Full DC load reverse osmosis seawater desalination device and method for wind and solar complementary energy supply

Abstract

The invention discloses a wind-solar complementary power supply type total-direct-current loaded reverse-osmosis seawater desalination unit and method. The wind-solar complementary power supply type total-direct-current loaded reverse-osmosis seawater desalination unit comprises a direct-current wind driven generator, a high-efficiency light trapping membrane photovoltaic power generation component, a wind-solar complement controller, an electric power buffer balance control module, a seawater sucking pump, a seawater pretreatment module, a reverse-osmosis high-pressure pump, a reverse-osmosis seawater desalinating device, an ozone sterilizer and a seawater storing device, wherein electric power generated by the high-efficiency light trapping membrane photovoltaic power generation component and the direct-current wind driven generator is transmitted to direct-current loaders such as the seawater sucking pump, the seawater pretreatment module, the reverse-osmosis high-pressure pump, the reverse-osmosis seawater desalinating device and the ozone sterilizer by complementary current rectification and balance control of the wind-solar complement controller and the electric power buffer balance control module; the generated fresh water is stored in a fresh water storing device. By adopting clean energy, the seawater desalinating device is free from geographical limitation and capable of saving general energy and protecting the environment, can be applied to regions lack of fresh water resources or free of commercial power supply, and can be widely popularized.

Description

technical field [0001] The invention relates to the field of clean energy seawater desalination, in particular to a full direct current load reverse osmosis seawater desalination device for wind and solar complementary energy supply and a method thereof. Background technique [0002] With the increase of the earth's population, freshwater resources are becoming more and more scarce. 90% of the water resources on the earth are undrinkable seawater. The development of seawater desalination equipment to desalinate seawater to obtain fresh water is the main development trend. At present, many seawater desalination devices use commercial power to provide electricity to drive seawater desalination devices for seawater desalination. However, because seawater desalination equipment consumes a lot of energy, the cost of seawater desalination remains high, and the consumption of conventional energy will also bring environmental problems. Pollution. Now, many people have also begun to...

AI Technical Summary

Problems solved by technology

At present, many seawater desalination devices use commercial power to drive seawater desalination devices to desalinate seawater. However, due to the high energy consumption of seawater desalination equipment, the cost of seawater desalination remains high, and the consumption of conventional energy will also bring environmental pollution. Pollution

Now, many people also begin to use clean energy such as wind energy and solar energy to provide power to drive seawater desalination devices. For example, a solar reverse osmosis seawater desalination device disclosed in Chinese Patent No. ZL02281876.6 has a large footprint and high energy efficiency. Low, obviously limited by the intensity of sunlight

Another example is a wind-solar complementary seawater desalination device disclosed in a Chinese patent with publication number ZL200920198757.0. This device has no equalization control equipment, and there is no seawater pre-treatment device, which is easy to cause damage to the desalination equipment.

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