High rate solar still and process

Patent · Tue Sep 23 04:00:00 EDT 1986

OSTI ID:5159213

Volland, C S

A solar still apparatus is described which consists of: (a) an elongated salt gradient solar pond defining a heat storage section containing a hot liquid; (b) an evaporator module supported within the solar pond for rotation about a substantially horizontal axis and submerged within the heat storage section thereof; (c) influent conduit means for directing feedwater into the distribution shaft for distribution of same through the openings in the shaft into the housing; (d) means for rotation of the evaporator module about a substantially horizontal axis; (e) means for withdrawing the vapor formed in the evaporator module; and (f) means for condensing the vapor withdrawn from the evaporator module. A method of purifying raw feedwater is described which consists of: (a) directing raw feedwater into an evaporator module submerged in a body of heated liquid; (b) directing heating liquid from the body of heating liquid through the heat transfer tubes; (c) rotating the evaporator module about a substantially horizontal axis; (d) distributing raw feedwater with the evaporator module; (e) withdrawing vapor formed in the evaporator module; and (f) condensing the vapor withdrawn from the evaporator module.

• Assignee: NOV; EDB-86-182031; NOV-85-026078
• Patent Number(s): US 4613409
• OSTI ID: 5159213
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140909* -- Solar Thermal Utilization-- Miscellaneous Solar Applications-- (1980-)
DESIGN
ELONGATION
ENERGY STORAGE
ENERGY TRANSFER
EQUIPMENT
EVAPORATORS
FEEDWATER
HEAT EXCHANGERS
HEAT STORAGE
HEAT TRANSFER
HYDROGEN COMPOUNDS
MACHINE PARTS
MOTION
OXYGEN COMPOUNDS
PONDS
POSITIONING
ROTATION
SALINITY GRADIENTS
SEALS
SHAFTS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR PONDS
SOLAR STILLS
SPACE DEPENDENCE
STORAGE
SURFACE WATERS
VAPOR CONDENSATION
WATER