Apparatus and method of independent wind power driven seawater desalination

Abstract

The invention discloses an apparatus and a method of independent wind power driven seawater desalination. The method comprises the steps that: step one, establishing an independent grid: an independent grid is established through a bi-directional inverter by using electric energy from a storage battery; step two, wind power grid-connecting: electric energy generated from each aerogenerator is delivered to the independent grid through aerogenerator controllers and grid-connecting inverters; step three, load connecting: water supplying pumps, high pressure pumps and reverse osmosis membrane components are connected to form independent membrane modules, load circuits of the independent membrane modules are connected in parallel, and then connected to an electric output of a power system; step four, system coordination dynamic controlling. Previously, wind power driven seawater desalination requires large capacity storage batteries for ensuring the stability of power supply. With the present invention, the technical problem is solved, and a novel independent wind power driven seawater desalination mode is provided. According to the present invention, energy cost in fresh water producing with the present apparatus is substantially lower than that with systems of other similar types. Thus, the apparatus and the method have good prospect to be developed and applied in the field of seawater desalination.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a reverse osmosis seawater desalination device and method using wind power generators as power supply for the system. Background technique [0002] my country's coastal areas are rich in seawater resources, and making full use of seawater resources through seawater desalination is the main way to solve the shortage of freshwater resources in coastal and offshore areas. Seawater desalination, also known as "seawater desalination", is the technology of obtaining fresh water from seawater. Seawater desalination technologies currently in practical application are mainly two types: distillation and reverse osmosis membrane. Distillation desalination mainly uses thermal energy, while reverse osmosis membrane desalination mainly uses electric energy. Compared with the distillation method, the reverse osmosis membrane desalination method has the advantages of small investm...

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Problems solved by technology

[0007] The present invention provides an independent wind power-driven seawater desalination device and method, to solve the problem of high energy consumption in the traditional seawater desalination industry, and solve the problem that the existing seawater desalination device using wind power energy needs to use a large number of batteries, high power loss, difficult maintenance, and high cost. high technical issues

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