EP0625630B1 - Dispositif autonome d'alimentation en énergie d'un appareil animé par un gaz sous pression et application à une installation de congélation - Google Patents

Dispositif autonome d'alimentation en énergie d'un appareil animé par un gaz sous pression et application à une installation de congélation Download PDF

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Publication number
EP0625630B1
EP0625630B1 EP19940400685 EP94400685A EP0625630B1 EP 0625630 B1 EP0625630 B1 EP 0625630B1 EP 19940400685 EP19940400685 EP 19940400685 EP 94400685 A EP94400685 A EP 94400685A EP 0625630 B1 EP0625630 B1 EP 0625630B1
Authority
EP
European Patent Office
Prior art keywords
tank
pump
cryogenic liquid
valve
pressure
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.)
Expired - Lifetime
Application number
EP19940400685
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0625630A1 (fr
Inventor
Jean-Pierre Germain
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0625630A1 publication Critical patent/EP0625630A1/fr
Application granted granted Critical
Publication of EP0625630B1 publication Critical patent/EP0625630B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • 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
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • 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
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F17C2203/013—Reinforcing means in the vessel, e.g. columns
    • 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • 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
    • 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
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser

Definitions

  • the present invention relates to a device for supplying energy to a pneumatic device driven by a pressurized gas and, more particularly, to such a device making it possible to ensure the autonomy of such a device, of the type comprising a transportable cryogenic liquid reservoir and means associated with the reservoir for withdrawing and vaporizing liquid from the reservoir and addressing it to the user device.
  • the object of the present invention is to provide an improved device of this type, of a simplified and robust design, of increased reliability and which can be used for numerous diverse applications.
  • the withdrawal and vaporization means comprise at least one portion of the circuit incorporating a vaporization means and delimited between a non-return valve upstream and a valve controlled downstream.
  • Another object of the present invention is to propose an application of this device to the supply of cryogenic liquid to a freezing installation, in particular for freezing food products.
  • a reservoir 1 of cryogenic liquid conventionally comprising a double wall 1 1 , 1 2 , the internal wall 1 2 containing the cryogenic liquid, liquid nitrogen for example.
  • two serpentine conduits 2 1 and 2 2 are connected at 3 to the bottom of the wall 1 2 of the tank to draw cryogenic liquid contained in the tank.
  • On each conduit 2 1 , 2 2 are fitted, respectively, non-return valves 4 1 , 4 2 , evaporators 5 1 , 5 2 and controlled valves 6 1 , 6 2 .
  • the conduits 2 1 and 2 2 are thus mounted in parallel between the withdrawal point 3 and the inlet 7 1 of engine gas from an apparatus 7 such as a pump or any pneumatic tool.
  • this device is constituted by a pump 7 immersed in the cryogenic liquid from the reservoir to discharge this liquid into a supply duct 8 of an installation using a such liquid.
  • this installation can be that described in European patent application No. 505 222 filed in the name of the applicant, used for freezing food products.
  • the conduits 2 1 and 2 2 and the associated members are arranged between the two walls 1 1 and 1 2 of the tank so as to constitute a transportable whole, possibly using handles 18 1 , 18 2 .
  • the conduits 2 1 and 2 2 are used to vaporize the liquid withdrawn at 3 from this tank. It is understood that the liquid withdrawn having passed through the non-return valve 4 1 for example, flows into the evaporator 5 1 . This can be formed, for example, by a capacity loaded with metal chips. The cryogenic liquid then flows in thin films on the surface of these chips, thereby establishing a large evaporation surface for liquid nitrogen.
  • the vaporized nitrogen then spreads in the coil from the non-return valve 4 1 to the valve 6 1 supposed to be closed.
  • the increasing pressure of nitrogen on the valve prevents it from opening and this pressure can then continue to increase in the closed enclosure delimited in the conduit between the valve 4 1 and the closed valve 6 1 , until that a suitable pressure is established, 6 bars for example for the pump 7.
  • a suitable pressure 6 bars for example for the pump 7.
  • the vaporization of the nitrogen in the pipe 2 1 takes a certain time and that, after the opening of the valve 6 1 , the pressure of the nitrogen gas supplied to the pump begins to decrease, possibly up to a value not suitable for the pump supply.
  • the device according to the invention therefore comprises means for controlling the valves 6 1 , 6 2 .
  • These means may include, as shown in the drawing, a pneumatic reverser 9 supplied with pressurized gas by a line 10 pitted on the circuit 2 1 for example with return to the tank above the free surface of liquid nitrogen, a valve 11 with manual closure being arranged on this line.
  • a pneumatic reverser 9 supplied with pressurized gas by a line 10 pitted on the circuit 2 1 for example with return to the tank above the free surface of liquid nitrogen, a valve 11 with manual closure being arranged on this line.
  • this valve is opened.
  • the switching frequency of the inverter 9 is adjusted by an electronic unit 12, as a function of the time of vaporization of the nitrogen in each of the two circuits 2 1 , 2 2 .
  • This box can also be supplied by signals P 1 , P 2 representative of the pressures prevailing in the circuits 2 1 , 2 2 , respectively, to adjust the frequency of tilting of the inverter so as to best ensure the continuity of the supply of engine gas to the pump 7 at a suitable predetermined pressure.
  • the device according to the invention also comprises a line 13 provided with a pressure regulator 14 and connected between the circuit 2 1 for example, and the reservoir to maintain above the free surface of the liquid nitrogen at a predetermined pressure, for example 0.7 bar, so as to facilitate the flow of liquid nitrogen in the vaporization ducts.
  • a pressure regulator 14 connected between the circuit 2 1 for example, and the reservoir to maintain above the free surface of the liquid nitrogen at a predetermined pressure, for example 0.7 bar, so as to facilitate the flow of liquid nitrogen in the vaporization ducts.
  • safety valves 15, 16, 17 are mounted respectively on the circuits 2 1 , 2 2 and on the tank.
  • the invention makes it possible to ensure the complete autonomy of a cryogenic liquid supply source, with a pump submerged in the tank.
  • the invention is not limited to the embodiment described and shown which has been given only by way of example.
  • the device according to the invention could just as easily supply engine gas to an appliance external to the tank.
  • more than two serpentine circuits could be provided between the two walls of the tank to further smooth the pressure of the engine gas delivered by the device according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP19940400685 1993-04-16 1994-03-30 Dispositif autonome d'alimentation en énergie d'un appareil animé par un gaz sous pression et application à une installation de congélation Expired - Lifetime EP0625630B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304501 1993-04-16
FR9304501A FR2704026B1 (fr) 1993-04-16 1993-04-16 Dispositif autonome d'alimentation en énergie d'un appareil pneumatique animé par un gaz sous pression.

Publications (2)

Publication Number Publication Date
EP0625630A1 EP0625630A1 (fr) 1994-11-23
EP0625630B1 true EP0625630B1 (fr) 1997-07-09

Family

ID=9446141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940400685 Expired - Lifetime EP0625630B1 (fr) 1993-04-16 1994-03-30 Dispositif autonome d'alimentation en énergie d'un appareil animé par un gaz sous pression et application à une installation de congélation

Country Status (8)

Country Link
US (1) US5442927A (es)
EP (1) EP0625630B1 (es)
JP (1) JPH06307599A (es)
BR (1) BR9401492A (es)
DE (1) DE69404085T2 (es)
DK (1) DK0625630T3 (es)
ES (1) ES2104298T3 (es)
FR (1) FR2704026B1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9724168D0 (en) 1997-11-14 1998-01-14 Air Prod & Chem Gas control device and method of supplying gas
GB2338034A (en) * 1998-09-29 1999-12-08 Lannanet Ltd A non combustible expanding gas motor
US6505469B1 (en) 2001-10-15 2003-01-14 Chart Inc. Gas dispensing system for cryogenic liquid vessels
GB0513463D0 (en) * 2005-07-01 2005-08-10 Highview Entpr Ltd Injection apparatus for cryogenic engines
GB2499815B (en) * 2012-02-29 2014-05-28 Siemens Plc Over-pressure limiting arrangement for a cryogen vessel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254587A (en) * 1937-11-09 1941-09-02 Linde Air Prod Co Apparatus for dispensing gas material
US3135099A (en) * 1961-12-08 1964-06-02 Air Reduction Vaporizing station for liquefied gas
US3451342A (en) * 1965-10-24 1969-06-24 Everett H Schwartzman Cryogenic engine system and method
US3987632A (en) * 1970-02-27 1976-10-26 Pereda Eugene F Liquid air engine
GB1454128A (en) * 1974-06-10 1976-10-27 Coal Industry Patents Ltd Pneumatic drive using revaporised liquefied-gas
US4676289A (en) * 1984-08-13 1987-06-30 Cherng Yi Su Automobile tire having retractable tread studs
US4838034A (en) * 1988-07-22 1989-06-13 International Cryogenics, Inc. Compressed-gas power source for portable gas-driven tools
US4899546A (en) * 1988-11-02 1990-02-13 Harsco Corporation Cryogenic liquid container
FR2655407B1 (fr) * 1989-12-01 1993-10-29 Air Liquide Reservoir pour liquide cryoenique.

Also Published As

Publication number Publication date
FR2704026A1 (fr) 1994-10-21
FR2704026B1 (fr) 1995-05-19
ES2104298T3 (es) 1997-10-01
US5442927A (en) 1995-08-22
BR9401492A (pt) 1994-10-25
DE69404085D1 (de) 1997-08-14
EP0625630A1 (fr) 1994-11-23
DE69404085T2 (de) 1998-01-22
DK0625630T3 (da) 1997-12-08
JPH06307599A (ja) 1994-11-01

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