WO2000031461A1 - Vorrichtung und verfahren zum umwandeln des boil-off-gases von kryo-kraftstofftanks - Google Patents
Vorrichtung und verfahren zum umwandeln des boil-off-gases von kryo-kraftstofftanks Download PDFInfo
- Publication number
- WO2000031461A1 WO2000031461A1 PCT/EP1999/008681 EP9908681W WO0031461A1 WO 2000031461 A1 WO2000031461 A1 WO 2000031461A1 EP 9908681 W EP9908681 W EP 9908681W WO 0031461 A1 WO0031461 A1 WO 0031461A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gas
- valve
- boil
- pressure
- conversion unit
- Prior art date
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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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
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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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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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
- 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
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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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0391—Thermal insulations by vacuum
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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
- 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
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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
- 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
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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
- 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
- F17C2205/0326—Valves electrically actuated
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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
- 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
- F17C2205/0332—Safety valves or pressure relief valves
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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
- 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
- F17C2205/0338—Pressure regulators
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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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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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
- 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
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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
- 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
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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
- 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
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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
- 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
- F17C2223/043—Localisation of the removal point in the gas
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/03—Control means
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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
- 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
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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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/07—Actions triggered by measured parameters
- F17C2250/072—Action when predefined value is reached
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/044—Avoiding pollution or contamination
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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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
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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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/03—Treating the boil-off
- F17C2265/031—Treating the boil-off by discharge
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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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/07—Generating electrical power as side effect
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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
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2900/00—Special features of, or arrangements for fuel supplies
- F23K2900/05001—Control or safety devices in gaseous or liquid fuel supply lines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the invention relates to an apparatus and a method for converting gases that escape from an overflow device of cryogenic fuel tanks.
- Devices of this type are used in particular in cryo-fuel tanks of vehicles which are operated, for example, with liquefied hydrogen or liquefied natural gas.
- the devices can also be used for stationary fuel tanks of cryogenic fuels and also for other tanks with flammable or otherwise dangerous or environmentally damaging evaporating media which can be defused by burning or other chemical-physical reactions.
- Cryogenic fuels include cryogenic liquid hydrogen or natural gas.
- Vacuum-insulated pressure vessels are preferably used to store the cryogenic fuel.
- Vacuum-insulated pressure vessels usually consist of an outer and an inner vessel.
- the cryogenic fuel is stored in the inner container.
- the inner container is connected to the outer container via a suspension.
- piping is provided, which is led from the inner container through the outer container to the environment.
- heat enters the inner container via the inner container suspension and the piping.
- the cryogenic liquid fuel is heated and partially evaporated, as a result of which the internal pressure of the fuel tank rises.
- An overflow device can be designed such that when it responds, a small amount of unburned cryogenic fuel, which corresponds to the amount evaporating due to the heat, is released to the environment.
- a small amount of unburned cryogenic fuel which corresponds to the amount evaporating due to the heat
- is released to the environment a small amount of unburned cryogenic fuel, which corresponds to the amount evaporating due to the heat
- Such an arrangement has disadvantages.
- First of all there may be a fire hazard in the vicinity of the cryogenic fuel tank due to the outflow of the unburned fuel.
- various cryogenic fuels, such as natural gas have considerable potential for damaging the atmosphere in their unburned state, so that unburned release to the environment is harmful to the environment.
- the object of the present invention is therefore to propose a device and a method for the safe conversion of the boil-off gas from cryogenic fuel tanks, which treats the boil-off gas to such an extent that there is neither fire risk nor relevant risk from the gas flowing out of the overflow device Atmospheric damage.
- the device In vehicles equipped with cryogenic fuel tanks, the device should be independent of other elements of the vehicle, in particular the on-board battery.
- This object is achieved according to the invention by a device for converting the boil-off gas from cryogenic fuel tanks, which has at least one shut-off, externally operated valve and a gas conversion unit, both of which are connected to a control device.
- the gas conversion unit the gas is converted chemically, preferably catalytically, or burned with a flame. This prevents the relevant damage to the atmosphere and the environment from being exposed to fire.
- a pressure reducer is connected upstream of the valve. This reduces the pressure upstream of the valve and thus reduces the actuation energy required to switch the valve.
- an overflow valve is connected upstream of the valve. With this valve, boil-off gas can be removed from the fuel tank and its pressure reduced at the same time.
- a buffer container can be arranged between the overflow valve or the pressure reducer.
- the valve of the device according to the invention is highly sealed to the environment and requires a low actuation energy. This applies in particular if the valve is a solenoid valve according to a further teaching of the invention.
- the use of a solenoid valve with pilot control is particularly advantageous.
- the gas conversion unit has an energy converter. So the energy made available by the energy converter can be used to convert
- the energy obtained can be used to keep the valve open.
- the gas conversion unit contains a fuel cell.
- the gas conversion unit has an ignition electrode and a burner. When the boil-off gas is burned, the energy can then be converted by means of at least one thermocouple.
- control device of the gas conversion unit is provided with an autonomous auxiliary energy store.
- an auxiliary energy store makes the gas conversion unit independent of the other elements of the vehicle, in particular the on-board battery, when used in suitably equipped vehicles. This is particularly advantageous if the reason for decommissioning the vehicle when the fuel tank is full is a repair visit in which the on-board battery must be removed. In such a case, one would be connected to the on-board battery
- auxiliary energy store is particularly expedient if its energy content allows at least one complete tank filling to be implemented in the gas conversion unit.
- the self-sufficient auxiliary energy store can advantageously be charged via an energy converter of the gas conversion unit.
- the auxiliary energy storage preferably consists of a dry accumulator or a high-capacity capacitor.
- control unit has an ignition device.
- the boil-off gas is fed via a shut-off, externally operated valve to a gas conversion unit in which the boil-off gas is chemically converted and / or burned, whereby the gas conversion unit is activated by a control unit.
- the chemical gas conversion is preferably carried out chemically and physically with the aid of a catalyst.
- control unit activates the gas conversion unit after a pressure switch switches at a fixed upper switching pressure.
- This fixed switching pressure can be a certain tank pressure or a fixed pressure behind the overflow valve.
- a pressure reducer upstream of the valve is controlled by the back pressure.
- the boil-off gas is reduced to a low admission pressure upstream of the valve.
- the boil-off gas can also be supplied to the valve via an overflow valve controlled by the upstream pressure.
- the conversion of the gas in the gas conversion unit can be monitored.
- the gas ionization process is suitable for this when the gas is burned.
- the monitoring of the gas conversion can advantageously be used during the combustion of the gas to determine how long ignition energy must be supplied to the gas conversion unit in order to ignite the combustion.
- Fig. 1 shows a first embodiment of the invention and schematic representation
- Fig. 2 shows a further embodiment of the invention schematic representation.
- a fuel tank 1 shows, in a first embodiment of the invention, a fuel tank 1, a pressure reducer 2, a valve 3, preferably designed as a solenoid valve, and a gas conversion unit 4.
- the vacuum-insulated fuel tank 1 is connected to the pressure reducer 2 via a line.
- the valve 3 is connected downstream of the pressure reducer 2 via a further line in the flow direction. From the valve 3, a line continues to lead to the flow direction
- Gas conversion unit 4 which is shown in FIG. 1 and in this respect preferred exemplary embodiments is shown as a combustion unit.
- the gas conversion unit 4 contains a thermocouple 5 as an energy converter, an ignition electrode 6 and a burner 7.
- the thermocouple 5 and the ignition electrode 6 are connected to the control device 8 via cables.
- the burner 7 is connected to the line leading from the valve 3 to the gas conversion unit 4.
- the control device 8 consists of an ignition device 9 and a
- the ignition electrode 6 is connected to the ignition device 9 and the thermocouple 5 to the auxiliary energy store 10 of the control device 8.
- the auxiliary energy store 10 is electrically connected to the ignition device 9 and the valve 3 via a pressure switch 11.
- the pressure switch 11 is connected with its pressure side to the line between the fuel tank 1 and the pressure reducer 2. 2 shows a further embodiment of the device using the same reference numerals for corresponding components.
- the vacuum-insulated fuel tank 1 is connected via a line to an overflow valve 12, from which a line leads to the valve 3 and to a buffer tank 13.
- thermocouple 5 The line from the valve 3 to the gas conversion unit 4 and the configuration of the gas conversion unit 4, the thermocouple 5, the ignition electrode 6 and the control device 8 correspond to FIG. 1.
- the pressure switch 11 is connected with its pressure side to the line from the overflow valve 12 to the valve 3.
- the fuel stored therein is vaporized by the incidence of heat in the fuel tank 1. As a result of this evaporation, the pressure in the fuel tank 1 rises. When the pressure in the fuel tank 1 reaches a predetermined switching pressure, the pressure switch 11 closes. Energy is removed from the auxiliary energy store 10 by closing the pressure switch 11, and the valve 3 is thus opened.
- valve 3 When the valve 3 is open, there is a pressure drop between the fuel tank 1, which has a high pressure level due to the vaporized fuel, and the burner 7 of the gas conversion unit 4, which is essentially at atmospheric pressure.
- the boil-off gas flows from the fuel tank 1 via the pressure reducer 2 through the valve 3 to the burner 7 of the gas conversion unit 4.
- the pressure of the outflowing boil-off gas in the pressure reducer 2 is reduced.
- the ignition device 9 is activated.
- the ignition device 9 takes energy from the auxiliary energy store 10 and ignites the ignition electrode 6.
- the gas flowing out of the burner 7 of the gas conversion unit 4 is ignited and burned by the ignition electrode 6.
- thermocouple 5 generates energy for charging the auxiliary energy store 10 during the combustion.
- the pressure switch 11 opens and thus interrupts the energy supply to the valve 3 and the ignition device 9.
- the valve 3 closes and interrupts the gas supply to the gas conversion unit 4.
- the fuel stored in the fuel tank 1 is vaporized by the heat and thus increases the pressure in the fuel tank 1.
- the pressure switch 11 closes and connects the auxiliary energy store 10 to the valve 3 and the ignition device 9. This opens the valve 3 and that from the burner 7 of the gas conversion unit 4 flowing boil-off gas ignited by means of the ignition electrode 6, as explained in the description of FIG. 1.
- the valve 3 closes and cuts off the gas supply to the gas conversion unit 4.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99955976A EP1137895A1 (de) | 1998-11-26 | 1999-11-11 | Vorrichtung und verfahren zum umwandeln des boil-off-gases von kryo-kraftstofftanks |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19854581.9 | 1998-11-26 | ||
DE19854581A DE19854581A1 (de) | 1998-11-26 | 1998-11-26 | Vorrichtung und Verfahren zum Umwandeln des Boil-Off-Gases von Kryo-Kraftstofftanks |
Publications (1)
Publication Number | Publication Date |
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WO2000031461A1 true WO2000031461A1 (de) | 2000-06-02 |
Family
ID=7889105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/008681 WO2000031461A1 (de) | 1998-11-26 | 1999-11-11 | Vorrichtung und verfahren zum umwandeln des boil-off-gases von kryo-kraftstofftanks |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1137895A1 (de) |
DE (1) | DE19854581A1 (de) |
WO (1) | WO2000031461A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7008219B2 (en) * | 2001-08-09 | 2006-03-07 | Honda Giken Kogyo Kabushiki Kaisha | Boil-off gas processing system using electric heater |
US10590866B2 (en) | 2015-11-13 | 2020-03-17 | Volvo Truck Corporation | Method and an apparatus for controlling an internal combustion engine with a high pressure gas injection |
FR3137670A1 (fr) * | 2022-07-08 | 2024-01-12 | Airbus Operations (S.A.S.) | Système anti-surpression pour réservoir cryogénique. |
EP4417863A1 (de) * | 2023-02-20 | 2024-08-21 | MAGNA Energy Storage Systems GesmbH | Kryotankvorrichtung mit einem boil-off-managementsystem |
Families Citing this family (15)
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DE10202165B4 (de) * | 2002-01-22 | 2014-08-21 | Bayerische Motoren Werke Aktiengesellschaft | Kraftfahrzeug mit einem Kryotank |
DE10238856A1 (de) * | 2002-08-24 | 2004-03-04 | Bayerische Motoren Werke Ag | Verfahren zum Entleeren eines Kryotanks |
DE10304165A1 (de) * | 2003-02-03 | 2004-08-05 | Bayerische Motoren Werke Ag | Kryotanksystem mit einer Verwertungseinheit für abgeblasenes Gas |
DE10310319A1 (de) * | 2003-03-10 | 2004-09-23 | Bayerische Motoren Werke Ag | Kraftstoffbehälter für kryogen gespeicherten Kraftstoff |
DE102004005305A1 (de) * | 2004-02-03 | 2005-08-11 | Linde Ag | Verfahren zum Rückverflüssigen eines Gases |
DE102004035319A1 (de) * | 2004-07-21 | 2006-02-16 | Bayerische Motoren Werke Ag | Kryotankanlage, insbesondere für ein Kraftfahrzeug |
DE102004045267A1 (de) * | 2004-09-17 | 2006-03-23 | Bayerische Motoren Werke Ag | Vorrichtung zum Umwandeln des Boil-Off-Gases eines Kryo-Kraftstofftanks |
DE102006009081A1 (de) * | 2006-02-28 | 2007-08-30 | Bayerische Motoren Werke Ag | Vorrichtung zum Umwandeln des Boil-Off-Gases eines Kryo-Kraftstofftanks |
WO2007098847A1 (de) | 2006-02-28 | 2007-09-07 | Bayerische Motoren Werke Aktiengesellschaft | Kraftfahrzeug mit einem mit tiefkalt gespeichertem kraftstoff betriebenen aggregat |
DE102006025658B4 (de) * | 2006-06-01 | 2022-10-06 | Cryomotive GmbH | Verfahren zum Betrieb einer Vorrichtung zur kryogenen Speicherung von Kraftstoff |
ITMI20090418A1 (it) * | 2009-03-18 | 2010-09-19 | C S M Compagnia San Marco S R L | Dispositivo di sicurezza da applicare alla valvola di sicurezza di un serbatoio per gas infiammabile compresso |
GB201121931D0 (en) | 2011-12-20 | 2012-02-01 | Mann Christopher M | Self contained,standalone,liquid methane storage system |
DE102016209426A1 (de) | 2015-07-07 | 2017-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Regeneration eines katalytischen Brennstoff-Konverters |
EP3649002B1 (de) | 2017-07-05 | 2021-03-31 | Volvo Truck Corporation | Gastankanordnung für einen verbrennungsmotor |
DE102018129507A1 (de) * | 2018-11-23 | 2020-05-28 | Volkswagen Aktiengesellschaft | Vorrichtung und Verfahren zur Emissionsregelung eines Kraftfahrzeuges |
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GB2079429A (en) * | 1980-06-19 | 1982-01-20 | Deutsche Forsch Luft Raumfahrt | Storage of liquid hydrogen |
US5540208A (en) * | 1994-09-13 | 1996-07-30 | Nabco Limited | Liquefied gas fuel supply system |
DE19533863A1 (de) * | 1995-09-13 | 1997-03-20 | Bayerische Motoren Werke Ag | Brennstoffversorgungsanlage |
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US4484458A (en) * | 1983-11-09 | 1984-11-27 | Air Products And Chemicals, Inc. | Apparatus for condensing liquid cryogen boil-off |
DE4029715A1 (de) * | 1990-09-19 | 1992-03-26 | Zink John Gmbh | Fackelbrenner |
-
1998
- 1998-11-26 DE DE19854581A patent/DE19854581A1/de not_active Ceased
-
1999
- 1999-11-11 EP EP99955976A patent/EP1137895A1/de not_active Withdrawn
- 1999-11-11 WO PCT/EP1999/008681 patent/WO2000031461A1/de not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2079429A (en) * | 1980-06-19 | 1982-01-20 | Deutsche Forsch Luft Raumfahrt | Storage of liquid hydrogen |
US5540208A (en) * | 1994-09-13 | 1996-07-30 | Nabco Limited | Liquefied gas fuel supply system |
DE19533863A1 (de) * | 1995-09-13 | 1997-03-20 | Bayerische Motoren Werke Ag | Brennstoffversorgungsanlage |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7008219B2 (en) * | 2001-08-09 | 2006-03-07 | Honda Giken Kogyo Kabushiki Kaisha | Boil-off gas processing system using electric heater |
US10590866B2 (en) | 2015-11-13 | 2020-03-17 | Volvo Truck Corporation | Method and an apparatus for controlling an internal combustion engine with a high pressure gas injection |
FR3137670A1 (fr) * | 2022-07-08 | 2024-01-12 | Airbus Operations (S.A.S.) | Système anti-surpression pour réservoir cryogénique. |
EP4417863A1 (de) * | 2023-02-20 | 2024-08-21 | MAGNA Energy Storage Systems GesmbH | Kryotankvorrichtung mit einem boil-off-managementsystem |
Also Published As
Publication number | Publication date |
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DE19854581A1 (de) | 2000-06-08 |
EP1137895A1 (de) | 2001-10-04 |
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