Steam boilers

Details Steam boilers Steam boilers

1977-02-04

1978-04-25

Sprague, Kenneth W.

Liquid heaters and vaporizers

Industrial

Waste heat

1101825, 122235B, 431 5, F22B 118, F23J 500

Patent

active

040857085

ABSTRACT:
Described herein is a waste heat steam boiler which is capable of using as secondary combustion 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 adjustable 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.

REFERENCES:
patent: 2952310 (1960-09-01), Nuyl et al.
patent: 3789804 (1974-02-01), Aguet
patent: 3984196 (1976-10-01), Zenkner

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