CN109411784B - Fuel cell engine air supply system of commercial vehicle - Google Patents
Fuel cell engine air supply system of commercial vehicle Download PDFInfo
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- CN109411784B CN109411784B CN201811507767.8A CN201811507767A CN109411784B CN 109411784 B CN109411784 B CN 109411784B CN 201811507767 A CN201811507767 A CN 201811507767A CN 109411784 B CN109411784 B CN 109411784B
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- 239000000446 fuel Substances 0.000 title claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 85
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 85
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000007789 gas Substances 0.000 claims description 24
- 239000012528 membrane Substances 0.000 abstract description 8
- 150000002431 hydrogen Chemical class 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000003487 electrochemical reaction Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
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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
- H01M8/04753—Pressure; Flow of fuel cell reactants
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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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
- H01M8/04141—Humidifying by water containing exhaust gases
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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
- H01M8/04828—Humidity; Water content
- H01M8/04835—Humidity; Water content of fuel cell reactants
-
- 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
- H01M8/04828—Humidity; Water content
- H01M8/04843—Humidity; Water content of fuel cell exhausts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a commercial vehicle fuel cell engine air supply system which comprises an internal resistance detector, a controller, a fuel cell stack, a hydrogen supply system and an air supply system. The fuel cell engine air supply system of the commercial vehicle realizes the recycling of hydrogen, can accurately control the supply flow and pressure of hydrogen and air, and ensures that the fuel cell can continuously and stably generate electricity. Meanwhile, the invention can detect the internal resistance of the fuel cell stack and judge the humidity of the proton exchange membrane, and effectively manage the inside of the fuel cell by adjusting the opening of the tail exhaust valve and the opening of the humidifying valve, thereby improving the efficiency and the output performance of the fuel cell.
Description
Technical Field
The invention belongs to the technical field of fuel cell engines, and particularly relates to a gas supply system of a commercial vehicle fuel cell engine.
Background
The fuel cell engine is a main power source of the fuel cell automobile, and is a high-efficiency power generation device which does not burn fuel and directly converts chemical energy of the fuel into electric energy in an electrochemical reaction mode. The core component of the fuel cell stack is a fuel cell stack formed by connecting a plurality of single cells in series, and is also provided with a hydrogen supply system, an air supply system, a water heat management system, a control system and the like. Only if these auxiliary systems are matched to proper and normal operation, the normal operation of the fuel cell engine can be ensured. The hydrogen supply system and the air supply system provide enough oxidant and reductant for the galvanic pile to generate electricity, the electrochemical reaction between oxyhydrogen is influenced by the gas flow and the gas pressure, and the two systems need to provide enough reactant gas flow and pressure to meet the operation requirements of the galvanic pile when the galvanic pile is in operation.
In addition, fuel cell power generation is an electrochemical reaction accompanied by water, and water generated by internal reactions of the fuel cell exists in the fuel cell in a gaseous state and a liquid state, and the state and the content thereof are directly related to the performance of the cell. When the electric pile operates, the proton exchange membrane needs to keep certain humidity, the membrane is dried due to the fact that the water content is too low, and the internal resistance of the fuel cell is increased; if excessive water generated by the reaction is not removed in time, cathode flooding is caused, reaction efficiency is reduced, and therefore effective water management is required inside the fuel cell. There is a great relationship between the internal resistance of the fuel cell and the humidity of the proton exchange membrane, and the humidity of the membrane can be estimated by detecting the internal resistance of the cell stack.
Disclosure of Invention
In order to meet the requirement of the fuel cell on continuous and stable air supply and solve the problem of low humidity or flooding in the electric pile, the invention provides an air supply system of a fuel cell engine of a commercial vehicle.
The invention relates to a commercial vehicle fuel cell engine air supply system, which comprises an internal resistance detector, a controller, a fuel cell stack, a hydrogen supply system and an air supply system.
The fuel cell stack is internally provided with a hydrogen and air circulating channel and a hydrogen and air inlet and outlet.
The hydrogen supply system comprises hydrogen storage equipment, a pressure reducing valve, an air inlet electromagnetic valve, a proportional electromagnetic valve, a hydrogen pressure sensor, a gas-water separator, a drain valve, a hydrogen circulating pump and a check valve, wherein a pipeline of the hydrogen storage equipment is connected with the pressure reducing valve, a pipeline of the pressure reducing valve is connected with the air inlet electromagnetic valve, a pipeline of the air inlet electromagnetic valve is connected with the proportional electromagnetic valve, a pipeline of the proportional electromagnetic valve is connected with the hydrogen pressure sensor, and a pipeline of the hydrogen pressure sensor is connected to a hydrogen inlet of the fuel cell stack; the gas-water separator is provided with an air inlet, an air outlet and a water outlet; the hydrogen outlet pipeline of the fuel cell stack is connected with the gas inlet of the gas-water separator, the gas outlet pipeline of the gas-water separator is connected with the hydrogen circulating pump, and the hydrogen circulating pump pipeline is connected with the check valve; the check valve pipeline is connected to a pipeline between the proportional electromagnetic valve and the hydrogen pressure sensor; a water outlet of the gas-water separator is connected with a drain valve; the hydrogen storage device comprises a high-pressure hydrogen storage bottle and a primary pressure reducing device.
The air supply system comprises an air filter, an air flowmeter, an air compressor, an intercooler, a humidifier, an air temperature sensor, an air pressure sensor, a humidifying valve, a tail exhaust valve and a back pressure valve; the air filter is sequentially connected with an air flowmeter, an air compressor, an intercooler, a humidifier, an air temperature sensor and an air pressure sensor through pipelines, and the other end of the air pressure sensor is connected with an air inlet of the fuel cell stack through a pipeline; the humidifier is provided with a wet air inlet and a tail gas outlet; one end of the air discharge pipeline is connected with an air outlet of the fuel cell stack, the pipeline at the other end is connected with a humidifying valve and a tail discharge valve in parallel, and the other end of the humidifying valve is connected with a wet air inlet of the humidifier; the tail gas outlet pipeline of the humidifier is connected with a back pressure valve, and the pipeline at the other end of the tail gas outlet valve is connected to a pipeline between the humidifier and the back pressure valve.
The internal resistance detector is electrically connected with the fuel cell stack.
The controller is electrically connected with the internal resistance detector, an air inlet electromagnetic valve, a proportional electromagnetic valve, a hydrogen pressure sensor, a drain valve, a hydrogen circulating pump, an air flowmeter, an air compressor, an air temperature sensor, an air pressure sensor, a humidifying valve, a tail discharge valve and a back pressure valve in the air supply system.
The beneficial effects are that: the fuel cell engine air supply system of the commercial vehicle realizes the recycling of hydrogen, can accurately control the supply flow and pressure of hydrogen and air, and ensures that the fuel cell can continuously and stably generate electricity. Meanwhile, the invention can detect the internal resistance of the fuel cell stack and judge the humidity of the proton exchange membrane, and effectively manage the inside of the fuel cell by adjusting the opening of the tail exhaust valve and the opening of the humidifying valve, thereby improving the efficiency and the output performance of the fuel cell.
Drawings
FIG. 1 is a schematic diagram of a fuel cell air supply system for a commercial vehicle in accordance with the present invention.
In the figure: 1-hydrogen storage equipment, 2-pressure reducing valve, 3-air inlet electromagnetic valve, 4-proportion electromagnetic valve, 5-hydrogen pressure sensor, 6-gas-water separator, 7-drain valve, 8-hydrogen circulating pump, 9-check valve, 10-air filter, 11-air flowmeter, 12-air compressor, 13-intercooler, 14-humidifier, 15-air temperature sensor, 16-air pressure sensor, 17-humidification valve, 18-tail discharge valve, 19-back pressure valve, 20-fuel cell stack, 21-internal resistance detector, 22-controller.
Detailed Description
The fuel cell engine air supply system of the present invention is further described below with reference to the accompanying drawings:
in fig. 1, solid lines are used to represent gas line connections; the arrows on the solid lines are used for illustrating the gas flow direction in the pipeline; dashed lines are used to represent circuit connections; the arrow on the dotted line is used to indicate the direction of signal transmission in the circuit.
The fuel cell engine air supply system of the present invention includes a fuel cell stack 20, an internal resistance detector 21, a controller 22, a hydrogen gas supply system, and an air supply system.
The hydrogen supply system comprises a hydrogen storage device 1, a pressure reducing valve 2, an air inlet electromagnetic valve 3, a proportional electromagnetic valve 4, a hydrogen pressure sensor 5, a gas-water separator 6, a water discharging valve 7, a hydrogen circulating pump 8 and a check valve 9; the air supply system includes an air filter 10, an air flow meter 11, an air compressor 12, an intercooler 13, a humidifier 14, an air temperature sensor 15, an air pressure sensor 16, a humidification valve 17, a tail valve 18, and a back pressure valve 19.
The fuel cell stack 20 has a hydrogen and air flow channel therein, and a hydrogen and air inlet and outlet; the hydrogen supply system and the air supply system are respectively communicated with the fuel cell stack 20 through gas pipelines; the internal resistance detector 21 is electrically connected to the fuel cell stack 20; the controller 22 is electrically connected with the internal resistance detector 21, the air inlet electromagnetic valve 3, the proportional electromagnetic valve 4, the hydrogen pressure sensor 5, the drain valve 7, the hydrogen circulation pump 8, the air flow meter 11, the air compressor 12, the air temperature sensor 15, the air pressure sensor 16, the humidifying valve 17, the tail discharge valve 18 and the back pressure valve 19 in the air supply system.
The hydrogen storage device 1 in the hydrogen gas supply system includes a high-pressure hydrogen storage bottle and a primary pressure reducing means.
The gas-water separator 6 has an air inlet, an air outlet and a water outlet.
As shown in fig. 1, the hydrogen storage device 1 is communicated with the front end of a hydrogen gas inlet pipeline, and the tail end of the hydrogen gas inlet pipeline is communicated with a hydrogen gas inlet of the fuel cell stack 20; the hydrogen inlet pipeline is provided with a pressure reducing valve 2, an inlet electromagnetic valve 3, a proportional electromagnetic valve 4 and a hydrogen pressure sensor 5 in sequence along the hydrogen flow direction; one end of the hydrogen discharge pipeline is communicated with a hydrogen outlet of the fuel cell stack 20, and the other end of the hydrogen discharge pipeline is communicated with an air inlet of the gas-water separator 6; the gas outlet of the gas-water separator 6 is sequentially connected with a hydrogen circulating pump 8 and a check valve 9 through pipelines, and the check valve 9 is connected with a pipeline between the proportional electromagnetic valve 4 and the hydrogen pressure sensor 5 through pipelines; the water outlet of the gas-water separator 6 is connected with a drain valve 7, and the drain valve 7 is connected to a drain pipeline.
The air inlet pipe end of the air supply system is connected with the air inlet of the fuel cell stack 20; the air inlet pipeline is provided with an air filter 10, an air flowmeter 11, an air compressor 12, an intercooler 13, a humidifier 14, an air temperature sensor 15 and an air pressure sensor 16 in sequence along the air inlet direction; the humidifier 14 has a humid air inlet and a tail gas outlet; one end of the air discharge pipeline is connected with an air outlet of the fuel cell stack 20, the other end of the air discharge pipeline is connected with a humidifying valve 17 and a tail discharge valve 18 in parallel, and the other end of the humidifying valve 17 is connected with a wet air inlet of the humidifier 14; the tail gas outlet pipeline of the humidifier 14 is connected with a back pressure valve 19, and the other end pipeline of the tail gas discharge valve 18 is connected to a pipeline between the humidifier 14 and the back pressure valve 19.
When the fuel cell engine is started, the pressure reducing valve 2 in the hydrogen supply system reduces the high-pressure hydrogen in the hydrogen storage device 1 to the required pressure of the fuel cell stack 20, meanwhile, the air inlet electromagnetic valve 3 is opened, the hydrogen pressure sensor 5 collects a pressure signal at the hydrogen inlet of the fuel cell stack 20 and feeds the pressure signal back to the controller 22, and the controller 22 controls the opening of the proportional electromagnetic valve 4 and the rotating speed of the hydrogen circulating pump 8 according to the return signal, so that the pressure and the flow of the hydrogen entering the fuel cell stack 20 for reaction are increased or reduced, the reaction concentration of the hydrogen in the fuel cell stack 20 is ensured, and stable power generation of the fuel cell is facilitated; unreacted hydrogen enters the gas-water separator 6 from the hydrogen outlet of the fuel cell stack 20, liquid water and waste gas in the hydrogen are separated through the action of the gas-water separator 6, the water and the waste gas are discharged at intervals under the control of the controller 22, the water and the waste gas are controlled to be discharged by the water discharging valve 7, flooding caused by overhigh humidity of the hydrogen entering the stack is avoided, and accumulation of water and nitrogen in a hydrogen loop is prevented; unreacted hydrogen after being treated by the gas-water separator 6 under the action of the hydrogen circulating pump 8 is returned to the hydrogen inlet pipeline again through the pipeline and the one-way valve 9 for recycling, and the one-way valve 9 can prevent the hydrogen from flowing backwards when the hydrogen circulating pump 8 does not work.
When the fuel cell engine is started, air enters a pipeline after being filtered by the air filter 10, an air flow meter 11 and an air pressure sensor 16 collect air flow and pressure signals and feed the signals back to a controller 22, and the controller 22 regulates and controls the rotating speed of the air compressor 12 and the opening of a back pressure valve 19 according to the flow and pressure signals, so that the flow and the pressure of the air in the fuel cell stack 20 are accurately controlled, and the power generation efficiency of the fuel cell is ensured; the air filter 10 can filter out particulate matters, sulfides, carbon monoxide and other harmful gases in the air, and prevent the blockage of an air flow passage and the poisoning of a catalyst; the intercooler 13 cools the air temperature to the allowable air inlet temperature of the electric pile, and the air temperature sensor 15 monitors the air temperature at the inlet of the electric pile in real time; the internal resistance detector 21 detects the internal resistance of the fuel cell stack 20 and determines the humidity of the proton exchange membrane, the controller 22 adjusts the opening of the humidifying valve 17 and the tail gas discharging valve 18 according to the internal resistance of the fuel cell stack, if the humidity is too low, the tail gas discharging valve 18 is reduced or closed, meanwhile, the opening of the humidifying valve 17 is increased, and more moisture and heat in the reacted tail gas discharging air humidifies the dry gas entering the stack through the humidifier 14; if the humidity is too high, the opening of the tail discharge valve 18 is increased, and meanwhile, the opening of the humidifying valve 17 is reduced or closed, so that the moisture in the tail discharge air after the reaction of the cell stack 20 is discharged through the tail discharge valve 18 and the back pressure valve 19, and further, the influence of the flooding of the cell stack on the output power is prevented.
The air supply system of the commercial vehicle fuel cell engine can accurately control the air inlet pressure and flow, ensure continuous and stable power generation of the fuel cell, realize the humidity adjustment in the fuel cell through the detection and control of the internal resistance of a fuel cell stack, improve the power generation efficiency of the fuel cell, and provide powerful means for detecting and controlling the water content in a membrane during shutdown, purging and dewatering and low-temperature starting.
Claims (1)
1. A commercial vehicle fuel cell engine air supply system, characterized by: comprising the following steps: a fuel cell stack (20), an internal resistance detector (21), a controller (22), a hydrogen gas supply system and an air supply system,
the fuel cell stack (20) is internally provided with a hydrogen and air circulation channel and a hydrogen and air inlet and outlet;
the hydrogen supply system comprises a hydrogen storage device (1), a pressure reducing valve (2), an air inlet electromagnetic valve (3), a proportional electromagnetic valve (4), a hydrogen pressure sensor (5), a gas-water separator (6), a drain valve (7), a hydrogen circulating pump (8) and a check valve (9), wherein the hydrogen storage device (1) is connected with the pressure reducing valve (2) through a pipeline, the pressure reducing valve (2) is connected with the air inlet electromagnetic valve (3), the air inlet electromagnetic valve (3) is connected with the proportional electromagnetic valve (4) through a pipeline, the proportional electromagnetic valve (4) is connected with the hydrogen pressure sensor (5) through a pipeline, and the hydrogen pressure sensor (5) is connected to a hydrogen inlet of the fuel cell stack (20) through a pipeline; the gas-water separator (6) is provided with an air inlet, an air outlet and a water outlet; the hydrogen outlet pipeline of the fuel cell stack (20) is connected with the air inlet of the gas-water separator (6), the air outlet pipeline of the gas-water separator (6) is connected with the hydrogen circulating pump (8), and the pipeline of the hydrogen circulating pump (8) is connected with the check valve (9); the check valve (9) is connected to a pipeline between the proportional electromagnetic valve (4) and the hydrogen pressure sensor (5); a water outlet pipeline of the gas-water separator (6) is connected with a drain valve (7), and the drain valve (7) is connected to a water drain pipeline;
the air supply system comprises an air filter (10), an air flowmeter (11), an air compressor (12), an intercooler (13), a humidifier (14), an air temperature sensor (15), an air pressure sensor (16), a humidifying valve (17), a tail exhaust valve (18) and a back pressure valve (19); the air filter (10) is sequentially connected with an air flowmeter (11), an air compressor (12), an intercooler (13), a humidifier (14), an air temperature sensor (15) and an air pressure sensor (16) through pipelines, and the other end of the air pressure sensor (16) is connected to an air inlet of the fuel cell stack (20) through a pipeline; the humidifier (14) has a humid air inlet and a tail gas outlet; one end of the air discharge pipeline is connected with an air outlet of the fuel cell stack (20), the other end of the air discharge pipeline is connected with a humidifying valve (17) and a tail discharge valve (18) in parallel, and the other end of the humidifying valve (17) is connected with a wet air inlet of the humidifier (14); the tail gas outlet pipeline of the humidifier (14) is connected with a back pressure valve (19), and the pipeline at the other end of the tail gas discharge valve (18) is connected to a pipeline between the humidifier (14) and the back pressure valve (19);
the internal resistance detector (21) is electrically connected with the fuel cell stack (20);
the controller (22) is electrically connected with the internal resistance detector (21), an air inlet electromagnetic valve (3), a proportional electromagnetic valve (4), a hydrogen pressure sensor (5), a drain valve (7), a hydrogen circulating pump (8), an air flowmeter (11) in the air supply system, an air compressor (12), an air temperature sensor (15), an air pressure sensor (16), a humidifying valve (17), a tail discharge valve (18) and a back pressure valve (19); the hydrogen storage device (1) comprises a high-pressure hydrogen storage bottle and a primary pressure reducing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507767.8A CN109411784B (en) | 2018-12-11 | 2018-12-11 | Fuel cell engine air supply system of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507767.8A CN109411784B (en) | 2018-12-11 | 2018-12-11 | Fuel cell engine air supply system of commercial vehicle |
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| Publication Number | Publication Date |
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| CN109411784A CN109411784A (en) | 2019-03-01 |
| CN109411784B true CN109411784B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811507767.8A Active CN109411784B (en) | 2018-12-11 | 2018-12-11 | Fuel cell engine air supply system of commercial vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109980252A (en) * | 2019-03-25 | 2019-07-05 | 武汉海亿新能源科技有限公司 | A kind of fuel cell hydrogen and air supply control method, device and system |
| CN109921061B (en) * | 2019-03-27 | 2022-01-11 | 重庆长安汽车股份有限公司 | Fuel cell gas supply system and gas supply method |
| CN110165253B (en) * | 2019-05-06 | 2022-03-18 | 武汉理工大学 | Method and system for monitoring running state of PEM (proton exchange membrane) galvanic pile |
| CN110085896B (en) * | 2019-05-21 | 2021-08-27 | 武汉雄韬氢雄燃料电池科技有限公司 | High-integration fuel cell engine system |
| CN110190298A (en) * | 2019-06-03 | 2019-08-30 | 武汉众宇动力***科技有限公司 | Air supply system and Supply Method for hydrogen fuel cell |
| CN110247082B (en) * | 2019-07-10 | 2022-09-06 | 上海齐耀动力技术有限公司 | Hydrogen supply system of fuel cell |
| CN110459783A (en) * | 2019-09-10 | 2019-11-15 | 武汉雄韬氢雄燃料电池科技有限公司 | A kind of fuel battery engines air control system |
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| CN112599818A (en) * | 2020-12-14 | 2021-04-02 | 上海矗鑫实业有限公司 | Water management system of proton fuel cell |
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