Sea water desalination film adopting solar micro condensation and capillary evaporation

Abstract

The invention discloses a sea water desalination film adopting solar micro condensation and capillary evaporation, and belongs to the technical fields of solar heat collection and sea water desalination. The sea water desalination film comprises a hydrophilic porous material, a lower layer film body, an upper layer film body and two or more sea water desalination units, wherein each sea water desalination unit adopts micro-condensing lenses for concentration to heat the capillary carbon fiber pipe bundles under the sea water desalination unit; sea water is absorbed to the upper end surfaces of the capillary carbon fiber pipe bundles due to the capillarity and evaporates under the action of the heating of solar faculae to generate water vapor; the water vapor condenses after being in contact with cold air, the condensed water drops are absorbed by a hydrophilic fiber washer and then stored in the hydrophilic porous material, and eventually the purpose of sea water desalination is realized. The sea water desalination film is foldable and portable; moreover, a great deal of sea water desalination micro-units in the film can efficiently evaporate the sea water to realize efficient and portable sea water desalination.

Description

technical field [0001] The invention relates to a seawater desalination film utilizing solar microlens light concentrating and capillary action, and belongs to the technical field of solar heat collection and seawater desalination. Background technique [0002] As a rare resource, fresh water has been paid more and more attention, especially in coastal areas where fresh water resources are very scarce. The technology of extracting fresh water from the seawater with the largest reserve on the earth has also become a hot spot. At present, there are many methods for seawater desalination, mainly including reverse osmosis membrane method and distillation method. [0003] The reverse osmosis membrane method utilizes the principle of osmotic pressure to achieve seawater desalination. Under normal circumstances, when fresh water and sea water are separated by an osmotic membrane, the water molecules in the fresh water will permeate to the sea water side under the action of osmotic...

AI Technical Summary

Problems solved by technology

[0005] The above methods first need to consume a lot of fuel and electric energy, and the investment is large. Most of them use metal as the main material, and the equipment is heavy and occupies a large area. It is a waste of land resources. It is inconvenient to carry and install. After installation, it can only be used fixedly and has poor mobility.

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