CN102814155A - Method for packaging NO/N2 mixtures with draining stages and prior rinsing with gas - Google Patents
Method for packaging NO/N2 mixtures with draining stages and prior rinsing with gas Download PDFInfo
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- CN102814155A CN102814155A CN2012101888868A CN201210188886A CN102814155A CN 102814155 A CN102814155 A CN 102814155A CN 2012101888868 A CN2012101888868 A CN 2012101888868A CN 201210188886 A CN201210188886 A CN 201210188886A CN 102814155 A CN102814155 A CN 102814155A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 238000004806 packaging method and process Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 31
- 239000011261 inert gas Substances 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 53
- 229910052757 nitrogen Inorganic materials 0.000 claims description 34
- 239000012530 fluid Substances 0.000 claims description 12
- 239000012080 ambient air Substances 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000008246 gaseous mixture Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000010926 purge Methods 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 210000000635 valve cell Anatomy 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000003570 air Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 208000004248 Familial Primary Pulmonary Hypertension Diseases 0.000 description 1
- 206010064911 Pulmonary arterial hypertension Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 201000008312 primary pulmonary hypertension Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/002—Automated filling apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0639—Steels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/014—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
- F17C2225/036—Very high pressure, i.e. above 80 bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0135—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0309—Heat exchange with the fluid by heating using another fluid
- F17C2227/0311—Air heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/04—Methods for emptying or filling
- F17C2227/044—Methods for emptying or filling by purging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/01—Purifying the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/02—Applications for medical applications
- F17C2270/025—Breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/05—Applications for industrial use
- F17C2270/059—Mass bottling, e.g. merry belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vacuum Packaging (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to a method for packaging a gaseous NO/N2 mixture into at least one container which is characterized in that, prior to admitting the said NO/N2 mixture, said at least one container is subjected to at least a purging step during which the internal volume of the container is placed in fluidic communication with the ambient atmosphere, an evacuating step during which the internal volume of the container is placed under depression, and a gas rinsing step during which an inert gas is admitted to said at least one container. For preference, the final gaseous NO/N2 mixture contains an NO content less than or equal to 1200 ppm by volume for a pressure of between P1 and 800 bar.
Description
Technical field
The present invention relates to a kind of being used for gaseous state NO/N
2Mixture is encapsulated in container---and the method in especially one or more cylinders, said method comprises various purification and gas rinsing steps in succession.
Background technology
Gaseous state NO/N
2The lung vessel retraction that mixture is generally used for treatment adult or children---especially infect the neonate of primary pulmonary hypertension or accepted the patient of openheart surgery---.
These NO/N
2Mixture is encapsulated in steel cylinder/gas cylinder usually.Usually, these cylinder/bottles hold from the NO of 100 to 1000ppm (volumes), and all the other are nitrogen (N
2).These cylinders have 2 to 50 liters water capacity usually, this means that these cylinders can hold total charging quantity and reach 15m
3NO/N
2Mixture.
The encapsulation of these mixtures in other words to these mixtures of cylinder filling, is accomplished at the gas filling center.
Yet if the NO content in the mixture is low, the order of magnitude that it typically is hundreds of ppm (volume) is not always to be easy to these mixtures of commercial scale encapsulation.Especially, gaseous state NO/N
2Mixture is responsive to the existence of oxygen type residual impurity, and said impurity is easy to when the cylinder filling, in cylinder, exist.
In fact, the most important thing is to guarantee that cylinder correctly removed all gaseous impurities that they are easy to comprise before being filled with, especially can react and form toxicity NO with NO
2Oxygen.
In other words, if the internal capacity of cylinder is not correctly purified and is cleaned, the NO/N that is then produced
2Mixture will fall short of specifications and will go out of use.
Therefore, problem is to provide a kind of improved method for packing, and this method for packing makes can eliminate impurity all or almost all---especially oxygen---, and said impurity is easy to receive NO/N
2Exist in one or more cylinders of type gaseous mixture.
Summary of the invention
Therefore, scheme of the present invention is a kind of being used for gaseous state NO/N
2Interior method that mixture is encapsulated at least one container---especially one or more cylinder---is characterized in that, is accepting said NO/N
2Before the mixture, said at least one container, said in other words one or more containers, experience following steps at least:
A) purify (purging cleans) step, during said purifying step, the internal capacity of said container placed with the ambient air fluid be communicated with,
B) drain (evacuating; Find time) step, during said drainage step, the internal capacity of said container is placed under the low pressure; The internal pressure that reduces said container in other words reaches pressure below atmospheric pressure (＜1 crust absolute value) up to the internal pressure of said container, and
C) gas bleed step during said gas bleed step, allows inert gas to get into said at least one container.
Play by ear, method of the present invention can have one or more in the following technical characterictic:
-carry out the drainage step b) through using the vavuum pump gas bleeding.
-said at least one container is at said NO/N
2Mixture is allowed to get into and experiences step a) and step c) before said at least one container in succession several times.
-two in succession comprise step a) and c) sequence comprise step a), b by one) and sequence c) separate.
– comprises step a), b) and sequence c) after and then one comprise step a) and c) sequence or one comprise step a), c) and sequence a).
-during step c), the said inert gas that is used for carrying out said gas bleed is a nitrogen.
-several gas containers experience step a) simultaneously to c).
-comprise step a) and c at least two of executeds) sequence after, allow by NO and N
2The gaseous mixture of forming gets into said one or more container.
-comprise step a) and c at least two of executeds) sequence after, (gas) below allowing gets into said one or more container in succession:
I) comprise less than the NO content of 10% (volume) by NO and N
2The gaseous state pre-composition of forming, up to reaching first pressure P 1, wherein absolute value is clung in P1＞1;
Ii) gaseous nitrogen is up to through said nitrogen and said NO/N
2The mixing of pre-composition and realize comprising the final gaseous state NO/N of the NO content that is less than or equal to 1200ppm (volume) and second pressure P 2 between P1 and 800 crust
2Mixture.
-gas bleed step c) comprises and allows gaseous nitrogen to get into said one or more container, in said one or more containers, reach between between 2 crust and 20 crust, the flushing pressure between 2 crust and 12 cling to preferably.
-during purifying step is a), keep the internal capacity of said container to be communicated with the atmosphere fluid, as long as the internal pressure of said internal tank is higher than minimum purification pressure (Pmin), 3.5 crust＞Pmin＞1 crust, preferably Pmin is between about 1.1 crust and 3 crust.
-during at least one drains step b), the internal capacity of said container is placed under the low pressure, up to reaching the stress level that is lower than 0.5 crust, is preferably lower than 0.2 crust.
-said method is included in the drainage step d) before the step a) and purifies the step e) that said filling system is connected at least one flexible hose of gas container.
-during said gas bleed step c),, stop to allow said at least one container of inert gas entering when the pressure in said at least one container reaches between between 2 crust and 20 crust, preferably during the value between 3 crust cling to 10.
-when the pressure in the internal capacity of said container reaches the value between 1 crust clings to 1.5, stop at purifying step and be communicated with the fluid of ambient air during a).
-the first pressure P 1 preferably is less than or equal to 5 crust between 2 crust and 10 crust.
-the second pressure preferably at least 200 clings between 100 crust and 700 crust.
-by NO and N
2The gaseous state pre-composition of forming comprises the NO content that is less than or equal to 8% (volume), preferably is less than or equal to the NO content of 5% (volume).
-by NO and N
2The gaseous state pre-composition of forming comprises NO content that the order of magnitude is 4% (volume) and the order of magnitude of said first pressure P 1 is 2 to 10 crust absolute values, and for example the order of magnitude is 2 to 5 crust absolute values.
-said final gaseous state NO/N
2Mixture comprises the NO content that is less than or equal to 1000ppm (volume), preferably said final gaseous state NO/N
2Mixture comprises between the NO content between 200ppm and 800ppm (volume) between 200ppm and the 1000ppm (volume) and more preferably.
-said method uses the gas container filling system that comprises the jockey that allows the one-time filling several vessels to carry out.
-said container is a cylinder, is preferably the cylinder with body of being processed by steel, aluminum or aluminum alloy.
In context of the present invention, the pressure of being quoted is absolute pressure.
Description of drawings
To come with reference to the description that accompanying drawing provides by means of hereinafter to understand the present invention better at present, in the accompanying drawings:
-Fig. 1 schematically shows an embodiment according to encapsulation circulation of the present invention, and
-Fig. 2 is the figure that is used to carry out the equipment of method of the present invention.
The specific embodiment
Fig. 1 schematically shows and can be applied to encapsulation gaseous state NO/N of the present invention
2An embodiment of the encapsulation circulation in the context of the method for mixture.
As visible, this encapsulation circulation comprises several sequential step, and these steps were spaced apart out on the time from T0 to T13, and is applicable to each cylinder and details hereinafter.The sequential step of method of the present invention is a) to c) shown in Fig. 1.
Between T0 and T1, the flexible hose of equipment is communicated with extraneous air, the internal capacity of flexible filling flexible pipe is placed with the ambient air fluid to be communicated with in other words, so that remove any possible residual unlifting pressure.During this stage, the one or more valves that are connected to the gas container of flexible pipe cut out, and consequently do not have the Gas Exchange with one or more containers.This is corresponding to the step d) of said method.
Between T1 and T2, use vavuum pump flexible hose inside to be placed under the low pressure of connection, i.e. pressure below atmospheric pressure, for example the order of magnitude is 0.15 crust, thereby makes and can remove any residual gas and/or the air that wherein comprises.Therefore, this stage also carries out under the situation that cylinder valve is closed.It is to make to check the safety measure whether all flexible pipes correctly connect and whether have leakage that flexible hose is placed under the vacuum.Particularly, if, then can't form stable vacuum if exist leakage or flexible pipe to be connected improperly.This is corresponding to the step e) of method schematically illustrated among Fig. 1.
Between T2 and T3, operating personnel open the residual pressure that exists in valve and each cylinder on each cylinder and rise subsequently and arrives pressure sensor---and this pressure sensor detects said pressure rising.Typically, the interior residual pressure of cylinder has the order of magnitude of about 3 to 4 crust absolute values.Before T2, nitrogen of no use carries out gas bleed to container.This is corresponding to the step f) of method schematically illustrated among Fig. 1.
Between T3 and T4, begin the actual treatment of each cylinder.More specifically, each cylinder all and atmosphere promptly allows to be accommodated under the simple effect of the pressure differential of gas in cylinder and between outside the cylinder in the cylinder loss to outside atmosphere, so that make the internal pressure of cylinder be reduced to atmospheric pressure.This is corresponding to the step a) of method of the present invention.At T4, therefore the internal pressure of cylinder more or less equals atmospheric pressure (the about 1 crust absolute value of 1atm=), and promptly the order of magnitude is 1 to 1.5 crust absolute value.
Between T4 and T5, use the nitrogen wash cylinder, the internal pressure of cylinder rises to about 10 crust simultaneously.Carry out the interpolation of nitrogen so that make the internal pressure of cylinder rise to required pressure via gas piping and/or nitrogen pressurization deposit.This is corresponding to the step c) of method of the present invention.
Between T5 and T6, allow to be accommodated in the interior nitrogen loss of cylinder once more to atmosphere, this any impurity that allows possibly exist in cylinder is removed.This is corresponding to the another step a) of method of the present invention.
Between T6 and T7; Through the internal capacity of cylinder being placed low pressure to get off to purify cylinder, up to being less than 0.2 crust absolute value, preferably being the inside low pressure of 0.05 crust less than 0.1 crust, the for example order of magnitude via the residual gas that uses vavuum pump to extract out to be accommodated in the cylinder.This is corresponding to the another step b) of method of the present invention.
Between T7 and T8, use nitrogen again cylinder to be washed, so that its internal pressure rises to about 10 crust as between T4 and T5.This is corresponding to the another step c) of method of the present invention.
Between T8 and T9, as time T 5 with between the T6 cylinder is communicated with ambient air.Residual gas pressure is maintained at about 1.35 crust then, gets into to avoid undesirable atmosphere pollution.This is corresponding to the another step a) of method of the present invention.
Between T9 and T10, use nitrogen again cylinder to be carried out other flushing, so that its internal pressure rises to about 10 crust as the front.This is corresponding to the another step c) of method of the present invention.
Between T10 and T11, nitrogen discharge in atmosphere, as between T8 and the T9 and between T5 and the T6, but is kept the residual internal pressure that the order of magnitude is 3 crust specifically.This is corresponding to the another step a) of method of the present invention.
Between T11 and T12, allow to comprise less than the NO content of 10% (volume) by NO and N
2The gaseous state pre-composition of forming gets into cylinder, so that reach the first stowing pressure P1, wherein P1＞1 is clung to, and typically the order of magnitude of pressure P 1 is 2 to 10 crust absolute values, preferably about 3 to 5 crust absolute values.Advantageously, by NO and N
2The gaseous state pre-composition of forming comprises the NO content that the order of magnitude is 4% (volume).
Between T12 and T13, allow gaseous nitrogen to get into subsequently and comprise the NO/N that is in first pressure P 1
2The container of pre-composition,------the gaseous state NO/N of---for example in this example be 180 to 200 cling to pressure---of 200 to 800ppm final NO content for example so that obtain to comprise the NO content that is less than or equal to 1200ppm (volume) and between the pressure P 2 between P1 and 800 crust
2Mixture.
This method can be via carrying out such as sealed in unit schematically illustrated among Fig. 2; Said sealed in unit is equipped be used for the filling gas container filling system 14 of---being cylinder---, and this filling system 14 comprises the jockey 15 that allows disposable connection several vessels 11-13---typically to allow to connect 2 to 20 cylinders simultaneously---.
Nitrogen is stored in the reservoir 1 with liquid form, is extracted out with liquid form by cryogenic pump 2 then, and said cryogenic pump 2 is being transported to nitrogen big hot-air heater 3, and---wherein nitrogen evaporates and the generation gaseous nitrogen---is compressed to the pressure that the order of magnitude is 100 to 300 crust with nitrogen before.As visible, this equipment comprises main line or the pipeline 20 that is used for nitrogen is transported to from reservoir 1 filling system 14.In fact, the pressure of pipeline from about 100 crust in the downstream immediately of the outflow stream of buffer volume flow in cylinder and and corresponding about 260 crust of the out-of-work threshold value of pump between change.
Nitrogen is transported to purifier 6 by pipeline 20 then, and this purifier 6 can for example use suitable molecular sieve---for example the molecular sieve of zeolite, silicon gel, aluminium oxide or similar type or its mixture---removes micro-O
2And H
2O.
It should be noted that pipeline 20 also is connected with subsequent use support (backup rack) 5 fluids with buffer volume 4, said buffer volume 4 can store some gaseous nitrogens, and said subsequent use support 5 includes several nitrogen cylinders.
In addition, this equipment also comprises frame case 16, and said frame case comprises several NO/N
2The cylinder 9 of pre-composition (comprising the NO of 4% (volume) at this), said cylinder 9 passes through NO/N
2Pre-composition feeding pipe 22 is connected with pipeline 20 fluids.In fact, NO/N
2Pipeline 22 directly is not connected mutually with nitrogen pipeline 20, but is connected with valve cell 8, and said valve cell 8 is connected with one or more filling systems 14 through pipeline 21 itself.Valve in the valve cell 8 makes the fluid in the cylinder 11 to 13 can select the system of being filled to 14.Therefore, nitrogen pipeline 20 and NO/N
2Pre-composition pipeline 22 at first is connected with filling system 14 fluids through common section 21 through valve cell 8 then.Valve cell 8 comprises valve, by the control element of control device 10 control etc.
The flowmeter 7 feasible N that can measure flow through pipeline 20 and 22
2Be transferred to such as computer equal controller 10 with the amount of NO and with mensuration information.
Said equipment also comprises the pipeline 17 with atmosphere, and this pipeline 17 allows gas is discharged into ambient air, especially place the step that is communicated with the ambient air fluid in purifying step or with the internal capacity of container during.
The vavuum pump (not shown) allows to drain one or more containers, promptly allows the internal pressure of container to drop to pressure below atmospheric pressure, promptly＜1 the crust absolute value.
Claims (15)
1. one kind is used for gaseous state NO/N
2Mixture is encapsulated in the method at least one container, it is characterized in that, is allowing said NO/N
2Before mixture got into, said at least one container experienced at least:
A) purifying step during said purifying step, places the internal capacity of said container with the ambient air fluid to be communicated with,
B) drain step, during said drainage step, the internal capacity of said container is placed under the low pressure, and
C) gas bleed step during said gas bleed step, allows inert gas to get into said at least one container.
2. according to last the described method of claim, it is characterized in that said at least one container is at said NO/N
2Mixture is allowed to get into and experiences step a) and step c) before said at least one container in succession several times.
3. according to each described method in the aforementioned claim, it is characterized in that, two in succession comprise step a) and c) sequence by comprising step a), b) and sequence c) separate.
4. according to each described method in the aforementioned claim, it is characterized in that, comprise step a), b) and sequence c) after and then comprise step a) and c) sequence or comprise step a), c) and sequence a).
5. according to each described method in the aforementioned claim, it is characterized in that during step c), the said inert gas that is used for carrying out said gas bleed is a nitrogen.
6. according to each described method in the aforementioned claim, it is characterized in that several gas containers experience step a) simultaneously to c).
7. according to each described method in the aforementioned claim, it is characterized in that, comprise step a) and c at least two of executeds) sequence after, allow by NO and N
2The gaseous mixture of forming gets into said one or more container.
8. according to each described method in the aforementioned claim, it is characterized in that, comprise step a) and c at least two of executeds) sequence after, get into said one or more containers below allowing in succession:
I) comprise less than the NO content of 10% (volume) by NO and N
2The gaseous state pre-composition of forming, up to reaching first pressure P 1, wherein absolute value is clung in P1＞1;
Ii) gaseous nitrogen is up to through said nitrogen and said NO/N
2The mixing of pre-composition and realize comprising the final gaseous state NO/N of the NO content that is less than or equal to 1200ppm (volume) and second pressure P 2 between P1 and 800 crust
2Mixture.
9. according to each described method in the aforementioned claim; It is characterized in that; Said gas bleed step c) comprises and allows gaseous nitrogen to get into said one or more container, in said one or more containers, reach between between 2 crust and 20 crust, the flushing pressure between 2 crust and 12 cling to preferably.
10. according to each described method in the aforementioned claim; It is characterized in that; During said purifying step a), keep the internal capacity of said container to be communicated with, as long as the internal pressure of said internal tank is higher than minimum purification pressure (Pmin) with the atmosphere fluid; 3.5 crust＞Pmin＞1 crust, preferably Pmin is between about 1.1 crust and 3 crust.
11. according to each described method in the aforementioned claim, it is characterized in that, during at least one drains step b), the internal capacity of said container placed under the low pressure, up to reaching the stress level that is lower than 0.5 crust, is preferably lower than 0.2 crust.
12., it is characterized in that said method is included in the drainage step d) before the step a) and purifies the step e) that said filling system is connected at least one flexible hose of gas container according to each described method in the aforementioned claim.
13., it is characterized in that said final gaseous state NO/N according to each described method in the aforementioned claim
2Mixture comprises the NO content that is less than or equal to 1000ppm (volume), preferably said final gaseous state NO/N
2Mixture comprises between the NO content between 200ppm and 800ppm (volume) between 200ppm and the 1000ppm (volume) and more preferably.
14. according to each described method in the aforementioned claim; It is characterized in that; During said gas bleed step c); When the pressure in said at least one container reaches between between 2 crust and 20 crust, preferably during the value between 3 crust cling to 10, stop to allow said at least one container of inert gas entering.
15. according to each described method in the aforementioned claim, it is characterized in that, when the pressure in the internal capacity of said container reaches the value between 1 crust clings to 1.5, stop at purifying step and be communicated with the fluid of ambient air during a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1155038 | 2011-06-09 | ||
| FR1155038A FR2976260B1 (en) | 2011-06-09 | 2011-06-09 | PROCESS FOR PACKAGING NO / N2 MIXTURES WITH PURGE STAGES AND PRIOR GAS RINSING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102814155A true CN102814155A (en) | 2012-12-12 |
| CN102814155B CN102814155B (en) | 2016-09-07 |
Family
ID=45998206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210188886.8A Active CN102814155B (en) | 2011-06-09 | 2012-06-08 | Have formerly purify and rinsing step for encapsulating NO/N2the method of mixture |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120312416A1 (en) |
| EP (1) | EP2532941B2 (en) |
| CN (1) | CN102814155B (en) |
| BR (1) | BR102012013702B8 (en) |
| ES (1) | ES2501090T5 (en) |
| FR (1) | FR2976260B1 (en) |
| ZA (1) | ZA201203663B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2976259B1 (en) * | 2011-06-09 | 2013-07-05 | Air Liquide | PROCESS FOR CONDITIONING A NO / N2 GAS MIXTURE |
| FR2976258B1 (en) * | 2011-06-09 | 2014-09-05 | Air Liquide | INSTALLATION OF PACKAGING OF NO TO MASS FLOWMETERS |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826632A (en) * | 1997-05-30 | 1998-10-27 | The Boc Group, Inc. | Dynamic gas cylinder filling process |
| US6152192A (en) * | 1998-02-11 | 2000-11-28 | Welding Company Of America | Controller for system for filling gas cylinders with single gas or gas mixture |
| US20030012709A1 (en) * | 2001-07-16 | 2003-01-16 | Mindi Xu | Integral blocks, chemical delivery systems and methods for delivering an ultrapure chemical |
| WO2008132402A1 (en) * | 2007-03-27 | 2008-11-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for preparing pressurised gas cylinders |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK0560928T3 (en) † | 1990-12-05 | 1997-12-01 | Gen Hospital Corp | Devices for the treatment of pulmonary vasoconstriction and asthma |
| US5540251A (en) * | 1994-02-01 | 1996-07-30 | Mayeaux; Paul H. | Precision gas blender |
| US5476115A (en) * | 1994-03-10 | 1995-12-19 | Praxair Technology, Inc. | Automatic gas blending system |
| US6655422B2 (en) † | 2001-09-26 | 2003-12-02 | Atnl, Inc. | Computer controlled apparatus and method of filling cylinders with gas |
| US20060060139A1 (en) * | 2004-04-12 | 2006-03-23 | Mks Instruments, Inc. | Precursor gas delivery with carrier gas mixing |
| US7328726B2 (en) * | 2006-01-20 | 2008-02-12 | Air Products And Chemicals, Inc. | Ramp rate blender |
| US7621302B2 (en) * | 2007-09-28 | 2009-11-24 | Airgas, Inc. | Coriolis dosing system for filling gas cylinders |
| CA2671029A1 (en) † | 2009-06-30 | 2010-12-30 | James S. Baldassarre | Methods of treating term and near-term neonates having hypoxic respiratory failure associated with clinical or echocardiographic evidence of pulmonary hypertension |
| FR2976259B1 (en) * | 2011-06-09 | 2013-07-05 | Air Liquide | PROCESS FOR CONDITIONING A NO / N2 GAS MIXTURE |
-
2011
- 2011-06-09 FR FR1155038A patent/FR2976260B1/en active Active
-
2012
- 2012-05-03 EP EP12166496.5A patent/EP2532941B2/en active Active
- 2012-05-03 ES ES12166496.5T patent/ES2501090T5/en active Active
- 2012-05-18 ZA ZA2012/03663A patent/ZA201203663B/en unknown
- 2012-05-24 US US13/480,289 patent/US20120312416A1/en not_active Abandoned
- 2012-06-06 BR BR102012013702A patent/BR102012013702B8/en active IP Right Grant
- 2012-06-08 CN CN201210188886.8A patent/CN102814155B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826632A (en) * | 1997-05-30 | 1998-10-27 | The Boc Group, Inc. | Dynamic gas cylinder filling process |
| CN1137767C (en) * | 1997-05-30 | 2004-02-11 | 波克股份有限公司 | Dynamic gas cylinder filling process |
| US6152192A (en) * | 1998-02-11 | 2000-11-28 | Welding Company Of America | Controller for system for filling gas cylinders with single gas or gas mixture |
| US20030012709A1 (en) * | 2001-07-16 | 2003-01-16 | Mindi Xu | Integral blocks, chemical delivery systems and methods for delivering an ultrapure chemical |
| WO2008132402A1 (en) * | 2007-03-27 | 2008-11-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for preparing pressurised gas cylinders |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2501090T3 (en) | 2014-10-01 |
| ES2501090T5 (en) | 2018-04-18 |
| EP2532941B2 (en) | 2018-02-28 |
| FR2976260A1 (en) | 2012-12-14 |
| FR2976260B1 (en) | 2013-07-05 |
| ZA201203663B (en) | 2013-01-30 |
| BR102012013702B1 (en) | 2022-04-26 |
| BR102012013702B8 (en) | 2022-05-24 |
| BR102012013702A2 (en) | 2013-07-30 |
| US20120312416A1 (en) | 2012-12-13 |
| EP2532941B1 (en) | 2014-07-02 |
| EP2532941A1 (en) | 2012-12-12 |
| CN102814155B (en) | 2016-09-07 |
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