CN111129544A - Hydrogen supply system applied to hydrogen fuel cell automobile and hydrogen fuel cell automobile - Google Patents
Hydrogen supply system applied to hydrogen fuel cell automobile and hydrogen fuel cell automobile Download PDFInfo
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- CN111129544A CN111129544A CN201911383498.3A CN201911383498A CN111129544A CN 111129544 A CN111129544 A CN 111129544A CN 201911383498 A CN201911383498 A CN 201911383498A CN 111129544 A CN111129544 A CN 111129544A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04761—Pressure; Flow of fuel cell exhausts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04104—Regulation of differential pressures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
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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
- Y02E60/50—Fuel cells
Abstract
The invention discloses a hydrogen supply system applied to a hydrogen fuel cell automobile, which comprises: the hydrogen storage device comprises a hydrogen storage module, a plurality of bottleneck combination valves, a pressure reduction module and a pressure reduction combination valve, wherein the pressure reduction combination valve comprises a first filter, a first pressure reduction valve, a first safety valve, a proportion regulating valve and a first pressure sensor. The invention is additionally provided with the pressure reducing combination valve on the basis of the pressure reducing module to realize the secondary pressure reduction of the hydrogen, the hydrogen pressure after the pressure reducing module and the pressure reducing combination valve are subjected to two-time pressure regulation is stable, and the hydrogen can directly enter the fuel cell stack to work without adding equipment such as hydrogen pressure reducing and regulating in the fuel cell system, thereby reducing the integration cost of the fuel cell system and being more convenient for fuel cell automobiles. And the pressure reduction combination valve adopts a combination valve form, so that connecting pipelines are greatly reduced, the structure of the hydrogen supply system is simplified, the structural space and leakage points of the system are reduced, and the assembly efficiency of the hydrogen supply system is improved.
Description
Technical Field
The invention relates to the field of fuel cells, in particular to a hydrogen supply system applied to a hydrogen fuel cell automobile and the hydrogen fuel cell automobile.
Background
Hydrogen energy is considered as an important secondary energy source for future development, and has the advantages of rich resources, high combustion heat value, cleanness, renewability and the like. The Proton Exchange Membrane Fuel Cell (PEMFC) has the advantages of high energy conversion efficiency, low working temperature, zero pollution, high energy density, quick start and the like, and is a high-efficiency and environment-friendly new energy power generation device.
Hydrogen fuel cell vehicles are currently the focus of the development of Proton Exchange Membrane Fuel Cells (PEMFCs), while on-board hydrogen supply systems are an important component of fuel cell vehicles for providing a safe and adequate fuel supply to the fuel cell system.
At present, the pressure of hydrogen provided by a hydrogen storage system of a domestic hydrogen fuel cell automobile after primary pressure reduction is generally higher, the hydrogen cannot directly enter a fuel cell stack for use, and other devices for pressure reduction, pressure stabilization and the like must be additionally arranged in the fuel cell system to meet the requirements of the fuel cell stack, but the cost of the fuel cell system is increased.
Disclosure of Invention
The invention mainly aims to provide a hydrogen supply system applied to a hydrogen fuel cell automobile, and aims to solve the problem that in the prior art, the hydrogen pressure provided by a hydrogen storage system is generally higher and cannot directly enter a fuel cell stack for use, so that a pressure reducing device is required to be additionally arranged on the stack, and the cost of the fuel cell system is increased.
In order to achieve the above object, the present invention provides a hydrogen supply system for a hydrogen fuel cell vehicle, the hydrogen supply system comprising:
the hydrogen storage module comprises a plurality of hydrogen storage bottles for storing hydrogen;
the hydrogen outlet of each hydrogen storage bottle is provided with one bottleneck combination valve which is used for controlling the on-off of the hydrogen outlet;
the pressure reducing module is connected with each bottle mouth combination valve and is used for controlling the pressure of the hydrogen output by the bottle mouth combination valves;
the pressure reducing combined valve comprises a first filter, a first pressure reducing valve, a first safety valve, a proportion regulating valve and a first pressure sensor, wherein the first filter, the first pressure reducing valve and the proportion regulating valve are sequentially connected, the first filter is further connected with a pressure reducing module, the proportion regulating valve is further connected with a fuel cell stack, the first safety valve is connected with the first pressure reducing valve, the pressure sensor is arranged on a connecting pipeline between the first pressure reducing valve and the proportion regulating valve, and the proportion regulating valve and the pressure sensor are electrically connected with a controller of a fuel cell system.
Preferably, the pressure reducing combination valve further comprises a maintenance exhaust valve, and the maintenance exhaust valve is arranged on a connecting pipeline between the first pressure reducing valve and the proportional regulating valve.
Preferably, the hydrogen storage module further comprises a first relief valve arranged at the tail of each hydrogen storage bottle and a vent pipe connected with each first relief valve, and a flame arrester is further arranged at the tail end of the vent pipe.
Preferably, the bottleneck combination valve comprises an overflow valve, a second filter, a shuttle valve and a needle valve which are sequentially connected, and a first electromagnetic valve which is connected with the shuttle valve in parallel, the overflow valve is connected with a hydrogen outlet of the hydrogen storage bottle, and the needle valve is connected with the pressure reduction module; the bottleneck combination valve also comprises a second pressure sensor and a first temperature sensor which are arranged in the hydrogen storage bottle; the first electromagnetic valve, the shuttle valve, the second pressure sensor and the first temperature sensor are all connected with a controller of the fuel cell system.
Preferably, the bottle mouth combination valve further comprises a manual stop valve connected with a hydrogen outlet of the hydrogen storage bottle and a maintenance port one-way valve connected with the manual stop valve, and an outlet of the maintenance port one-way valve is communicated with the emptying pipe.
Preferably, the bottle mouth combination valve further comprises a second relief valve connected with a hydrogen outlet of the hydrogen storage bottle, and an outlet of the second relief valve is communicated with the emptying pipe.
Preferably, the pressure reducing module comprises a second pressure reducing valve, a second safety valve, a manual emptying ball valve and a third pressure sensor, wherein the second safety valve, the manual emptying ball valve and the third pressure sensor are connected with an outlet of the second pressure reducing valve, an inlet of the second pressure reducing valve is connected with each needle valve of the bottle mouth combination valve, an outlet of the second pressure reducing valve is further connected with the first filter, and an outlet of the second safety valve and an outlet of the manual emptying ball valve are communicated with the emptying pipe.
Preferably, the hydrogen supply system applied to the hydrogen fuel cell automobile further comprises a hydrogenation module, wherein the hydrogenation module comprises a hydrogenation port, a one-way valve connected with the bottleneck combination valve and a second electromagnetic valve arranged between the bottleneck combination valve and the pressure reduction module, and the second electromagnetic valve is electrically connected with the controller; the hydrogenation module further comprises a hydrogenation machine and a hydrogenation gun which are arranged outside the vehicle, and the hydrogenation gun can be connected with the hydrogenation port in a matched mode.
Preferably, the hydrogenation machine is connected with the hydrogenation gun through a metal hose, the hydrogenation module further comprises an emergency break valve and a third filter, the emergency break valve is arranged on the metal hose, and the emergency break valve can cut off a passage between the metal hose and the hydrogenation machine.
The present invention also provides a hydrogen fuel cell vehicle including the hydrogen supply system applied to the hydrogen fuel cell vehicle as described in any one of the above, the hydrogen supply system applied to the hydrogen fuel cell vehicle at least including:
the hydrogen storage module comprises a plurality of hydrogen storage bottles for storing hydrogen;
the hydrogen outlet of each hydrogen storage bottle is provided with one bottleneck combination valve which is used for controlling the on-off of the hydrogen outlet;
the pressure reducing module is connected with each bottle mouth combination valve and is used for controlling the pressure of the hydrogen output by the bottle mouth combination valves;
the pressure reducing combined valve comprises a combined valve formed by first filtering, wherein a first filter, a first pressure reducing valve and a proportional regulating valve are sequentially connected, the first filter is further connected with a pressure reducing module, the proportional regulating valve is further connected with a fuel cell stack, a first safety valve is connected with the first pressure reducing valve, a pressure sensor is arranged on a connecting pipeline between the first pressure reducing valve and the proportional regulating valve, and the proportional regulating valve and the pressure sensor are electrically connected with a controller of a fuel cell system.
The invention is additionally provided with the pressure reducing combination valve on the basis of the pressure reducing module to realize the secondary pressure reduction of the hydrogen, the hydrogen pressure after the pressure reducing module and the pressure reducing combination valve are subjected to two-time pressure regulation is stable, and the hydrogen can directly enter the fuel cell stack to work without adding equipment such as hydrogen pressure reducing and regulating in the fuel cell system, thereby reducing the integration cost of the fuel cell system and being more convenient for fuel cell automobiles. And the pressure reduction combination valve adopts a combination valve form, so that connecting pipelines are greatly reduced, the structure of the hydrogen supply system is simplified, the structural space and leakage points of the system are reduced, and the assembly efficiency of the hydrogen supply system is improved.
Drawings
FIG. 1 is a schematic structural diagram of a hydrogen supply system for a hydrogen fuel cell vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the pressure reducing combination valve shown in FIG. 1;
FIG. 3 is a schematic structural view of the finish combining valve shown in FIG. 1.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same elements or elements having the same functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.
To solve the above technical problem, as shown in fig. 1 and 2, the present invention provides a hydrogen supply system for a hydrogen fuel cell vehicle, and in one embodiment, the hydrogen supply system for a hydrogen fuel cell vehicle includes:
a hydrogen storage module 100 including a plurality of hydrogen storage bottles 110 for storing hydrogen gas;
the hydrogen outlet of each hydrogen storage bottle 110 is provided with a bottleneck combination valve 200, and the bottleneck combination valve 200 is used for controlling the on-off of the hydrogen outlet;
the pressure reducing module 300 is connected with each bottleneck combination valve 200 and is used for controlling the pressure of the hydrogen output by the bottleneck combination valves 200;
the pressure reducing combination valve 400 comprises a first filter 401, a first pressure reducing valve 402, a first safety valve 403, a proportional regulating valve 406 and a first pressure sensor 404, wherein the first filter 401, the first pressure reducing valve 402 and the proportional regulating valve 406 are sequentially connected, the first filter 401 is further connected with the pressure reducing module 300, the proportional regulating valve 406 is further connected with the fuel cell stack 500, the first safety valve 403 is connected with the first pressure reducing valve 402, the pressure sensor is arranged on a connecting pipeline between the first pressure reducing valve 402 and the proportional regulating valve 406, and the proportional regulating valve 406 and the first pressure sensor 404 are both electrically connected with a controller 700 of the fuel cell system.
In this embodiment, the hydrogen storage bottle 110 is used for storing hydrogen, the nominal working pressure of the hydrogen storage bottle 110 is 70Mpa, the maximum allowable pressure is 1.25 times of the nominal working pressure, and the number of the hydrogen storage bottles 110 can be increased according to the required amount of hydrogen storage. The hydrogen stored in the hydrogen storage bottle 110 sequentially passes through the bottleneck combination valve 200, the pressure reduction module 300 and the pressure reduction combination valve 400 and then enters the fuel cell stack 500 of the fuel cell system. Wherein, the bottleneck combination valve 200 is used for controlling the on-off of the hydrogen outlet of the hydrogen storage bottle 110. The pressure reducing module 300 is used for reducing the pressure of the hydrogen output by the bottleneck combination valve 200 so as to control the hydrogen within a preset range. On the basis of the pressure reducing module 300, the pressure reducing combination valve 400 is additionally arranged in the embodiment, the pressure reducing combination valve 400 adopts a combination valve form, the pressure reducing combination valve 400 is used for further reducing the pressure of hydrogen output by the pressure reducing module 300, the pressure of the hydrogen after twice pressure regulation by the pressure reducing module 300 and the pressure reducing combination valve 400 is stable, the hydrogen can directly enter the fuel cell stack 500 to work, equipment such as hydrogen pressure reduction and pressure regulation does not need to be additionally arranged in the fuel cell system, the integration cost of the fuel cell system is reduced, and the use is more convenient for a fuel cell automobile.
In this embodiment, the pressure reducing combination valve 400 has a combination valve structure, and a first filter 401, a first pressure reducing valve 402, a first relief valve 403, a proportional control valve 406, and a first pressure sensor 404 are integrated therein. Wherein, the first filter 401 is used for filtering impurities in the gas, and the first pressure reducing valve 402 is used for reducing the pressure of the hydrogen gas output from the hydrogen storage bottle 110. The pressure sensor monitors the hydrogen pressure at the outlet of the first pressure reducing valve 402 in real time and feeds back to the controller 700 of the fuel cell system. When the pressure exceeds a safety value, the first safety valve 403 automatically jumps to exhaust, and the safety of the system is ensured. The proportional regulating valve 406 is controlled by a controller 700(FCU) of the fuel cell system to adjust the flow rate and pressure of hydrogen gas entering the fuel cell stack 500 in real time according to the power variation of the fuel cell system, thereby ensuring smooth operation of the entire fuel cell system. The embodiment greatly reduces the number of connecting pipelines by using the pressure reducing combination valve 400 in the form of the combination valve, simplifies the structure of the hydrogen supply system, reduces the structural space and leakage points of the system, and improves the assembly efficiency of the hydrogen supply system.
In a preferred embodiment, as shown in FIG. 2, the pressure reducing combination valve 400 further includes a service vent valve 405, the service vent valve 405 being disposed on the connecting conduit between the first pressure reducing valve 402 and the proportional regulating valve 406.
In this embodiment, when the first safety valve 403 fails and cannot automatically release the pressure, the maintenance exhaust valve 405 may be manually opened to exhaust the pressure, and the maintenance exhaust valve 405 may also be used as an exhaust port for maintenance of the combination valve (pressure reducing combination valve 400) and an exhaust port of the fuel cell system.
In a preferred embodiment, the hydrogen storage module 100 further comprises a first release valve 120 disposed at a rear portion of each hydrogen storage bottle 110 and a vent pipe 130 connected to each first release valve 120, and a flame arrester 140 is further disposed at a distal end of the vent pipe 130.
In this embodiment, the first release valve 120 (i.e., the PRD valve) is made of fusible alloy, and when an accident such as fire or impact occurs, the fusible alloy is disconnected after the pressure and temperature of hydrogen in the hydrogen storage bottle 110 exceed their allowable set values, and the first release valve 120 is automatically opened and exhausts air through the vent pipe 130 connected to its outlet, so that the hydrogen storage bottle 110 can automatically exhaust air and release pressure quickly after the accident occurs, so as to protect the bottle body from bursting. The end of the flare pipe 130 is provided with a flame arrester 140 for preventing a backfire accident in case of an external fire.
In a preferred embodiment, as shown in fig. 3, the mouthpiece combination valve 200 includes an overflow valve 203, a second filter 204, a shuttle valve 205 and a needle valve 206 connected in sequence, and a first electromagnetic valve 207 arranged in parallel with the shuttle valve 205, the overflow valve 203 is connected with the hydrogen outlet of the hydrogen storage bottle 110, and the needle valve 206 is connected with the pressure reduction module 300; the mouthpiece valve 200 further includes a second pressure sensor 202 and a first temperature sensor 201 disposed in the hydrogen storage bottle 110; the first electromagnetic valve 207, the shuttle valve 205, the second pressure sensor 202, and the first temperature sensor 201 are all connected to a controller 700 of the fuel cell system.
In this embodiment, the overflow valve 203 is used for limiting the flow, and when a traffic accident occurs to the vehicle and the high-pressure pipeline is broken, the overflow valve 203 can automatically shut off the main gas supply pipeline of the cylinder valve, so as to prevent a large amount of hydrogen from leaking. The overflow valve 203 is integrated in the bottle mouth combination valve 200, no additional connecting conduit is needed, and the whole structure is more compact.
The second filter 204 is for impurities in the passing hydrogen gas. The shuttle valve 205 and the first electromagnetic valve 207 are installed in parallel, and are controlled by the controller 700 of the fuel cell system, and the shuttle valve 205 is used for supplying air at ordinary times, and the first electromagnetic valve 207 is closed. The shuttle valve 205 has the characteristics of small volume, convenient installation, internal piston structure and the like, so that the medium pressure has little more resistance interference on the piston, thereby realizing rapid switching. And because the pressure loss is little, its application scope is wider, in addition only one part (piston) is in motion inside, because still have the motion simple reliable, easy maintenance, can arbitrary direction installation, advantage such as long-lived. When the shuttle valve 205 fails to open, the controller 700 opens the first electromagnetic valve 207 to supply air to the fuel cell system, and the design in which the shuttle valve 205 and the first electromagnetic valve 207 are installed in parallel can serve as a double safety function. The needle valve 206 remains normally open and may be manually closed when service is required.
The coil and the valve core of the mouthpiece valve 200 are designed inside the hydrogen storage cylinder 110 so that they can be protected from impact and the external environment. Similarly, the second pressure sensor 202 and the first temperature sensor 201 are disposed inside the hydrogen storage bottle 110, and are prevented from being damaged by the impact of foreign objects. The second pressure sensor 202 and the first temperature sensor 201 are connected to a controller 700 of the fuel cell system, and feed back the pressure and temperature inside the hydrogen storage cylinder 110 to the controller 700 in real time.
In a preferred embodiment, as shown in fig. 3, the mouthpiece combination valve 200 further includes a manual cut-off valve 209 connected to the hydrogen gas outlet of the hydrogen storage cylinder 110 and a service port check valve 210 connected to the manual cut-off valve 209, the outlet of the service port check valve 210 being in communication with the vent pipe 130.
In this embodiment, manual shut-off valve 209 remains normally closed and opens to vent when service is required or when a bleed air flow therethrough is required. The service port check valve 210 functions to prevent external gas from entering the hydrogen storage cylinder 110 when the manual cut-off valve 209 is opened. The gas discharged through the manual cut-off valve 209 and the service port check valve 210 in this order is merged into the flare 130.
In a preferred embodiment, as shown in FIG. 3, the port combination valve 200 further comprises a second relief valve 208 connected to the hydrogen gas outlet of the hydrogen storage bottle 110, the outlet of the second relief valve 208 being in communication with the vent tube 130.
The second release valve 208 and the first release valve 120 act in concert to automatically open the vent gas when the pressure and temperature within the hydrogen storage cylinder 110 become excessive, thereby ensuring the safety of the hydrogen storage cylinder 110, and the vented gas also sinks into the vent line 130. When the second relief valve 208 fails and cannot exhaust, the manual stop valve 209 and the service port check valve 210 can be opened to exhaust.
In a preferred embodiment, as shown in FIG. 1, the pressure reducing module 300 includes a second pressure reducing valve 310, and a second relief valve 320, a manual dump ball valve 340 and a third pressure sensor 330 connected to an outlet of the second pressure reducing valve 310, wherein an inlet of the second pressure reducing valve 310 is connected to the needle valve 206 of each port combination valve 200, an outlet of the second pressure reducing valve 310 is further connected to a first filter 401, and an outlet of the second relief valve 320 and an outlet of the manual dump ball valve 340 are both in communication with the vent 130.
In this embodiment, the outlet of the needle valve 206 in each port combination valve 200 is connected to the inlet of the second pressure reducing valve 310, and the second pressure reducing valve 310 functions to reduce the gas pressure output from the needle valve 206. The third pressure sensor 330 functions to detect the pressure of the gas after being decompressed by the second decompression valve 310 and feed back to the controller 700. The second safety valve 320 is used for automatically jumping and exhausting when the gas pressure at the outlet of the second pressure reducing valve 310 is greater than a set value, so as to ensure that the pressure of the hydrogen output by the pressure reducing module 300 meets the requirement. The manual purge ball valve 340 is opened when the gas in the hydrogen storage bottle 110 or the gas in the pipeline between the hydrogen storage bottle 110 and the pressure reduction module 300 needs to be replaced, and fills the hydrogen storage bottle 110 with nitrogen gas to discharge the impurity gas, such as oxygen gas, in the hydrogen storage bottle 110 and the pipeline to the purge pipe 130. Of course, the replacement of only the gas in the hydrogen storage cylinder 110 may be performed directly through the manual cut-off valve 209 and the service port check valve 210, while the shuttle valve 205 and the first electromagnetic valve 207 need to be closed.
In a preferred embodiment, as shown in fig. 1, the hydrogen supply system applied to the hydrogen fuel cell vehicle further includes a hydrogenation module 600, the hydrogenation module 600 includes a hydrogenation port 650, a check valve 660 connected to the bottleneck combination valve 200, and a second electromagnetic valve 670 disposed between the bottleneck combination valve 200 and the pressure reduction module 300, and the second electromagnetic valve 670 is electrically connected to the controller 700; the hydrogenation module 600 further comprises a hydrogenation machine 610 and a hydrogenation gun 640 which are arranged outside the vehicle, wherein the hydrogenation gun 640 can be connected with the hydrogenation port 650 in a matching mode.
In this embodiment, the hydrogenation unit 610 and the hydrogenation gun 640 are generally disposed in the hydrogenation station as external hydrogenation devices. The parts of the hydrogenation module 600 disposed in the vehicle are a hydrogenation port 650, a check valve 660, and a second solenoid valve 670. The hydrogenation gun 640 is used for being inserted into the hydrogenation port 650 when hydrogenation operation is performed, the hydrogenation port 650 has low noise and has high flow rate and rapid filling capacity, and the check valve 660 is integrated at the rear end of the hydrogenation port 650, so that the influence of impurity backflow on components in the hydrogenation module 600 can be reduced to the maximum extent. The filter is integrated in the hydrogenation port 650, the high-precision three-dimensional filter element with the diameter of 10 mu m is integrated in the filter, the anti-pollution capability is strong, and the filter can filter particulate matters in gas, thereby avoiding the leakage of a container, improving the safety, providing extra safety for vehicle hydrogenation,
the second electromagnetic valve 670 is arranged between the pressure reduction module 300 and the bottleneck combination valve 200, when hydrogenation is started, the second electromagnetic valve 670 is closed, the passage between the check valve 660 and the pressure reduction module 300 is cut off, and hydrogen in the hydrogenation machine 610 sequentially passes through the hydrogenation gun 640, the hydrogenation port 650, the check valve 660, the needle valve 206 and the shuttle valve 205 (or the first electromagnetic valve 207), the second filter 204 and the overflow valve 203 and enters the hydrogen storage tank.
The maximum design pressure of the hydrogenation gun 640 can reach 99MPa, and the flow rate is very high. During the hydrogenation process, the second pressure sensor 202 and the first temperature sensor 201 in the hydrogen storage bottle 110 feed back the pressure and the temperature in the bottle to the controller 700 in real time, and the controller 700 starts the hydrogenation program or stops the hydrogenation program according to the real time. In the present application, the hydrogen storage bottle 110 made of the composite material is adopted to meet the hydrogen storage requirement of 70MPa, in this case, the service temperature of the hydrogen storage bottle 110 is preferably lower than 85 ℃, and in the rapid hydrogenation process, heat is inevitably generated due to compression and scorching-boiling effect, which easily causes the temperature of the hydrogen storage bottle 110 to rise above the limit value to bring about potential safety hazard, so the second pressure sensor 202 and the first temperature sensor 201 in the hydrogen storage bottle 110 are adopted to monitor the temperature and pressure in the bottle in real time in the embodiment, and the design of the hydrogenation process is controlled accordingly, so that the reliability and safety of the hydrogenation process can be ensured. The hydrogenation gun 640 is also provided with an infrared communication device, and the second pressure sensor 202 and the first temperature sensor 201 can transmit temperature and pressure data to the controller 700 in the form of infrared signals in real time through the infrared communication device.
In a preferred embodiment, as shown in fig. 1, the hydrogenation unit 610 and the hydrogenation gun 640 are connected by a metal hose, and the hydrogenation module 600 further includes an emergency break valve 620 and a third filter 630 disposed on the metal hose, wherein the emergency break valve 620 can cut off the passage between the metal hose and the hydrogenation unit 610.
In this embodiment, the third filter 630 is used to filter impurities in the hydrogen gas. The metal hose has the advantages of high temperature resistance, corrosion resistance and the like. The emergency break valve 620 is installed between the hydrogenation machine 610 and the hydrogenation gun 640. In the event of an accident, such as driving the vehicle while the hydrogenation lance 640 is still connected to the hydrogenation port 650, the emergency shut-off valve 620 separates the hydrogenation unit 610 from the metal hose and keeps both ends sealed, ensuring that hydrogen does not leak. The emergency break-off valve 620 can also be reconnected and placed back in service for ease of maintenance. A filter is also integrated inside the emergency shut-off valve 620 to filter hydrogen.
On the premise of the foregoing hydrogen supply system applied to a hydrogen fuel cell vehicle, the present invention also provides a hydrogen fuel cell including the hydrogen supply system applied to a hydrogen fuel cell vehicle as in any one of the foregoing, as shown in fig. 1 and 2, the hydrogen supply system applied to a hydrogen fuel cell vehicle at least including:
a hydrogen storage module 100 including a plurality of hydrogen storage bottles 110 for storing hydrogen gas;
the hydrogen outlet of each hydrogen storage bottle 110 is provided with a bottleneck combination valve 200, and the bottleneck combination valve 200 is used for controlling the on-off of the hydrogen outlet;
the pressure reducing module 300 is connected with each bottleneck combination valve 200 and is used for controlling the pressure of the hydrogen output by the bottleneck combination valves 200;
the pressure reducing combined valve 400 comprises a first filter 401, a first pressure reducing valve 402, a first safety valve 403, a proportional regulating valve 406 and a first pressure sensor 404, wherein the first filter 401, the first pressure reducing valve 402 and the proportional regulating valve 406 are sequentially connected, the first filter 401 is further connected with the pressure reducing module 300, the proportional regulating valve 406 is further connected with the fuel cell stack 500, the first safety valve 403 is connected with the first pressure reducing valve 402, the pressure sensor is arranged on a connecting pipeline between the first pressure reducing valve 402 and the proportional regulating valve 406, and the proportional regulating valve 406 and the pressure sensor are electrically connected with a controller 700 of the fuel cell system.
The above is only a part or preferred embodiment of the present invention, and neither the text nor the drawings should limit the scope of the present invention, and all equivalent structural changes made by the present specification and the contents of the drawings or the related technical fields directly/indirectly using the present specification and the drawings are included in the scope of the present invention.
Claims (10)
1. A hydrogen supply system for a hydrogen fuel cell vehicle, comprising:
the hydrogen storage module comprises a plurality of hydrogen storage bottles for storing hydrogen;
the hydrogen outlet of each hydrogen storage bottle is provided with one bottleneck combination valve which is used for controlling the on-off of the hydrogen outlet;
the pressure reducing module is connected with each bottle mouth combination valve and is used for controlling the pressure of the hydrogen output by the bottle mouth combination valves;
the pressure reducing combined valve comprises a first filter, a first pressure reducing valve, a first safety valve, a proportion regulating valve and a first pressure sensor, wherein the first filter, the first pressure reducing valve and the proportion regulating valve are sequentially connected, the first filter is further connected with a pressure reducing module, the proportion regulating valve is further connected with a fuel cell stack, the first safety valve is connected with the first pressure reducing valve, the pressure sensor is arranged on a connecting pipeline between the first pressure reducing valve and the proportion regulating valve, and the proportion regulating valve and the pressure sensor are electrically connected with a controller of a fuel cell system.
2. The hydrogen supply system for a hydrogen fuel cell vehicle according to claim 1, wherein the pressure reducing combination valve further comprises a maintenance vent valve provided on a connection pipe between the first pressure reducing valve and the proportional regulating valve.
3. The hydrogen supply system applied to the hydrogen fuel cell automobile as claimed in claim 1, wherein the hydrogen storage module further comprises a first release valve arranged at the tail part of each hydrogen storage bottle and a vent pipe connected with each first release valve, and a flame arrester is further arranged at the tail end of the vent pipe.
4. The hydrogen supply system applied to the hydrogen fuel cell automobile according to claim 3, wherein the bottleneck combination valve comprises an overflow valve, a second filter, a shuttle valve and a needle valve which are connected in sequence, and a first electromagnetic valve which is connected with the shuttle valve in parallel, the overflow valve is connected with a hydrogen outlet of the hydrogen storage bottle, and the needle valve is connected with the pressure reduction module; the bottleneck combination valve also comprises a second pressure sensor and a first temperature sensor which are arranged in the hydrogen storage bottle; the first electromagnetic valve, the shuttle valve, the second pressure sensor and the first temperature sensor are all connected with a controller of the fuel cell system.
5. The hydrogen supply system applied to the hydrogen fuel cell automobile according to claim 4, wherein the bottleneck combination valve further comprises a manual stop valve connected with the hydrogen outlet of the hydrogen storage bottle and a maintenance port check valve connected with the manual stop valve, and the outlet of the maintenance port check valve is communicated with the vent pipe.
6. The hydrogen supply system for hydrogen fuel cell vehicle as claimed in claim 4, wherein the combination valve further comprises a second release valve connected to the hydrogen outlet of the hydrogen storage bottle, and the outlet of the second release valve is communicated with the vent pipe.
7. The hydrogen supply system applied to the hydrogen fuel cell automobile according to claim 4, wherein the pressure reducing module comprises a second pressure reducing valve, and a second safety valve, a manual air release ball valve and a third pressure sensor which are connected with an outlet of the second pressure reducing valve, wherein an inlet of the second pressure reducing valve is connected with a needle valve of each bottleneck combination valve, an outlet of the second pressure reducing valve is further connected with the first filter, and an outlet of the second safety valve and an outlet of the manual air release ball valve are both communicated with the air release pipe.
8. The hydrogen supply system applied to the hydrogen fuel cell automobile according to claim 4, further comprising a hydrogenation module, wherein the hydrogenation module comprises a hydrogenation port, a one-way valve connected with the bottleneck combination valve, and a second electromagnetic valve arranged between the bottleneck combination valve and the pressure reduction module, and the second electromagnetic valve is electrically connected with the controller; the hydrogenation module further comprises a hydrogenation machine and a hydrogenation gun which are arranged outside the vehicle, and the hydrogenation gun can be connected with the hydrogenation port in a matched mode.
9. The hydrogen supply system for the hydrogen fuel cell vehicle according to claim 8, wherein the hydrogenation unit and the hydrogenation gun are connected by a metal hose, and the hydrogenation module further comprises an emergency break valve and a third filter which are disposed on the metal hose, wherein the emergency break valve can cut off a passage between the metal hose and the hydrogenation unit.
10. A hydrogen fuel cell vehicle, characterized by comprising the hydrogen supply system according to any one of claims 1 to 9 applied to a hydrogen fuel cell vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911383498.3A CN111129544A (en) | 2019-12-27 | 2019-12-27 | Hydrogen supply system applied to hydrogen fuel cell automobile and hydrogen fuel cell automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911383498.3A CN111129544A (en) | 2019-12-27 | 2019-12-27 | Hydrogen supply system applied to hydrogen fuel cell automobile and hydrogen fuel cell automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952633A (en) * | 2020-08-19 | 2020-11-17 | 上海捷氢科技有限公司 | Fuel cell hydrogen storage system and fuel cell vehicle |
| CN113619380A (en) * | 2021-07-09 | 2021-11-09 | 东风汽车集团股份有限公司 | Gas replacement system of fuel cell hybrid electric vehicle and control method thereof |
| CN114243061A (en) * | 2021-10-15 | 2022-03-25 | 国网浙江省电力有限公司嘉善县供电公司 | Hydrogen energy chassis for emergency power supply vehicle |
-
2019
- 2019-12-27 CN CN201911383498.3A patent/CN111129544A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952633A (en) * | 2020-08-19 | 2020-11-17 | 上海捷氢科技有限公司 | Fuel cell hydrogen storage system and fuel cell vehicle |
| CN113619380A (en) * | 2021-07-09 | 2021-11-09 | 东风汽车集团股份有限公司 | Gas replacement system of fuel cell hybrid electric vehicle and control method thereof |
| CN114243061A (en) * | 2021-10-15 | 2022-03-25 | 国网浙江省电力有限公司嘉善县供电公司 | Hydrogen energy chassis for emergency power supply vehicle |
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