Combustion furnace with proportional underfire/overfire air inta

Details Combustion furnace with proportional underfire/overfire air inta Combustion furnace with proportional underfire/overfire air inta

1987-04-02

1989-05-16

Warner, Steven E.

Furnaces

Combined

With boiler

110210, 110302, 126513, 126527, 237 19, F23B 700

Patent

active

048299146

ABSTRACT:
A solid fuel combustion chamber combusts the fuel utilizing underfire and overfire air. Both the underfire and overfire air derive from a common intake port, with a controllable vane determining the ratio between the two air sources. Gas flow from the solid fuel combustion chamber enters a gas combustion chamber designed to produce turbulence and thereby promote further combustion. The gas flow is then accelerated in a gas flow chamber and directed to the circulating fluid carrying tubes of a heat exchanger. The heat exchanger includes a condensation chamber which extracts sufficient heat from the gas flow to produce a condensate. An injection system superheats the condensate and injects it into the solid fuel combustion chamber to thereby reduce residue accumulation.

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