High rate solar still and process

Details High rate solar still and process High rate solar still and process

1985-08-19

1986-09-23

Bascomb, Wilbur

Distillation: processes, separatory

Water purification only

203100, 203DIG1, 126415, 159 112, 159 12, 159 261, 159901, 159903, 202172, 202175, 202233, 202234, 202237, 202238, C02F 114

Patent

active

046134093

ABSTRACT:
A method and apparatus for purifying raw feedwater. The raw feedwater is directed into an evaporator module submerged in a solar pond or other body of heated liquid. The evaporator module includes a rotating housing through which a plurality of spaced apart substantially horizontal open ended heat transfer tubes extend. A heating liquid is directed through the heat transfer tubes. The raw feedwater is distributed within the evaporator module so as to cause the feedwater to descend into heat transferring contact with the heat transfer tubes and thereby vaporize a portion of the feedwater. The vapor formed in the evaporator module is withdrawn from the evaporator module and directed to a suitable condensor.
A preferred embodiment of the evaporator module is disclosed which includes cavitation fins or urging the heated liquid through the evaporator module.

REFERENCES:
patent: 1150605 (1915-08-01), Kermer
patent: 2385074 (1945-09-01), Guignard
patent: 2735807 (1956-02-01), Banker
patent: 2865445 (1958-12-01), Buchler
patent: 3369977 (1968-02-01), Bechard
patent: 3394054 (1968-07-01), Hoham
patent: 3717554 (1973-02-01), Ruthrof
patent: 4110172 (1978-08-01), Spears
patent: 4267022 (1981-05-01), Pitcher
patent: 4479486 (1984-10-01), Manning et al.
patent: 4498300 (1985-02-01), Assaf et al.

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