CN110931831A - Fuel cell dynamic performance test system - Google Patents
Fuel cell dynamic performance test system Download PDFInfo
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- CN110931831A CN110931831A CN201911007058.8A CN201911007058A CN110931831A CN 110931831 A CN110931831 A CN 110931831A CN 201911007058 A CN201911007058 A CN 201911007058A CN 110931831 A CN110931831 A CN 110931831A
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- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 238000011056 performance test Methods 0.000 title abstract description 4
- 239000001257 hydrogen Substances 0.000 claims abstract description 61
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 9
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 3
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 208000033748 Device issues Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- H01M8/04313—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
- H01M8/04432—Pressure differences, e.g. between anode and cathode
-
- 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
- H01M8/0444—Concentration; Density
- H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
-
- 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
- H01M8/04537—Electric variables
- H01M8/04634—Other electric variables, e.g. resistance or impedance
-
- 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
- H01M8/04664—Failure or abnormal function
- H01M8/04679—Failure or abnormal function of fuel cell stacks
-
- 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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- 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 belongs to the field of batteries, and particularly relates to a dynamic performance test system of a fuel cell, which comprises a hydrogen supply unit for providing hydrogen meeting a preset standard, an oxygen supply unit for providing oxygen meeting the preset standard, a first differential pressure sensor connected with the anode of the fuel cell, and a second differential pressure sensor connected with the cathode of the fuel cell, wherein the hydrogen supply unit is connected with the first differential pressure sensor to provide hydrogen for the anode of the fuel cell, and the oxygen supply unit is connected with the second differential pressure sensor to provide oxygen for the cathode of the fuel cell; the testing system further comprises an electronic load, an alternating current impedance tester, a hydrogen concentration sensor and a data acquisition and processing unit, wherein the electronic load and the hydrogen concentration sensor are connected with the fuel cell. The invention has the beneficial effects that: the invention can find and adjust the water balance problem of the fuel cell in time, improve the efficiency of the fuel cell, prolong the service life of the fuel cell and ensure that the test operation of the fuel cell is safer and more reliable.
Description
Technical Field
The invention belongs to the field of batteries, and particularly relates to a fuel cell dynamic performance testing system.
Background
With the development and application of human science and technology, energy conservation and environmental protection become the core of human social sustainable development strategy, and are key factors influencing energy decision and technology guidance of countries in the world at present. The huge energy system established in the 20 th century cannot meet the requirements of the future society on an efficient, clean, economic and safe energy system, and the energy development faces huge challenges.
A fuel cell is a power generation device that directly converts chemical energy stored in a fuel and an oxidant into electrical energy through an electrochemical reaction. The fuel cell is different from a common power generation device in that chemical energy stored in fuel and oxidant is directly converted into electric energy through electrochemical reaction, the energy conversion rate is high, no pollution is caused to the environment, and the fuel cell has a wide development prospect. The fuel cell may be an ideal all-solid-state mechanical structure, i.e., without moving parts, and such a system would potentially have high reliability and long life. And when the fuel cell takes hydrogen and oxygen as fuel, water is generated, no pollution is caused, and the fuel cell can be recycled. According to the difference of electrolytes, fuel cells can be divided into five categories, namely a phosphate fuel cell, a proton exchange membrane fuel cell, an alkaline fuel cell, a molten carbonate fuel cell and a solid oxide fuel cell, particularly the proton exchange membrane fuel cell can work at low temperature and has higher power density, the power generation efficiency can reach about 60%, the emission is only water, the environment is not polluted, and the fuel cell can be applied to the fields of traffic, military, communication and the like. In testing the performance of fuel cells, it is difficult to test the conductivity, electrode flooding or dehydration and reactant gas distribution of the fuel cell proton exchange membrane during operation by experimental methods, since the MEA membrane of a proton exchange membrane fuel cell is less than 1mm thick.
Disclosure of Invention
In order to solve the above problems, the present invention provides a fuel cell dynamic performance testing system, which can find and adjust the water balance problem of the fuel cell in time, improve the efficiency of the fuel cell, prolong the service life of the fuel cell, and make the test operation of the fuel cell safer and more reliable.
The invention provides the following technical scheme:
a fuel cell dynamic performance test system comprises a hydrogen supply unit, an oxygen supply unit, a first differential pressure sensor and a second differential pressure sensor, wherein the hydrogen supply unit provides hydrogen meeting a preset standard, the oxygen supply unit provides oxygen meeting the preset standard, the first differential pressure sensor is connected with an anode of a fuel cell, the second differential pressure sensor is connected with a cathode of the fuel cell, the hydrogen supply unit is connected with the first differential pressure sensor to provide hydrogen for the anode of the fuel cell, and the oxygen supply unit is connected with the second differential pressure sensor to provide oxygen for the cathode of the fuel cell;
the testing system further comprises an electronic load, an alternating current impedance tester, a hydrogen concentration sensor and a data acquisition and processing unit, wherein the electronic load and the hydrogen concentration sensor are connected with the fuel cell, the electronic load is further connected with the alternating current impedance tester, and the first differential pressure sensor, the second differential pressure sensor, the alternating current impedance tester and the hydrogen concentration sensor are electrically connected with the data acquisition and processing unit.
Preferably, the hydrogen supply unit comprises a hydrogen cylinder, a first pressure reducing valve, a stabilizing valve, a first pressure sensor, a first temperature sensor, a hydrogen flowmeter and a first proportional valve which are sequentially connected through pipelines, the first proportional valve is connected with the first differential pressure sensor through a pipeline, and the first pressure sensor and the first temperature sensor are electrically connected with the data acquisition and processing unit.
Preferably, a first humidifier is arranged between the first proportional valve and the first differential pressure sensor in parallel, and a water inlet of the first humidifier is connected with a water outlet of the fuel cell.
Preferably, the first pressure reducing valve is also connected with a nitrogen cylinder.
Preferably, the oxygen supply unit comprises an air pump, a first electromagnetic exhaust valve, a second pressure reducing valve, a second pressure sensor, a second temperature sensor, an oxygen flow meter and a second proportional valve which are sequentially connected through pipelines, the second proportional valve is connected with a second differential pressure sensor through a pipeline, and the second pressure sensor and the second temperature sensor are electrically connected with the data acquisition and processing unit.
Preferably, a second humidifier is arranged between the second proportional valve and the second differential pressure sensor in parallel, and a water inlet of the second humidifier is connected with a water outlet of the fuel cell.
Preferably, the test system further comprises a radiator, a deionized water tank and a water pump which are sequentially connected, the water pump is connected with the water outlet of the fuel cell, and the radiator is respectively connected with the water inlets of the first humidifier and the second humidifier.
Preferably, the test system further comprises a tail gas treatment unit, the tail gas treatment unit comprises an electromagnetic valve, one end of the electromagnetic valve is connected with the hydrogen concentration sensor, the other end of the electromagnetic valve is divided into two branches, one branch is provided with a hydrogen recovery device, a first safety alarm device and a second electromagnetic exhaust valve in sequence, and the other branch is provided with a second safety alarm device and a third electromagnetic exhaust valve in sequence.
The invention has the beneficial effects that:
1. the fuel cell dynamic performance testing system can monitor the water quantity in the fuel cell to prevent and eliminate the water logging or dehydration fault of the cell, and in the reaction process of the fuel cell, the data acquisition and processing system judges whether the cell stack generates the water logging, the dehydration condition or the hydrogen leakage by monitoring the data of the alternating current impedance tester, the first differential pressure sensor, the second differential pressure sensor and the hydrogen concentration sensor, and displays the working data of the fuel cell;
when it is determined that hydrogen gas is leaked, the safety warning device issues a warning and immediately stops the operation of the fuel cell;
when the water flooding is judged, the data acquisition and processing device opens a nitrogen cylinder control valve, and residual gas and redundant accumulated water in the reaction area of the fuel cell are discharged through nitrogen;
when the dehydration is judged, the data acquisition and processing device accelerates the water circulation humidification with controllable temperature by controlling the water pump on the humidification route.
The data acquisition and processing device judges the performance and the water content of the fuel cell in real time according to the data acquired by the alternating-current impedance tester and the differential pressure sensor, controls whether the water pump, the radiator, the first proportional valve and the second proportional valve operate or not, prevents water faults in advance, maintains stable experimental parameter variables, and improves the accuracy of experimental data and the safety of an experimental table.
2. The data acquisition and processing device controls the water pump to accelerate the water circulation of the deionized water according to the temperature of the fuel cell, and pre-cools the fuel cell; and the data acquisition and processing device determines whether to operate an external cooling system to perform auxiliary cooling on the fuel cell according to the temperature of the fuel cell.
Drawings
FIG. 1 is a schematic diagram of a test system according to the present invention.
The designations in the drawings have the following meanings:
11-hydrogen cylinder 12-first pressure reducing valve 13-stabilizing valve 14-first pressure sensor 15-first temperature sensor 16-hydrogen flowmeter 17-first proportional valve 18-first humidifier 19-nitrogen cylinder
21-air pump 22-first electromagnetic exhaust valve 23-second pressure reducing valve 24-second pressure sensor 25-second temperature sensor 26-oxygen flow meter 27-second proportional valve 28-second humidifier
3-fuel cell 4-first differential pressure sensor 5-second differential pressure sensor
61-electronic load 62-alternating current impedance tester 63-hydrogen concentration sensor 64-data acquisition and processing unit 71-radiator 72-deionized water tank 73-water pump 81-electromagnetic valve 82-hydrogen recovery device 83-first safety alarm device 84-second electromagnetic exhaust valve 85-second safety alarm device 86-third electromagnetic exhaust valve
Detailed Description
The present invention will be described in detail with reference to the following examples.
Example 1
As shown in fig. 1, a fuel cell dynamic performance testing system includes a hydrogen supply unit for providing hydrogen meeting a preset standard, an oxygen supply unit for providing oxygen meeting the preset standard, a first differential pressure sensor 4 connected to an anode of a fuel cell 3, and a second differential pressure sensor 5 connected to a cathode of the fuel cell 3, wherein the hydrogen supply unit is connected to the first differential pressure sensor 4 for providing hydrogen to the anode of the fuel cell 3, and the oxygen supply unit is connected to the second differential pressure sensor 5 for providing oxygen to the cathode of the fuel cell 3;
the testing system further comprises an electronic load 61, an alternating current impedance tester 62, a hydrogen concentration sensor 63 and a data acquisition and processing unit 64, wherein the electronic load 61 and the hydrogen concentration sensor 63 are both connected with the fuel cell 3, the electronic load 61 is further connected with the alternating current impedance tester 62, and the first differential pressure sensor 4, the second differential pressure sensor 5, the alternating current impedance tester 62 and the hydrogen concentration sensor 63 are all electrically connected with the data acquisition and processing unit 64.
Preferably, the hydrogen supply unit includes a hydrogen cylinder 11, a first pressure reducing valve 12, a stabilizing valve 13, a first pressure sensor 14, a first temperature sensor 15, a hydrogen flowmeter 16 and a first proportional valve 17 which are connected in sequence through a pipeline, the first proportional valve 17 is connected with the first differential pressure sensor 4 through a pipeline, and the first pressure sensor 4 and the first temperature sensor 15 are electrically connected with the data acquisition and processing unit 64.
Preferably, a first humidifier 18 is arranged between the first proportional valve 17 and the first differential pressure sensor 4 in parallel, and a water inlet of the first humidifier 18 is connected with a water outlet of the fuel cell 3.
Preferably, a nitrogen gas cylinder 19 is further connected to the first pressure reducing valve 12.
Preferably, the oxygen supply unit comprises an air pump 21, a first electromagnetic exhaust valve 22, a second pressure reducing valve 23, a second pressure sensor 24, a second temperature sensor 25, an oxygen flow meter 26 and a second proportional valve 27 which are connected in sequence through pipelines, the second proportional valve 27 is connected with the second differential pressure sensor 5 through a pipeline, and the second pressure sensor 24 and the second temperature sensor 25 are electrically connected with the data acquisition and processing unit 64.
Preferably, a second humidifier 28 is arranged between the second proportional valve 27 and the second differential pressure sensor 5 in parallel, and a water inlet of the second humidifier 28 is connected with a water outlet of the fuel cell 3.
Preferably, the test system further comprises a radiator 71, a deionized water tank 72 and a water pump 73 which are connected in sequence, the water pump 73 is connected with the water outlet of the fuel cell 3, and the radiator 71 is respectively connected with the water inlets of the first humidifier 18 and the second humidifier 28.
Preferably, the test system further comprises a tail gas treatment unit, the tail gas treatment unit comprises an electromagnetic valve 81, one end of the electromagnetic valve 81 is connected with the hydrogen concentration sensor 63, the other end of the electromagnetic valve 81 is divided into two branches, one of the branches is provided with a hydrogen recovery device 82, a first safety alarm device 83 and a second electromagnetic exhaust valve 84 in sequence, and the other branch is provided with a second safety alarm device 85 and a third electromagnetic exhaust valve 86 in sequence.
The working process of the fuel cell of the invention is as follows:
according to the experimental requirements, the reaction gas is introduced into the proton exchange membrane fuel (hydrogen enters from the anode of the cell stack, and air enters from the cathode of the cell stack) according to the required parameters (flow, humidity, temperature, pressure and the like).
Hydrogen in the hydrogen cylinder 11 sequentially passes through a first pressure reducing valve 12, a stabilizing valve 13, a first pressure sensor 14, a first temperature sensor 15 and a hydrogen flowmeter 16, the humidity of the hydrogen is controlled through a first humidifier 18 and a first proportional valve 17, and the hydrogen enters the anode of the proton exchange membrane fuel cell;
the air pump 21 pumps air through a first electromagnetic exhaust valve 22, a second pressure reducing valve 23, a second pressure sensor 24, a second temperature sensor 25 and an oxygen flow meter 26 in sequence, controls the humidity of oxygen through a second humidifier 28 and a second proportional valve 27, and enters the cathode of the proton exchange membrane fuel cell;
after hydrogen and air enter the proton exchange membrane fuel cell for full reaction, discharged mixed gas (unreacted hydrogen, air, water vapor and the like) enters a hydrogen recovery device 82 through a hydrogen concentration sensor 63 for hydrogen recovery, and waste water with waste heat returns to the deionized water tank 72 through a water pump.
The deionized water tank 72 is connected to the first humidifier 18 and the second humidifier 28 via the radiator 71, and the deionized water adjusted by the water pump 73 (adjusting the flow rate) and the radiator 71 (adjusting the temperature) is introduced into the first humidifier 18 and the second humidifier 28 to humidify the gases, respectively.
The data acquisition and processing device 64 is used for acquiring and processing experimental data, and the abnormal water quantity and working environment conditions of the fuel cell 3 can be judged according to the monitored data of the alternating current impedance tester 62, the first differential pressure sensor 4 and the second differential pressure sensor 5 in the experimental process, so that the dehydration or flooding fault inside the fuel cell can be determined.
When the water is flooded, the data acquisition and processing device 64 opens the nitrogen cylinder 11 to remove residual gas and redundant accumulated water in the reaction area of the fuel cell 3 through nitrogen;
when the dehydration is judged, the data acquisition and processing device accelerates the deionized water circulation humidification with controllable temperature by controlling a water pump 73 and a radiator 71 on a humidification route 64;
the data acquisition and processing device can also judge the working environment of the fuel cell in real time according to the data (gas pressure and temperature) acquired by the first pressure sensor 14, the first temperature sensor 15, the second pressure sensor 24 and the second temperature sensor 24, and simultaneously control whether the water pump 73 and the radiator 71 operate or not, regulate and control the parameters of the reaction gas required by the experiment table, maintain stable experiment parameter variables, and improve the accuracy of the experiment data and the safety of the experiment table.
Preferably, the data collecting and processing device 64 pre-cools the fuel cell by accelerating the water circulation of the condensed water according to the water pump 73 and the radiator 71 of the fuel cell, and the data collecting and processing device 64 determines whether to operate the external cooling system to assist in cooling the fuel cell according to the temperature of the fuel cell.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The fuel cell dynamic performance testing system is characterized by comprising a hydrogen supply unit for supplying hydrogen meeting a preset standard, an oxygen supply unit for supplying oxygen meeting the preset standard, a first differential pressure sensor (4) connected with the anode (3) of a fuel cell, and a second differential pressure sensor (5) connected with the cathode of the fuel cell (3), wherein the hydrogen supply unit is connected with the first differential pressure sensor (4) to supply hydrogen to the anode of the fuel cell (3), and the oxygen supply unit is connected with the second differential pressure sensor (5) to supply oxygen to the cathode of the fuel cell (3);
the testing system further comprises an electronic load (61), an alternating current impedance tester (62), a hydrogen concentration sensor (63) and a data acquisition and processing unit (64), wherein the electronic load (61) and the hydrogen concentration sensor (63) are connected with the fuel cell (3), the electronic load (61) is further connected with the alternating current impedance tester (62), and the first differential pressure sensor (4), the second differential pressure sensor (5), the alternating current impedance tester (62) and the hydrogen concentration sensor (63) are electrically connected with the data acquisition and processing unit (64).
2. The fuel cell dynamic performance testing system of claim 1, wherein the hydrogen supply unit comprises a hydrogen cylinder (11), a first pressure reducing valve (12), a stabilizing valve (13), a first pressure sensor (14), a first temperature sensor (15), a hydrogen flow meter (16) and a first proportional valve (17) which are sequentially connected through a pipeline, the first proportional valve (17) is connected with the first differential pressure sensor (4) through a pipeline, and the first pressure sensor (14) and the first temperature sensor (15) are electrically connected with the data acquisition and processing unit (64).
3. The fuel cell dynamic performance testing system according to claim 2, wherein a first humidifier (18) is arranged in parallel between the first proportional valve (17) and the first differential pressure sensor (4), and a water inlet of the first humidifier (18) is connected with a water outlet of the fuel cell (3).
4. The fuel cell dynamic performance testing system according to claim 2, wherein a nitrogen gas cylinder (19) is further connected to the first pressure reducing valve (12).
5. The fuel cell dynamic performance testing system of claim 3, wherein the oxygen supply unit comprises an air pump (21), a first electromagnetic exhaust valve (22), a second pressure reducing valve (23), a second pressure sensor (24), a second temperature sensor (25), an oxygen flow meter (26) and a second proportional valve (27) which are connected in sequence through a pipeline, the second proportional valve (27) is connected with the second differential pressure sensor (5) through a pipeline, and the second pressure sensor (24) and the second temperature sensor (25) are electrically connected with the data acquisition and processing unit (64).
6. The fuel cell dynamic performance testing system according to claim 5, wherein a second humidifier (28) is arranged in parallel between the second proportional valve (27) and the second differential pressure sensor (5), and a water inlet of the second humidifier (28) is connected with a water outlet of the fuel cell (3).
7. The fuel cell dynamic performance testing system of claim 6, characterized in that the testing system further comprises a radiator (71), a deionized water tank (72) and a water pump (73) which are connected in sequence, the water pump (73) is connected with the water outlet of the fuel cell (3), and the radiator (71) is respectively connected with the water inlets of the first humidifier (18) and the second humidifier (28).
8. The fuel cell dynamic performance testing system of claim 7, further comprising a tail gas processing unit, wherein the tail gas processing unit comprises an electromagnetic valve (81), one end of the electromagnetic valve (81) is connected with the hydrogen concentration sensor (63), the other end of the electromagnetic valve (81) is divided into two branches, one branch is sequentially provided with a hydrogen recovery device (82), a first safety alarm device (83) and a second electromagnetic exhaust valve (84), and the other branch is sequentially provided with a second safety alarm device (85) and a third electromagnetic exhaust valve (86).
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| CN201911007058.8A CN110931831A (en) | 2019-10-22 | 2019-10-22 | Fuel cell dynamic performance test system |
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| CN111600050A (en) * | 2020-05-27 | 2020-08-28 | 上海汉翱新能源科技有限公司 | Multifunctional proton exchange membrane fuel cell test bench |
| CN111600050B (en) * | 2020-05-27 | 2022-03-29 | 上海汉翱新能源科技有限公司 | Multifunctional proton exchange membrane fuel cell test bench |
| CN112490473A (en) * | 2020-10-28 | 2021-03-12 | 广州汽车集团股份有限公司 | Dynamic water management system of electric pile of proton exchange membrane fuel cell and working method thereof |
| CN112490473B (en) * | 2020-10-28 | 2022-09-27 | 广州汽车集团股份有限公司 | Dynamic water management system of electric pile of proton exchange membrane fuel cell and working method thereof |
| CN113903954A (en) * | 2021-11-17 | 2022-01-07 | 中汽研新能源汽车检验中心(天津)有限公司 | Hydrogen fuel cell water fault on-line diagnosis testing arrangement |
| CN116525882A (en) * | 2023-07-03 | 2023-08-01 | 珠海格力电器股份有限公司 | Fuel cell and control method, device and storage medium for water management system of fuel cell |
| CN116525882B (en) * | 2023-07-03 | 2023-09-15 | 珠海格力电器股份有限公司 | Fuel cell and control method, device and storage medium for water management system of fuel cell |
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