EP3449171A1 - Hydrogen filling station with liquid hydrogen - Google Patents

Hydrogen filling station with liquid hydrogen

Info

Publication number
EP3449171A1
EP3449171A1 EP17718021.3A EP17718021A EP3449171A1 EP 3449171 A1 EP3449171 A1 EP 3449171A1 EP 17718021 A EP17718021 A EP 17718021A EP 3449171 A1 EP3449171 A1 EP 3449171A1
Authority
EP
European Patent Office
Prior art keywords
storage tank
pump
liquid hydrogen
gas
hydrogen
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Withdrawn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
EP17718021.3A
Other languages
German (de)
French (fr)
Inventor
Wilfried-Henning Reese
Tobias Kederer
Martin BRÜCKLMEIER
Roland Szardenings
Simon Schäfer
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP3449171A1 publication Critical patent/EP3449171A1/en
Withdrawn legal-status Critical Current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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • 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
    • F17C13/001—Thermal insulation specially adapted for cryogenic 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • 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
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • 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
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0308—Radiation shield
    • F17C2203/032—Multi-sheet layers
    • 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
    • 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
    • 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
    • F17C2205/0352—Pipes
    • 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
    • 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
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2223/036—Very high pressure (>80 bar)
    • 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
    • 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
    • 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
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0339—Heat exchange with the fluid by cooling using the same 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
    • F17C2227/0381—Localisation of heat exchange in or on a vessel in wall contact integrated in the wall
    • 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
    • F17C2250/0439—Temperature
    • 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
    • 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
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/033—Treating the boil-off by recovery with cooling
    • F17C2265/034—Treating the boil-off by recovery with cooling with condensing the gas phase
    • 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
    • F17C2265/065—Fluid distribution for refuelling vehicle fuel tanks
    • 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
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • 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 a supply device of a filling station for liquid hydrogen comprising at least one storage tank and at least one pump and a method for setting up and operating such a supply device.
  • Supply facilities for gas stations usually have a storage or storage tank and a pump to remove the fluid from the storage tank and / or to increase the pressure of the fluid for refueling.
  • the storage tank or tanks are connected to the pump via a pipeline. This is usually interrupted by shut-off or control valves and control valves.
  • the connection between the components, in particular between the storage tank and the pump is usually made only in the on-site installation.
  • the pipeline In order to be able to assemble, the pipeline must have a certain length so that the pipeline is accessible so that at least one technician is able to work on the connection between the storage tank and the pump. In addition, it must be ensured that valves and other components can be checked and replaced if necessary.
  • Boil-off gas a gas phase (hereinafter also referred to as Boil-off gas) which may lead, inter alia, to an increase in pressure in the system, product loss or damage to the subsequent components of the supply device, in particular the pump ,
  • Heat inputs may also be generated by the heat conduction of the components of valves and other instruments, such as temperature or pressure sensors, which communicate with both the environment and the interior of a fluid conduit or directly with the fluid conduit or fluid compartment within a storage tank keep in touch.
  • the object of the present invention is to provide a device and a method for reducing the heat input into the supply device of a filling station for liquid hydrogen. This object is achieved in that the storage tank and the pump are directly connected. Between the outer shell of the storage tank and the pump advantageously no valves or instruments are mounted, which the pipeline between the output from the storage tank and the
  • Storage tank and pump between 0.01 and 3 m, in particular between 0.5 and 1 m and more preferably between 0.63 and 0.78 m.
  • the connection between storage tank and pump, so the discharge line for the liquid, especially for liquid hydrogen, is to be kept as short as possible. The shorter the discharge line, the less heat can be entered into the supply device.
  • the discharge line that is to say the line which in particular conducts the liquid hydrogen from the storage tank to the pump, is preferably 0.63 m long.
  • cold boil-off gas is returned to the storage tank.
  • This return line is preferably 0.78 m long.
  • the storage tank advantageously consists of a thermally insulated area which surrounds a fluid container.
  • the storage tank and thus also the fluid container are preferably designed such that liquid hydrogen can be stored therein.
  • Liquid level forms a gas phase of hydrogen.
  • the thermally insulated area serves the temperature within the
  • the storage tank advantageously has a feed for liquid
  • This feed is advantageously übe shut-off and / or
  • Pressure retaining valves secured which are preferably integrated into the thermal insulated area.
  • the storage tank has temperature and pressure sensors and other safety devices.
  • Valves which are necessary for filling, degassing or shutting off a low-pressure chamber of the pump are advantageously integrated in the thermally insulated area of the storage tank. This offers the advantage that the existing there cold can also be used to cool the valves.
  • These valves also make it possible to isolate the storage tank from the pump. This may be necessary in particular when the storage tank is being filled or the pump is being serviced.
  • Operating elements such as levers and indicators of the valves and sensors, which are advantageously integrated into the thermally insulated area, are in contact with the surroundings of the storage tank and, like pipelines, contribute to the heat transfer into the fluid area of the storage tank or via the heat transfer thermally isolated area is registered.
  • Storage tanks protrude into a fluid region of the storage tank, connected within the thermally insulated area with an intermediate cooling.
  • the intercooling may be configured to bypass a conduit within the thermally-isolated area but proximate the outer wall of the storage tank to the heat-conducting components of the valves or sensors.
  • the tubing may also be passed around these components in one or more turns.
  • boil-off gas a gas produced by boil off losses
  • the boil-off gas is advantageously from the gas range of
  • This pipe is preferably also disposed within the thermally insulated area, so this is also cooled.
  • Boil-off gas is produced by heat input into the storage tank and, above all, by the evaporation of the liquid hydrogen. Boil-off gas must be removed from the storage tank to avoid an increase in pressure. However, the boil-off gas is at a cold temperature similar to that of the liquid hydrogen and can thus be used for cooling.
  • the boil-off gas is first used to cool the thermally-isolated area and the equipment disposed therein, but may be drained from the storage tank after cooling to cool down subsequent components of the gas station be used. This optimizes the thermodynamic efficiency of the entire system, ie the gas station.
  • the boil-off gas can be cooled and / or liquefied again and returned to the storage tank.
  • the boil-off gas can also be discarded in another embodiment and discharged, for example, to the environment or burned.
  • the pump is advantageously designed so that it can be used to convey and / or compress liquid hydrogen.
  • the pump is particularly preferred both for the promotion of hydrogen and for its compression, ie for
  • Hydrogen advantageously at 50 to 1000 bar, in particular 350 to 500 bar or 700 or 900 bar.
  • the pump in particular a low pressure region of the pump, within the thermally insulated area of the storage tank or directly into the fluid container of the
  • the liquid hydrogen is preferably stored and / or promoted at a temperature of from 20 K to 27.5 K, in particular from 22.5 K to 24 K.
  • a temperature of 20 K to 27.5 K prevails and outside usually ambient temperature is present.
  • An advantage of the immediate connection of the storage tank with the pump is in particular that the installation area is reduced.
  • the assembly usually has to be advantageously carried out at a different location, this offers the additional advantage that better possibilities of insulation exist in a factory.
  • it can be ensured that, in particular, the transitions of the thermal insulation areas between the storage tank, the pump and the connecting pipeline are designed without errors. It can even be created a common insulation cover of a continuous material. This significantly reduces the heat input. It prevents a boil-off gas in the connecting line between the storage tank and the pump arises and this gas causes damage to the pump, in particular by
  • Pre-assembly in a factory can also reduce assembly time at the site, which in turn leads to cost savings.
  • Pre-assembly is especially helpful if the
  • Supply device is to be installed underground and the accessibility is further restricted as in an above-ground installation.
  • the supply device is primarily for gas stations to supply
  • FIG. 1 shows a schematic embodiment of the invention
  • the storage tank 1 and the pump 2 are preferably parts of a filling station for hydrogen for refueling vehicles.
  • the storage tank 1 is composed of a thermally insulated area 3 and a fluid container 4.
  • the fluid container is designed for storing liquefied hydrogen, wherein a hydrogen-containing gas atmosphere is established above the liquid level.
  • the thermally insulated region 3 is in this embodiment by a
  • the storage tank 1 has a supply line 5 for a liquid, in this example liquid hydrogen.
  • the supply line 5 is secured, inter alia, via shut-off and pressure holding valves.
  • the storage tank 1 is connected via the discharge line 6 for liquid hydrogen with the pump 2 in combination.
  • the pump 2 is preferably a
  • the discharge line 6 is secured, inter alia, via shut-off and pressure holding valves. Recycled and cooled Boil-off gas is returned in this embodiment via the return 7 in the storage tank 1 and either used directly for cooling or out in the gas area at the head of the fluid container 4. As a result, cooling of the gas region at the head of the fluid container 4 can be achieved and / or the pressure can be influenced.
  • the length of the discharge line 6 is in the illustrated embodiment 0.63 m between storage tank 1 and pump 2. By this close distance is

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Abstract

The invention relates to a supply device and a method for building and operating a supply device of a filling station for liquid hydrogen, comprising at least one storage tank (1) for liquid hydrogen, and at least one pump (2) for liquid hydrogen, said storage tank (1) and pump (2) being directly interconnected.

Description

Beschreibung  description
Wasserstofftankstelle mit flüssigem Wasserstoff Hydrogen station with liquid hydrogen
Die Erfindung betrifft eine Versorgungseinrichtung einer Tankstelle für flüssigen Wasserstoff umfassend mindestens einen Speichertank und mindestens eine Pumpe sowie ein Verfahren zum Aufbau und Betrieb einer solchen Versorgungseinrichtung. The invention relates to a supply device of a filling station for liquid hydrogen comprising at least one storage tank and at least one pump and a method for setting up and operating such a supply device.
Versorgungseinrichtungen für Tankstellen weisen in der Regel einen Vorrats- oder Speichertank auf und eine Pumpe um das Fluid aus dem Speichertank zu entnehmen und/oder um den Druck des Fluides für die Betankung zu erhöhen. Supply facilities for gas stations usually have a storage or storage tank and a pump to remove the fluid from the storage tank and / or to increase the pressure of the fluid for refueling.
Der oder die Speichertanks sind mit der Pumpe über eine Rohrleitung verbunden. Diese ist in der Regel durch Absperr- oder Regelventile und Kontrollarmaturen unterbrochen. Die Verbindung zwischen den Bauteilen, insbesondere zwischen dem Speichertank und der Pumpe wird in der Regel erst bei der Vorortinstallation hergestellt. The storage tank or tanks are connected to the pump via a pipeline. This is usually interrupted by shut-off or control valves and control valves. The connection between the components, in particular between the storage tank and the pump is usually made only in the on-site installation.
Um eine Montage gewährleisten zu können, muss die Rohrleitung eine gewisse Länge aufweisen, damit die Rohrleitung zugänglich ist so dass mindestens ein Techniker in der Lage ist an der Verbindung zwischen Speichertank und Pumpe zu arbeiten. Zudem muss gewährleistet werden, dass Ventile und sonstige Bauteile überprüft und gegebenenfalls getauscht werden können. In order to be able to assemble, the pipeline must have a certain length so that the pipeline is accessible so that at least one technician is able to work on the connection between the storage tank and the pump. In addition, it must be ensured that valves and other components can be checked and replaced if necessary.
Trotz einer Isolierung der Rohrleitung ergibt sich der Nachteil, dass je länger die Rohrleitung ist desto mehr Wärme in das System eingetragen wird. Durch den Wärmeeintrag bei flüssigem Wasserstoff entsteht durch Abdampfverluste eine Gasphase (im Folgenden auch als Boil-Off-Gas bezeichnet) welche unter anderem zu einer Druckerhöhung in der Anlage, zu Produktverlusten oder zu Schäden an den nachfolgenden Bestandteilen der Versorgungseinrichtung, insbesondere der Pumpe führen kann. Despite insulation of the pipeline, there is the disadvantage that the longer the pipeline, the more heat is introduced into the system. Due to the heat input in liquid hydrogen produced by Abdampfverluste a gas phase (hereinafter also referred to as Boil-off gas) which may lead, inter alia, to an increase in pressure in the system, product loss or damage to the subsequent components of the supply device, in particular the pump ,
Wärmeeinträge können auch durch die Wärmeleitung der Bestandteile von Ventilen und anderen Instrumenten, beispielsweise Temperatur oder Drucksensoren, entstehen, welche sowohl mit der Umgebung als auch mit dem Inneren einer Rohrleitungen für das Fluid oder direkt mit der Rohrleitung für die Fluide oder dem Fluidbereich innerhalb eines Speichertanks in Verbindung stehen. Aufgabe der vorliegenden Erfindung ist es eine Vorrichtung und ein Verfahren anzugeben um den Wärmeeintrag in die Versorgungseinrichtung einer Tankstelle für flüssigen Wasserstoff zu verringern. Diese Aufgabe wird dadurch gelöst, dass der Speichertank und die Pumpe unmittelbar miteinander verbunden sind. Zwischen der Außenhülle des Speichertanks und der Pumpe sind vorteilhafterweise keine Ventile oder Instrumente angebracht, welche die Rohrleitung zwischen dem Ausgang aus dem Speichertank und dem Heat inputs may also be generated by the heat conduction of the components of valves and other instruments, such as temperature or pressure sensors, which communicate with both the environment and the interior of a fluid conduit or directly with the fluid conduit or fluid compartment within a storage tank keep in touch. The object of the present invention is to provide a device and a method for reducing the heat input into the supply device of a filling station for liquid hydrogen. This object is achieved in that the storage tank and the pump are directly connected. Between the outer shell of the storage tank and the pump advantageously no valves or instruments are mounted, which the pipeline between the output from the storage tank and the
Niederdruckbereich der Pumpe unterbrechen könnten. Low pressure range of the pump could interrupt.
Vorteilhafterweise beträgt die Rohrleitungslänge der Verbindung zwischen Advantageously, the pipe length of the connection between
Speichertank und Pumpe zwischen 0,01 und 3 m, insbesondere zwischen 0,5 und 1 m und besonders bevorzugt zwischen 0,63 und 0,78 m. Die Verbindung zwischen Speichertank und Pumpe, also die Abführleitung für die Flüssigkeit, insbesondere für flüssigen Wasserstoff, ist so kurz wie möglich zu halten. Desto kürzer die Abführleitung ist, desto weniger Wärme kann in die Versorgungseinrichtung eingetragen werden. Storage tank and pump between 0.01 and 3 m, in particular between 0.5 and 1 m and more preferably between 0.63 and 0.78 m. The connection between storage tank and pump, so the discharge line for the liquid, especially for liquid hydrogen, is to be kept as short as possible. The shorter the discharge line, the less heat can be entered into the supply device.
Die Abführleitung, also die Leitung welche insbesondere den flüssigen Wasserstoff aus dem Speichertank hin zur Pumpe leitet ist bevorzugt 0,63 m lang. The discharge line, that is to say the line which in particular conducts the liquid hydrogen from the storage tank to the pump, is preferably 0.63 m long.
Vorteilhafterweise wird kaltes Boil-Off-Gas in den Speichertank zurückgeführt. Diese Rückführleitung ist bevorzugt 0,78 m lang. Advantageously, cold boil-off gas is returned to the storage tank. This return line is preferably 0.78 m long.
Der Speichertank besteht vorteilhafterweise aus einem thermisch isoliertem Bereich welcher einen Fluidbehälter umgibt. The storage tank advantageously consists of a thermally insulated area which surrounds a fluid container.
Der Speichertank und damit auch der Fluidbehälter sind bevorzugt so ausgestaltet, dass darin flüssiger Wasserstoff gespeichert werden kann. Oberhalb des  The storage tank and thus also the fluid container are preferably designed such that liquid hydrogen can be stored therein. Above the
Flüssigkeitsspiegels bildet sich eine Gasphase des Wasserstoffs. Liquid level forms a gas phase of hydrogen.
Der thermisch isolierte Bereich, dient dazu die Temperatur innerhalb des  The thermally insulated area, serves the temperature within the
Fluidbehälters konstant zu halten. Als Isolationsmaterial kann eine Schüttung eingefüllt werden, der Bereich kann evakuiert sein oder aus unterschiedlichen Schichtmaterialien bestehen. Auch eine Kombination verschiedener Isolationstechniken ist denkbar. Der Speichertank verfügt vorteilhafterweise über eine Zuführung für flüssigen Keep fluid container constant. As insulation material, a bed can be filled, the area may be evacuated or consist of different layer materials. A combination of different isolation techniques is conceivable. The storage tank advantageously has a feed for liquid
Wasserstoff. Diese Zuführung ist vorteilhaftweise übe Absperr- und/oder Hydrogen. This feed is advantageously übe shut-off and / or
Druckhalteventile abgesichert, welche bevorzugt in den thermische isolierten Bereich integriert sind. In einer bevorzugten Ausgestaltung verfügt der Speichertank über Temperatur- und Drucksensoren sowie weitere Sicherheitsvorrichtungen. Ventile, welche zum Füllen, Entgasen oder Absperren eines Niederdruckraumes der Pumpe notwendig sind, sind vorteilhafterweise in den thermisch isolierten Bereich des Speichertanks integriert. Dies bietet den Vorteil, dass die dort vorhandene Kälte auch zur Kühlung der Ventile verwendet werden kann. Durch diese Ventile ist es zudem möglich den Speichertank von der Pumpe zu isolieren. Dies kann insbesondere dann notwendig sein, wenn der Speichertank befüllt wird oder die Pumpe gewartet wird. Bedienungselemente, wie Hebel und Anzeigen der Ventile und Sensoren, welche vorteilhafterweise in den thermisch isolierten Bereich integriert sind, stehen mit der Umgebung des Speichertanks in Kontakt und tragen ebenso wie Rohrleitungen dazu bei dass über eine Wärmeleitung Wärme in den Fluidbereich des Speichertanks bzw. in den thermisch isolierten Bereich eingetragen wird. Pressure retaining valves secured, which are preferably integrated into the thermal insulated area. In a preferred embodiment, the storage tank has temperature and pressure sensors and other safety devices. Valves which are necessary for filling, degassing or shutting off a low-pressure chamber of the pump are advantageously integrated in the thermally insulated area of the storage tank. This offers the advantage that the existing there cold can also be used to cool the valves. These valves also make it possible to isolate the storage tank from the pump. This may be necessary in particular when the storage tank is being filled or the pump is being serviced. Operating elements, such as levers and indicators of the valves and sensors, which are advantageously integrated into the thermally insulated area, are in contact with the surroundings of the storage tank and, like pipelines, contribute to the heat transfer into the fluid area of the storage tank or via the heat transfer thermally isolated area is registered.
Deshalb sind bei einer bevorzugten Ausgestaltung der Versorgungseinrichtung Ventile und andere Instrumente des Speichertanks, welche von der Umgebung des  Therefore, in a preferred embodiment of the supply device valves and other instruments of the storage tank, which of the environment of the
Speichertanks in einen Fluidbereich des Speichertanks hineinragen, innerhalb des thermisch isolierten Bereichs mit einer Zwischenkühlung verbunden. Storage tanks protrude into a fluid region of the storage tank, connected within the thermally insulated area with an intermediate cooling.
Die Zwischenkühlung kann so ausgestaltet sein, dass eine Rohrleitung innerhalb des thermisch isolierten Bereichs, jedoch in der Nähe der Außenwand des Speichertanks an den wärmeleitenden Bestandteilen der Ventile oder Sensoren vorbeigeleitet wird. Die Rohrleitung kann auch in einer oder mehreren Windungen um diese Bestandteile herumgeführt werden. The intercooling may be configured to bypass a conduit within the thermally-isolated area but proximate the outer wall of the storage tank to the heat-conducting components of the valves or sensors. The tubing may also be passed around these components in one or more turns.
Vorteilhafterweise wird ein durch Abdampfverluste entstandenes Gas (Boil-Off-Gas) zur Zwischenkühlung von Ventilen und des thermisch isolierten Bereiches verwendet. Das Boil-Off-Gas wird vorteilhafterweise aus dem Gasbereich des  Advantageously, a gas produced by boil off losses (boil-off gas) is used for the intercooling of valves and the thermally insulated area. The boil-off gas is advantageously from the gas range of
Flüssigkeitsbehälters entnommen und durch eine Rohrleitung zur Zwischenkühlung geführt. Diese Rohrleitung ist bevorzugt ebenfalls innerhalb des thermisch isolierten Bereichs angeordnet, so wird auch dieser gekühlt. Removed liquid container and passed through a pipe for intercooling. This pipe is preferably also disposed within the thermally insulated area, so this is also cooled.
Boil-Off-Gas entsteht durch Wärmeeintrag in den Speichertank und vor allem durch das Verdampfen des flüssigen Wasserstoffs. Boil-Off-Gas muss aus dem Speichertank abgeführt werden um eine Druckerhöhung zu vermeiden. Das Boil-Off-Gas liegt jedoch bei einer kalten Temperatur ähnlich dem des flüssigen Wasserstoffs vor und kann somit zur Kühlung eingesetzt werden.  Boil-off gas is produced by heat input into the storage tank and, above all, by the evaporation of the liquid hydrogen. Boil-off gas must be removed from the storage tank to avoid an increase in pressure. However, the boil-off gas is at a cold temperature similar to that of the liquid hydrogen and can thus be used for cooling.
Das Boil-Off-Gas wird zuerst zur Kühlung des thermisch isolierten Bereichs und der darin angeordneten Apparaturen verwendet, kann jedoch nachdem es aus dem Speichertank abgeführt wird zur Kühlung nachfolgender Bestandteile der Tankstelle verwendet werden. Dadurch wird die thermodynamische Effizienz der Gesamtanlage, also der Tankstelle, optimiert. The boil-off gas is first used to cool the thermally-isolated area and the equipment disposed therein, but may be drained from the storage tank after cooling to cool down subsequent components of the gas station be used. This optimizes the thermodynamic efficiency of the entire system, ie the gas station.
Anschließend kann das Boil-Off-Gas wieder gekühlt und/oder verflüssigt werden und in den Speichertank zurückgeführt werden. Das Boil-Off-Gas kann in einer anderen Ausführungsvariante auch verworfen und beispielsweise an die Umgebung abgelassen oder verbrannt werden.  Subsequently, the boil-off gas can be cooled and / or liquefied again and returned to the storage tank. The boil-off gas can also be discarded in another embodiment and discharged, for example, to the environment or burned.
Die Pumpe ist vorteilhafterweise so ausgestaltet, dass damit flüssiger Wasserstoff gefördert und/oder verdichtet werden kann. Die Pumpe ist besonders bevorzugt sowohl zur Förderung von Wasserstoff als auch zu dessen Verdichtung, also zur The pump is advantageously designed so that it can be used to convey and / or compress liquid hydrogen. The pump is particularly preferred both for the promotion of hydrogen and for its compression, ie for
Druckerhöhung ausgestaltet. Die Pumpe erhöht den Druck des flüssigen Pressure increase designed. The pump increases the pressure of the liquid
Wasserstoffes vorteilhafterweise auf 50 bis 1000 bar, insbesondere 350 bis 500 bar oder 700 oder 900 bar. In einer anderen vorteilhaften Ausgestaltung der Versorgungseinrichtung ist die Pumpe, insbesondere ein Niederdruckbereich der Pumpe, innerhalb des thermisch isolierten Bereichs des Speichertanks oder direkt in den Fluidbehälter des Hydrogen advantageously at 50 to 1000 bar, in particular 350 to 500 bar or 700 or 900 bar. In another advantageous embodiment of the supply device, the pump, in particular a low pressure region of the pump, within the thermally insulated area of the storage tank or directly into the fluid container of the
Speichertanks montiert. Der flüssige Wasserstoff wird bevorzugt bei einer Temperatur von 20 K bis 27,5 K, insbesondere von 22,5 K bis 24 K gespeichert und/oder gefördert. Dies bedeutet, dass im Inneren des Speichertanks eine Temperatur von 20 K bis 27,5 K herrscht und außerhalb in der Regel Umgebungstemperatur vorliegt. Vorteilhaft an der unmittelbaren Verbindung des Speichertanks mit der Pumpe ist insbesondere, dass die Aufstellungsfläche verringert wird. Die Montage muss dazu in der Regel zwar vorteilhafterweise an einem anderen Ort durchgeführt werden, dies bietet jedoch den zusätzlichen Vorteil, dass in einer Fabrik bessere Möglichkeiten der Isolation bestehen. So kann gewährleistet werden, dass insbesondere die Übergänge der thermischen Isolationsbereiche zwischen Speichertank, Pumpe und der verbindenden Rohrleitung ohne Fehler ausgestaltet sind. Es kann sogar eine gemeinsame Isolationshülle aus einem durchgehenden Material geschaffen werden. Dadurch verringert sich der Wärmeeintrag wesentlich. Es wird verhindert, dass in der Verbindungsleitung zwischen dem Speichertank und der Pumpe ein Boil-Off-Gas entsteht und dieses Gas zu Schäden an der Pumpe, insbesondere durch Storage tanks mounted. The liquid hydrogen is preferably stored and / or promoted at a temperature of from 20 K to 27.5 K, in particular from 22.5 K to 24 K. This means that inside the storage tank a temperature of 20 K to 27.5 K prevails and outside usually ambient temperature is present. An advantage of the immediate connection of the storage tank with the pump is in particular that the installation area is reduced. Although the assembly usually has to be advantageously carried out at a different location, this offers the additional advantage that better possibilities of insulation exist in a factory. Thus, it can be ensured that, in particular, the transitions of the thermal insulation areas between the storage tank, the pump and the connecting pipeline are designed without errors. It can even be created a common insulation cover of a continuous material. This significantly reduces the heat input. It prevents a boil-off gas in the connecting line between the storage tank and the pump arises and this gas causes damage to the pump, in particular by
Blasenbildung oder Kavitation führt. Blistering or cavitation leads.
Durch die Vormontage in einer Fabrik, kann zudem die Montagezeit am Aufstellungsort verringert werden, was wiederum zu einer Kosteneinsparung führt.  Pre-assembly in a factory can also reduce assembly time at the site, which in turn leads to cost savings.
Eine Vormontage ist insbesondere auch dann hilfreich, wenn die Pre-assembly is especially helpful if the
Versorgungseinrichtung unterirdisch aufgestellt werden soll und die Zugänglichkeit noch weiter eingeschränkt ist wie bei einer oberirdischen Aufstellung.  Supply device is to be installed underground and the accessibility is further restricted as in an above-ground installation.
Die Versorgungseinrichtung ist vor allem für Tankstellen zur Versorgung von The supply device is primarily for gas stations to supply
Fahrzeugen mit Wasserstoff oder Erdgas anwendbar. Vehicles with hydrogen or natural gas applicable.
Im Folgenden soll die Erfindung anhand eines in der Figur 1 schematisch dargestellten Ausführungsbeispiels näher erläutert werden. Die Figur 1 zeigt eine schematische Ausgestaltung der erfindungsgemäßen In the following, the invention will be explained in more detail with reference to an exemplary embodiment shown schematically in FIG. FIG. 1 shows a schematic embodiment of the invention
Vorrichtung. Der Speichertank 1 und die Pumpe 2 sind bevorzugt Teile einer Tankstelle für Wasserstoff zur Betankung von Fahrzeugen.  Contraption. The storage tank 1 and the pump 2 are preferably parts of a filling station for hydrogen for refueling vehicles.
Der Speichertank 1 setzt sich aus einem thermisch isoliertem Bereich 3 und einem Fluidbehälter 4 zusammen. Der Fluidbehälter ist zur Speicherung von verflüssigtem Wasserstoff ausgestaltet, wobei sich oberhalb des Flüssigkeitsspiegels eine wasserstoffhaltige Gasatmosphäre einstellt.  The storage tank 1 is composed of a thermally insulated area 3 and a fluid container 4. The fluid container is designed for storing liquefied hydrogen, wherein a hydrogen-containing gas atmosphere is established above the liquid level.
Der thermisch isolierte Bereich 3 ist in diesem Ausführungsbeispiel durch eine  The thermally insulated region 3 is in this embodiment by a
Schüttung und ein angelegtes Vakuum isoliert. Alle Ventile und Sicherheits- und Regelungseinrichtungen des Speichertanks 1 sind so in den thermisch isolierten Bereich eingebracht, dass über die von außen zugänglichen Griffe, Hebel oderBed and an applied vacuum isolated. All valves and safety and control devices of the storage tank 1 are placed in the thermally insulated area that on the externally accessible handles, levers or
Anzeigen möglichst keine Wärme in den thermisch isolierten Bereich eingebracht wird. Dies wird insbesondere dadurch realisiert, dass kaltes Boil-off-Gas innerhalb des thermisch isolierten Bereiches 3 an den Ventilen vorbeigeführt wird, so dass diese gekühlt werden. Dies ist schematisch durch die Zwischenkühlung 9 an drei exemplarischen Positionen dargestellt. Wärmeeinträge über Ventilgriffe, Sensoren oder anderen Leitungen, welche von außen in den thermischen Bereich 3 eingeführt sind, werden so weitestgehend vermieden. Dass Boil-Off-Gas wird über die Abführung 8 aus dem Speicherbehälter ausgebracht. Das Boil-Off-Gas kann zur Kühlung von weiteren Anlagenteilen eingesetzt werden, verworfen werden oder wieder gekühlt werden. Der Speichertank 1 verfügt über eine Zuführleitung 5 für eine Flüssigkeit, in diesem Beispiel für flüssigen Wasserstoff. Die Zuführleitung 5 wird unter anderem über Absperr- und Druckhalteventile abgesichert. Ads as possible no heat is introduced into the thermally insulated area. This is realized, in particular, by passing cold boil-off gas within the thermally insulated area 3 past the valves, so that they are cooled. This is illustrated schematically by the intermediate cooling 9 at three exemplary positions. Heat inputs via valve handles, sensors or other lines, which are introduced from the outside into the thermal region 3, are as far as possible avoided. That boil-off gas is discharged via the discharge 8 from the storage tank. The boil-off gas can be used for cooling of other parts of the system, discarded or cooled again. The storage tank 1 has a supply line 5 for a liquid, in this example liquid hydrogen. The supply line 5 is secured, inter alia, via shut-off and pressure holding valves.
Der Speichertank 1 steht über die Abführleitung 6 für flüssigen Wasserstoff mit der Pumpe 2 in Verbindung. Bei der Pumpe 2 handelt es sich bevorzugt um eine  The storage tank 1 is connected via the discharge line 6 for liquid hydrogen with the pump 2 in combination. The pump 2 is preferably a
Kryopumpe zur Handhabung von flüssigem Wasserstoff. Cryopump for handling liquid hydrogen.
Die Abführleitung 6 ist unter anderem über Absperr- und Druckhalteventile abgesichert. Aufbereitetes und gekühltes Boil-Off-Gas wird in diesem Ausführungsbeispiel über die Rückführung 7 in den Speicherbehälter 1 zurückgeführt und entweder wieder direkt zur Kühlung verwendet oder in den Gasbereich am Kopf des Fluidbehälters 4 geführt. Dadurch kann eine Kühlung des Gasbereichs am Kopf des Fluidbehälters 4 erzielt werden und/oder der Druck beeinflusst werden.  The discharge line 6 is secured, inter alia, via shut-off and pressure holding valves. Recycled and cooled Boil-off gas is returned in this embodiment via the return 7 in the storage tank 1 and either used directly for cooling or out in the gas area at the head of the fluid container 4. As a result, cooling of the gas region at the head of the fluid container 4 can be achieved and / or the pressure can be influenced.
Die Länge der Abführleitung 6 beträgt in dem dargestellten Ausführungsbeispiel 0,63 m zwischen Speichertank 1 und Pumpe 2. Durch diesen engen Abstand wird The length of the discharge line 6 is in the illustrated embodiment 0.63 m between storage tank 1 and pump 2. By this close distance is
gewährleistet, dass ein möglichst geringer Wärmeeintrag erfolgt. ensures that the lowest possible heat input takes place.
Um den Montageaufwand vor Ort aufgrund des geringen Abstandes zu verringern, wird die Anlage vormontiert. Liste der Bezugszeichen: To reduce the assembly work on site due to the small distance, the system is pre-assembled. List of reference numbers:
1 Speichertank  1 storage tank
2 Pumpe  2 pump
3 Thermisch isolierter Bereich  3 thermally insulated area
4 Fluidbehälter  4 fluid containers
5 Zuführleitung Flüssigkeit  5 supply line liquid
6 Abführleitung Flüssigkeit  6 discharge line liquid
7 Rückführung Gas  7 return gas
8 Abführung Boil-off-Gas  8 exhaust boil-off gas
9 Zwischenkühlung  9 intercooling

Claims

Patentansprüche  claims
Versorgungseinrichtung einer Tankstelle für flüssigen Wasserstoff umfassend mindestens einen Speichertank (1 ) und mindestens eine Pumpe (2), dadurch gekennzeichnet, dass der Speichertank (1 ) und die Pumpe (2) unmittelbar miteinander verbunden sind. Supply device of a filling station for liquid hydrogen comprising at least one storage tank (1) and at least one pump (2), characterized in that the storage tank (1) and the pump (2) are directly connected.
Versorgungseinrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Rohrleitungslänge der Verbindung (6) zwischen Speichertank (1 ) und Pumpe (2) zwischen 0,01 und 3 m, insbesondere zwischen 0,5 und 1 m und besonders bevorzugt zwischen 0,63 und 0,78 m beträgt. Supply device according to claim 1, characterized in that the pipe length of the connection (6) between the storage tank (1) and pump (2) between 0.01 and 3 m, in particular between 0.5 and 1 m and more preferably between 0.63 and 0.78 m.
Versorgungseinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Ventile, welche insbesondere zum Füllen, Entgasen oder Absperren eines Niederdruckraumes der Pumpe (2) notwendig sind, in einen thermisch isolierten Bereich (3) des Speichertanks (1 ) integriert sind. Supply device according to claim 1 or 2, characterized in that valves, which are necessary in particular for filling, degassing or shutting off a low-pressure chamber of the pump (2), in a thermally insulated area (3) of the storage tank (1) are integrated.
Versorgungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch Supply device according to one of claims 1 to 3, characterized
gekennzeichnet, dass Ventile und andere Instrumente des Speichertanks (1 ), welche von der Umgebung des Speichertanks (1 ) in einen Fluidbereich des Speichertank (1 ) hineinragen, innerhalb des thermisch isolierten Bereichs (3) mit einer Zwischenkühlung (9) verbunden sind. in that valves and other instruments of the storage tank (1), which project from the environment of the storage tank (1) into a fluid region of the storage tank (1), are connected within the thermally insulated area (3) to an intermediate cooling system (9).
Verfahren zum Aufbau und Betrieb einer Versorgungseinrichtung einer Tankstelle für flüssigen Wasserstoff, umfassend mindestens einen Speichertank (1 ) für flüssigen Wasserstoff und mindestens eine Pumpe (2) für flüssigen Wasserstoff, dadurch gekennzeichnet, dass der Speichertank (1 ) und die Pumpe (2) unmittelbar miteinander verbunden sind. Method for constructing and operating a supply device for a liquid-gas filling station, comprising at least one storage tank (1) for liquid hydrogen and at least one pump (2) for liquid hydrogen, characterized in that the storage tank (1) and the pump (2) directly connected to each other.
Verfahren nach Anspruch 5 dadurch gekennzeichnet, dass ein durch A method according to claim 5, characterized in that a through
Abdampfverluste entstandenes Gas (Boil-Off-Gas) zur Zwischenkühlung von Ventilen und des thermisch isolierten Bereiches (3) verwendet wird. Verfahren nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass der flüssige Wasserstoff bei einer Temperatur von 21 ,5 K bis 27,5 K, insbesondere von 21 ,5 K bis 24 K gespeichert und/oder gefördert wird. Boil off gas is used for intermediate cooling of valves and the thermally insulated area (3). Method according to one of claims 5 or 6, characterized in that the liquid hydrogen at a temperature of 21, 5 K to 27.5 K, in particular from 21, 5 K to 24 K stored and / or promoted.
Verfahren nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Pumpe (2) den Druck des flüssigen Wasserstoffes 50 bis 1000 bar, insbesondere 350 bis 500 bar oder 700 oder 900 bar erhöht. Method according to one of claims 5 to 7, characterized in that the pump (2) increases the pressure of the liquid hydrogen 50 to 1000 bar, in particular 350 to 500 bar or 700 or 900 bar.
EP17718021.3A 2016-04-28 2017-04-06 Hydrogen filling station with liquid hydrogen Withdrawn EP3449171A1 (en)

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DE102016005217.1A DE102016005217A1 (en) 2016-04-28 2016-04-28 Hydrogen station with liquid hydrogen
PCT/EP2017/000431 WO2017186336A1 (en) 2016-04-28 2017-04-06 Hydrogen filling station with liquid hydrogen

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KR102379133B1 (en) 2020-08-13 2022-03-29 한국기계연구원 Liquid hydrogen station
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WO2017186336A1 (en) 2017-11-02
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KR20180138214A (en) 2018-12-28
JP2019515212A (en) 2019-06-06
US20190137038A1 (en) 2019-05-09

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