EP0323459A1 - Procede et dispositif de vidage de recipients contenant du gaz - Google Patents

Procede et dispositif de vidage de recipients contenant du gaz

Info

Publication number
EP0323459A1
EP0323459A1 EP19870904977 EP87904977A EP0323459A1 EP 0323459 A1 EP0323459 A1 EP 0323459A1 EP 19870904977 EP19870904977 EP 19870904977 EP 87904977 A EP87904977 A EP 87904977A EP 0323459 A1 EP0323459 A1 EP 0323459A1
Authority
EP
European Patent Office
Prior art keywords
container
pressure
gas
ejector
flow
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19870904977
Other languages
German (de)
English (en)
Inventor
Karl Johan Ahlblad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGA AB
Original Assignee
AGA AB
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 AGA AB filed Critical AGA AB
Publication of EP0323459A1 publication Critical patent/EP0323459A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • 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

Definitions

  • the present invention concerns a method for discharging gas filled containers to a gas pressure lower than a first pressure, whereby the gas is discharged to a process station environment having the same pressure as the first pressure.
  • Industrial gases in particular are transported and store at a very high pressure, e.g. 200 bar.
  • a very high pressure e.g. 200 bar.
  • the gas removed from the containers used at a variety of pressures, ranging from atmospheric pressure to fairly high pressures, such as 40 bar for certain chemical processes.
  • the object of the present invention is to provide a metho and a means of discharging containers filled with gas to a recipient pressure below the working pressure or ambient pressure, without the use of compressors.
  • Fig 1 shows a pressure reduction set-up for discharging gas containers in four stages to a pressure substantially lower than that against which the containers are working.
  • the working pressure, designated PI is usually largely constant and is the existing pressure in a process station A or the environment.
  • the outlet of the ejector 9 is connected to a line 20, preferably equipped with a valve 21, which is connected to the process station A, whose pressure is PI.
  • a line 13 connected to a low-pressure inlet on the ejector 9 has three branch lines 14, 15 and 16, each of which is fitted with a valve 17, 18 and 19, respectively. All valves 7, 21, 17, 18 and 19 can be set to at least two positions, fully open and fully closed. Each branch line is connected to its own gas-charged container 2, 3 and 4, respectively.
  • container 1 When container 1 is connected to line 8 it contains gas at a pressure Pm.
  • container 4 of containers 2, 3 and 4 is charged to the highest pressure P7, which is generally corresponding to the working pressure Pi, container 2 is charged to the lowest pressure P2 and container 3 is charged to a pressure P5, which lies between pressure P7 and pressure P2.
  • gas is made to flow from container 1, in which the gas pressure at the onset is Pm, through the ejector 9 to the process station A.
  • Valve 17 being open, the gas in container 2 is in communication with the ejector 9 via the low-pressure inlet, with valves 18 and 19 being closed.
  • the gas flowing from container 1 through the ejector 9 draws gas from container 2, causing the pressure inside container 2 to be reduced further.
  • a predetermined quantity of gas has been discharged from container 1, i.e. when the pressure inside this container has been reduced to a predetermined value P3 the pressure inside container 2 will have been reduced from P2 to P4.
  • valve 17 is closed and valve 18 is opened.
  • the gas flo ing from container 1 now draws gas from container 3.
  • P6 the pressure inside container 1
  • P8 the pressure in container 3 will have bee reduced to approximately P2, which was the initial pressure inside the second container 2.
  • Valve 18 is now closed and val 19 opened so that gas from the fourth container will be drawn to the process station A.
  • the pressure in container 1 ha been reduced to P8 the pressure in the fourth container 4 wi have been reduced to P5, whereupon valve 19 is closed.
  • valve 7 whic can be a valve on the container, is then closed, and container 1 is connected to line 14 in place of container 2, which is almost empt .
  • valve 18 in line 15 is also opened, since container 3 now has the lowest pressure P2 of the three containers 3, 4 and 1, respectively, connected to line 13.
  • valve 18 in line 15 is closed and valve 19 opened, with the pressure in container 5 having been reduced to P3.
  • valve 19 is closed and valve 17 opened, an when the pressure in container 5 has been reduced to P8, valve 17 is closed.
  • the pressure in container 1 will now have been reduced to P5, which is lower than PI.
  • the pressur in container 5 is allowed to be reduced to PI, whereupon the container, with valve 7 closed, is connected to line 15 in place of container 3, which is now almost empty and having a pressure P4.
  • the third stage process in a similar way: a sixth container, charged with gas to the pressure Pm is connected to line 8 and the procedure is repeated in the fourth stage.
  • valve 18 When gas is released from container 1 and allowed to flow through the ejector 9 to the process station, in which the pressure PI, e.g. 40 bar, is maintained, valve 18 is open.
  • the pressure in container 3 is P50.
  • valve 18 is closed and valve 19 opened to connect the gas in container 4 with the flow of gas from container 1 through the ejector 9.
  • the pressure in container 4 is P70, which is approximately equal to PI, i.e. 40 bar.
  • P60 which in this example is 50 bar
  • valve 19 is closed.
  • the pressure in container 4 has now been reduced to P50, which is approximately 10 bar. Since the propelling force from container 1, where the pressure is 50 bar or lower, is sufficient to draw any * substantial quantity of gas from container 4, valve 19 can be closed as the pressure in container 1 is reduced to approximately PI.
  • valve 7 When the pressure in container 1 is PI, valve 7 is closed and container 1 is connected to line 15 in place of container 3, which is now almost empty.
  • a new container 5, charged with gas to a pressure Pm, is connected to line 8 and valves 7 and 19 are opened simultaneously.
  • the pressure in container 4 is P50, i.e. 10 bar.
  • P30 i.e. 100 bar
  • valve 19 is closed and valve 18 opened.
  • the pressure in container 4 is P50, which, in this example is 2 bar.
  • valve 18 When the pressure in container 5 has been reduced to P60, i.e. 50 bar, valve 18 is closed, breaking the communication between the gas flow from container 5 and container 1, and the pressure in container 5 is then lowered to PI, i.e. 40 bar.
  • container 5 is disconnected from line 8, and then connected to line 16 in place of container 4.
  • a container 6, charged to a pressure Pm is now connected to line 8 in place of container 5.
  • Valves 18 and 7 are then opened simultaneously, whereupon the flow of gas from container 6 draws gas from container 1, which, at the time valve 18 is opened is charged with gas to the pressure P50, i.e. 10 bar.
  • P50 i.e. 10 bar.
  • valve 1 is closed and valve 19 opened, container 5 in communication with the flow of gas from container 6, and the pressure in container 1 has been reduced to P2, i.e. 2 bar.
  • this method makes it possible to reduce substantially the quantity of gas that is transported back an forth between the filling station and the process station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Un procédé, qui permet de vider des récipients remplis de gaz dont la pression passe ainsi d'un premier niveau (P1) à une pression inférieure, consiste à vider le gaz des récipients dans une station de traitement (A) ou ailleurs à l'extérieur où la première pression (P1) est maintenue. On laisse le gaz provenant d'un premier récipient (1) s'écouler à travers un éjecteur (9) vers une station de traitement (A) et on établit une connexion au niveau de l'entrée à basse pression de l'éjecteur (9) entre un second récipient (2) rempli d'un gaz à une seconde pression (P2) et le flux de gaz traversant l'éjecteur, le flux de gaz provenant du premier récipient (1) pouvant ainsi aspirer le gaz provenant du second récipient (2). Un dispositif permettant d'appliquer ledit procédé comprend un premier récipient de gaz (1) dont la pression est sensiblement supérieure à P1 et qui est connecté à un éjecteur (9) par l'intermédiaire d'une conduite (8) pourvue d'une soupape (7), le gaz provenant du premier récipient (1) étant vidé par l'intermédiaire de l'éjecteur dans la station de traitement (A). Ledit dispositif comprend également au moins un autre récipient (2), qui est rempli de gaz à une pression approximativement égale ou inférieure à la première pression (P1) et qui est connecté au flux de gaz provenant du premier récipient (1) par l'intermédiaire d'une conduite (14) munie d'une autre conduite (17).
EP19870904977 1986-09-02 1987-06-18 Procede et dispositif de vidage de recipients contenant du gaz Withdrawn EP0323459A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8603677A SE454382B (sv) 1986-09-02 1986-09-02 Sett vid tomning av med gas fyllda behallare samt anordning for genomforande av settet
SE8603677 1986-09-02

Publications (1)

Publication Number Publication Date
EP0323459A1 true EP0323459A1 (fr) 1989-07-12

Family

ID=20365462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870904977 Withdrawn EP0323459A1 (fr) 1986-09-02 1987-06-18 Procede et dispositif de vidage de recipients contenant du gaz

Country Status (7)

Country Link
EP (1) EP0323459A1 (fr)
JP (1) JPH01503796A (fr)
BR (1) BR8707806A (fr)
DK (1) DK237888A (fr)
FI (1) FI890959A (fr)
SE (1) SE454382B (fr)
WO (1) WO1988001708A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004779B1 (fr) * 1998-11-27 2005-06-29 Linde AG Procédé et dispositif pour l'alimentation et pour la récupération de gaz
US7470411B2 (en) * 2005-01-13 2008-12-30 General Electric Company Vaporization system
JP4690753B2 (ja) * 2005-03-23 2011-06-01 カグラベーパーテック株式会社 液化ガス移充填システム
AT9161U1 (de) 2006-01-16 2007-05-15 Magna Steyr Fahrzeugtechnik Ag System zur versorgung eines verbrauchers mit gasförmigem brennstoff und verfahren
FR2918734A1 (fr) * 2007-07-09 2009-01-16 Air Liquide Procede de transfert d'un fluide a un poste utilisateur et centrale d'inversion mettant en oeuvre ce procede.
WO2014086415A1 (fr) * 2012-12-05 2014-06-12 Blue Wave Co S.A. Système de décharge de cng
WO2020016648A1 (fr) * 2018-07-19 2020-01-23 Sasu Energiesysteme Gmbh Procédé et dispositif pour remplir un récipient avec un gaz comprimé

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105839A1 (de) * 1971-01-25 1972-08-24 Sargent Industries, Inc., Los Angeles, Calif. (V.StA.) Ansaugeinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8801708A1 *

Also Published As

Publication number Publication date
FI890959A0 (fi) 1989-02-28
SE8603677L (sv) 1988-03-03
FI890959A (fi) 1989-02-28
SE8603677D0 (sv) 1986-09-02
DK237888D0 (da) 1988-05-02
JPH01503796A (ja) 1989-12-21
WO1988001708A1 (fr) 1988-03-10
BR8707806A (pt) 1989-08-15
SE454382B (sv) 1988-04-25
DK237888A (da) 1988-05-02

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