Heat exchanger with by-pass

Heat exchange – Movable heating or cooling surface – Rotary drum

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Details

165 39, 165 40, 165103, 165DIG2, 165134DP, G05D 2300, B60H 100, F28F 2702

Patent

active

044985240

ABSTRACT:
A method and means for extracting heat from an exhaust stack under highly corrosive and fluctuating conditions. An in-line exhaust gas heat exchanger having selective dual concentric exhaust paths and having a plurality of longitudinal structural stringers to insure against weakening of the exhaust stack. A plurality of heat exchanger coils are located in the outermost exhaust path and means is provided for fully draining the liquid contents thereof. Temperature control method means is provided for regulating the temperature of fluid within the coils due to exhaust stack temperature fluctuations for controlling critical dew point situations.

REFERENCES:
patent: 687735 (1901-12-01), Elmendorf
patent: 780736 (1905-01-01), Stack
patent: 1633759 (1927-06-01), Breese, Jr.
patent: 1885267 (1932-11-01), Kalfus
patent: 2521866 (1950-09-01), Ott
patent: 2823026 (1958-02-01), D'Amico et al.
patent: 3062510 (1962-11-01), Percival
patent: 3223150 (1965-12-01), Tramontini
patent: 3392777 (1968-07-01), Edgemond, Jr. et al.
patent: 3991821 (1976-11-01), Cook et al.
patent: 4319630 (1982-03-01), Hronek et al.

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