Solar seawater desalination system

Abstract

The invention discloses a solar seawater desalination system which comprises a flotation device, wherein the flotation device is provided with an evaporation device and a water pumping device for conveying seawater into the evaporation device; the evaporation device is connected with a fresh water vessel and comprises a housing and a seawater vessel arranged in the housing; the upper parts of thehousing and the seawater vessel are provided with convex lenses; the top of the seawater vessel is provided with a steam outlet. According to the solar seawater desalination system, twice condensationis realized by virtue of the convex lens at the upper part of the evaporation device and the convex lens at the upper part of the seawater vessel, so that sun-lights are condensed into the seawater vessel so as to heat and evaporate seawater in the seawater vessel, the steam is volatilized outside the seawater vessel through the steam outlet at the top seawater vessel, and the steam is condensated in the housing so as to form fresh water, so that seawater desalination is realized, solar energy is fully utilized, and the power consumption is low. The solar seawater desalination system is applicable to the technical field of seawater desalination.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a solar seawater desalination system. Background technique [0002] At present, the world's fresh water resources only account for 2.5% of its total water volume, of which more than 70% are frozen in the ice sheets of the Antarctic and Arctic, plus the difficult-to-use alpine glaciers and permafrost snow, 86% of the fresh water resources are difficult use. The fresh water resources that humans can really use are part of rivers, lakes and groundwater, which only account for 0.26% of the total water on the earth. At present, 1 / 6 of the world's population, about 1 billion people, lack water. Experts estimate that by 2025, the world's water-deficient population will exceed 2.5 billion. my country is a country with severe water shortage and is listed as one of the 13 water-poor countries by the United Nations. At present, my country's water shortage in normal years i...

AI Technical Summary

Problems solved by technology

At present, seawater desalination devices mainly include distillation type, reverse osmosis type, electrodialysis type, etc., and the most widely used is distillation type. Seawater desalination mainly uses diesel engine cooling water steam as heat source, and its operating conditions are limited by the working conditions of the main engine. Seawater desalination can only be performed when the main power unit is working, and the system is complex, difficult to manage, high in cost, and consumes a lot of energy

Images