Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1982-05-03
1985-10-01
Chin, Peter
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
422176, 422182, 422220, F01H 310
Patent
active
045445265
ABSTRACT:
An oven heat exchanger system which may be used in conjunction with painting ovens or similar processes. In conventional oven heat exchangers or the like, effluent gases exiting from a painting oven are received through a heating chamber, which causes the temperature of the oven effluent gases to rise to a level required for oxidation. The effluent then reacts with a catalyst to oxidize the effluent, in part, to CO.sub.2 and H.sub.2 O. In the claimed invention, the heated effluent leaving the heating chamber enters an elbow duct in which spaced arcuate vanes are located. The curvature of the arcuate vanes are such that the heated effluent gases exiting the elbow duct is substantially laminar in flow. Heated effluent exiting the elbow duct is then received through a perforated plate which causes the heated effluent to be uniformly distributed as it enters a heater catalyst. The laminar flow of the heated effluent gas created by the elbow duct, and the uniform distribution of the heated effluent created by the perforated plate, increases the efficiency by which the hydrocarbons and other oxidizable substances in the oven effluent are oxidized by the heater catalyst and thereby increases the temperature of the oxidized effluent exiting the heater catalyst. This increase in temperature of the oxidized effluent increases the amount of heat which is transferred by the heat exchanger to ambient air entering the oven. As a result, the overall efficiency of the heat exchanger is increased, as less heat is needed to raise the temperature of ambient air entering the oven. In addition, the amount of unoxidized hydrocarbons vented to atmosphere is minimized, thus reducing environmental pollution.
REFERENCES:
patent: 3486841 (1969-12-01), Betz
patent: 3597166 (1971-08-01), Hochman
patent: 3836338 (1974-09-01), Arnold
patent: 4140625 (1979-02-01), Jensen
patent: 4322386 (1982-03-01), Masutomi et al.
Chin Peter
Durr Industries, Inc.
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