Integrated concentrating solar power and seawater desalination method and system

Abstract

The invention relates to integrated concentrating solar power and seawater desalination method and system. The method comprises the following steps of: forming primarily filtered seawater into a liquid film in a pressure difference mode; then, evaporating the liquid film through a concentrating heat-collecting system capable of absorbing solar light and heat by adopting a high-temperature explosion and crystallization mode to obtain salt powder and steam; introducing the steam into power generating equipment for power generation; separating impurities in the steam emitted from the power generation through a separator so that most volatile organic compounds are oxidized into carbon dioxide and water; carrying out selective permeability and condensate recovery treatment on the rest un-oxidized steam to finally prepare high-grade fresh water by a condenser; and conveying salt powder byproducts separated from the seawater into a recovery system through a high-temperature crystallizer to recover. The invention obtains an electric energy source by utilizing concentrating solar power to evaporate seawater for power generation, can finish seawater desalination utilization and steam power generation and realize zero-cost seawater recycling by adopting a pressure difference filming and high-temperature evaporation mode, has small occupation of land, stable operation, high efficiency and easy maintenance and industrialization formation.

Description

technical field [0001] The present invention relates to the fields of concentrated solar energy power generation and seawater desalination, in particular to a method for obtaining electric energy by using concentrated solar energy to generate electricity by evaporating seawater, and obtaining a large amount of high-quality freshwater resources by evaporating seawater for desalination and desalination, and a device designed using the method system. Background technique [0002] With the increasing shortage of petrochemical energy and the increasing pressure on environmental protection, countries are actively exploring the use of new energy, renewable energy, especially solar energy. Because solar energy has the advantages of unlimited reserves, universal existence, clean utilization and gradually emerging economy, it has become the most ideal alternative energy for human beings. Therefore, the research and development of solar power generation has become an energy strategic ...

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Problems solved by technology

Entering 2010, the research on obtaining electric energy by using solar concentrated light to evaporate seawater to generate electricity, and obtaining a large amount of high-quality freshwater resources by evaporating seawater desalination and desalination is gradually increasing, but there is still no mature technology that can form industrialization

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