Online pretreatment device of chromatography gas sample and use method thereof
A pretreatment device and chromatographic technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effects of accurate analysis data, stable and reliable work, and easy installation
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[0032] (1) Pretreatment device for online chromatographic analysis of ethylene cracking furnace sample gas:
[0033] Water and heavy hydrocarbons are entrained in the sample gas of the ethylene cracking furnace; the pretreatment device includes: a box body 11, a buffer settling tank 2, a visible drain tank 4 that can observe the liquid level, a drain valve 5, and a gas filter 6. The pressure regulating valve 8 is located behind the pressure regulating valve 8 and the cleaning switching valve 9 is used to heat the electric heater 10 of the box body 11, the box body insulation layer, and the connecting pipeline; the connecting pipeline of the pretreatment device is made of stainless steel, Its inner surface is treated with super-hydrophobic paint to form an ultra-micro-nano structure with low surface tension, and the wall surface is distributed with small protrusions of about 10 microns composed of an ultra-micro structure of about 100 nanometers; the cleaning switching valve 9 i...
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