CN212934677U - Hydrogen supply system of hydrogen fuel cell stack - Google Patents
Hydrogen supply system of hydrogen fuel cell stack Download PDFInfo
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- CN212934677U CN212934677U CN202022052170.8U CN202022052170U CN212934677U CN 212934677 U CN212934677 U CN 212934677U CN 202022052170 U CN202022052170 U CN 202022052170U CN 212934677 U CN212934677 U CN 212934677U
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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
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Abstract
The utility model discloses a hydrogen fuel cell pile hydrogen supply system contains pile hydrogen supply controller and advances valve, proportional control valve, hydrogen flowmeter, ejector or return hydrogen pump, catch water and hydrogen row valve with one-level relief pressure valve, second grade relief pressure valve, hydrogen that pile hydrogen supply controller electricity is connected respectively. The utility model has the advantages that: simple structure, convenient operation, it is with low costs, can be used to the adjustment and stabilize the internal power of galvanic pile, avoid galvanic pile internal pressure to damage the galvanic pile because of undulant too big, can shift the most hydrogen of galvanic pile hydrogen exit to galvanic pile hydrogen import department reuse again to reduce the hydrogen consumption volume.
Description
Technical Field
The utility model relates to a fuel cell technical field, specific saying so relates to a hydrogen fuel cell pile hydrogen supply system.
Background
The hydrogen fuel cell takes hydrogen as fuel, and the hydrogen and oxygen generate electric energy through a proton exchange membrane after electrochemical reaction. It is known that hydrogen fuel cells (i.e., hydrogen fuel cell stacks) require hydrogen and oxygen, i.e., hydrogen supply piping and oxygen supply piping, to generate electricity.
Most of the existing hydrogen supply pipeline systems of the hydrogen fuel cell galvanic pile do not have good voltage stabilization and adjustment functions, and certain damage can be caused to the galvanic pile more or less; because the hydrogen fuel cell is electrically pushed with a hydrogen inlet and a hydrogen outlet, and the hydrogen outlet can be switched on and off at an uninterrupted frequency, the internal pressure of the electrical push can be influenced to fluctuate, and the galvanic pile is damaged. Even make, some existing hydrogen supply pipe-line systems have fine steady voltage adjustment function, but structural relatively more complicated usually, spare part is also more than, leads to the system relatively more complicated, and occupation space is big.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model aims to provide a simple structure just can fine adjustment stabilize the hydrogen fuel cell pile hydrogen supply system of pile internal pressure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a hydrogen supply system for a hydrogen fuel cell stack comprises a primary pressure reducing valve, a secondary pressure reducing valve, a hydrogen inlet valve, a proportion regulating valve, a hydrogen flowmeter, an ejector or a hydrogen return pump, a steam-water separator, a hydrogen discharge valve and a stack hydrogen supply controller;
wherein, the air inlet of the first-stage pressure reducing valve is communicated with an external hydrogen source access port, the air outlet is communicated with the air inlet of the second-stage pressure reducing valve, the air inlet of the second-stage pressure reducing valve is communicated with the air inlet of the hydrogen inlet valve, the air outlet of the hydrogen inlet valve is communicated with the air inlet of the proportional regulating valve, the air outlet of the proportional regulating valve is communicated with the air inlet of the hydrogen flowmeter, the air outlet of the hydrogen flowmeter is communicated with the hydrogen inlet of the hydrogen fuel cell stack through an ejector or directly communicated with the hydrogen inlet of the hydrogen fuel cell stack, the hydrogen outlet of the hydrogen fuel cell stack is communicated with the steam inlet of the steam-water separator, the steam outlet of the steam-water separator is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the ejector or a hydrogen return pump, and the water outlet of the steam-water separator is communicated with the, the gas outlet of the hydrogen discharge valve is communicated with an external tail discharge port through a three-way joint;
when the gas outlet of the hydrogen flowmeter is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the ejector, the steam outlet of the steam-water separator is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the ejector, and the stack hydrogen supply controller is respectively and electrically connected with the primary pressure reducing valve, the secondary pressure reducing valve, the hydrogen inlet valve, the proportion regulating valve, the hydrogen flowmeter, the steam-water separator and the hydrogen exhaust valve;
when the gas outlet of the hydrogen flowmeter is directly communicated with the hydrogen inlet of the hydrogen fuel cell stack, the steam outlet of the steam-water separator is communicated with the hydrogen inlet of the hydrogen fuel cell stack through a hydrogen return pump, and the stack hydrogen supply controller is respectively and electrically connected with the primary pressure reducing valve, the secondary pressure reducing valve, the hydrogen inlet valve, the proportion regulating valve, the hydrogen flowmeter, the hydrogen return pump, the steam-water separator and the hydrogen discharge valve.
Further, the hydrogen supply system for the hydrogen fuel cell stack further comprises a first pressure sensor, wherein the first pressure sensor is arranged on a gas path where the gas inlet of the secondary pressure reducing valve is communicated with the gas inlet of the proportional regulating valve, and is also electrically connected with the hydrogen supply controller for the stack.
Further, the hydrogen supply system of the hydrogen fuel cell stack further comprises a first temperature sensor and a second pressure sensor, and the first temperature sensor and the second pressure sensor are both electrically connected with the hydrogen supply controller of the stack;
when the gas outlet of the hydrogen flowmeter is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the ejector, the first temperature sensor and the second pressure sensor are sequentially arranged on a gas path through which the gas outlet of the ejector is communicated with the hydrogen inlet of the hydrogen fuel cell stack;
when the gas outlet of the hydrogen flowmeter is directly communicated with the hydrogen inlet of the hydrogen fuel cell stack, the first temperature sensor and the second pressure sensor are sequentially arranged on a gas path through which the gas outlet of the hydrogen flowmeter is communicated with the hydrogen inlet of the hydrogen fuel cell stack.
Further, the hydrogen supply system of the hydrogen fuel cell stack further comprises a third pressure sensor, and the third pressure sensor is electrically connected with the hydrogen supply controller of the stack;
when the steam outlet of the steam-water separator is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the ejector, the third pressure sensor is arranged on a gas path through which the steam outlet of the steam-water separator is communicated with the ejector;
when the steam outlet of the steam-water separator is communicated with the hydrogen inlet of the hydrogen fuel cell stack through the hydrogen return pump, the third pressure sensor is arranged on a gas path through which the steam outlet of the steam-water separator is communicated with the hydrogen return pump;
compared with the prior art, the utility model has the advantages that:
(1) the internal pressure of the galvanic pile can be regulated and stabilized, and the damage to the galvanic pile caused by overlarge fluctuation of the internal pressure of the galvanic pile is avoided;
(2) most hydrogen at the hydrogen outlet of the galvanic pile can be transferred to the hydrogen inlet of the galvanic pile for recycling, so that the hydrogen consumption can be effectively reduced;
(3) simple structure, convenient operation and low cost.
Drawings
FIG. 1 is a first embodiment of the present invention;
FIG. 2 is a second embodiment of the present invention;
description of reference numerals: 1. a primary pressure reducing valve; 2. a secondary pressure reducing valve; 3. a hydrogen inlet valve; 4. a proportional regulating valve; 5. a hydrogen gas flow meter; 6. an ejector; 7. a hydrogen return pump; 8. a steam-water separator; 9. a hydrogen discharge valve; 10. a stack hydrogen supply controller; a first pressure sensor 11; a first temperature sensor 12; a second pressure sensor 13; 14. a third pressure sensor; 15. a three-way joint; 100. a hydrogen source access port; 200. a hydrogen fuel cell stack; 300. an external tail outlet.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, the present invention provides a first embodiment of a hydrogen supply system for a hydrogen fuel cell stack:
in this embodiment, the hydrogen supply system for the hydrogen fuel cell stack specifically includes a primary pressure reducing valve 1, a secondary pressure reducing valve 2, a hydrogen inlet valve 3, a proportional regulating valve 4, a hydrogen flowmeter 5, an ejector 6, a steam-water separator 8, a hydrogen discharge valve 9, and a stack hydrogen supply controller 10;
the gas inlet of the primary pressure reducing valve 1 is communicated with an external hydrogen source inlet 100, the gas outlet is communicated with the gas inlet of the secondary pressure reducing valve 2, the gas inlet of the secondary pressure reducing valve 2 is communicated with the gas inlet of a hydrogen inlet valve 3, the gas outlet of the hydrogen inlet valve 3 is communicated with the gas inlet of a proportional regulating valve 4, the gas outlet of the proportional regulating valve 4 is communicated with the gas inlet of a hydrogen flowmeter 5, the gas outlet of the hydrogen flowmeter 5 is communicated with a hydrogen inlet 201 of a hydrogen fuel cell stack 200 through an ejector 6, a hydrogen outlet 202 of the hydrogen fuel cell stack 200 is communicated with a steam inlet of a steam-water separator 8, a steam outlet of the steam-water separator 8 is communicated with a hydrogen inlet 201 of the hydrogen fuel cell stack 200 through the ejector 6, a water outlet of the steam-water separator 8 is communicated with a gas inlet of a hydrogen discharge valve 9, and a gas outlet of the hydrogen discharge valve 9; the pile hydrogen supply controller 10 is respectively and electrically connected with a primary pressure reducing valve 1, a secondary pressure reducing valve 2, a hydrogen inlet valve 3, a proportion regulating valve 4, a hydrogen flowmeter 5, a steam-water separator 8 and a hydrogen exhaust valve 9;
wherein, the effect of one-level relief pressure valve 1 and second grade relief pressure valve 2 is: the hydrogen inlet valve is used for reducing the air pressure of the inlet gas before the hydrogen enters the inlet of the electric pile so as to prevent the electric pile from being damaged due to high-pressure impact; the hydrogen inlet valve is used for controlling the on-off of the hydrogen inlet path; the proportion regulating valve 4 is used for regulating the air pressure of the stable hydrogen gas inlet path; the hydrogen flowmeter 5 is used for feeding back the gas flow in the hydrogen inlet path so as to calculate the hydrogen-air metering ratio; the steam-water separator 8 is used for carrying out steam-liquid separation treatment on tail gas discharged from a hydrogen outlet of the galvanic pile; the hydrogen discharge valve 9 is used for controlling the on-off of the hydrogen discharge path.
Specifically, in the present embodiment, the hydrogen supply system for the hydrogen fuel cell stack further includes a first pressure sensor 11, and the first pressure sensor 11 is disposed on the gas path through which the gas inlet of the two-stage pressure reducing valve 2 is communicated with the gas inlet of the proportional regulating valve 4, and is further electrically connected to the stack hydrogen supply controller 10;
the first pressure sensor 11 functions to: the device is used for monitoring the pressure of gas entering the hydrogen inlet valve 9 in real time and feeding the pressure back to the galvanic pile hydrogen supply controller 10 in real time, so that the hydrogen inlet valve 3 is controlled to be switched on and off through the galvanic pile hydrogen supply controller 10, and the galvanic pile is protected.
Specifically, in this embodiment, the hydrogen supply system for the hydrogen fuel cell stack further includes a first temperature sensor 12 and a second pressure sensor 13, and the first temperature sensor 12 and the second pressure sensor 13 are sequentially disposed on a gas path where the gas outlet of the ejector 6 is communicated with the hydrogen inlet 201 of the hydrogen fuel cell stack 200, and are both electrically connected to the stack hydrogen supply controller 10;
the first temperature sensor 12 and the second pressure sensor 13 function to: the gas temperature and the gas pressure of the front section of the inlet of the galvanic pile are respectively monitored in real time, and the gas temperature and the gas pressure are fed back to the galvanic pile hydrogen supply controller 10 in real time, so that the primary pressure reducing valve 1, the secondary pressure reducing valve 2, the hydrogen inlet valve 3 and the proportion adjusting valve 4 are adjusted through the galvanic pile hydrogen supply controller 10, and the gas entering the hydrogen inlet 201 of the galvanic pile meets the corresponding working requirement.
Specifically, in the embodiment, the hydrogen supply system for the hydrogen fuel cell stack further includes a third pressure sensor 14, and the third pressure sensor 14 is disposed on a gas path through which a steam outlet of the steam-water separator 8 is communicated with the ejector 6, and is further electrically connected to the hydrogen supply controller 10 for the stack;
the third pressure sensor 14 functions to: for real-time monitoring and feedback of the pressure at the stack hydrogen outlet 202 to the stack hydrogen supply controller 10.
When the embodiment is used: firstly, hydrogen required by power generation of the hydrogen fuel cell stack is connected into a primary pressure reducing valve 1 from a hydrogen source inlet 100, is subjected to pressure reduction treatment by the primary pressure reducing valve 1 and a secondary pressure reducing valve 2, and then is sequentially input into the hydrogen fuel cell stack 200 through a hydrogen inlet valve 3, a proportional regulating valve 4, a hydrogen flowmeter 5, an ejector 6 and a hydrogen inlet 201 so as to be interacted with oxygen entering the hydrogen fuel cell stack 200 for power generation; steam and redundant hydrogen generated in the power generation process are discharged to the steam-water separator 8 at the hydrogen outlet 202 of the galvanic pile through the hydrogen outlet 202 of the galvanic pile, and after the steam-water separator 8 separates the steam and the hydrogen, the separated water is discharged through the hydrogen discharge valve 9, the three-way joint 15 and the tail discharge port 300, so that the separated hydrogen enters the ejector 6 for recycling.
Referring to fig. 2, the present invention provides a second embodiment of a hydrogen supply system for a hydrogen fuel cell stack:
in this embodiment, the hydrogen supply system for the hydrogen fuel cell stack specifically includes a stack hydrogen supply controller 10, and a primary pressure reducing valve 1, a secondary pressure reducing valve 2, a hydrogen inlet valve 3, a proportional regulating valve 4, a hydrogen flow meter 5, a hydrogen return pump 7, a steam-water separator 8 and a hydrogen discharge valve 9 which are electrically connected to the stack hydrogen supply controller 10;
the gas inlet of the primary pressure reducing valve 1 is communicated with an external hydrogen source inlet 100, the gas outlet is communicated with the gas inlet of the secondary pressure reducing valve 2, the gas inlet of the secondary pressure reducing valve 2 is communicated with the gas inlet of a hydrogen inlet valve 3, the gas outlet of the hydrogen inlet valve 3 is communicated with the gas inlet of a proportional regulating valve 4, the gas outlet of the proportional regulating valve 4 is communicated with the gas inlet of a hydrogen flowmeter 5, the gas outlet of the hydrogen flowmeter 5 is communicated with a hydrogen inlet 201 of a hydrogen fuel cell stack 200, a hydrogen outlet 202 of the hydrogen fuel cell stack 200 is communicated with a steam inlet of a steam-water separator 8, a steam outlet of the steam-water separator 8 is communicated with the hydrogen inlet 201 of the hydrogen fuel cell stack 200 through a hydrogen return pump 7, a water outlet of the steam-water separator 8 is communicated with a gas inlet of a hydrogen exhaust valve 9, and a gas outlet.
Specifically, in the present embodiment, the hydrogen supply system for a hydrogen fuel cell stack further includes a first pressure sensor 11, and the first pressure sensor 11 is disposed in a gas path where a gas inlet of the two-stage pressure reducing valve 2 is communicated with a gas inlet of the proportional regulating valve 4, and is further electrically connected to the stack hydrogen supply controller 10.
Specifically, in this embodiment, the hydrogen supply system for a hydrogen fuel cell stack further includes a first temperature sensor 12 and a second pressure sensor 13, and the first temperature sensor 12 and the second pressure sensor 13 are sequentially disposed in a gas path through which the gas outlet of the ejector 6 is communicated with the hydrogen inlet 201 of the hydrogen fuel cell stack 200, and are both electrically connected to the stack hydrogen supply controller 10.
Specifically, in the present embodiment, the hydrogen supply system for a hydrogen fuel cell stack further includes a third pressure sensor 14, and the third pressure sensor 14 is disposed in a gas path where a steam outlet of the steam-water separator 8 is communicated with the hydrogen return pump 7, and is further electrically connected to the stack hydrogen supply controller 10.
When the hydrogen generating device is used, firstly, hydrogen required by power generation of the hydrogen fuel cell stack is connected into the primary pressure reducing valve 1 from the hydrogen source inlet 100, is subjected to pressure reduction treatment by the primary pressure reducing valve 1 and the secondary pressure reducing valve 2, and then is sequentially input into the hydrogen fuel cell stack 200 through the hydrogen inlet valve 3, the proportion regulating valve 4, the hydrogen flowmeter 5, the ejector 6 and the hydrogen inlet 201 so as to supply oxygen entering the hydrogen fuel cell stack 200 to interact with each other for power generation; finally, water gas and redundant hydrogen gas generated in the power generation process are discharged to the steam-water separator 8 positioned at the hydrogen outlet 202 of the electric pile through the hydrogen outlet 202 of the electric pile, after the water gas and the hydrogen gas are separated by the steam-water separator 8, the separated water is discharged through the hydrogen discharge valve 9, the three-way joint 15 and the tail discharge port 300, and the separated hydrogen gas is transferred to a hydrogen gas inlet for recycling through the hydrogen return pump 7.
The utility model discloses mainly adopt the proportional control valve to combine the pressure sensor who sets up in hydrogen inlet outlet department to realize stable to the adjustment of pile internal pressure.
Finally, the above description is only the embodiments of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A hydrogen fuel cell stack hydrogen supply system, characterized by: the system comprises a primary pressure reducing valve (1), a secondary pressure reducing valve (2), a hydrogen inlet valve (3), a proportion regulating valve (4), a hydrogen flowmeter (5), an ejector (6) or a hydrogen return pump (7), a steam-water separator (8), a hydrogen discharge valve (9) and a pile hydrogen supply controller (10);
wherein the air inlet of the primary pressure reducing valve (1) is communicated with an external hydrogen source access port (100), the air outlet is communicated with the air inlet of the secondary pressure reducing valve (2), the air inlet of the secondary pressure reducing valve (2) is communicated with the air inlet of the hydrogen inlet valve (3), the air outlet of the hydrogen inlet valve (3) is communicated with the air inlet of the proportional regulating valve (4), the air outlet of the proportional regulating valve (4) is communicated with the air inlet of the hydrogen flowmeter (5), the air outlet of the hydrogen flowmeter (5) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through an ejector (6) or directly communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200), and the hydrogen outlet (202) of the hydrogen fuel cell stack (200) is communicated with the steam inlet of the steam-water separator (8), a steam outlet of the steam-water separator (8) is communicated with a hydrogen inlet (201) of the hydrogen fuel cell stack (200) through an ejector (6) or a hydrogen return pump (7), a water outlet of the steam-water separator (8) is communicated with a gas inlet of a hydrogen discharge valve (9), and a gas outlet of the hydrogen discharge valve (9) is communicated with an external tail discharge port (300) through a three-way joint (15);
when the gas outlet of the hydrogen flowmeter (5) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the ejector (6), the steam outlet of the steam-water separator (8) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the ejector (6), and the stack hydrogen supply controller (10) is respectively electrically connected with the primary pressure reducing valve (1), the secondary pressure reducing valve (2), the hydrogen inlet valve (3), the proportional regulating valve (4), the hydrogen flowmeter (5), the steam-water separator (8) and the hydrogen exhaust valve (9);
when the gas outlet of the hydrogen flowmeter (5) is directly communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200), the steam outlet of the steam-water separator (8) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the hydrogen return pump (7), and the stack hydrogen supply controller (10) is respectively electrically connected with the primary pressure reducing valve (1), the secondary pressure reducing valve (2), the hydrogen inlet valve (3), the proportional regulating valve (4), the hydrogen flowmeter (5), the hydrogen return pump (7), the steam-water separator (8) and the hydrogen discharge valve (9).
2. The hydrogen fuel cell stack hydrogen supply system according to claim 1, characterized in that: the hydrogen supply system further comprises a first pressure sensor (11), wherein the first pressure sensor (11) is arranged on a gas path where the gas inlet of the secondary pressure reducing valve (2) is communicated with the gas inlet of the proportional regulating valve (4), and is also electrically connected with the galvanic pile hydrogen supply controller (10).
3. The hydrogen fuel cell stack hydrogen supply system according to claim 1 or 2, characterized in that: the hydrogen supply system also comprises a first temperature sensor (12) and a second pressure sensor (13), and the first temperature sensor (12) and the second pressure sensor (13) are both also electrically connected with the pile hydrogen supply controller (10);
when the gas outlet of the hydrogen flowmeter (5) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the ejector (6), the first temperature sensor (12) and the second pressure sensor (13) are sequentially arranged on a gas path through which the ejector (6) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200);
when the gas outlet of the hydrogen flowmeter (5) is directly communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200), the first temperature sensor (12) and the second pressure sensor (13) are sequentially arranged on a gas path through which the gas outlet of the hydrogen flowmeter (5) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200).
4. A hydrogen fuel cell stack hydrogen supply system according to claim 3, characterized in that: a third pressure sensor (14) is further included, and the third pressure sensor (14) is electrically connected with the stack hydrogen supply controller (10);
when a steam outlet of the steam-water separator (8) is communicated with a hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the ejector (6), the third pressure sensor (14) is arranged on a gas path through which the steam outlet of the steam-water separator (8) is communicated with the ejector (6);
when the steam outlet of the steam-water separator (8) is communicated with the hydrogen inlet (201) of the hydrogen fuel cell stack (200) through the hydrogen return pump (7), the third pressure sensor (14) is arranged on a gas path through which the steam outlet of the steam-water separator (8) is communicated with the hydrogen return pump (7).
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| CN202022052170.8U CN212934677U (en) | 2020-09-18 | 2020-09-18 | Hydrogen supply system of hydrogen fuel cell stack |
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| CN202022052170.8U CN212934677U (en) | 2020-09-18 | 2020-09-18 | Hydrogen supply system of hydrogen fuel cell stack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094140A (en) * | 2021-09-28 | 2022-02-25 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
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2020
- 2020-09-18 CN CN202022052170.8U patent/CN212934677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094140A (en) * | 2021-09-28 | 2022-02-25 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
| CN114094140B (en) * | 2021-09-28 | 2024-04-16 | 东风汽车集团股份有限公司 | Hydrogen fuel cell vehicle, hydrogen supply system and hydrogen supply method thereof |
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