Device and method for dehumidifying atmospheric particulate matter
A technology for atmospheric particulate matter and particulate matter, applied in separation methods, measuring devices, particle suspension analysis, etc., can solve the problems of difficult to achieve efficient dehumidification, the outer wall of the inner drying tube is polluted, and the drying efficiency is reduced, so as to improve the dehumidification of the sample gas. Efficiency, convenient post-cleaning and maintenance, and solving expensive effects
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[0029] The present invention will be further described below in conjunction with accompanying drawing:
[0030] Such as figure 1 An atmospheric particle dehumidification device shown includes a Nafion tube dehumidification unit 100 , a particle characteristic parameter measurement unit 200 , a particle purification unit 300 and an air pump 400 .
[0031]Further, the Nafion tube dehumidification unit 100 includes an outer tube 106 and an inner tube 105 embedded in the middle of the outer tube 106 . The Nafion tube dehumidification unit is cylindrical or planar, and the inner tube 105 is at least one. The planar Nafion tube is mainly to increase the contact area between the sample gas and the inner tube wall, thereby reducing the length of the Nafion tube. A purge gas passage is formed between the inner wall of the outer tube 106 and the outer wall of the inner tube 105 . The upper and lower ends of the side wall of the outer tube 106 are respectively provided with a purge ga...
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