Gas and liquid contact apparatus – With external supply or removal of heat – Processes
Patent
1980-04-04
1981-06-30
Chiesa, Richard L.
Gas and liquid contact apparatus
With external supply or removal of heat
Processes
73204, 137 90, 219272, 219273, 261121R, 261131, 261142, 261DIG65, B01F 304
Patent
active
042762430
ABSTRACT:
A method is disclosed for controlling the delivery of vapor from a bubbler containing a supply of liquid through which a carrier gas is bubbled and from which bubbler vapor is delivered in a vapor stream entrained with the carrier gas. The method comprises the steps of sensing the ratio of vapor to carrier gas in the vapor stream and applying heat to the liquid within the bubbler at rates relative to the sensed ratios of vapor to carrier gas being delivered from the bubbler in a vapor stream to hold the ratio constant.
A vapor delivery control system is also disclosed which comprises a vaporizer, a heater thermally coupled with the vaporizer, and means for maintaining a supply of liquid in the vaporizer. The system further includes means for introducing a carrier gas into the vaporizer, means for conducting the carrier gas and vapors of the liquid entrained with the carrier gas from the vaporizer, means for sensing the ratio of vapor to carrier gas being conducted from the vaporizer, and means for controlling the heater responsive to the ratio of vapor to carrier gas sensed by the sensing means to hold the ratio constant.
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patent: 3323784 (1967-06-01), Fazio
patent: 3528418 (1970-09-01), Grosholz et al.
patent: 3583685 (1971-06-01), Boerger et al.
patent: 3650151 (1972-03-01), Drexel
patent: 3771260 (1973-11-01), Arenson
patent: 3937063 (1976-02-01), Kethley
patent: 3938384 (1976-02-01), Blair
patent: 3939858 (1976-02-01), LeMay
patent: 4091056 (1978-05-01), Hamalainen et al.
patent: 4110419 (1978-08-01), Miller
Chiesa Richard L.
Kennedy Robert B.
Western Electric Company Inc.
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