Portable all-glass evacuated solar collector tube pressure-bearing seawater distilling desalinator

Abstract

The invention relates to a portable all-glass evacuated solar collector tube pressure-bearing seawater distilling desalinator in the technical field of seawater desalination. The desalinator comprises evacuated solar collector tubes, a folding type simplified CPC (Compound Parabolic Concentrator) light condensing plate, a folding bracket and a condensing pipe, wherein the folding type simplified CPC light condensing plate is installed on the upper surface of an oblique beam of the folding bracket; the evacuated solar collector tubes are inserted into heat collector tube support plates at both ends of the folding bracket; the condensing pipe is installed on the lower surface of the oblique beam of the folding bracket; and a central line of the evacuated solar collector tubes is mutually superposed with a light condensing central line of the folding type simplified CPC plate. The invention has small size, light weight, simple structure, foldable heat collecting plate and safe and reliable carrying; an inner tube has elasticity and can be attached to a glass tube all the time for reducing thermal contact resistance; water can humidify the heat collecting surface of the whole glass tube under any condition, and the heat transfer efficiency is high; and the water steam condensation can be realized directly by solar energy, the desalinator is safe, and even if the tubesa re exploded, hot water and water steam can be stored in the metal inner tube.

Description

technical field [0001] The invention relates to a device in the technical field of seawater desalination, in particular to a portable solar all-glass vacuum heat collecting tube pressurized seawater distillation and desalination device. Background technique [0002] With the increasing shortage of fresh water resources in the world, people pay more and more attention to seawater desalination technology. Traditional seawater desalination technologies such as distillation, electrodialysis, freezing, etc. have high equipment cost, high power consumption or fuel consumption, and the mechanism is not easy to clean. , fault maintenance is difficult etc. deficiencies, thereby can not popularize. And these methods are applicable to large-scale seawater desalination devices, and are not suitable for some special occasions, such as military use, field tourism, ships, islands, etc. In these places with strong mobility, remote locations and narrow sites, a small portable solar desalina...

AI Technical Summary

Problems solved by technology

This type of heat collecting tube is expensive, the area of ​​the heat collecting plate is small, and the heat collecting efficiency is low.

[0006] Summarizing the existing invention patents for small seawater desalination devices with glass heat collector tubes, especially the seawater desalination device described in the above application number 98225969.7, it can be clearly seen that there are several common problems in the existing patents: one is the heat collector plate They are basically non-folding, bulky, and difficult to disassemble and carry

The second is that the glass tubes are closed with rubber plugs, which have poor sealing performance and cannot withstand pressure.

It is difficult to guarantee the sealing condition after long-term heating and use

The third and most important thing is that these devices directly heat seawater into glass tubes, and the water cannot wet the entire heat transfer surface.

Therefore, there is no commercialized portable seawater desalination device at present

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