Fluidized bed heat exchanger with water cooled air distributor a

Liquid heaters and vaporizers – Miscellaneous

Patent

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Details

110245, F22B 102

Patent

active

043017711

ABSTRACT:
A fluidized bed heat exchanger is provided in which air is passed through a bed of particulate material containing fuel. A steam-water natural circulation system is provided for heat exchange and the housing of the heat exchanger has a water-wall type construction. Vertical in-bed heat exchange tubes are provided and the air distributor is water-cooled. A water-cooled dust hopper is provided in the housing to collect particulates from the combustion gases and separate the combustion zone from a volume within said housing in which convection heat exchange tubes are provided to extract heat from the exiting combustion gases.

REFERENCES:
patent: 3387590 (1968-06-01), Bishop
patent: 3736908 (1973-06-01), Ehrlich et al.
patent: 3833051 (1974-09-01), Frank
patent: 3983927 (1976-10-01), Steever et al.
patent: 4183330 (1980-01-01), Bryers et al.
patent: 4184455 (1980-01-01), Talmud et al.
patent: 4253425 (1981-03-01), Gamble et al.

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