De värden på gastrycket som anges på ritningen utgör endast ett exempel på en för uppfinningen lämplig trycknivà. Många andra alternativ är tänkbara också vid tryck över 40 bar där olika kombinationer av tryck och temperatur hos den kondenserade gasen med värden över 40 bar/4°C kan utnyttjas.The values of the gas pressure given in the drawing are only an example of a pressure level suitable for the invention. Many other alternatives are also conceivable at pressures above 40 bar where different combinations of pressure and temperature of the condensed gas with values above 40 bar / 4 ° C can be used.

Komprimeras den avskilda koldioxiden till ett högre tryck erfordras mindre kylande yta i kondensorn än om trycket är lägre.If the separated carbon dioxide is compressed to a higher pressure, less cooling surface in the condenser is required than if the pressure is lower.

En anläggning av det beskrivna slaget uppvisar stora för- delar gentemot tidigare känd teknik där skrapvärmeväxlare ombesörjt kylningen. Skulle något problem uppstå vid paketeringen avbryts tillförseln av fettemulsion och kondenserad koldioxid till förångningskammaren. När problemet lösts, ofta bara någon minut senare, startar tillförseln på nytt och kylprocessen fortsätter. Mot- svarande avbrott i en anläggning med skrapvärmeväxlare kan leda till att driften stoppar totalt. Först efter rengöring kan àterstart vara möjlig.A plant of the type described has great advantages over previously known technology where scraper heat exchangers take care of the cooling. Should any problem arise during packaging, the supply of fat emulsion and condensed carbon dioxide to the evaporation chamber is interrupted. When the problem is solved, often just a few minutes later, the supply starts again and the cooling process continues. Corresponding interruptions in a system with scraper heat exchangers can lead to the operation stopping completely. Only after cleaning can restart be possible.

Inom ramen för uppfinningen är det möjligt att utnyttja såväl andra livsmedelsgodkända gaser, om den pumpbara massan (emulsionen eller suspensionen) utgörs av en livsmedelsprodukt eller skall vidarebehandlas till en sådan, som andra slags gaser med lämpliga kondensations- temperaturer för andra typer av massor.Within the scope of the invention, it is possible to use other food-approved gases, if the pumpable mass (the emulsion or suspension) consists of a food product or is to be further processed into such, as other types of gases with suitable condensation temperatures for other types of masses.

Claims (13)

10 15 20 25 30 509 920 w Patentkrav10 15 20 25 30 509 920 w Patent claim 1. Sätt vid kontinuerlig kylning av en pumpbar emulsion eller suspension, k ä n n e t e c k n a t a v att ett flöde av en kondenserad gas tillföres ett flöde av nämnda emulsion eller suspension under sàdana förhållanden att den kondenserade gasen föràngas, varvid ångbildningsvärmen tas fràn emulsionen eller suspensionen som därigenom avkyles momentant.A method of continuous cooling of a pumpable emulsion or suspension, characterized in that a flow of a condensed gas is supplied to a flow of said emulsion or suspension under such conditions that the condensed gas is evaporated, the heat of vapor formation being taken from the emulsion or suspension thereby cooled. moment. 2. Sätt enligt krav 1, k ä n n e t e c k n a t a v att den vid förángningen bildade gasen avskiljs fràn emulsionen eller suspensionen i en separationskammare.2. A method according to claim 1, characterized in that the gas formed during the evaporation is separated from the emulsion or suspension in a separation chamber. 3. Sätt enligt krav 1-2, k ä n n e t e c k n a t a v att emulsionen eller suspensionen och resterande gas ledes till en andra separationskammare där resterande gas avskiljs och avleds från emulsionen eller suspensionen.3. A method according to claims 1-2, characterized in that the emulsion or suspension and residual gas are led to a second separation chamber where residual gas is separated and diverted from the emulsion or suspension. 4. Sätt enligt krav 3, k ä n n e t e c k n a t a v att den avskilda gasen komprimeras och kondenseras för förnyad användning som kylmedium.4. A method according to claim 3, characterized in that the separated gas is compressed and condensed for reuse as a cooling medium. 5. Sätt enligt något av föregående krav, k ä n n e - t e c k n a t a v att emulsionen eller suspensionen användes för framställning av ett livsmedel och att den använda gasen är livsmedelsgodkänd.5. A method according to any one of the preceding claims, characterized in that the emulsion or suspension is used for the preparation of a food and that the gas used is food approved. 6. Sätt enligt krav 5, k ä n n e t e c k n a t a v att gasen utgöres av koldioxid.6. A method according to claim 5, characterized in that the gas is carbon dioxide. 7. Sätt enligt krav l-6, k ä n n e t e c k n a t a v att den nämnda emulsionen utgöres av en fettemulsion avsedd för framställning av ett bredbart matfett. 509 920 10 15 20 25 30 357. A method according to claims 1-6, characterized in that said emulsion is constituted by a fat emulsion intended for the production of a spreadable edible fat. 509 920 10 15 20 25 30 35 8. Sätt enligt krav 1-6, k ä n n e t e c k n a t a v att nämnda suspension utgöres av en livsmedelsblandning innehållande partikulärt material.8. A method according to claims 1-6, characterized in that said suspension consists of a food mixture containing particulate matter. 9. Anordning för genomförande av sättet vid kontinuerlig kylning enligt krav 1, k ä n n e t e c k n a d a v att anordningen omfattar ett inlopp för kondenserad gas och ett inlopp för en pumpbar emulsion eller suspension, vilka inlopp båda mynnar i en zon med begränsad volym för att skapa momentan kontakt mellan kondenserad gas och emulsionen eller suspensionen.Device for carrying out the method of continuous cooling according to claim 1, characterized in that the device comprises an inlet for condensed gas and an inlet for a pumpable emulsion or suspension, both inlets opening into a zone with limited volume to create instantaneous contact. between liquefied gas and the emulsion or suspension. 10. Anordning enligt krav 9, k ä n n e t e c k n a d a v att nämnda zon finns anordnad i en föràngningsventil eller i en förångningskammare (2) ansluten till en separationskammare (4).Device according to claim 9, characterized in that said zone is arranged in an evaporation valve or in an evaporation chamber (2) connected to a separation chamber (4). 11. ll. Anordning enligt krav 9-10, k ä n n e t e c k n a d a v att separationskammaren (4) via en ledning står i förbindelse med en kompressor (ll) för komprimering av gasen.11. ll. Device according to claims 9-10, characterized in that the separation chamber (4) is connected via a line to a compressor (II) for compressing the gas. 12. Anordning enligt krav 9-ll, k ä n n e t e c k n a d a v att den nämnda separationskammaren (4) är förbunden med en ytterligare separationskammare (7), vilken ytter- ligare kammare också har ett utlopp för gas vilket står i förbindelse med en andra kompressor (15).Device according to claim 9-11, characterized in that said separation chamber (4) is connected to a further separation chamber (7), which further chamber also has an outlet for gas which is connected to a second compressor (15). ). 13. Anordning enligt krav ll eller 12, k ä n n e - t e c k n a d a v att åtminstone en av kompressorerna via en ledning står i förbindelse med en kondensor (14) vilken i sin tur via en ytterligare ledning står i för- bindelse med en förrådstank (16) för kondenserad gas från vilken tank den kondenserade gasen recirkuleras för förnyad förångning.Device according to Claim 11 or 12, characterized in that at least one of the compressors is connected via a line to a condenser (14) which in turn is connected via a further line to a storage tank (16). for liquefied gas from which tank the liquefied gas is recycled for re-evaporation.
SE9404499A 1994-12-23 1994-12-23 Method and apparatus for continuous cooling of a pumpable emulsion or suspension SE509920C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9404499A SE509920C2 (en) 1994-12-23 1994-12-23 Method and apparatus for continuous cooling of a pumpable emulsion or suspension
PCT/SE1995/001556 WO1996019922A1 (en) 1994-12-23 1995-12-21 Method and arrangement for cooling of a pumpable liquid with or without particles
AU43601/96A AU4360196A (en) 1994-12-23 1995-12-21 Method and arrangement for cooling of a pumpable liquid with or without particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9404499A SE509920C2 (en) 1994-12-23 1994-12-23 Method and apparatus for continuous cooling of a pumpable emulsion or suspension

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DE19748069A1 (en) * 1997-10-31 1999-05-06 Messer Griesheim Gmbh Method and device for cooling and atomizing liquid or pasty substances
NO311164B1 (en) * 1998-06-02 2001-10-22 Leiv Eiriksson Nyfotek As Process for freeze-drying of solutions
JP3934293B2 (en) 1999-11-05 2007-06-20 株式会社日本触媒 Acrylic acid production method and acrylic acid production apparatus
ITMI20032367A1 (en) * 2003-12-03 2005-06-04 Air Liquide Italia S P A METHOD AND PLANT FOR FLUID COOLING

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BE755789A (en) * 1969-09-11 1971-03-08 Dijk Nv A Van METHOD OF IMPROVING THE PROPERTIES OF FATS
SE390370C (en) * 1972-12-15 1986-06-23 Arla Ekonomisk Foerening METHOD OF PROCEDURE FOR PREPARING THE LOW CALORARY MARGARINE WITH HIGH PROTEIN, WHEREAS THE WATER PHASE IS PREPARED BY A PROTEIN CONCENTRATE RECOVERED FROM BACTERIAL WAY ACID NON-MILK AND WHERE THE PREPARED EMBODIMENTS
LU79411A1 (en) * 1978-04-11 1979-11-07 Laguilharre P PROCESS FOR COOLING A HOT CONCENTRATED MILK FROM AN EVAPORATOR, BY STAGE DETENTS
US4362758A (en) * 1980-09-30 1982-12-07 Lever Brothers Company Process for producing a low-calorie spread
SE465009B (en) * 1989-11-07 1991-07-15 Skaanemejerier Ek Foer FOOD PRODUCTS WITH LOW FAT CONTENT AND PROCEDURES FOR PREPARING THEREOF
AU7468291A (en) * 1990-11-13 1992-06-11 Portwall Pty Limited Lipid fractionation and products so obtained

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SE9404499D0 (en) 1994-12-23
SE9404499L (en) 1996-06-24
WO1996019922A1 (en) 1996-07-04

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