Stoves and furnaces – Hot-air furnaces – Air baffles
Patent
1994-08-11
1996-01-09
Jones, Larry
Stoves and furnaces
Hot-air furnaces
Air baffles
126110K, 126101, 126117, 110267, 110347, 110106, F24H 300
Patent
active
054820278
ABSTRACT:
A furnace apparatus which includes a plurality of water walls. Each includes a plurality of tubes and the water walls collectively enclose a combustion chamber. The apparatus includes a plurality of windboxes, each of the windboxes is disposed intermediate adjacent water walls. A pulverizer and ducting to direct the flow of pulverized coal to the windboxes is also a part of the apparatus in accordance with the invention as is a bisector regenerative air heater having a rotor a housing having a generally cylindrical cavity in which a drum shaped rotor having heat transfer surfaces thereon is mounted for rotation on a shaft. The heater includes ducting for directing flue gas and forced draft air respectively into first and second angular sectors of the cavity which at any one instant will flow over respective angular sectors of the rotor. The rotor is heated during the travel of any portion thereof in the first angular sector and is cooled in the second angular sector. The apparatus also includes an elongated duct for conducting all of the forced draft air out of the heater and first apparatus for ducting. The first apparatus for ducting directs only the forced draft air flowing over a portion of the rotor immedeately after passage of each portion thereof from the first angular sector into the second angular sector; and second apparatus for ducting, the second apparatus for ducting directing the forced draft air from the first apparatus for ducting to the pulverizer.
REFERENCES:
patent: 3774374 (1973-11-01), Dufour et al.
patent: 4442783 (1984-04-01), Pajonos et al.
patent: 4967726 (1990-11-01), Finch
patent: 4995808 (1991-02-01), Pink et al.
patent: 5005556 (1991-04-01), Astle, Jr.
Combustion Engineering Inc.
Jones Larry
Smith Robert S.
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