Normal temperature enrichment and sampling method for xenon in air, and apparatus thereof
A normal temperature, enrichment technology, applied in the field of nuclear environmental monitoring, can solve the problems of inability to sample and realize continuous sampling, and achieve the effects of strong representativeness, reduced complexity, and reduced difficulty of implementation
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[0030] Device of the present invention:
[0031] Air pretreatment unit: Air dryer 2, gas mass flow meter MFM, hollow fiber semi-permeable membrane group 3, gas dew point meter RH, oxygen content detector O are installed in sequence on the connecting pipe at the outlet of air compressor 1 2 , Gas mass flow controller MFC0 and valves V0, V0 are connected to valves V1, Va11, Vb11 through two three-way or one four-way joints;
[0032] Primary adsorption unit: Va11 connects pressure transmitter Pa1, valve Va12 and primary adsorption column Ca1 through two three-way or one four-way joints, and the outlet of Ca1 is connected through two three-way or one four-way joints after passing through the filter Valves Va13, Va14, Va15; Vb11 are connected to pressure transmitter Pb1, valve Vb12 and primary adsorption column Cb1 through two three-way or one four-way joints, and the outlet of Cb1 passes through two three-way or one four-way after passing through the filter The joints are connect...
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