Device for taking samples of dust in a gas flow

Details Device for taking samples of dust in a gas flow Device for taking samples of dust in a gas flow

1978-03-09

1979-02-20

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Solid content of gas

734215A, G01N 122, B01D 5330

Patent

active

041400062

ABSTRACT:
A device for taking samples of dust in a pipe or a chimney discharging gases, into the atmosphere.
The device permits completely emptying the sampling tube of the dusts to be measured by means for rapidly and briefly closing the orifice of the sampling tube, which produces, once or several times during each sampling period, a pneumatic shock in the sampling tube which is subjected to pumping.
Such a device permits effecting particularly precise measurements of the concentration of dust by weight. It also permits a continuous utilization of the device during very long periods of time without its clogging up.

REFERENCES:
patent: 2484202 (1949-10-01), Wintermute
patent: 3229526 (1966-01-01), Kennedy
patent: 3794909 (1974-02-01), Smith
patent: 3803920 (1974-04-01), Homolya et al.
patent: 3841145 (1974-10-01), Boubel
Simpson, "A Fast Gas Valve for Plasma Sampling," Journal of Physics, vol. 8, No. 9, pp. 739-741, Sep. 1975.

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