WO2021114311A1 - Heat-balance "gas-gas-liquid" three-phase heat exchange system for fuel cell - Google Patents

Heat-balance "gas-gas-liquid" three-phase heat exchange system for fuel cell Download PDF

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Publication number
WO2021114311A1
WO2021114311A1 PCT/CN2019/125439 CN2019125439W WO2021114311A1 WO 2021114311 A1 WO2021114311 A1 WO 2021114311A1 CN 2019125439 W CN2019125439 W CN 2019125439W WO 2021114311 A1 WO2021114311 A1 WO 2021114311A1
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Prior art keywords
fuel cell
heat exchange
gas
temperature
hydrogen
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PCT/CN2019/125439
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French (fr)
Chinese (zh)
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陈强
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浙江氢谷新能源汽车有限公司
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Publication of WO2021114311A1 publication Critical patent/WO2021114311A1/en

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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
    • 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
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—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
    • 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
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • 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

Definitions

  • the invention relates to the field of fuel cells, in particular to a fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system.
  • the principle of a fuel cell is an electrochemical device whose composition is the same as that of a general battery, which converts chemical energy into electrical energy.
  • the fuel and oxidant are supplied from the outside, and the main raw materials are hydrogen and air.
  • the oxygen required by the battery comes from air, and the air needs to be filtered and compressed before it can enter the fuel cell stack.
  • the temperature of the compressed air at the outlet of the air compressor is higher than the working temperature range of the fuel cell stack, and the compressed air of the fuel cell stack needs to be resolved. Into the stack temperature.
  • high-pressure gaseous hydrogen storage is currently the most widely used hydrogen storage method.
  • the hydrogen can enter the fuel cell stack after multi-stage decompression.
  • the temperature of the hydrogen entering the fuel cell stack is lower than the temperature of the air entering the fuel cell stack, causing the gradient temperature difference of the fuel cell stack and the gradient temperature difference between the two sides of the membrane electrode.
  • the membrane electrode is prone to accelerated aging and damage under the working condition of the gradient temperature difference for a long time. on site.
  • the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes.
  • the change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell.
  • the output power of the fuel cell system is getting higher and higher, and the fuel cell stack consumes more and more raw materials.
  • the air needs to be compressed under the condition that the piping system and the stack fluid channel diameter remain unchanged. After the air is compressed, because its temperature is higher than the optimal working temperature of the fuel cell, the compressed air needs to be cooled. In order to avoid the above-mentioned defects, the temperature of the hydrogen and compressed air entering the fuel cell stack needs to be equalized. It is also necessary to process the fluid entering the fuel cell stack to make the fuel cell stack reach a suitable and stable working temperature environment.
  • the purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system.
  • a fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system including a fuel cell stack, air pipes, hydrogen pipes, deionized water pipes, which It is characterized in that: said hydrogen pipeline, air pipeline and deionized water pipeline are provided with heat exchange devices.
  • air needs to be compressed before entering the fuel cell stack.
  • the compressed air temperature is higher than the working temperature range of the fuel cell stack and needs to be cooled before entering the fuel cell stack; high-pressure liquid hydrogen requires multiple stages of decompression
  • the temperature of the hydrogen after decompression is lower than the working temperature range of the fuel cell stack, and the temperature needs to be raised before entering the fuel cell stack; compression, decompression, and adjustment of the gas temperature require the work of the device to generate heat; deionized water Used to adjust the temperature of the fuel cell stack.
  • the fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system is equipped with heat exchange devices on air pipes, hydrogen pipes and deionized water pipes. The heat of water and high-temperature air drives low-temperature hydrogen to reduce the waste of heat energy. Overall thermal cycle.
  • the heat exchange device is provided with a temperature compensation heater.
  • a temperature compensation heater In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the heat exchange device is provided with a temperature compensation heater.
  • the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes.
  • the change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell.
  • the gas entering the fuel cell stack needs to be processed to make the fuel cell stack reach a stable operating temperature environment.
  • the heat energy of the high-temperature compressed air is transferred to hydrogen and water through the heat exchange device.
  • the temperature compensation heater in the heat exchange device can be started when the fuel cell device is cold-started.
  • the heat exchange device is provided with fins in close contact with the hydrogen pipeline, the oxygen pipeline and the deionized water.
  • the fin plays an important role in balancing the temperature of high-temperature compressed air, low-temperature hydrogen and deionized water.
  • the hydrogen pipe and air pipe penetrate the fin and are in close contact with the deionized water.
  • the three gas pipes are installed horizontally.
  • the hydrogen pipe is provided with a hydrogen pipe temperature sensor on the back pipe of the heat exchange device, and a solenoid valve for controlling the on-off of the fluid is provided at the front portion of the hydrogen pipe. .
  • the heat exchange effect in the heat exchange device is adjusted by the temperature fed back by the hydrogen pipe temperature sensor to adjust the hydrogen temperature after the heat exchange.
  • the air pipe is equipped with an air pipe temperature sensor on the back pipe of the heat exchange device, and the front portion is equipped with a solenoid valve for controlling the flow of fluid. .
  • the heat exchange effect in the heat exchange device is adjusted by the temperature fed back by the air pipe temperature sensor to adjust the air temperature after heat exchange.
  • the deionized water pipeline is provided with a heat exchange device temperature sensor in the heat exchange device, and the front section is provided with a solenoid valve for controlling the on and off of the fluid.
  • the front end of the solenoid valve is provided with a fuel cell stack heat dissipation system, and the fuel cell stack heat dissipation system is provided with a fuel cell stack heat dissipation system temperature sensor.
  • Deionized water passes through the fuel cell stack after heat exchange, and then flows into the heat dissipation system of the fuel cell stack.
  • the heat exchange device includes a sealed container body, a sealed end cover, and a sealing gasket for cooperating with the end cover for sealing.
  • the sealing gasket and the sealing end cover form a sealed whole with the sealed container body to reduce the loss of internal heat energy.
  • the sealed container body is provided with openings for installing and fixed hydrogen pipes and air pipes, and the tank body is provided with direct openings.
  • the water inlet and outlet of the deionized water are also provided with a temperature compensator port for installing a temperature compensation heater on the tank body.
  • the deionized water flows directly into and fills the tank body, and can fully contact the fins, hydrogen pipes and air pipes.
  • the temperature compensator port is set under the openings of the air pipes and hydrogen pipes, because when heating is needed, the heat will be dissipated upwards, reducing waste.
  • the temperature compensation heater is U-shaped electric heating rods evenly and densely distributed under the fins.
  • external heating is used to reduce the damage to the device and the system due to low temperature.
  • the exchange system includes receiving and processing the signals of various temperature sensors to temperature-compensate the heater to adjust the hydrogen pipeline, air pipeline, deionization pipeline and fuel
  • the central processing unit of the battery stack temperature centrally processes and coordinates the global temperature
  • the temperature sensor transmits the temperature signal to the central processing unit
  • the central processing unit controls the temperature heating compensator and the fuel cell heat dissipation system to coordinate the temperature after processing the signal.
  • the fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system thermally circulates most of the heat in the overall structure, reduces unnecessary heat supply, and can ensure the low temperature environment. Work, energy saving and environmental protection.
  • Figure 1 is a schematic flow diagram of the present invention
  • Fig. 2 is a schematic diagram of the structure of the heat exchange device of the present invention.
  • the fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system includes a fuel cell stack, air pipe 1, hydrogen pipe 2, deionized water pipe 3, hydrogen pipe 2, air pipe 1, and
  • the deionized water pipeline 3 is provided with a heat exchange device 4.
  • the air needs to be compressed before it can enter the fuel cell stack.
  • the compressed air temperature is higher than the fuel cell stack's operating temperature range and needs to be cooled before entering the fuel cell stack; high-pressure liquid hydrogen needs to be decompressed in multiple stages before it can enter the fuel cell Stack, the temperature of the decompressed hydrogen is lower than the working temperature range of the fuel cell stack, and it needs to be heated before entering the fuel cell stack; compression, decompression, and adjustment of the gas temperature require equipment to work and generate heat; deionized water is used to regulate the fuel cell The temperature of the pile.
  • the fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system is equipped with a heat exchange device 4 on the air pipe 1, hydrogen pipe 2 and deionized water pipe 3. The heat of water and high-temperature air drives low-temperature hydrogen to reduce thermal energy. Waste, the overall thermal cycle of the system.
  • the above-mentioned heat exchange device 4 is provided with a temperature compensation heater 5.
  • a temperature compensation heater 5 In the case of fuel cells without special treatment or auxiliary tools, in a working environment below 0°C, the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes. The change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell.
  • the gas entering the fuel cell stack needs to be processed to make the fuel cell stack reach a stable operating temperature environment.
  • the heat energy of the high-temperature compressed air is transferred to hydrogen and water through the heat exchange device 4.
  • the temperature compensation heater 5 in the heat exchange device 4 can be started when the fuel cell system is cold-started.
  • the above-mentioned heat exchange device 4 is provided with fins 6 in close contact with the hydrogen pipe 2, the oxygen pipe 3 and the deionized water.
  • the fin 6 plays an important role in balancing the temperatures of high-temperature compressed air, low-temperature hydrogen and deionized water.
  • the hydrogen pipe 2 and the air pipe 1 penetrate the fin 6, and the pipes are installed horizontally.
  • the above-mentioned hydrogen pipeline 2 is provided with a hydrogen pipe temperature sensor 7 on the back pipe of the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided at the front portion.
  • the heat exchange effect in the heat exchange device 4 is adjusted by the temperature fed back by the hydrogen pipe temperature sensor 7 to adjust the hydrogen temperature after heat exchange.
  • the air pipe 3 is provided with an air pipe temperature sensor 9 on the rear pipe of the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided at the front portion.
  • the heat exchange effect in the heat exchange device 4 is adjusted by the temperature fed back by the air pipe temperature sensor 9 to adjust the air temperature after heat exchange. Control and adjust the ratio of hydrogen to air to achieve the best effect of high-temperature compressed air heating low-temperature hydrogen.
  • the above-mentioned deionized water pipeline 3 is provided with a heat exchange device temperature sensor 10 in the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided in the front section.
  • the front end of the solenoid valve 8 is provided with a fuel cell stack heat dissipation system 11.
  • the fuel cell stack heat dissipation system 11 is provided with a fuel cell stack heat dissipation system temperature sensor 12.
  • the heat exchange device 4 includes a sealed container body 41, a sealed end cover 42 and a sealing gasket 43 that cooperates with the end cover for sealing.
  • the tank body 41 of the sealed container is provided with an opening 411 for installing and fixing the hydrogen pipe 2 and the air pipe 1, and the tank body is provided with a water inlet 412 and a water outlet 413 that directly flow into the deionized water.
  • the tank body is also provided with a temperature compensation heater port 414 on which the temperature compensation heater 5 is installed.
  • the gasket 43, the sealing end cap 42 and the sealed container tank 41 form a sealed whole to reduce the loss of internal heat energy.
  • the deionized water directly flows into and fills the tank body, and can fully contact the fin 6, the hydrogen pipe 2 and the air pipe 1.
  • the temperature compensation heater port 414 is located below the opening 411 of the air pipe 1 and the hydrogen pipe 2.
  • the temperature compensation heater 5 is a U-shaped electric heating rod evenly and densely distributed under the fins. When the overall system heat energy is insufficient, the external Heat supply to reduce the damage of low temperature to the device and system.
  • the exchange system includes a central processing unit 13 which receives and processes the signals of various temperature sensors to adjust the temperature of the hydrogen pipeline 2, the air pipeline 1, the deionization pipeline 3 and the fuel cell stack by the temperature compensation heater.
  • the central processing unit centrally processes and coordinates the global temperature.
  • Each temperature sensor transmits the temperature signal to the central processing unit. After processing the signal, the central processing unit controls the temperature heating compensator and the fuel cell cooling system to coordinate the temperature.
  • the compressed air contains heat energy and dissipates the heat energy to the hydrogen heat exchange tube and deionized water through the fins.
  • the temperature is reduced and the heat energy in the air heat exchange tube and deionized water is absorbed by the fins.
  • the deionized water also passes through the fuel cell stack and the heat dissipation system of the cell stack, absorbs the heat energy, and returns to the heat exchange device to circulate most of the heat energy; when the battery as a whole is in a working environment below 0°C Under the circumstances, the heat energy brought by the compressed air is not enough to support the temperature of the overall structure, and the temperature compensation heater needs to be activated to make the fuel cell work normally.

Abstract

Disclosed is a heat-balance "gas-gas-liquid" three-phase heat exchange system for a fuel cell, comprising a fuel cell stack, an air pipe (1), a hydrogen pipe (2), a deionized water pipe (3), and a heat exchange device (4) provided on the air pipe (1), the hydrogen pipe (2) and the deionized water pipe (3). Air is adapted to the working environment of the fuel cell before entering the fuel cell stack by subjecting the air to compression and then cooling, because compressed air has a temperature higher than the working temperature of the fuel cell stack. High-pressure liquid hydrogen requires multiple stages of decompression before entering the fuel cell stack. Decompressed hydrogen has a temperature lower than the working temperature of the fuel cell stack, and therefore, decompressed hydrogen needs to be heated before entering the fuel cell stack. Heating of the deionized water prevents damage to the fuel cell during a cold start. The heat exchange device (4) is configured to drive the low-temperature hydrogen using the heat from the water and the high-temperature air, adjusting the overall temperature and reducing the waste of heat energy.

Description

在此处键入发明名称一种燃料电池热平衡“气-气-液”三相热交换系统Enter the name of the invention here, a fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system 技术领域Technical field
本发明涉及燃料电池领域，特别是一种燃料电池热平衡“气-气-液”三相热交换系统。The invention relates to the field of fuel cells, in particular to a fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system.
背景技术Background technique
燃料电池原理是一种电化学装置，其组成与一般电池相同，将化学能转化为电能。电池工作时燃料和氧化剂由外部供给，主要原料是氢气和空气。电池所需氧气源自空气，空气需经过滤压缩处理后才可进入燃料电池电堆，目前空气压缩机出口的压缩空气温度高于燃料电池堆的工作温度范围，需要解决燃料电池堆的压缩空气进堆温度。现有技术中高压气态储氢是目前应用最广泛的储氢方式，为避免高压状态下氢气对膜电极的冲击损耗，氢气经多级减压后，才能够进入燃料电池电堆。此时，进入燃料电池堆的氢气温度低于进入燃料电池堆的空气温度，造成燃料电池堆梯度温差及膜电极两侧梯度温差，膜电极长时间处于梯度温差工作条件下易发生加速老化和破损现场。The principle of a fuel cell is an electrochemical device whose composition is the same as that of a general battery, which converts chemical energy into electrical energy. When the battery is working, the fuel and oxidant are supplied from the outside, and the main raw materials are hydrogen and air. The oxygen required by the battery comes from air, and the air needs to be filtered and compressed before it can enter the fuel cell stack. At present, the temperature of the compressed air at the outlet of the air compressor is higher than the working temperature range of the fuel cell stack, and the compressed air of the fuel cell stack needs to be resolved. Into the stack temperature. In the prior art, high-pressure gaseous hydrogen storage is currently the most widely used hydrogen storage method. In order to avoid the impact loss of hydrogen to the membrane electrode under high pressure, the hydrogen can enter the fuel cell stack after multi-stage decompression. At this time, the temperature of the hydrogen entering the fuel cell stack is lower than the temperature of the air entering the fuel cell stack, causing the gradient temperature difference of the fuel cell stack and the gradient temperature difference between the two sides of the membrane electrode. The membrane electrode is prone to accelerated aging and damage under the working condition of the gradient temperature difference for a long time. on site.
燃料电池在无特殊处理或辅助工具的情况中，在低于0℃的工作环境下，阴极侧反应生成的水易结冰导致催化层、扩散层堵塞，阻碍反应的进行，并且水结冰产生的体积变化也会对膜电极组件的结构产生破坏，降低燃料电池性能。In the case of fuel cells without special treatment or auxiliary tools, in a working environment below 0°C, the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes. The change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell.
目前燃料电池系统输出功率越来越高，燃料电池电堆所消耗原料也越来越多，在管路系统及电堆流体通道口径不变的条件下需将空气进行压缩处理。空气被压缩后，又因其温度高于燃料电池最佳工作温度环境，需对压缩空气进行降温处理。为避免上述缺陷，需将进入燃料电池堆的氢气和压缩空气的温度进入均衡处理。还需将进入燃料电池堆的流体进行处理，使燃料电池堆达到合适且稳定的工作温度环境。At present, the output power of the fuel cell system is getting higher and higher, and the fuel cell stack consumes more and more raw materials. The air needs to be compressed under the condition that the piping system and the stack fluid channel diameter remain unchanged. After the air is compressed, because its temperature is higher than the optimal working temperature of the fuel cell, the compressed air needs to be cooled. In order to avoid the above-mentioned defects, the temperature of the hydrogen and compressed air entering the fuel cell stack needs to be equalized. It is also necessary to process the fluid entering the fuel cell stack to make the fuel cell stack reach a suitable and stable working temperature environment.
发明概述Summary of the invention
技术问题technical problem
问题的解决方案The solution to the problem
技术解决方案Technical solutions
本发明的目的是针对现有的技术存在上述问题，提出了一种燃料电池热平衡“气-气-液”三相热交换系统。The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system.
为了实现创新本发明的目的可通过下列技术方案来实现：一种燃料电池热平衡“气-气-液”三相热交换系统，包含燃料电池堆，空气管道，氢气管道，去离子水管道，其特征在于：所述的氢气管道、空气管道和去离子水管道上设有热交换装置。In order to achieve the purpose of innovation, the present invention can be achieved through the following technical solutions: a fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system, including a fuel cell stack, air pipes, hydrogen pipes, deionized water pipes, which It is characterized in that: said hydrogen pipeline, air pipeline and deionized water pipeline are provided with heat exchange devices.
现有技术中，空气需经过压缩处理后才能进入燃料电池堆，压缩后的空气温度高于燃料电池堆的工作温度范围，需在进入燃料电池堆前降温；高压液态的氢气需多级减压后才能进入燃料电池堆，解压后的氢气温度低于燃料电池堆的工作温度范围，需在进入燃料电池堆前升温；压缩、解压、调节气体的温度都需要装置做功会产生热能；去离子水用于调节燃料电池堆的温度。本燃料电池热平衡“气-气-液”三相热交换系统在空气管道、氢气管道和去离子水管道上设热交换装置，用水和高温空气的热量带动低温氢气，减少热能的浪费，系统的整体热循环。In the prior art, air needs to be compressed before entering the fuel cell stack. The compressed air temperature is higher than the working temperature range of the fuel cell stack and needs to be cooled before entering the fuel cell stack; high-pressure liquid hydrogen requires multiple stages of decompression The temperature of the hydrogen after decompression is lower than the working temperature range of the fuel cell stack, and the temperature needs to be raised before entering the fuel cell stack; compression, decompression, and adjustment of the gas temperature require the work of the device to generate heat; deionized water Used to adjust the temperature of the fuel cell stack. The fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system is equipped with heat exchange devices on air pipes, hydrogen pipes and deionized water pipes. The heat of water and high-temperature air drives low-temperature hydrogen to reduce the waste of heat energy. Overall thermal cycle.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的热交换装置中设有温度补偿加热器。燃料电池在无特殊处理或辅助工具的情况中，在低于0℃的工作环境下，阴极侧反应生成的水易结冰导致催化层、扩散层堵塞，阻碍反应的进行，并且水结冰产生的体积变化也会对膜电极组件的结构产生破坏，降低燃料电池性能。为解决该问题，燃料电池冷启动时，需将进入燃料电池电堆的气体进行处理，使燃料电池电堆达到稳定工作温度环境。通过热交换装置将高温压缩空气的热能转移至氢气及水，热量不足时，燃料电池装置冷启动时可以启动热交换装置中的温度补偿加热器。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the heat exchange device is provided with a temperature compensation heater. In the case of fuel cells without special treatment or auxiliary tools, in a working environment below 0°C, the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes. The change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell. To solve this problem, when the fuel cell is cold-started, the gas entering the fuel cell stack needs to be processed to make the fuel cell stack reach a stable operating temperature environment. The heat energy of the high-temperature compressed air is transferred to hydrogen and water through the heat exchange device. When the heat is insufficient, the temperature compensation heater in the heat exchange device can be started when the fuel cell device is cold-started.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的热交换装置中设有与氢气管道、氧气管道和去离子水紧密接触的翅片。翅片在平衡高温压缩空气、低温氢气和去离子水的温度中起重要作用氢气管道和空气管道贯穿翅片 并与去离子水接触紧密，三根气体管道水平安装。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the heat exchange device is provided with fins in close contact with the hydrogen pipeline, the oxygen pipeline and the deionized water. The fin plays an important role in balancing the temperature of high-temperature compressed air, low-temperature hydrogen and deionized water. The hydrogen pipe and air pipe penetrate the fin and are in close contact with the deionized water. The three gas pipes are installed horizontally.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的氢气管道在热交换装置后段管道上设有氢气管温度传感器，前段设有控制流体通断的电磁阀。通过氢气管温度传感器反馈的温度来调节热交换装置中的热交换效果以调节热交换后的氢气温度。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the hydrogen pipe is provided with a hydrogen pipe temperature sensor on the back pipe of the heat exchange device, and a solenoid valve for controlling the on-off of the fluid is provided at the front portion of the hydrogen pipe. . The heat exchange effect in the heat exchange device is adjusted by the temperature fed back by the hydrogen pipe temperature sensor to adjust the hydrogen temperature after the heat exchange.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的空气管道在热交换装置后段管道上设有空气管温度传感器，前段设有控制流体通断的电磁阀。通过空气管温度传感器反馈的温度来调节热交换装置中的热交换效果以调节热交换后的空气温度。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the air pipe is equipped with an air pipe temperature sensor on the back pipe of the heat exchange device, and the front portion is equipped with a solenoid valve for controlling the flow of fluid. . The heat exchange effect in the heat exchange device is adjusted by the temperature fed back by the air pipe temperature sensor to adjust the air temperature after heat exchange.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的去离子水管道在热交换装置中热交换装置温度传感器，前段设有控制流体通断的电磁阀，上述电磁阀前端设有燃料电池堆散热系统，所述的燃料电池堆散热系统上设有燃料电池堆散热系统温度传感器。去离子水在通过热交换后经过燃料电池堆后再流入燃料电池堆的散热系统，散发掉多余的热量之后再经过电磁阀控制流入热交换装置，通过热交换装置温度传感器和燃料电池堆散热系统温度传感器反馈的水流温度来调节整体系统的散热效果。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the deionized water pipeline is provided with a heat exchange device temperature sensor in the heat exchange device, and the front section is provided with a solenoid valve for controlling the on and off of the fluid. The front end of the solenoid valve is provided with a fuel cell stack heat dissipation system, and the fuel cell stack heat dissipation system is provided with a fuel cell stack heat dissipation system temperature sensor. Deionized water passes through the fuel cell stack after heat exchange, and then flows into the heat dissipation system of the fuel cell stack. After dissipating the excess heat, it flows into the heat exchange device through the solenoid valve control, and passes through the heat exchange device temperature sensor and the fuel cell stack heat dissipation system The water flow temperature fed back by the temperature sensor is used to adjust the heat dissipation effect of the overall system.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的热交换装置包含密封容器罐体和密封端盖以及与端盖配合密封用的密封垫。密封垫与密封端盖与密封容器罐体组成一个密封整体，减少内部的热能流失，密封容器罐体上设有安装和固定的氢气管道和空气管道的开口，所述的罐体上设有直接流入去离子水的水进出口，所述的罐体上还设有安装温度补偿加热器的温度补偿器端口。去离子水直接流入并充满罐体，能与翅片、氢气管道和空气管道充分接触，温度补偿器端口设在空气管道和氢气管道开口的下方，因为在需要加热的时候热往上散发，减少浪费。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the heat exchange device includes a sealed container body, a sealed end cover, and a sealing gasket for cooperating with the end cover for sealing. The sealing gasket and the sealing end cover form a sealed whole with the sealed container body to reduce the loss of internal heat energy. The sealed container body is provided with openings for installing and fixed hydrogen pipes and air pipes, and the tank body is provided with direct openings. The water inlet and outlet of the deionized water are also provided with a temperature compensator port for installing a temperature compensation heater on the tank body. The deionized water flows directly into and fills the tank body, and can fully contact the fins, hydrogen pipes and air pipes. The temperature compensator port is set under the openings of the air pipes and hydrogen pipes, because when heating is needed, the heat will be dissipated upwards, reducing waste.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的为温度补偿加热器为均匀密集分布在翅片下方的u型电加热棒。在整体系统热能不够的时候采用外部供热来减少低温对装置、系统的损坏。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the temperature compensation heater is U-shaped electric heating rods evenly and densely distributed under the fins. When the overall system heat energy is insufficient, external heating is used to reduce the damage to the device and the system due to low temperature.
在上述的燃料电池热平衡“气-气-液”三相热交换系统中，所述的交换系统包含 接受处理各个温度传感器信号以温度补偿加热器来调节氢气管道、空气管道、去离子管道和燃料电池堆温度的中央处理器。中央处理器集中处理协调全局温度，温度传感器将温度信号传至中央处理器，中央处理器处理信号后控制温度加热补偿器和燃料电池散热系统以协调温度。In the above-mentioned fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system, the exchange system includes receiving and processing the signals of various temperature sensors to temperature-compensate the heater to adjust the hydrogen pipeline, air pipeline, deionization pipeline and fuel The central processing unit of the battery stack temperature. The central processing unit centrally processes and coordinates the global temperature, the temperature sensor transmits the temperature signal to the central processing unit, and the central processing unit controls the temperature heating compensator and the fuel cell heat dissipation system to coordinate the temperature after processing the signal.
与现有技术相比，本燃料电池热平衡“气-气-液”三相热交换系统热循环了整体结构内的大多属热量，减少了没必要的热能提供，又能保证在低温环境下的工作，节能环保。Compared with the prior art, the fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system thermally circulates most of the heat in the overall structure, reduces unnecessary heat supply, and can ensure the low temperature environment. Work, energy saving and environmental protection.
发明的有益效果The beneficial effects of the invention
对附图的简要说明Brief description of the drawings
附图说明Description of the drawings
图1是本发明的流程示意图；Figure 1 is a schematic flow diagram of the present invention;
图2是本发明的热交换装置结构示意图。Fig. 2 is a schematic diagram of the structure of the heat exchange device of the present invention.
图中，1、空气管道；2、氢气管道；3、去离子水管道；4、热交换装置；41、密封容器罐体；411、开口；412、进水口；413、出水口；414、温度补偿加热器端口；42、密封端盖；43、密封垫；5、温度补偿加热器；6、翅片；7、氢气温度传感器；8、电磁阀；9、空气温度传感器；10、热交换装置温度传感器；11、燃料电池堆散热系统；12、燃料电池堆散热系统温度传感器；13、中央处理器。In the figure, 1. Air pipeline; 2. Hydrogen pipeline; 3. Deionized water pipeline; 4. Heat exchange device; 41. Sealed container; 411. Opening; 412. Water inlet; 413. Water outlet; 414. Temperature Compensation heater port; 42, sealing end cover; 43, gasket; 5. temperature compensation heater; 6, fin; 7, hydrogen temperature sensor; 8, solenoid valve; 9, air temperature sensor; 10, heat exchange device Temperature sensor; 11. Fuel cell stack cooling system; 12. Fuel cell stack cooling system temperature sensor; 13. Central processing unit.
实施该发明的最佳实施例The best embodiment for implementing the invention
本发明的最佳实施方式The best mode of the present invention
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
如图1所示，本燃料电池热平衡“气-气-液”三相热交换系统，包含燃料电池堆，空气管道1，氢气管道2，去离子水管道3，氢气管道2、空气管道1和去离子水管道3上设有热交换装置4。As shown in Figure 1, the fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system includes a fuel cell stack, air pipe 1, hydrogen pipe 2, deionized water pipe 3, hydrogen pipe 2, air pipe 1, and The deionized water pipeline 3 is provided with a heat exchange device 4.
空气需经过压缩处理后才能进入燃料电池堆，压缩后的空气温度高于燃料电池堆的工作温度范围，需在进入燃料电池堆前降温；高压液态的氢气需多级减压 后才能进入燃料电池堆，解压后的氢气温度低于燃料电池堆的工作温度范围，需在进入燃料电池堆前升温；压缩、解压、调节气体的温度都需要装置做功会产生热能；去离子水用于调节燃料电池堆的温度。本燃料电池热平衡“气-气-液”三相热交换系统在空气管道1、氢气管道2和去离子水管道3上设热交换装置4，用水和高温空气的热量带动低温氢气，减少热能的浪费，系统的整体热循环。The air needs to be compressed before it can enter the fuel cell stack. The compressed air temperature is higher than the fuel cell stack's operating temperature range and needs to be cooled before entering the fuel cell stack; high-pressure liquid hydrogen needs to be decompressed in multiple stages before it can enter the fuel cell Stack, the temperature of the decompressed hydrogen is lower than the working temperature range of the fuel cell stack, and it needs to be heated before entering the fuel cell stack; compression, decompression, and adjustment of the gas temperature require equipment to work and generate heat; deionized water is used to regulate the fuel cell The temperature of the pile. The fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system is equipped with a heat exchange device 4 on the air pipe 1, hydrogen pipe 2 and deionized water pipe 3. The heat of water and high-temperature air drives low-temperature hydrogen to reduce thermal energy. Waste, the overall thermal cycle of the system.
上述的热交换装置4中设有温度补偿加热器5。燃料电池在无特殊处理或辅助工具的情况中，在低于0℃的工作环境下，阴极侧反应生成的水易结冰导致催化层、扩散层堵塞，阻碍反应的进行，并且水结冰产生的体积变化也会对膜电极组件的结构产生破坏，降低燃料电池性能。为解决该问题，燃料电池冷启动时，需将进入燃料电池电堆的气体进行处理，使燃料电池电堆达到稳定工作温度环境。通过热交换装置4将高温压缩空气的热能转移至氢气及水，热量不足时，燃料电池系统冷启动时可以启动热交换装置4中的温度补偿加热器5。The above-mentioned heat exchange device 4 is provided with a temperature compensation heater 5. In the case of fuel cells without special treatment or auxiliary tools, in a working environment below 0°C, the water produced by the reaction on the cathode side is easy to freeze, causing the catalytic layer and diffusion layer to block, hindering the progress of the reaction, and the water freezes. The change in volume of the membrane will also damage the structure of the membrane electrode assembly and reduce the performance of the fuel cell. To solve this problem, when the fuel cell is cold-started, the gas entering the fuel cell stack needs to be processed to make the fuel cell stack reach a stable operating temperature environment. The heat energy of the high-temperature compressed air is transferred to hydrogen and water through the heat exchange device 4. When the heat is insufficient, the temperature compensation heater 5 in the heat exchange device 4 can be started when the fuel cell system is cold-started.
上述的热交换装置4中设有与氢气管道2、氧气管道3和去离子水紧密接触的翅片6。翅片6在平衡高温压缩空气、低温氢气和去离子水的温度中起重要作用，氢气管道2和空气管道1贯穿翅片6，管道水平安装。The above-mentioned heat exchange device 4 is provided with fins 6 in close contact with the hydrogen pipe 2, the oxygen pipe 3 and the deionized water. The fin 6 plays an important role in balancing the temperatures of high-temperature compressed air, low-temperature hydrogen and deionized water. The hydrogen pipe 2 and the air pipe 1 penetrate the fin 6, and the pipes are installed horizontally.
上述的氢气管道2在热交换装置4后段管道上设有氢气管温度传感器7，前段设有控制流体通断的电磁阀8。通过氢气管温度传感器7反馈的温度来调节热交换装置4中的热交换效果以调节热交换后的氢气温度。所述的空气管道3在热交换装置4后段管道上设有空气管温度传感器9，前段设有控制流体通断的电磁阀8。通过空气管温度传感器9反馈的温度来调节热交换装置4中的热交换效果以调节热交换后的空气温度。控制调节氢气与空气的比例达到高温压缩空气加热低温氢气的最佳效果。The above-mentioned hydrogen pipeline 2 is provided with a hydrogen pipe temperature sensor 7 on the back pipe of the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided at the front portion. The heat exchange effect in the heat exchange device 4 is adjusted by the temperature fed back by the hydrogen pipe temperature sensor 7 to adjust the hydrogen temperature after heat exchange. The air pipe 3 is provided with an air pipe temperature sensor 9 on the rear pipe of the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided at the front portion. The heat exchange effect in the heat exchange device 4 is adjusted by the temperature fed back by the air pipe temperature sensor 9 to adjust the air temperature after heat exchange. Control and adjust the ratio of hydrogen to air to achieve the best effect of high-temperature compressed air heating low-temperature hydrogen.
上述的去离子水管道3在热交换装置4中设有热交换装置温度传感器10，前段设有控制流体通断的电磁阀8，上述电磁阀8前端设有燃料电池堆散热系统11，所述的燃料电池堆散热系统11上设有燃料电池堆散热系统温度传感器12。去离子水在通过热交换后经过燃料电池堆后再流入燃料电池堆的散热系统11，散发掉多余的热量之后再经过电磁阀8流入热交换装置4。通过热交换装置温度传感器10和燃料电池堆散热系统温度传感器12反馈的水流温度来调节整体系统的散热效 果。The above-mentioned deionized water pipeline 3 is provided with a heat exchange device temperature sensor 10 in the heat exchange device 4, and a solenoid valve 8 for controlling the on-off of the fluid is provided in the front section. The front end of the solenoid valve 8 is provided with a fuel cell stack heat dissipation system 11. The fuel cell stack heat dissipation system 11 is provided with a fuel cell stack heat dissipation system temperature sensor 12. After the deionized water passes through the fuel cell stack through heat exchange, it flows into the heat dissipation system 11 of the fuel cell stack, and then flows into the heat exchange device 4 through the solenoid valve 8 after dissipating excess heat. The heat dissipation effect of the overall system is adjusted by the water flow temperature fed back by the temperature sensor 10 of the heat exchange device and the temperature sensor 12 of the fuel cell stack heat dissipation system.
如图2所示：所述的热交换装置4包含密封容器罐体41和密封端盖42以及与端盖配合密封用的密封垫43。所述的密封容器罐体41上设有安装和固定的氢气管道2和空气管道1的开口411，所述的罐体上设有直接流入去离子水的进水口412出水口413，所述的罐体上还设有安装温度补偿加热器5的温度补偿加热器端口414。密封垫43与密封端盖42与密封容器罐体41组成一个密封整体，减少内部的热能流失，去离子水直接流入并充满罐体，能与翅片6、氢气管道2和空气管道1充分接触，温度补偿加热器端口414设在空气管道1和氢气管道2开口411的下方，温度补偿加热器5为均匀密集分布在翅片下方的u型电加热棒，在整体系统热能不够的时候采用外部供热来减少低温对装置、系统的损坏。As shown in FIG. 2, the heat exchange device 4 includes a sealed container body 41, a sealed end cover 42 and a sealing gasket 43 that cooperates with the end cover for sealing. The tank body 41 of the sealed container is provided with an opening 411 for installing and fixing the hydrogen pipe 2 and the air pipe 1, and the tank body is provided with a water inlet 412 and a water outlet 413 that directly flow into the deionized water. The tank body is also provided with a temperature compensation heater port 414 on which the temperature compensation heater 5 is installed. The gasket 43, the sealing end cap 42 and the sealed container tank 41 form a sealed whole to reduce the loss of internal heat energy. The deionized water directly flows into and fills the tank body, and can fully contact the fin 6, the hydrogen pipe 2 and the air pipe 1. The temperature compensation heater port 414 is located below the opening 411 of the air pipe 1 and the hydrogen pipe 2. The temperature compensation heater 5 is a U-shaped electric heating rod evenly and densely distributed under the fins. When the overall system heat energy is insufficient, the external Heat supply to reduce the damage of low temperature to the device and system.
所述的交换系统包含接受处理各个温度传感器信号以温度补偿加热器来调节氢气管道2、空气管道1、去离子管道3和燃料电池堆温度的中央处理器13。中央处理器集中处理协调全局温度，各温度传感器将温度信号传至中央处理器，中央处理器处理信号后控制温度加热补偿器和燃料电池散热系统以协调温度。The exchange system includes a central processing unit 13 which receives and processes the signals of various temperature sensors to adjust the temperature of the hydrogen pipeline 2, the air pipeline 1, the deionization pipeline 3 and the fuel cell stack by the temperature compensation heater. The central processing unit centrally processes and coordinates the global temperature. Each temperature sensor transmits the temperature signal to the central processing unit. After processing the signal, the central processing unit controls the temperature heating compensator and the fuel cell cooling system to coordinate the temperature.
如实施例所示，空气经压缩后带有热能通过翅片将热能散发给氢气热交换管和去离子水，高压氢气经过解压后温度降低通过翅片吸收空气热交换管和去离子水中的热能各自达到燃料电池使用的条件；去离子水同时还经过燃料电池堆和电池堆的散热系统，吸收热能后又回到热交换装置循环了多数的热能；当电池整体处于低于0℃的工作环境下，空气经压缩带来的热能不足以支持整体结构的温度，需要启动温度补偿加热器以使得燃料电池正常工作。还有中央处理器控制并协调全局温度。As shown in the embodiment, the compressed air contains heat energy and dissipates the heat energy to the hydrogen heat exchange tube and deionized water through the fins. After the high-pressure hydrogen is decompressed, the temperature is reduced and the heat energy in the air heat exchange tube and deionized water is absorbed by the fins. Each reaches the fuel cell usage conditions; the deionized water also passes through the fuel cell stack and the heat dissipation system of the cell stack, absorbs the heat energy, and returns to the heat exchange device to circulate most of the heat energy; when the battery as a whole is in a working environment below 0°C Under the circumstances, the heat energy brought by the compressed air is not enough to support the temperature of the overall structure, and the temperature compensation heater needs to be activated to make the fuel cell work normally. There is also a central processor that controls and coordinates the global temperature.
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the technical field of the present invention can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definition of the appended claims. Range.

Claims (9)

  1. 一种燃料电池热平衡“气-气-液”三相热交换系统，包含燃料电池堆，空气管道(1)，氢气管道(2)，去离子水管道(3)，其特征在于：所述的氢气管道、空气管道和去离子水管道上设有热交换装置(4)。A fuel cell heat balance "gas-gas-liquid" three-phase heat exchange system, comprising a fuel cell stack, an air pipe (1), a hydrogen pipe (2), a deionized water pipe (3), and is characterized in that: The hydrogen pipeline, the air pipeline and the deionized water pipeline are provided with a heat exchange device (4).
  2. 根据权利要求1所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的热交换装置(4)中设有温度补偿加热器(5)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 1, wherein the heat exchange device (4) is provided with a temperature compensation heater (5).
  3. 根据权利要求1或2所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的热交换装置中设有与氢气管道、氧气管道和去离子水紧密接触的翅片(6)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 1 or 2, characterized in that: the heat exchange device is provided with a hydrogen pipeline, an oxygen pipeline and deionized water Fins (6) in close contact.
  4. 根据权利要求1或2所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的氢气管道(2)在热交换装置(4)后段管道上设有氢气管温度传感器(7)，前段设有控制流体通断的电磁阀(8)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 1 or 2, characterized in that: the hydrogen pipeline (2) is on the back pipe of the heat exchange device (4) A hydrogen pipe temperature sensor (7) is provided, and a solenoid valve (8) for controlling the on-off of the fluid is provided in the front section.
  5. 根据权利要求4述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的空气管道(1)在热交换装置(4)后段管道上设有空气管温度传感器(9)，前段设有控制流体通断的电磁阀(8)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 4, characterized in that: the air pipe (1) is provided with air on the back pipe of the heat exchange device (4) The pipe temperature sensor (9) is provided with a solenoid valve (8) for controlling the on-off of the fluid in the front section.
  6. 根据权利要求5所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的去离子水管道(3)在热交换装置中设有热交换装置温度传感器(10)，前段设有控制流体通断的电磁阀(8)，上述电磁阀前端设有燃料电池堆散热系统(11)，所述的燃料电池堆散热系统上设有燃料电池堆散热系统温度传感器(12)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 5, characterized in that: the deionized water pipeline (3) is provided with a heat exchange device temperature The sensor (10) is provided with a solenoid valve (8) for controlling the on-off of the fluid in the front section, the front end of the solenoid valve is provided with a fuel cell stack heat dissipation system (11), and the fuel cell stack heat dissipation system is provided with a fuel cell stack heat dissipation system Temperature sensor (12).
  7. 根据权利要求1所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的热交换装置包含密封容器罐体(41)和密封端盖(42)以及与端盖配合密封用的密封垫(43)，所述 的密封容器罐体(41)上设有安装和固定的氢气管道和空气管道的开口(411)，所述的罐体上设有直接流入去离子水的进水口(412)和流出去离子水的出水口(413)，所述的罐体上还设有安装温度补偿加热器的温度补偿加热器端口(414)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 1, wherein the heat exchange device comprises a sealed container body (41) and a sealed end cover (42) And a sealing gasket (43) for cooperating with the end cover for sealing, the sealed container body (41) is provided with openings (411) for installing and fixing hydrogen pipes and air pipes, and the tank body is provided with openings (411) for installing and fixing hydrogen and air pipes. The water inlet (412) for direct inflow of deionized water and the outlet (413) for outflow of ionized water are directly provided. The tank is also provided with a temperature compensation heater port (414) for installing a temperature compensation heater.
  8. 根据权利要求2所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的温度补偿加热器(5)为均匀分布的电加热棒。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 2, wherein the temperature compensation heater (5) is a uniformly distributed electric heating rod.
  9. 根据权利要求6所述的一种燃料电池热平衡“气-气-液”三相热交换系统，其特征在于：所述的三相热交换系统包含接受处理各个温度传感器信号以温度补偿加热器(5)来调节氢气管道、空气管道、去离子水管道和燃料电池电堆温度的中央处理器(13)。A fuel cell thermal balance "gas-gas-liquid" three-phase heat exchange system according to claim 6, characterized in that: the three-phase heat exchange system includes receiving and processing the signals of various temperature sensors to temperature compensate the heater ( 5) Central processing unit (13) to adjust the temperature of hydrogen pipeline, air pipeline, deionized water pipeline and fuel cell stack.
PCT/CN2019/125439 2019-12-11 2019-12-14 Heat-balance "gas-gas-liquid" three-phase heat exchange system for fuel cell WO2021114311A1 (en)

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