CN113285087B - Heat radiation system for fuel cell - Google Patents
Heat radiation system for fuel cell Download PDFInfo
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- CN113285087B CN113285087B CN202010101384.1A CN202010101384A CN113285087B CN 113285087 B CN113285087 B CN 113285087B CN 202010101384 A CN202010101384 A CN 202010101384A CN 113285087 B CN113285087 B CN 113285087B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04253—Means for solving freezing problems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04268—Heating of fuel cells during the start-up of the fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04738—Temperature of auxiliary devices, e.g. reformer, compressor, burner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a heat dissipation system for a fuel cell, which comprises an electric pile, a circulation pump, a heat dissipation assembly and a hydrogen assembly, wherein the circulation pump comprises an air pump and a cooling liquid pipeline, the hydrogen assembly comprises a hydrogen supply component and a circulation pipeline component, the first end of the heat dissipation assembly is communicated with a cooling liquid outlet of the electric pile, the second end of the heat dissipation assembly is communicated with an inlet of the cooling liquid pipeline, the third end of the heat dissipation assembly is communicated with an outlet of the cooling liquid pipeline, the fourth end of the heat dissipation assembly is communicated with the cooling liquid inlet of the electric pile, the first end of the hydrogen supply component is communicated with a hydrogen source, the second end of the hydrogen supply component is communicated with an air inlet of an anode of the electric pile, the third end of the hydrogen supply component is communicated with an air outlet of the air pump, one end of the circulation pipeline component is communicated with an air outlet of the anode of the electric pile, and the other end of the circulation pipeline component is communicated with the air inlet of the air pump. The system has the advantage of effectively avoiding cold start failure caused by secondary freezing when the fuel cell engine is started in a severe cold area.
Description
Technical Field
The present invention relates to a heat dissipation system, and more particularly, to a heat dissipation system for a fuel cell.
Background
The hydrogen fuel cell is a power generation device which directly converts chemical energy generated by the reaction of hydrogen and oxygen into electric energy through electrochemical reaction, has the advantages of high power generation efficiency, small environmental pollution and the like, and is widely applied to the field of automobiles. The high and cold adaptability is an important index for starting the fuel cell, the temperature of the fuel cell can meet the running requirement in a short time by self-heating in the cold starting process of the fuel cell, but the temperature rise of the hydrogen circulating pump is slow because of no heating device. Because a certain amount of water vapor is generated when the fuel cell is in cold start and enters the hydrogen circulating pump, if the temperature of the hydrogen circulating pump is low, such as minus 30 ℃, the water vapor entering the hydrogen circulating pump can be subjected to 'secondary freezing' in the pump. The main reason why the "second freezing" occurs is that the temperature of the hydrogen circulation pump cannot be raised to 0 ℃ or higher in a short time.
The existing hydrogen circulating pump is not designed to be heated or an external PTC is used for heating the whole hydrogen system, so that the heating speed of the hydrogen circulating pump is low, the heating effect is poor, and the requirement of cold start of a fuel cell engine in a severe cold region cannot be met.
In view of the foregoing, it would be desirable to provide a heat dissipation system for a fuel cell that overcomes the deficiencies of the prior art.
Disclosure of Invention
The present invention is directed to a heat dissipation system for a fuel cell that overcomes the shortcomings of the prior art. The object of the present invention is achieved by the following technical means.
One embodiment of the invention provides a heat dissipation system for a fuel cell, wherein the heat dissipation system for the fuel cell comprises an electric pile, a circulating pump, a heat dissipation assembly and a hydrogen assembly, the circulating pump comprises an air pump and a cooling liquid pipeline, the hydrogen assembly comprises a hydrogen supply component and a circulating pipeline component, a first end of the heat dissipation assembly is communicated with a cooling liquid outlet of the electric pile, a second end of the heat dissipation assembly is communicated with an inlet of the cooling liquid pipeline of the circulating pump, a third end of the heat dissipation assembly is communicated with an outlet of the cooling liquid pipeline of the circulating pump, a fourth end of the heat dissipation assembly is communicated with a cooling liquid inlet of the electric pile, a first end of the hydrogen supply component is communicated with a hydrogen source, a second end of the hydrogen supply component is communicated with an air inlet of an anode of the electric pile, a third end of the hydrogen supply component is communicated with an air outlet of the air pump, one end of the circulating pipeline component is communicated with an air outlet of the anode of the electric pile, the other end of the circulating pipeline component is communicated with an air inlet of the air pump, and the cooling liquid circulating pipeline is installed on the air pump.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, the heat dissipation assembly includes a first pipeline, a three-way valve, a second pipeline, a third pipeline, a heat sink, a first three-way pipeline, a liquid pump, and a fourth pipeline, a first end of the third valve is communicated with the coolant outlet of the stack through the first pipeline, a second end of the third valve is communicated with the inlet of the coolant pipeline of the circulation pump through the second pipeline, a third end of the third valve is communicated with one end of the heat sink, the other end of the heat sink is communicated with the first end of the first three-way pipeline, a second end of the first three-way pipeline is communicated with the outlet of the coolant pipeline of the circulation pump, a third end of the first three-way pipeline is communicated with the liquid pump, and the liquid pump is communicated with the coolant inlet of the stack through the fourth pipeline.
According to the heat radiation system for the fuel cell provided by the embodiment of the invention, the openings of the second end and the third end of the three-way valve are adjustable, and the openings of the second end and the third end of the three-way valve are determined according to the temperature of the cooling liquid at the cooling liquid outlet of the fuel cell stack.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the present invention, the hydrogen supply component includes a fifth pipeline, a pressure reducer and a second three-way pipeline, the pressure reducer is communicated with the hydrogen source through the fifth pipeline, a first end of the second three-way pipeline is communicated with the pressure reducer, a second end of the second three-way pipeline is communicated with the air outlet of the air pump, and a third end of the second three-way pipeline is communicated with the air inlet of the anode of the stack.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the present invention, the circulation pipeline component includes a sixth pipeline, a moisture separator and a seventh pipeline, the moisture separator is communicated with the air outlet of the positive electrode of the stack through the sixth pipeline, and the air inlet of the air pump is communicated with the moisture separator through the seventh pipeline.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the invention, when the temperature of the coolant at the coolant outlet of the stack is lower than the preset first temperature, the first end and the second end of the three-way valve are opened and the third end is closed, the coolant absorbs the heat generated by the stack operation and enters the coolant pipeline of the circulating pump through the first pipeline, the three-way valve and the second pipeline, and the coolant heats the circulating pump and then returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the invention, when the temperature of the coolant at the coolant outlet of the stack is lower than the preset first temperature, the first end and the second end of the three-way valve are opened and the third end is closed, the coolant absorbs the heat generated by the stack operation and enters the coolant pipeline of the circulating pump through the first pipeline, the three-way valve and the second pipeline, and the coolant heats the circulating pump and then returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the present invention, when the temperature of the coolant at the coolant outlet of the stack is higher than or equal to the preset first temperature and lower than the preset second temperature, the first end and the second end of the three-way valve are opened and the third end is partially opened, the coolant absorbs the heat generated by the operation of the stack and enters the three-way valve through the first pipeline, part of the coolant enters the coolant pipeline of the circulation pump through the second pipeline and heats the circulation pump and then returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline, the remaining part of the coolant enters the radiator through the third pipeline and returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline after heat dissipation, and the second temperature is higher than the first temperature.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the invention, when the temperature of the coolant at the coolant outlet of the stack is higher than or equal to the preset second temperature, the first end and the third end of the three-way valve are opened and the second end is closed, the coolant absorbs the heat generated by the stack operation and enters the radiator through the first pipeline, the three-way valve and the third pipeline for heat dissipation, and the cooled coolant returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline.
The heat dissipation system for the fuel cell has the advantages that: the hydrogen circulating pump can be independently used for heating, the heating speed is high, and the heating effect is better than that of the existing external PTC heating; the heat generated by the galvanic pile is utilized to rapidly heat the hydrogen circulating pump, and an additional heating device is not needed; the secondary freezing of the hydrogen circulating pump can be effectively avoided when the fuel cell engine is started in the alpine region, so that the cold start failure is caused.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only for illustrating the technical solutions of the present invention and are not intended to limit the scope of the present invention. In the figure:
FIG. 1 shows a schematic diagram for a heat dissipation system according to an embodiment of the invention;
fig. 2 shows a schematic view of a circulation pump of the heat radiation system for a fuel cell according to one embodiment of the present invention shown in fig. 1.
Detailed Description
Fig. 1-2 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and use the invention. Some conventional aspects have been simplified or omitted for the purpose of teaching the technical solutions of the present invention. Those skilled in the art will appreciate that variations or substitutions from these embodiments will fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Thus, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.
Fig. 1-2 show a schematic diagram for a heat dissipation system according to an embodiment of the invention. As shown in fig. 1-2, the heat dissipation system for the fuel cell includes a stack 1, a circulation pump 2, a heat dissipation assembly 3, and a hydrogen assembly 4, where the circulation pump 2 includes an air pump 21 and a coolant pipeline 22, the hydrogen assembly 4 includes a hydrogen supply component 41 and a circulation pipeline component 42, a first end of the heat dissipation assembly 3 is communicated with a coolant outlet of the stack 1, a second end of the heat dissipation assembly 3 is communicated with an inlet 22a of the coolant pipeline 22 of the circulation pump 2, a third end of the heat dissipation assembly 3 is communicated with an outlet 22b of the coolant pipeline 22 of the circulation pump 2, a fourth end of the heat dissipation assembly 3 is communicated with a coolant inlet of the stack 1, a first end of the hydrogen supply component 41 is communicated with a hydrogen source, a second end of the hydrogen supply component 41 is communicated with an air inlet of an anode of the stack 1, a third end of the hydrogen supply component 41 is communicated with an air outlet 21b of the air pump 21, one end of the circulation pipeline component 42 is communicated with an air outlet of the anode of the stack 1, the other end of the circulation pipeline component 42 is communicated with an air inlet 21a of the air pump 21, and a coolant circulation pipeline is installed on the air pump 21.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, the heat dissipation assembly 3 includes a first pipe 31, a three-way valve 32, a second pipe 33, a third pipe 34, a radiator 35, a first three-way pipe 36, a liquid pump 37 and a fourth pipe 38, a first end of the third valve 32 is communicated with the coolant outlet of the stack 1 through the first pipe 31, a second end of the third valve 32 is communicated with the inlet 22a of the coolant pipe 22 of the circulation pump 2 through the second pipe 33, a third end of the third valve 32 is communicated with one end of the radiator 35, the other end of the radiator 35 is communicated with a first end of the first three-way pipe 36, a second end of the first three-way pipe 36 is communicated with the outlet 22b of the coolant pipe 22 of the circulation pump 2, a third end of the first three-way pipe 36 is communicated with the liquid pump 37, and the liquid pump 37 is communicated with the coolant inlet of the stack 1 through the fourth pipe 38.
According to the heat radiation system for a fuel cell provided by one embodiment of the present invention, the opening degrees of the second end and the third end of the three-way valve 32 are adjustable, and the opening degrees of the second end and the third end of the three-way valve 32 are determined according to the temperature of the coolant at the coolant outlet of the stack 1. The three-way valve 32 is used to adjust the flow rate of the coolant passing through the circulation pump 2 and the radiator 35, thereby preventing the circulation pump 2 from having an excessively high temperature.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, the hydrogen supply component 41 includes a fifth pipeline 411, a pressure reducer 412 and a second three-way pipeline 413, the pressure reducer 412 is communicated with the hydrogen source through the fifth pipeline 411, a first end of the second three-way pipeline 413 is communicated with the pressure reducer 412, a second end of the second three-way pipeline 413 is communicated with the air outlet 21b of the air pump 21, and a third end of the second three-way pipeline 413 is communicated with the air inlet of the anode of the stack 1.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the present invention, the circulation pipeline part 42 includes a sixth pipeline 421, a moisture separator 422 and a seventh pipeline 423, the moisture separator 422 is communicated with the air outlet of the anode of the stack 1 through the sixth pipeline 421, and the air inlet 21a of the air pump 21 is communicated with the moisture separator 422 through the seventh pipeline 423. The moisture separator 422 separates water from the mixed gas exiting the stack and exits the recirculation line assembly 42.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, when the temperature of the coolant at the coolant outlet of the stack 1 is lower than the preset first temperature, the first end and the second end of the three-way valve 32 are opened and the third end is closed, the coolant absorbs the heat generated by the operation of the stack 1 and enters the coolant pipeline 22 of the circulation pump 2 through the first pipeline 31, the three-way valve 32 and the second pipeline 33, and the coolant heats the circulation pump 2 and then returns to the stack 1 through the first three-way pipeline 36, the liquid pump 37 and the fourth pipeline 38.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, when the temperature of the coolant at the coolant outlet of the stack 1 is lower than the preset first temperature, the first end and the second end of the three-way valve 32 are opened and the third end is closed, the coolant absorbs the heat generated by the operation of the stack 1 and enters the coolant pipeline 22 of the circulation pump 2 through the first pipeline 31, the three-way valve 32 and the second pipeline 33, and the coolant heats the circulation pump 2 and then returns to the stack 1 through the first three-way pipeline 36, the liquid pump 37 and the fourth pipeline 38.
According to the heat dissipation system for the fuel cell provided by the above embodiment of the present invention, when the temperature of the coolant at the coolant outlet of the stack 1 is higher than or equal to the preset first temperature and lower than the preset second temperature, the first end and the second end of the three-way valve 32 are opened and the third end is partially opened, the coolant absorbs the heat generated by the operation of the stack 1 and enters the three-way valve 32 through the first pipeline 31, part of the coolant enters the coolant pipeline 22 of the circulation pump 2 through the second pipeline 33 and heats the circulation pump 2 and then returns to the stack 1 through the first three-way pipeline 36, the liquid pump 37 and the fourth pipeline 38, and the rest of the coolant enters the radiator 35 through the third pipeline 34 to dissipate heat and then returns to the stack 1 through the first three-way pipeline 36, the liquid pump 37 and the fourth pipeline 38, where the second temperature is higher than the first temperature.
According to the heat dissipation system for a fuel cell provided by one embodiment of the present invention, when the temperature of the coolant at the coolant outlet of the stack 1 is higher than or equal to the preset second temperature, the first end and the third end of the three-way valve 32 are opened and the second end is closed, the coolant absorbs the heat generated by the operation of the stack 1 and enters the radiator 35 through the first pipeline 31, the three-way valve 32 and the third pipeline 34 to dissipate the heat, and the dissipated coolant returns to the stack 1 through the first three-way pipeline 36, the liquid pump 37 and the fourth pipeline 38.
The heat dissipation system for the fuel cell has the advantages that: the hydrogen circulating pump can be independently used for heating, the heating speed is high, and the heating effect is better than that of the existing external PTC heating; the hydrogen circulating pump is rapidly heated by utilizing the heat generated by the galvanic pile without an additional heating device; the cold start failure caused by the secondary freezing of the hydrogen circulating pump can be effectively avoided when the fuel cell engine is started in the alpine region.
It will of course be realised that whilst the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth. Therefore, while this invention has been described with reference to preferred embodiments, it is not intended that the novel apparatus be limited thereby, but on the contrary, it is intended to cover various modifications and equivalent arrangements included within the broad scope of the above disclosure and the appended claims.
Claims (6)
1. A heat dissipation system for a fuel cell comprises an electric pile, a circulation pump, a heat dissipation assembly and a hydrogen assembly, and is characterized in that the circulation pump comprises an air pump and a cooling liquid pipeline, the hydrogen assembly comprises a hydrogen supply component and a circulation pipeline component, a first end of the heat dissipation assembly is communicated with a cooling liquid outlet of the electric pile, a second end of the heat dissipation assembly is communicated with an inlet of the cooling liquid pipeline of the circulation pump, a third end of the heat dissipation assembly is communicated with an outlet of the cooling liquid pipeline of the circulation pump, a fourth end of the heat dissipation assembly is communicated with a cooling liquid inlet of the electric pile, a first end of the hydrogen supply component is communicated with a hydrogen source, a second end of the hydrogen supply component is communicated with an air inlet of an anode of the electric pile, a third end of the hydrogen supply component is communicated with an air outlet of the air pump, one end of the circulation pipeline component is communicated with an air outlet of the anode of the electric pile, the other end of the circulation pipeline component is communicated with an air inlet of the air pump, and the cooling liquid pipeline is installed on the air pump;
the heat dissipation assembly comprises a first pipeline, a three-way valve, a second pipeline, a third pipeline, a radiator, a first three-way pipeline, a liquid pump and a fourth pipeline, wherein a first end of the three-way valve is communicated with a cooling liquid outlet of the galvanic pile through the first pipeline, a second end of the three-way valve is communicated with an inlet of the cooling liquid pipeline of the circulating pump through the second pipeline, a third end of the three-way valve is communicated with one end of the radiator, the other end of the radiator is communicated with the first end of the first three-way pipeline, a second end of the first three-way pipeline is communicated with an outlet of the cooling liquid pipeline of the circulating pump, a third end of the first three-way pipeline is communicated with the liquid pump, and the liquid pump is communicated with the cooling liquid inlet of the galvanic pile through the fourth pipeline;
the hydrogen supply component comprises a fifth pipeline, a pressure reducer and a second three-way pipeline, the pressure reducer is communicated with a hydrogen source through the fifth pipeline, the first end of the second three-way pipeline is communicated with the pressure reducer, the second end of the second three-way pipeline is communicated with the gas outlet of the gas pump, and the third end of the second three-way pipeline is communicated with the gas inlet of the positive electrode of the galvanic pile.
2. The heat radiation system for a fuel cell according to claim 1, wherein the opening degrees of the second and third ends of the three-way valve are adjustable, and the opening degrees of the second and third ends of the three-way valve are determined according to the temperature of the coolant at the stack coolant outlet.
3. The heat dissipation system for a fuel cell as claimed in claim 1, wherein the circulation pipeline component includes a sixth pipeline, a moisture separator, and a seventh pipeline, the moisture separator is communicated with the air outlet of the anode of the stack through the sixth pipeline, and the air inlet of the air pump is communicated with the moisture separator through the seventh pipeline.
4. The heat dissipating system for a fuel cell according to claim 2, wherein when the temperature of the coolant at the coolant outlet of the stack is lower than the first predetermined temperature, the first and second ends of the three-way valve are opened and the third end is closed, the coolant absorbs heat generated by the stack operation and enters the coolant line of the circulating pump through the first line, the three-way valve and the second line, and the coolant heats the circulating pump and then returns to the stack through the first three-way line, the liquid pump and the fourth line.
5. The heat dissipating system for a fuel cell according to claim 4, wherein when the temperature of the coolant at the coolant outlet of the stack is higher than or equal to a predetermined first temperature and lower than a predetermined second temperature, the first end and the second end of the three-way valve are opened and the third end is partially opened, the coolant absorbs heat generated by the stack operation and enters the three-way valve through the first pipeline, part of the coolant enters the coolant pipeline of the circulating pump through the second pipeline and heats the circulating pump and then returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline, and the remaining part of the coolant enters the radiator through the third pipeline and returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline after dissipating heat, and the second temperature is higher than the first temperature.
6. The heat dissipating system for a fuel cell according to claim 5, wherein when the temperature of the coolant at the coolant outlet of the stack is higher than or equal to a predetermined second temperature, the first end and the third end of the three-way valve are opened and the second end is closed, the coolant absorbs heat generated by the stack operation and enters the heat sink through the first pipeline, the three-way valve and the third pipeline to dissipate the heat, and the dissipated coolant returns to the stack through the first three-way pipeline, the liquid pump and the fourth pipeline.
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| CN202010101384.1A CN113285087B (en) | 2020-02-19 | 2020-02-19 | Heat radiation system for fuel cell |
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| CN202010101384.1A CN113285087B (en) | 2020-02-19 | 2020-02-19 | Heat radiation system for fuel cell |
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| CN113285087B true CN113285087B (en) | 2022-10-18 |
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| JP4735642B2 (en) * | 2007-12-27 | 2011-07-27 | 日産自動車株式会社 | FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM |
| CN102195056A (en) * | 2010-03-05 | 2011-09-21 | 苏州氢洁电源科技有限公司 | Metal hydride hydrogen storage unit-carrying portable power supply with fuel cells |
| CN205900704U (en) * | 2016-08-19 | 2017-01-18 | 上海汽车集团股份有限公司 | Fuel cell's discharging hydrogen system |
| CN208489292U (en) * | 2018-06-14 | 2019-02-12 | 南通百应能源有限公司 | A kind of fuel cell pile hydrogen circulation device |
| CN109119656B (en) * | 2018-08-24 | 2021-08-24 | 上海汽车集团股份有限公司 | Gas circulation system of fuel cell stack |
| CN209096524U (en) * | 2018-11-20 | 2019-07-12 | 吉林大学 | A kind of fuel cell car heat management system |
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| CN109962269A (en) * | 2019-04-11 | 2019-07-02 | 北京亿华通科技股份有限公司 | Fuel cell is lengthened the life system and method |
| CN110690481B (en) * | 2019-09-23 | 2021-04-27 | 北京亿华通科技股份有限公司 | Pressure regulator control method of fuel cell system |
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2020
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