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Wind-solar complementary seawater desalination system

A wind-solar hybrid and seawater technology, which is applied in seawater treatment, multi-stage water treatment, energy wastewater treatment, etc., can solve the problem of low freshwater recovery rate and achieve high freshwater recovery rate, high energy efficiency ratio, and high freshwater recovery rate.

Inactive Publication Date: 2016-04-06
JIMEI UNIV
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Problems solved by technology

Although membrane distillation seawater desalination is cheap and insensitive to high-concentration seawater, the freshwater recovery rate is still low, and seawater heating, vacuum pumps, and circulation pumps require electrical energy

Method used

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  • Wind-solar complementary seawater desalination system

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Embodiment Construction

[0018] Such as figure 1 As shown, the present invention is a wind-solar complementary seawater desalination system, including a power supply 1 , an indirect contact seawater desalination system 2 , a direct contact membrane distillation seawater desalination system 3 , and a cooling system 4 .

[0019] The indirect contact seawater desalination system 2 includes a crystallizer 21 , a seawater / ice crystal separator 22 , an ice crystal washing and melting device 23 , and a preheater 24 .

[0020] The direct contact membrane distillation seawater desalination system 3 includes a membrane distillation seawater storage tank 31 , a seawater heater 32 , a membrane distillation module 33 , a distillation cooler 34 , a distillation tank 35 and a vacuum pump 36 .

[0021] Described crystallizer 21 is connected with the inlet of seawater / ice crystal separator 22 by pipeline, and the fresh water outlet of seawater / ice crystal separator 22 is connected with the inlet of ice crystal washing...

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Abstract

The invention discloses a wind-solar complementary seawater desalination system, which comprises a power supply, an indirect contact seawater desalination system, a direct contact membrane distillation seawater desalination system and a cooling system. The indirect contact seawater desalination system and the direct contact membrane distillation seawater desalination system are connected through a pipeline. The cooling system provides the indirect contact seawater desalination system and the direct contact membrane distillation seawater desalination system with cold energy. By coupling three kinds of energy, unification of high energy efficiency ratio, high fresh water recovery rate and low operation cost of the seawater desalination system is realized, and organic combination of cold waste energy (LNG cold energy) and renewable energy (solar energy and wind energy) is achieved. LNG cold energy is fully utilized. No energy is consumed. There is no operation cost.

Description

technical field [0001] The invention relates to the field of seawater desalination, in particular to a seawater desalination system utilizing the cold energy of liquefied natural gas to combine freeze desalination-wind-solar complementary vacuum membrane distillation. Background technique [0002] Rapid global population growth and rapid industrialization in recent decades have caused severe freshwater shortages and environmental damage. In order to alleviate the pressure of drinking water, various seawater desalination and sewage recycling technologies are flourishing. Currently the most popular seawater desalination processes include reverse osmosis (RO), multiple effect distillation (MED), etc. However, these seawater desalination technologies are limited by high energy consumption and professional and expensive infrastructure. Therefore, it is necessary to conduct extensive research and exploration on economical and energy-efficient seawater desalination technologies, e...

Claims

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Application Information

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IPC IPC(8): C02F9/10C02F103/08
CPCY02W10/33Y02W10/37C02F9/00C02F1/04C02F1/22C02F2103/08C02F2301/08
Inventor 曹文胜刘菊东
Owner JIMEI UNIV
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