Glass tempering furnace with surface modification effect and use method thereof

Abstract

The invention provides a glass tempering furnace with a surface modification effect and a use method thereof. The glass tempering furnace comprises a piece feeding table (1), wherein a first heating furnace (2) is arranged at one side of the piece feeding table (1). The glass tempering furnace is characterized in that a second heating furnace (3) is arranged at one side of the first heating furnace (2); a wind grid (4) is arranged at one side of the second heating furnace (3); a piece discharge table (5) is arranged at one side of the wind grid (4). Photovoltaic glass is sequentially subjectedto activation modification of the first heating furnace and the second heating furnace and is fed into a hot air gird to be subjected to quenching, so that the modified photovoltaic glass can be obtained from the piece discharge table. The glass tempering furnace has the advantages that the structure is simple; the operation is convenient; the problem of power generation power attenuation after the photovoltaic glass in the prior art is used for a period of time is effectively solved.

Description

Technical field: [0001] The invention relates to the technical field of glass tempering, in particular to a glass tempering furnace for surface modification and a use method thereof. Background technique: [0002] In order to improve the power generation efficiency of photovoltaic cells, people apply anti-reflection film on the surface of photovoltaic glass, which can increase the sunlight transmittance, thereby improving the power generation efficiency of photovoltaic cells. The widely used anti-reflection film is a thin film with silicon dioxide as the main component. In order to meet the requirements of high strength and film adhesion of photovoltaic glass, the existing technology is to first coat silicon-based coating solution on the surface of photovoltaic glass. , and then use the tempering furnace to simultaneously temper the glass and the heat treatment of the film layer. The tempering furnace is mainly composed of a heating furnace and an air grid. After the coated ...

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Problems solved by technology

[0003] However, the transmittance of this anti-reflection film will decrease after 1 to 2 years of use, resulting in attenuation of photovoltaic cell power.

There are many reasons for the decrease in transmittance, one of the important reasons is: there are a large number of hydroxyl groups on the surface of the silicon-based anti-reflective coating, and the hydroxyl groups are very easy to absorb water and dirt in the environment, causing incident sunlight to scatter. After a certain period of accumulation, the It will seriously reduce the power generation efficiency of photovoltaic cells

The tempering furnace of the prior art can only perform glass tempering and film sintering, and cannot eliminate surface hydroxyl groups

There is also a method of reducing hydroxyl groups through surface modification, but it is time-consuming, laborious, and uneconomical to reheat and modify the tempered anti-reflection film glass. At present, no manufacturer does this, nor is it used for reprocessing suitable equipment for

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