Steam boilers

Details Steam boilers Steam boilers

1977-06-06

1978-08-29

Sprague, Kenneth W.

Liquid heaters and vaporizers

Plants

Feed water heaters

110302, 122240B, 122479E, 122 7B, 431 12, F22B 3300, F23C 108, F22G 100

Patent

active

041096134

ABSTRACT:
There is always a danger of slagging on and/or corrosion of the tubes of the highest temperature superheater bank and, if present, reheater bank when burning heavy bunker fuel oil. Therefore a clean fuel burning furnace is provided which is separate from the heavy bunker fuel oil burning furnace and only the combustion gases from burning the clean fuel are used to heat the highest temperature superheater bank and, if present, reheater bank. The clean fuel is preferably provided by a gasifier in which a portion of the heavy bunker fuel oil is pre-combusted to give a clean combustible fuel gas.

REFERENCES:
patent: 2867195 (1959-01-01), Hauck et al.
patent: 2867983 (1959-01-01), Armacost
patent: 3135244 (1964-06-01), Caracristi
patent: 3135245 (1964-06-01), Powell et al.
patent: 3135314 (1964-06-01), Brunner
patent: 3166909 (1965-01-01), Best, Jr.
patent: 3241597 (1966-03-01), Juzi

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