Technique for desalinating seawater by using solar energy

Abstract

The invention discloses a technique for desalinating seawater by using solar energy, which depends on the design of a solar energy acceptance device for converting solar energy into heat energy, and is used for distilling seawater so as to extract fresh water. The technique is characterized in that a steel plate subjected to blackening treatment and heat-conducting oil pipes are flatly arranged in dishes (the bottom and periphery thereof are heat-insulating), a piece hollow double-glazing glass is covered on each dish, the oil pipes in each dish are communicated in an end-to-end mode, each dish is provided with an oil-pipe drawing-into interface and an oil-pipe drawing-out interface, and multiple dishes can be used by way of connecting in series.

Description

technical field [0001] The invention relates to the extraction of fresh water from seawater by using the distillation technology commonly used in the chemical industry and utilizing the photothermal conversion of solar energy. Background technique [0002] This is the cycle of water in nature. It evaporates from the surface of the earth to the sky, and then falls to the ground in the form of rain and snow. Most of the evaporation on the ground is the evaporation of sea water. On the other hand, many occasions lack fresh water, but there are abundant seawater resources, so people imagine artificially extracting freshwater from seawater. Distillation is the most considered and most technically mature method. Just because energy consumption is excessive, cost is too high and can't become a reality so far. Contents of the invention [0003] The present invention contemplates the use of solar energy to distill seawater to extract fresh water. Black objects can almost complet...

AI Technical Summary

Problems solved by technology

Just because the energy consumption is too large and the cost is too high, it cannot become a reality so far.