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Heat absorption layer material for vacuum pipe solar water heater

A technology for solar water heaters and heat-absorbing layers, applied to radiation-absorbing coatings, coatings, anti-corrosion coatings, etc., can solve problems such as loss, achieve strong adhesion, not easy to fall off, and good wear resistance

Inactive Publication Date: 2019-03-12
安徽兆拓新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in addition to the energy transfer through heat conduction, the heat-absorbing coating also dissipates heat in the form of heat radiation. Since the intensity of heat radiation is not affected by the vacuum tube, a large amount of internal energy in the heat-absorbing coating passes through the radiation. way lost

Method used

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  • Heat absorption layer material for vacuum pipe solar water heater
  • Heat absorption layer material for vacuum pipe solar water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A heat-absorbing layer material for a vacuum tube solar water heater, the heat-absorbing layer material is located on the outer layer of the inner tube of the vacuum tube; the components of the heat-absorbing layer material include: 100 parts of acrylic modified epoxy resin, 90 parts of curing agent , 45 parts of nano-carbon black, 60 parts of chromium nitrate, 1.2 parts of 2,4-dihydroxybenzophenone, 15 parts of radiation energy storage agent, 30 parts of organic solvent, 7 parts of thermal conductivity additive, 1 part of leveling agent, even Joint agent 2.5 parts.

[0037] Wherein, the curing agent is amino-terminated polydimethylsiloxane.

[0038] The organic solvent is a mixture of ethanol and ethyl acetate in a mass ratio of 7:2; the heat conduction additive is a mixture of α-alumina and sodium nitrite in an equal mass ratio.

[0039] The leveling agent is liquid leveling agent SC-333; the coupling agent is KH-792.

[0040] The outer wall of the inner tube of the...

Embodiment 2

[0042] A heat absorbing layer material for a vacuum tube solar water heater, the heat absorbing layer material is located on the outer layer of the inner tube of the vacuum tube; the components of the heat absorbing layer material include: 120 parts of acrylic modified epoxy resin and 100 parts of curing agent in parts by mass , 65 parts of nano carbon black, 80 parts of chromium nitrate, 2.7 parts of 2,4-dihydroxybenzophenone, 25 parts of radiation energy storage agent, 40 parts of organic solvent, 13 parts of thermal conductivity additive, 2 parts of leveling agent, even Joint agent 3 parts.

[0043] Wherein, the curing agent is amino-terminated polydimethylsiloxane.

[0044] The organic solvent is a mixture of ethanol and ethyl acetate in a mass ratio of 7:2; the heat conduction additive is a mixture of α-alumina and sodium nitrite in an equal mass ratio.

[0045] The leveling agent is solid leveling agent RB503; the coupling agent is SCA-602.

[0046] The outer wall of t...

Embodiment 3

[0048] A heat absorbing layer material for a vacuum tube solar water heater, the heat absorbing layer material is located on the outer layer of the inner tube of the vacuum tube; the components of the heat absorbing layer material include: 108 parts of acrylic modified epoxy resin, 97 parts of curing agent , 54 parts of nano carbon black, 72 parts of chromium nitrate, 1.9 parts of 2,4-dihydroxybenzophenone, 21 parts of radiation energy storage agent, 36 parts of organic solvent, 11 parts of thermal conductivity additive, 1.5 parts of leveling agent, even Joint agent 2.8 parts.

[0049] Wherein, the curing agent is amino-terminated polydimethylsiloxane.

[0050] The organic solvent is a mixture of ethanol and ethyl acetate in a mass ratio of 7:2; the heat conduction additive is a mixture of α-alumina and sodium nitrite in an equal mass ratio.

[0051] The leveling agent is liquid leveling agent SC-333; the coupling agent is KH-560.

[0052] The outer wall of the inner tube of...

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Abstract

The invention relates to the technical field of a heat collection material, in particular to a heat absorption layer material for a vacuum pipe solar water heater. The heat absorption layer material is disposed on an outer wall of a vacuum pipe inner pipe. The heat absorption layer material comprises the following components: acrylate modified epoxy resin, a curing agent, nano carbon black, chromium nitrate, 2,4-dihydroxy benzophenone, a radiation heat storage agent, an organic solvent, a heat conduction aid, a flatting agent and a coupling agent. The organic solvent is a mixture formed by mixing ethanol and ethyl acetate according to a mass ratio of 7:2; the heat conduction aid is a mixture of alpha-aluminum oxide and sodium nitrite in an equal mass ratio; the outer wall of the vacuum pipe inner pipe is coated with an aluminum-nickel-chromium alloy coating, and the heat absorption coating is smeared on the surface of the aluminum-nickel-chromium alloy coating. By adopting the heat absorption layer material, the radiation absorption rate of the vacuum pipe heat collector can be increased, the reflectivity can be reduced, a good heat storage and heat preservation performance can beachieved, and the heat radiation loss can be reduced; and the solar utilization rate of the water heater can be increased.

Description

technical field [0001] The invention relates to the technical field of heat collecting materials, in particular to a heat absorbing layer material for a vacuum tube solar water heater. Background technique [0002] A solar water heater is a heating device that converts the sun's light energy into heat energy, and heats water from low temperature to high temperature, so as to meet the hot water use in people's life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structure. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into heat mainly depends on vacuum heat collecting tubes. Get the hot water you need. At present, solar water heaters on the market are mainly vacuum tube water heaters, accounting for about 85% of the market share. [0003] At present, the most commo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/32C09D5/08C09D7/61C09D7/63C09D7/65C08G59/50
CPCC08G59/504C08K2003/2227C08K2003/2241C08K2201/011C08K2201/014C08L2201/08C08L2205/035C09D5/08C09D5/32C09D7/61C09D7/63C09D7/65C09D163/10C08L29/04C08K3/28C08K3/04C08K5/132C08K3/22C08K5/01C08K3/34
Inventor 陆志鹏
Owner 安徽兆拓新能源科技有限公司
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