Sampling probe for stack gas monitoring system

Details Sampling probe for stack gas monitoring system Sampling probe for stack gas monitoring system

1981-12-21

1983-04-12

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

7386473, G01N 124

Patent

active

043794122

ABSTRACT:
A tube closed at the end by plugs having axial bores therein and which support a hollow, porous walled cylinder concentrically within the tube to form a conduit interconnecting the plug bores while allowing a clearance space between the cylinder outer wall and the tube inner wall. A combined ejector-blowback valve is secured to one plug externally of the tube for inducing gas flow through the plug bores and cylinder in one valve position and for reversing flow through the plug bores and cylinder in a second valve position to dislodge and discharge adherent material. The probe is mounted with the end opposite the ejector-blowback valve extending into the gas stream to be sampled. Gas samples are withdrawn from the clearance space surrounding the cylinder. The probe is constructed substantially entirely of corrosion and temperature resistant ceramic material.

REFERENCES:
patent: 1809325 (1931-06-01), Austin et al.
patent: 3070990 (1963-01-01), Krinov
patent: 3289481 (1966-12-01), Barnes
patent: 3759087 (1973-09-01), Iwao
patent: 4161883 (1979-07-01), Land et al.

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