Method of and apparatus for improving the heat exchange in natur

Details Method of and apparatus for improving the heat exchange in natur Method of and apparatus for improving the heat exchange in natur

1977-05-20

1978-11-07

Yudkoff, Norman

Concentrating evaporators

Processes

Involving waste liquid

159 16S, 159 27A, 159 27B, 159 17R, B01D 100

Patent

active

041244389

ABSTRACT:
Heat exchange is improved in natural-circulation and flowthrough evaporators in which the liquid to be evaporated is admitted to heating tubes and evaporators therein as the fluid rises in the tubes. According to the invention the liquid is preheated under a higher hydrostatic pressure than at the inlet to the heating tubes by treatment with direct steam, preferably in a steam-jacketed siphon tube forming a downcomer from a separator removing concentrate from the vapors emerging from the evaporator.

REFERENCES:
patent: 411012 (1889-09-01), Chapman
patent: 521974 (1894-06-01), Cooper
patent: 1028738 (1912-06-01), Kestner
patent: 1060607 (1913-05-01), Kestner
patent: 1191108 (1916-07-01), Kestner
patent: 1945281 (1934-01-01), Leithauser
patent: 2184579 (1939-12-01), Brucke
patent: 2519618 (1950-08-01), Wilson
patent: 2676651 (1954-04-01), Lavigne
patent: 2954013 (1960-09-01), Stengel

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