CN107942258B - Fuel cell air intake ratio control system and fuel cell air intake control method - Google Patents
Fuel cell air intake ratio control system and fuel cell air intake control method Download PDFInfo
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- CN107942258B CN107942258B CN201711142849.2A CN201711142849A CN107942258B CN 107942258 B CN107942258 B CN 107942258B CN 201711142849 A CN201711142849 A CN 201711142849A CN 107942258 B CN107942258 B CN 107942258B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/3865—Arrangements for measuring battery or accumulator variables related to manufacture, e.g. testing after manufacture
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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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
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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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
- H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
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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
- H01M8/04298—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
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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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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a fuel cell air intake ratio control system and a fuel cell air intake control method, comprising a hydrogen tank and a nitrogen tank, wherein the outlets of the hydrogen tank and the nitrogen tank are communicated with the inlet of a first flow controller through a pipeline, and the outlet of the first flow controller is communicated with the inlet of a fuel cell stack; the system also comprises an air compressor, wherein the outlet of the air compressor is communicated with the inlet of the second flow controller through a pipeline, and the outlet of the second flow controller is communicated with the inlet of the fuel cell stack; the system also comprises a terminal controller, and the terminal controller is used for controlling the output quantity of the first flow controller and the second flow controller. The system can stably measure the performance parameters of the fuel cell under the condition that the air inlet ratio of the anode and the cathode changes, and can more comprehensively know the performance of the galvanic pile. And the fuel cell designed at this time belongs to green energy, and the product after the test reaction only generates water and does not generate other pollutants.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell air intake ratio control system and a fuel cell air intake control method.
Background
A fuel cell is an electrochemical energy converter that converts chemical energy in a fuel directly into direct current. It is the most promising new generation of green energy power system in the 21 st century, and no pollution products are generated after the combustion. The fuel cell does not need to be charged and can immediately generate electric power as long as fuel is supplied. Fuel cells have many, but not limited, sources of fuel. The fuel cell can then have a high energy conversion rate in terms of conversion efficiency because it does not need to follow the carnot cycle. The fuel cell can provide power to any desired device, such as a car, a telephone, or even a house where we live. Fuel cells are particularly advantageous for low power devices, where the device can be continuously charged, thereby effectively extending the operating time of the device. With the same volume and mass, the fuel cell outputs much higher energy than the other cells. This is a great advantage for fuel cells. Batteries are mainly classified into alkaline fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, solid oxide fuel cells and proton exchange membrane fuel cells according to the kinds of electrolytes used in the batteries. Electrochemical reactions in the proton exchange membrane fuel cell simultaneously occur on two sides of the membrane, and repeated experimental measurement must be carried out in the process of measuring parameters of the fuel cell. The influence of other unnecessary factors on the experimental determination is reduced in the experimental determination process. The purpose of this determination is to find a perfect operating condition for the plant.
Disclosure of Invention
The purpose of the invention is: the fuel cell air inlet ratio control system and the fuel cell air inlet control method can realize control of the air inlet ratio in the air inlet process, so that the performance test of the fuel cell is carried out.
In order to achieve the purpose, the invention adopts the technical scheme that:
the fuel cell air inlet ratio control system comprises a hydrogen tank and a nitrogen tank, wherein outlets of the hydrogen tank and the nitrogen tank are communicated with an inlet of a first flow controller through pipelines, and an outlet of the first flow controller is communicated with an inlet of a fuel cell stack;
the system also comprises an air compressor, wherein an outlet of the air compressor is communicated with an inlet of a second flow controller through a pipeline, and an outlet of the second flow controller is communicated with an inlet of the fuel cell stack;
the system also comprises a terminal controller, wherein the terminal controller is used for controlling the output quantity of the first flow controller and the second flow controller.
The invention also has the following features:
the outlet of the first flow controller is communicated with the inlet of the first flow divider, the first flow divider is provided with two outlets which are respectively communicated with the inlet of the fuel cell stack and the inlet of the humidifying device, the outlet of the second flow controller is communicated with the inlet of the second flow divider, the second flow divider is provided with two outlets which are respectively communicated with the inlet of the fuel cell stack and the inlet of the humidifying device, and the outlet of the humidifying device is communicated with the inlet of the fuel cell stack.
The fuel cell stack is further connected with a cooling device, a cooling medium outlet of the cooling device is communicated with a cooling medium inlet of the fuel cell stack, a cooling medium outlet of the fuel cell stack is communicated with a cooling medium inlet of the cooling device, and the cooling device is further connected with a drain pipe.
The export of hydrogen gas jar and nitrogen gas jar and two import intercommunications of three-way plug valve, another export of three-way plug valve and the import intercommunication of first relief pressure valve, the export of first relief pressure valve and the import intercommunication of first filter, the export of first filter and the import intercommunication of first solenoid valve, the export of first solenoid valve and the import intercommunication of first flowmeter, the export of first flowmeter and the import intercommunication of first flow controller, the export order of first filter is provided with first pressure sensor and first temperature sensor, terminal control ware is used for controlling opening and close of first shunt, three-way plug valve, first relief pressure valve and first solenoid valve.
The outlet of the air compressor is communicated with the inlet of the stop valve, the outlet of the stop valve is communicated with the inlet of the second reducing valve, the outlet of the second reducing valve is communicated with the inlet of the second filter, the outlet of the second filter is communicated with the inlet of the second electromagnetic valve, the outlet of the second electromagnetic valve is communicated with the inlet of the second flow meter, the outlet of the second flow meter is communicated with the inlet of the second flow controller, the outlet of the second filter is sequentially provided with a second pressure sensor and a second temperature sensor, and the terminal controller is used for controlling the opening and closing of the humidifying device, the stop valve, the second reducing valve and the second electromagnetic valve.
And the outlets of the hydrogen tank and the nitrogen tank are respectively provided with an electromagnetic valve, and the terminal controller is used for controlling the opening and closing of the electromagnetic valves.
Compared with the prior art, the invention has the technical effects that: the fuel cell stack system for testing different air input ratios can be known by the method, the method is relatively safe, the performance parameters of the fuel cell under the condition that the air input ratio of the anode and the cathode changes can be stably measured, and the performance of the fuel cell stack can be more comprehensively known. And the fuel cell designed at this time belongs to green energy, and the product after the test reaction only generates water and does not generate other pollutants.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention will be further explained below with reference to fig. 1:
a fuel cell air inlet ratio control system comprises a hydrogen tank 10 and a nitrogen tank 20, wherein the outlets of the hydrogen tank 10 and the nitrogen tank 20 are communicated with the inlet of a first flow controller 30 through pipelines, and the outlet of the first flow controller 30 is communicated with the inlet of a fuel cell stack 40;
the system further includes an air compressor 50, an outlet of the air compressor 50 being in communication with an inlet of a second flow controller 60 via a conduit, an outlet of the second flow controller 60 being in communication with an inlet of the fuel cell stack 40;
the system further comprises a terminal controller 90, wherein the terminal controller 90 is used for controlling the output quantity of the first flow controller 30 and the second flow controller 60, and the terminal controller 90 is electrically connected with the first flow controller 30 and the second flow controller 60.
Further, the outlet of the first flow controller 30 is communicated with the inlet of the first flow divider 31, the first flow divider 31 is provided with two outlets respectively communicated with the inlet of the fuel cell stack 40 and the inlet of the humidifying device 70, the outlet of the second flow controller 60 is communicated with the inlet of the second flow divider 61, the second flow divider 61 is provided with two outlets respectively communicated with the inlet of the fuel cell stack 40 and the inlet of the humidifying device 70, and the outlet of the humidifying device 70 is communicated with the inlet of the fuel cell stack 40;
when humidification is required, the terminal controller 90 controls the first and second flow dividers 31 and 61 to allow the gas to flow through the humidification device 70 to control the humidity and enter the fuel cell stack 40, and after the gas fully reacts in the fuel cell stack 40, the gas is subjected to water-vapor separation by the cooling device 80, and the water is discharged through the water discharge pipe 81. The whole operating system adopts terminal-controlled feedback regulation, sends out instructions through the terminal controller 90, and feeds back data to the terminal controller 90 under the condition that experimental data are stable, and analyzes and records the data.
Further, the fuel cell stack 40 is further connected to a cooling device 80, a cooling medium outlet of the cooling device 80 is communicated with a cooling medium inlet of the fuel cell stack 40, a cooling medium outlet of the fuel cell stack 40 is communicated with a cooling medium inlet of the cooling device 80, and the cooling device 80 is further connected to a drain pipe 81;
after the fuel cell stack 40 has fully reacted, the gas is subjected to water-vapor separation by the cooling device 80, and water is discharged through the water discharge pipe 81.
Specifically, the outlets of the hydrogen tank 10 and the nitrogen tank 20 are communicated with two inlets of a three-way plug valve 32, another outlet of the three-way plug valve 32 is communicated with an inlet of a first reducing valve 33, an outlet of the first reducing valve 33 is communicated with an inlet of a first filter 34, an outlet of the first filter 34 is communicated with an inlet of a first electromagnetic valve 35, an outlet of the first electromagnetic valve 35 is communicated with an inlet of a first flowmeter 38, an outlet of the first flowmeter 38 is communicated with an inlet of a first flow controller 30, a first pressure sensor 36 and a first temperature sensor 37 are sequentially arranged at the outlet of the first filter 34, and the terminal controller 90 is used for controlling the opening and closing of the first flow divider 31, the three-way plug valve 32, the first reducing valve 33 and the first electromagnetic valve 35; the terminal controller 90 is electrically connected to the first shunt 31, the three-way plug valve 32, the first pressure reducing valve 33 and the first solenoid valve 35.
Specifically, the outlet of the air compressor 50 is communicated with the inlet of a stop valve 51, the outlet of the stop valve 51 is communicated with the inlet of a second reducing valve 52, the outlet of the second reducing valve 52 is communicated with the inlet of a second filter 53, the outlet of the second filter 53 is communicated with the inlet of a second electromagnetic valve 54, the outlet of the second electromagnetic valve 54 is communicated with the inlet of a second flow meter 55, the outlet of the second flow meter 55 is communicated with the inlet of a second flow controller 60, the outlet of the second filter 53 is sequentially provided with a second pressure sensor 56 and a second temperature sensor 57, and the terminal controller 90 is used for controlling the opening and closing of the humidifying device 70, the stop valve 51, the second reducing valve 52 and the second electromagnetic valve 54; the terminal controller 90 is electrically connected to the humidifier 70, the stop valve 51, the second pressure reducing valve 52 and the second electromagnetic valve 54.
Preferably, the outlets of the hydrogen tank 10 and the nitrogen tank 20 are respectively provided with an electromagnetic valve, and the terminal controller 90 is used for controlling the opening and closing of the electromagnetic valves.
In the actual operation process, if some abnormal conditions occur, the terminal controller 90 controls the electromagnetic valve of the nitrogen tank 20 to open to release nitrogen, and closes the electromagnetic valve of the hydrogen tank 10, so that all hydrogen in the gas channel is discharged, and the equipment is conveniently and safely overhauled.
The flow direction of the gas split flow is determined by the terminal controller 90, the whole operation system adopts terminal control feedback regulation, an instruction is sent by the terminal controller 90, under the condition that experimental data are stable, the data of the fuel cell stack 40 is fed back to the terminal controller 90, and the data fed back by the fuel cell stack 40 is analyzed and recorded;
specifically, the terminal controller 90 sends an instruction to the flow controllers according to the measurement data of the flow meters to adjust the gas flow, the first flow controller 30 and the second flow controller 60 control the volume of the gas introduced into the flow controllers, and when a single variable is controlled, terminal control feedback adjustment is adopted, so that the temperature, the pressure and other related parameters are stable when the whole system works, and thus the test data is determined, and the influence of the gas inlet ratio on the performance of the fuel cell is determined.
The invention also provides a working method of the fuel cell air inlet ratio control system, which is characterized in that other related variables are kept unchanged by changing the air inlet ratio of the cathode and the anode and adopting a single variable method, the air cylinder pressure valves of the hydrogen tank 10 and the nitrogen tank 20 are firstly opened, the air compressor 50 is opened, the second reducing valve 52 is adjusted, and the second reducing valve 52 is adjusted to be 0.2-0.3 MPa; the first pressure reducing valve 33 is adjusted, and the first pressure reducing valve 33 is adjusted to 0.5 MPa. And the air-lock valve is opened so that intake pressure is generated. The mixed gas and the air pass through the first filter 34 and the second filter 53 respectively, small solid impurities in the mixed gas and the air are filtered, and the pressure of the mixed gas and the air is detected by the first pressure sensor 36 and the second pressure sensor 56; then the mixed gas and air respectively pass through the first electromagnetic valve 35 and the second electromagnetic valve 54, and the terminal controller 90 is used for controlling the opening and closing of the first electromagnetic valve 35 and the second electromagnetic valve 54 and controlling the entering and stopping of the mixed gas and air; the mixed gas and the air respectively pass through the first flow controller 30 and the second flow controller 60, and the terminal controller 90 is used for controlling the first flow controller 30 and the second flow controller 60 to regulate the volume of the introduced gas.
The invention makes the reaction gas (H)2And O2) Under the condition of respectively setting other same variables, the influence of the difference of the air intake ratio of the anode and the cathode on the performance of the proton exchange membrane fuel cell is respectively measured.
The invention is described in further detail below with reference to the accompanying drawing 1: all the steps of the test operation are instructed and controlled by the terminal controller 90, and after the terminal controller 90 issues a ventilation instruction and determines the intake ratio of the two electrodes, the hydrogen tank 10 and the air compressor 50 are controlled to release gas with a quantitative ratio. The gas will pass through three-way stopcock valve 32, pressure reducing valve, filter, pressure sensor, temperature sensor, and solenoid valve. The first flow meter 38 monitors the actual flow rate of hydrogen and the first flow controller 30 adjusts the hydrogen flow rate. The gas will then be split via the first splitter 31 and the terminal controller 90 determines the split flow direction of the gas. When humidification is required, the terminal controller 90 controls the gas to flow through the humidification device 70 to control the humidity, and then the gas enters the fuel cell stack 40, after the gas fully reacts in the fuel cell stack 40, the gas is subjected to water-vapor separation by the cooling device 80, and the water is discharged through the water discharge pipe 81. The whole operating system adopts terminal-controlled feedback regulation, sends out instructions through the terminal controller 90, and feeds back data to the terminal controller 90 under the condition that experimental data are stable, and analyzes and records the data.
The fuel cell of the system can be used for various transportation tools, can also be used as a standby power supply or a portable power supply, and can also be used in space stations. Meanwhile, the fuel cell of the invention can also be used for distributed power generation.
The whole operating system adopts terminal-controlled feedback regulation, sends out instructions through the terminal controller 90, and feeds back data to the terminal controller 90 under the condition that experimental data are stable, and analyzes and records the data. In summary, the fuel cell air intake ratio control system adjusts the operating state of the fuel cell under the condition of controlling a single variable, and compares the operating state with a plurality of groups of experimental data.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. A fuel cell intake control method characterized by: the method uses a fuel cell air intake ratio control system,
the fuel cell air inlet ratio control system comprises a hydrogen tank (10) and a nitrogen tank (20), wherein the outlets of the hydrogen tank (10) and the nitrogen tank (20) are communicated with the inlet of a first flow controller (30) through pipelines, and the outlet of the first flow controller (30) is communicated with the inlet of a fuel cell stack (40);
the fuel cell system further comprises an air compressor (50), wherein an outlet of the air compressor (50) is communicated with an inlet of a second flow controller (60) through a pipeline, and an outlet of the second flow controller (60) is communicated with an inlet of the fuel cell stack (40);
the terminal controller (90) is used for controlling the output quantity of the first flow controller (30) and the second flow controller (60);
the outlet of the first flow controller (30) is communicated with the inlet of a first flow divider (31), the first flow divider (31) is provided with two outlets which are respectively communicated with the inlet of the fuel cell stack (40) and the inlet of a humidifying device (70), the outlet of the second flow controller (60) is communicated with the inlet of a second flow divider (61), the second flow divider (61) is provided with two outlets which are respectively communicated with the inlet of the fuel cell stack (40) and the inlet of the humidifying device (70), and the outlet of the humidifying device (70) is communicated with the inlet of the fuel cell stack (40);
the fuel cell stack (40) is also connected with a cooling device (80), a cooling medium outlet of the cooling device (80) is communicated with a cooling medium inlet of the fuel cell stack (40), a cooling medium outlet of the fuel cell stack (40) is communicated with a cooling medium inlet of the cooling device (80), and the cooling device (80) is also connected with a water drain pipe (81);
the outlets of the hydrogen tank (10) and the nitrogen tank (20) are communicated with two inlets of a three-way plug valve (32), the other outlet of the three-way plug valve (32) is communicated with the inlet of a first reducing valve (33), the outlet of the first pressure reducing valve (33) is communicated with the inlet of a first filter (34), the outlet of the first filter (34) is communicated with the inlet of a first electromagnetic valve (35), the outlet of the first electromagnetic valve (35) is communicated with the inlet of a first flowmeter (38), the outlet of the first flow meter (38) communicates with the inlet of the first flow controller (30), a first pressure sensor (36) and a first temperature sensor (37) are sequentially arranged at the outlet of the first filter (34), the terminal controller (90) is used for controlling the opening and closing of the first shunt (31), the three-way plug valve (32), the first reducing valve (33) and the first electromagnetic valve (35);
the outlet of the air compressor (50) is communicated with the inlet of a stop valve (51), the outlet of the stop valve (51) is communicated with the inlet of a second reducing valve (52), the outlet of the second pressure reducing valve (52) is communicated with the inlet of a second filter (53), the outlet of the second filter (53) is communicated with the inlet of a second electromagnetic valve (54), the outlet of the second electromagnetic valve (54) is communicated with the inlet of a second flow meter (55), the outlet of the second flow meter (55) communicates with the inlet of a second flow controller (60), a second pressure sensor (56) and a second temperature sensor (57) are sequentially arranged at the outlet of the second filter (53), the terminal controller (90) is used for controlling the opening and closing of the humidifying device (70), the stop valve (51), the second reducing valve (52) and the second electromagnetic valve (54);
the outlets of the hydrogen tank (10) and the nitrogen tank (20) are respectively provided with an electromagnetic valve, and the terminal controller (90) is used for controlling the opening and closing of the electromagnetic valves;
the fuel cell air inlet control method comprises the following steps:
firstly, opening gas cylinder pressure valves of a hydrogen gas tank (10) and a nitrogen gas tank (20);
secondly, opening the air compressor (50), adjusting a second pressure reducing valve (52), and adjusting the second pressure reducing valve (52) to 0.2-0.3 MPa;
thirdly, adjusting the first pressure reducing valve (33), and adjusting the first pressure reducing valve (33) to 0.5 MPa;
fourthly, the mixed gas and the air respectively pass through a first filter (34) and a second filter (53) to filter small solid impurities in the mixed gas and the air, and the pressure of the mixed gas and the air is detected through a first pressure sensor (36) and a second pressure sensor (56);
fifthly, the mixed gas and the air respectively pass through a first electromagnetic valve (35) and a second electromagnetic valve (54), and a terminal controller (90) is used for controlling the opening and closing of the first electromagnetic valve (35) and the second electromagnetic valve (54) and controlling the entering and stopping of the mixed gas and the air;
and sixthly, the mixed gas and the air respectively pass through the first flow controller (30) and the second flow controller (60), and the volume of the introduced gas is adjusted by controlling the first flow controller (30) and the second flow controller (60) through the terminal controller (90).
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| CN201711142849.2A CN107942258B (en) | 2017-11-17 | 2017-11-17 | Fuel cell air intake ratio control system and fuel cell air intake control method |
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| CN110828864B (en) * | 2019-11-01 | 2021-02-19 | 中车工业研究院有限公司 | Non-auxiliary starting method and system for hydrogen-oxygen electrochemical reaction device |
| CN111640967B (en) * | 2020-07-15 | 2024-01-23 | 中国华能集团清洁能源技术研究院有限公司 | Air inlet system of molten carbonate fuel cell stack and working method thereof |
| CN112228331B (en) * | 2020-09-15 | 2022-03-15 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Hydrogen circulating pump capability test system |
| CN112768731B (en) * | 2020-12-18 | 2022-10-04 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy automobile fuel cell stack control system |
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| CN106410243A (en) * | 2016-11-29 | 2017-02-15 | 北京建筑大学 | Experiment table feedback adjusting system for fuel cell and working method of experiment table feedback adjusting system |
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