WO2023035567A1 - Air compressor system with cooling function, fuel cell system, and control method - Google Patents

Air compressor system with cooling function, fuel cell system, and control method Download PDF

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Publication number
WO2023035567A1
WO2023035567A1 PCT/CN2022/079841 CN2022079841W WO2023035567A1 WO 2023035567 A1 WO2023035567 A1 WO 2023035567A1 CN 2022079841 W CN2022079841 W CN 2022079841W WO 2023035567 A1 WO2023035567 A1 WO 2023035567A1
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WIPO (PCT)
Prior art keywords
air
fuel cell
intercooler
temperature
outlet
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PCT/CN2022/079841
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French (fr)
Chinese (zh)
Inventor
刘小青
邓佳
梁未栋
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中山大洋电机股份有限公司
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Publication of WO2023035567A1 publication Critical patent/WO2023035567A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
    • F04D29/5833—Cooling at least part of the working fluid in a heat exchanger flow schemes and regulation thereto
    • 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
    • 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 an air compressor system with cooling function, a fuel cell system and a control method.
  • a fuel cell is an efficient and clean energy conversion device.
  • the air compressor compresses the external air and sends it into the fuel cell stack module to provide oxygen for the cathode side of the stack module.
  • the oxygen fed into the air reacts electrochemically with the hydrogen, and the water produced is discharged together with the remaining air.
  • the air compressor is an indispensable key component in the fuel cell.
  • the power consumed by the air compressor accounts for about 15-25% of the total output power of the fuel cell. It is a large energy consumer in the auxiliary system of the fuel cell. How to effectively Improving the efficiency of air compressors, and thus improving the overall efficiency of the entire fuel cell system, is an urgent problem to be solved by the entire industry.
  • centrifugal air compressors are widely used in fuel cells due to their advantages of high efficiency, energy saving, and environmental protection.
  • the centrifugal air compressor adopts two-stage pressurization method to compress the air to the pressure required for the fuel cell operating conditions, and the temperature of the discharged air after compression can reach above 120°C, and the air at such a high temperature is sent into the stack, The electric stack will be damaged, and the air must be cooled to 60-70°C through the intercooler before it can be sent into the electric stack for reaction, and the intercooler takes up a lot of space in the fuel cell arrangement, reducing the fuel cell's efficiency.
  • Volume to Power Ratio volume to Power Ratio.
  • the air compressor has two stages of supercharging, and each stage of supercharging will increase the temperature of the air. After the first stage of supercharging increases the temperature of the air, the more active the high-temperature gas molecules are, the more difficult it is to compress. The second stage of supercharging must consume More power can achieve the purpose of secondary supercharging.
  • the patent announcement number is: CN209212609U
  • the patent name is: a kind of invention patent of a two-stage air compression system with radial and axial diffusers
  • the above technical solutions also have the following defects: 1)
  • the air temperature output from the output end of the second-stage booster of the air compressor lacks effective detection, and the intercooler module does not mention adjusting the heat dissipation capacity of the intercooler module according to the air temperature output by the air compressor, which cannot form a closed-loop control requirement , affecting the work of the fuel cell; 2)
  • the motor of the air compressor works in a high temperature environment for a long time, which affects the service life of the bearing system, thereby affecting the working life of the motor.
  • An object of the present invention is to provide an air compressor system with cooling function, which solves the problem that the air compressor system with cooling function in the prior art lacks temperature detection of the output air, which leads to the inability to form a closed-loop control in cooperation with the intercooler, which affects the fuel cell. technical issues at work.
  • a further object of the present invention is to provide an air compressor system with cooling function, which solves the problem that the working environment temperature of the driving motor in the air compressor system with cooling function in the prior art is too high, which not only affects the service life of the bearing, but also causes the motor to fail. Technical issues with increased breakdowns.
  • the third object of the present invention is to provide a fuel cell system, which solves the technical problems in the prior art that the hollow air compressor system and the intercooler are manufactured separately and arranged separately, resulting in large volume, low modularity, and difficulty in arrangement.
  • the air compressor system with cooling function includes a drive motor, a primary air compression system, a secondary air compression system and an intercooler.
  • the primary air compression system and the secondary air compression system are respectively installed at both ends of the drive motor and controlled by Drive the spindle drive of the motor, where:
  • the first air inlet of the first-stage air compression system performs one-stage compression on the air and then outputs high-temperature primary compressed air;
  • the second air inlet of the intercooler is connected to the first air outlet of the primary air compression system, and the high-temperature primary compressed air output from the primary air compression system is cooled by the intercooler to output low-temperature primary compressed air;
  • the third air inlet of the two-stage air compression system is connected to the second air outlet of the intercooler, and a part of the low-temperature primary compressed air output by the intercooler enters the third air inlet of the two-stage air compression system, and then passes through the second stage. Compression, output from the third air outlet of the secondary air compression system;
  • a temperature sensor is installed at the third air outlet of the secondary air compression system, and the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system.
  • the above-mentioned intercooler also outputs another part of the low-temperature primary compressed air to the inside of the drive motor to dissipate heat to the stator assembly and the bearing system inside the drive motor.
  • the above-mentioned primary air compression system and secondary air compression system are all centrifugal fan systems, including a volute and a wind wheel, and the wind wheel is connected to the main shaft of the drive motor.
  • the above-mentioned intercooler includes a housing, a second air inlet, a second air outlet and a heat exchange device, the heat exchange device is installed in the housing, and the second air inlet, the second air outlet and the air branch outlet are respectively arranged in the shell
  • the bottom and top of the body, and the left and right sides of the housing are respectively provided with a coolant inlet and a coolant outlet.
  • the air branch outlet of the above-mentioned intercooler is connected with the air inlet nozzle on the surface of the driving motor through a pipeline, and then the stator assembly and the bearing system inside the driving motor are radiated, and finally discharged from the air outlet nozzle on the surface of the driving motor.
  • the above housing is provided with a coolant inlet chamber and a coolant outlet chamber, the coolant inlet chamber communicates with the coolant inlet, the coolant outlet chamber communicates with the coolant outlet, and the heat exchange device is arranged in the cooling Between the liquid inlet chamber and the coolant outlet chamber.
  • the above-mentioned heat exchange device includes a plurality of heat dissipation corrugated plates and several laminates with water channels, the plurality of heat dissipation corrugated plates and several laminates are spaced apart, and a number of air flow channels are formed between the heat dissipation corrugated plates and the laminates.
  • the second air inlet communicates with the second air outlet and the air branch outlet through an air flow channel.
  • the two ends of the laminate are respectively equipped with an upper baffle and a lower baffle, and the upper baffle and the housing form a cooling liquid inlet chamber.
  • the lower baffle and the casing form a cooling liquid outlet chamber, and the cooling liquid inlet chamber and the cooling liquid outlet chamber are communicated through several water channels.
  • the first air outlet of the above-mentioned first-stage air compression system communicates with the second air inlet of the intercooler; the second air outlet of the intercooler is connected to the third air inlet of the second-stage air compression system through a connecting pipeline, and the above-mentioned
  • the second air outlet of the intercooler is set in the middle of the mounting boss.
  • a fuel cell system includes a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system
  • the air supply system includes a filter, an air compressor system and a humidifier, the air is filtered through the filter, and then Pressurized by the air compressor system, then use a humidifier to adjust the air humidity, and finally deliver to the air inlet of the fuel cell stack module, characterized in that: the air compressor system is the above-mentioned air compressor with cooling function system, a temperature sensor is installed at the third air outlet of the secondary air compression system, the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system controller, the fuel cell system controller According to the temperature signal, the coolant flow rate of the cooling circulation system input to the intercooler is controlled to dynamically adjust the cooling capacity, thereby indirectly adjusting the temperature of the discharged air from the third air outlet of the secondary air compression system.
  • a control method for a fuel cell system wherein the fuel cell system adopts the fuel cell system described above, and is characterized in that: when the fuel cell system controller controls the fuel cell stack module to start working, the self-check process is started:
  • Step 1 Judging whether the air temperature signal T detected by the temperature sensor is greater than the first set temperature T1, if so, the fuel cell system controller controls the cooling cycle system to increase the coolant flow rate input to the intercooler to improve the intercooler cooling capacity of the device, cool down the air, and then go to step 2; if not, also go to step 2;
  • Step 2 Determine whether the air temperature signal T detected by the temperature sensor is lower than the second set temperature T2, if yes, the fuel cell system controller controls the cooling circulation system to reduce the coolant flow input to the intercooler to reduce the intercooler heat dissipation capacity of the device, heat up the air, and then go to step 3; if not, go to step 3;
  • Step 3 Judging whether the air temperature signal T detected by the temperature sensor is greater than the second set temperature T2 and less than the first set temperature T1, if yes, the fuel cell system controller controls the cooling cycle system to maintain the current input to the center The coolant flow rate of the cooler is maintained to maintain the heat dissipation capacity of the existing intercooler, and the fuel cell enters the normal working mode.
  • the present invention has the following effects:
  • the first solution of the present invention is to integrate the intercooler and the air compressor system together, including the drive motor, the primary air compression system, the secondary air compression system and the intercooler, the primary air compression system and the secondary air
  • the compression system is respectively installed at both ends of the drive motor and driven by the main shaft of the drive motor.
  • a temperature sensor is installed at the third air outlet of the two-stage air compression system, and the temperature sensor detects the air discharged from the third air outlet of the two-stage air compression system. temperature, and send it to the fuel cell system controller.
  • the fuel cell system controller controls the coolant flow of the cooling cycle system input to the intercooler according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the third stage of the two-stage air compression system.
  • the temperature of the air discharged from the air outlet forms a closed-loop control, which can effectively control the temperature of the air discharged from the third air outlet of the secondary air compression system, adapt to the requirements of the fuel cell stack module, and improve the operating efficiency and reliability of the system.
  • the intercooler of the present invention also outputs another part of the low-temperature primary compressed air to the inside of the drive motor to dissipate heat to the stator assembly and bearing system inside the drive motor, so that the drive motor always works at a lower temperature and extends the bearing
  • the service life of the motor improves the reliability of the motor.
  • a fuel cell system of the present invention includes a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system, the air supply system includes a filter, an air compressor system and a humidifier, and the air is filtered filter, then pressurized by the air compressor system, and then use the humidifier to adjust the air humidity, and finally transport it to the air inlet of the fuel cell stack module.
  • the air compressor system is the above-mentioned cooling Functional centrifugal air compressor system, install a temperature sensor at the third air outlet of the secondary air compression system, the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system for control
  • the controller of the fuel cell system controls the coolant flow of the cooling circulation system input to the intercooler according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the temperature of the exhaust air from the third air outlet of the secondary air compression system.
  • the integration is high, forming modularization, which can omit the traditional fuel cell and an independent intercooler component, which is small in size and easy to layout.
  • Fig. 1 is the block schematic diagram of embodiment one of the present invention.
  • Fig. 2 is a perspective view of an angle provided by Embodiment 1 of the present invention.
  • Fig. 3 is a perspective view from another angle provided by Embodiment 1 of the present invention.
  • Fig. 4 is an exploded view of an angle provided by Embodiment 1 of the present invention.
  • Fig. 5 is an exploded view from another angle provided by Embodiment 1 of the present invention.
  • Fig. 6 is a perspective view of the intercooler provided by Embodiment 1 of the present invention.
  • Fig. 7 is a structural cross-sectional view of the intercooler provided by Embodiment 1 of the present invention.
  • Fig. 8 is a perspective view of the heat exchange device provided by Embodiment 1 of the present invention.
  • Fig. 9 is a block principle diagram of Embodiment 2 of the present invention.
  • Fig. 10 is a schematic diagram of the closed-loop control of Embodiment 2 of the present invention.
  • Fig. 11 is a flow chart of Embodiment 3 of the present invention.
  • the air compressor system with cooling function provided by this embodiment includes a drive motor 1, a primary air compression system 2, a secondary air compression system 3 and an intercooler 4, and the primary air
  • the compression system 2 and the secondary air compression system 3 are respectively installed at both ends of the drive motor 1 and driven by the main shaft of the drive motor 1, wherein: the primary air compression system 2 has a first air inlet 21 and a first air outlet 22;
  • the cooler 4 has a second air inlet 44 and a second air outlet 46 ;
  • the secondary air compression system 3 has a third air inlet and a third air outlet 31 .
  • the first air inlet 21 of the primary air compression system 1 performs primary compression on the air and then outputs high-temperature primary compressed air;
  • the second air inlet 44 of the intercooler 4 is connected to the first air outlet 22 of the primary air compression system 2, and the high-temperature primary compressed air output from the primary air compression system 2 passes through the cooling of the intercooler 4 and outputs a low temperature primary compressed air;
  • the third air inlet of the secondary air compression system 3 is connected to the second air outlet 46 of the intercooler 4, and a part of the low-temperature primary compressed air output by the intercooler 4 enters the third air inlet of the secondary air compression system 3 , and then through two-stage compression, output from the third air outlet 31 of the two-stage air compression system 3;
  • a temperature sensor 32 is installed at the third air outlet 31 of the secondary air compression system 3 , and the temperature sensor 32 detects the temperature of the air discharged from the third air outlet of the secondary air compression system 3 .
  • the present invention installs a temperature sensor at the third air outlet of the secondary air compression system, and the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system controller, and the fuel cell system controller According to the temperature signal, the coolant flow rate of the cooling circulation system input to the intercooler is controlled to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the temperature of the discharged air from the third air outlet of the secondary air compression system, forming a closed-loop control, which can effectively control the second stage.
  • the temperature of the air discharged from the third air outlet of the stage air compression system meets the requirements of the fuel cell stack module and improves the operating efficiency and reliability of the system.
  • the above-mentioned intercooler 4 also outputs another part of the low-temperature primary compressed air to the inside of the drive motor 1 to dissipate heat to the stator assembly and bearing system inside the drive motor 1, so that the drive motor 1 always works at a lower temperature and prolongs the life of the drive motor 1.
  • the service life of the bearing improves the reliability of the motor.
  • the intercooler 4 is installed on the side of the drive motor 1, and the air enters the primary air compression system 2 from the first air inlet 21 of the air compressor, and then flows from the first air compression system 2 of the primary air compressor.
  • the air outlet 22 is discharged to form high-temperature primary compressed air.
  • the first air outlet 22 of the primary air compression system 2 communicates with the second air inlet 44 of the intercooler 4; the second air outlet 46 of the intercooler 4 is connected to the secondary air compression system 3 through the connecting pipe 33 Third air inlet.
  • the above-mentioned connecting pipe 33 end is provided with a mounting flange 331, and the top of the housing 40 protrudes from a mounting boss 45, and the second air outlet 46 of the intercooler 4 is arranged in the middle of the mounting boss 45.
  • the mounting flange 331 at the end of the pipe 33 can be quickly and conveniently connected to the mounting boss 45 .
  • the temperature sensor 32 is installed at the third air outlet 31 of the above-mentioned secondary air compression system 3, and the temperature sensor 32 detects the temperature of the air discharged from the third air outlet 31 of the secondary air compression system 3.
  • the tail pipe wall of the third air outlet 31 The installation through hole 311 is dug out above, and the temperature sensor 32 is embedded and installed on the installation through hole 311, which has a simple structure and is easy to manufacture.
  • the intercooler 4 includes a housing 40, a second air inlet 44, a second air outlet 46 and a heat exchange device 6, the heat exchange device 6 is installed in the housing 40, the second air inlet 44, the second air outlet 46 and air branch outlet 43 are respectively arranged at the bottom and top of the casing 40, and the left side and the right side of the casing 40 are respectively provided with a cooling liquid inlet 41 and a cooling liquid outlet 42, the structure is simple and the layout is reasonable.
  • the above housing 40 is provided with a coolant inlet chamber 47 and a coolant outlet chamber 48, the coolant inlet chamber 47 communicates with the coolant inlet 41, the coolant outlet chamber 48 communicates with the coolant outlet 42 Communication, the heat exchange device 6 is arranged between the cooling liquid inlet chamber 47 and the cooling liquid outlet chamber 48, and the structure is simple and the layout is reasonable.
  • the above-mentioned heat exchange device 6 includes several sheets of heat dissipation corrugated plates 64 and several laminates 63 with water channels 631, and the intervals between several sheets of heat dissipation corrugated plates 64 and several laminates 63 are distributed, and the heat dissipation corrugated plates 64 and laminates 63 Several air channels 65 are formed between them, the second air inlet 44 communicates with the second air outlet 46 and the air branch outlet 43 through the air channels 65, the cooling liquid inlet chamber 47 and the cooling liquid outlet chamber 48 They are connected through several waterways 631.
  • the upper baffle 61 and the lower baffle 62 are respectively installed at both ends of the laminate 63, the upper baffle 61 and the housing 40 form a cooling liquid inlet chamber 47, and the lower baffle 62 and the housing 40 form a cooling liquid outlet chamber 48.
  • the structure is compact, the installation is convenient, and the manufacture is easy.
  • Another part of the low-temperature primary compressed air output by the intercooler 4 is sent to the inside of the drive motor 1 to dissipate heat to the stator assembly and the bearing system inside the drive motor 1, and the air branch outlet 43 of the intercooler 4 is connected to the drive motor 1 through the pipeline
  • the air inlet nozzle 11 on the surface is connected, then the stator assembly and the bearing system inside the drive motor 1 are radiated, and finally discharged from the air outlet nozzle 12 on the surface of the drive motor 1 .
  • the above-mentioned primary air compression system 2 and secondary air compression system 3 are all centrifugal fan systems, including a volute and a wind wheel, and the wind wheel is connected to the main shaft of the driving motor.
  • this embodiment is a fuel cell system, including a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system
  • the air supply system includes a filter, an air compressor System and humidifier, the air is filtered by the filter, then pressurized by the air compressor system, and then the humidifier is used to adjust the air humidity, and finally delivered to the air inlet of the fuel cell stack module, which is characterized in that: the air compressor
  • the system is the air compressor system with cooling function described in Embodiment 1.
  • a temperature sensor 32 is installed at the third air outlet 31 of the secondary air compression system 3, and the temperature sensor 32 detects the third air of the secondary air compression system 3. The temperature of the air discharged from the outlet is sent to the controller of the fuel cell system.
  • the controller of the fuel cell system controls the cooling liquid flow rate of the cooling cycle system input to the intercooler 4 according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the secondary air
  • this embodiment is a control method for a fuel cell system, the fuel cell system adopts the fuel cell system described in Embodiment 2, and the feature is that the fuel cell system controller controls the fuel cell stack module to start working , start the self-test process:
  • Step 1 Judging whether the air temperature signal T detected by the temperature sensor 32 is greater than the first set temperature T1, if so, the fuel cell system controller controls the cooling circulation system to increase the coolant flow rate input to the intercooler 4 to increase The heat dissipation capacity of the intercooler, cool down the air, and then go to step 2; if not, go to step 2;
  • Step 2 Judging whether the air temperature signal T detected by the temperature sensor 32 is lower than the second set temperature T2, if yes, the fuel cell system controller controls the cooling circulation system to reduce the coolant flow rate input to the intercooler 4 to reduce Intercooler heat dissipation capacity, heat up the air, and then go to step 3; if not, also go to step 3;
  • Step 3 Judging whether the air temperature signal T detected by the temperature sensor 32 is greater than the second set temperature T2 and less than the first set temperature T1, if yes, the fuel cell system controller controls the cooling cycle system to maintain the current input to The coolant flow rate of the intercooler 4 maintains the heat dissipation capacity of the existing intercooler 4, and the fuel cell enters a normal working mode.

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Abstract

An air compressor system with a cooling function, a fuel cell system, and a control method. The air compressor system comprises a driving electric motor (1), a primary air compression system (2), a secondary air compression system (3), and an intercooler (4), wherein a temperature sensor (32) is mounted at a third air outlet (31) of the secondary air compression system (3); the temperature sensor (32) measures the temperature of air discharged from the third air outlet (31) of the secondary air compression system (3), and sends the air temperature to a fuel cell system controller; and the fuel cell system controller controls a flow rate of a cooling liquid of a cooling circulation system input into the intercooler (4) according to a temperature signal to dynamically adjust the heat dissipation capacity thereof, thereby indirectly adjusting the temperature of the air discharged from the third air outlet (31) of the secondary air compression system (3), and forming closed-loop control. The temperature of the air discharged from the third air outlet (31) of the secondary air compression system (3) can be effectively controlled in order to meet the requirements of a fuel cell stack module, thereby improving the operating efficiency and reliability of the system.

Description

具有冷却功能的空压机***、燃料电池***及控制方法Air compressor system with cooling function, fuel cell system and control method 技术领域：Technical field:
本发明涉及具有冷却功能的空压机***、燃料电池***及控制方法。The invention relates to an air compressor system with cooling function, a fuel cell system and a control method.
背景技术：Background technique:
燃料电池是一种高效清洁的能量转换装置。空压机是将外部空气进行压缩，然后送入燃料电池电堆模块中，为电堆模块阴极一侧提供氧气。在电堆模块中，送入空气中的氧气与氢气进行电化学反应，生成的水随剩余的空气一同排出。空压机是燃料电池中的不缺少的一个关键零部件，空压机消耗的功率大约占燃料电池输出总功率的15-25％，是燃料电池辅助***中的耗能大户，如何有效的提高空压机的效率，进而改善整个燃料电池***的整体效率，是整个行业亟待解决的问题。A fuel cell is an efficient and clean energy conversion device. The air compressor compresses the external air and sends it into the fuel cell stack module to provide oxygen for the cathode side of the stack module. In the stack module, the oxygen fed into the air reacts electrochemically with the hydrogen, and the water produced is discharged together with the remaining air. The air compressor is an indispensable key component in the fuel cell. The power consumed by the air compressor accounts for about 15-25% of the total output power of the fuel cell. It is a large energy consumer in the auxiliary system of the fuel cell. How to effectively Improving the efficiency of air compressors, and thus improving the overall efficiency of the entire fuel cell system, is an urgent problem to be solved by the entire industry.
目前离心式空压机以其高效、节能、环保等优点在燃料电池中广泛使用。通常离心式空压机采用两级增压的方式，将空气压缩到燃料电池运行工况所需的压力，压缩后排出的空气温度可达120℃以上，如此高温度的空气送入电堆，将会损坏电堆，必须通过中冷器把空气冷却到60-70℃才可送入电堆中进行反应，而中冷器在燃料电池布置中占用了很大的空间，降低了燃料电池的体积与功率比。另外，空压机为两级增压，每一级增压都会把提高空气的温度，第一级增压把空气温度提高后，高温气体分子越活跃越难压缩，第二级增压必须消耗更大的功率才能到达二次增压的目的。At present, centrifugal air compressors are widely used in fuel cells due to their advantages of high efficiency, energy saving, and environmental protection. Usually the centrifugal air compressor adopts two-stage pressurization method to compress the air to the pressure required for the fuel cell operating conditions, and the temperature of the discharged air after compression can reach above 120°C, and the air at such a high temperature is sent into the stack, The electric stack will be damaged, and the air must be cooled to 60-70°C through the intercooler before it can be sent into the electric stack for reaction, and the intercooler takes up a lot of space in the fuel cell arrangement, reducing the fuel cell's efficiency. Volume to Power Ratio. In addition, the air compressor has two stages of supercharging, and each stage of supercharging will increase the temperature of the air. After the first stage of supercharging increases the temperature of the air, the more active the high-temperature gas molecules are, the more difficult it is to compress. The second stage of supercharging must consume More power can achieve the purpose of secondary supercharging.
所以需要设计一种具有冷却功能的空压机，通过在第一级增压与第二级增压之间增加中冷模块，降低空压机出口的空气温度，提高空压机的效率，取消燃料电池中的中冷器，或者减小燃料电池中的中冷器体积。从而提高整个燃料电池的效率，优化结构，减小体积，减少成本。例如专利公告号为：CN209212609U、专利名称为：一种具有径轴向扩压器的两级空气压缩***的发明专利已经披露下相关的技术方案，但以上的技术方案还存在如下缺陷：1)空压机的第二级增压的输出端输出的空气温度缺乏有效检测，且中冷模块也没有提到根据空压机 输出的空气温度来调节中冷模块的散热能力，不能形成闭环控制要求，影响燃料电池的工作；2)空压机的电机长期工作在温度偏高环境，导致影响轴承***的使用寿命，从而影响电机工作寿命。Therefore, it is necessary to design an air compressor with a cooling function. By adding an intercooler module between the first-stage supercharging and the second-stage supercharging, the air temperature at the outlet of the air compressor can be reduced, the efficiency of the air compressor can be improved, and the The intercooler in the fuel cell, or reduce the volume of the intercooler in the fuel cell. Therefore, the efficiency of the entire fuel cell is improved, the structure is optimized, the volume is reduced, and the cost is reduced. For example, the patent announcement number is: CN209212609U, and the patent name is: a kind of invention patent of a two-stage air compression system with radial and axial diffusers has disclosed the relevant technical solutions, but the above technical solutions also have the following defects: 1) The air temperature output from the output end of the second-stage booster of the air compressor lacks effective detection, and the intercooler module does not mention adjusting the heat dissipation capacity of the intercooler module according to the air temperature output by the air compressor, which cannot form a closed-loop control requirement , affecting the work of the fuel cell; 2) The motor of the air compressor works in a high temperature environment for a long time, which affects the service life of the bearing system, thereby affecting the working life of the motor.
发明内容：Invention content:
本发明的一个目的是提供具有冷却功能的空压机***，解决现有技术中具有冷却功能的空压机***因输出空气缺乏温度检测，导致与中冷器配合不能形成闭环控制，影响燃料电池的工作的技术问题。An object of the present invention is to provide an air compressor system with cooling function, which solves the problem that the air compressor system with cooling function in the prior art lacks temperature detection of the output air, which leads to the inability to form a closed-loop control in cooperation with the intercooler, which affects the fuel cell. technical issues at work.
本发明的进一步目的是提供具有冷却功能的空压机***，解决现有技术中具有冷却功能的空压机***中的驱动电机工作环境温度过高，不仅影响轴承的使用寿命，还导致电机的故障增多的技术问题。A further object of the present invention is to provide an air compressor system with cooling function, which solves the problem that the working environment temperature of the driving motor in the air compressor system with cooling function in the prior art is too high, which not only affects the service life of the bearing, but also causes the motor to fail. Technical issues with increased breakdowns.
本发明的第三个目的是提供燃料电池***，解决现有技术中空压机***与中冷器分开制造，分隔布置，导致体积较大，模块化程度低，难以排布的技术问题。The third object of the present invention is to provide a fuel cell system, which solves the technical problems in the prior art that the hollow air compressor system and the intercooler are manufactured separately and arranged separately, resulting in large volume, low modularity, and difficulty in arrangement.
本发明的目的是通过下述技术方案予以实现的。The purpose of the present invention is achieved through the following technical solutions.
具有冷却功能的空压机***，包括驱动电机、一级空气压缩***、二级空气压缩***和中冷器，一级空气压缩***和二级空气压缩***分别安装在驱动电机的两端并由驱动电机的主轴驱动，其中：The air compressor system with cooling function includes a drive motor, a primary air compression system, a secondary air compression system and an intercooler. The primary air compression system and the secondary air compression system are respectively installed at both ends of the drive motor and controlled by Drive the spindle drive of the motor, where:
一级空气压缩***的第一空气入口对空气进行一级压缩然后输出高温一次压缩空气；The first air inlet of the first-stage air compression system performs one-stage compression on the air and then outputs high-temperature primary compressed air;
所述的中冷器的第二空气入口连接在一级空气压缩***的第一空气出口，从一级空气压缩***输出的高温一次压缩空气经过中冷器的冷却输出低温一次压缩空气；The second air inlet of the intercooler is connected to the first air outlet of the primary air compression system, and the high-temperature primary compressed air output from the primary air compression system is cooled by the intercooler to output low-temperature primary compressed air;
所述的二级空气压缩***的第三空气入口与中冷器的第二空气出口连接，中冷器输出的一部分低温一次压缩空气进入二级空气压缩***的第三空气入口，然后经过二级压缩，从二级空气压缩***的第三空气出口输出；The third air inlet of the two-stage air compression system is connected to the second air outlet of the intercooler, and a part of the low-temperature primary compressed air output by the intercooler enters the third air inlet of the two-stage air compression system, and then passes through the second stage. Compression, output from the third air outlet of the secondary air compression system;
其特征在于：在二级空气压缩***的第三空气出口处安装温度传感器，温 度传感器检测二级空气压缩***的第三空气出口排出的空气温度。It is characterized in that: a temperature sensor is installed at the third air outlet of the secondary air compression system, and the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system.
上述的中冷器还输出的另一部分低温一次压缩空气到驱动电机的内部，对驱动电机内部的定子组件和轴承***进行散热。The above-mentioned intercooler also outputs another part of the low-temperature primary compressed air to the inside of the drive motor to dissipate heat to the stator assembly and the bearing system inside the drive motor.
上述的一级空气压缩***、二级空气压缩***都是离心式风机***，包括蜗壳和风轮，风轮与驱动电机的主轴连接。The above-mentioned primary air compression system and secondary air compression system are all centrifugal fan systems, including a volute and a wind wheel, and the wind wheel is connected to the main shaft of the drive motor.
上述所述的中冷器包括壳体、第二空气入口、第二空气出口和热交换装置，热交换装置安装在壳体内，第二空气入口、第二空气出口和空气分支出口分别设置在壳体的底部和顶部，壳体的左侧和右侧分别设有冷却液入口和冷却液出口。The above-mentioned intercooler includes a housing, a second air inlet, a second air outlet and a heat exchange device, the heat exchange device is installed in the housing, and the second air inlet, the second air outlet and the air branch outlet are respectively arranged in the shell The bottom and top of the body, and the left and right sides of the housing are respectively provided with a coolant inlet and a coolant outlet.
上述的中冷器的空气分支出口通过管道与驱动电机表面的空气进气咀连接，然后对驱动电机内部的定子组件和轴承***进行散热，最后从驱动电机表面的空气出气咀排出。The air branch outlet of the above-mentioned intercooler is connected with the air inlet nozzle on the surface of the driving motor through a pipeline, and then the stator assembly and the bearing system inside the driving motor are radiated, and finally discharged from the air outlet nozzle on the surface of the driving motor.
上述的壳体内设有冷却液进液腔室和冷却液出液腔室，冷却液进液腔室与冷却液入口连通，冷却液出液腔室与冷却液出口连通，热交换装置布置在冷却液进液腔室和冷却液出液腔室之间。The above housing is provided with a coolant inlet chamber and a coolant outlet chamber, the coolant inlet chamber communicates with the coolant inlet, the coolant outlet chamber communicates with the coolant outlet, and the heat exchange device is arranged in the cooling Between the liquid inlet chamber and the coolant outlet chamber.
上述的热交换装置包括若干片散热波纹板和带有水道的若干块层板，若干片散热波纹板和若干块层板之间间隔分布，散热波纹板与层板之间形成若干空气流道，第二空气入口与第二空气出口、空气分支出口之间通过空气流道连通，层板的两端分别安装上挡板和下挡板，上挡板与壳体形成冷却液进液腔室，下挡板与壳体形成冷却液出液腔室，冷却液进液腔室和冷却液出液腔室之间通过若干水道连通。The above-mentioned heat exchange device includes a plurality of heat dissipation corrugated plates and several laminates with water channels, the plurality of heat dissipation corrugated plates and several laminates are spaced apart, and a number of air flow channels are formed between the heat dissipation corrugated plates and the laminates. The second air inlet communicates with the second air outlet and the air branch outlet through an air flow channel. The two ends of the laminate are respectively equipped with an upper baffle and a lower baffle, and the upper baffle and the housing form a cooling liquid inlet chamber. The lower baffle and the casing form a cooling liquid outlet chamber, and the cooling liquid inlet chamber and the cooling liquid outlet chamber are communicated through several water channels.
上述的一级空气压缩系的第一空气出口与中冷器的第二空气入口连通；中冷器的第二空气出口通过接驳管道连接到二级空气压缩***的第三空气入口，上述的接驳管道端部设置有安装法兰，壳体的顶部凸出有安装凸台，中冷器的第二空气出口设置在安装凸台的中间，通过接驳管道端部的安装法兰可以快速方便连接到安装凸台上。The first air outlet of the above-mentioned first-stage air compression system communicates with the second air inlet of the intercooler; the second air outlet of the intercooler is connected to the third air inlet of the second-stage air compression system through a connecting pipeline, and the above-mentioned There is a mounting flange at the end of the connecting pipe, and a mounting boss protrudes from the top of the shell. The second air outlet of the intercooler is set in the middle of the mounting boss. Through the mounting flange at the end of the connecting pipe, it can be quickly Easily attaches to mounting bosses.
一种燃料电池***，包括燃料电池电堆模块、燃料电池***控制器、冷却循环***和空气供应***，空气供应***包括过滤器、空压机***和加湿器，空气经过过滤器过滤后，然后由空压机***的加压，随后利用加湿器调节空气湿度，最后输送到燃料电池电堆模块的空气进入口，其特征在于：空压机***是上述所述的具有冷却功能的空压机***，在二级空气压缩***的第三空气出口处安装温度传感器，温度传感器检测二级空气压缩***的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***的第三空气出口的排出空气的温度。A fuel cell system includes a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system, the air supply system includes a filter, an air compressor system and a humidifier, the air is filtered through the filter, and then Pressurized by the air compressor system, then use a humidifier to adjust the air humidity, and finally deliver to the air inlet of the fuel cell stack module, characterized in that: the air compressor system is the above-mentioned air compressor with cooling function system, a temperature sensor is installed at the third air outlet of the secondary air compression system, the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system controller, the fuel cell system controller According to the temperature signal, the coolant flow rate of the cooling circulation system input to the intercooler is controlled to dynamically adjust the cooling capacity, thereby indirectly adjusting the temperature of the discharged air from the third air outlet of the secondary air compression system.
一种燃料电池***的控制方法，燃料电池***采用上述所述的燃料电池***，其特征在于：燃料电池***控制器控制燃料电池电堆模块开始工作时，启动自检流程：A control method for a fuel cell system, wherein the fuel cell system adopts the fuel cell system described above, and is characterized in that: when the fuel cell system controller controls the fuel cell stack module to start working, the self-check process is started:
步骤1：判断温度传感器检测的空气温度信号T是否大于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的增加输入到中冷器的冷却液流量来提高中冷器散热能力，对空气降温，然后进入步骤2；如果否，也进入步骤2；Step 1: Judging whether the air temperature signal T detected by the temperature sensor is greater than the first set temperature T1, if so, the fuel cell system controller controls the cooling cycle system to increase the coolant flow rate input to the intercooler to improve the intercooler cooling capacity of the device, cool down the air, and then go to step 2; if not, also go to step 2;
步骤2：判断温度传感器检测的空气温度信号T是否小于第二设定温度T2，如果是，则燃料电池***控制器根控制冷却循环***的减少输入到中冷器的冷却液流量来降低中冷器散热能力，对空气升温，然后进入步骤3；如果否，也进入步骤3；Step 2: Determine whether the air temperature signal T detected by the temperature sensor is lower than the second set temperature T2, if yes, the fuel cell system controller controls the cooling circulation system to reduce the coolant flow input to the intercooler to reduce the intercooler heat dissipation capacity of the device, heat up the air, and then go to step 3; if not, go to step 3;
步骤3：判断温度传感器检测的空气温度信号T是否大于第二设定温度T2且小于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的维持现有输入到中冷器的冷却液流量，维持现有中冷器的散热能力，燃料电池进入正常工作模式。Step 3: Judging whether the air temperature signal T detected by the temperature sensor is greater than the second set temperature T2 and less than the first set temperature T1, if yes, the fuel cell system controller controls the cooling cycle system to maintain the current input to the center The coolant flow rate of the cooler is maintained to maintain the heat dissipation capacity of the existing intercooler, and the fuel cell enters the normal working mode.
本发明与现有技术相比，具有如下效果：Compared with the prior art, the present invention has the following effects:
1)本发明的方案一是将中冷器、空压机***集成在一起，包括驱动电机、一级空气压缩***、二级空气压缩***和中冷器，一级空气压缩***和二级空气压缩***分别安装在驱动电机的两端并由驱动电机的主轴驱动，在二级空气压缩***的第三空气出口处安装温度传感器，温度传感器检测二级空气压缩***的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***的第三空气出口的排出空气的温度，形成闭环控制，可以有效控制二级空气压缩***的第三空气出口排出的空气温度，适应燃料电池电堆模块的要求，提高***的运行效率和可靠性。1) The first solution of the present invention is to integrate the intercooler and the air compressor system together, including the drive motor, the primary air compression system, the secondary air compression system and the intercooler, the primary air compression system and the secondary air The compression system is respectively installed at both ends of the drive motor and driven by the main shaft of the drive motor. A temperature sensor is installed at the third air outlet of the two-stage air compression system, and the temperature sensor detects the air discharged from the third air outlet of the two-stage air compression system. temperature, and send it to the fuel cell system controller. The fuel cell system controller controls the coolant flow of the cooling cycle system input to the intercooler according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the third stage of the two-stage air compression system. The temperature of the air discharged from the air outlet forms a closed-loop control, which can effectively control the temperature of the air discharged from the third air outlet of the secondary air compression system, adapt to the requirements of the fuel cell stack module, and improve the operating efficiency and reliability of the system.
2)本发明的中冷器还输出的另一部分低温一次压缩空气到驱动电机的内部，对驱动电机内部的定子组件和轴承***进行散热，是驱动电机始终工作在较低的温度下，延长轴承的使用寿命，提高电机工作的可靠性。2) The intercooler of the present invention also outputs another part of the low-temperature primary compressed air to the inside of the drive motor to dissipate heat to the stator assembly and bearing system inside the drive motor, so that the drive motor always works at a lower temperature and extends the bearing The service life of the motor improves the reliability of the motor.
3)本发明的一种燃料电池***，包括燃料电池电堆模块、燃料电池***控制器、冷却循环***和空气供应***，空气供应***包括过滤器、空压机***和加湿器，空气经过过滤器过滤后，然后由空压机***的加压，随后利用加湿器调节空气湿度，最后输送到燃料电池电堆模块的空气进入口，其特征在于：空压机***是上述所述的具有冷却功能的离心式空压机***，在二级空气压缩***的第三空气出口处安装温度传感器，温度传感器检测二级空气压缩***的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***的第三空气出口的排出空气的温度,它集成高，形成模块化，可以省略传统燃料电池独立一个中冷器部件，体积小，容易布局。3) A fuel cell system of the present invention includes a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system, the air supply system includes a filter, an air compressor system and a humidifier, and the air is filtered filter, then pressurized by the air compressor system, and then use the humidifier to adjust the air humidity, and finally transport it to the air inlet of the fuel cell stack module. It is characterized in that: the air compressor system is the above-mentioned cooling Functional centrifugal air compressor system, install a temperature sensor at the third air outlet of the secondary air compression system, the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system for control The controller of the fuel cell system controls the coolant flow of the cooling circulation system input to the intercooler according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the temperature of the exhaust air from the third air outlet of the secondary air compression system. The integration is high, forming modularization, which can omit the traditional fuel cell and an independent intercooler component, which is small in size and easy to layout.
4)本发明的其它优点在实施例部分展开详细描述。4) Other advantages of the present invention are described in detail in the Examples section.
附图说明：Description of drawings:
图1是本发明实施例一的方框原理图；Fig. 1 is the block schematic diagram of embodiment one of the present invention;
图2是本发明实施例一提供的一个角度的立体图；Fig. 2 is a perspective view of an angle provided by Embodiment 1 of the present invention;
图3是本发明实施例一提供的另一个角度的立体图；Fig. 3 is a perspective view from another angle provided by Embodiment 1 of the present invention;
图4是本发明实施例一提供的一个角度的分解图。Fig. 4 is an exploded view of an angle provided by Embodiment 1 of the present invention.
图5是本发明实施例一提供的另一个角度的分解图；Fig. 5 is an exploded view from another angle provided by Embodiment 1 of the present invention;
图6是本发明实施例一提供的中冷器的立体图；Fig. 6 is a perspective view of the intercooler provided by Embodiment 1 of the present invention;
图7是本发明实施例一提供的中冷器的结构剖视图；Fig. 7 is a structural cross-sectional view of the intercooler provided by Embodiment 1 of the present invention;
图8是本发明实施例一提供的热交换装置的立体图；Fig. 8 is a perspective view of the heat exchange device provided by Embodiment 1 of the present invention;
图9是本发明实施例二的方框原理图；Fig. 9 is a block principle diagram of Embodiment 2 of the present invention;
图10是本发明实施例二的闭环控制的原理图；Fig. 10 is a schematic diagram of the closed-loop control of Embodiment 2 of the present invention;
图11是本发明实施例三的流程图。Fig. 11 is a flow chart of Embodiment 3 of the present invention.
具体实施方式：Detailed ways:
下面通过具体实施例并结合附图对本发明作进一步详细的描述。The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.
实施例一：Embodiment one:
如图1至图8所示，本实施例提供的具有冷却功能的空压机***，包括驱动电机1、一级空气压缩***2、二级空气压缩***3和中冷器4，一级空气压缩***2和二级空气压缩***3分别安装在驱动电机1的两端并由驱动电机1的主轴驱动，其中：一级空气压缩***2具有第一空气入口21和第一空气出口22；中冷器4具有第二空气入口44和第二空气出口46；二级空气压缩***3具有第三空气入口和第三空气出口31。As shown in Figures 1 to 8, the air compressor system with cooling function provided by this embodiment includes a drive motor 1, a primary air compression system 2, a secondary air compression system 3 and an intercooler 4, and the primary air The compression system 2 and the secondary air compression system 3 are respectively installed at both ends of the drive motor 1 and driven by the main shaft of the drive motor 1, wherein: the primary air compression system 2 has a first air inlet 21 and a first air outlet 22; The cooler 4 has a second air inlet 44 and a second air outlet 46 ; the secondary air compression system 3 has a third air inlet and a third air outlet 31 .
一级空气压缩***1的第一空气入口21对空气进行一级压缩然后输出高温一次压缩空气；The first air inlet 21 of the primary air compression system 1 performs primary compression on the air and then outputs high-temperature primary compressed air;
所述的中冷器4的第二空气入口44连接在一级空气压缩***2的第一空气出口22，从一级空气压缩***2输出的高温一次压缩空气经过中冷器4的冷却输出低温一次压缩空气；The second air inlet 44 of the intercooler 4 is connected to the first air outlet 22 of the primary air compression system 2, and the high-temperature primary compressed air output from the primary air compression system 2 passes through the cooling of the intercooler 4 and outputs a low temperature primary compressed air;
所述的二级空气压缩***3的第三空气入口与中冷器4的第二空气出口46连接，中冷器4输出的一部分低温一次压缩空气进入二级空气压缩***3的第 三空气入口，然后经过二级压缩，从二级空气压缩***3的第三空气出口31输出；The third air inlet of the secondary air compression system 3 is connected to the second air outlet 46 of the intercooler 4, and a part of the low-temperature primary compressed air output by the intercooler 4 enters the third air inlet of the secondary air compression system 3 , and then through two-stage compression, output from the third air outlet 31 of the two-stage air compression system 3;
其特征在于：在二级空气压缩***3的第三空气出口31处安装温度传感器32，温度传感器32检测二级空气压缩***3的第三空气出口排出的空气温度。It is characterized in that a temperature sensor 32 is installed at the third air outlet 31 of the secondary air compression system 3 , and the temperature sensor 32 detects the temperature of the air discharged from the third air outlet of the secondary air compression system 3 .
本发明在二级空气压缩***的第三空气出口处安装温度传感器，温度传感器检测二级空气压缩***的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***的第三空气出口的排出空气的温度，形成闭环控制，可以有效控制二级空气压缩***的第三空气出口排出的空气温度，适应燃料电池电堆模块的要求，提高***的运行效率和可靠性。The present invention installs a temperature sensor at the third air outlet of the secondary air compression system, and the temperature sensor detects the temperature of the air discharged from the third air outlet of the secondary air compression system, and sends it to the fuel cell system controller, and the fuel cell system controller According to the temperature signal, the coolant flow rate of the cooling circulation system input to the intercooler is controlled to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the temperature of the discharged air from the third air outlet of the secondary air compression system, forming a closed-loop control, which can effectively control the second stage. The temperature of the air discharged from the third air outlet of the stage air compression system meets the requirements of the fuel cell stack module and improves the operating efficiency and reliability of the system.
上述的中冷器4还输出的另一部分低温一次压缩空气到驱动电机1的内部，对驱动电机1内部的定子组件和轴承***进行散热，是驱动电机1始终工作在较低的温度下，延长轴承的使用寿命，提高电机工作的可靠性。The above-mentioned intercooler 4 also outputs another part of the low-temperature primary compressed air to the inside of the drive motor 1 to dissipate heat to the stator assembly and bearing system inside the drive motor 1, so that the drive motor 1 always works at a lower temperature and prolongs the life of the drive motor 1. The service life of the bearing improves the reliability of the motor.
如图1至图8所示，中冷器4安装在驱动电机1的侧面，空气从空压机第一空气入口21进入一级空气压缩系2，然后从一级空气压缩系2的第一空气出口22排出，形成高温一次压缩空气。As shown in Figures 1 to 8, the intercooler 4 is installed on the side of the drive motor 1, and the air enters the primary air compression system 2 from the first air inlet 21 of the air compressor, and then flows from the first air compression system 2 of the primary air compressor. The air outlet 22 is discharged to form high-temperature primary compressed air.
上述一级空气压缩系2的第一空气出口22与中冷器4的第二空气入口44连通；中冷器4的第二空气出口46通过接驳管道33连接到二级空气压缩***3的第三空气入口。The first air outlet 22 of the primary air compression system 2 communicates with the second air inlet 44 of the intercooler 4; the second air outlet 46 of the intercooler 4 is connected to the secondary air compression system 3 through the connecting pipe 33 Third air inlet.
上述的接驳管道33端部设置有安装法兰331，壳体40的顶部凸出有安装凸台45，中冷器4的第二空气出口46设置在安装凸台45的中间，通过接驳管道33端部的安装法兰331可以快速方便连接到安装凸台45上。The above-mentioned connecting pipe 33 end is provided with a mounting flange 331, and the top of the housing 40 protrudes from a mounting boss 45, and the second air outlet 46 of the intercooler 4 is arranged in the middle of the mounting boss 45. The mounting flange 331 at the end of the pipe 33 can be quickly and conveniently connected to the mounting boss 45 .
上述的二级空气压缩***3的第三空气出口31处安装温度传感器32，温度传感器32检测二级空气压缩***3的第三空气出口31排出的空气温度，第三空气出口31的尾部管壁上挖出安装通孔311,温度传感器32嵌入安装在安装通 孔311上，结构简单制造容易。The temperature sensor 32 is installed at the third air outlet 31 of the above-mentioned secondary air compression system 3, and the temperature sensor 32 detects the temperature of the air discharged from the third air outlet 31 of the secondary air compression system 3. The tail pipe wall of the third air outlet 31 The installation through hole 311 is dug out above, and the temperature sensor 32 is embedded and installed on the installation through hole 311, which has a simple structure and is easy to manufacture.
所述的中冷器4包括壳体40、第二空气入口44、第二空气出口46和热交换装置6，热交换装置6安装在壳体40内，第二空气入口44、第二空气出口46和空气分支出口43分别设置在壳体40的底部和顶部，壳体40的左侧和右侧分别设有冷却液入口41和冷却液出口42，结构简单，布局合理。The intercooler 4 includes a housing 40, a second air inlet 44, a second air outlet 46 and a heat exchange device 6, the heat exchange device 6 is installed in the housing 40, the second air inlet 44, the second air outlet 46 and air branch outlet 43 are respectively arranged at the bottom and top of the casing 40, and the left side and the right side of the casing 40 are respectively provided with a cooling liquid inlet 41 and a cooling liquid outlet 42, the structure is simple and the layout is reasonable.
上述的壳体40内设有冷却液进液腔室47和冷却液出液腔室48，冷却液进液腔室47与冷却液入口41连通，冷却液出液腔室48与冷却液出口42连通，热交换装置6布置在冷却液进液腔室47和冷却液出液腔室48之间，结构简单布局合理。The above housing 40 is provided with a coolant inlet chamber 47 and a coolant outlet chamber 48, the coolant inlet chamber 47 communicates with the coolant inlet 41, the coolant outlet chamber 48 communicates with the coolant outlet 42 Communication, the heat exchange device 6 is arranged between the cooling liquid inlet chamber 47 and the cooling liquid outlet chamber 48, and the structure is simple and the layout is reasonable.
上述的热交换装置6包括若干片散热波纹板64和带有水道631的若干块层板63，若干片散热波纹板64和若干块层板63之间间隔分布，散热波纹板64与层板63之间形成若干空气流道65，第二空气入口44与第二空气出口46、空气分支出口43之间通过空气流道65连通，冷却液进液腔室47和冷却液出液腔室48之间通过若干水道631连通。层板63的两端分别安装上挡板61和下挡板62，上挡板61与壳体40形成冷却液进液腔室47，下挡板62与壳体40形成冷却液出液腔室48。结构就凑，安装方便，制造容易。The above-mentioned heat exchange device 6 includes several sheets of heat dissipation corrugated plates 64 and several laminates 63 with water channels 631, and the intervals between several sheets of heat dissipation corrugated plates 64 and several laminates 63 are distributed, and the heat dissipation corrugated plates 64 and laminates 63 Several air channels 65 are formed between them, the second air inlet 44 communicates with the second air outlet 46 and the air branch outlet 43 through the air channels 65, the cooling liquid inlet chamber 47 and the cooling liquid outlet chamber 48 They are connected through several waterways 631. The upper baffle 61 and the lower baffle 62 are respectively installed at both ends of the laminate 63, the upper baffle 61 and the housing 40 form a cooling liquid inlet chamber 47, and the lower baffle 62 and the housing 40 form a cooling liquid outlet chamber 48. The structure is compact, the installation is convenient, and the manufacture is easy.
中冷器4还输出的另一部分低温一次压缩空气到驱动电机1的内部，对驱动电机1内部的定子组件和轴承***进行散热，中冷器4的空气分支出口43通过管道5与驱动电机1表面的空气进气咀11连接，然后对驱动电机1内部的定子组件和轴承***进行散热，最后从驱动电机1表面的空气出气咀12排出。充分利用中冷器4的冷却能力对驱动电机1冷却，确保工作的可靠性，延长电机工作寿命。Another part of the low-temperature primary compressed air output by the intercooler 4 is sent to the inside of the drive motor 1 to dissipate heat to the stator assembly and the bearing system inside the drive motor 1, and the air branch outlet 43 of the intercooler 4 is connected to the drive motor 1 through the pipeline The air inlet nozzle 11 on the surface is connected, then the stator assembly and the bearing system inside the drive motor 1 are radiated, and finally discharged from the air outlet nozzle 12 on the surface of the drive motor 1 . Make full use of the cooling capacity of the intercooler 4 to cool the driving motor 1 to ensure the reliability of the work and prolong the working life of the motor.
上述的一级空气压缩***2、二级空气压缩***3都是离心式风机***，包括蜗壳和风轮，风轮与驱动电机的主轴连接。The above-mentioned primary air compression system 2 and secondary air compression system 3 are all centrifugal fan systems, including a volute and a wind wheel, and the wind wheel is connected to the main shaft of the driving motor.
实施例二：Embodiment two:
如图9、图10所示，本实施例是一种燃料电池***，包括燃料电池电堆模块、燃料电池***控制器、冷却循环***和空气供应***，空气供应***包括过滤器、空压机***和加湿器，空气经过过滤器过滤后，然后由空压机***的加压，随后利用加湿器调节空气湿度，最后输送到燃料电池电堆模块的空气进入口，其特征在于：空压机***是实施例一所述的具有冷却功能的空压机***，在二级空气压缩***3的第三空气出口31处安装温度传感器32，温度传感器32检测二级空气压缩***3的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器4的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***3的第三空气出口的排出空气的温度。它形成闭环控制，可以有效控制二级空气压缩***的第三空气出口排出的空气温度，适应燃料电池电堆模块的要求，提高***的运行效率和可靠性。它集成高，形成模块化，可以省略传统燃料电池独立一个中冷器部件，体积小，容易布局。As shown in Figure 9 and Figure 10, this embodiment is a fuel cell system, including a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system, the air supply system includes a filter, an air compressor System and humidifier, the air is filtered by the filter, then pressurized by the air compressor system, and then the humidifier is used to adjust the air humidity, and finally delivered to the air inlet of the fuel cell stack module, which is characterized in that: the air compressor The system is the air compressor system with cooling function described in Embodiment 1. A temperature sensor 32 is installed at the third air outlet 31 of the secondary air compression system 3, and the temperature sensor 32 detects the third air of the secondary air compression system 3. The temperature of the air discharged from the outlet is sent to the controller of the fuel cell system. The controller of the fuel cell system controls the cooling liquid flow rate of the cooling cycle system input to the intercooler 4 according to the temperature signal to dynamically adjust the heat dissipation capacity, thereby indirectly adjusting the secondary air The temperature of the discharge air from the third air outlet of the compression system 3. It forms a closed-loop control, which can effectively control the temperature of the air discharged from the third air outlet of the secondary air compression system, adapt to the requirements of the fuel cell stack module, and improve the operating efficiency and reliability of the system. It is highly integrated and modularized, which can omit the traditional fuel cell and an independent intercooler component. It is small in size and easy to layout.
实施例三：Embodiment three:
如图11所示，本实施例是一种燃料电池***的控制方法，燃料电池***采用实施例二所述的燃料电池***，其特征在于：燃料电池***控制器控制燃料电池电堆模块开始工作时，启动自检流程：As shown in Figure 11, this embodiment is a control method for a fuel cell system, the fuel cell system adopts the fuel cell system described in Embodiment 2, and the feature is that the fuel cell system controller controls the fuel cell stack module to start working , start the self-test process:
步骤1：判断温度传感器32检测的空气温度信号T是否大于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的增加输入到中冷器4的冷却液流量来提高中冷器散热能力，对空气降温，然后进入步骤2；如果否，也进入步骤2；Step 1: Judging whether the air temperature signal T detected by the temperature sensor 32 is greater than the first set temperature T1, if so, the fuel cell system controller controls the cooling circulation system to increase the coolant flow rate input to the intercooler 4 to increase The heat dissipation capacity of the intercooler, cool down the air, and then go to step 2; if not, go to step 2;
步骤2：判断温度传感器32检测的空气温度信号T是否小于第二设定温度T2，如果是，则燃料电池***控制器根控制冷却循环***的减少输入到中冷器4的冷却液流量来降低中冷器散热能力，对空气升温，然后进入步骤3；如果否， 也进入步骤3；Step 2: Judging whether the air temperature signal T detected by the temperature sensor 32 is lower than the second set temperature T2, if yes, the fuel cell system controller controls the cooling circulation system to reduce the coolant flow rate input to the intercooler 4 to reduce Intercooler heat dissipation capacity, heat up the air, and then go to step 3; if not, also go to step 3;
步骤3：判断温度传感器32检测的空气温度信号T是否大于第二设定温度T2且小于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的维持现有输入到中冷器4的冷却液流量，维持现有中冷器4的散热能力，燃料电池进入正常工作模式。Step 3: Judging whether the air temperature signal T detected by the temperature sensor 32 is greater than the second set temperature T2 and less than the first set temperature T1, if yes, the fuel cell system controller controls the cooling cycle system to maintain the current input to The coolant flow rate of the intercooler 4 maintains the heat dissipation capacity of the existing intercooler 4, and the fuel cell enters a normal working mode.
可以有效保证在启动或者运行过程中供应给燃料电池电堆模块的空气温度，使燃料电池电堆模块工作更高效可靠。It can effectively guarantee the temperature of the air supplied to the fuel cell stack module during start-up or operation, so that the fuel cell stack module can work more efficiently and reliably.
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本发明的保护范围之内。The above embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent All replacement methods are included within the protection scope of the present invention.

Claims (10)

  1. 具有冷却功能的空压机***，包括驱动电机(1)、一级空气压缩***(2)、二级空气压缩***(3)和中冷器(4)，一级空气压缩***(2)和二级空气压缩***(3)分别安装在驱动电机(1)的两端并由驱动电机(1)的主轴驱动，其中：Air compressor system with cooling function, including drive motor (1), primary air compression system (2), secondary air compression system (3) and intercooler (4), primary air compression system (2) and The two-stage air compression system (3) is respectively installed at both ends of the driving motor (1) and driven by the main shaft of the driving motor (1), wherein:
    一级空气压缩***(1)的第一空气入口(21)对空气进行一级压缩然后输出高温一次压缩空气；The first air inlet (21) of the primary air compression system (1) performs primary compression on the air and then outputs high-temperature primary compressed air;
    所述的中冷器(4)的第二空气入口(44)连接在一级空气压缩***(2)的第一空气出口(22)，从一级空气压缩***(2)输出的高温一次压缩空气经过中冷器(4)的冷却输出低温一次压缩空气；The second air inlet (44) of the intercooler (4) is connected to the first air outlet (22) of the primary air compression system (2), and the high-temperature primary compression output from the primary air compression system (2) The air is cooled by the intercooler (4) to output low-temperature primary compressed air;
    所述的二级空气压缩***(3)的第三空气入口与中冷器(4)的第二空气出口(46)连接，中冷器(4)输出的一部分低温一次压缩空气进入二级空气压缩***(3)的第三空气入口，然后经过二级压缩，从二级空气压缩***(3)的第三空气出口(31)输出；The third air inlet of the secondary air compression system (3) is connected to the second air outlet (46) of the intercooler (4), and a part of the low-temperature primary compressed air output by the intercooler (4) enters the secondary air The third air inlet of the compression system (3), then through the secondary compression, is output from the third air outlet (31) of the secondary air compression system (3);
    其特征在于：在二级空气压缩***(3)的第三空气出口(31)处安装温度传感器(32)，温度传感器(32)检测二级空气压缩***(3)的第三空气出口排出的空气温度。It is characterized in that: a temperature sensor (32) is installed at the third air outlet (31) of the secondary air compression system (3), and the temperature sensor (32) detects the temperature discharged from the third air outlet of the secondary air compression system (3). air temperature.
  2. 根据权利要求1所述的具有冷却功能的空压机***，其特征在于：中冷器(4)还输出的另一部分低温一次压缩空气到驱动电机(1)的内部，对驱动电机(1)内部的定子组件和轴承***进行散热。The air compressor system with cooling function according to claim 1, characterized in that: the intercooler (4) also outputs another part of the low-temperature primary compressed air to the inside of the drive motor (1), and the drive motor (1) The internal stator assembly and bearing system dissipate heat.
  3. 根据权利要求2所述的具有冷却功能的空压机***，其特征在于：一级空气压缩***(2)、二级空气压缩***(3)都是离心式风机***，包括蜗壳和风轮，风轮与驱动电机(1)的主轴连接。The air compressor system with cooling function according to claim 2, characterized in that: the primary air compression system (2) and the secondary air compression system (3) are all centrifugal fan systems, including a volute and a wind wheel, The wind wheel is connected with the main shaft of the drive motor (1).
  4. 根据权利要求1或2或3所述的具有冷却功能的空压机***，其特征在于：所述的中冷器(4)包括壳体(40)、第二空气入口(44)、第二空气出口(46)和热交换装置(6)，热交换装置(6)安装在壳体(40)内，第二空气 入口(44)、第二空气出口(46)和空气分支出口(43)分别设置在壳体(40)的底部和顶部，壳体(40)的左侧和右侧分别设有冷却液入口(41)和冷却液出口(42)。The air compressor system with cooling function according to claim 1, 2 or 3, characterized in that: the intercooler (4) comprises a housing (40), a second air inlet (44), a second Air outlet (46) and heat exchange device (6), heat exchange device (6) is installed in the housing (40), second air inlet (44), second air outlet (46) and air branch outlet (43) They are respectively arranged on the bottom and top of the housing (40), and the left and right sides of the housing (40) are respectively provided with a cooling liquid inlet (41) and a cooling liquid outlet (42).
  5. 根据权利要求4所述的具有冷却功能的空压机***，其特征在于：中冷器(4)的空气分支出口(43)通过管道(5)与驱动电机(1)表面的空气进气咀(11)连接，然后对驱动电机(1)内部的定子组件和轴承***进行散热，最后从驱动电机(1)表面的空气出气咀(12)排出。The air compressor system with cooling function according to claim 4, characterized in that: the air branch outlet (43) of the intercooler (4) passes through the pipe (5) and the air inlet nozzle on the surface of the drive motor (1) (11) connection, then the stator assembly and the bearing system inside the drive motor (1) are radiated, and finally discharged from the air outlet nozzle (12) on the drive motor (1) surface.
  6. 根据权利要求5所述的具有冷却功能的空压机***，其特征在于：壳体(40)内设有冷却液进液腔室(47)和冷却液出液腔室(48)，冷却液进液腔室(47)与冷却液入口(41)连通，冷却液出液腔室(48)与冷却液出口(42)连通，热交换装置(6)布置在冷却液进液腔室(47)和冷却液出液腔室(48)之间。The air compressor system with cooling function according to claim 5, characterized in that: the casing (40) is provided with a cooling liquid inlet chamber (47) and a cooling liquid outlet chamber (48), and the cooling liquid The liquid inlet chamber (47) communicates with the coolant inlet (41), the coolant outlet chamber (48) communicates with the coolant outlet (42), and the heat exchange device (6) is arranged in the coolant inlet chamber (47 ) and the coolant outlet chamber (48).
  7. 根据权利要求6所述的具有冷却功能的空压机***，其特征在于：热交换装置(6)包括若干片散热波纹板(64)和带有水道(631)的若干块层板(63)，若干片散热波纹板(64)和若干块层板(63)之间间隔分布，散热波纹板(64)与层板(63)之间形成若干空气流道(65)，第二空气入口(44)与第二空气出口(46)、空气分支出口(43)之间通过空气流道(65)连通，层板(63)的两端分别安装上挡板(61)和下挡板(62)，上挡板(61)与壳体(40)形成冷却液进液腔室(47)，下挡板(62)与壳体(40)形成冷却液出液腔室(48)，冷却液进液腔室(47)和冷却液出液腔室(48)之间通过若干水道(631)连通。The air compressor system with cooling function according to claim 6, characterized in that: the heat exchange device (6) includes several radiating corrugated plates (64) and several laminates (63) with water channels (631) , some heat dissipation corrugated plates (64) and several laminates (63) are distributed at intervals, some air flow passages (65) are formed between the heat dissipation corrugated plates (64) and the laminates (63), and the second air inlet ( 44) is communicated with the second air outlet (46) and the air branch outlet (43) through the air flow channel (65), and the two ends of the laminate (63) are respectively equipped with an upper baffle (61) and a lower baffle (62 ), the upper baffle (61) and the housing (40) form a coolant inlet chamber (47), the lower baffle (62) and the housing (40) form a coolant outlet chamber (48), and the coolant The liquid inlet chamber (47) is communicated with the cooling liquid outlet chamber (48) through several water channels (631).
  8. 根据权利要求7所述的具有冷却功能的空压机***，其特征在于：一级空气压缩系(2)的第一空气出口(22)与中冷器(4)的第二空气入口(44)连通；中冷器(4)的第二空气出口(46)通过接驳管道(33)连接到二级空气压缩***(3)的第三空气入口，上述的接驳管道(33)端部设置有安装法兰(331)，壳体(40)的顶部凸出有安装凸台(45)，中冷器(4)的第二空气出口(46)设置在安装凸台(45)的中间，通过接驳管道(33)端部的安装法兰(331)可以快速方便连接到安装凸台(45)上。The air compressor system with cooling function according to claim 7, characterized in that: the first air outlet (22) of the primary air compression system (2) and the second air inlet (44) of the intercooler (4) ) is communicated; the second air outlet (46) of the intercooler (4) is connected to the third air inlet of the secondary air compression system (3) through the connecting pipe (33), and the above-mentioned connecting pipe (33) end A mounting flange (331) is provided, a mounting boss (45) protrudes from the top of the casing (40), and the second air outlet (46) of the intercooler (4) is arranged in the middle of the mounting boss (45) , can be quickly and conveniently connected to the installation boss (45) through the installation flange (331) at the end of the connecting pipe (33).
  9. 一种燃料电池***，包括燃料电池电堆模块、燃料电池***控制器、冷却循环***和空气供应***，空气供应***包括过滤器、空压机***和加湿器，空气经过过滤器过滤后，然后由空压机***的加压，随后利用加湿器调节空气湿度，最后输送到燃料电池电堆模块的空气进入口，其特征在于：空压机***是权利要求1至8任意一项所述的具有冷却功能的空压机***，在二级空气压缩***(3)的第三空气出口(31)处安装温度传感器(32)，温度传感器(32)检测二级空气压缩***(3)的第三空气出口排出的空气温度，并送到燃料电池***控制器，燃料电池***控制器根据温度信号控制冷却循环***的输入到中冷器(4)的冷却液流量来动态调节散热能力，从而间接调节二级空气压缩***(3)的第三空气出口的排出空气的温度。A fuel cell system includes a fuel cell stack module, a fuel cell system controller, a cooling cycle system and an air supply system, the air supply system includes a filter, an air compressor system and a humidifier, the air is filtered through the filter, and then Pressurized by the air compressor system, then use a humidifier to adjust the air humidity, and finally deliver to the air inlet of the fuel cell stack module, characterized in that: the air compressor system is the one described in any one of claims 1 to 8 In the air compressor system with cooling function, a temperature sensor (32) is installed at the third air outlet (31) of the secondary air compression system (3), and the temperature sensor (32) detects the second air temperature of the secondary air compression system (3). The temperature of the air discharged from the three air outlets is sent to the controller of the fuel cell system, and the controller of the fuel cell system controls the cooling liquid flow rate of the cooling circulation system input to the intercooler (4) according to the temperature signal to dynamically adjust the heat dissipation capacity, thus indirectly Regulates the temperature of the discharge air from the third air outlet of the secondary air compression system (3).
  10. 一种燃料电池***的控制方法，燃料电池***采用权利要求9所述的燃料电池***，其特征在于：燃料电池***控制器控制燃料电池电堆模块开始工作时，启动自检流程：A control method for a fuel cell system, the fuel cell system adopts the fuel cell system according to claim 9, characterized in that: when the fuel cell system controller controls the fuel cell stack module to start working, start the self-inspection process:
    步骤1：判断温度传感器(32)检测的空气温度信号T是否大于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的增加输入到中冷器(4)的冷却液流量来提高中冷器散热能力，对空气降温，然后进入步骤2；如果否，也进入步骤2；Step 1: Judging whether the air temperature signal T detected by the temperature sensor (32) is greater than the first set temperature T1, if so, the fuel cell system controller controls the increase of the cooling cycle system and inputs it to the cooling of the intercooler (4) Liquid flow rate to improve the heat dissipation capacity of the intercooler, cool the air, and then go to step 2; if not, go to step 2;
    步骤2：判断温度传感器(32)检测的空气温度信号T是否小于第二设定温度T2，如果是，则燃料电池***控制器根控制冷却循环***的减少输入到中冷器(4)的冷却液流量来降低中冷器散热能力，对空气升温，然后进入步骤3；如果否，也进入步骤3；Step 2: Judging whether the air temperature signal T detected by the temperature sensor (32) is less than the second set temperature T2, if yes, the fuel cell system controller controls the reduction of the cooling cycle system input to the cooling of the intercooler (4) Liquid flow to reduce the heat dissipation capacity of the intercooler, heat up the air, and then go to step 3; if not, go to step 3;
    步骤3：判断温度传感器(32)检测的空气温度信号T是否大于第二设定温度T2且小于第一设定温度T1，如果是，则燃料电池***控制器根控制冷却循环***的维持现有输入到中冷器(4)的冷却液流量，维持现有中冷器(4)的散热能力，燃料电池进入正常工作模式。Step 3: Judging whether the air temperature signal T detected by the temperature sensor (32) is greater than the second set temperature T2 and less than the first set temperature T1, if yes, the fuel cell system controller controls the cooling cycle system to maintain the existing The coolant flow rate input to the intercooler (4) maintains the heat dissipation capacity of the existing intercooler (4), and the fuel cell enters a normal working mode.
PCT/CN2022/079841 2021-09-10 2022-03-09 Air compressor system with cooling function, fuel cell system, and control method WO2023035567A1 (en)

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