Membrane structure of high-temperature oxidation-resistant selective absorption membrane for inner pipe of condensation solar thermal power generation collector pipe

A high-temperature anti-oxidation and concentrated solar energy technology, which is applied in solar thermal power generation, solar thermal devices, heating devices, etc., can solve the problems of insufficient component structure, poor high-temperature anti-oxidation performance, and incompetence for work tasks.

Inactive Publication Date: 2011-10-26
常州龙腾光热科技股份有限公司
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  • Application Information

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Problems solved by technology

This kind of TiN or TiAlN film is usually only able to work normally in the temperature range of 350~400°C due to its insufficient structural composition and poor high temperature oxidation resistance.
Undoubtedly, the

Method used

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  • Membrane structure of high-temperature oxidation-resistant selective absorption membrane for inner pipe of condensation solar thermal power generation collector pipe
  • Membrane structure of high-temperature oxidation-resistant selective absorption membrane for inner pipe of condensation solar thermal power generation collector pipe

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Embodiment Construction

[0021] One of the specific implementation modes, as attached figure 1 shown.

[0022] A film system structure of a high-temperature anti-oxidation selective absorption film used for the inner tube of a concentrated solar thermal power generation heat collector tube, including a stainless steel substrate 1, on the surface of the stainless steel substrate 1, Ti film 2 and TiAlON film 3 in sequence from inside to outside and Al 2 o 3 film4. The TiAlON film 3 includes a first TiAlON film 3-1 with a high N content and a second TiAlON film 3-2 with a low N content, which are arranged in sequence from the inside to the outside. Both the thicknesses of the first TiAlON film 3-1 with high N content and the second TiAlON film 3-2 with low N content are in the range of 60-90 nm, and the total thickness of the two is in the range of 120-180 nm. The thickness of the Ti film 2 is in the range of 100-150nm, Al 2 o 3 The thickness of the film 4 is in the range of 50-100 nm. The mass fr...

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Abstract

The invention discloses a membrane structure of a high-temperature oxidation-resistant selective absorption membrane for the inner pipe of a condensation solar thermal power generation collector pipe, which is mainly characterized by comprising a stainless steel substrate (1), wherein a Ti membrane (2), a TiAlON membrane (3) and an Al2O3 membrane (4) are sequentially arranged on the surface of the stainless steel substrate (1) from interior to exterior. The membrane structure disclosed by the invention has the characteristics of reasonable membrane structure, strong high-temperature oxidation resistance, high solar absorptivity, low reflectivity, long service life and the like.

Description

technical field [0001] The invention relates to a film system structure of a high-temperature-resistant and anti-oxidation selective absorption film used for the inner tube of a solar thermal power generation heat collecting tube. Background technique [0002] The solar absorbing film (also called coating) on ​​the surface of the inner tube of the high-temperature solar thermal power generation collector tube is mainly divided into selective absorption coating based on trough thermal power generation and selective absorption coating based on tower thermal power generation. coating. To maximize solar thermal power generation efficiency, coatings with high solar absorption and low reflectivity are ideal solar absorbing coatings. [0003] The heat collecting tube of the present invention is a heat collecting tube of a trough-type concentrating solar thermal power generation heat collector. [0004] Since the steam inlet temperature of the commonly used turbo-generator is abov...

Claims

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Application Information

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IPC IPC(8): F24J2/48B32B9/04B32B15/00
CPCY02E10/40F24S70/25F24S70/225
Inventor 郭廷玮俞科
Owner 常州龙腾光热科技股份有限公司
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