Fluidized bed boilers

Details Fluidized bed boilers Fluidized bed boilers

1982-04-28

1984-05-22

Yuen, Henry C.

Liquid heaters and vaporizers

Miscellaneous

110255, 110259, F22B 102, F23D 1902

Patent

active

044494823

ABSTRACT:
A fluidized bed boiler having a water-wall type construction has a steam-water natural circulation system for heat exchange. Vertical in-bed heat exchange tubes are provided and the steam drum of the boiler extends across the full length of the boiler combustion chamber and the convection heat exchange chamber. An air distributor grate is provided for introduction of fluidizing air into the combustion chamber and the air flow therefrom can be controlled to afford a flexible turn-down capability.

REFERENCES:
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patent: 3983927 (1976-10-01), Steever et al.
patent: 4167918 (1979-09-01), Atabay
patent: 4184455 (1980-01-01), Talmud et al.
patent: 4250839 (1981-02-01), Daman
patent: 4253425 (1981-03-01), Gamble et al.
patent: 4267801 (1981-05-01), Robinson
patent: 4268244 (1981-05-01), Dawson
patent: 4287838 (1981-09-01), Frosch
patent: 4301771 (1981-11-01), Jukkola et al.
patent: 4357907 (1982-11-01), Campbell, Jr. et al.

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