CN115050993B - Purging system for fuel cell and purging method for purging system for fuel cell - Google Patents
Purging system for fuel cell and purging method for purging system for fuel cell Download PDFInfo
- Publication number
- CN115050993B CN115050993B CN202210796232.7A CN202210796232A CN115050993B CN 115050993 B CN115050993 B CN 115050993B CN 202210796232 A CN202210796232 A CN 202210796232A CN 115050993 B CN115050993 B CN 115050993B
- Authority
- CN
- China
- Prior art keywords
- way valve
- air
- fuel cell
- communicated
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010926 purge Methods 0.000 title claims abstract description 84
- 239000000446 fuel Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000001257 hydrogen Substances 0.000 claims abstract description 59
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010408 sweeping Methods 0.000 abstract 1
- 206010037544 Purging Diseases 0.000 description 44
- 239000007789 gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002245 particle Substances 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04303—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- 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
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the 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
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04179—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by purging or increasing flow or pressure of reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (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 a purging system of a fuel cell and a purging method of the system. The system comprises: a fuel cell stack, an air stack, and a hydrogen stack, the fuel cell stack having a first electrode and a second electrode; the air pipe group comprises an air inlet pipeline and an air outlet pipeline, the hydrogen pipeline comprises a hydrogen inlet pipeline and a hydrogen outlet pipeline, the air inlet pipeline is communicated with the air inlet of the first electrode, the air inlet pipeline is provided with a first three-way valve, and the air outlet pipeline is communicated with the air outlet of the first electrode; the first three-way valve, the second three-way valve and the third three-way valve are provided with a first state for enabling air and hydrogen to sweep the fuel cell at the same time and a second state for enabling air to sweep the hydrogen outlet pipeline, so that the sweeping time and energy consumption are reduced.
Description
Technical Field
The present invention relates to the field of fuel cell stacks, and in particular, to a purging system for a fuel cell and a purging method for a purging system for a fuel cell.
Background
When the ambient temperature is lower than the freezing point temperature, the fuel cell engine needs to be turned off, and the fuel cell system is subjected to low-temperature purging treatment, mainly purging the liquid water existing in the membrane stack and the system accessories, preventing the inside of the fuel cell system from icing, and reducing the risk of low-temperature cold start failure of the fuel cell. In order to ensure the low-temperature cold start performance of the fuel cell, the low-temperature purging process is long in time, high in energy consumption and capable of affecting physical examination of users.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a purging system of a fuel cell and a purging method of the purging system of the fuel cell. The method is used for solving the problems of long purging time and high energy consumption in the purging process of the fuel cell in the prior art.
In a first aspect, a purge system for a fuel cell provided in an embodiment of the present invention includes a fuel cell stack, an air stack, and a hydrogen stack; the first electrode and the second electrode of the fuel cell stack are respectively provided with an air inlet and an air outlet; the air pipeline comprises an air inlet pipeline and an air outlet pipeline, a first three-way valve is arranged on the air inlet pipeline, the first end of the first three-way valve is communicated with the air inlet of the first electrode, the second end of the first three-way valve is used for accessing air output by the air inlet pipeline, and the air outlet pipeline is communicated with the air outlet of the first electrode; the hydrogen pipeline comprises a hydrogen gas inlet pipeline and a hydrogen gas outlet pipeline, a second three-way valve, a steam-water separator, a hydrogen circulating pump and a third three-way valve are arranged on the hydrogen gas outlet pipeline, the hydrogen gas inlet pipeline is communicated with the gas inlet of the second electrode, the first end of the hydrogen gas outlet pipeline is communicated with the gas outlet of the second electrode, the second end of the hydrogen gas outlet pipeline is communicated with the hydrogen gas inlet pipeline, the first end of the second three-way valve is communicated with the hydrogen outlet of the fuel cell stack, the second end of the second three-way valve is communicated with the third end of the first three-way valve, the third end of the second three-way valve is communicated with the inlet of the steam-water separator, the outlet of the steam-water separator is communicated with the inlet of the hydrogen circulating pump, the outlet of the hydrogen circulating pump is communicated with the first end of the third three-way valve, and the two ends of the third three-way valve are communicated with the hydrogen gas inlet pipe; when the first three-way valve, the second three-way valve and the third three-way valve are in a first state, only the first end and the second end of the first three-way valve are conducted, only the first end and the third end of the second three-way valve are communicated, and only the first end and the second end of the third three-way valve are communicated; when the first three-way valve, the second three-way valve and the third three-way valve are in a second state, only the second end and the third end of the first three-way valve are communicated, only the second end and the third end of the second three-way valve are communicated, and only the first end and the third end of the third three-way valve are communicated.
The utility model provides a fuel cell's purging system can be earlier through control first three-way valve, second three-way valve and third three-way valve, make hydrogen nest of tubes and air nest of tubes carry out the purge to the first electrode and the second electrode of fuel cell stack respectively, then through controlling first three-way valve again, second three-way valve and third three-way valve, make the air inlet line in the air nest of tubes can with hydrogen pipeline intercommunication of giving vent to anger, and the air can carry out the purge to steam-water separator and the hydrogen circulating pump that set up in the hydrogen pipeline of giving vent to anger in the air inlet line, and when the air is to the hydrogen pipeline of giving vent to anger, because the characteristic of steam-water separator and hydrogen circulating pump itself, can improve the intensity of air purge, reduce the duration of purge, and then reduce the power consumption when the hydrogen pipeline of giving vent to anger carries out the purge, improve the efficiency of purging.
In a possible embodiment, an air compressor is further arranged on the air inlet pipeline, an inlet of the air compressor is used for accessing air, and an outlet of the air compressor is communicated with the second end of the first three-way valve.
In one possible embodiment, an air filter is further arranged on the air inlet pipe, an inlet of the air filter is used for introducing air, and an outlet of the air filter is communicated with an inlet of the air compressor.
In a possible embodiment, the air inlet pipe is further provided with an intercooler, an inlet of the intercooler is communicated with an outlet of the air compressor, and an outlet of the intercooler is communicated with the second end of the first three-way valve.
In one possible embodiment, the purging system of the fuel cell further includes a back pressure valve disposed in the air outlet line, an inlet of the back pressure valve communicating with an air outlet of the fuel cell stack.
In one possible embodiment, the first electrode is a cathode or anode and the second electrode is an anode or cathode.
In one possible embodiment, the purging system of the fuel cell further comprises a controller electrically connected to the first three-way valve, the second three-way valve, the third three-way valve, the air compressor, and the hydrogen circulation pump.
In a second aspect, an embodiment of the present invention further provides a purging method of the purging system of the fuel cell provided in any one of the embodiments of the first aspect, including the following steps:
controlling the first three-way valve, the second three-way valve and the third three-way valve to be in a first state, and controlling the air inlet pipeline and the hydrogen inlet pipeline to purge a first electrode and a second electrode of the fuel cell respectively;
the first three-way valve, the second three-way valve and the third three-way valve are controlled to be in a second state, only the first end and the third end of the third three-way valve are communicated, and air in the air inlet pipeline sweeps the hydrogen outlet pipeline;
the purge is stopped.
The effect produced by this purging method is the same as that produced by the purging system of the fuel cell in the first aspect, and will not be described here again.
In one possible embodiment, before the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the first state, further comprises:
receiving a command of low-temperature shutdown of the fuel cell;
detecting an ambient temperature;
and setting the cooling liquid inlet temperature of the battery fuel stack according to the first ambient temperature, and obtaining the corresponding minimum voltage of the battery cells in the battery fuel stack when the purging is stopped according to the first ambient temperature.
In one possible embodiment, before the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the second state, further comprises:
and setting the purging time of the hydrogen outlet pipeline when the first three-way valve, the second three-way valve and the third three-way valve are in the second state according to the second environment temperature.
Drawings
Fig. 1 is a schematic structural diagram of a purge system of a fuel cell according to an embodiment of the present invention;
fig. 2 is a flowchart of a purging method of a purging system of a fuel cell according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a purging system for a fuel cell according to an embodiment of the present invention may include a fuel cell stack, an air stack, and a hydrogen stack; the first electrode and the second electrode of the fuel cell stack are respectively provided with an air inlet and an air outlet; the air pipeline comprises an air inlet pipeline and an air outlet pipeline, a first three-way valve is arranged on the air inlet pipeline, the first end of the first three-way valve is communicated with the air inlet of the first electrode, the second end of the first three-way valve is used for accessing air output by the air inlet pipeline, and the air outlet pipeline is communicated with the air outlet of the first electrode; the hydrogen pipeline comprises a hydrogen gas inlet pipeline and a hydrogen gas outlet pipeline, a second three-way valve, a steam-water separator, a hydrogen circulating pump and a third three-way valve are arranged on the hydrogen gas outlet pipeline, the hydrogen gas inlet pipeline is communicated with the gas inlet of the second electrode, the first end of the hydrogen gas outlet pipeline is communicated with the gas outlet of the second electrode, the second end of the hydrogen gas outlet pipeline is communicated with the hydrogen gas inlet pipeline, the first end of the second three-way valve is communicated with the hydrogen outlet of the fuel cell stack, the second end of the second three-way valve is communicated with the third end of the first three-way valve, the third end of the second three-way valve is communicated with the inlet of the steam-water separator, the outlet of the steam-water separator is communicated with the inlet of the hydrogen circulating pump, the outlet of the hydrogen circulating pump is communicated with the first end of the third three-way valve, and the two ends of the third three-way valve are communicated with the hydrogen gas inlet pipe; when the first three-way valve, the second three-way valve and the third three-way valve are in a first state, only the first end and the second end of the first three-way valve are conducted, only the first end and the third end of the second three-way valve are communicated, and only the first end and the second end of the third three-way valve are communicated; when the first three-way valve, the second three-way valve and the third three-way valve are in a second state, only the second end and the third end of the first three-way valve are communicated, only the second end and the third end of the second three-way valve are communicated, and only the first end and the third end of the third three-way valve are communicated.
The utility model provides a fuel cell's purging system can be earlier through control first three-way valve, second three-way valve and third three-way valve, make hydrogen nest of tubes and air nest of tubes carry out the purge to the first electrode and the second electrode of fuel cell stack respectively, then through controlling first three-way valve again, second three-way valve and third three-way valve, make the air inlet line in the air nest of tubes can with hydrogen pipeline intercommunication of giving vent to anger, and the air can carry out the purge to steam-water separator and the hydrogen circulating pump that set up in the hydrogen pipeline of giving vent to anger in the air inlet line, and when the air is to the hydrogen pipeline of giving vent to anger, because the characteristic of steam-water separator and hydrogen circulating pump itself, can improve the intensity of air purge, reduce the duration of purge, and then reduce the power consumption when the hydrogen pipeline of giving vent to anger carries out the purge, improve the efficiency of purging.
The first electrode is a cathode or an anode, and the second electrode is an anode or a cathode.
In a possible embodiment, an air compressor may be further provided on the air line, an inlet of the air compressor being for air access, an outlet of the air compressor being in communication with the second end of the first three-way valve. The provision of the booster may boost the air entering the first electrode of the fuel cell stack to enhance the effect of the purge.
In the above embodiment, an intercooler and an air filter are further disposed on the air pipe, wherein an inlet of the air filter is used for introducing air, an outlet of the air filter is communicated with an inlet of the booster, an inlet of the intercooler is communicated with an outlet of the air compressor, and an outlet of the intercooler is communicated with a second end of the first three-way valve. The air filter can clear away the particulate impurity in the air, and the air of filtering impurity particle can be by air compressor pressure boost, and the air after the pressure boost can enter into the intercooler, and the intercooler can reduce the past temperature of air accident after the pressure boost, and then improves the air input.
In one possible embodiment, the purging system of the fuel cell further includes a back pressure valve disposed in the air outlet line, an inlet of the back pressure valve communicating with an air outlet of the fuel cell stack. The back pressure valve can control the on-off of the air outlet pipeline.
In one possible embodiment, the purging system of the fuel cell further comprises a controller, wherein the controller is electrically connected with the first three-way valve, the second three-way valve, the third three-way valve, the air compressor and the hydrogen circulating pump, and can control the on-off of each end of the first three-way valve, the second three-way valve and the third three-way valve so as to realize different purging functions; the controller can also control the operation of the air compressor, the hydrogen circulating pump, the intercooler and the like.
Referring to fig. 2, the embodiment of the present invention further provides a purging method of the purging system of the fuel cell provided in any one of the foregoing embodiments, including the following steps:
step S10: controlling the first three-way valve, the second three-way valve and the third three-way valve to be in a first state, and controlling the air inlet pipeline and the hydrogen inlet pipeline to purge a first electrode and a second electrode of the fuel cell respectively;
step S20: the first three-way valve, the second three-way valve and the third three-way valve are controlled to be in a second state, only the first end and the third end of the third three-way valve are communicated, and air in the air inlet pipeline sweeps the hydrogen outlet pipeline;
step S30: the purge is stopped.
The effect produced by this purging method is the same as that produced by the purging system of the fuel cell in the first aspect, and will not be described here again.
In one possible embodiment, before the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the first state, further comprises:
s1: receiving a command of low-temperature shutdown of the fuel cell;
s2: detecting an ambient temperature;
s3: and setting the cooling liquid inlet temperature of the battery fuel stack according to the first ambient temperature, and obtaining the corresponding minimum voltage of the battery cells in the battery fuel stack when the purging is stopped according to the first ambient temperature.
The working temperature of the cooling liquid inlet of the fuel cell stack can be set according to the first ambient temperature, the lower the first ambient temperature is, the higher the working temperature of the cooling liquid inlet of the fuel cell stack is, and the higher the working temperature of the cooling liquid inlet of the fuel cell stack is, the lower the working energy consumption of the heat dissipation system of the fuel cell stack is. In addition, the lowest voltage of the battery cells in the battery fuel stack can be obtained according to the first ambient temperature, and the lower the first ambient temperature is, the lower the average voltage of the battery cells of the corresponding battery fuel stack is set; namely, the first ambient temperature is in corresponding relation with the working temperature of the cooling liquid inlet of the fuel stack of the battery and the average voltage of the battery cell of the fuel stack of the battery at the end of purging, as shown in table 1;
TABLE 1
When the fuel cell stack is specifically purged, the temperature of the cooling liquid inlet and the average voltage value of the battery cells in the fuel cell stack when the purging of the fuel cell stack is finished can be obtained through table 1 according to the first ambient temperature, the temperature of the cooling liquid is maintained at a set value by controlling a heat dissipation system of the fuel cell stack, and then the first three-way valve, the second three-way valve and the third three-way valve are controlled, so that an air inlet pipeline and the hydrogen inlet pipeline respectively purge the first electrode and the second electrode of the fuel cell, and when the flat voltage of the battery cells in the fuel cell stack is smaller than the voltage corresponding to the first temperature, the purging of the fuel cell stack is finished.
In one possible embodiment, before the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the second state, further comprises:
s11: and setting the purging time of the hydrogen outlet pipeline when the first three-way valve, the second three-way valve and the third three-way valve are in the second state according to the second environment temperature.
The lower the value of the second ambient temperature is, the longer the set purge time is, and the higher the rotation speed of the air compressor is, namely, the second ambient temperature is, the purge time of the hydrogen gas outlet pipeline and the rotation speed of the air compressor are in a corresponding relationship, and the specific relationship is shown in table 2;
TABLE 2
Wherein the temperatures of the first ambient temperature and the second ambient temperature may be the same.
When the hydrogen gas outlet pipeline is purged, the time required to be purged can be obtained according to the second ambient temperature, the rotating speed of the air compressor is controlled, and when the purging time is longer than the purging time corresponding to the second ambient temperature, the purging is stopped.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A purge system for a fuel cell, comprising:
the fuel cell stack is characterized in that a first electrode and a second electrode of the fuel cell stack are respectively provided with an air inlet and an air outlet;
the air pipe group comprises an air inlet pipe and an air outlet pipe, a first three-way valve is arranged on the air inlet pipe, a first end of the first three-way valve is communicated with an air inlet of the first electrode, a second end of the first three-way valve is used for being connected with air output by the air inlet pipe, and the air outlet pipe is communicated with an air outlet of the first electrode;
the hydrogen pipe set comprises a hydrogen inlet pipe and a hydrogen outlet pipe, a second three-way valve, a steam-water separator, a hydrogen circulating pump and a third three-way valve are arranged on the hydrogen outlet pipe, the hydrogen inlet pipe is communicated with an air inlet of the second electrode, a first end of the hydrogen outlet pipe is communicated with an air outlet of the second electrode, a second end of the hydrogen outlet pipe is communicated with the hydrogen inlet pipe, a first end of the second three-way valve is communicated with a hydrogen outlet of the fuel cell stack, a second end of the second three-way valve is communicated with a third end of the first three-way valve, a third end of the second three-way valve is communicated with an inlet of the steam-water separator, an outlet of the steam-water separator is communicated with an inlet of the hydrogen circulating pump, an outlet of the hydrogen circulating pump is communicated with a first end of the third three-way valve, and two ends of the third three-way valve are communicated with the hydrogen inlet pipe;
when the first three-way valve, the second three-way valve and the third three-way valve are in a first state, only the first end and the second end of the first three-way valve are conducted, only the first end and the third end of the second three-way valve are communicated, and only the first end and the second end of the third three-way valve are communicated;
when the first three-way valve, the second three-way valve and the third three-way valve are in a second state, only the second end and the third end of the first three-way valve are communicated, only the second end and the third end of the second three-way valve are communicated, and only the first end and the third end of the third three-way valve are communicated.
2. The fuel cell purge system of claim 1, wherein an air compressor is further provided on the air intake line, an inlet of the air compressor being for intake of air, an outlet of the air compressor being in communication with the second end of the first three-way valve.
3. The fuel cell purge system according to claim 2, wherein an air cleaner is further provided in the air intake pipe, an inlet of the air cleaner is for introducing air, and an outlet of the air cleaner is in communication with an inlet of the air compressor.
4. The fuel cell purge system according to claim 2, wherein an intercooler is further provided in the air intake line, an inlet of the intercooler is in communication with an outlet of the air compressor, and an outlet of the intercooler is in communication with the second end of the first three-way valve.
5. The fuel cell purge system of claim 1, further comprising a back pressure valve disposed in said air outlet line, an inlet of said back pressure valve communicating with an air outlet of said fuel cell stack.
6. The fuel cell purging system as recited in claim 1, wherein said first electrode is a cathode or an anode and said second electrode is an anode or a cathode.
7. The fuel cell purging system as set forth in any one of claims 1 to 6, further comprising a controller electrically connected to the first three-way valve, the second three-way valve, the third three-way valve, the air compressor, and the hydrogen circulation pump.
8. A purge method of a purge system of a fuel cell according to any one of claims 1 to 7, comprising: controlling the first three-way valve, the second three-way valve and the third three-way valve to be in a first state, and controlling the air inlet pipeline and the hydrogen inlet pipeline to purge a first electrode and a second electrode of the fuel cell respectively;
the first three-way valve, the second three-way valve and the third three-way valve are controlled to be in a second state, only the first end and the third end of the third three-way valve are communicated, and air in the air inlet pipeline sweeps the hydrogen outlet pipeline;
the purge is stopped.
9. The purge method of claim 8, further comprising, prior to the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the first state:
receiving a command of low-temperature shutdown of the fuel cell;
detecting an ambient temperature;
and setting the cooling liquid inlet temperature of the battery fuel stack according to the first ambient temperature, and obtaining the corresponding minimum voltage of the battery cells in the battery fuel stack when the purging is stopped according to the first ambient temperature.
10. The purge method of claim 9, further comprising, prior to the step of controlling the first three-way valve, the second three-way valve, and the third three-way valve to be in the second state:
and setting the purging time of the hydrogen outlet pipeline when the first three-way valve, the second three-way valve and the third three-way valve are in the second state according to the second environment temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796232.7A CN115050993B (en) | 2022-07-06 | 2022-07-06 | Purging system for fuel cell and purging method for purging system for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796232.7A CN115050993B (en) | 2022-07-06 | 2022-07-06 | Purging system for fuel cell and purging method for purging system for fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115050993A CN115050993A (en) | 2022-09-13 |
| CN115050993B true CN115050993B (en) | 2024-01-12 |
Family
ID=83166055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210796232.7A Active CN115050993B (en) | 2022-07-06 | 2022-07-06 | Purging system for fuel cell and purging method for purging system for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115050993B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129543A (en) * | 2019-12-31 | 2020-05-08 | 潍柴动力股份有限公司 | Air supply system and fuel cell engine with same |
| CN111755720A (en) * | 2020-06-24 | 2020-10-09 | 湖北工业大学 | Purging and dewatering low-temperature storage control method for fuel cell engine |
| CN212725386U (en) * | 2020-08-07 | 2021-03-16 | 潍柴动力股份有限公司 | Fuel cell system |
| CN113013444A (en) * | 2021-02-09 | 2021-06-22 | 广西玉柴机器股份有限公司 | Air subsystem integrating hydrogen purging device and tail exhaust dilution function of fuel cell system and control method thereof |
| CN114361527A (en) * | 2022-03-18 | 2022-04-15 | 国家电投集团氢能科技发展有限公司 | Fuel cell purge system and purge method |
| CN114614048A (en) * | 2022-03-18 | 2022-06-10 | 苏州溯驭技术有限公司 | Hydrogen fuel cell purging system and anode fluctuating hydrogen pressure purging method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5942620B2 (en) * | 2012-06-15 | 2016-06-29 | スズキ株式会社 | Vehicle fuel cell device |
-
2022
- 2022-07-06 CN CN202210796232.7A patent/CN115050993B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129543A (en) * | 2019-12-31 | 2020-05-08 | 潍柴动力股份有限公司 | Air supply system and fuel cell engine with same |
| CN111755720A (en) * | 2020-06-24 | 2020-10-09 | 湖北工业大学 | Purging and dewatering low-temperature storage control method for fuel cell engine |
| CN212725386U (en) * | 2020-08-07 | 2021-03-16 | 潍柴动力股份有限公司 | Fuel cell system |
| CN113013444A (en) * | 2021-02-09 | 2021-06-22 | 广西玉柴机器股份有限公司 | Air subsystem integrating hydrogen purging device and tail exhaust dilution function of fuel cell system and control method thereof |
| CN114361527A (en) * | 2022-03-18 | 2022-04-15 | 国家电投集团氢能科技发展有限公司 | Fuel cell purge system and purge method |
| CN114614048A (en) * | 2022-03-18 | 2022-06-10 | 苏州溯驭技术有限公司 | Hydrogen fuel cell purging system and anode fluctuating hydrogen pressure purging method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115050993A (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110165247B (en) | Fuel cell automobile thermal management system with cold start function and control method thereof | |
| CN109786790B (en) | Fuel cell system capable of being started and stopped at low temperature and control method thereof | |
| CN112510228B (en) | Device and method for increasing air inlet temperature of cathode and anode of fuel cell | |
| CN112186223A (en) | Automobile fuel cell system and air humidity control method thereof | |
| CN111890956A (en) | Thermoelectric generation and low-temperature phase change cooling heat storage system of fuel cell vehicle | |
| CN111799485B (en) | Hydrogen fuel cell low-temperature starting system and heating method thereof | |
| CN212230532U (en) | Fuel cell low-temperature quick cold start system and vehicle | |
| CN113270614B (en) | Air supply system of vehicle proton exchange membrane fuel cell and working method | |
| CN112993330A (en) | Cold purge method of fuel cell system | |
| CN112234225A (en) | Fuel cell gas supply system with quick response capability | |
| CN109768302B (en) | Fuel cell testing system with waste heat recovery device and working method | |
| CN213425026U (en) | Low-temperature cold start test platform for hydrogen fuel cell engine | |
| CN112197967B (en) | Fuel cell engine reliability testing method | |
| CN113224354A (en) | Dehydration and drying control method for low-temperature hydrogen storage path of fuel cell in winter | |
| CN113964340A (en) | System and method for low-temperature quick cold start of fuel cell and vehicle | |
| CN112397744A (en) | Air supply cooling system of hydrogen fuel cell | |
| CN111769305A (en) | Fuel cell system with compressor working point and dynamic response capability taken into consideration | |
| CN115050993B (en) | Purging system for fuel cell and purging method for purging system for fuel cell | |
| CN214152954U (en) | Low-temperature purging system of liquid cooling fuel cell system | |
| CN202949004U (en) | Fuel battery cooling system capable of exhausting automatically | |
| CN108344575A (en) | A kind of test device for fuel battery engines | |
| CN115332582B (en) | Low-temperature starting control system for fuel cell | |
| CN113540500B (en) | Low-temperature cold start control method for hydrogen fuel cell engine | |
| CN217641419U (en) | Cold starting device of fuel cell system | |
| CN114497641B (en) | Fuel cell air subsystem and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |