Device for desalting brackish water, and a conditioning method and device relating to said desalting device

Claim 1

Apparatus comprising means for decreasing the rate of temperature increase in an enclosed space while obtaining purified water from brackish water including: wall means for defining an eclosed space; optical means for intercepting solar energy impacting on a portion of said wall means and for focusing the intercepted solar energy in a focused region within the enclosed space so as to prevent uncontrolled heating of the enclosed space by the intercepted solar energy; an enclosure totally encompassed within the enclosed space and containing brackish water, a portion of the brackish water lying in the focused region so that the energy of the intercepted solar energy is imparted to and heats the brackish water to cause evaporation therefrom; heat extracting means within said enclosure for contacting and condensing evaporated water; collecting means for collecting condensed water and for removing the condensed water from said enclosure; and means for circulating coolant liquid from a source exterior of said enclosed space through said enclosure in heat exchange relationship with said heat extracting means and for discharging the coolant liquid to the exterior of the enclosed space so that the coolant liquid is heated during its passage through the enclosure to thereby enhance condensation of the evaporated water and remove the energy of the intercepted solar energy and transfer same to the exterior of the enclosed space.