CN116387571A - Air temperature control device and control method for fuel cell system - Google Patents

Air temperature control device and control method for fuel cell system Download PDF

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Publication number
CN116387571A
CN116387571A CN202310363629.1A CN202310363629A CN116387571A CN 116387571 A CN116387571 A CN 116387571A CN 202310363629 A CN202310363629 A CN 202310363629A CN 116387571 A CN116387571 A CN 116387571A
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Prior art keywords
air
temperature
fuel cell
cell system
control device
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CN202310363629.1A
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Chinese (zh)
Inventor
张鑫
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Shenzhen Hydrogen Fuel Cell Technology Co Ltd
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Shenzhen Hydrogen Fuel Cell Technology Co Ltd
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Priority to CN202310363629.1A priority Critical patent/CN116387571A/en
Publication of CN116387571A publication Critical patent/CN116387571A/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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701—Temperature
    • H01M8/04708—Temperature of fuel cell reactants
    • 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
    • H01M8/04029—Heat exchange using liquids
    • 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
    • H01M8/04037—Electrical heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04335—Temperature; Ambient temperature of cathode reactants at the inlet or inside the 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04664—Failure or abnormal function
    • H01M8/04679—Failure or abnormal function of fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)

Abstract

The invention is suitable for the technical field of fuel cells, and provides an air temperature control device of a fuel cell system, which comprises an air filter, an air compressor, an intercooler cooling water path, a steam-water separator and a pile unit; the air filter is connected with the air compressor, the air compressor is connected with the intercooler cooling water channel, and the steam-water separator is respectively connected with the intercooler cooling water channel and the electric pile unit; a first temperature and pressure integrated sensor is arranged between the air compressor and the intercooler cooling waterway, and a second temperature and pressure integrated sensor is arranged between the intercooler cooling waterway and the steam-water separator. The invention also provides a control method of the air temperature control device of the fuel cell system. According to the method, the air temperature of the reactor can be independently regulated without being influenced by the air compression ratio and the air flow, so that the fluctuation amplitude and the fluctuation frequency of the air temperature of the reactor can be effectively reduced, and the normal electrochemical reaction inside the reactor and the stable operation of the battery can be ensured.

Description

Air temperature control device and control method for fuel cell system
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to an air temperature control device and an air temperature control method of a fuel cell system.
Background
The fuel cell has long endurance mileage and high output power, and the used hydrogen energy is also an important direction of environment protection and emission reduction development and is often applied to the high-power field of engineering vehicles. The fuel cell forklift replaces the traditional internal combustion forklift with the advantages of cleanliness, lower cost and higher efficiency, and plays a leading role in the scenes of factory heavy object transportation, logistics center transportation, warehouse goods loading and unloading and the like.
The air temperature of the fuel cell system of the existing forklift is greatly influenced by the air compression ratio and the air flow, and if the air temperature of the fuel cell system is too high, the humidity inside the fuel cell stack is easily insufficient; if the temperature of the air entering the stack is too low, it may result in a decrease in activity inside the fuel cell stack. The non-constant temperature of the in-stack air seriously affects the electrochemical reaction inside the stack, thereby affecting the external power output of the fuel cell system and the stable operation of the forklift. At present, the existing forklift fuel cell system lacks a component for adjusting the temperature of air entering a pile, the temperature fluctuation of the air entering the pile is large, and the fluctuation is frequent, so that the normal electrochemical reaction inside the pile and the stable operation of the cell are seriously affected.
Disclosure of Invention
The embodiment of the invention provides an air temperature control device and an air temperature control method of a fuel cell system, which aim to solve the problems that the existing forklift fuel cell system lacks a component for adjusting the temperature of air entering a stack, the temperature fluctuation of the air entering the stack is large, the fluctuation is frequent, the normal electrochemical reaction inside the stack and the stable operation of a cell are seriously affected, and the like.
In one aspect, an embodiment of the present invention provides an air temperature control apparatus for a fuel cell system, including an air cleaner, an air compressor, an intercooler cooling water path, a steam-water separator, and a pile unit; the air filter is connected with the air compressor, the air compressor is connected with the intercooler cooling water channel, and the steam-water separator is respectively connected with the intercooler cooling water channel and the electric pile unit;
a first temperature and pressure integrated sensor is arranged between the air compressor and the intercooler cooling waterway, and a second temperature and pressure integrated sensor is arranged between the intercooler cooling waterway and the steam-water separator.
As a preferred embodiment, the intercooler cooling waterway comprises an intercooler, a radiator and a PTC electric heating assembly, wherein the radiator is respectively connected with the intercooler and the PTC electric heating assembly, and the PTC electric heating assembly is connected with the intercooler; and the intercooler is respectively connected with the air compressor and the steam-water separator.
As a preferred embodiment, a water pump is arranged between the PTC electric heating assembly and the intercooler, and the water pump is respectively connected with the PTC electric heating assembly and the intercooler.
As a preferred embodiment, an air flow meter is provided between the air cleaner and the air compressor, and the air flow meter is connected to the air cleaner and the air compressor, respectively.
As a preferred embodiment, the air temperature control device of the fuel cell system further includes an air back pressure valve connected to the steam-water separator.
As a preferred embodiment, the steam-water separator is provided with a first separation pipe and a second separation pipe, an air inlet of the first separation pipe is connected with the second temperature-pressure integrated sensor, and an air outlet of the first separation pipe is connected with an air inlet of the pile unit; and the air inlet of the second separation pipe is connected with the air outlet of the electric pile unit, and the air outlet of the second separation pipe is connected with the air back pressure valve.
As a preferred embodiment, the heat sink is a radiator fan.
On the other hand, the embodiment of the invention also provides a control method of the air temperature control device of the fuel cell system, which is suitable for the fuel cell system and comprises the following steps:
when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air of the fuel cell system is abnormal, the rotating speed of the water pump of the air temperature control device is regulated until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches a set temperature range;
the abnormality includes the temperature being higher than the set temperature range or the temperature being lower than the set temperature range.
As a preferred embodiment, when the temperature is higher than the set temperature range, the specific operation steps of the control method of the air temperature control device of the fuel cell system are as follows: when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air is higher than a set value range, the rotating speed of the water pump and the rotating speed of the radiator are regulated simultaneously until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches the set temperature range.
As a preferred embodiment, when the temperature is lower than the set temperature range, the specific operation steps of the control method of the air temperature control device of the fuel cell system are as follows: when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air is lower than a set value range, the PTC heating assembly is started to heat the stack inlet air until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches the set temperature range while the rotating speed of the water pump is regulated.
Compared with the prior art, the intercooler cooling waterway is arranged, when the temperature of the air entering the stack is higher than the set temperature range, the rotating speed of the water pump and the rotating speed of the radiator are regulated, and the high Wen Jindui air is cooled; when the temperature of the air entering the pile is lower than the set temperature range, the rotating speed of the water pump and the PTC electric heating gear are regulated, and the low-temperature air is heated. According to the method and the device, the temperature of the air entering the pile can be independently regulated under the condition that the air compression ratio and the air flow are not influenced, so that the fluctuation amplitude and the fluctuation frequency of the temperature of the air entering the pile are effectively reduced, and the normal electrochemical reaction inside the pile and the stable operation of the battery can be ensured.
Drawings
Fig. 1 is a schematic structural view of an air temperature control device of a fuel cell system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method for performing temperature control using the air temperature control device of the fuel cell system of fig. 1 according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings and specific embodiments, in which it is shown, however, in an effort to illustrate some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top, bottom … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
At present, the existing forklift fuel cell system lacks a component for adjusting the temperature of air entering a pile, the temperature fluctuation of the air entering the pile is large, and the fluctuation is frequent, so that the normal electrochemical reaction inside the pile and the stable operation of the cell are seriously affected. Based on this, the present invention provides an air temperature control device and a control method for a fuel cell system to solve the above-mentioned technical problems.
Specifically, in one aspect, as shown in fig. 1, an embodiment of the present invention provides an air temperature control device of a fuel cell system, including an air filter 10, an air compressor 20, an intercooler cooling water path 30, a steam-water separator 40, and a galvanic pile unit 50; the air filter 10 is connected with the air compressor 20, the air compressor 20 is connected with the intercooler cooling water channel 30, and the steam-water separator 40 is respectively connected with the intercooler cooling water channel 30 and the electric pile unit 50;
a first temperature and pressure integrated sensor 60 is arranged between the air compressor 20 and the intercooler cooling water path 30, and a second temperature and pressure integrated sensor 70 is arranged between the intercooler cooling water path 30 and the steam-water separator 40.
As a preferred embodiment, the intercooler cooling waterway 30 comprises an intercooler 31, a radiator 32 and a PTC electric heating assembly 33, wherein the radiator 32 is respectively connected with the intercooler 31 and the PTC electric heating assembly 33, and the PTC electric heating assembly 33 is connected with the intercooler 31; the intercooler 31 is connected to the air compressor 20 and the steam-water separator 40, respectively.
As a preferred embodiment, a water pump 34 is disposed between the PTC electric heating assembly 33 and the intercooler 31, and the water pump 34 is connected to the PTC electric heating assembly 33 and the intercooler 31, respectively.
In a preferred embodiment, an air flow meter 80 is provided between the air cleaner 10 and the air compressor 20, and the air flow meter 80 is connected to the air cleaner 10 and the air compressor 20, respectively.
As a preferred embodiment, the air temperature control device of the fuel cell system further includes an air back pressure valve 90, and the air back pressure valve 90 is connected to the steam-water separator 40.
As a preferred embodiment, the steam-water separator 40 is provided with a first separation pipe 41 and a second separation pipe 42, an air inlet of the first separation pipe 41 is connected with the second temperature-pressure integrated sensor 70, and an air outlet of the first separation pipe 41 is connected with an air inlet of the electric pile unit 50; the air inlet of the second separation pipe 42 is connected to the air outlet of the galvanic pile unit 50, and the air outlet of the second separation pipe 42 is connected to the air back pressure valve 90.
In the embodiment of the present application, the heat sink 32 is a heat dissipation fan.
The galvanic pile unit is the main place for the fuel cell to perform electrochemical reactions. When the battery system works normally, air is purified by the air filter 10 and then is pile-entering air, the pile-entering air is compressed by the air compressor 20, the pressure and flow of the pile-entering air are improved, and meanwhile, the temperature of the pile-entering air is obviously increased due to the compression effect of the air compressor 20 (the pressure, the flow and the temperature of the pile-entering air are increased); when the first temperature-pressure integrated sensor 60 detects that the temperature of the air entering the pile is higher than the set value range, the air entering the pile compressed by the air compressor 20 is cooled by the intercooler 31 and then enters the steam-water separator 40, the air entering the pile enters the pile unit 50 for electrochemical reaction at a certain temperature, humidity and pressure flow rate through the cooling of the intercooler 31 and the humidification of the steam-water separator 40 and then is detected by the second temperature-pressure integrated sensor 70, and the reacted air enters the air back pressure valve 90 through the second separation pipe 42 and then is discharged into the atmosphere. Meanwhile, the intercooler 31 discharges heat carried in the compressed air to the radiator 32, and the radiator 32 releases the heat to the atmosphere.
When the flow rate of the air is increased, the rotating speed of the water pump 34 is regulated, and the flow rate of the cooling water is regulated through the rotating speed of the water pump 34, so that the cooling water is taken as a medium, and the heat carried in the air is transferred into the cooling water; simultaneously, the rotating speed of the radiator 32 is regulated, heat in the cooling water is transferred to the atmosphere, and the final radiating effect is achieved, so that the temperature of the air entering the stack does not exceed a set temperature value.
When the temperature of the stack inlet air is lower than a set value range, the temperature of the stack inlet air is increased through the intercooler 31, at the moment, the PTC electric heating assembly 33 is started to heat cooling water, the rotating speed of the water pump 34 is regulated, the heated cooling water is conveyed to the intercooler 31, and the low-temperature stack inlet air is heated through heat exchange at the intercooler 31, so that the temperature of the stack inlet air is rapidly increased; the temperature of the air taken in the pile is detected by the second temperature-pressure integrated sensor 70, and when the temperature of the air taken in the pile reaches the target set temperature range, the power gear of the PTC electric heating assembly 33 and the rotation speed of the water pump 34 are gradually reduced until the air compression ratio reaches the set range, and the heating is completely stopped. The temperature of the air being piled is maintained stable by the combination of the PTC heating assembly 33 heating and the cooling of the radiator 32 and the conditioning of the intercooler 31. Through practical fuel cell bench experiments, the air temperature control device and the air temperature control method can maintain stable temperature of air entering a pile of a pile, reduce temperature fluctuation amplitude and temperature fluctuation frequency, enable electrochemical reaction inside the pile to be carried out stably, provide stable power for a hydrogen fuel cell forklift and ensure stable operation of the hydrogen fuel cell forklift.
On the other hand, as shown in fig. 2, the embodiment of the present invention further provides a control method of the air temperature control device of the fuel cell system, which is applicable to the fuel cell system, and includes the following steps:
when the first temperature-pressure integrated sensor 60 detects that the temperature of the stack intake air of the fuel cell system is abnormal, adjusting the rotation speed of the water pump 34 of the air temperature control device until the temperature of the stack intake air detected by the second temperature-pressure integrated sensor 70 reaches a set temperature range;
the abnormality includes the temperature being higher than the set temperature range or the temperature being lower than the set temperature range.
As a preferred embodiment, when the temperature is higher than the set temperature range, the specific operation steps of the control method of the air temperature control device of the fuel cell system are as follows: when the first temperature-pressure integrated sensor 60 detects that the temperature of the air in the stack is higher than the set value range, the rotation speed of the water pump 34 and the rotation speed of the radiator 32 are simultaneously adjusted until the temperature of the air in the stack detected by the second temperature-pressure integrated sensor 70 reaches the set temperature range.
As a preferred embodiment, when the temperature is lower than the set temperature range, the specific operation steps of the control method of the air temperature control device of the fuel cell system are as follows: when the first temperature-pressure integrated sensor 60 detects that the temperature of the air entering the pile is lower than the set value range, the PTC heating assembly 33 is started to heat the air entering the pile, which is detected by the second temperature-pressure integrated sensor 70, at the same time of adjusting the rotating speed of the water pump 34, and the temperature of the air entering the pile reaches the set temperature range.
According to the method, the intercooler cooling waterway is arranged, when the temperature of the air entering the stack is higher than a set temperature range, the rotating speed of the water pump and the rotating speed of the radiator are regulated, and the high Wen Jindui air is cooled; when the temperature of the air entering the pile is lower than the set temperature range, the rotating speed of the water pump and the PTC electric heating gear are regulated, and the low-temperature air is heated. According to the method and the device, the temperature of the air entering the pile can be independently regulated under the condition that the air compression ratio and the air flow are not influenced, so that the fluctuation amplitude and the fluctuation frequency of the temperature of the air entering the pile are effectively reduced, and the normal electrochemical reaction inside the pile and the stable operation of the battery can be ensured.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. An air temperature control device of a fuel cell system is characterized by comprising an air filter, an air compressor, an intercooler cooling water path, a steam-water separator and a pile unit; the air filter is connected with the air compressor, the air compressor is connected with the intercooler cooling water channel, and the steam-water separator is respectively connected with the intercooler cooling water channel and the electric pile unit;
a first temperature and pressure integrated sensor is arranged between the air compressor and the intercooler cooling waterway, and a second temperature and pressure integrated sensor is arranged between the intercooler cooling waterway and the steam-water separator.
2. The air temperature control device of a fuel cell system according to claim 1, wherein the intercooler cooling water path includes an intercooler, a radiator, and a PTC electrical heating assembly, the radiator being connected to the intercooler, the PTC electrical heating assembly, respectively, the PTC electrical heating assembly being connected to the intercooler; and the intercooler is respectively connected with the air compressor and the steam-water separator.
3. The air temperature control device of a fuel cell system according to claim 2, wherein a water pump is provided between the PTC electric heating assembly and the intercooler, the water pump being connected to the PTC electric heating assembly and the intercooler, respectively.
4. The air temperature control device of a fuel cell system according to claim 1, wherein an air flow meter is provided between the air cleaner and the air compressor, and the air flow meter is connected to the air cleaner and the air compressor, respectively.
5. The air temperature control device of a fuel cell system according to claim 1, further comprising an air back pressure valve connected to the steam-water separator.
6. The air temperature control device of a fuel cell system according to claim 5, wherein a first separation pipe and a second separation pipe are provided on the steam-water separator, an air inlet of the first separation pipe is connected with the second temperature-pressure integrated sensor, and an air outlet of the first separation pipe is connected with an air inlet of the electric pile unit; and the air inlet of the second separation pipe is connected with the air outlet of the electric pile unit, and the air outlet of the second separation pipe is connected with the air back pressure valve.
7. The air temperature control device of a fuel cell system according to claim 1, wherein the radiator is a radiator fan.
8. A control method of an air temperature control device using the fuel cell system according to any one of claims 1 to 7, characterized by being applied to a fuel cell system, comprising the steps of:
when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air of the fuel cell system is abnormal, the rotating speed of the water pump of the air temperature control device is regulated until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches a set temperature range;
the abnormality includes the temperature being higher than the set temperature range or the temperature being lower than the set temperature range.
9. The control method of an air temperature control device of a fuel cell system according to claim 8, wherein when the temperature is higher than the set temperature range, the specific operation steps of the control method of an air temperature control device of a fuel cell system are as follows: when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air is higher than a set value range, the rotating speed of the water pump and the rotating speed of the radiator are regulated simultaneously until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches the set temperature range.
10. The control method of an air temperature control device of a fuel cell system according to claim 8, wherein when the temperature is lower than the set temperature range, the specific operation steps of the control method of an air temperature control device of a fuel cell system are as follows: when the first temperature-pressure integrated sensor detects that the temperature of the stack inlet air is lower than a set value range, the PTC heating assembly is started to heat the stack inlet air until the temperature of the stack inlet air detected by the second temperature-pressure integrated sensor reaches the set temperature range while the rotating speed of the water pump is regulated.
CN202310363629.1A 2023-03-31 2023-03-31 Air temperature control device and control method for fuel cell system Pending CN116387571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310363629.1A CN116387571A (en) 2023-03-31 2023-03-31 Air temperature control device and control method for fuel cell system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310363629.1A CN116387571A (en) 2023-03-31 2023-03-31 Air temperature control device and control method for fuel cell system

Publications (1)

Publication Number Publication Date
CN116387571A true CN116387571A (en) 2023-07-04

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CN202310363629.1A Pending CN116387571A (en) 2023-03-31 2023-03-31 Air temperature control device and control method for fuel cell system

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