CN112397744A - Air supply cooling system of hydrogen fuel cell - Google Patents
Air supply cooling system of hydrogen fuel cell Download PDFInfo
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- CN112397744A CN112397744A CN202011326051.5A CN202011326051A CN112397744A CN 112397744 A CN112397744 A CN 112397744A CN 202011326051 A CN202011326051 A CN 202011326051A CN 112397744 A CN112397744 A CN 112397744A
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- cooling water
- intercooler
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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
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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
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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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
- H01M8/04208—Cartridges, cryogenic media or cryogenic reservoirs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04373—Temperature; Ambient temperature of auxiliary devices, e.g. reformers, compressors, burners
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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
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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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- Manufacturing & Machinery (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
The invention relates to an air supply cooling system of a hydrogen fuel cell, which comprises an intercooler, wherein the input end of an air inlet pipeline of the intercooler is connected to the output end of an air compressor, and an exhaust pipeline is connected to a galvanic pile; the system further comprises a fan type radiator, a cooling water pump and a main controller, wherein the input end of the fan type radiator is connected to a cooling liquid outlet of the air compressor, the output end of the fan type radiator is connected to the cooling water pump, the output end of the cooling water pump is connected to the input end of a heat absorption pipeline of the intercooler, the output end of the heat absorption pipeline of the intercooler is connected to a cooling liquid inlet of the air compressor controller, a cooling liquid outlet of the air compressor controller is connected to a cooling liquid inlet of the air compressor, and the main controller is connected with the fan type radiator and. Compared with the prior art, the invention adopts a series structure, and has the advantages of reducing the complexity and the volume of the system and the like.
Description
Technical Field
The present invention relates to fuel cell air subsystems, and more particularly to a hydrogen fuel cell air supply cooling system.
Background
Proton exchange membrane fuel cells use hydrogen and air as reactants to generate electricity and water. The method has high conversion efficiency, no pollution and zero emission, and is the development direction of vehicle-mounted energy in the future. Currently, as commercialization of fuel cell systems is advanced, power demand is increasing. With the increase of power, the power of the air compressor required to be matched is increased, so that the heat dissipation capacity of the air compressor is increased continuously. Therefore, the air compressor also needs to add a cooling water circuit for reducing the temperature of its mechanical structure and its controller. However, chinese patent CN109159657A discloses a fuel cell vehicle thermal management system, and the current cooling design scheme is often to directly connect it in parallel with intercooler cooling. This requires the configuration of a proportional valve to control the flow distribution of the cooling water, which adds complexity to the structure of the air supply system.
Disclosure of Invention
The invention aims to provide an air supply cooling system for a hydrogen fuel cell, which is characterized in that an intercooler cooling water path, an air compressor controller cooling water path and an air compressor cooling water path are directly connected in series, so that the number of cooling liquid pipelines and a proportional valve for controlling parallel flow are reduced, the system integration degree of the fuel cell is improved, and the arrangement difficulty is reduced.
The purpose of the invention can be realized by the following technical scheme:
the air supply cooling system for the hydrogen fuel cell comprises an intercooler, wherein the input end of a heat release pipeline of the intercooler is connected to the output end of an air compressor, and the output end of the heat release pipeline of the intercooler is connected to a galvanic pile; the system further comprises a fan type radiator, a cooling water pump, a first temperature sensor, a second temperature sensor and a main controller, wherein the first temperature sensor is arranged between the air compressor and the intercooler, the second temperature sensor is arranged at the output end of a heat release pipeline of the intercooler, the input end of the fan type radiator is connected to a cooling liquid outlet of the air compressor, the output end of the fan type radiator is connected to the cooling water pump, the output end of the cooling water pump is connected to the input end of a heat absorption pipeline of the intercooler, the output end of the heat absorption pipeline of the intercooler is connected to a cooling liquid inlet of the air compressor controller, a cooling liquid outlet of the air compressor controller is connected to a cooling liquid inlet of the air compressor, and the main controller is respectively connected with the first temperature sensor, the second temperature sensor, the.
The system also includes a cooling water tank connected to a line between the fan radiator and the cooling water pump.
And an air filter is arranged at the input end of the air compressor.
And a particle filter is arranged between the fan type radiator and the cooling water pump.
The system further includes a cooling water tank connected to the pipe between the particulate filter and the cooling water pump.
The first temperature sensor is arranged at the output end of the air compressor.
The first temperature sensor and the second temperature sensor are both gas temperature sensors.
The master controller is configured to perform the steps of:
when air supply needs to be started, a cooling water pump is started, the outlet temperature of the intercooler acquired by the second temperature sensor is received, and the fan type radiator is started until the output temperature of the intercooler reaches a preset value;
controlling the rotating speed of the fan type radiator according to a feedback algorithm to maintain the temperature of the outlet of the intercooler within a preset temperature range;
and controlling the rotating speed of the cooling water pump according to a feedback algorithm, so that the outlet temperature of the air compressor acquired by the first temperature sensor is maintained in a safe working interval.
The preset value is located in a preset temperature interval.
The feedback algorithm is a PID algorithm.
Compared with the prior art, the invention has the following beneficial effects:
1) the intercooler cooling water path, the air compressor controller cooling water path and the air compressor cooling water path are directly connected in series, the number of cooling liquid pipelines and the proportional valve used for controlling the parallel flow are reduced, the system integration level of the fuel cell is improved, and the difficulty of arrangement is reduced.
2) Due to the adoption of the serial structure, the control strategy is simpler, and the requirement on the main controller is lower.
3) The cooling water pump is started first, and then the cooling fan is started, so that the output of the intercooler can be quickly heated, and the cold machine starting of the fuel cell system is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a control strategy of the present invention;
wherein: 1. air cleaner, 2, air compressor machine, 3, first temperature sensor, 4, intercooler, 5, second temperature sensor, 6, air compressor machine controller, 7, coolant tank, 8, fan radiator, 9, cooling water pump, 10, particulate filter.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Since the parallel system can control the flow distribution of the two branches, it is usually selected as a design solution of the cooling device. However, the inventor of the present application has devised the following technical solutions through his own thinking
An air supply cooling system for a hydrogen fuel cell, as shown in fig. 1, comprises an intercooler 4, wherein the input end of a heat release pipeline (namely an air inlet pipeline) of the intercooler 4 is connected to the output end of an air compressor 2, and the output end of the heat release pipeline is connected to a galvanic pile; the system also comprises a fan type radiator 8, a cooling water pump 9 and a first temperature sensor 3, second temperature sensor 5 and main control unit, first temperature sensor 3 is located between air compressor machine 2 and the intercooler 4, second temperature sensor 5 locates the output of the heat release pipeline of intercooler 4, fan radiator 8's input is connected to the coolant outlet of air compressor machine 2, the output is connected to cooling water pump 9, cooling water pump 9's output is connected to the input of the heat absorption pipeline of intercooler 4, the output of the heat absorption pipeline of intercooler 4 (being the coolant pipeline) is connected to the coolant entry of air compressor machine controller 6, the coolant outlet of air compressor machine controller 6 is connected to the coolant entry of air compressor machine 2, main control unit connects first temperature sensor 3 respectively, second temperature sensor 5, fan radiator 8 and cooling water pump 9.
The intercooler cooling water path, the air compressor controller cooling water path and the air compressor cooling water path are directly connected in series, the number of cooling liquid pipelines and the proportional valve used for controlling the parallel flow are reduced, the system integration level of the fuel cell is improved, and the difficulty of arrangement is reduced. The system also comprises a cooling water tank 7, the cooling water tank 7 being connected to the line between the fan radiator 8 and the cooling water pump 9.
In another embodiment, the air compressor 2 is provided at its input with the air cleaner 1, and a particulate filter 8 is provided between the fan radiator 8 and the cooling water pump 9, in which case the cooling water tank 7 is connected to a line between the particulate filter 8 and the cooling water pump 9.
In this embodiment, first temperature sensor 3 is located the output of air compressor machine 2, and first temperature sensor 3 and second temperature sensor 5 are gas temperature sensor.
Further, as shown in fig. 2, the master controller is configured to perform the steps of:
when air supply needs to be started, the cooling water pump 9 is started, the intercooler outlet temperature collected by the second temperature sensor 5 is received, and the fan type radiator 8 is started until the intercooler output temperature reaches a preset value, so that the fuel cell system is started as soon as possible. Therefore, when the air supply system starts to work, the heat dissipation fan is not started for heat dissipation, and the air heating time is favorably shortened. After the cooling water pump is started, the cooling liquid heated by the air compressor can circularly enter the intercooler, and the effect of heating the air is also achieved.
Controlling the rotating speed of the fan type radiator 8 according to a feedback algorithm to maintain the outlet temperature of the intercooler within a preset temperature range;
and controlling the rotating speed of the cooling water pump 9 according to a feedback algorithm to maintain the outlet temperature of the air compressor 2 acquired by the first temperature sensor 3 in a safe working range.
Because the radiator fan is the actuator which has the largest influence on the temperature in the cooling device of the whole air supply system, the rotating speed of the radiator fan can obviously influence the air temperature, and meanwhile, the outlet temperature of the intercooler is the most important control variable which determines whether the air temperature entering the electric pile meets the requirements of the electric pile. Therefore, the radiator fan is controlled in accordance with the intercooler outlet temperature. The temperature of the air compressor is not strictly controlled, and only the air compressor is required to work within 140 ℃, so that the temperature range of the air compressor is only required to be roughly controlled by using a cooling water pump.
In this embodiment, the preset value is located in a preset temperature interval, for example, a midpoint of the preset temperature interval.
In one embodiment, the feedback algorithm is a PID algorithm.
Finally, through simulation and experimental analysis, the flow distribution of the two branches cannot obviously affect the heat dissipation capacity of the two branches, and meanwhile, as the control target of the intercooler outlet air temperature is usually between 60 ℃ and 80 ℃ (different from different galvanic piles), at this time, the intercooler coolant outlet temperature is also in the range, and the cooling of the air compressor only needs to keep the working temperature of the air compressor to be lower than 140 ℃. According to the simulation result, the cooling liquid between 60 ℃ and 80 ℃ is enough to cool the air compressor, so the scheme of the series structure can also meet the design requirement of the cooling device.
Claims (10)
1. The air supply cooling system for the hydrogen fuel cell comprises an intercooler (4), wherein the input end of a heat release pipeline of the intercooler (4) is connected to the output end of an air compressor (2), and the output end of the heat release pipeline is connected to a galvanic pile; the system is characterized by further comprising a fan type radiator (8), a cooling water pump (9), a first temperature sensor (3), a second temperature sensor (5) and a main controller, wherein the first temperature sensor (3) is arranged between the air compressor (2) and the intercooler (4), the second temperature sensor (5) is arranged at the output end of a heat release pipeline of the intercooler (4), the input end of the fan type radiator (8) is connected to a cooling liquid outlet of the air compressor (2), the output end of the fan type radiator is connected to the cooling water pump (9), the output end of the cooling water pump (9) is connected to the input end of a heat absorption pipeline of the intercooler (4), the output end of the heat absorption pipeline of the intercooler (4) is connected to a cooling liquid inlet of the air compressor controller (6), the cooling liquid outlet of the air compressor controller (6) is connected to the cooling liquid inlet of the air compressor (2), the main controller is respectively connected with the first temperature sensor (3), the second temperature sensor (5), the fan type radiator (8) and the cooling water pump (9).
2. A hydrogen fuel cell air supply cooling system according to claim 1, characterized in that the system further comprises a cooling water tank (7), the cooling water tank (7) being connected to a line between the fan radiator (8) and the cooling water pump (9).
3. A hydrogen fuel cell air supply cooling system according to claim 1, characterized in that an air cleaner (1) is provided at an input end of the air compressor (2).
4. A hydrogen fuel cell air supply cooling system according to claim 1, characterized in that a particulate filter (8) is provided between the fan radiator (8) and the cooling water pump (9).
5. A hydrogen fuel cell air supply cooling system according to claim 4, characterized in that the system further comprises a cooling water tank (7), the cooling water tank (7) being connected to the line between the particle filter (8) and the cooling water pump (9).
6. A hydrogen fuel cell air supply cooling system according to claim 1, characterized in that said first temperature sensor (3) is provided at the output of the air compressor (2).
7. A hydrogen fuel cell air supply cooling system according to claim 1, characterized in that said first temperature sensor (3) and said second temperature sensor (5) are both gas temperature sensors.
8. A hydrogen fuel cell air supply cooling system as claimed in claim 1, wherein the main controller is configured to perform the steps of:
when air supply needs to be started, a cooling water pump (9) is started, the intercooler outlet temperature collected by the second temperature sensor (5) is received, and the fan type radiator (8) is started until the intercooler output temperature reaches a preset value;
controlling the rotating speed of the fan type radiator (8) according to a feedback algorithm to maintain the outlet temperature of the intercooler within a preset temperature range;
and controlling the rotating speed of the cooling water pump (9) according to a feedback algorithm to maintain the outlet temperature of the air compressor (2) acquired by the first temperature sensor (3) in a safe working range.
9. A hydrogen fuel cell air supply cooling system according to claim 8, characterized in that said preset value is within a preset temperature interval.
10. A hydrogen fuel cell air supply cooling system as claimed in claim 8, characterized in that said feedback algorithm is a PID algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011326051.5A CN112397744A (en) | 2020-11-24 | 2020-11-24 | Air supply cooling system of hydrogen fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011326051.5A CN112397744A (en) | 2020-11-24 | 2020-11-24 | Air supply cooling system of hydrogen fuel cell |
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| CN112397744A true CN112397744A (en) | 2021-02-23 |
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| CN202011326051.5A Pending CN112397744A (en) | 2020-11-24 | 2020-11-24 | Air supply cooling system of hydrogen fuel cell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023999A (en) * | 2021-10-14 | 2022-02-08 | 同济大学 | Fuel cell system with quick cold start function and start method thereof |
| CN114122451A (en) * | 2021-11-22 | 2022-03-01 | 重庆地大工业技术研究院有限公司 | Fuel cell integrated whole vehicle heat management integrated system and control method |
| CN115513489A (en) * | 2022-09-14 | 2022-12-23 | 武汉雄韬氢雄燃料电池科技有限公司 | Simulation method for fuel cell heat dissipation subsystem |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023999A (en) * | 2021-10-14 | 2022-02-08 | 同济大学 | Fuel cell system with quick cold start function and start method thereof |
| CN114023999B (en) * | 2021-10-14 | 2023-08-29 | 同济大学 | Fuel cell system with rapid cold start function and start method thereof |
| CN114122451A (en) * | 2021-11-22 | 2022-03-01 | 重庆地大工业技术研究院有限公司 | Fuel cell integrated whole vehicle heat management integrated system and control method |
| CN114122451B (en) * | 2021-11-22 | 2023-11-14 | 重庆地大工业技术研究院有限公司 | Integrated system and control method for integrated whole vehicle thermal management of fuel cell |
| CN115513489A (en) * | 2022-09-14 | 2022-12-23 | 武汉雄韬氢雄燃料电池科技有限公司 | Simulation method for fuel cell heat dissipation subsystem |
| CN115513489B (en) * | 2022-09-14 | 2023-07-25 | 武汉雄韬氢雄燃料电池科技有限公司 | Fuel cell heat dissipation subsystem simulation method |
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