A seawater desalination system containing multiple distributed energy sources and an energy coupling system for multi-energy cogeneration

Abstract

The invention provides a seawater desalination system containing multiple distributed energy resources and an energy coupling system achieving multi-energy co-production. The seawater desalination system comprises a photovoltaic power generation system, a wind power generation system, a groove type solar thermal system, a low-temperature multiple-effect seawater desalination system, a seawater desalination thermal load system, an electrical energy storing system and a microgrid system; the microgrid system is connected with the photovoltaic power generation system, the wind power generation system, the groove type solar thermal system, the low-temperature multiple-effect seawater desalination system, the seawater desalination thermal load system and the electrical energy storing system separately, and the groove type solar thermal system is connected with the low-temperature multiple-effect seawater desalination system and the seawater desalination thermal load system separately. Photovoltaic power generation and wind power generation provides energy for a water pump circulation system of a photothermal solar energy thermal system, is a thermal cycle thermal mass heating source and provides sustained and stable energy for seawater desalination. The water supply quantity of seawater desalination equipment can be greatly increased by means of the photovoltaic power generation system, the solar thermal power generation system the wind power generation system. The energy coupling system achieving multi-energy co-production achieves co-production of electricity, heat and water.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a seawater desalination system containing multiple distributed energy sources and an energy coupling system for multi-energy cogeneration. Background technique [0002] Water resources are basic natural resources and strategic economic resources, and the sustainable utilization of water resources is a major strategic issue related to the economic and social development of our country. The situation of my country's fresh water resources is not optimistic. At present, the water shortage in normal years is nearly 40 billion cubic meters. Among the more than 660 cities in the country, more than 400 cities are short of water, of which 108 are seriously short of water. The shortage of fresh water resources and even the water crisis are one of the biggest bottlenecks in the sustainable development of my country's economy and society. [0003] Seawater utilization is one...

AI Technical Summary

Problems solved by technology

At present, the cost of seawater desalination is still relatively high. Although the cost of seawater desalination per ton of water has dropped to about 5 yuan, it is still relatively high compared to the low tap water price in most cities. This is also the most direct factor restricting the development of seawater desalination. and most important factors

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