Method and device for managing seawater desalination system and seawater desalination system

Abstract

The present invention provides a method for managing a seawater desalination system, in which the amount of wind power to be generated is calculated according to wind speed and duration; if the amount of wind power to be generated is below a set value, a request is made to the power grid to reserve a certain amount of electricity in addition to the wind power; and when the amount of wind power to be generated is not below the set value, the wind power is used as the energy source for the seawater desalination system.

Description

technical field [0001] The invention relates to seawater desalination technology, in particular to a method and device for managing a seawater desalination system, a seawater desalination system including the device, and an energy storage and voltage stabilizing device. Background technique [0002] Seawater desalination is an important way to solve the shortage of water resources, and it has been paid more and more attention by people. With the development of seawater desalination technology and the increase of social demand, the desalination scale of seawater desalination plants has continued to expand, and its scale has grown from the initial daily output of several Hundreds of cubic meters, developed to the current daily output of hundreds of thousands of cubic meters. [0003] While the scale of seawater desalination continues to expand, the cost of seawater desalination is also gradually decreasing. The cost of seawater desalination depends to a large extent on the co...

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Problems solved by technology

In our country, if we want to build a new thermal power plant for seawater desalination, it will not only consume a lot of fuel, but also cause new environmental pollution, discharge a lot of carbon dioxide, nitrogen and sulfide, etc., and it is not conducive to reducing the cost of desalinated water. Cost, such as using the existing grid power supply, the cost is difficult to reduce, and because of the large power consumption, the grid will bear a heavy burden, and the wind resources near the coast are usually rich, so wind power is used to solve the problem. The problem of the energy needed to desalinate seawater is a good solution

[0004] However, due to the uncertainty of wind power, wind power is unstable, and the power generation of wind farms depends largely on wind power conditions. However, the seawater desalination system needs to operate without interruption, and power interruptions will affect the power equipment in the seawater desalination system ( such as high-pressure pumps) adversely affect

[0005] This instability also affects the storage and utilization of wind power

In major developing countries (such as China), due to the weak grid system, they cannot adapt to the development of wind power generation, and wind power generation cannot be effectively integrated into the grid, which often wastes a lot of energy and investment

Moreover, wind power is often not well stored, and if it cannot be utilized in a timely manner, it will cause waste

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