WO2013167638A1 - Alimentation d'une pompe en liquide cryogène - Google Patents

Alimentation d'une pompe en liquide cryogène Download PDF

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Publication number
WO2013167638A1
WO2013167638A1 PCT/EP2013/059555 EP2013059555W WO2013167638A1 WO 2013167638 A1 WO2013167638 A1 WO 2013167638A1 EP 2013059555 W EP2013059555 W EP 2013059555W WO 2013167638 A1 WO2013167638 A1 WO 2013167638A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
pressure
buffer
cryogenic liquid
container
Prior art date
Application number
PCT/EP2013/059555
Other languages
German (de)
English (en)
Inventor
Fritz PAPMAHL
Julian TERPITZ
Chaojie Zhang
Original Assignee
Tge Gas Engineering Gmbh
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 Tge Gas Engineering Gmbh filed Critical Tge Gas Engineering Gmbh
Publication of WO2013167638A1 publication Critical patent/WO2013167638A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • 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
    • 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
    • F17C2201/0109—Shape cylindrical with exteriorly curved 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/0195—Shape variable with bellows
    • 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
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/054—Size medium (>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
    • F17C2201/056—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
    • 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
    • F17C2205/0149—Vessel mounted inside another one
    • 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
    • F17C2205/0335—Check-valves or non-return 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, 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
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • 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
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—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
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/042—Localisation of the filling point
    • F17C2225/046—Localisation of the filling point in the liquid
    • 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
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/042—Localisation of the filling point
    • F17C2225/046—Localisation of the filling point in the liquid
    • F17C2225/047—Localisation of the filling point in the liquid with a dip tube
    • 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
    • F17C2227/0107—Propulsion of the fluid by pressurising the ullage
    • 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
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0171—Arrangement
    • F17C2227/0178—Arrangement in the vessel
    • 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
    • F17C2227/0171—Arrangement
    • F17C2227/0185—Arrangement comprising several pumps or compressors
    • 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
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another 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
    • 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
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0376—Localisation of heat exchange in or on a vessel in wall contact
    • F17C2227/0383—Localisation of heat exchange in or on a vessel in wall contact outside the vessel
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0443—Flow or movement of content
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/027—Making transfer independent of vessel orientation
    • 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
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • 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
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0189—Planes

Definitions

  • the invention relates to a system for supplying a cryogenic liquid pump, in particular as fuel for an aircraft, as cryogenic
  • Fuel is preferably a liquid gas such as liquefied natural gas, so LNG used,
  • Liquefied natural gas plays an important role as a supplement or substitute for kerosene, while liquid natural gas is generally stored at temperatures around - 1 60 ° C and close to atmospheric pressure of 1 bar (abs.). This is the
  • the state of the cryogenic liquid in the container is critical to pumping. Especially with regard to the cryogenic liquid's absorbency.
  • the cryogenic liquid becomes like liquefied natural gas usually increased to an outlet pressure of more than 40 bar and fed to an aircraft engine.
  • kerosene which is far below the
  • Boiling point is stored in the aircraft, for example, liquefied natural gas, which is present as a boiling liquid in the container, can not be sucked easily. Belm suction can cause a pressure below the bearing pressure in the suction port of the pump. This results in liquefied natural gas by boiling to a vapor formation and thus to a Fiüsstechniksabriss, A suction pressure of the pump below the equilibrium pressure corresponding to a
  • cryogenic liquid it is necessary to ensure a reliable supply of the cryogenic liquid to the pump, in particular when the cryogenic liquid is used as fuel for an aircraft. Turbulence or the passage of "air holes" during flight problematic, as these ua.
  • the external shocks can cause a circulation of the cryogenic liquid in the container, so that a reliable supply to the pump is impaired, As a threshold on the ground during dynamic landing, there is usually a slight
  • Conditioning and supplying cryogenic liquids to a consumer comprising a supply tank, a heat exchanger and an accumulator.
  • the heat exchanger converts the cryogenic liquid into a gas for delivery to a consumer such as an internal combustion engine.
  • an accumulator may be provided to the
  • the device does not have a pump for the supply of cryogenic liquid to flow through the cryogenic liquid evaporated in the heat exchanger to a consumer.
  • the invention is based on the object, a system for a reliable and efficient supply of a cryogenic liquid pump
  • a buffer device is provided between the container for storing the cryogenic liquid and the pump for withdrawing the cryogenic liquid.
  • the buffer device allows one
  • a device for increasing the container internal pressure is provided.
  • the increased internal container pressure also causes an overpressure of the cryogenic liquid in the downstream buffer device.
  • the extraction pump which is connected in this way, is supplied with cryogenic liquid in an improved way due to the overpressure.
  • the overpressure in the buffering device is substantially gravitationally independent, it can be ensured that interference with turbulence is prevented when the system is used on board an aircraft.
  • the increased pressure in the container as well as in the
  • Buffer device thus enables improved safe, reliable fuel supply of an aircraft. Furthermore, boiling of the cryogenic liquid upon suction by the pump is avoided, so that the suction capacity of the cryogenic liquid is increased.
  • the means for increasing the internal pressure of the container may inter alia.
  • cryogenic liquid used for pressurizing the container.
  • a compressed gas in particular a
  • Inert gas such as argon or nitrogen in the pressurizing container be supplied.
  • inert gas such as argon or nitrogen in the pressurizing container be supplied.
  • a buffer tube in particular a spiral or helical coil in the
  • the compact arrangement in particular In a coil design minimizes the heat input into the
  • the volume of the buffer tube is preferably such that a supply of the removal pump for at least 1 second, preferably at least 3 seconds is made possible, so that a temporary disturbance such as a Druckabfali can be sufficiently compensated in the container. It is also advantageous to provide a degassing device, in particular upstream of the removal pump, preferably between the removal pump and the buffer tube. A gass in 'the
  • Buffer line can escape in this way in the degassing, so that the sampling pump is protected against deterioration of performance or damage.
  • the gas can then through the
  • the buffer device has a deflectable buffer memory, which allows a buffering of the cryogenic liquid.
  • the deflectable buffer memory is preferred. designed as a flexible bellows to include a variable volume can.
  • one or more flexible membranes can be provided, which also allow a deflection of the buffer memory
  • Buffer memory is preferably designed so that no frictional parts are provided for the deflection of the buffer and the deflection works wear-free, the maintenance of the buffer memory can be increased, the deflectable buffer memory helps that the cryogenic liquid are cached under pressure in the buffer device can and thus a reliable supply of the sampling pump is made possible. It is particularly advantageous »one or more elastic elements on
  • the buffer can be biased for example by means of springs» 'to obtain a spring-loaded buffer memory, to return the cryogenic liquid from the Buffer storage to prevent »is the buffer preferably a check valve
  • the volume of the buffer memory is preferably designed such that a supply of the
  • Ent Seapumpe for at least 1 second, more preferably for at least 5 seconds, is allowed to disturbances such as
  • the means for increasing the pressure in the buffer device comprises a precursor pump.
  • the precursor pump is preferably designed as a low-pressure pump for an operating pressure of not more than 1 0 bar. Between the precursor pump and buffer memory can be conveniently provided a check valve to return from the precursor pump.
  • the precursor pump conveys the cryogenic liquid from the container preferably under pressure into the buffer device, in particular into the deflectable buffer memory, so that an increase in pressure of the cryogenic liquid is effected in the buffer device, in particular by providing elastic elements such as springs on the buffer memory at the same time possible to store the generated overpressure in the buffer device by removing the elastic elements during
  • Restoring forces of the elastic elements have a pressure effect on the cryogenic liquid in the buffer, so that the increased pressure in the
  • Buffer device can be maintained, it is particularly advantageous. to design the precursor pump for a pressure increase of the cryogenic liquid of at least 2 bar to allow an effective filling of the buffer memory.
  • a precursor pump for increasing the pressure in the buffer device is a means for increasing the
  • Constructively advantageous can arrange the precursor pump in the container for storage of the cryogenic liquid, By arranging in the container can be omitted costly sealing measures. Furthermore, this can be reduced by heat losses, so that the thermal efficiency of the system can be increased, It is also advantageous to
  • Buffer device are provided in particular advantageously with the deflectable buffer memory in the container, for the buffer device then no complex sealing measures and thermal insulation is required. It succeeds so for a cryogenic applications thermally particularly efficient arrangement, which is particularly suitable for use on board an aircraft by its compact arrangement, A container in the pre-stage pump, buffer device and / or removal pump is / are integrated, can then be particularly simple Be retrofitted in an aircraft so as to allow easy retrofitting of existing aircraft,
  • a pressurized container that can be filled with gas and / or liquid is used for pressurizing the therein
  • deflectable buffer memory provided.
  • an externally stored compressed gas is supplied to the pressure vessel, so as to regulate the pressurization
  • a gas for the pressure vessel a gas is preferably used, which does not condense at the operating pressure and operating temperatures.
  • nitrogen is used, whereby gases such as helium, argon and hydrogen can be used
  • the pressure vessel preferably has no or only a slight overpressure compared to the internal pressure of the buffer memory, since the internal pressure of the buffer reservoir starting from the precursor pump is almost identical to the pressure applied in the pressure vessel,
  • the pressure vessel with deflectable buffer memory can also be arranged outside the container for storing the cryogenic liquid, which is particularly advantageous if the removal pump is also provided outside the container.
  • the external components such as connecting pipes, pumps, containers with a
  • This preferably comprises a refrigerant which is conducted between an insulation and a component.
  • the insulation in this case is preferably designed as a vacuum insulation, in order to achieve efficient cooling.
  • Between vacuum insulation and the component wall is preferably a closed space
  • a gas is preferably used, so that a faster and more uniform coolant distribution can be achieved than with liquids.
  • the temperature of the refrigerant is adjusted in particular below the storage temperature of the cryogenic liquid such as liquefied natural gas. So can one
  • Liquid is present in the system components or is being conveyed. The entire system remains ready for use at any time. Due to the vacuum insulation, the required cooling capacities are very low and a simple refrigeration system can be based, for example
  • Gas relaxation preferably be used with nitrogen
  • the frequency converter is preferably suitable, depending on the pressure on the suction side of the pump
  • a measuring device for the pressure on the suction side of the removal pump is provided,
  • the measuring device may comprise a pressure control for controlling the frequency converter, It succeeds sc set on the suction side of the removal pump in a targeted manner a pressure » So that a demand-oriented supply of the sampling pump is made possible, It is particularly advantageous to the pressure in the
  • Buffer device in particular on the suction side of the removal pump at least 2 bar, for example, set 3 to 6 bar above the container internal pressure.
  • the frequency converter is preferably suitable to be operated as a function of the flow at the outlet of the removal pump, For this is preferably a
  • the measuring device can be used to control the
  • the flow display control can also by a
  • Adjusted fuel control of the aircraft engine which is provided in particular in the cockpit of the aircraft.
  • Fig. 1 is a schematic representation of a device according to the invention
  • FIG. 2 shows a schematic representation of a further embodiment
  • Fig. 3 is a detail view of a buffer memory
  • FIG. 4 a schematic representation of a further embodiment,
  • the system for supplying a pump comprises according to Figure 1, a container 1 for the storage of liquefied natural gas 2, which by means of a
  • the container 1 is preferably designed as a pressure-resistant tank and expediently has an insulating layer as protection against the ingress of heat from the environment,
  • About the liquefied natural gas 2 is a gas phase 3 of the
  • Liquefieddgases 2 which in particular vaporized Liquefied natural gas, so "Boll-off gas" record can be provided in the upper part of the container 1.
  • This can serve on the one hand for filling the container 1 with liquefied natural gas 2.
  • a gas or vapor mixture can be supplied to the feed line 4 in order to increase the internal pressure of the container 1 and thus to achieve an overpressure in the container 1.
  • an inert gas such as nitrogen or argon can be used
  • the removal pump 8 is preferably a high-pressure pump with an operating pressure of at least 40 bar in order to use the cryogenic liquid in particular as a compressed fuel for an aircraft.
  • the drive of the E take-pump 8 can electrically or pneumatically, for example by means of compressed air such.
  • the buffer device comprises according to Figure 1, a buffer tube 5 and ei ne
  • Buffer tube 5 and degassing 6 preferably have additional cooling such as Vakuumisoi réelle 25 and refrigerant 26 to prevent heat input into the buffer device.
  • the buffer tube 5 is preferred as
  • Buffer tube 5 in particular diameter and length are designed for a desired buffer time a to allow a reliable supply to the sampling pump 8, the degassing 6 can be configured as a pressure-resistant hollow sphere.
  • the volume of the degassing tank 6 is preferred adapted to the volume of the buffer tube 5, to ensure a correspondingly sufficient degassing.
  • Entgasungs matterers 6 can be provided in the upper region of the container »while the removal from the degassing 6 takes place from the lower region. Gaseous fractions in the cryogenic liquid, in particular gas bubbles, which have been conveyed for example by turbulence into the buffer device, can thus be separated in the degassing vessel 1.
  • the downstream suction side 7 of the removal pump 8 thus has largely no gaseous components In the cryogenic
  • the Puffervorrichfung according to Figure 2 comprises a precursor pump 9 and a ausienkbaren buffer memory 1 1, the precursor pump 9 can be arranged as well as the removal pump 8 directly inside the container 1 for storage of the cryogenic liquid to allow a thermally advantageous arrangement ,
  • the pre-stage pump 9 is preferably designed as a low-pressure pump, preferably for an operating pressure of not more than 1 0 bar.
  • Pre-stage pump 9 generates in particular when conveying the cryogenic
  • Buffer device compared to the container 1 has an overpressure.
  • the buffer memory 1 1 is designed deflectable example by means
  • the deflection of the buffer memory 1 1 is preferably carried out without friction.
  • a check valve 1 0 are provided between the precursor pump 9 and buffer memory 1 1 . It is thus possible to maintain an overpressure on the suction side 7 of the removal pump 8, so that in particular in case of failure of the pre-stage pump 9 due to the stored energy is a reliable supply to the sampling pump 8 allows. This is particularly advantageous in the removal of
  • Liquefied natural gas as fuel for an aircraft for example a
  • the pre-stage pump 9 and the removal pump 8 can for
  • This is in particular designed to process values of a measuring device, for example, for pressure or flow.
  • a measuring device for example, for pressure or flow.
  • the pressure on the suction side 7 of the removal pump 8 at least 2 bar, preferably not more than 6 bar, above the internal pressure of the container 1 for
  • the pressure difference between the container 1 and the buffer device, in particular the suction side 7 of the removal pump 8 can be adjusted as required in order to provide sufficient energy in the buffer device for use at a later time,
  • Take-off pump 8 can be a measuring device for the flow
  • the flow control 1 5 can in particular as
  • FIG. 3 shows a detailed view of a buffer store 11 according to FIG. 2.
  • the buffer store 11 can have a cover plate 19 and a base plate 20, which are connected by means of rods 21
  • Buffer memory 11 a buffer bellows 17 are arranged, which encloses a deflectable and therefore changeable Puffervoiumen.
  • springs 18 may be provided, which in turn are fixed to the cover plate 19 to at deflection of the
  • the deflection , the Pufferbaigs 17 is substantially frictionless.
  • the filling line 22 of the buffer memory 11 is preferably arranged at the lower end. It is also advantageous to arrange the withdrawal line 23 at the upper end in order to obtain a linear flow in the buffer bellows 17.
  • the buffer store 11 preferably has a flexible spiral tube 24 on the withdrawal line 23, so that the deflection of the buffer bellows 17 by the flexible spiral tube 24
  • the flexible spiral tube 24 can finally be connected to the suction side 7 of the removal pump 8.
  • the springs 18 are preferably designed such that by the restoring forces a pressure in the buffer memory 11 of at least 2 bar, preferably not more than 6 bar, can be generated via the internal pressure of the container 1,
  • the deflectable buffer memory 11 in the form of a buffer bellows 17 is in this case arranged in the interior of the pressure vessel 27.
  • the regulation of the pre-stage pump 9 and the removal pump 8 is preferably carried out as previously described. Since the spring force is replaced by gas pressure, is a
  • the compressed gas is preferably in a separate
  • Reservoir 28 held, preferably under high pressure.
  • the supplied gas into the pressure vessel can be reduced to the desired pressure, so as stored
  • the internal pressure in the pressure vessel 27 is preferably set slightly below the internal pressure of the buffer bellows 1 7.
  • the internal pressure of the buffer bellows 1 7 corresponds essentially to the pressure generated by the precursor pump 9, which can be determined by means of a pressure control 1 3, downstream of the precursor pump 9, the pressure control 30 of the pressure vessel 27 is advantageously carried out as a differential pressure control between
  • Precursor pump pressure determined by pressure control 1 3, and internal pressure in the pressure vessel 27, determined by pressure control 30.
  • the filling of the buffer bellows 1 7 can be adjusted by a level control 31, which in turn adjusts the internal pressure of the pressure vessel 27 by means of pressure control 30 or the precursor pump pressure influenced by pressure control 1 3.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention concerne un système pour alimenter une pompe en un liquide cryogène notamment en tant que combustible destiné à un aéronef. En tant que combustible cryogène est employé de préférence du gaz liquéfié tel que du gaz naturel liquéfié (GNL). Lors de l'aspiration de liquides cryogènes qui sont stockés sous la forme de liquides en ébullition, l'ébullition peut conduire à la formation de vapeur et ainsi à un rupture de liquide. Notamment lorsque du liquide cryogène est employé en tant que combustible pour aéronef, les turbulences qui surviennent pendant le vol altèrent la fiabilité de l'alimentation de la pompe. Pour permettre une alimentation fiable de la pompe et un stockage intermédiaire du liquide cryogène, entre un réservoir destiné au stockage du liquide cryogène et une pompe destinée au prélèvement du liquide cryogène, est intercalé un dispositif d'amortissement. Le système selon l'invention comprend également un dispositif pour augmenter la pression interne du réservoir et/ou la pression dans le dispositif d'amortissement.
PCT/EP2013/059555 2012-05-08 2013-05-08 Alimentation d'une pompe en liquide cryogène WO2013167638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012207576.3 2012-05-08
DE201210207576 DE102012207576A1 (de) 2012-05-08 2012-05-08 Versorgung einer Pumpe mit kryogener Flüssigkeit

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WO (1) WO2013167638A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131713A (en) 1960-03-22 1964-05-05 Herrick L Johnston Inc Pump for cryogenic liquids
US20020157402A1 (en) * 2000-10-13 2002-10-31 Drube Thomas K. Storage pressure and heat management system for bulk transfers of cryogenic liquids
US20100005812A1 (en) 2007-05-17 2010-01-14 The Boeing Company Thermodynamic pump for cryogenic fueled devices
WO2010151107A1 (fr) * 2009-06-25 2010-12-29 Ballast Nedam International Product Management B.V. Dispositif et procédé de distribution de gnl
WO2012045028A1 (fr) * 2010-09-30 2012-04-05 General Electric Company Système d'avion bicarburant et son procédé de fonctionnement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131713A (en) 1960-03-22 1964-05-05 Herrick L Johnston Inc Pump for cryogenic liquids
US20020157402A1 (en) * 2000-10-13 2002-10-31 Drube Thomas K. Storage pressure and heat management system for bulk transfers of cryogenic liquids
US20100005812A1 (en) 2007-05-17 2010-01-14 The Boeing Company Thermodynamic pump for cryogenic fueled devices
WO2010151107A1 (fr) * 2009-06-25 2010-12-29 Ballast Nedam International Product Management B.V. Dispositif et procédé de distribution de gnl
WO2012045028A1 (fr) * 2010-09-30 2012-04-05 General Electric Company Système d'avion bicarburant et son procédé de fonctionnement

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