Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Automatic analytical monitor and control of industrial process
Reexamination Certificate
2005-04-12
2005-04-12
Snay, Jeffrey R. (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Automatic analytical monitor and control of industrial process
C422S083000, C436S116000, C436S117000, C436S118000, C436S175000, C436S181000
Reexamination Certificate
active
06878339
ABSTRACT:
The present invention provides a NOx-concentration measuring apparatus D for quantitatively analyzing the concentration of NOx contained in a sample gas. The measuring apparatus D comprises a sampling probe for obtaining the sample gas, a drain separator2for condensing moisture contained in the sample gas as a condensed water and separating the condensed water from the sample gas, an NO2converter3for converting NO2contained in the sample gas into NO, a secondary cooling device7for additionally cooling the sample gas, and an NO analyzer1, arranged in this order with respect to a sample-gas line of the NOx-concentration measuring apparatus. The drain separator is a high-flow-velocity cooling type drain separator.Further, the sample-gas line between the sampling probe and the drain separator is heated and/or thermally insulated over the entire length thereof. The measuring apparatus can provide a high-precision measurement while suppressing NO2loss.
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Japanese Industrial Standard (JIS B 7982-1995), Continuous Analyzers For Oxides Of Nitrogen In Flue Gas, Japanese Standards Association.
Akiyama Shigeyuki
Fujiwara Masahiko
Inoue Satoshi
Horiba Ltd.
Snay Jeffrey R.
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