Dusty environment wet bulb indicator

Details Dusty environment wet bulb indicator Dusty environment wet bulb indicator

1990-03-09

1991-05-21

Yasich, Daniel M.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 2902, G01N 2564

Patent

active

050164724

ABSTRACT:
An apparatus and method for measuring the wet and dry bulb temperatures of a hot flue gas stream containing fly ash and particulates by providing a sample sheath (12) in a gas duct (10) with a dry bulb sensor (16) and a wet bulb sensor (18) located within the sample sheath (12). The sample sheath (12) includes a self-cleaning dust filter (14) which removes the ash and particulates from the flue gas stream and a self-regulating water reservoir (26, 28) to continuously supply water for the wet bulb sensor (18).

REFERENCES:
patent: 3603135 (1971-09-01), Kawaguchi
patent: 3934454 (1976-01-01), Simo
patent: 4175436 (1979-11-01), Crawford et al.
patent: 4222261 (1980-09-01), Leblanc et al.
patent: 4409834 (1983-10-01), Kethley
patent: 4412647 (1983-11-01), Lampert
patent: 4461167 (1984-07-01), Kent et al.
patent: 4559823 (1985-12-01), Rosen et al.
patent: 4625550 (1986-12-01), Sorensen
patent: 4856352 (1989-08-01), Daum et al.

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