Solar-powered waste water evaporation system

Abstract

The invention discloses a solar-powered waste water evaporation system. The energy source used by the system is mainly solar energy. Hot water generated by a solar heat collector pre-heats waste water; by means of a wet-carrying capacity of a gas, steam is carried after being contacted with pre-heated waste water in an evaporation chamber; the wet-carrying gas is condensed in a surface air cooler by cooling water generated by a solar-powered lithium bromide refrigerator, and the dehumidified gas further enters the evaporation chamber to carry wet circularly. The system disclosed by the invention needs not to consume steam, so that the system is remarkable in energy conservation. The system can realize low-temperature evaporation and can be widely applied to the industries of petrochemical engineering, foods, light industry, pharmacy, sewage treatment, sea water desalination and the like.

Description

technical field [0001] The invention relates to a waste water evaporation system using solar energy, which can be widely used in petrochemical, food, light industry, pharmaceutical, sewage treatment, seawater desalination and other industries. Background technique [0002] With the development of industry and the shortage of water resources, the wastewater pollution concentration produced by some industrial industries is getting higher and higher, the composition is more and more complex, and the discharge volume is increasing. In addition to organic pollutants, these wastewater also contain A large amount of inorganic salts, such as Cl - , SO 4 2- , Na + , Ca 2+ Plasma. If these high-salt, high-organic waste water is discharged directly without treatment, it will inevitably cause great harm to aquatic organisms, drinking water, and industrial and agricultural production water. [0003] Evaporation method is a commonly used treatment method for high-salt wastewater. It...

AI Technical Summary

Problems solved by technology

The multi-effect evaporation technology uses the secondary steam generated by the front-effect evaporation as the heat source of the after-effect evaporator to achieve the purpose of saving steam consumption, but the equipment occupies a large area and the investment cost is high

The working principle of mechanical vapor recompression technology is: use the steam compressor (fan) to compress the secondary steam generated in the evaporator, the temperature and pressure of the secondary steam increase, and the heat enthalpy increases, and can then enter the evaporator system as an evaporation heat source , so that the heat of the secondary steam generated can be reused many times, and the evaporation cycle can be continuously carried out. The mechanical vapor recompression technology only consumes electric energy, which greatly saves the amount of steam used, but the performance requirements of its core equipment mechanical steam compressor Higher, the initial investment is also larger

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