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Dynamic pressure regulating device and method for anode gas supply loop of fuel cell

A fuel cell, dynamic pressure regulation technology, applied in the direction of fuel cells, fuel cell additives, fuel cell control, etc. Risk of rupture, improved output performance, avoidance of insufficient hydrogen content

Active Publication Date: 2020-06-26
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The challenge of practical application is: when the purge exhaust valve is closed to open, the anode pressure drops sharply, and the performance of the fuel cell decreases. There is a great risk of fuel starvation during this period of loading. In addition, the sudden change in the anode pressure causes the cathode and The change of the anode pressure difference will affect the life of the membrane electrode at the slightest, and directly lead to the perforation or rupture of the proton exchange membrane, which will cause irreversible damage to the fuel cell.

Method used

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  • Dynamic pressure regulating device and method for anode gas supply loop of fuel cell
  • Dynamic pressure regulating device and method for anode gas supply loop of fuel cell
  • Dynamic pressure regulating device and method for anode gas supply loop of fuel cell

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Embodiment

[0031] figure 1 It is a structural diagram of a specific embodiment of a dynamic pressure regulating device of a fuel cell anode gas supply circuit of the present invention.

[0032] In this example, if figure 1 As shown, the present invention is a dynamic pressure regulating device of fuel cell anode gas supply circuit, including: proportional combination valve, common rail injection valve, Purge solenoid valve, pressure measurement sensor group, controller and pipeline, according to figure 1 Make plumbing connections. Among them, the values ​​of the pressure measurement sensors P1~P4 are connected to the controller through the analog input AI channel, the proportional valve in the proportional combination valve is controlled by the controller using the PWM2 output port with power drive capability, and the common rail injection valve is controlled by the controller. The PWM1 output port is controlled, and the solenoid valve and Purge solenoid valve in the proportional combi...

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Abstract

The invention discloses a dynamic pressure regulating device and method for an anode gas supply loop of a fuel cell. By controlling various valves to work cooperatively, the anode pressure of the fuelcell can be stabilized within a proper range in the steady-state, loading, deloading and exhausting stages, so that the anode pressure can be stably controlled, the hydrogen flow can be quickly supplemented, and the characteristics of high safety and low cost are achieved.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and more specifically relates to a dynamic pressure regulating device and method for a fuel cell anode gas supply circuit. Background technique [0002] Against the backdrop of increasing global energy demand and intensifying environmental crisis, people are paying more and more attention to new ways of utilizing clean energy. Among them, proton exchange membrane fuel cells have come into the public's attention due to their advantages of high efficiency, zero pollution, low noise, and fast start-up. [0003] When the fuel cell works normally, the cathode needs to provide enough oxygen, and the anode needs to provide enough hydrogen. At the same time, the anode needs to provide a certain pressure when the amount of hydrogen is satisfied. The proper pressure value of the anode can improve the performance of the fuel cell and ensure the operation of the fuel cell. In the best working condition, ...

Claims

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Application Information

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IPC IPC(8): H01M8/0438H01M8/04746H01M8/04992H01M8/04298
CPCH01M8/04388H01M8/04425H01M8/04753H01M8/04776H01M8/04992H01M8/04298Y02E60/50
Inventor 李凯汤浩刘秋秀田维方明邹见效
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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