Self-cleaning heat exchanger

Details Self-cleaning heat exchanger Self-cleaning heat exchanger

1983-06-30

1985-06-25

Yuen, Henry C.

Liquid heaters and vaporizers

Industrial

Waste heat

110212, 165DIG8, 122367R, F22D 100

Patent

active

045247250

ABSTRACT:
A novel heat exchanger for recuperating heat from a combustion gas stream is disclosed. The heat is recuperated in a steam generator formed from a shell and tube heat exchanger. To reduce deposits on the combustion gas side of the heat exchanger the tube walls are porous so that the pressure across the tube walls during steam generation will continuously drive a small amount of water or steam from the liquid side to the smoke side to remove deposits on the tubes.

REFERENCES:
patent: 2733693 (1956-02-01), Johnson
patent: 3703919 (1972-11-01), Owens et al.
patent: 3785350 (1974-01-01), McCormick
patent: 3946679 (1976-03-01), Varani
patent: 4267801 (1981-05-01), Robinson
patent: 4273073 (1981-06-01), Robinson
patent: 4316774 (1982-02-01), Trusch
patent: 4354440 (1982-10-01), McRee, Jr.
patent: 4402915 (1983-09-01), Nishizaki et al.
patent: 4405440 (1983-09-01), Gwyn
patent: 4416418 (1983-11-01), Goodstine et al.

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