Heating – Processes of heating or heater operation – Controlling flame position or work atmosphere
Patent
1979-09-12
1981-03-10
Camby, John J.
Heating
Processes of heating or heater operation
Controlling flame position or work atmosphere
432 2, 432 23, 432 29, 432 48, 432 72, F26D 704, F27B 904
Patent
active
042551323
ABSTRACT:
A high efficiency system and method for supplying heat energy to a combustible effluent producing primary process, such as to a paint drying oven, in which the output of an incinerator-heater is controlled in order to be matched to the heat energy requirements of the process. At the same time, the incinerator burner temperature is sufficiently high to incinerate the combustible effluent developed by the primary process. Effluent laden air is circulated from the process site through a preheat heat exchanger into which is transferred a portion of the heat of the incinerated air prior to entry into the incinerator chamber. The incinerated air is recirculated to the process site in order to provide the heat energy requirements of the drying oven or other process. A proportion of the incinerated air is vented to an exhaust stack via an air-to-air heat exchanger which preheats incoming fresh air circulated to the process site to make up the vented flow of incinerated air. A temperature controller modulates the incinerator burner temperature, as well as the action of a bypass damper causing controlled bypassing of the preheat heat exchanger by the effluent laden air in order to match the heat output of the system to the requirements of the process.
REFERENCES:
patent: 3627290 (1971-12-01), Grieve
patent: 3917444 (1975-11-01), Carthew
patent: 3947235 (1976-03-01), Bornert
Camby John J.
Schweitzer Industrial Corp.
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