High efficiency solar energy sea water desalting device

Abstract

The invention discloses a high efficiency solar energy sea water desalting device. The high efficiency solar energy sea water desalting device comprises a dish-type condenser with a line focusing function, a column type steam generator with a vacuum sandwich layer, nanometer particles with a nuclear shell doubled-layer structure and a sleeve-type heat exchanger, wherein a focusing shaft of the dish-type condenser and a center shaft of the column type steam generator are coincided; sea water to be processed is contained in the column type steam generator, and nanometer particles are distributed in sea water in the column type steam generator; a sea water inlet is formed on the upper part of the side wall of a sleeve of the sleeve-type heat exchanger, a sea water outlet is formed in the lower part of the side wall of the sleeve, and the sea water outlet is communicated with the bottoms of the side walls of the column type steam generator through a sealing pipeline; and the upper end of an inner pipe of the sleeve-type heat exchanger are communicated with the top of the column type steam generator, and an opening arranged on the lower end of the sleeve-type heat exchanger is utilized as a fresh water outlet. The high efficiency solar energy sea water desalting device provided by the invention is utilized, the nanometer particles which are distributed in sea water realizes a direct fluid internal heating mode, the reflection and heat resistance loss are reduced, and the heating efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of solar light-heat utilization, and in particular relates to a high-efficiency solar seawater desalination device. Background technique [0002] Seawater desalination is the use of seawater desalination to produce fresh water. It is an open source incremental technology to realize the utilization of water resources, which can increase the total amount of fresh water. At present, the global daily desalination production is about 35 million cubic meters, 80% of which are used for drinking water. Seawater desalination, as an alternative and incremental technology for freshwater resources, has received more and more attention from many coastal countries in the world. At present, the main seawater desalination methods include multi-stage flash evaporation method, multi-effect distillation method, compressed air distillation method based on distillation process, reverse osmosis method and electrodialysis method...

AI Technical Summary

Problems solved by technology

These two methods have their own advantages and disadvantages: the distillation method has low requirements for seawater pretreatment, and the fresh water produced is distilled water, so the water quality is high, but this method consumes a lot of energy, so it is often used in conjunction with the waste heat utilization of power plants and chemical plants

Although the membrane method has low energy consumption, the life of the permeable membrane is short and the cost of membrane replacement is high, and the quality of fresh water produced is relatively low

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