A fuel cell glue line sealing ability testing method
A fuel cell and capacity testing technology, which is applied in fluid tightness testing, machine/structural component testing, measuring devices, etc. It can solve the problem of long detection period, inconsistent working status of glue lines, and difficulty in accurately judging whether glue lines are suitable, etc. problems, to achieve the effect of short detection period, easy control and reliable detection results
Active Publication Date: 2018-06-19
SUNRISE POWER CO LTD
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Problems solved by technology
The disadvantages of corrosion resistance testing are: the detection period is long, and the sample block is inconsistent with the actual working state of the glue line, so it is difficult to accurately judge whether the glue line is suitable for fuel cell stacks
Method used
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Embodiment 1
[0028] Example 1. Testing the sealing ability of glue line A.
[0029] The single cell sealed with glue line A is tested by the above test method, and the test results are as follows:
[0030] 1. Test under different assembly forces
[0031] Under different assembly forces of 20kN, 30kN, and 40kN respectively, the pressure of the hydrogen and oxygen chamber in the single cell is 100kPa, and the leakage of the single cell 7 hydrogen and oxygen chamber is detected. The test results are shown in Table 1.
[0032] Table 1
[0033]
[0034] The test result shows that the glue line is A, which meets the sealing requirements under different assembly forces;
[0035] 2. High and low temperature cycle test
[0036] Keeping the assembly force of 40kN unchanged, the single cell was subjected to 20 high and low temperature cycles. After each low temperature cycle, the hydrogen and oxygen chamber pressure in the single cell was 100Kpa, and the external leakage test was carried out. T...
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The invention relates to a method for testing the sealing ability of a fuel battery glue line. The method includes: testing under different assembling force, high-low-temperature circulation testing and margin pressure testing. The method specifically includes: using a to-be-tested glue line to form a single battery, placing the single battery between the platform and pressing head of a universal testing machine, and connecting the hydrogen cavity, air cavity and cooling liquid cavity of the single battery with an airtightness testing platform; testing the airtightness of the single battery under different assembling force; performing high-low-temperature circulation on the cooling cavity of the single battery, and then testing the airtightness of the single battery; testing the airtightness of the single battery under different pressure of the hydrogen cavity, air cavity and cooling liquid cavity of the single battery; determining that the glue line satisfies the sealing requirement of a fuel battery if the tests meet the requirements. The method has the advantages that the sealing ability of the glue line can be judged, and the method is simple and convenient to operate, reliable in testing result, easy in testing process control, accurate in testing result, short in glue line testing period, and high in efficiency.
Description
technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to fuel cell sealing glue lines. Background technique [0002] In the prior art, the direct detection of the glue line only detects the hardness and macroscopic size of the glue line, and there is no detection method for whether the glue line is suitable for fuel cells. The detection of the life of the glue line depends on the corrosion resistance test, which is an indirect test. Corrosion resistance test is to test the corrosion sample block made of glue wire material. The disadvantages of corrosion resistance testing are: the detection period is long, and the sample block is not consistent with the actual working state of the glue line, so it is difficult to accurately judge whether the glue line is suitable for the fuel cell stack. Therefore, how to quickly, accurately and conveniently judge whether a glue line is suitable for fuel cell stacks is a technical problem to be s...
Claims
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IPC IPC(8): G01N19/04G01M3/00
CPCG01M3/00G01N19/04G01N25/00
Inventor 付宇王铎霖侯中军杜超窦永香
Owner SUNRISE POWER CO LTD