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A kind of solar water heater heat collecting tube and manufacturing method thereof

A technology of a solar water heater and a manufacturing method, applied in the field of solar energy, can solve the problems of low heat absorption efficiency, unable to meet people's water demand, etc., and achieve the effects of good film performance, good biocompatibility, and good light transmittance

Active Publication Date: 2018-08-28
HENAN YUXING MICRON DIAMOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current vacuum tube solar water heaters have low heat absorption efficiency and sometimes cannot meet people's water needs.

Method used

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  • A kind of solar water heater heat collecting tube and manufacturing method thereof
  • A kind of solar water heater heat collecting tube and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A solar water heater collector tube, such as figure 1 As shown, it includes an outer tube 1 (made of glass) and an inner tube 2, a vacuum layer is formed between the outer tube 1 and the inner tube 2, and the inner tube 2 is a sleeve tube pressed from nanodiamondene, and the inner tube 2 The outer surface is provided with an infrared reflective layer 3, an absorbing layer 4 and a light-transmitting protective layer 5 in sequence from the inside to the outside, the thickness of the infrared reflecting layer 3 is 100 nm, the thickness of the absorbing layer 4 is 500 nm, and the light-transmitting protective layer 5 The thickness of the light-transmitting protective layer 5 is 60 nm.

[0027] The manufacturing method of the above-mentioned heat collecting tube comprises the following steps:

[0028] 1) Production of the inner tube 2: After mixing the nanodiamondene with the binder mainly composed of epoxy resin and heat-resistant glue at a mass ratio of 5:5, press molding...

Embodiment 2

[0033] A solar water heater collector tube, such as figure 2 As shown, it includes an outer tube 1 (made of glass) and an inner tube 2, a vacuum layer is formed between the outer tube 1 and the inner tube 2, and the inner tube 2 is a sleeve tube pressed from nanodiamondene, and the inner tube 2 is also provided with a glass tube 6, the inner surface of the glass tube 6 is coated with a nanodiamondene layer 7, and the outer surface of the inner tube 2 is sequentially provided with an infrared reflection layer 3, an absorbing layer 4 and a light-transmitting protective layer from the inside to the outside. 5. The thickness of the infrared reflection layer 3 is 300 nm, the thickness of the absorption layer 4 is 1 μm, and the thickness of the light-transmitting protective layer 5 is 30 nm.

[0034] The manufacturing method of the above-mentioned heat collecting tube comprises the following steps:

[0035] 1) First coat the inner surface of the glass tube 6 with a nanodiamondene ...

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Abstract

The invention discloses a solar water heater heat collection pipe and relates to the technical field of solar energy. The solar water heater heat collection pipe comprises an outer pipe body and an inner pipe body. A vacuum layer is formed between the outer pipe body and the inner pipe body. The inner pipe body is a sleeve formed by pressing nano diamond alkene. The outer surface of the inner pipe body is sequentially provided with an infrared reflective layer, an absorption layer and a light transmittance protective layer from inside to outside. The invention also provides a manufacturing method of the solar water heater heat collection pipe. The manufacturing method comprises the following steps that the inner pipe body is manufactured; the infrared reflective layer is deposited; the absorption layer is coated; and the light transmittance protective layer is deposited, so that the solar water heater heat collection pipe is obtained. According to the solar water heater heat collection pipe and manufacturing method of the solar water heater heat collection pipe, the sleeve made from the nano diamond alkene serves as the inner pipe body of the heat collection pipe, and the heat conductivity of the nano diamond alkene is very high and reaches up to 120 W.K<-1>.cm<-1>, so that rapid heat conduction is achieved, energy sources are saved, and the using efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a heat collecting tube of a solar water heater and a manufacturing method thereof. Background technique [0002] Solar energy refers to the thermal radiant energy of the sun, which is generally used to generate electricity or provide energy for water heaters. The basic principle of solar thermal utilization is to collect solar radiant energy and convert it into heat energy through the interaction with matter for use. At present, common solar collectors mainly include flat plate collectors, vacuum tube collectors, ceramic solar collectors, and focusing collectors. [0003] A solar water heater is a device that converts sunlight energy into heat energy, and heats water from low temperature to high temperature to meet the needs of hot water in people's life and production. In daily life, vacuum tube solar water heaters are mainly used. Vacuum tube solar water heaters are compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24S70/10F24S70/20C23C28/00C23C14/35C23C16/27C23C14/20
CPCY02E10/40
Inventor 李岚赵国磊武艳强
Owner HENAN YUXING MICRON DIAMOND CO LTD
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