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Full-sealed anti-freezing and waterproof heat insulation flat plate type solar heat collector

A solar collector, flat-plate technology, applied in solar collectors, components of solar collectors, solar collectors using working fluid, etc., can solve problems such as easy corrosion and unfavorable application.

Active Publication Date: 2017-07-28
SHANGHAI TANSUO ENERGY ENVIRONMENTAL SERVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The most widely used solar collectors are divided into tube type and plate type. Among them, solar panel collectors overcome the shortcomings of tube collectors, including upper and lower substrates, and the lower substrates are made of copper, aluminum alloy, and stainless steel. Such materials are easily corroded outdoors, which is not conducive to its application

Method used

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  • Full-sealed anti-freezing and waterproof heat insulation flat plate type solar heat collector
  • Full-sealed anti-freezing and waterproof heat insulation flat plate type solar heat collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation process of the antifreeze waterproof layer is:

[0027] Step 1, process the lower substrate: polish the lower substrate with 800-mesh sandpaper for 2 hours, then ultrasonically clean it with acetone, ethanol, and deionized water in sequence, and dry it;

[0028] Step 2, depositing a tungsten film array: coating a layer of photoresist on the surface of the lower substrate, drying, exposing and developing, and then using magnetron sputtering technology to evaporate a layer of tungsten film on the developed photoresist surface, The thickness is 1 μm, and then the photoresist is washed off with acetone, and a tungsten film array is formed on the surface of the lower substrate;

[0029] Step 3, configure the titanium dioxide precursor solution: mix 12.5ml of absolute ethanol, 0.5ml of deionized water and 0.25ml of hydrochloric acid, and then slowly add the mixed solution to 10ml of tetrabutyl titanate and 12.5ml of anhydrous In the mixed solution of ethanol,...

Embodiment 2

[0037] The specific steps are as in Example 1, the difference is that after depositing the tungsten film array and before electrodepositing to prepare the nano-titanium dioxide film, tungsten oxide nanowires are grown by CVD method: the lower substrate after depositing the tungsten film array is put into a tube furnace , using the CVD method to grow tungsten oxide nanowires, the length of the tungsten oxide nanowires is 3 μm;

[0038]After the lower substrate is prepared by the above-mentioned antifreeze and waterproof layer, due to the superhydrophobic performance, it has a good antifreeze and waterproof effect, and has good corrosion resistance and good compactness; for hydrophobicity, when the thickness of the nano-titanium dioxide film is different, the on the lower substrate. The antifreeze waterproof layer exhibits different contact angles, as shown in the following table:

[0039] Thickness of nano-titanium dioxide film / μm contact angle / degree 0 125 ...

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PUM

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Abstract

The invention relates to a full-sealed anti-freezing and waterproof heat insulation flat plate type solar heat collector. The solar heat collector comprises an upper base plate, a lower base plate, a heat absorption layer, a frame support and multiple upholders. The lower base plate is a heat collection base plate and is made of a metal material good in heat conductivity. The surface of the lower base plate is coated with a micro-nano structure based anti-freezing and waterproof layer. A super-hydrophobic structure is constructed by the anti-freezing and waterproof layer through a micro-nano structure layer, contact of the lower base plate and water vapor and the like is blocked through the super-hydrophobic principle, the anti-freezing and waterproof effects can be achieved effectively, and meanwhile the anti-corrosion effect on the lower base plate is obvious.

Description

technical field [0001] The present application relates to the field of solar heat collectors, in particular to a completely sealed, antifreeze, waterproof, and heat-preserving flat-plate solar heat collector. Background technique [0002] With the development of modern industry and society, human society is increasingly dependent on resources and energy. The resources on the earth are limited, and the problem of energy is more prominent. Solar energy is the most abundant energy available to human beings, and it is also the cheapest and cleanest energy. Solar cells and solar collectors are the main ways to directly use and absorb solar energy. [0003] The most widely used solar collectors are divided into two types: tube type and plate type. Among them, the solar panel type collector overcomes the shortcomings of the tube type collector, including the upper base plate and the lower base plate, and the lower base plate is copper, aluminum alloy, stainless steel. Such materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/20F24J2/48F24J2/46F24S10/50
CPCF24S10/50F24S80/00Y02E10/44
Inventor 不公告发明人
Owner SHANGHAI TANSUO ENERGY ENVIRONMENTAL SERVICES CO LTD
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