CN112635795A - Fuel cell air pressure adjusting device and system - Google Patents

Fuel cell air pressure adjusting device and system Download PDF

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Publication number
CN112635795A
CN112635795A CN202011517118.3A CN202011517118A CN112635795A CN 112635795 A CN112635795 A CN 112635795A CN 202011517118 A CN202011517118 A CN 202011517118A CN 112635795 A CN112635795 A CN 112635795A
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China
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air
valve
connecting rod
valve plate
valve body
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CN202011517118.3A
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CN112635795B (en
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马义
张剑
李学锐
王�章
李洪涛
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04104—Regulation of differential pressures
    • 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
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow 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
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a fuel cell air pressure adjusting device, which comprises a valve body, a valve plate, a link mechanism and a mechanical actuating mechanism, wherein an air inlet of the valve body is communicated with an air outlet of a galvanic pile, and an outlet of the valve body is communicated with a tail gas discharge pipeline through the valve plate; the connecting rod mechanism is arranged on the outer side of the valve plate, the input end of the connecting rod mechanism is connected with the mechanical actuating mechanism, and the mechanical actuating mechanism drives the input end of the connecting rod mechanism to move along the axial direction of the valve body; the output end of the link mechanism is sleeved on the shaft sleeve and fixedly connected with the outer side of the valve plate. The invention also provides a fuel cell air pressure regulating system. The invention has the beneficial effects that: the invention adopts purely mechanical pressure regulation, gas is led from the outlet of the air compressor, the slide rod is driven to move by the membrane, and the opening and closing of the valve plate are regulated by the link mechanism, so that the air pressure regulation of the fuel cell is realized, the rotating speed regulation decoupling of the air compressor is realized, a large amount of control models and algorithms are saved, and the control complexity of the fuel cell is reduced.

Description

Fuel cell air pressure adjusting device and system
Technical Field
The invention relates to a vehicle fuel cell, in particular to a fuel cell air pressure adjusting device and system.
Background
The fuel cell system comprises a galvanic pile, an air system, a hydrogen system, a cooling system and a corresponding control system, wherein the air system comprises an air filter, an air flow meter, an air compressor, a humidifier, a back pressure valve, a pressure release valve and the like, and is used for providing air flow and air pressure required by operation for the galvanic pile. Due to different working boundaries of the galvanic pile under different working conditions, the requirements on parameters such as flow, temperature, pressure and humidity of air supplied by an air system can be changed correspondingly. The air compressor is generally centrifugal and is used for providing air flow for the electric pile, and the air pressure entering the electric pile can be controlled by the back pressure valve and the rotation speed adjustment of the air compressor. The pressure relief valve can bypass redundant air, and the surge of the air compressor is avoided. In the technical scheme of the existing air pressure adjusting device for the fuel cell, a backpressure valve comprises a valve, a valve rod, a gear set, a motor, an angle sensor, a sealing device and the like. The valve generally adopts a butterfly type, lifting type or disc-drawing type structure. The opening degree of the valve is controlled by a motor, the angle of the motor is controlled by a fuel cell controller, therefore, a set of complex algorithms which are suitable for pressure adjustment of the back pressure valve are needed in the controller, such as a pressure drop model, a valve position model, a feedforward model and the like, the control complexity of the fuel cell system is increased, the system cost is increased, and the surge risk of the centrifugal air compressor can be increased by adjusting the air pressure by the electric back pressure valve.
Chinese patent CN103779590B discloses a cathode shunt control and pressure control method for a vehicle fuel cell power system, which relates to an apparatus and method for controlling a cathode backpressure valve and a bypass valve in a vehicle fuel cell system, a feed forward based control strategy for controlling the cathode backpressure valve, the control of the bypass valve being integrated into the control of the cathode backpressure valve, such control strategy predictively improving the valve response to the instantaneous cathode pressure and bypass shunt set point in the system. However, this control method has drawbacks in that: the technology adopts an electric back pressure valve device, belongs to an air system stack pressure adjusting device, but needs a fuel cell controller to carry out real-time control on the back pressure valve, and the controller needs a set of complex algorithm adapting to the pressure adjustment of the back pressure valve, such as a pressure drop model, a valve position model, a feedforward model and the like, so that the control complexity of the fuel cell system is increased, the system cost is increased, and the surge risk of a centrifugal air compressor can be increased by adjusting the air pressure through the electric back pressure valve.
Chinese patent CN210034431U discloses a fuel cell back pressure valve, which comprises a stepping motor and a motor controller, wherein the stepping motor drives a threaded sleeve located in the stepping motor to perform a rotary motion, the threaded sleeve is matched with a screw rod, the lower end of the screw rod sequentially passes through a first guide sleeve and a second guide sleeve, the first guide sleeve is arranged in an inner cavity of a connecting plate, the second guide sleeve is arranged in an inner cavity of a valve body, the lower end of the valve body is fixedly connected with a bottom plate, a vent hole is formed in the bottom plate, the lower end of the screw rod is connected with a valve plate for closing the vent hole, a limit base for limiting the displacement of the valve plate moving upwards is arranged above the valve plate, a square hole is formed in the first guide sleeve, and a part of the screw rod located in the first guide sleeve is provided with a limit notch for preventing the screw rod from rotating in the square hole; the technical scheme solves the problems of poor sealing performance, abrasion, clamping stagnation and the like of the traditional throttle valve used in a fuel cell system, but has the following defects: the technology adopts an electric control lifting type back pressure valve device, belongs to an air system stack inlet pressure adjusting device, but needs a fuel cell controller to carry out real-time control on the back pressure valve, and a set of complex algorithm adapting to the pressure adjustment of the back pressure valve is needed in the controller, so that the control complexity of the fuel cell system is increased, and the system cost is increased.
Disclosure of Invention
The invention aims to provide a fuel cell air pressure adjusting device and a fuel cell air pressure adjusting system which are low in cost and simple in control and adjustment process aiming at the defects of the prior art.
The technical scheme adopted by the invention is as follows: an air pressure adjusting device of a fuel cell comprises a valve body, a valve plate, a connecting rod mechanism and a mechanical actuating mechanism, wherein an air inlet of the valve body is communicated with an air outlet of a galvanic pile, and an outlet of the valve body is communicated with a tail gas discharge pipeline through the valve plate; the connecting rod mechanism is arranged on the outer side of the valve plate, the input end of the connecting rod mechanism is connected with the mechanical actuating mechanism, and the mechanical actuating mechanism drives the input end of the connecting rod mechanism to move along the axial direction of the valve body; the output end of the connecting rod mechanism is sleeved on the shaft sleeve and fixedly connected with the outer side of the valve plate; when the mechanical actuating mechanism drives the input end of the connecting rod mechanism to move axially along the valve body, the output end of the connecting rod mechanism rotates on the shaft sleeve and drives the valve plate to turn over up and down, and the outlet of the valve body is opened or closed.
According to the scheme, the mechanical actuating mechanism comprises an actuator and an air entraining pipe, the actuator comprises a shell, a diaphragm and a sliding rod, and the diaphragm is slidably arranged in the shell and divides the interior of the shell into a left cavity and a cavity; the inlet end of the air-entraining pipe is communicated with an air source, and the outlet end of the air-entraining pipe is communicated with the left cavity; the diaphragm is connected with one end of the sliding rod, and the other end of the sliding rod extends out of the right cavity and is connected with the input end of the connecting rod mechanism; when the pressure of the air source led into the left cavity from the air guide pipe changes, the diaphragm slides rightwards or leftwards, the sliding rod connected with the diaphragm slides along with the diaphragm and drives the input end of the connecting rod mechanism to move, and the input end of the connecting rod mechanism drives the valve block to overturn up and down and open or close the outlet of the valve body.
According to the scheme, the right cavity is internally provided with the reset spring, one end of the reset spring is fixedly connected with the diaphragm, and the other end of the reset spring is connected with the side wall of the end part of the right cavity.
According to the scheme, the whole connecting rod mechanism is Z-shaped and comprises a first horizontal section, a second horizontal section and a vertical section for connecting the first horizontal section and the second horizontal section, and the outer end of the sliding rod is connected with the end part of the first horizontal section; and the valve plate is connected with the end part of the second horizontal section.
According to the scheme, the valve hole is formed in the valve plate.
The invention also provides a fuel cell air pressure regulating system which is characterized by comprising an air compressor, an electric pile, a controller and the pressure regulating device, wherein the inlet of the air compressor is connected with an air source, the first outlet of the air compressor is communicated with the air inlet of the electric pile, and the second outlet of the air compressor is connected with the air inlet pipe of the pressure regulating device; the air outlet of the electric pile is connected with the air inlet of the valve body of the pressure regulating device; the controller is respectively electrically connected with the air compressor and the electric pile, and is used for adjusting the rotating speed of the air compressor according to the change of the electric pile to the air pressure under different working conditions, so that the aim of adjusting the air pressure entering the electric pile is fulfilled.
The technical scheme adopted by the invention is as follows: according to the invention, pure mechanical pressure regulation is adopted, air is introduced from the outlet of the air compressor, the sliding rod is driven to move through the membrane, and the opening and closing of the valve plate are regulated through the link mechanism, so that the air pressure regulation of the fuel cell is realized, the rotating speed regulation decoupling of the air compressor is realized, a large number of control models and algorithms are saved, and the control complexity of the fuel cell is reduced; the motor and the gear device are eliminated, the cost of the traditional back pressure valve or the pressure adjusting device is reduced, and the reliability is improved. In the invention, the valve hole is formed on the valve plate, and the adaptive adjustment of the air flow and the air pressure under the small flow is realized through the matching design of the valve hole. The invention has reasonable structural design, good stability and high reliability.
Drawings
Fig. 1 is a schematic structural view of a pressure regulating apparatus according to the present invention.
Fig. 2 is a schematic view of the connection between the link mechanism and the valve plate.
FIG. 3 is a three-dimensional schematic view of the valve plate.
Fig. 4 is an opening schematic view of the valve sheet.
Fig. 5 is a graph of stack target air pressure versus flow for a fuel cell.
Fig. 6 is a schematic diagram of the pressure regulating system in the present valve.
Wherein: 1. a bleed pipe; 2. an actuator; 21. an air inlet; 22. a housing; 23. a membrane; 24. a return spring; 25. a slide bar; 3. a link mechanism; 31. a first horizontal segment; 32. a second horizontal segment; 33. a vertical section; 4. a valve plate; 41. a valve bore; 5. a valve body; 10. an air compressor; 100. a galvanic pile; 200. a controller; 300. a pressure regulating device.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the air pressure regulating device 300 for a fuel cell comprises a valve body 5, a valve plate 4, a link mechanism 3 and a mechanical actuator, wherein an air inlet of the valve body 5 is communicated with an air outlet of a galvanic pile 100, and an outlet of the valve body 5 is communicated with a tail gas exhaust pipeline through the valve plate 4; the connecting rod mechanism 3 is arranged on the outer side of the valve plate 4, the input end of the connecting rod mechanism 3 is connected with the mechanical actuating mechanism, and the mechanical actuating mechanism drives the input end of the connecting rod mechanism 3 to move axially along the valve body 5; the output end of the connecting rod mechanism 3 is sleeved on the shaft sleeve and fixedly connected with the outer side of the valve plate 4; when the mechanical actuator drives the input end of the link mechanism 3 to move axially along the valve body 5, the output end of the link mechanism 3 rotates on the shaft sleeve and drives the valve plate 4 to turn over up and down, and the outlet of the valve body 5 is opened or closed.
Preferably, the mechanical actuator comprises an actuator 2 and a bleed air pipe 1, the actuator 2 comprises a shell 22, a diaphragm 23 and a slide rod 25, the diaphragm 23 is slidably mounted in the shell 22, and the interior of the shell 22 is divided into a left cavity and a cavity; the inlet end of the air guide pipe 1 is communicated with an air source, and the outlet end of the air guide pipe 1 is communicated with the left cavity (the air guide pipe 1 is connected with an air inlet 21 of the left cavity); the diaphragm 23 is connected with one end of the sliding rod 25, and the other end of the sliding rod extends out of the right cavity and is connected with the input end of the connecting rod mechanism 3; when the pressure of the air source led into the left cavity from the air guide pipe 1 changes, the diaphragm 23 slides rightwards or leftwards, the sliding rod connected with the diaphragm 23 slides along with the diaphragm, the input end of the connecting rod mechanism 3 is driven to move, the input end of the connecting rod mechanism 3 drives the valve plate 4 to turn up and down, and the outlet of the valve body 5 is opened or closed.
Preferably, a return spring 24 is additionally arranged in the right cavity, one end of the return spring 24 is fixedly connected with the diaphragm 23, and the other end of the return spring 24 is connected with the side wall of the end part of the right cavity.
Preferably, the link mechanism 3 is overall Z-shaped, and comprises a first horizontal section 31, a second horizontal section 32 and a vertical section 33 connecting the first horizontal section and the second horizontal section, wherein the outer end of the slide rod 25 is connected with the end of the first horizontal section 31; the valve plate 4 is connected to the end of the second horizontal section 32, as shown in fig. 2.
Preferably, the valve plate 4 is provided with a valve hole 41.
As shown in fig. 6, the air pressure regulating system of the fuel cell includes an air compressor 10, a stack 100, a controller 200 and the pressure regulating device 300, wherein an inlet of the air compressor 10 is connected to an air source, a first outlet of the air compressor 10 is communicated with an air inlet of the stack 100, and a second outlet of the air compressor 10 is connected to an air inlet pipe of the pressure regulating device 300; the air outlet of the electric pile 100 is connected with the air inlet of the valve body 5 of the pressure regulating device 300; the controller 200 is electrically connected with the air compressor 10 and the electric pile 100 respectively, and the controller 200 is used for adjusting the rotating speed of the air compressor 10 according to the change of the air flow and the air pressure of the electric pile 100 under different working conditions, so that the aim of adjusting the air flow and the air pressure entering the electric pile 100 is fulfilled.
In the present invention, the air pressure adjusting device 300 is disposed at the exhaust port of the fuel cell stack 100, and functions as the air pressure of the stack 100, and its working principle is as follows: the air introducing pipe 1 introduces air with a certain pressure, the air enters a left cavity of the shell 22 through the air inlet 21 (the left cavity is formed by enclosing the shell 22 and the membrane 23), the air entering the left cavity has a certain pressure, the pressure acts on the membrane 23 to generate a certain thrust F1, the thrust F1 overcomes the resistance F2 of the return spring 24 and the resistance F3 of the link mechanism 3, when the F1 is less than or equal to F2+ F3, the valve plate 4 is closed, and fig. 1 shows that the valve plate 4 is in a closed state; when F1 is greater than F2+ F3, the force of air acting on the diaphragm 23 compresses the return spring 24 and moves the slide rod 25 to the right (shown in FIG. 1), the slide rod 25 moves to the right to drive the second horizontal section 32 of the link mechanism 3 to rotate, and the valve plate 4 is overturned to open the outlet of the valve body 5, as shown in FIG. 4. The larger the air pressure introduced by the bleed air pipe 1 is, the larger the compression amount of the return spring 24 is, the larger the displacement of the slide rod 25 is, and the larger the opening angle of the corresponding valve plate 4 is.
In the invention, the valve plate 4 is provided with a valve hole 41, and the diameter of the valve hole 41 is phi. When the valve plate 4 is closed, the influence of the diameter phi of the valve hole 41 on the air pressure is shown in fig. 5, the diameter phi 1 of the corresponding valve hole 41 is less than phi 2 and less than phi 3, and the corresponding air pressure curve is shown in the figure, and it can be seen that the larger the diameter of the valve hole 41 is, the smaller the slope of the increase of the air pressure along with the change of the flow is. In fig. 5, a graph of the target air pressure versus the flow rate of the stack 100 of the fuel cell shows that when the air flow rate is lower than a certain value m1, the target air pressure increases with the increase of the flow rate, and when the flow rate reaches a certain value m2, the target air pressure is kept constant, in the invention, the air flow rates m1 and m2 are determined according to the operation conditions required by the operation of the stack, generally, m1 is about 50% of the air flow rate value under the rated power of the stack, and m2 is about 60% of the air flow rate value under the rated power of the stack. The target value of air pressure under small flow (lower than m 1) can be met by adjusting the diameter of the valve hole 41, but the actual pressure value under large flow (higher than m 1) is far higher than the target air pressure, at the moment, the valve plate 4 is opened by the displacement of the slide rod 25, and the actual air pressure can be reduced by adjusting the opening angle of the valve plate 4 to reach the target air pressure value.
In the design of the actual scheme, the area of the diaphragm 23, the stiffness of the return spring 24, the length of the second horizontal section 32 of the link mechanism 3, the maximum outer diameter of the valve plate 4 and the like need to be designed according to the maximum air pressure value at a target air flow rate, the diameter of the valve hole 41 of the valve plate 4 needs to be designed according to the corresponding relation between the air pressure below the flow rate m1 and the flow rate, and the purpose is that when the air flow rate is smaller than m1, the valve plate 4 is closed; when the air flow rate is larger than m1, the valve plate 4 is opened, and the larger the air flow rate is, the larger the opening angle of the valve plate 4 is.
The method for the air pressure regulating system to regulate the pressure of the stack 100 is as follows: as shown in fig. 6, the pressure regulating device 300 is disposed in the fuel cell air circuit manner, and includes an air compressor 10, a stack 100, a controller 200, and the pressure regulating device 300, and a short dotted line is a control line and a long dotted line is a lead-out pipe. The air circulation direction is air compressor 10, electric pile 100, pressure regulating device 300. A first outlet of the air compressor 10 is connected with an air inlet of the electric pile 100, and a second outlet of the air compressor 10 is connected with a bleed air pipe 1 of the pressure adjusting device 300. When the air flow is less than m1, the force of the air pressure introduced by the bleed air pipe 1 acting on the diaphragm 23 is not enough to compress the return spring 24 to drive the slide rod 25 to move rightwards, and the valve plate 4 is closed. The air pressure curve at the inlet of the stack 100 is shown in fig. 4 (the diameter phi 2 of the valve hole 41) and the pressure curve varies with the flow rate. When the air flow is larger than m1, the force of the air pressure introduced by the bleed air pipe 1 acting on the diaphragm 23 is gradually increased to be enough to compress the return spring 24 to drive the slide rod 25 to move rightwards, and the valve plate 4 is slowly opened; after the valve plate 4 is opened, the flow area of the valve is increased, the flow resistance is reduced, and the rising slope of the air pressure is slowed until the target air pressure value is reached.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. The air pressure adjusting device of the fuel cell is characterized by comprising a valve body, a valve plate, a connecting rod mechanism and a mechanical actuating mechanism, wherein an air inlet of the valve body is communicated with an air outlet of a galvanic pile, and an outlet of the valve body is communicated with a tail gas discharge pipeline through the valve plate; the connecting rod mechanism is arranged on the outer side of the valve plate, the input end of the connecting rod mechanism is connected with the mechanical actuating mechanism, and the mechanical actuating mechanism drives the input end of the connecting rod mechanism to move along the axial direction of the valve body; the output end of the connecting rod mechanism is sleeved on the shaft sleeve and fixedly connected with the outer side of the valve plate; when the mechanical actuating mechanism drives the input end of the connecting rod mechanism to move axially along the valve body, the output end of the connecting rod mechanism rotates on the shaft sleeve and drives the valve plate to turn over up and down, and the outlet of the valve body is opened or closed.
2. The pressure regulating device of claim 1, wherein the mechanical actuator comprises an actuator and a bleed air duct, the actuator comprising a housing, a diaphragm and a slide bar, the diaphragm being slidably mounted within the housing to divide the interior of the housing into a left chamber and a free chamber; the inlet end of the air-entraining pipe is communicated with an air source, and the outlet end of the air-entraining pipe is communicated with the left cavity; the diaphragm is connected with one end of the sliding rod, and the other end of the sliding rod extends out of the right cavity and is connected with the input end of the connecting rod mechanism; when the pressure of the air source led into the left cavity from the air guide pipe changes, the diaphragm slides rightwards or leftwards, the sliding rod connected with the diaphragm slides along with the diaphragm and drives the input end of the connecting rod mechanism to move, and the input end of the connecting rod mechanism drives the valve block to overturn up and down and open or close the outlet of the valve body.
3. The pressure regulating device of claim 2, wherein a return spring is additionally arranged in the right cavity, one end of the return spring is fixedly connected with the diaphragm, and the other end of the return spring is connected with the end side wall of the right cavity.
4. The pressure regulating device of claim 2, wherein the link mechanism is Z-shaped as a whole, and comprises a first horizontal section, a second horizontal section and a vertical section connecting the first horizontal section and the second horizontal section, and the outer end of the slide rod is connected with the end of the first horizontal section; and the valve plate is connected with the end part of the second horizontal section.
5. The pressure regulating device of claim 1, wherein the valve flap defines a valve opening.
6. A fuel cell air pressure regulating system is characterized by comprising an air compressor, a galvanic pile, a controller and a pressure regulating device as claimed in any one of claims 1 to 5, wherein an inlet of the air compressor is connected with an air source, a first outlet of the air compressor is communicated with an air inlet of the galvanic pile, and a second outlet of the air compressor is connected with an air inlet pipe of the pressure regulating device; the air outlet of the electric pile is connected with the air inlet of the valve body of the pressure regulating device; the controller is respectively electrically connected with the air compressor and the electric pile, and is used for adjusting the rotating speed of the air compressor according to the change of the electric pile to the air pressure under different working conditions, so that the aim of adjusting the air pressure entering the electric pile is fulfilled.
CN202011517118.3A 2020-12-21 2020-12-21 Fuel cell air pressure adjusting device and system Active CN112635795B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011517118.3A CN112635795B (en) 2020-12-21 2020-12-21 Fuel cell air pressure adjusting device and system

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CN202011517118.3A CN112635795B (en) 2020-12-21 2020-12-21 Fuel cell air pressure adjusting device and system

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CN112635795B CN112635795B (en) 2022-02-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204333124U (en) * 2015-01-06 2015-05-13 上海新源动力有限公司 The regulator of PEM fuel cell engine air system
US20160211536A1 (en) * 2015-01-19 2016-07-21 Hyundai Motor Company System and method for controlling fuel cell of vehicle
CN110165255A (en) * 2019-07-10 2019-08-23 武汉雄韬氢雄燃料电池科技有限公司 A kind of fuel battery engines pneumatics control system and method
CN210034431U (en) * 2019-05-23 2020-02-07 安徽威尔低碳科技股份有限公司 Fuel cell back pressure valve
CN210429973U (en) * 2019-08-15 2020-04-28 吴晓梅 Gas decompression tracking device for fuel cell
CN211820848U (en) * 2019-12-03 2020-10-30 合肥威尔燃油系统股份有限公司北京分公司 Fuel cell air inlet control valve
CN112081973A (en) * 2020-09-30 2020-12-15 上海燃料电池汽车动力系统有限公司 Lever type pressure reducing valve and regulating and controlling method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204333124U (en) * 2015-01-06 2015-05-13 上海新源动力有限公司 The regulator of PEM fuel cell engine air system
US20160211536A1 (en) * 2015-01-19 2016-07-21 Hyundai Motor Company System and method for controlling fuel cell of vehicle
CN210034431U (en) * 2019-05-23 2020-02-07 安徽威尔低碳科技股份有限公司 Fuel cell back pressure valve
CN110165255A (en) * 2019-07-10 2019-08-23 武汉雄韬氢雄燃料电池科技有限公司 A kind of fuel battery engines pneumatics control system and method
CN210429973U (en) * 2019-08-15 2020-04-28 吴晓梅 Gas decompression tracking device for fuel cell
CN211820848U (en) * 2019-12-03 2020-10-30 合肥威尔燃油系统股份有限公司北京分公司 Fuel cell air inlet control valve
CN112081973A (en) * 2020-09-30 2020-12-15 上海燃料电池汽车动力系统有限公司 Lever type pressure reducing valve and regulating and controlling method thereof

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