A high-efficiency water purification device based on low-grade thermal energy and nano-cloth

Abstract

The invention belongs to the technical field of water treatment, and discloses a water purifying device utilizing low-grade heat energy and nanometer cloths. The device comprises a sewage or seawatercontainer, a box body transparent cover and an installation heat dissipation device, wherein the heat dissipation device comprises a hot water pipe, enhanced heat exchange sheets arranged on the hot water pipe and nanometer cloths, water collection groove clamping grooves are circumferentially formed in the inner wall of the box body, and a condensed water collection groove is fixed in the box body through the water collection groove clamping grooves. According to the invention, the nanometer cloth can be effectively wetted by water so as to ensure the evaporation and supply balance of the water, the nanometer cloth can be well attached to a heat dissipation device with a complex structure based on the flexibility so as to increase the heat absorption effect, and the wetted nanometer clothcan effectively increase the water evaporation surface area so as to substantially improve the water evaporation efficiency, so that the purified water yield is increased, and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and more specifically relates to a high-efficiency water purification device based on low-grade heat energy and nanometer cloth. Background technique [0002] Water is one of the resources that life depends on, but now with the increase of population, the development of industry, and the aggravation of environmental pollution, the supply situation of water resources is becoming more and more severe. In recent years, in order to solve the water supply problem, seawater desalination and sewage treatment have received more and more attention. How to efficiently and cheaply obtain more clean water resources is the most concerned issue. At the same time, due to the universality of water shortage problems in regions, the adaptability of water purification technology to different environments and needs is also very important. [0003] In the process of water treatment, energy supply is unavoid...

AI Technical Summary

Problems solved by technology

Generally, the distillation unit absorbs low-grade heat energy and heats water to evaporate it, although many improvements have been made on this basis, and many different types of low-grade heat energy evaporators have been developed, such as solar-powered cascade evaporators and yarn Core-shaped evaporator, but due to a large amount of heat loss, the efficiency of traditional evaporators is usually lower than 30%. At the same time, the traditional evaporator equipment system is huge and difficult to operate and debug

Some researchers concentrate the absorbed low-grade heat energy in the film by making special nano-film materials, such as nanoporous graphene film and nano-particle array, to form local high temperature, thereby reducing heat loss and speeding up evaporation, which greatly improves the efficiency. Improvement, solar energy (low-grade thermal energy) utilization efficiency can reach 50-70%, but these methods have very high requirements for thin film or foam material, because the cost of material is very high, it is difficult to apply in real life

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