Method and apparatus for sampling waste gases

Details Method and apparatus for sampling waste gases Method and apparatus for sampling waste gases

1980-11-04

1982-06-29

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

G01N 114

Patent

active

043367224

ABSTRACT:
A method and apparatus for continuously withdrawing a gas sub-sample from a chamber enclosing a source of waste gas for introduction of the sub-sample to a gas monitor. The method includes withdrawing a sample of the waste gas from the chamber by use of a vacuum source located exterior to the chamber. From the latter sample a sub-sample of waste gas is extracted prior to the waste gas entering the vacuum source. The sub-sample is then cooled below the ambient dew point so that condensate contained in the sub-sample is separated from the latter. The cooled sub-sample is then directed to a gas monitor for analysis of the gaseous components contained in the latter.

REFERENCES:
patent: 2895335 (1959-07-01), Kraftson
patent: 2987921 (1961-06-01), Kraftson
patent: 3593023 (1971-07-01), Dodson
patent: 3611812 (1971-10-01), Cleveland
patent: 4191541 (1980-03-01), Jenkins
patent: 4211116 (1980-06-01), Pilat et al.

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