Solar PV/T-membrane distillation integrated sea water desalinization system

Abstract

A solar PV / T-membrane distillation integrated sea water desalinization system belongs to the technical field of solar heat utilization and comprises a photovoltaic-photothermal power-generating and heat-collecting system, an expansion evaporation system and a sea water desalination system. An expansion evaporator herein enables the various systems to be integrated and coupled; particularly, electric energy emitted by a photovoltaic-photothermal component is supplied to the systems and users by means of power generation via an inverter; in addition, low-temperature incoming sea water is used tocool photovoltaic cells, so that photoelectric conversion efficiency of the photovoltaic-photothermal component is improved. Steam generated by the expansion evaporator enters a condensing component;preheated incoming sea water is condensed into fresh water; the incoming sea water is adjusted via a valve to ensure stable operation of the photovoltaic-photothermal component; thinned water from the expansion evaporator enters a membrane distillation component to continues the production of fresh water. The solar PV / T-membrane distillation integrated sea water desalinization system has the advantages that comprehensive utilization of solar energy can be achieved, consumption of primary energy is reduced, and the system is highly automated and independent.

Description

technical field [0001] The solar PV / T-membrane distillation integrated seawater and seawater system relates to a combined water-heat-electricity integrated system that integrates compound parabolic photovoltaic photothermal components and seawater desalination, and belongs to the technical field of solar heat utilization. Background technique [0002] Compound Parabolic Concentrator (CPC for short) is a low-concentration non-imaging concentrator designed based on the principle of edge rays, which can collect incident light within the range of acceptance angles into the absorber according to the ideal concentration ratio In fact, it was first improved by Professor Winston of the University of Chicago from the radiation detector in the experimental research of high-energy physics. The biggest feature of the CPC concentrator is that it does not need to track the position of the sun at any time. It only needs to adjust the position of the CPC in time according to the change of t...

AI Technical Summary

Problems solved by technology

Although there are many methods mentioned above, there are only a few methods such as MSF, MED, VC and RO, which are currently used in large-scale industrial desalination technologies.

Because MSF, MED, and VC need to consume a lot of steam and electricity, and RO also needs a lot of electricity, it will bring a lot of fossil fuel consumption, causing environmental problems such as greenhouse gas emissions and frequent smog

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