EP4097390A1 - Dispositif de stockage de gaz comprimé, véhicule - Google Patents

Dispositif de stockage de gaz comprimé, véhicule

Info

Publication number
EP4097390A1
EP4097390A1 EP20839112.8A EP20839112A EP4097390A1 EP 4097390 A1 EP4097390 A1 EP 4097390A1 EP 20839112 A EP20839112 A EP 20839112A EP 4097390 A1 EP4097390 A1 EP 4097390A1
Authority
EP
European Patent Office
Prior art keywords
valve
pressurized gas
gas container
shut
compressed gas
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.)
Pending
Application number
EP20839112.8A
Other languages
German (de)
English (en)
Inventor
Udo Schaich
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP4097390A1 publication Critical patent/EP4097390A1/fr
Pending 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • B60K2015/03026—Gas tanks comprising a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03309—Tanks specially adapted for particular fuels
    • B60K2015/03315—Tanks specially adapted for particular fuels for 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
    • 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
    • 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
    • F17C2205/0329—Valves manually actuated
    • 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
    • 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
    • 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
    • F17C2205/0341—Filters
    • 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
    • F17C2205/037—Quick connecting means, e.g. couplings
    • 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
    • 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
    • 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
    • F17C2225/036—Very high pressure, i.e. above 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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
    • F17C2270/0178—Cars
    • 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 device for storing compressed gas with the Merkma len of the preamble of claim 1.
  • the compressed gas can be, for example, hydrogen or natural gas, which is on board a vehicle for supplying a fuel cell system or an internal combustion engine with the each gas is carried.
  • the invention also relates to a vehicle with a device according to the invention.
  • pressurized gases are usually stored in a single pressurized gas tank or in several pressurized gas containers or pressurized gas cylinders.
  • the tightness of the tank or the bottles must be guaranteed at all times.
  • safety solenoid valves are used which are closed in the de-energized state, so that gas leakage is reliably avoided even in the event of a fault.
  • the law may stipulate that such a safety magnetic valve (“shut-off valve”) must be available for each pressurized gas container and attached directly to or in the container. Depending on the number of containers, the number of valves can thus increase quickly.
  • a storage device for pressurized gas with several pressurized gas containers is known, each of which is connected to a common collecting volume via a tank valve and a line element.
  • the collection volume which can also be referred to as “rail”, reduces the amount of piping.
  • the collection volume is expanded to the effect that valve devices that were previously present in the gas supply line or the gas discharge line are integrated into the collection volume. This reduces the number of interfaces, which is an advantage with regard to the tightness problem.
  • the integrated Ventilein directions are preferably a check valve in the area of a gas supply line and a shut-off valve in the area of a gas discharge line.
  • valve devices integrated in the collecting volume can be used to seal against the surrounding lines.
  • the present invention is based on the object of developing a storage device of the type mentioned above in such a way that it meets increased safety requirements, for example to enable the use of pressurized gas containers whose nominal pressure is 900 bar or more.
  • the device proposed for storing compressed gas comprises a storage line to which at least one compressed gas container is connected via a valve.
  • the storage line has at least one connection piece for gas-tight connection of the at least one pressurized gas container.
  • a safety element is integrated into the connection piece, which has a filter function and a shut-off function.
  • the storage line of the proposed device has - among other things - the advantages of the collecting volume of the prior art mentioned at the beginning. This applies especially if more than just one pressurized gas container is connected to the storage line. Because then the Verroh approximately expenditure can be reduced via the common storage line.
  • a safety solenoid valve (“shut-off valve”) can be integrated into the common storage line so that each individual pressurized gas container does not have to be equipped with a safety solenoid valve. If a tank function is integrated in the safety solenoid valve, this can be detached and implemented at the other end of the storage line using an additional check valve unit. This measure enables the use of a safety solenoid valve that is less complex and requires smaller cross-sections and / or magnetic forces.
  • the valve, via which the at least one compressed gas container is connected to the storage line can also be designed as a simple passive or pressure-controlled valve.
  • the storage line of the device according to the invention has advantages that go beyond the prior art mentioned at the beginning.
  • the assembly is simplified by the at least one connection piece of the storage line.
  • the valve can be integrated into the connection piece, via which the connection of the at least one pressurized gas container to the storage line takes place. This reduces the number of interfaces or sealing points and also helps to save installation space.
  • At least one safety element is integrated into the connection piece, which has a filter function and a blocking function.
  • the proposed integration of functions can further reduce the complexity of the device. At the same time, higher security requirements can be met.
  • the filter function counteracts the entry of harmful particles.
  • the shut-off function provides an additional safety level, which is preferably activated in the event of danger, for example in the event of an unacceptably high rise in temperature, which can be caused by a fire.
  • the shut-off function of the security element can be activated thermally.
  • the shut-off function is preferably activated when the temperature rises above a certain critical value.
  • the rise in temperature can be caused by a simultaneous rise in pressure in the system or externally, for example by a fire. Because the shut-off function can be activated thermally, additional actuators are unnecessary. This increases safety in the event of a fault or danger.
  • the safety element comprises a filter unit that is movably received in the connection piece, which is supported at its end facing away from the pressurized gas container via a melt ring and is held at an axial distance from a sealing seat integrated in the connection piece.
  • the fusible ring is preferably made from a metallic material, in particular from a metallic alloy, for example based on bismuth.
  • the melting point of such materials is comparatively low, so that - for example in the event of a fire - the melting ring begins to melt after a short time due to increased radiant heat.
  • the respective response point can be set via the alloy ratio.
  • the response or melting point can be around 130 ° C to 140 ° C, so that a “low-melting alloy” is present. It is important that the response or melting point of the melting ring is below the respective melting point of the critical sealing and closing elements so that the protective function can take effect before compressed gas escapes in an uncontrolled manner.
  • the melting ring can be designed as a simple ring, which is preferably axially supported on an annular shoulder of the connecting piece.
  • the sealing seat for the filter unit is preferably formed by a further annular shoulder of the connecting piece. If there is a melting ring, the shoulder can be used to deflect the compressed gas flowing out of the compressed gas container.
  • the filter unit preferably has a hollow cylindrical filter into which the compressed gas flows axially from the compressed gas container. The compressed gas enters an annular space through the filter, which is delimited radially on the inside by the filter and radially on the outside by the connecting piece. The filtrate is then guided and deflected over the annular space in the direction of the shoulder or sealing seat.
  • the pressurized gas is then directed radially inward again via radial bores in a filter receptacle of the filter unit arranged on the end face.
  • the filter receptacle can at the same time form a sealing surface that interacts with the sealing seat.
  • the sealing surface is preferably arranged upstream of the radial bores, so that these are closed when the sealing surface comes into contact with the sealing seat.
  • the valve via which the pressurized gas container is connected to the storage line is a quantity limiting valve.
  • the valve and the safety element are preferably connected in series and together form a shut-off valve as a further safety element.
  • the filter unit of the first safety element can serve as a sealing seat for a movable valve element of the flow control valve.
  • the filter unit preferably has an annular filter receptacle arranged on the end face.
  • a spring is preferably arranged between the filter unit and the valve element of the flow control valve. The shut-off valve is thus pressure-controlled.
  • a locking screw can be inserted or screwed into the connecting piece after assembly. This preferably has a central through-flow opening so that pressurized gas from the connected pressurized gas container passes into the connection piece and thus into the storage line.
  • the at least one pressurized gas container of the device according to the invention can in particular be designed in the shape of a bottle.
  • the pressurized gas container has at least one neck-shaped end section.
  • the neck-shaped end section facilitates the gas-tight connection of the compressed gas container to the storage line, since the diameter to be sealed is reduced.
  • the pressurized gas container is preferably screwed onto the connecting piece directly or indirectly with the aid of a union nut via a preferably neck-shaped end section.
  • the screw connection not only simplifies the gas-tight connection, but also allows the pressurized gas tank to be easily dismantled if necessary, for example to replace a defective pressurized gas tank.
  • the compressed gas container is screwed directly onto the connecting piece, the preferably neck-shaped end section has an internal thread with which the compressed gas container is screwed onto an external thread of the connecting piece.
  • a union nut is used, it is screwed onto the connecting piece.
  • any other type of fastening can be selected for the high-pressure-tight connection of the pressurized gas container with the connecting piece.
  • the pressurized gas container preferably has a closure body in the region of a further, preferably neck-shaped end section, into which at least one further security element is integrated.
  • the closure body can in particular be a Be a screw plug that is both easy to assemble and easy to dismantle.
  • the screw plug preferably has an external thread and the preferably neck-shaped end section of the pressurized gas container has an internal thread.
  • the at least one further safety element is preferably a vent valve with an integrated bursting disc and / or a temperature limiting valve. If two security elements are provided, they are preferably arranged in parallel or connected in parallel so that they can fulfill their function independently of one another.
  • a vent valve with a rupture disc the pressure of the pressurized gas container is applied directly to the rupture disc. If the pressure rises above a critical value, the rupture disc breaks and releases a ventilation cross-section to the outside.
  • the pressurized gas present in the pressurized gas container is blown off to the outside in a controlled manner in order to reduce pressure.
  • the vent valve can be actuated manually, for example by unscrewing it, so that the pressurized gas container can also be manually depressurized.
  • the flow speed can be reduced via a fixed throttle so that it is in the uncritical range.
  • a temperature limiting valve it opens when the temperature in the pressurized gas container rises above a critical value. In this case, the valve opens and releases a cross-section through which the pressurized gas can flow out of the pressurized gas container, so that pressure is reduced.
  • At least one shut-off element preferably manually operable from the outside, for example in the form of a shut-off screw, is advantageously integrated into the storage line.
  • the at least one shut-off element enables an individual pressurized gas container to be exchanged without having to empty the system. This means that functionality is retained if more than one pressurized gas container is connected to the storage line.
  • the shut-off element is preferably designed and placed in such a way that only a secondary path but not the main flow path the storage line is interrupted.
  • the number of Absperrele elements preferably corresponds to the number of compressed gas containers, so that each compressed gas container is assigned a shut-off element that can preferably be operated manually.
  • further components such as temperature and / or pressure sensors, can be integrated into the storage line, in particular in the area of a connection piece. These can then be sealed, connected and / or contacted in a simple and uncomplicated manner via the common storage line or the rail.
  • the compressed gas can in particular be hydrogen for operating a fuel cell system or an internal combustion engine.
  • the compressed gas can be natural gas that is stored on board the vehicle for the purpose of operating an internal combustion engine with the aid of the device according to the invention.
  • FIG. 1 shows a longitudinal section through a device according to the invention for storing compressed gas
  • Fig. 2 is an enlarged section of FIG. 1 in the region of a first Endab section of a pressurized gas container and
  • FIG. 3 is an enlarged section of FIG. 1 in the region of a second Endab section of a pressurized gas container. Detailed description of the drawings
  • the device for storing compressed gas shown in FIG. 1 comprises several compressed gas containers 2 connected to a common storage line 1.
  • the common storage line 1 which can also be referred to as “rail”, comprises a main line 21 and several branches 22.
  • the contents of a pressurized gas container 2 reach the main line 21 via branches 22.
  • the number of branches 22 therefore corresponds to the number the compressed gas container 2.
  • the branches 22 pass through connecting pieces 4, onto which the compressed gas containers 2 are placed in a gas-tight manner, for example screwed on or pressed on.
  • each pressurized gas container 2 has a neck-shaped end section 2.1, which can be connected to the respective connection stub 4 in a non-positive and / or form-fitting manner, so that the connection is high-pressure-tight.
  • each pressurized gas container 2 has a further neck-shaped end section 2.2 into which a closure body 9, for example a locking screw, is inserted or screwed.
  • Acrumagnetven valve 20 is integrated into the common storage line 1 or into the rail, specifically in such a way that the main line 21 can be shut off via this.
  • the integration of a safety solenoid valve 20 in each of the compressed gas containers 2 is therefore unnecessary.
  • manually operated shut-off elements 13 for shutting off individual branches 22 are provided. When actuated, they only block the respective branch 22, but not the main line 21, so that the function is otherwise maintained. This is advantageous, for example, when a single pressurized gas container is to be replaced.
  • FIG. 2 shows this area in an enlarged presen- tation. Shown is a section of the storage line 1 with a connection stub zen 4, onto which a pressurized gas container 2 is screwed.
  • a safety element 5 and a valve 3 are integrated in the present case, which in the present case interact to form a shut-off valve.
  • the security element 5 comprises a filter unit 6 which is axially supported by a metallic fusible ring 7 and is held at a distance from a sealing seat 8.
  • the sealing seat 8 is formed by a shoulder of the connecting piece 4.
  • the filter unit 6 comprises a hollow cylindrical filter 6.1 which is arranged between two filter receptacles 6.2, 6.3.
  • the filter receptacle 6.2 facing the main line 21 forms a closure body so that pressurized gas is passed from the pressurized gas container 2 via the filter 6.1 radially outward into an annular space 17. Any particles contained in the compressed gas are deposited on the inside of the filter.
  • the filtrate reaches the shoulder of the connecting piece 4 forming the sealing seat 8 via the annular space 17.
  • the gas flow is deflected and directed into the branch 22 via radial bores 6.4 formed in the filter receptacle 6.2.
  • the filter unit 6 accordingly fulfills a filter or protective function.
  • the security element 5 thus fulfills a filter function and a shut-off function.
  • valve element 23 closes an inlet opening 6.6 of the filter receptacle 6.3 so that no more pressurized gas can get into the branch 22.
  • the valve 3 and the filter unit 6 of the safety element 5 accordingly together form a shut-off valve or a further safety element 5.
  • a locking screw 14 with a zentra len throughflow opening 19 is screwed into this end.
  • Each pressurized gas container 2 of the device shown in FIG. 1 has further safety elements at its end facing away from the storage line 1. These are integrated in the closure body 9 or in the closure screw and are explained in more detail below with reference to FIG. 3.
  • a vent valve 10 with a rupture disk 11 is integrated into the closure body 9 as a further safety element.
  • the rupture disc breaks and thus opens the vent valve 10 when the pressure in the pressurized gas container 2 rises above a critical value. Pressurized gas can then be released via the vent valve 10 and thus pressure can be reduced.
  • the vent valve 10 is preceded by a throttle 15.
  • a temperature limiting valve 12 is integrated into the closure body 9 as a further safety element. When a critical temperature is exceeded, this opens and releases a relief bore 24, via which pressurized gas can be released, so that the pressure in the pressurized gas container 2 drops.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

L'invention concerne un dispositif de stockage de gaz comprimé, par exemple de l'hydrogène ou du gaz naturel, comprenant une conduite de stockage (1) à laquelle est raccordé au moins un réservoir (2) de gaz comprimé par l'intermédiaire d'une soupape (3). Selon l'invention, la conduite de stockage (1) présente au moins un orifice de raccordement (4) pour la liaison étanche aux gaz dudit au moins un récipient (2) de gaz comprimé, et un élément de sécurité (5), qui a une fonction de filtre et une fonction d'arrêt, est intégré dans l'orifice de raccordement (4). L'invention concerne en outre un véhicule équipé d'un dispositif selon l'invention pour le stockage de gaz comprimé.
EP20839112.8A 2020-01-31 2020-12-28 Dispositif de stockage de gaz comprimé, véhicule Pending EP4097390A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020201172.9A DE102020201172A1 (de) 2020-01-31 2020-01-31 Vorrichtung zum Speichern von Druckgas, Fahrzeug
PCT/EP2020/087933 WO2021151607A1 (fr) 2020-01-31 2020-12-28 Dispositif de stockage de gaz comprimé, véhicule

Publications (1)

Publication Number Publication Date
EP4097390A1 true EP4097390A1 (fr) 2022-12-07

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EP20839112.8A Pending EP4097390A1 (fr) 2020-01-31 2020-12-28 Dispositif de stockage de gaz comprimé, véhicule

Country Status (7)

Country Link
US (1) US11953155B2 (fr)
EP (1) EP4097390A1 (fr)
JP (1) JP2023510966A (fr)
KR (1) KR20220128669A (fr)
CN (1) CN115038906A (fr)
DE (1) DE102020201172A1 (fr)
WO (1) WO2021151607A1 (fr)

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DE102022109125A1 (de) 2022-04-13 2023-10-19 Norma Germany Gmbh Druckminderer zur Ermöglichung der Verwendung von Polymerrohren für thermische Druckentlastungsvorrichtungen von wasserstoffbetriebenen Fahrzeugen
DE102022208069A1 (de) 2022-08-03 2024-02-08 Robert Bosch Gesellschaft mit beschränkter Haftung Absperrventil, Verfahren zum Betreiben eines Absperrventils und Magnetbaugruppe
DE102022003990A1 (de) 2022-10-25 2024-04-25 Baldus Sedation Gmbh & Co. Kg Aufnahmebehälter mit Überwachungseinheit

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Publication number Publication date
CN115038906A (zh) 2022-09-09
US20230075356A1 (en) 2023-03-09
KR20220128669A (ko) 2022-09-21
DE102020201172A1 (de) 2021-08-05
JP2023510966A (ja) 2023-03-15
WO2021151607A1 (fr) 2021-08-05
US11953155B2 (en) 2024-04-09

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