A device for seawater desalination and salt production with wave energy and solar energy

Abstract

The invention discloses a wave energy and solar seawater desalination and salt production device, which comprises an energy capture device, an energy storage voltage stabilizing device, a reverse osmosis device and a residual energy recovery device sequentially connected through pipelines; the energy storage voltage stabilizing device includes sequentially Side-by-side M-level energy storage and pressure-stabilizing pipelines, the inlet ends of two adjacent energy-storage and pressure-stabilizing pipelines are connected through connecting pipes, and each connecting pipe forms N-level connecting pipes; each connecting pipe is equipped with a sequence valve , the outlets of the M-level energy storage and pressure stabilization pipelines are collected on a stabilized pressure outlet main pipe, and the seawater with a stable pressure is input to the reverse osmosis device through the stabilized pressure outlet main pipe; and pressure reducing valves; the set output pressures of the M pressure reducing valves in the M-level energy storage and pressure-stabilizing pipelines increase sequentially. Compared with the prior art, the present invention has the following advantages: the effects of stable water production and energy saving are realized.

Description

technical field [0001] The invention relates to the field of seawater desalination, in particular to a wave energy and solar seawater desalination and salt production device. Background technique [0002] The shortage of fresh water resources in the world has become a growing concern. According to the latest statistics, more than 2 billion people in the world have insufficient fresh water resources. By 2025, more than 4 billion people will lack fresh water, and fresh water scarcity is a problem affecting billions of people today. At the same time, with the continuous improvement of industrialization and urbanization, coastal land resources are becoming more and more tense, and the problems of low land area utilization rate of traditional sea salt industry, great influence of climate factors, and low profit and output value are becoming more and more obvious. In the future, the area of ​​salt fields will continue to decrease. , the technological innovation of sea salt indus...

AI Technical Summary

Problems solved by technology

The main disadvantages of current seawater desalination and salt production technology are: high energy consumption, negative impact on aquatic organisms from the discharge of polluted high-concentration brine, environmental pollution from the use of fossil fuels, and the use of fossil fuels to drive hydraulic pumps to pressurize seawater At the same time, it is necessary to convert the thermal energy of fossil fuels into electrical energy first, and then use the electrical energy to drive the hydraulic pump and convert it into hydraulic energy, and the number of energy conversions is large.

Like other new energy sources, wave energy and solar energy are renewable resources, inexhaustible, especially wave energy has the characteristics of high energy density; Using local materials reduces the cost of transportation and power generation equipment. Secondly, it occupies a small area and saves land costs. However, wave energy also has the disadvantages of high pulsation and instability, and solar energy is also greatly affected by climate. Shortcomings

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