Hot gas recycle for starved-air combustor

Details Hot gas recycle for starved-air combustor Hot gas recycle for starved-air combustor

1980-05-09

1982-05-25

Yuen, Henry C.

Furnaces

With exhaust gas treatment means

Recirculation means

110205, 432 72, 432105, F23B 502, F23C 900

Patent

active

043310869

ABSTRACT:
A hot combustion gas recycle apparatus for a starved-air combustor for mixing hot combustion gas with significant amounts of air to heat the air. The heated air is injected as underfire air into the first combustion zone of the combustion chamber to heat and to dry the fuel in the fuel bed as an aid to combustion efficiency. The recycle device includes a temperature control system for controlling the ratio of gas to air and a control valve to completely shut off the flow of combustion gas to the recycle device if the gas and air mixture exceeds a preset maximum.

REFERENCES:
patent: 2603195 (1952-07-01), Permann
patent: 3776151 (1973-12-01), Wilson
patent: 3785306 (1974-01-01), Jaget
patent: 3854455 (1974-12-01), Carson et al.
patent: 3916807 (1975-11-01), Eiki
patent: 3917444 (1975-11-01), Carthew
patent: 4037543 (1977-07-01), Angelo
patent: 4060042 (1977-11-01), Banaldi et al.

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