Secondary air control damper arrangement

Details Secondary air control damper arrangement Secondary air control damper arrangement

F - Mech Eng,Light,Heat,Weapons

23

K

110/20

F23K 3/02 (2006.01) F23C 5/32 (2006.01) F23C 7/02 (2006.01) F23L 13/02 (2006.01)

Patent

CA 1210648

-12- SECONDARY AIR CONTROL DAMPER ARRANGEMENT ABSTRACT OF THE DISCLOSURE The outline of a tangentially-fired furnace combustion chamber is arranged to show a representative windbox in one cor- ner of the furnace. The secondary air is disclosed as supplied through one set of vertically tiltable nozzles mounted in the windbox. The secondary air supply conduit is mounted to feed the tiltable nozzles. The secondary air supply conduit section adjacent to the nozzles has straightening vanes forming channels in which independently controlled louvers regulate the total cross-sectional area of the channels to maintain the desired velocity of the secondary air through the nozzles.

446501

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