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Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30

An inner and outer surface, multi-layer composite technology, which is applied in the field of high anti-reflection film coating of heat-collecting glass tubes with a length of L4000×aperture D115mm, can solve problems such as no reports, and achieve long service life, simple equipment and mutual solubility. Good results

Active Publication Date: 2010-07-28
常州龙腾光热科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the retrieval results show that existing technologies such as Chinese Patent Publication Nos. CN1761630A, CN1686891A, CN1588593A, and CN1761626A are all limited to transparent substrates and adopt the sol-gel method of coating film technology, while in the L4000× D115mm ultra-large length-to-aperture ratio glass tube inner and outer surface coating technology, has not been reported so far

Method used

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  • Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30
  • Method for coating multiple compound high anti-reflection films on inner surface and outer surface of glass tube with length/aperture ratio greater than 30

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Embodiment

[0042] Embodiment 2, refer to the attached figure 1 .

[0043] A method for coating the inner and outer surfaces of a glass tube with a length / aperture ratio greater than 30 with a multi-layer composite high anti-reflection film, the high anti-reflection coated glass tube prepared by the method comprises a glass tube (1), and the glass tube (1 ) high anti-reflection layer TiO coated on the inner and outer surfaces 2 Thin film layer (2), and TiO inside and outside the tube 2 SiO coated on the surface of the thin film layer 2 Thin film layer (3); said TiO 2 Thin film layer (2) and SiO 2 Thin film layers (3) are arranged alternately; its film coating method is to include the preparation of TiO 2 Sol and preparation of SiO 2 Sol preparation including sol, thin film preparation and film post-treatment, and its

[0044] a, the TiO 2 The preparation of the sol is to adopt the step-by-step hydrolysis method, under the condition of magnetic stirring, add anhydrous ethanol, buty...

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Abstract

The invention discloses a method for coating multiple compound high anti-reflection films on the inner surface and the outer surface of a glass tube with a length / aperture ratio greater than 30. In a compound high anti-reflection glass tube prepared by the method, at least one TiO2 film and at least one SiO2 film are respectively formed. The film coating method comprises the steps of sol preparation by a hydrolysis method, film preparation by a pulling method and low-temperature hot drying coating aftertreatment. The invention has the characteristics of simple and convenient method, good film coating quality, energy consumption saving, long service life of finished products, and the like, and provides technical supports for channel type solar thermal generating equipment.

Description

technical field [0001] The invention relates to a method for coating the inner and outer surfaces of a glass tube with a length / aperture ratio greater than 30, and specifically relates to a set of length L4000×aperture D115mm used for trough solar thermal power generation technology equipment. Coating method of high anti-reflection coating on hot glass tube. It belongs to solar energy utilization equipment technology. Background technique [0002] The high anti-reflection film of the present invention is a coating film that can effectively enhance the transmittance of sunlight. The thickness of the film layer is generally in the range of 50-200nm. [0003] The heat-collecting glass tube involved in the present invention is a channel for heating medium water in trough-type solar thermal power generation technology equipment. The solar energy (light) focused by the high-efficiency reflective silver mirror is received outside the glass tube, so that the medium water is vapor...

Claims

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Application Information

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IPC IPC(8): C03C17/34C03C17/23
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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