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Distributed energy small-size seawater desalination system control method and device for realizing control method

A distributed energy and control method technology, which is applied in the field of distributed energy small-scale seawater desalination system control methods and using devices, can solve problems such as inability to lay a power grid, unstable electricity and heat supply, and small area, and achieve freshwater production. low cost effect

Inactive Publication Date: 2013-06-12
广州大华科盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some islands and reefs have small areas, small populations, and are far away from the land. They cannot lay power grids, and are not suitable for and do not need to install large-scale seawater desalination devices. Secondly, it is impossible to install mobile equipment such as fishing boats, military ships, and coastal scattered residents. Large-scale seawater desalination system; existing commercialized small-scale seawater desalination devices have low water output and high operating costs, and require diesel generators to provide electricity. Due to the difficulty in ensuring the supply of traditional fuels such as diesel, this type of seawater desalination device is not completely suitable for islands , islands and reefs and other environments
There are also seawater desalination devices that use one or two energy sources. However, since the electric energy and thermal energy of various green energy sources such as solar energy, wind energy, and heat pumps are greatly affected by natural environmental factors, the supply status of electricity and heat is not stable. To ensure fresh water Stable production while minimizing energy consumption requires a well-designed control system, which is a problem that people have been considering

Method used

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  • Distributed energy small-size seawater desalination system control method and device for realizing control method

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Embodiment 1

[0031] The present invention relates to a control method of a small seawater desalination system with distributed energy support modes such as solar energy, wind energy, industrial waste heat, heat pumps, etc. The control system is composed of a seawater desalination device, a thermal energy supply system, an energy supply system, a control system, etc. Its working principle is: the energy supply system provides the electrical energy required for the operation of the entire system, the thermal energy supply system provides the heat energy required for the desalination of seawater for the seawater desalination system, the seawater desalination device is used as the execution device of the seawater desalination, and the control system is used for electrical and thermal energy Intelligent deployment and control of the operating mode and operating status of the entire system. System diagram such as figure 1 .

[0032] The control method of the integrated energy supply seawater desali...

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Abstract

The invention discloses a distributed energy small-size seawater desalination system control method and a device for realizing the control method. The invention aims at providing a method which enables energy supply to be matched with stable operation modes of freshwater production capacity at any time, so as to guarantee the stable production of freshwater. The method comprises the following steps that: 1) the system is started up; 2) automatic scanning and detection are conducted, and when an external power grid or diesel engine power generation device is unavailable, the system automatically screens a fourth working mode; 3) a seawater desalination production working mode is started; 4) the system priorly adopts a first working mode for scanning; 5) when the system detects energy working conditions which cannot satisfy the first working mode, the system is automatically shifted to a second working mode; 6) when conditions cannot satisfy the second working mode, the system automatically enters the fourth working mode; and 7) when the fourth working mode is screened, the system enters a third working mode to start to produce freshwater. The distributed energy small-size seawater desalination system control method and the device for realizing the control method belong to the technical field of seawater desalination.

Description

Technical field [0001] The invention discloses a seawater desalination system control method and a use device thereof, in particular to a distributed energy small seawater desalination system control method and a use device thereof, belonging to the technical field of seawater desalination. technical background [0002] Desalination is the main source of water for people living on the coasts and islands in the world. Due to the large one-time investment and high operating cost of seawater desalination, the unit freshwater cost can only be reduced when a certain amount of freshwater output is achieved. Therefore, the mainstream seawater desalination systems in the world today are large and super large-scale desalination systems that produce thousands to tens of thousands of cubic meters of fresh water per day or even hundreds of thousands of cubic meters per day. However, some islands and reefs are small in area, small in population, far away from the land, and cannot be installe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418C02F1/14C02F1/16C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212Y02P90/02
Inventor 刘景平刘继磊刘序仁
Owner 广州大华科盛科技有限公司
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