Gas and liquid contact apparatus – With external supply or removal of heat – Processes
Patent
1980-03-05
1981-09-01
Chiesa, Richard L.
Gas and liquid contact apparatus
With external supply or removal of heat
Processes
81491, 81493, 34 37, 55 89, 261115, 261116, 261118, 261151, 261DIG27, B01F 304
Patent
active
042871387
ABSTRACT:
A method is disclosed for recovering and reclaiming heat from a source of relatively hot gases, which are preferably substantially vapor-saturated, by directly contacting the gases with a relatively cooler spray of liquid, such as water, in a heat exchange zone. The relatively warm liquid resulting from the contact of the sprayed cooler liquid with the vapor-saturated gases are collected in a receiver zone in the heat exchanger. This relatively warm liquid is then available for use. The hot gases which entered the heat exchanger will exit at a cooler temperature. They may be released to the atmosphere or returned to a process or room. The method is particularly suited for recovering heat from steam system condensate vents, dye fixation steamer exhausts, boiler exhaust stacks, and dry can enclosures such as those used in the textile and paper industry.
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