Sample gas intake system for on-line gas chromatographic detection
A technology of air intake system and gas chromatography, which is applied in the field of gas analysis, can solve the problems of sample gas sampling lag and easy damage of sampling pumps, and achieve accurate detection results and good stability
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[0012] Combine figure 1 , 2 3. A sample gas intake system for online gas chromatography detection, the intake end of the sampling pump 10 is connected to the gas source, and the gas outlet end of the sampling pump 10 is connected to the first intake port 31 of the reversing valve assembly 30; The air inlet 41 of the sample gas quantitative storage unit 40 is connected to the first air outlet 32 of the reversing valve assembly 30, and the air outlet 42 of the sample gas quantitative storage unit 40 is connected to the second air inlet 33 of the reversing valve assembly 30. The second air outlet 34 of the reversing valve assembly 30 is connected to the first exhaust port 61 via the buffer tank 50; the carrier gas pipeline 70 is connected to the third air inlet 35 of the reversing valve assembly 30, the reversing valve assembly The third air outlet 36 of 30 is connected to the detection unit. The sample gas quantitative storage unit 40 can be understood as a section of pipeline,...
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