Patent ID: 8282790
Filing Date: 2012-10-09
Classification: B01D,C02F,F02G,F04C,F28D,G01F,G05B,Y02A,Y02E

Abstract:
1. A method for distilling a liquid in a liquid vapor distillation system comprising: preheating liquid in a sump; vaporizing the liquid in the sump, through an evaporator, to form a vapor to fill a head chamber, the evaporator comprising a plurality of parallel evaporator tubes, each tube having a first open end in communication with the sump and a second open end in communication with a head chamber; compressing the vapor by rotating the vapor in a vapor pump using an internal drive shaft and eccentric rotor with a rotatable housing an electric motor having motor rotor and motor magnets hermetically sealed within a liquid pressure boundary of the vapor pump; condensing the compressed vapor into a distilled liquid product; post-treating the distilled liquid product; maintaining a liquid level in the head chamber sufficient to permit both purification of the vapor and damping of local turbulence; and diverting a blowdown stream from the head chamber maintaining a constant liquid level in the head chamber.