Fuel cell anode purging device and method

A fuel cell and anode technology, applied in the direction of fuel cells, fuel cell additives, circuits, etc., can solve problems such as unfavorable fuel cell system integration layout, difficult practical vehicle application, and inability to remove gaseous water from the mixed gas of the stack. It is beneficial to the promotion and use of real vehicles, guarantees the service life, and facilitates the effect of integrated layout

Pending Publication Date: 2021-11-19
上海澄朴科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are two defects in this patent: 1. Too many solenoid valves and reactors are not conducive to the integrated layout of the fuel cell system, and it is difficult t

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  • Fuel cell anode purging device and method

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[0035] Example 1:

[0036] A fuel cell anode purge device, such as figure 1 As shown, it includes a hydrogen supply module, a stack 4, a three-way valve I6, a gas-water separator 5, a three-way valve II10, a dryer 9, a hydrogen circulation pump 11 and a solenoid valve 12.

[0037] The hydrogen supply module is used to supply hydrogen, and the outlet of the hydrogen supply module is connected to the first branch and the second branch respectively, the first branch is connected to the anode inlet of the stack 4, and the second branch is connected to the dryer 9. Inlet; Solenoid valve 12 is arranged on the second branch for switching on and off the second branch; the three-way valve I6 includes an a inlet, a b outlet and a c outlet, and the three-way valve II10 includes a d inlet and an e inlet and an outlet f, the gas-water separator 5 includes an inlet, a gas outlet and a liquid outlet; the inlet a of the three-way valve I6 is connected to the anode outlet of the stack 4, the ...

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Abstract

The invention relates to a fuel cell anode purging device and method. The fuel cell anode purging device comprises a hydrogen supply module, an electric pile, a three-way valve I, a gas-water separator, a three-way valve II, a dryer, a hydrogen circulating pump and an electromagnetic valve, wherein a gas outlet of the hydrogen supply module is communicated to an electric pile anode inlet; an inlet a of the three-way valve I is communicated to an electric pile anode outlet, an outlet b is communicated to a dryer inlet, and an outlet c is communicated to a gas-water separator inlet; an inlet d of the three-way valve II is communicated to a gas outlet of the gas-water separator, an inlet e is communicated to an outlet of the dryer, an outlet f is communicated to a gas inlet of the hydrogen circulating pump, and a gas outlet of the hydrogen circulating pump is communicated to an anode inlet of the electric pile. Compared with the prior art, liquid water is separated and discharged by using the gas-water separator, vaporous water is adsorbed by using the dryer, residual liquid water and vaporous water on an anode are avoided, the service life of an electric pile is ensured, the flow direction of hydrogen is controlled through the two three-way valves, the occupied volume is small, integrated arrangement is facilitated, and popularization and use of a real vehicle are facilitated.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell anode purging device and method. Background technique [0002] Fuel cells, especially proton exchange membrane fuel cells, generate electricity and heat through the electrochemical reaction of hydrogen and oxygen. At the same time, the product is only water, and no other harmful gases are discharged. Cycle limited, its electrical energy conversion efficiency is greater than 50%. The advantages of fuel cells such as no pollutant emissions and high power conversion efficiency make proton exchange membrane fuel cell technology more and more used in passenger cars, light trucks, medium and heavy trucks and other vehicles. [0003] Proton exchange membrane fuel cells need appropriate moisture to convert electricity efficiently. Too little or excess moisture will have a negative impact on the fuel cell conversion efficiency. Therefore, the gas passing into the fuel cell...

Claims

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Application Information

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IPC IPC(8): H01M8/04119H01M8/04228H01M8/04303H01M8/04089
CPCH01M8/04164H01M8/04179H01M8/04171H01M8/04228H01M8/04303H01M8/04097H01M8/04201Y02E60/50
Inventor 马天才
Owner 上海澄朴科技有限公司
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