On-line aerosol carbon component collecting analyser
A technology for collecting and analyzing aerosols, which is applied in the direction of material analysis, material analysis by optical means, instruments, etc., which can solve problems such as unusable, wasteful use of cylinder gas, and inability to change analysis method parameters in time to achieve normal analysis work, save usage, and facilitate operation and maintenance
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[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] like figure 1 As shown, the present invention mainly includes two parts: a carrier gas gas path system 1 and a sampling-analysis gas path system 2 .
[0030] The carrier gas gas path system 1 of the present invention includes a He gas path 11, a He-purge (He-purge) gas path 12, a He / Ox gas path 13 and a He / CH gas path 4 Gas circuit 14, wherein:
[0031] The He gas circuit 11 is composed of a pressure reducing valve 110 , a two-way solenoid valve 111 , a mass flow controller 112 and a three-way solenoid valve 113 connected in sequence. The gas outlet of the mass flow controller 112 is connected to the NO end (normally open end) of the three-way solenoid valve 113, and the He gas circuit 11 is mainly used to control the main carrier gas He gas.
[0032] The He-purge gas path 12 is composed of a restrictor tube 120 and a flow detector 121, and ...
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