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Multilayer coating capable of absorbing solar energy

A technology of multi-layer coatings and solar energy, applied in the field of multi-layer coatings that absorb solar energy, can solve the problem that the performance of photothermal conversion materials in absorbing heat and storing heat is not high, the photothermal conversion efficiency of solar collectors is not too high, and the design of collectors problems such as suboptimal, to achieve the effect of low cost, high conversion efficiency and high absorption capacity

Inactive Publication Date: 2015-06-03
QINGDAO SPARKLE ELECTRONICS SCI & TECH
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Problems solved by technology

[0002] At present, the light-to-heat conversion efficiency of various solar collectors in the world is not very high. The key reason is that in addition to the poor design of the collector, the performance of light-to-heat conversion materials to absorb heat and store heat is also an important reason.

Method used

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Embodiment Construction

[0007] When sunlight irradiates the first layer, that is, the anti-sunlight reflection layer, this layer only absorbs and does not reflect the sunlight irradiated on the coating, so as to prevent heat loss due to sunlight reflection. The second layer, the cermet layer that absorbs sunlight heat, absorbs most of the sunlight. The sunlight absorbed by the second layer is transmitted to the water pipes in contact with the water through the third layer, which is made of copper, gold, nickel and other metal layers with good thermal conductivity.

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Abstract

The invention provides a multilayer coating capable of absorbing solar energy. According to the technical scheme, a first layer is a sunlight reflection prevention layer which only absorbs sunlight irritated to the coating instead of reflection and prevents heat from being lost by sunlight reflection; the reflection prevention layer is made from transparent and heat-isolating silicon oxide; a second layer is a metal ceramic layer capable of absorbing the heat of the sunlight; a third layer is metal layer, which is made from copper, gold, nickel and the like and is high in heat conduction property, and is used for transmitting the absorbed heat to a water pipe which is in contact with water. The total thickness of the three layers of materials is about 100 nanometers. The multilayer coating is extremely high in capacity of absorbing the radiation of the sun, can suppress outwards secondary infrared radiation of the absorbed energy and is high in stability.

Description

technical field [0001] The invention provides a multilayer coating for absorbing solar energy, in particular a multilayer coating for absorbing solar energy used on a solar collector. Background technique [0002] At present, the light-to-heat conversion efficiency of various solar collectors in the world is not very high. The key reason is that in addition to the poor design of the collector, the performance of light-to-heat conversion materials to absorb heat and store heat is also an important reason. [0003] In order to overcome the above-mentioned problems, the present invention has produced a multi-layer coating that absorbs solar energy, and the multi-layer coating can enable the solar collector to convert 98% of the received sunlight into heat energy, which greatly saves the cost. Contents of the invention [0004] The object of the present invention is to provide a multi-layer coating for absorbing solar energy aiming at the defects in the prior art. [0005] Th...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B18/00B32B19/04C09D5/32
CPCB32B15/04B32B18/00C09D5/32
Inventor 谭秀航
Owner QINGDAO SPARKLE ELECTRONICS SCI & TECH
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