Method and apparatus for sampling gas from a hot dust-filled gas

Details Method and apparatus for sampling gas from a hot dust-filled gas Method and apparatus for sampling gas from a hot dust-filled gas

1993-07-19

1995-05-09

Raevis, Robert

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

7386323, G01N 114

Patent

active

054130018

ABSTRACT:
There is disclosed a method and apparatus for sampling gas from a hot dust-filled gas stream using a gas probe so arranged as to protrude into a gas- and dust-filled atmosphere, wherein the probe samples a gas portion of said gas stream, wherein the sample gas portion is sucked through the probe by a gas pump connected to the probe, and wherein at least a portion of the sample gas portion is first separated from suspended impurities and then fed to an analysis apparatus. The method and apparatus are further characterized in that the clogging or forming of bakings in the probe of dust suspended in the sample gas portion is prevented by activating said dust in the probe by means of a dust activation device comprising at least one of a laser emitter or means for deionization of the dust particles prior to filtration of the sample in the probe.

REFERENCES:
patent: 3520015 (1970-07-01), Deynat
patent: 4666530 (1987-05-01), Houser
patent: 5039322 (1991-08-01), Holzl
patent: 5237881 (1993-08-01), Ross

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