A coupled low-temperature multi-effect seawater desalination system based on multi-energy complementarity

Abstract

The invention relates to a coupled low-temperature multi-effect sea water desalination system based on multi-energy complementation. The system comprises a photovoltaic and photothermal heat collector, a wind driven generator, an electric auxiliary heating device, a heat storage device, a saturated steam generation device and a multiple-effect evaporation sea water desalination device. The photovoltaic and photothermal heat collector and the wind driven generator are connected through a wind energy and solar energy complementation controller to form a heat supply device and a power supply device in combination, the heat supply device is connected with the heat storage device, the electric auxiliary heating device and the saturated steam generation device in sequence, and the power supply device is connected with the electric auxiliary heating device, electric equipment connected with the multiple-effect evaporation sea water desalination device and a storage battery for collecting surplus power. Compared with the prior art, the solar energy and wind energy organically-coupled low-temperature multi-effect sea water desalination system is used for obtaining fresh water, and the system has high solar energy utilization efficiency and is stable and reliable in operation.

Description

Technical field [0001] The invention relates to a seawater desalination system, in particular to a coupled low-temperature multi-effect seawater desalination system based on multi-energy complementation, belonging to the technical field of seawater desalination. Background technique [0002] In recent years, my country's society and economy have developed rapidly, and industrial and residential water consumption has also increased year by year, which has led to an increasingly prominent water shortage in my country. At the end of 2014, my country's total population has reached 1.367 billion. As the most populous country in the world, my country's total freshwater resources account for only 6% of the global total, and the per capita freshwater resources are only the world average. 1 / 4. In addition, the distribution of water resources in our country is extremely unbalanced. There are many rivers in our country. There are more than 50,000 rivers with a basin area of ​​more than 100 ...

AI Technical Summary

Problems solved by technology

Whether it is to use the light effect of solar energy or the thermal effect, the problem with both is that the utilization efficiency of solar energy is not high.

Due to the unstable supply of wind energy, which has the characteristics of intermittent and volatility, both forms of wind energy seawater desalination must use related adjustment devices to solve the problem of wind energy volatility.

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