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1. WO1979000069 - APPARATUS FOR SIMULTANEOUS RECOVERY OF FRESH WATER AND SALT OR CONCENTRATED SALINE SOLUTION

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Claims

1. An apparatus for simultaneously recovering fresh water and sa or concentrated saline solution by direct collection of solar energy through special energy elements, characterized in that said energy elements each comprises two substantially horizontally arranged foils, which are jointed in longitudinal direction of the elements, for example by intermittent welding, in several places in the transverse direction, so that each energy element includes a pluralit of longitudinal gaps for transport of sea water, each of said energy elements at one end attached mechanically to inlets for sea water and at its remaining end attached mechanically to inlets on an evaporatio chamber for recovering fresh water in known manner.
2. An apparatus according to claim 1, characterized in tha said energy elements are divided into a plurality of units, that a first unit of said units comprises a plurality of energy elements connected in parallel, which on the inlet side are coupled mechanically to an inlet for surface water from the sea and on the outlet side are couple mechanically to an inlet on a first evaporation chamber, that an outle on the first evaporation chamber is coupled mechanically to an inlet on a second unit of said units, that an outlet on said second unit is coupled mechanically to an inlet on a second evaporation chamber, a. s. o. , and that an outlet on the last unit of said units is coupled mechanically to an inlet on a last evaporation chamber, the outlet of . which is coupled mechanically to a conventional water-works for evaporating the residual amount of water in the water pumped up fro the sea.
3. An apparatus according to claim 1 or 2, characterized in that the material in said energy elements consists of black plastic material, and said energy elements are covered by a foil of transparent plastic material in order to reduce convection losses between energy elements and ambient air.

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