Galvanic pile membrane electrode leakage detection device

Abstract

The invention provides a galvanic pile membrane electrode leakage detection device which is used for detecting leakage of a galvanic pile membrane electrode plate, the galvanic pile membrane electrodeplate is provided with a first chamber and two groups of second chambers, the first chamber comprises an upper chamber and a lower chamber. The device comprises a vacuum box, a clamp, a leakage detection pipeline, a first connecting pipeline, a second connecting pipeline, a valve group, a leakage detector and a vacuum pump for vacuumizing a cavity, the leakage detection pipeline is used for communicating the interior of the vacuum box with one group of the second chamber, the upper chamber and the lower chamber; the second connecting pipeline respectively penetrates through the clamp and is communicated with the lower chamber and the two groups of second chambers; and the valve group comprises a plurality of valves for controlling the connection and disconnection of the first connecting pipeline, the second connecting pipeline and the leakage detection pipeline. The galvanic pile membrane electrode leakage detection device can simultaneously detect the inner micro leakage of a plurality of cavities relative to the plurality of cavities and the outer leakage of the plurality of cavities, and can quickly detect the leakage of the membrane electrode plate.

Description

technical field [0001] The invention relates to the technical field of vacuum leak detection, in particular to a leak detection device for a stack membrane electrode. Background technique [0002] The membrane electrode is the "chip" of the proton exchange membrane fuel cell, the place where the electrochemical reaction of the proton exchange membrane fuel cell occurs, and the core link of the fuel cell technology. [0003] Membrane electrode plates need to be leak tested to ensure good sealing. When leak detection, it is necessary to check the inner leaks between the cavities in pairs, and then check the outer leaks of these cavities at the same time. The existing equipment needs to check the inner cavities one by one, and the leak detection efficiency is low. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art, and provide a leak detection device for the stack membrane electrode. [0...

AI Technical Summary

Problems solved by technology

When leak detection, it is necessary to check the inner leaks between the cavities in pairs, and then check the outer leaks of these cavities at the same time. The existing equipment needs to check the inner cavities one by one, and the leak detection efficiency is low.

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