SU966442A1 - Method of desalinating water in solar desalination plant - Google Patents

Description

The invention relates to solar technology and can be used in the desalination of salt water in a solar desalination plant.

A known method of desalination of salt water by heating water, blowing the surface of evaporation with air and condensing the distillate

The disadvantage of this method is the cooling of salt water that accompanies the blowing of the evaporation surface by air flow.

The purpose of the invention is to reduce heat noTe2Ji B desalination plant.

The goal is achieved by the desalination of salt water in a solar desalination plant; by heating the water, blowing off the evaporation surface with air and condensing the distillate, the air is preheated before blowing the evaporation surface.

FIG. 1 shows an installation variant for carrying out the method; in fig. 2 shows section A-A in FIG. one.

The installation comprises a watermaker 1 with transparent inclined walls 2, a tray 3 for salt water, inlet and outlet air collectors 4 and 5, as well as a blower 6

air, air ducts 7 and air heater 8.: The power is supplied from natural energy sources: air heater 8 is designed as a solar collector, and blower 6 is driven by a wind turbine 9. Air heater 8 has absorber 10 with fins 11. Air blower 6 is made in the form of a tank filled with liquid, in which the caps 12 are connected, connected to the crank 13 of the wind turbine 9. To enable the blower 6 to move to set the wind turbine 9 into the wind, it will Spruce 6 is connected to the duct 7 through flexible pipes (not shown in the Fig.).

The installation works as follows.

The sun's rays, penetrating through the transparent walls of 2 desalination plant 1, heat the salt water in 3.

Through the inlet air manifold 4, the desalter 1 is supplied with air that blows over the evaporation surface. The steam-air mixture omels, walls 2 and, in contact with them, the steam 30 condenses and the distillate is removed from the desalination plant. Due to the fact that one of the caps 12 of the supercharger b rises, a vacuum is created in the space under it, due to which air enters the exhaust manifold 5, and from there through the duct 7 is sucked into the supercharger 6. Due to the rotation of the crank 13 of the wind turbine 9 cap 12 is lowered and the pressure in the space below it rises. The air in this space through the duct 7. is fed into the air heater 8. Pass between the ribs 11 of the absorber And heated up, the air enters the collector 4, after which the process resumes. When preheating the air that blows on the surface of the evaporation, water does not expend energy to heat the air, which reduces heat loss in the desalination plant. Formula of the invention. The method of desalination of salt water in a solar desalination plant, by heating water, blowing the evaporation surface with air and condensing the distillate, is characterized by the fact that, in order to reduce the heat loss in the desalination plant, the air before the evaporation surface is preheated. Sources of information taken into account during the examination 1. USSR author's certificate I 819522, cl. R 24 J 3/02, 1975.

X 1X1 11

Lo

IT- (tlllP I G

c Oliiiii-1-U

x

nil 1 I I

i

t

OF

P 2

H

SI

ct

1G

Ttrt

 I i-H L-. VL

A- .M ... j.ii; ..,., .L. | .L ... f.t -, -.-, ... ll ,,, | andl ./, | lugyp and yi

Claims (1)

Claim The method of desalination of salt water in the solar desalination plant, by heating the water, blowing the evaporation surface with air and condensing the distillate, is characterized by the fact that the air is preheated before blowing the desalination surface to reduce heat loss in the desalination plant.