F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/40
F22B 33/00 (2006.01) F22B 1/18 (2006.01) F23C 7/00 (2006.01)
Patent
CA 1065701
STEAM BOILERS ABSTRACT OF THE DISCLOSURE Described herein is a waste heat steam boiler which is capable of using as secondary combusion air, the exhaust gases from a steam turbine. The boiler has burners which are fed with primary combustion air by an air blower. This air is cool and can be used to keep part of the burners cool. The burners have throats supplied with secondary combustion air from a windbox which receives this secondary air either from the gas turbine or from a forced draught fan. The burner throats are adjust- able between an open full quarl position when the secondary air is the gas turbine exhaust and a partially closed position where the effective quarl diameter is reduced when the secondary air is supplied by the forced draught fan.
271040
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