Online gas tightness detection device and method for fuel cell stack

A fuel cell stack and detection device technology, which is applied in the direction of using liquid/vacuum to measure liquid tightness and measuring the rate of increase and deceleration of fluid, etc., which can solve problems such as messy pipelines, high cost of seals, and reduced work efficiency. , to achieve the effect of simplifying the air tightness testing operation, reducing the loss of seals and improving work efficiency

Active Publication Date: 2014-07-02
SUNRISE POWER CO LTD +1
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AI Technical Summary

Problems solved by technology

[0006] 1. Disassemble the fuel cell to find the leak point. This work is very time-consuming and directly reduces work efficiency;
[0007] 2. The original seal is set on the bipolar plate. Although the seal originally had adhesive on the surface of the sealing groove on the bipolar plate, the seal has been fastened to the end face of some sealing areas of the membrane electrode for a long time. After a large adhesion force is generated, when the battery stack is disassembled to separate the bipolar plate from the memb

Method used

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  • Online gas tightness detection device and method for fuel cell stack
  • Online gas tightness detection device and method for fuel cell stack
  • Online gas tightness detection device and method for fuel cell stack

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Embodiment Construction

[0030] The present invention is further described below in conjunction with embodiment:

[0031] Such as Figure 1 to Figure 3As shown, this embodiment discloses an online airtightness detection device for a fuel cell stack, including a pressure gauge and a gas leakage rate tester, and is characterized in that it also includes a convenient airtightness test box 23, and the airtightness is conveniently One end of the test box 23 is provided with an air source inlet 15, and the air source inlet 15 is the port of the total air pipe 16, and the total air pipe 16 is provided with a pressure gauge interface 20, between the air source inlet 15 and the pressure gauge interface 20 A main air valve 4 is installed on the pipeline, and the end of the main air pipe 16 away from the inlet of the gas source is divided into three branch pipes: pipe I1, pipe II2 and pipe III3, and the ends of pipe I1, pipe II2 and pipe III3 away from the main air pipe are respectively Interface I12, interface...

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Abstract

The invention discloses an online gas tightness detection device and method for a fuel cell stack. The online gas tightness detection device for the fuel cell stack comprises a pressure gauge, a gas tightness portable test box and a gas leakage speed test meter, wherein a pipe is arranged in the gas tightness portable test box, a required control valve is arranged on the pipe, and the pipe and the control valve can be matched to perform gas tightness detection on the fuel cell stack by testing gas. The online gas tightness detection device for the fuel cell stack is reasonable in structure and easy to operate. By means of the online gas tightness detection method for the fuel cell stack, work efficiency and economic benefit can be increased effectively, gas tightness detection operation is simplified greatly, and efficient and reasonable detection on the fuel cell stack can be achieved.

Description

technical field [0001] The invention relates to a fuel cell stack test device, in particular to an online air tightness detection device for a fuel cell stack. Background technique [0002] At present, the proton exchange membrane fuel cell (PEMFC) is a power generation device that directly utilizes hydrogen energy. PEMFC directly converts the chemical energy stored in hydrogen fuel and oxidant into electrical energy, with high energy conversion efficiency; the fuel cell is environmentally friendly and the only emission The thing is water. Therefore, fuel cell technology is considered to be the preferred clean and efficient power generation technology in the 21st century. [0003] A typical proton exchange membrane fuel cell stack usually includes: (1) diversion inlets and diversion channels for fuel and oxidant gas, and fuel (such as hydrogen, methanol or hydrogen-rich gas obtained by reforming methanol, natural gas, gasoline) and oxidant (mainly oxygen or air) are evenly...

Claims

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Application Information

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IPC IPC(8): G01M3/26
Inventor 宋琛刘常福侯中军付宇王红梅窦永香
Owner SUNRISE POWER CO LTD
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