CN112510228A - Device and method for rapidly increasing air inlet temperature of cathode and anode of fuel cell - Google Patents
Device and method for rapidly increasing air inlet temperature of cathode and anode of fuel cell Download PDFInfo
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- CN112510228A CN112510228A CN202110152789.2A CN202110152789A CN112510228A CN 112510228 A CN112510228 A CN 112510228A CN 202110152789 A CN202110152789 A CN 202110152789A CN 112510228 A CN112510228 A CN 112510228A
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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
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04126—Humidifying
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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
- H01M8/04708—Temperature of fuel cell 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
- H01M8/04298—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
- H01M8/04828—Humidity; Water content
- H01M8/04835—Humidity; Water content of fuel cell reactants
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- 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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Abstract
The invention discloses a device and a method for rapidly increasing the air inlet temperature of a cathode and an anode of a fuel cell, wherein the device comprises an air inlet and outlet system and a hydrogen inlet and outlet system, the air inlet and outlet system adopts a multi-way valve and temperature, pressure and humidity sensors of all branches for detection and accurate control, air with proper temperature after being boosted enters a galvanic pile through a multi-way bypass by utilizing the self-boosting acting of an air compressor, the air inlet temperature of the cathode is increased, no external auxiliary equipment redundancy exists, no excessive cost investment exists, and the vehicle-mounted operation is convenient. The hydrogen inlet and outlet system adopts a cooling loop to realize the temperature raising treatment of the anode hydrogen by the heat exchange system through hydrothermal circulation. Meanwhile, the temperature of cathode air is raised, ice crystals of a diffusion layer are melted most directly, the requirement of electrochemical reaction is met, heat conduction is not relied on in the true sense, the problem of low-temperature starting of a core component galvanic pile of a fuel cell engine can be solved most simply and completely, and the low-temperature starting time is shortened. And a low temperature mode can still be adopted at a conventional temperature.
Description
Technical Field
The invention relates to the technical field of low-temperature starting of new energy hydrogen fuel cell engines, in particular to a device and a method for rapidly increasing the air inlet temperature of cathodes and anodes of fuel cells.
Background
The fuel cell is an energy conversion device, and the hydrogen and the oxygen inside the fuel cell complete chemical reaction discharge under the catalysis effect, so that energy conversion is realized. The advantage of this is that the only product after the reaction is water, and is therefore known as the ultimate energy source of the twenty-first century. Because the fuel cell is regarded as a main energy source for replacing fossil energy, the fuel cell is mainly applied to the field of new energy automobiles at present and is called as a hydrogen fuel cell engine. At present, the technology of a hydrogen fuel cell engine is gradually mature, the stability is well developed, and the hydrogen fuel cell engine is highly concerned in the field of public transportation, but the hydrogen fuel cell engine also gradually highlights short plates with environmental adaptability, such as the starting performance and the running reliability of the hydrogen fuel cell engine under the condition of low temperature. After the chemical reaction of the fuel cell, the inside of the cell generates large continuous pure water, and the diffusion level flow channel of the membrane electrode has very fine pore channels, so that the fuel cell is very easy to be frozen and cannot be started under the condition of low temperature, and further the fuel cell cannot provide power output for the whole vehicle, and the vehicle cannot stably and reliably run.
In the specification of the chinese patent No. cn201210228053.x, "an air reflux heating system for low-temperature start of fuel cell and method thereof," it is disclosed that the exhaust air from the tail of the fuel cell is refluxed to heat the intake air, thereby improving the low-temperature start temperature and enabling the fuel cell to start at a lower temperature. But the temperature of the tail exhaust gas is seriously lost due to backflow heat, so that the requirement of quick low-temperature starting of a fuel cell engine cannot be met; chinese patent CN201110379850.3, a thermal management system for low-temperature start of fuel cell power generation system and method thereof, discloses a method of adding PTC external auxiliary heating to internal circulating water to raise the temperature of coolant, and raising the temperature of membrane electrode and around the plate by asking for the question of plate heat transfer, so as to improve the icing state inside the pile and raise the low-temperature start capability of the engine. Although the external PTC can realize low-temperature starting, the cathode and anode gases are not heated in an auxiliary way, the temperature alternation is very severe after entering the inside of the galvanic pile, and the starting stability of the galvanic pile is not good; in the specification of the chinese patent No. cn201210539730.x "a proton exchange membrane fuel cell system with a rapid start at-20 deg.c", a method of heating the air intake temperature by an external power supply by using an air intake and an auxiliary heating device is disclosed, which reduces the air heat loss, improves the low-temperature start time, and improves the low-temperature start performance of the fuel cell. The system adopts an external auxiliary heating method by utilizing air, more gas auxiliary heating devices are added, the redundancy of system parts is serious, and the low-temperature starting industrialization application under the vehicle-mounted condition cannot be realized; in the specification of CN201820653353.5, "a fuel cell low-temperature start control device", it is disclosed that an external fuel combustion heating and cooling circulation system is adopted to improve the low-temperature start capability of the fuel cell and realize the quick start under the low-temperature condition. The device utilizes external equipment, fuel waste is serious, auxiliary system components are excessive, and industrialization is limited; in the specification of chinese patent CN200910012179.1 "a proton exchange membrane fuel cell low-temperature start-up system and start-up method", a heat storage device is disclosed, which collects waste heat generated during the operation of the fuel cell for effective storage, and releases the stored heat at low temperature without an external heating method, thereby realizing the low-temperature start-up of the fuel cell. However, the collection and storage of waste heat have technical difficulties, and the storage capacity is also severely limited, so that the full recovery and full utilization of the capacity in the true sense cannot be realized.
Disclosure of Invention
The invention carries out design and experimental test verification aiming at the problems, provides a device and a method for rapidly increasing the air inlet temperature of the cathode and the anode of the fuel cell, and is favorable for thoroughly solving the problem of low-temperature starting of the fuel cell.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for rapidly increasing the air inlet temperature of the cathode and the anode of a fuel cell comprises an air inlet and outlet system and a hydrogen inlet and outlet system;
the air inlet and outlet system comprises an air compressor, an intercooler and a humidifier which are sequentially communicated through pipelines, the humidifier is connected with the fuel cell stack through a multiway valve, the multiway valve is respectively communicated with each connecting pipeline, temperature, pressure and humidity sensors are arranged on each connecting pipeline, and the air compressor and the intercooler are respectively connected with a cooling loop;
the hydrogen advances exhaust system includes the high low pressure hydrogen control valve subassembly of admitting air that communicates in proper order through the pipeline, hydrogen heat exchange assembly, hydrogen buffering subassembly and the air inlet intercommunication of fuel cell galvanic pile, the gas outlet and the gas-water separation hydrogen discharge valve subassembly intercommunication of fuel cell galvanic pile, the gas outlet and the hydrogen buffering subassembly intercommunication of gas-water separation hydrogen discharge valve subassembly, all be provided with the temperature on each connecting tube, pressure sensor, hydrogen heat exchange assembly, hydrogen buffering subassembly and gas-water separation hydrogen discharge valve subassembly are connected with a cooling circuit respectively.
Preferably, the air intake and exhaust system further comprises an air intake rainproof pipeline, an air intake filter and a pre-pressure noise reduction device which are sequentially communicated, and the pre-pressure noise reduction device is communicated with an air inlet of the air compressor.
Preferably, the air inlet and outlet system further comprises a post-compression silencer communicated with an air outlet of the air compressor; the back pressure electromagnetic valve is communicated with the tail gas outlet of the humidifier; and the tail exhaust silencer is communicated with the air outlet of the backpressure electromagnetic valve.
Preferably, the water inlets of the hydrogen heat exchange assembly, the hydrogen buffer assembly and the gas-water separation hydrogen discharge valve assembly are respectively provided with a PTC heating assembly.
Preferably, the cooling circuit comprises a water tank, a water pump, a filter assembly, a temperature control valve assembly and an ion concentration monitoring assembly, one end of the water pump is communicated with the water tank, the other end of the water pump is sequentially communicated with the temperature control valve assembly, the filter assembly and the ion concentration monitoring assembly, and a water outlet of the ion concentration monitoring assembly is respectively communicated with the device to be cooled and the water tank.
A method for rapidly increasing the inlet air temperature of the cathode and the anode of a fuel cell comprises the following steps:
when a sensor at the front end of the intercooler detects that the ambient temperature is lower than the normal starting temperature TO1 of the fuel cell engine, closing a multi-way valve between the air compressor and the intercooler, simultaneously increasing the rotating speed of the air compressor, and carrying out backpressure on the air compressor;
when the air temperature inside the air compressor reaches the stack inlet temperature T02, the bypass directly enters the electric stack;
when the temperature of the air inside the air compressor is higher than the stack entering temperature T02, opening a multi-way valve between the air compressor and the intercooler, and adjusting the opening proportion of each multi-way valve to enable the air to enter the intercooler for cooling and enter the humidifier for humidifying;
when a sensor at the front end of the humidifier detects that the temperature, the pressure and the humidity meet the requirement of entering the stack, air enters the electric stack through the intercooler.
As the optimization of above-mentioned scheme, during the air compressor machine backpressure, the inside back turbine that carries out the pressure boost of air compressor machine will do work to the airtight intracavity gas of air compressor machine, realizes the rapid temperature rise of the inside air of air compressor machine.
Preferably, the method further comprises: before the hydrogen enters the galvanic pile, the temperature raising treatment is realized by a cooling loop through hydrothermal circulation.
Due to the structure, the invention has the advantages that:
the device and the method can solve the problem of low-temperature starting of the core component of the fuel cell engine. Meanwhile, the temperature of the cathode air is increased, so that the ice crystals of the diffusion layer are most directly melted, and the requirement of electrochemical reaction is met. The air with proper temperature after being boosted enters the electric pile through the multi-channel bypass by utilizing the self-pressurization work of the air compressor, the cathode air inlet temperature is improved, no external auxiliary equipment redundancy exists, no excessive cost investment exists, and the vehicle-mounted operation is facilitated. Through the auxiliary water circulation and the heat exchange circulation of the cathode and the anode, the problem of no heat conduction is really realized, the problem in the low-temperature starting process can be completely solved, and the low-temperature starting time is shortened. Meanwhile, under the conventional temperature, in order to enable the engine to enter a normal running state more quickly, a low-temperature mode can still be adopted, the overall temperature of the engine is quickly increased, further quick loading can be realized, quick starting is realized, and a solid technical foundation is established for shortening the response time of the system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic view of an air intake and exhaust system according to the present invention;
FIG. 2 is a schematic structural diagram of a hydrogen gas inlet and outlet system according to the present invention;
FIG. 3 is a schematic diagram of the cooling circuit of the present invention;
figure 4 is a schematic diagram of the heat exchange principle of the bipolar plate.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to fig. 3, the present embodiment provides a device for rapidly increasing the inlet air temperature of the cathode and the anode of a fuel cell, which includes an air inlet and outlet system, a hydrogen inlet and outlet system, a low temperature auxiliary heating system and a corresponding electrical control system.
The air intake and exhaust system comprises an air compressor, an intercooler and a humidifier which are sequentially communicated through pipelines, the humidifier is connected with the fuel cell stack through a multiway valve, the multiway valves (M1, M2 and M3) are respectively communicated with the connecting pipelines, temperature sensors (T1, T2 and T3), pressure sensors (P1, P2 and P3) and humidity sensors (RH 1, RH2 and RH 3) are arranged on the connecting pipelines, and the air compressor and the intercooler are respectively connected with a cooling loop (cooling loop 1 and cooling loop 2);
the hydrogen advances exhaust system includes the high low pressure hydrogen control valve subassembly of admitting air that communicates in proper order through the pipeline, hydrogen heat exchange assembly, hydrogen buffering subassembly and the air inlet intercommunication of fuel cell galvanic pile, the gas outlet and the gas-water separation hydrogen discharge valve subassembly intercommunication of fuel cell galvanic pile, the gas outlet and the hydrogen buffering subassembly intercommunication of gas-water separation hydrogen discharge valve subassembly, all be provided with temperature sensor (TH 1 on each connecting tube, TH 2), pressure sensor (PH 1, PH 2), hydrogen heat exchange assembly, hydrogen buffering subassembly and gas-water separation hydrogen discharge valve subassembly are connected with a cooling circuit (cooling circuit 3, cooling circuit 4, cooling circuit 5) respectively.
In this embodiment, the air inlet and outlet system further comprises an air inlet rainproof pipeline, an air inlet filter and a pre-pressure silencing device which are sequentially communicated, wherein the pre-pressure silencing device is communicated with an air inlet of the air compressor.
In this embodiment, the air intake and exhaust system further includes a post-compression silencer, which is communicated with the air outlet of the air compressor; the back pressure electromagnetic valve is communicated with the tail gas outlet of the humidifier; and the tail exhaust silencer is communicated with the air outlet of the backpressure electromagnetic valve.
In this embodiment, the water inlet of hydrogen heat exchange assembly, hydrogen buffering subassembly and gas-water separation hydrogen discharge valve subassembly all is provided with PTC heating element.
In this embodiment, cooling circuit includes water tank, water pump, filter assembly, temperature-sensing valve subassembly and ion concentration monitoring subassembly, water pump one end and water tank intercommunication, the other end communicate temperature-sensing valve subassembly, filter assembly, ion concentration monitoring subassembly in proper order, ion concentration monitoring subassembly delivery port respectively with treat cooling device and water tank intercommunication.
The embodiment also discloses a method for rapidly increasing the inlet air temperature of the cathode and the anode of the fuel cell, which comprises the following steps:
when the fuel cell is in a low-temperature environment and a sensor T1/P1/RH1 at the front end of the intercooler detects that the environment temperature is lower than the normal starting temperature TO1 of an engine of the fuel cell, the control mode is switched TO a low-temperature starting control strategy TO perform low-temperature starting control on an air path, a multi-way valve M1 between the air compressor and the intercooler is correspondingly closed, meanwhile, the rotating speed of the air compressor is increased, the air compressor is subjected TO back pressure, a turbine applies work TO the air in a sealed cavity of the air compressor after the inside of the air compressor is pressurized, and rapid temperature rise of the air inside the air.
The temperature rise state is determined through the temperature detection sensor T1/P1/RH1, when the temperature of the air inside the air compressor reaches the stack entering temperature T02, the bypass directly enters the electric stack, and the pressurized high-temperature air is introduced into the fuel cell engine, so that the hot air of the cathode flow field membrane electrode is swept to raise the temperature of the cathode. The operation method can most directly heat the diffusion layer of the electrode in the galvanic pile, melt ice crystals which influence mass transfer in the diffusion layer and meet the low-temperature starting condition of the fuel cell galvanic pile.
When T1/P1/RH1 detects that the temperature of the air inside the air compressor is higher than the temperature T02 of entering the stack, because the high-temperature air can cause the irreversible damage condition to the fuel cell and the auxiliary components, therefore, the second multi-way valve M2 is adopted for control, the multi-way valve M1 between the air compressor and the intercooler is opened, the opening proportion of each multi-way valve (M1, M2 and M3) is adjusted, the accurate control of the temperature of the gas entering the humidifier is realized, the heat exchange cooling of the high-temperature compressed air through the intercooler is further realized, and the humidity adjustment is realized through the humidifier. The multi-way valve M2 is mainly used for humidifying and cooling the air after pressurization and body temperature, and finally, the problem of entering the galvanic pile can meet the temperature and pressure requirements.
When the sensor T2/P2/RH2 at the front end of the humidifier detects that the temperature, the pressure and the humidity meet the requirements of stacking, air enters the electric stack through the intercooler, and finally quick low-temperature starting is achieved.
Meanwhile, in order to further provide hydrogen backflow and ensure that the temperature of hydrogen gas inlet can be raised at an anode flow field catalyst layer and a diffusion layer of the electric pile, a heat exchange system is used for raising the temperature of anode hydrogen by the aid of a cooling loop through hydrothermal circulation before the hydrogen enters the electric pile, the temperature of the diffusion layer can be rapidly raised at the anode by the aid of the hydrogen entering the electric pile, low-temperature rapid starting is further achieved, and the fuel cell enters an idling state.
The main technical route content of the invention is summarized as the following three aspects:
(1) on the basis of being matched with a conventional vehicle-mounted PTC (low-temperature cold start heating device), auxiliary heat exchange is respectively carried out on a cathode and an anode through a heat displacement device, auxiliary heat exchange heat is reasonably controlled, and the temperature and humidity related to cathode and anode gases entering a pile are controlled through energy exchange, so that the pile and electrodes of the core component of the engine are preheated to a certain degree;
(2) under the condition of low-temperature starting, the outlet backpressure of the air compressor is improved through the air compressor, the air compressor does work internally, the temperature of gas inside the air compressor is instantly improved, the gas enters the electric pile through a pile entering bypass, a crossing air cooling device and a humidifying device after an acceptable proper interval, the high-temperature air is directly adopted to sweep the membrane electrode, ice crystals of a gas diffusion layer inside the electrode are melted, and the temperature suitable for chemical reaction is improved;
(3) the low-temperature auxiliary heating system adopts multi-way valve control to realize a multi-way and quick heating control mode of auxiliary heating covering cathode and anode inlet air temperature heating and small cooling liquid circulation at low temperature;
through the technical route, the problems encountered by the low-temperature start of the core component of the fuel cell engine in the galvanic pile can be solved most simply. Meanwhile, the temperature of the cathode air is increased, so that the ice crystals of the diffusion layer are most directly melted, and the requirement of electrochemical reaction is met. The air with proper temperature after being boosted enters the electric pile through the multi-channel bypass by utilizing the self-pressurization work of the air compressor, so that no external auxiliary equipment redundancy exists, no excessive cost investment exists, and the vehicle-mounted operation is facilitated. Secondly, the problem of low-temperature starting can be completely solved by realizing no heat conduction in the true sense through auxiliary water circulation and heat exchange circulation of the cathode and the anode, and the low-temperature starting time is shortened (such as a simple bipolar plate heat circulation diagram shown in figure 4). Meanwhile, under the conventional temperature, in order to enable the engine to enter a normal running state more quickly, a low-temperature mode can still be adopted, the overall temperature of the engine is quickly increased, and further quick loading can be realized to realize quick starting.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a promote device of fuel cell negative and positive pole inlet air temperature fast which characterized in that: comprises an air inlet and outlet system and a hydrogen inlet and outlet system;
the air inlet and outlet system comprises an air compressor, an intercooler and a humidifier which are sequentially communicated through pipelines, the humidifier is connected with the fuel cell stack through a multiway valve, the multiway valve is respectively communicated with each connecting pipeline, temperature, pressure and humidity sensors are arranged on each connecting pipeline, and the air compressor and the intercooler are respectively connected with a cooling loop;
the hydrogen advances exhaust system includes the high low pressure hydrogen control valve subassembly of admitting air that communicates in proper order through the pipeline, hydrogen heat exchange assembly, hydrogen buffering subassembly and the air inlet intercommunication of fuel cell galvanic pile, the gas outlet and the gas-water separation hydrogen discharge valve subassembly intercommunication of fuel cell galvanic pile, the gas outlet and the hydrogen buffering subassembly intercommunication of gas-water separation hydrogen discharge valve subassembly, all be provided with the temperature on each connecting tube, pressure sensor, hydrogen heat exchange assembly, hydrogen buffering subassembly and gas-water separation hydrogen discharge valve subassembly are connected with a cooling circuit respectively.
2. The apparatus of claim 1, wherein: the air inlet and outlet system also comprises an air inlet rainproof pipeline, an air inlet filter and a pre-pressure silencing device which are sequentially communicated, wherein the pre-pressure silencing device is communicated with an air inlet of the air compressor.
3. The apparatus of claim 1, wherein: the air inlet and outlet system also comprises a post-compression silencing device which is communicated with an air outlet of the air compressor; the back pressure electromagnetic valve is communicated with the tail gas outlet of the humidifier; and the tail exhaust silencer is communicated with the air outlet of the backpressure electromagnetic valve.
4. The apparatus of claim 1, wherein: PTC heating components are arranged at the water inlets of the hydrogen heat exchange component, the hydrogen buffering component and the gas-water separation hydrogen discharge valve component.
5. The apparatus of claim 1, wherein: the cooling circuit comprises a water tank, a water pump, a filter assembly, a temperature control valve assembly and an ion concentration monitoring assembly, one end of the water pump is communicated with the water tank, the other end of the water pump is sequentially communicated with the temperature control valve assembly, the filter assembly and the ion concentration monitoring assembly, and a water outlet of the ion concentration monitoring assembly is communicated with the cooling device and the water tank respectively.
6. The method for rapidly increasing the inlet air temperature of the cathode and the anode of the fuel cell as claimed in claim 1, wherein: the method comprises the following steps:
when the sensor at the front end of the intercooler detects that the ambient temperature is lower than the normal starting temperature TO of the fuel cell engine1When the air compressor is started, the multi-way valve between the air compressor and the intercooler is closed, the rotating speed of the air compressor is increased, and the air compressor is subjected to back pressure;
when the internal air temperature of the air compressor reaches the stack entering temperature T02When the fuel is used, the bypass directly enters the electric pile;
when the temperature of the air inside the air compressor is higher than the stack entering temperature T02When the air conditioner is used, the multi-way valve between the air compressor and the intercooler is opened, the opening proportion of each multi-way valve is adjusted, and the air enters the intercooler for cooling and enters the humidifier for humidifying;
when a sensor at the front end of the humidifier detects that the temperature, the pressure and the humidity meet the requirement of entering the stack, air enters the electric stack through the intercooler.
7. The method of claim 6, wherein: when the air compressor is subjected to backpressure, the turbine applies work to the air in the closed cavity of the air compressor after the air compressor is pressurized, and rapid temperature rise of the air in the air compressor is realized.
8. The method of claim 6, wherein: further comprising: before the hydrogen enters the galvanic pile, the temperature raising treatment is realized by a cooling loop through hydrothermal circulation.
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Cited By (7)
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| CN113690471A (en) * | 2021-07-07 | 2021-11-23 | 珠海格力电器股份有限公司 | Marine fuel cell cooling system and control method thereof |
| 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 |
| CN114725443A (en) * | 2022-03-30 | 2022-07-08 | 安徽明天氢能科技股份有限公司 | Air inlet system suitable for low-temperature quick start of fuel cell |
| CN114719558A (en) * | 2022-04-19 | 2022-07-08 | 江苏凌氢新能源科技有限公司 | Hydrogen cooling and cooling integrated unit and control method |
| CN115149045A (en) * | 2022-09-05 | 2022-10-04 | 北京英博新能源有限公司 | Fuel cell engine cold start system and method |
| CN116646555A (en) * | 2023-07-18 | 2023-08-25 | 深圳市氢蓝时代动力科技有限公司 | Fuel cell system, start control method, and storage medium |
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Denomination of invention: A device and method for increasing the inlet temperature of the cathode and anode of a fuel cell Effective date of registration: 20230515 Granted publication date: 20210427 Pledgee: Shenzhen hi tech investment small loan Co.,Ltd. Pledgor: WUHAN XIONGTAO HYDROGEN FUEL CELL TECHNOLOGY Co.,Ltd. Registration number: Y2023980040457 |