Distillation: apparatus – Apparatus – Systems
Patent
1975-08-11
1976-09-14
Sofer, Jack
Distillation: apparatus
Apparatus
Systems
202180, 202181, 202202, 202234, 202241, 203 14, C02B 108
Patent
active
039805263
ABSTRACT:
A water distillation unit is disclosed herein. The unit preferably comprises an upper boiler container and a lower condensation container which are rigidly maintained in spaced apart relationship by a molded coupling member containing a plurality of water passageways and fittings. The coupling member is integral with the condensation container and is removably and threadably attached to the upper boiler container so that same may be easily removed when desired for cleaning. The boiler container receives raw liquid which is vaporized by an interiorly disposed heater element. The condensation container houses a condenser tube which receives steam from the boiler container and conducts distillate exteriorly of the apparatus. To improve thermal efficiency the condenser tube is cooled by raw liquid which is routed through the condensing container. Additional thermal efficiency is insured by passing the raw liquid through a pre-heating tube operatively associated in heat exchange relationship with the condenser tube within the condenser chamber. An orifice is provided within the boiler container for draining mineral residue solution therefrom, and means responsive to agitation of liquid within the boiler container are provided to continuously and automatically maintain fluid flow integrity through the drain orifice by preventing mineral residue buildup. The latter effect is enhanced by diluting mineral residue solution exiting from the drain orifice with the raw cooling liquid transmitted through the condensing container. An alternative embodiment of this invention employs a plurality of preferably spirally wound, vertically spaced apart vaporizing heater elements which are disposed in separately mounted immersion pans, thereby increasing liquid capacity. The latter unit additionally includes a preferably spirally wound heat exchange tube disposed within a separate heat exchange chamber through which raw liquid passes to precondense vapor, thereby enhancing thermal efficiency.
REFERENCES:
patent: 1762898 (1930-06-01), Sorenson
patent: 2217266 (1940-10-01), Cookson
patent: 2441361 (1948-05-01), Kirgan
patent: 2616839 (1952-11-01), Ames
patent: 3278395 (1966-10-01), Rubinowitz
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