CN110034315B - Anode water management method of fuel cell stack - Google Patents
Anode water management method of fuel cell stack Download PDFInfo
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- CN110034315B CN110034315B CN201910389877.7A CN201910389877A CN110034315B CN 110034315 B CN110034315 B CN 110034315B CN 201910389877 A CN201910389877 A CN 201910389877A CN 110034315 B CN110034315 B CN 110034315B
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- 239000000446 fuel Substances 0.000 title claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000007726 management method Methods 0.000 title description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 239000001257 hydrogen Substances 0.000 claims abstract description 88
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 88
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007792 addition Methods 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
- 230000001351 cycling effect Effects 0.000 description 1
- 238000002474 experimental method Methods 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
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
-
- 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
-
- 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 relates to the technical field of fuel cells, in particular to a method for managing anode water of a fuel cell stack. The method is used for a fuel cell stack with a first hydrogen port and a second hydrogen port at the anode, and comprises the following steps when the fuel cell stack works: a. the first hydrogen port is used as an air inlet, and the second hydrogen port is used as an air outlet, so that hydrogen passes through the fuel cell stack; b. the second hydrogen port is used as an air inlet, and the first hydrogen port is used as an air outlet, so that hydrogen is pushed through the fuel cell; c. and (c) continuously repeating the steps a and b in sequence until the work is finished. The invention solves the problems that the anode of the fuel cell stack is easy to lose water and dry near the electrode of the inlet part and is easy to water flooded near the electrode of the outlet part by changing the air inlet and air outlet directions of the hydrogen, so that the water in the anode flow channel of the fuel cell tends to be balanced, thereby increasing the reliability and the service life of the fuel cell.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a method for managing anode water of a fuel cell stack.
Background
The fuel cell stack is formed by combining a plurality of single cells, and each single cell mainly comprises a membrane electrode assembly, a fuel cell flow field plate, a sealing structure, a current collecting device and a gas supply device. The fuel cell stack is used as a power generation device for directly converting chemical energy of fuel into electric energy, has the advantages of wide source of reaction gas, high conversion efficiency, no pollution, low noise and the like, and has wide application prospect in the military and civil fields.
When the fuel cell stack works, hydrogen enters the anode and is decomposed into protons and electrons under the action of the catalyst. Protons may pass through the proton exchange membrane to the cathode while electrons enter the cathode through an external circuit, then the water is produced by reacting with oxygen on the cathode side under the action of a catalyst. In this process, the internal environment of the fuel cell stack is uneven during operation, and the anode has the problems that the electrode near the hydrogen inlet part is easy to dehydrate and dry, and the electrode near the hydrogen outlet part is easy to water flooded, especially the water flooded problem, which can cause poor stability and reduced performance of the fuel cell stack.
In order to solve such problems, in the prior art, a flooding detection device is mostly adopted to solve the problems, such as a flooding control method for a fuel cell disclosed in patent document of application number CN201310430137.6, which obtains a theoretical calculation value of hydrogen pressure drop under normal operation conditions of the fuel cell to be controlled through flow field parameter calculation or experimental test, obtains an upper limit of hydrogen pressure drop control for preventing flooding of the fuel cell to be controlled through a flooding experiment or flow channel parameter, and defines a "micro-wetting non-flooding" interval of the fuel cell to be controlled; and the water state of the fuel cell to be controlled is evaluated through the detection of the hydrogen pressure drop, and the control process for preventing flooding is realized through the adjustment of the reaction temperature and the stabilization time. In addition, as disclosed in the patent document with the application number of CN201710742977.4, a system for detecting flooding and removing faults of a fuel cell and a working method thereof, in the reaction process of the fuel cell, the system detects voltage drop at two ends of an electronic load through a data acquisition and processing system, namely, determines that flooding faults occur in the fuel cell; and then purging the dry nitrogen to remove residual hydrogen and air and excessive accumulated water in the reaction zone of the fuel cell, so as to stop the continuous reaction of the fuel cell and relieve the flooding failure of the cell.
The invention achieves the aim of preventing flooding by detecting the flooding state, can not fundamentally solve the problem of uneven water distribution in the fuel cell stack, and has a complex structure.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a water management method capable of simply and effectively solving the problem of performance degradation due to uneven distribution of water inside a fuel cell stack.
The technical scheme for solving the problem is that the invention provides a fuel cell stack anode water management method, which is used for a fuel cell stack with a first hydrogen port and a second hydrogen port at the anode, and when the fuel cell stack works, the method comprises the following steps:
a. the first hydrogen port is used as an air inlet, and the second hydrogen port is used as an air outlet, so that hydrogen passes through the fuel cell stack;
b. the second hydrogen port is used as an air inlet, and the first hydrogen port is used as an air outlet, so that hydrogen passes through the fuel cell stack;
c. and (c) continuously repeating the steps a and b in sequence until the work is finished.
Preferably, the working time of step a is 3-10s.
Preferably, the working time of step b is 0.3-1s.
Preferably, the cathode of the fuel cell stack is provided with an exhaust port for exhausting water vapor, and when the step a is implemented, the exhaust port works, and the working time is less than or equal to the working time of the step a; and b, stopping working the exhaust port when the step b is implemented.
Preferably, the first hydrogen port and the second hydrogen port are respectively connected with a hydrogen circulating pump, and the air inlet and the air outlet directions of the first hydrogen port and the second hydrogen port are alternately changed through an adjusting structure.
Preferably, the adjusting structure comprises a gas pipe used for connecting the first hydrogen port and the hydrogen circulating pump, the second hydrogen port and the hydrogen circulating pump respectively, and an emptying pipe arranged on the gas pipe respectively, wherein the gas pipe and the emptying pipe are both provided with gas valves.
Preferably, the regulating structure comprises a first three-way electromagnetic valve and a second three-way electromagnetic valve; the first three-way electromagnetic valve comprises a first one-way inlet a first unidirectional outlet and a first universal port; the second three-way electromagnetic valve comprises a second one-way inlet, a second one-way outlet and a second common port; the first unidirectional inlet, the first unidirectional outlet, the second unidirectional inlet and the second unidirectional outlet are respectively connected with the hydrogen circulating pump, the first universal port is connected with the first hydrogen port, and the second universal port is connected with the second hydrogen port.
Preferably, the adjusting structure further comprises a linkage controller for controlling the first hydrogen port emptying pipe air valve to be closed, the second hydrogen port emptying pipe air valve to be closed and the second hydrogen port emptying pipe air valve to be opened when the first hydrogen port air pipe air valve is opened.
Preferably, the regulating structure further comprises a linkage controller for controlling the first unidirectional outlet to be closed, the second unidirectional inlet to be closed and the second unidirectional outlet to be opened when the first unidirectional inlet is opened.
Preferably, the linkage controller is provided with a timing unit.
The invention has the beneficial effects that:
1. the method is simple, only the air inlet and exhaust directions of the hydrogen are required to be changed continuously and alternately, and the air inlet and exhaust directions of the hydrogen are changed simply through a circulating pump or a three-way electromagnetic valve.
2. The feasibility is good, the water in the anode flow channel inside the fuel cell stack is circulated bidirectionally, so that the water is more uniform, and the problems that the anode of the fuel cell stack is easy to dehydrate and dry when approaching to the electrode of the inlet part and easy to water flood when approaching to the electrode of the outlet part are solved.
Drawings
FIG. 1 is a schematic diagram of a bi-directional hydrogen cycle for a fuel cell stack according to example 1 of the present application;
FIG. 2 is a graph of stability of a fuel cell stack in example 1 of the present application for bi-directional hydrogen circulation;
FIG. 3 is a schematic diagram of a bi-directional hydrogen cycle for a fuel cell stack in example 2 of the present application;
FIG. 4 is a graph showing the stability of the fuel cell stack of example 2 of the present application during bi-directional hydrogen cycling;
FIG. 5 is a schematic view of hydrogen circulation during normal operation of the fuel cell stack of comparative example 1;
fig. 6 is a graph of stability of the fuel cell stack of the related art of comparative example 1 during normal operation:
in the figure: a fuel cell stack 10; a first hydrogen port 11; a second hydrogen port 12; a hydrogen circulation pump 20; a gas pipe 21; an evacuation tube 22; a first three-way electromagnetic valve 30; a first unidirectional inlet 31; a first unidirectional outlet 32; a first universal port 33; a second three-way electromagnetic valve 40; a second unidirectional inlet 41; a second unidirectional outlet 42; a second common port 43.
Detailed Description
The following is a specific embodiment of the present invention, and the technical solution of the present invention is further described with reference to the accompanying drawings, but the present invention is not limited to these examples.
Example 1
As shown in fig. 1, a method for managing anode water of a fuel cell stack is provided for a fuel cell stack 10 having a first hydrogen port 11 and a second hydrogen port 12 at an anode, and the fuel cell stack is operated by:
a. the first hydrogen port 11 is used as an air inlet, and the second hydrogen port 12 is used as an air outlet, so that hydrogen passes through the fuel cell stack;
b. the second hydrogen gas port 12 is used as an air inlet, and the first hydrogen gas port 11 is used as an air outlet, so that hydrogen passes through the fuel cell stack;
c. and (c) continuously repeating the steps a and b in sequence until the work is finished.
Step a is carried out after working for 3s, step b is carried out after working for 0.3s, and step a is carried out until the working is finished continuously.
Meanwhile, the cathode of the fuel cell stack 10 is provided with an exhaust port for exhausting water vapor, and when the step a is implemented, the exhaust port works, and the working time is less than or equal to the working time of the step a; and b, stopping working the exhaust port when the step b is implemented. So that the fuel cell stack 10 can be exhausted through the exhaust port of the cathode while step a is performed, thereby stabilizing the performance of the fuel cell stack.
In this embodiment, the hydrogen circulation pump 20 and the adjusting structure are used to change the inlet and outlet directions of the first hydrogen port 11 and the second hydrogen port 12.
As shown in fig. 1, the first hydrogen gas port 11 and the second hydrogen gas port 12 are respectively connected to the hydrogen circulation pump 20, and the intake and exhaust directions of the first hydrogen gas port 11 and the second hydrogen gas port 12 are changed by adjusting the structure. The adjusting structure comprises an air pipe 21 which is respectively used for connecting the first hydrogen gas port 11 and the hydrogen gas circulating pump 20, the second hydrogen gas port 12 and the hydrogen gas circulating pump 20, and an evacuation pipe 22 which is respectively arranged on the air pipe 21, wherein both the air pipe 21 and the evacuation pipe 22 are provided with air valves. The adjusting structure also comprises a linkage controller for controlling the air valve to be opened and closed. The linkage controller is provided with a timing unit.
It should be noted that, in fig. 1, there are 2 air pipes 21, two emptying pipes 22,4 air valves, and for convenience of description, the air pipe at the first hydrogen port 11 is denoted by 21a, and the emptying pipe is denoted by 22a; the air pipe at the second hydrogen port 12 is designated 21b and the evacuation pipe is designated 22b. And the air valve of the air pipe 21a is denoted by 23a, the air valve of the emptying pipe 22a is denoted by 23b, the air valve of the air pipe 21b is denoted by 23c, and the air valve of the emptying pipe 22b is denoted by 23d.
When step a is performed, the air valve 23a is opened, the air valve 23b is closed, the air valve 23c is closed, and the air valve 23d is opened, as can be seen from the figure, hydrogen gas enters the fuel cell stack 10 from the hydrogen circulation pump 20 along the air pipe 21a through the first hydrogen gas port 11, and then is discharged from the second hydrogen gas port 12 through the evacuation pipe 22b.
When step b is performed, the gas valve 23a is closed, the gas valve 23b is opened, the gas valve 23c is opened, and the gas valve 23d is closed, as is known from the figure, hydrogen gas is introduced from the hydrogen circulation pump 20 into the fuel cell stack 10 along the gas pipe 21b through the second hydrogen gas port 12, and is discharged from the first hydrogen gas 11 through the evacuation pipe 22 a.
The bidirectional circulation is performed in such a way that the water distribution in the flow channels in the fuel cell stack is always in an equilibrium state.
As shown in fig. 2, the operation stability curve of the fuel cell stack of this example shows that the fuel cell stack of this example has better stability and no significant degradation in performance.
Example 2
As shown in fig. 3, a method for managing anode water of a fuel cell stack is provided for a fuel cell stack 10 having a first hydrogen port 11 and a second hydrogen port 12 at an anode, and the fuel cell stack is operated, comprising the steps of:
a. the first hydrogen port 11 is used as an air inlet, and the second hydrogen port 12 is used as an air outlet, so that hydrogen passes through the fuel cell stack;
b. the second hydrogen gas port 12 is used as an air inlet, and the first hydrogen gas port 11 is used as an air outlet, so that hydrogen passes through the fuel cell stack;
c. and (c) continuously repeating the steps a and b in sequence until the work is finished.
Wherein step b is performed after step a is operated for 10 seconds, step b is implemented after working for 1s, and the step a is repeated until the working is finished.
Meanwhile, the cathode of the fuel cell stack 10 is provided with an exhaust port for exhausting water vapor, and when the step a is implemented, the exhaust port works, and the working time is less than or equal to the working time of the step a; and b, stopping working the exhaust port when the step b is implemented. So that the fuel cell stack 10 can be exhausted through the exhaust port of the cathode while step a is performed, thereby stabilizing the performance of the fuel cell stack.
In this embodiment, the hydrogen circulation pump 20 and the adjusting structure are used to change the inlet and outlet directions of the first hydrogen port 11 and the second hydrogen port 12.
As shown in fig. 3, the first hydrogen gas port 11 and the second hydrogen gas port 12 are respectively connected to the hydrogen circulation pump 20, and the intake and exhaust directions of the first hydrogen gas port 11 and the second hydrogen gas port 12 are changed by adjusting the structure. The regulating structure comprises a first three-way electromagnetic valve 30 and a second three-way electromagnetic valve 40; the first three-way solenoid valve 30 includes a first one-way inlet 31, a first one-way outlet 32, and a first common port 33; the second three-way solenoid valve 40 includes a second one-way inlet 41, a second one-way outlet 42, and a second common port 43; the first unidirectional inlet 31, the first unidirectional outlet 32, the second unidirectional inlet 41, and the second unidirectional outlet 42 are respectively connected to the hydrogen circulation pump 20, the first common port 33 is connected to the first hydrogen gas port 11, and the second common port 43 is connected to the second hydrogen gas port 12.
The regulating structure further comprises a linkage controller for controlling the first unidirectional outlet 32 to be closed, the second unidirectional inlet 41 to be closed, and the second unidirectional outlet 42 to be opened when the first unidirectional inlet 31 is opened. The linkage controller is provided with a timing unit.
When step a is performed, the first unidirectional inlet 31 is opened, the first unidirectional outlet 32 is closed, the second unidirectional inlet 41 is closed, and the second unidirectional outlet 42 is opened. As can be seen, hydrogen gas flows from the hydrogen circulation pump 20 along the first unidirectional inlet 31, through the first common port 33, from the first hydrogen gas port 11 into the fuel cell stack 10, and then flows back to the hydrogen circulation pump 20 through the second hydrogen gas port 12, through the second common port 43, and then through the second unidirectional outlet 42.
When step b is performed, the first unidirectional inlet 41 is closed, the first unidirectional outlet 32 is opened, the second unidirectional inlet 41 is opened, and the second unidirectional outlet 42 is closed. As can be seen, hydrogen gas flows from the hydrogen circulation pump 20 along the second unidirectional inlet 41, through the second common port 43, from the second hydrogen gas port 12 into the fuel cell stack 10, and then flows back to the hydrogen circulation pump 20 through the first common port 33, through the first unidirectional outlet 32, and from the first hydrogen gas port 11.
The bidirectional circulation is performed in such a way that the water distribution in the flow channels in the fuel cell stack is always in an equilibrium state.
As shown in fig. 4, the operation stability curve of the fuel cell stack of this example shows that the fuel cell stack of this example has better stability and no significant degradation in performance.
Comparative example 1
As shown in fig. 5, when the fuel cell stack is operating normally, hydrogen enters the fuel cell stack 10 from the hydrogen circulation pump 20 through the first hydrogen port 11 and is discharged from the second hydrogen port 12 as a unidirectional cycle.
The distribution of water within the fuel cell stack has a concentration gradient and is not uniformly distributed. The stack stability test data in this state is shown in fig. 6. The fuel cell stack performance was degraded during the 280min test. Not to the extent of performance stability in examples 1 and 2.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A method of anode water management for a fuel cell stack, characterized by:
the anode of the fuel cell stack (10) is provided with a first hydrogen gas port (11) and a second hydrogen gas port (12),
the fuel cell stack is operated by the steps of:
a. a first hydrogen gas port (11) is used as an air inlet, a second hydrogen gas port (12) is used as an air outlet, and hydrogen gas passes through the fuel cell stack; the working time of the step a is 3-10s;
b. the second hydrogen gas port (12) is used as an air inlet, and the first hydrogen gas port (11) is used as an air outlet, so that hydrogen passes through the fuel cell stack; the working time of the step b is 0.3-1s;
c. continuously repeating the steps a and b in sequence until the work is finished;
the cathode of the fuel cell stack (10) is provided with an exhaust port for exhausting water vapor, and when the step a is implemented, the exhaust port works, and the working time is less than or equal to the working time of the step a; and b, stopping working the exhaust port when the step b is implemented.
2. A method of anode water management for a fuel cell stack according to claim 1, wherein: the first hydrogen gas port (11) and the second hydrogen gas port (12) are respectively connected with the hydrogen circulating pump (20), and the gas inlet and exhaust directions of the first hydrogen gas port (11) and the second hydrogen gas port (12) are alternately changed through an adjusting structure.
3. A method of anode water management for a fuel cell stack according to claim 2, wherein: the adjusting structure comprises an air pipe (21) used for connecting the first hydrogen gas port (11) with the hydrogen gas circulating pump (20), the second hydrogen gas port (12) with the hydrogen gas circulating pump (20) and an emptying pipe (22) arranged on the air pipe (21) respectively, wherein the air pipe (21) and the emptying pipe (22) are both provided with air valves.
4. A method of anode water management for a fuel cell stack according to claim 2, wherein: the adjusting structure comprises a first three-way electromagnetic valve (30) and a second three-way electromagnetic valve (40); the first three-way electromagnetic valve (30) comprises a first one-way inlet (31), a first one-way outlet (32) and a first universal port (33); the second three-way electromagnetic valve (40) comprises a second one-way inlet (41), a second one-way outlet (42) and a second common port (43); the first unidirectional inlet (31), the first unidirectional outlet (32), the second unidirectional inlet (41) and the second unidirectional outlet (42) are respectively connected with the hydrogen circulating pump (20), the first universal port (33) is connected with the first hydrogen port (11), and the second universal port (43) is connected with the second hydrogen port (12).
5. A method of anode water management for a fuel cell stack according to claim 3, wherein: the adjusting structure further comprises a linkage controller for controlling the first hydrogen gas port (11) to be closed by the air valve of the emptying pipe (22) and the second hydrogen gas port (12) to be closed by the air valve of the air pipe (21) and the second hydrogen gas port (12) to be opened by the air valve of the emptying pipe (22) when the air valve of the air pipe (21) of the first hydrogen gas port (11) is opened.
6. A method of anode water management for a fuel cell stack as set forth in claim 4, wherein: the regulating structure further comprises a linkage controller for controlling the first unidirectional outlet (32) to be closed, the second unidirectional inlet (41) to be closed and the second unidirectional outlet (42) to be opened when the first unidirectional inlet (31) is opened.
7. A method of anode water management for a fuel cell stack according to claim 5 or 6, wherein: the linkage controller is provided with a timing unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910389877.7A CN110034315B (en) | 2019-05-10 | 2019-05-10 | Anode water management method of fuel cell stack |
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| CN201910389877.7A CN110034315B (en) | 2019-05-10 | 2019-05-10 | Anode water management method of fuel cell stack |
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| CN110034315B true CN110034315B (en) | 2024-04-09 |
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| CN112038668A (en) * | 2020-08-12 | 2020-12-04 | 广东国鸿氢能科技有限公司 | Water management system of proton exchange membrane fuel cell and operation method |
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| CN107658480A (en) * | 2017-08-25 | 2018-02-02 | 上海交通大学 | A kind of fuel-cell single-cell and pile of the enhancing of humiture uniformity |
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2019
- 2019-05-10 CN CN201910389877.7A patent/CN110034315B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102007631A (en) * | 2008-04-18 | 2011-04-06 | Utc电力公司 | Fuel cell component with interdigitated flow fields |
| CN101859909A (en) * | 2009-01-26 | 2010-10-13 | 通用汽车环球科技运作公司 | Be used to improve the shutdown strategy of water management |
| CN106898799A (en) * | 2017-05-05 | 2017-06-27 | 浙江高成绿能科技有限公司 | A kind of water management control method of self-humidifying fuel cell heap |
| CN206849951U (en) * | 2017-05-05 | 2018-01-05 | 浙江高成绿能科技有限公司 | A kind of water management control system of self-humidifying fuel cell heap |
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