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Fuel cell gas sampling system and sampling method

A fuel cell and gas sampling technology, applied in fuel cells, electrical components, circuits, etc., can solve the problems of inability to achieve multi-point gas sampling in fuel cells, inability to monitor gas content, etc., to achieve safe and reliable working conditions, ensure utilization, The effect of ensuring work safety and working life

Active Publication Date: 2019-05-24
TSINGHUA UNIV
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Problems solved by technology

[0004] Based on this, it is necessary to provide a fuel cell gas sampling system and sampling method for the problem that the traditional scheme cannot realize multi-point gas sampling inside the fuel cell and cannot monitor the gas content at different positions inside the fuel cell

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  • Fuel cell gas sampling system and sampling method
  • Fuel cell gas sampling system and sampling method

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Embodiment Construction

[0065] In order to make the purpose, technical solution and advantages of the present application clearer, the fuel cell gas sampling method of the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0066] see Figure 1-Figure 3 , the application provides a fuel cell gas sampling method, at least including the following steps:

[0067] S100 , setting a sampling pipeline 41 and a plurality of sampling points 40 . The plurality of sampling points 40 are arranged in the cathode inlet 1 , the anode outlet 3 , the anode inlet 4 , the cathode outlet 6 , and the anode flow channel 51 and the cathode flow channel 61 of the fuel cell. Wherein, the sampling points 40 arranged in the anode flow channel 51 and the cathode flow channel 61 protrude into the ...

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Abstract

The present invention belongs to the field of fuel cell technologies and relates to a fuel cell gas sampling system and a sampling method. In the fuel cell gas sampling method, a plurality of samplingpoints are set to acquire sampling gases at different positions in a fuel cell respectively, and therefore, the sampling of the gases at a plurality of points inside the fuel cell can be realized, and gas content at the different positions inside the fuel cell can be monitored in real time; and the plurality of sampling points extend into the central regions of the cross sections of an anode flowchannel and a cathode flow channel so as to accurately obtain gases flowing through the flow channels. The plurality of sampling points are arranged in the flow channels of the anode plate and cathode plate of the fuel cell, so as to obtain the sampling gases at each point; and the analysis of the gas content and concentration can help the fuel cell to obtain safer and more reliable working conditions, and is beneficial for ensuring the working safety and service life of the fuel cell and ensuring the utilization rate of the fuel cell.

Description

technical field [0001] The present application relates to the technical field of fuel cells, in particular to a fuel cell gas sampling system and sampling method. Background technique [0002] A fuel cell is an electrochemical power generation device. Its principle is that fuel (such as hydrogen) and oxidant (such as air) undergo an electrochemical reaction through a membrane electrode to generate an electromotive force. Proton exchange membrane fuel cells usually use a polymer membrane capable of transferring protons as the electrolyte. During the reaction, protons are transferred from the anode to the cathode through the membrane, and electrons are transferred from the anode to the cathode through an external load. The gas concentration inside the fuel cell is of great significance to the performance evaluation of the fuel cell. Therefore, a system and method for gas sampling inside a fuel cell system becomes very important. [0003] At present, the method for sampling t...

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Application Information

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IPC IPC(8): H01M8/0444G01N1/26
CPCY02E60/50
Inventor 李建秋王清徐梁飞方川欧阳明高胡尊严江宏亮赵兴旺
Owner TSINGHUA UNIV
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