CN111948547A - Proton exchange membrane hydrogen fuel cell dry-wet cycle testing device - Google Patents
Proton exchange membrane hydrogen fuel cell dry-wet cycle testing device Download PDFInfo
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- CN111948547A CN111948547A CN202010516425.3A CN202010516425A CN111948547A CN 111948547 A CN111948547 A CN 111948547A CN 202010516425 A CN202010516425 A CN 202010516425A CN 111948547 A CN111948547 A CN 111948547A
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- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 239000001257 hydrogen Substances 0.000 title claims abstract description 86
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 86
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000012528 membrane Substances 0.000 title claims abstract description 70
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 259
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 229910000619 316 stainless steel Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
-
- 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]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the field of hydrogen fuel cells, in particular to a proton exchange membrane hydrogen fuel cell dry-wet cycle testing device. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device comprises a proton exchange membrane hydrogen fuel cell, a gas storage device and a gas circuit control device; the gas humidification device is characterized by further comprising a gas humidification control device, wherein the gas humidification control device is arranged between the gas humidification device and the gas path control device. The device can realize accurate control of flow, humidity, gas temperature, gas flow, gas backpressure and dry-wet gas duration, and realize quick evaluation of mechanical durability of the proton membrane of the hydrogen fuel cell.
Description
Technical Field
The invention relates to the technical field of proton exchange membrane hydrogen fuel cell testing devices, in particular to a proton exchange membrane hydrogen fuel cell dry-wet cycle testing device.
Background
The proton exchange membrane hydrogen fuel cell can directly convert chemical energy (hydrogen and air) into electric energy, and has the advantages of high energy conversion efficiency, environmental protection, no pollution, short fuel filling time and the like, so that the proton exchange membrane hydrogen fuel cell is considered to be a major strategic direction of energy transformation and power transformation in the world. Proton exchange membrane hydrogen fuel cells have been widely used in the fields of passenger cars, logistics transportation automobiles, passenger cars, forklifts, field vehicles and the like, and proton exchange membrane hydrogen fuel cell automobiles are expected to become the main component parts in the future automobile market. The proton exchange membrane is a key material of the fuel cell, and the durability of the proton exchange membrane determines the service life of the hydrogen fuel cell and the hydrogen fuel cell automobile. The dry-wet cycle test is an important test index for evaluating the mechanical durability of the proton exchange membrane, namely, the proton membrane is subjected to constantly changing wet stress to cause mechanical failure in the process of reciprocating and alternating between a dry state and a wet state.
Therefore, how to detect the dry-wet cycle life of the proton exchange membrane hydrogen fuel cell and provide a testing device capable of accurately controlling and switching the flow, the humidity, the gas temperature, the gas flow, the gas backpressure and the dry-wet gas duration is a key technical problem which needs to be solved by technicians in the field.
Disclosure of Invention
The invention aims to provide a testing device capable of accurately controlling flow, humidity, gas temperature, gas flow, gas back pressure and dry and wet gas duration, so as to realize rapid evaluation of mechanical durability of a proton membrane of a hydrogen fuel cell.
The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device comprises a proton exchange membrane hydrogen fuel cell, wherein an anode gas inlet and an anode gas outlet are arranged on an anode chamber of the proton exchange membrane hydrogen fuel cell, and a cathode gas inlet and a cathode gas outlet are arranged on a cathode chamber;
the gas storage device is communicated with the anode gas inlet and the cathode gas inlet through pipelines; the gas storage device is respectively provided with a gas path control device on the communicating channel with the anode gas inlet and the cathode gas inlet;
the gas humidifying device is arranged between the gas humidifying device and the gas path control device;
and the anode gas outlet and the cathode gas outlet are respectively provided with a gas-liquid separation device.
Preferably, the proton exchange membrane hydrogen fuel cell is a single cell or a cell stack formed by a plurality of cells.
Preferably, a flow meter is arranged between the gas storage device and the gas circuit control device.
Preferably, the air passage control device is an electromagnetic valve.
Preferably, a first gas path control device is arranged on a communication channel between the gas storage device and the anode gas inlet, and a first gas mass flowmeter is arranged between the gas storage device and the first gas path control device;
and a second gas path control device is arranged on a communication channel between the gas storage device and the cathode gas inlet, and a second gas mass flow meter is arranged between the gas storage device and the second gas path control device.
Preferably, a first gas humidification control device is arranged between the first gas humidification control device and the proton exchange membrane hydrogen fuel cell, a first gas humidification device is arranged between the first gas humidification control device and the proton exchange membrane hydrogen fuel cell, an air inlet of the first humidification device is communicated with an air outlet of the first gas humidification control device through a one-way valve I, and the one-way valve I flows towards the first gas humidification device; and the gas outlet of the first gas humidification control device is provided with a one-way valve II, the flow direction of the one-way valve II is communicated with the pipeline of the proton exchange membrane hydrogen fuel cell, and the gas outlet of the one-way valve II and the gas outlet of the first humidification device are connected with the pipeline communicated with the proton exchange membrane hydrogen fuel cell through a tee joint.
Preferably, a heat tracing band is arranged on a communication pipeline between the gas humidifying device and the proton exchange membrane hydrogen fuel cell.
Preferably, a back pressure valve is arranged at the outlet of the gas-liquid separation device.
Preferably, the gas outlet of the gas storage device is connected with the first gas flowmeter and the second gas flowmeter through a tee joint.
Preferably, the gas-liquid separator is of a non-pressurization type, and the liquid level is monitored and controlled in real time through a PLC control system, so that the functions of automatic water replenishing and automatic water draining are realized.
Preferably, the flow rate of the gas mass flow meter is set to be 2L/min; the outlet pressure of the gas storage device is not less than 0.1 MPa.
Preferably, the opening pressure of the one-way valves I, II, III and IV is 50Kpa, and the connector is a ferrule connector.
Preferably, the humidifying device is a humidifying tank made of stainless steel, has the functions of liquid level display, automatic water replenishing, automatic temperature control and overpressure automatic pressure relief, and supports 4-20mA signal transmission.
Preferably, the supporting voltage of the heat tracing band is 220V, the power is 80W/m, the current is 4-20mA, and the temperature is 90 ℃.
Preferably, the gas storage device is a gas storage tank, is a steel cylinder or a gas generating device of inert gas such as air, nitrogen or argon, and has an outlet pressure not less than 0.1 MPa.
Compared with the prior art, the invention has the following beneficial effects:
a) the proton exchange membrane hydrogen fuel cell dry-wet cycle testing device comprises a proton exchange membrane hydrogen fuel cell, wherein an anode gas inlet and an anode gas outlet are arranged on an anode chamber of the proton exchange membrane hydrogen fuel cell, and a cathode gas inlet and a cathode gas outlet are arranged on a cathode chamber; the gas storage device is communicated with the anode gas inlet and the cathode gas inlet through pipelines; the gas storage device is respectively provided with a gas path control device on the communication channel with the anode gas inlet and the cathode gas inlet; the gas humidifying device is arranged between the gas humidifying device and the gas circuit control device; the anode gas outlet and the cathode gas outlet are respectively provided with a gas-liquid separation device; and a gas mass flowmeter is arranged between the gas storage device and the gas circuit control device, so that the control of the flow of the dry gas and the wet gas can be realized.
b) The gas circuit control device is an electromagnetic valve, can realize the quick switching of dry gas and wet gas and can control the continuous supply time of the dry gas and the wet gas.
c) The gas humidifying device has the functions of liquid level display, automatic water supply, overpressure automatic pressure relief and the like.
d) The outlet of the gas-liquid separation device is provided with a backpressure valve, so that the adjustment of gas backpressure in a dry-wet cycle test of the proton exchange membrane hydrogen fuel cell can be realized.
Drawings
FIG. 1 is a dry-wet cycle testing device for a proton exchange membrane hydrogen fuel cell according to the present invention;
FIG. 2 is a schematic view of the anode gas inlet side of a PEM hydrogen fuel cell;
FIG. 3 is a schematic view of the cathode gas inlet side of a PEM hydrogen fuel cell;
FIG. 4 is a schematic view of the inlet side of the anode gas of a short stack of PEM hydrogen fuel cells;
FIG. 5 is a schematic view of the cathode gas inlet side of a short stack of PEM hydrogen fuel cells;
wherein: 1-a gas storage device, 2-a three-way valve I, 3-a first gas mass flowmeter, 4-a second gas mass flowmeter, 5-a first gas path control device, 6-a second gas path control device, 7-a first gas humidification control device, 8-a second gas humidification control device, 9-a one-way valve I, 10-a one-way valve III, 11-a first humidification device, 12-a second humidification device, 13-a one-way valve II, 14-a one-way valve IV, 15-a three-way valve II, 16-a three-way valve III, 17-a proton exchange membrane hydrogen fuel cell, 18-a first gas-liquid separator 19-a second gas-liquid separator, 20-a first back pressure valve, 21-a second back pressure valve, 171-an anode gas inlet, 172-a cathode gas inlet, 173-anode gas outlet, 174-cathode gas outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The proton exchange membrane hydrogen fuel single cell is a device for converting chemical energy into electric energy by utilizing fuel gas (hydrogen) and oxidant (oxygen/air), and the intrinsic proton exchange membrane hydrogen fuel cell dry-wet circulating device is a method for evaluating the membrane life of a proton exchange membrane under the condition that dry gas and wet gas are alternately carried out. It should be noted that the dry gas described in the present application refers to a gas that is kept dried and deoiled, the moisture content is not higher than 1%, and the wet gas is a humidified gas that reaches the humidity required by the test after being humidified by the humidification tank and subjected to dew point adjustment.
Example 1
As shown in fig. 1, the testing apparatus for dry-wet cycle of pem hydrogen fuel cell in this embodiment includes a pem hydrogen fuel cell 17, an anode gas inlet 171 and an anode gas outlet 173 are disposed on an anode chamber of the pem hydrogen fuel cell 17, and a cathode gas inlet 172 and a cathode gas outlet 174 are disposed on a cathode chamber of the pem hydrogen fuel cell 17.
As shown in fig. 1, the testing apparatus for dry-wet cycle of proton exchange membrane hydrogen fuel cell in this embodiment further includes a gas storage device 1, where the gas storage device 1 is communicated with an anode gas inlet 171 and a cathode gas inlet 172 through pipelines; the gas storage device 1 is provided with a gas path control device 5 on the communication channel with the anode gas inlet 171 and the cathode gas inlet 172 respectively; a flowmeter is arranged between the gas storage device 1 and the gas circuit control device.
In this embodiment, a first gas path control device 5 is disposed on a communication channel between the gas storage device 1 and the anode gas inlet 171, and a first gas mass flowmeter 3 is disposed between the gas storage device 1 and the first gas path control device 5; a second gas path control device 6 is arranged on a communication channel between the gas storage device 1 and the cathode gas inlet 172, a second gas mass flow meter 4 is arranged between the gas storage device 1 and the second gas path control device 6, in this embodiment, the first gas path control device 5 and the second gas path control device 6 are electromagnetic valves, and a gas outlet of the gas storage device 1 is connected with the first gas flow meter 3 and the second gas flow meter 4 through a tee joint I2.
The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device further comprises a gas humidification control device, wherein a gas humidification device is arranged between the gas humidification control device and the proton exchange membrane hydrogen fuel cell; the gas humidification control device is provided with a gas inlet and two gas outlets, the gas inlet is connected with the gas path control device, the two gas outlets are respectively connected with the gas humidification device and the proton exchange membrane fuel cell, as shown in fig. 1, a first gas humidification control device 7 is arranged between the first gas control device 5 and the proton exchange membrane hydrogen fuel cell 17, a first gas humidification device 11 is arranged between the first gas humidification control device 7 and the proton exchange membrane hydrogen fuel cell 17, the gas inlet of the first humidification device 11 is communicated with one gas outlet of the first gas humidification control device 7 through a one-way valve I9, and the one-way valve I9 flows towards the first gas humidification device 11; the other air outlet of the first gas humidification control device 7 is provided with a one-way valve II13, the one-way valve II13 flows to a pipeline communicated with the proton exchange membrane hydrogen fuel cell 17, and the air outlets of the one-way valve II13 and the first humidification device 11 are connected with the pipeline communicated with the proton exchange membrane hydrogen fuel cell 17 through a tee joint II 15.
A second gas humidification control device 8 is arranged between the second gas control device 6 and the proton exchange membrane hydrogen fuel cell 17, a second gas humidification device 12 is arranged between the second gas humidification control device 8 and the proton exchange membrane hydrogen fuel cell 17, a gas inlet of the second humidification device 12 is communicated with a gas outlet of the second gas humidification control device 8 through a one-way valve III10, and the one-way valve III10 flows towards the second gas humidification device 12; a one-way valve IV 14 is arranged on the other air outlet of the second gas humidification control device 8, the one-way valve IV 14 flows to a pipeline communicated with the proton exchange membrane hydrogen fuel cell 17, and the air outlets of the one-way valve IV 14 and the second humidification device 12 are connected with the pipeline communicated with the proton exchange membrane hydrogen fuel cell 17 through a tee joint III 16. In this embodiment, the first humidification device 11 and the second humidification device 12 are humidification tanks made of 316L stainless steel, have functions of liquid level display, automatic water supply, automatic temperature control, and overpressure automatic pressure relief, and support 4-20mA signal transmission.
The first gas humidifying device 11, the second gas humidifying device 12 and the connection pipeline of the proton exchange membrane hydrogen fuel cell 17 are respectively provided with a first heat tracing band 22 and a second heat tracing band 23.
The first gas-liquid separator 18 and the second gas-liquid separator 19 are respectively provided at the anode gas outlet 173 and the cathode gas outlet 174 of the proton exchange membrane hydrogen fuel cell 7. The first gas-liquid separator 18 and the second gas-liquid separator 19 are of a non-pressurization type, and realize real-time monitoring and control of liquid level and automatic water replenishing and draining functions through a PLC control system. A first backpressure valve 20 and a second backpressure valve 21 are respectively arranged at the outlet of the first gas-liquid separator 18 and the outlet of the second gas-liquid separator 19. The first back pressure valve 20 and the second back pressure valve 21 are manual back pressure valves made of 316 stainless steel, the measuring range is not lower than 0.6Mpa, and the precision is not lower than 0.01 Mpa.
As shown in fig. 2 and 3, the pem hydrogen fuel cell 17 is a single cell, and the pem hydrogen fuel cell 17 includes an anode (anode) chamber with an anode gas inlet 171 and an anode gas outlet 173, and a cathode (cathode) chamber with a cathode gas inlet 172 and a cathode gas outlet 174.
As shown in fig. 4 and 5, the pem hydrogen fuel cell 17 is a short stack, and the pem hydrogen fuel cell 17 includes an anode (anode) chamber with an anode inlet 171 and an anode outlet 173, and a cathode (cathode) chamber with a cathode gas inlet 172 and a cathode gas outlet 174.
Test example 1
By adopting the proton exchange membrane hydrogen fuel cell dry-wet cycle testing device described in embodiment 1, the first humidifying device 11 and the second humidifying device 12 add pure water to 2/3 of the liquid level, the set temperatures of the first humidifying device 11, the second humidifying device 12, the proton exchange membrane hydrogen fuel cell, the first heat tracing band 22 and the second heat tracing band 23 are adjusted to 90 degrees centigrade, when the first humidifying device temperature 11, the second humidifying device 12, the proton exchange membrane hydrogen fuel cell temperature, the first heat tracing band 22 and the second heat tracing band 23 reach 90 degrees centigrade, the gas storage device 1 is opened, the output pressure is adjusted to 0.6MPa, the gas flow rates of the first gas mass flow meter 6 and the second gas mass flow meter 7 are set to 2000mL/min, the first gas path control device 5 and the second gas path control device 6 are opened, the first gas humidification control device 7 and the second humidification control device 8 are adjusted to a dry gas state, at this time, the temperature 11 of the first humidification device and the temperature 11 of the second humidification device 12 are not humidified in the pipeline, the set pressures of the first back pressure valve 20 and the back pressure valve 21 are adjusted to 0MPa, the first gas humidification control device 7 and the second gas humidification control device 8 are adjusted to a wet state after 2min, the temperature 11 of the first humidification device and the temperature 12 of the second humidification device are humidified in the pipeline, a dry-wet cycle is completed after 4min, and the experiment is completed after 2 ten thousand times.
Test example 2
Performing dry gas 2min, wet gas 4min, dry and wet gas flow 2L/min, wet gas humidity 100%, and back pressure 0.2MPa for 2 ten thousand times
By adopting the proton exchange membrane hydrogen fuel cell dry-wet cycle testing device described in embodiment 1, the first humidifying device 11 and the second humidifying device 12 add pure water to 2/3 of the liquid level, the set temperatures of the first humidifying device 11, the second humidifying device 12, the proton exchange membrane hydrogen fuel cell, the first heat tracing band 22 and the second heat tracing band 23 are adjusted to 90 degrees centigrade, when the temperatures of the first humidifying device 11, the second humidifying device 12, the proton exchange membrane hydrogen fuel cell, the first heat tracing band 22 and the second heat tracing band 23 reach 90 degrees centigrade, the gas storage device 1 is opened, the output pressure is adjusted to 0.6MPa, the gas flow rates of the first gas mass flowmeter 6 and the second gas mass flowmeter 7 are set to 2000mL/min, the first gas path control device 5 and the second gas path control device 6 are opened, the first gas humidification control device 7 and the second gas humidification control device 8 are adjusted to a dry gas state, at this time, the temperature 11 of the first humidification device and the temperature 11 of the second humidification device 12 are not humidified in the pipeline, the set pressures of the first back pressure valve 20 and the second back pressure valve 21 are adjusted to 0.2MPa, the first gas humidification control device 7 and the second gas humidification control device 8 are adjusted to a wet state after 2min, the temperature 11 of the first humidification device and the temperature 11 of the second humidification device 12 are humidified in the pipeline, a dry-wet cycle is completed after 4min, and the experiment is completed after 2 ten thousand times.
This proton exchange membrane hydrogen cell is wet cycle testing arrangement futilely, it needs to explain that, whole device need supporting PLC control module, and control (except that the back pressure valve) in the device all has PLC automatic control, and PLC control module needs and device hardware phase-match.
The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device needs to be explained in the specification that the humidity control is carried out by adjusting the temperature of the humidifying tank 11, the humidifying tank 12, the heat tracing band 22, the heat tracing band 23 and the fuel cell according to the dew point control principle.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device is characterized by comprising a proton exchange membrane hydrogen fuel cell, wherein an anode gas inlet and an anode gas outlet are arranged on an anode chamber of the proton exchange membrane hydrogen fuel cell, and a cathode gas inlet and a cathode gas outlet are arranged on a cathode chamber;
the gas storage device is communicated with the anode gas inlet and the cathode gas inlet through pipelines; the gas storage device is respectively provided with a gas path control device on the communicating channel with the anode gas inlet and the cathode gas inlet;
the gas humidifying device is arranged between the gas humidifying device and the gas path control device;
and the anode gas outlet and the cathode gas outlet are respectively provided with a gas-liquid separation device.
2. The pem hydrogen fuel cell wet and dry cycle testing apparatus as claimed in claim 1, wherein said pem hydrogen fuel cell is a single cell or a stack of several cells.
3. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device as claimed in claim 1, wherein a flow meter is disposed between the gas storage device and the gas path control device.
4. The pem hydrogen fuel cell wet and dry cycle testing apparatus of claim 3, wherein said gas path control device is an electromagnetic valve.
5. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device as claimed in claim 4, wherein a first gas path control device is arranged on a communication channel between the gas storage device and the anode gas inlet, and a first gas mass flowmeter is arranged between the gas storage device and the first gas path control device;
and a second gas path control device is arranged on a communication channel between the gas storage device and the cathode gas inlet, and a second gas mass flow meter is arranged between the gas storage device and the second gas path control device.
6. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device as claimed in claim 1, wherein a first gas humidification device is arranged between the first gas humidification device and the proton exchange membrane hydrogen fuel cell, a gas inlet of the first humidification device is communicated with a gas outlet of the first gas humidification device through a check valve I, and the check valve I flows towards the first gas humidification device; and the gas outlet of the first gas humidification control device is provided with a one-way valve II, the flow direction of the one-way valve II is communicated with the pipeline of the proton exchange membrane hydrogen fuel cell, and the gas outlet of the one-way valve II and the gas outlet of the first humidification device are connected with the pipeline communicated with the proton exchange membrane hydrogen fuel cell through a tee joint.
7. The pem hydrogen fuel cell dry-wet cycle testing apparatus as claimed in claim 1, wherein a heat tracing band is disposed on a communication pipeline between the gas humidification apparatus and the pem hydrogen fuel cell.
8. The pem-hydrogen fuel cell wet and dry cycle testing device of claim 1, wherein a back pressure valve is arranged at the outlet of the gas-liquid separation device.
9. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device of claim 1, wherein the gas outlet of the gas storage device is connected with the first gas flow meter and the second gas flow meter through a tee joint.
10. The proton exchange membrane hydrogen fuel cell dry-wet cycle testing device of claim 1, wherein the gas-liquid separation device realizes real-time monitoring and control of liquid level through a PLC control system, and realizes automatic water replenishing and automatic water draining functions.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113777026A (en) * | 2021-08-31 | 2021-12-10 | 同济大学 | High-flux multi-target rapid testing device and method for material bonding strength and structure |
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