Apparatus for desalting saline water

Details Apparatus for desalting saline water Apparatus for desalting saline water

1975-12-17

1977-06-21

Sofer, Jack

Distillation: apparatus

Apparatus

Systems

202236, 203 11, 203 26, 203 89, 159 18, B01D 302, B01D 300, B01D 126

Patent

active

040309851

ABSTRACT:
Saline water is desalted by flowing it in two evaporation stages in series in the form of a film falling on the inside of heat-exchange tubes. The pressure and temperature in the second evaporation stage are lower than in the first stage. The steam evolved in the second stage is compressed and delivered to the first stage where it condenses on the tubes, whereas the steam evolved in the first stage is fed in the second stage where it condenses on the tubes. The condensation heat of the steam is used for vaporizing said saline water from said film. This technique allows a production of 15-50 cu.m/hr of soft water, instead of a production of 15-20 cu.m/hr usually obtained by conventional thermocompression techniques.

REFERENCES:
patent: 3021265 (1962-02-01), Sadtler et al.
patent: 3165435 (1965-01-01), Henszey
patent: 3356125 (1967-12-01), Standiford
patent: 3481835 (1969-12-01), Carnavos
patent: 3503433 (1970-03-01), Riva et al.
patent: 3875988 (1975-09-01), Machida et al.

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