Membrane distilled water treatment system and method which are combined with solar concentrating photovoltaic photo-thermal technology

Abstract

The invention provides a membrane distilled water treatment system and method which are combined with a solar concentrating photovoltaic photo-thermal technology. The membrane distilled water treatment system comprises a solar concentrating photovoltaic photo-thermal system, a membrane distilled water treatment system body, a thermal storage and power storage system and a heat exchange system, thesolar concentrating photovoltaic photo-thermal system and the membrane distilled water treatment system body are organically combined through the two-stage heat exchange system, a two-stage heating device is designed to achieve the efficient and reasonable heat and power output of the concentrating photovoltaic photo-thermal system, and the efficient storage of solar energy is achieved through atwo-stage energy storage system. The system can still run normally at night by utilizing the stored thermoelectric power to achieve the purpose of maximally utilizing the solar energy. The membrane distilled water treatment system and method which are combined with the solar concentrating photovoltaic photo-thermal technology have the advantages that the comprehensive utilization rate of the solarenergy is higher, the utilization rate of the raw water is higher, more fresh water is obtained, the efficiency is high, the cost is low, and the application prospects are wide.

Description

technical field [0001] The invention specifically relates to a membrane distilled water treatment system and method combined with solar concentrating photovoltaic photothermal technology, and belongs to the fields of comprehensive utilization technology of solar energy, water treatment, energy conservation and environmental protection. Background technique [0002] The shortage of fresh water resources is one of the main problems plaguing human beings at present. However, there are huge reserves of seawater or salt water on the earth. How to use these salt water resources to obtain fresh water is a research hotspot in the field of water treatment. The existing seawater and salt water desalination technologies mainly include multi-stage flash evaporation technology and reverse osmosis technology, but they all have their own significant shortcomings. Multi-stage flash evaporation technology needs to consume high-grade energy to obtain fresh water, and the cost is relatively hi...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the defects in the prior art such as low comprehensive utilization rate of solar energy, no heat storage energy storage device, and the system needs to consume additional electric energy, the purpose of the present invention is to provide a membrane distilled water treatment system combined with solar concentrated photovoltaic photothermal technology and Method, the system achieves the purpose of efficient and comprehensive utilization of solar energy by optimizing the coupling of solar concentrated photovoltaic photothermal system and membrane distilled water treatment system, and improves the system's all-day water production. It has the characteristics of high efficiency, low cost, energy saving and environmental protection. Broad application prospects

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