Gas permeability test device
A technology of gas permeability and testing equipment, which is applied in the direction of measuring equipment, permeability/surface area analysis, suspension and porous material analysis, etc. It can solve the problem that the sample cannot be effectively sealed and controlled, the testing process cannot be fully controlled, and multi-chamber The test cannot be independently controlled and other problems, so as to avoid the interference of external adverse factors, improve the detection accuracy, and achieve the effect of comprehensive control
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[0026] Example 1:
[0027] A gas permeability testing device, combined figure 1 , Including six parts of permeation pool, connecting pipeline, vacuum pump 8, pressure sensor, valve, and gas source. The permeation cell is divided into a test chamber 11 and a test gas chamber 9 by the sample 10; the test chamber 11 is connected to the pressure sensor I12, and is connected to the vacuum pump 8 through the pipeline I14, and the pipeline I14 is provided with a valve I15; the test gas chamber 9 It is connected to the pressure sensor II5, and is respectively connected to the vacuum pump 8 and the test gas source 1 through the pipeline II6 and the pipeline III3. The pipeline II6 is provided with a valve II7, and the pipeline III3 is provided with a valve III2. The vacuum pump 8 is connected to the test chamber 11 and the test gas chamber 9 through the pipeline I14 and the pipeline II6, respectively. By controlling the state of the valve I15 and the valve II7, it can vacuumize each side o...
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[0029] Example 2:
[0030] A gas permeability testing device, combined figure 2 , Is a three-cavity test structure of the present invention, that is, the number of permeation cells can be increased in the present invention to increase the test station and realize independent control for multi-cavity testing. It includes six parts: permeation pool, connecting pipeline, vacuum pump 8, pressure sensor, valve, and gas source. Each permeation cell is divided into two parts: test chamber and test gas chamber by sample. 1# permeation cell is divided into 1# test chamber 24 and 1# test gas chamber 22 by 1# sample 23, and 2# permeation cell is divided into two parts. #Sample 32 is divided into 2# test chamber 33 and 2# test gas chamber 31. 3# permeation cell is divided into 3# test chamber 42 and 3# test gas chamber 40 by 3# sample 41. Each test cavity is connected to the corresponding pressure sensor I, and is respectively connected to the vacuum pump 8 through the pipeline I. The pip...
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