Heat-dissipating glass bottom plate of high-magnification concentrating photovoltaic power generation module receiver and preparation method thereof

Abstract

The invention provides a cooling glass bottom plate of a high-concentration photovoltaic power generation module receiver and a preparation method of the cooling glass bottom plate, and belongs to the technical field of high-concentration solar photovoltaic power generation. The surface, making contact with air, of the cooling glass bottom plate is formed by curved surface geometrical shape arrays arranged according to a certain rule. The preparation method includes the steps that raw materials are selected; fusion is conducted; calendaring molding is conducted, wherein a cooling air port is formed in a glass liquid drainage port, the air port blows air to the middle of glass liquid of the drainage port, and intaglio patterns formed by curved surface geometrical shape arrays arranged according to a certain rule are engraved on the surface of a calendaring roller; annealing is conducted, wherein an annealing kiln comprises a front annealing kiln section A, an annealing region B, a rear annealing kiln section C, a hot air circulation direct cooling section Ret and a normal-temperature section F, a section D is arranged between the rear annealing kiln section C and the hot air circulation direct cooling section Ret, a section E is arranged between the hot air circulation direct cooling section Ret and the normal-temperature section F, and no heating and cooling device is arranged in the section D and the section E. The cooling capacity of the glass bottom plate can be improved, power generation efficiency is improved, and the surface patterns of the glass bottom plate prepared through the preparation method are not deformed.

Description

technical field [0001] The invention relates to the technical field of high-power concentrating solar photovoltaic power generation, and more specifically, to a heat-dissipating glass bottom plate of a high-power concentrating photovoltaic power generation module receiver and a preparation method thereof. Background technique [0002] Solar energy utilization is an important new energy source. It is generally believed that high-power concentrating photovoltaic power generation technology consists of three key technologies: solar cell chip technology, high-power concentrating technology and sun tracking technology. However, there is another important technology---the heat dissipation of the battery chip is usually neglected. Module miniaturization is one of the current design trends of high-power concentrated photovoltaic power generation modules. The aperture and focal length of this module unit lens are small (within 100mm), and while maintaining a certain geometric conce...

AI Technical Summary

Problems solved by technology

However, the previous modules used flat glass, and the radiation heat dissipation of the glass bottom plate is related to the shape and area of ​​the glass surface. The heat dissipation performance of the glass bottom plate of this new module receiver needs to be further improved.

[0004] For the solar heat dissipation glass base plate, there are higher requirements, such as higher glass whiteness to improve the light transmittance of the glass, etc., and in order to make the heat dissipation glass base plate obtain better heat dissipation function, so as to increase the power of the power generation module , the present invention first proposes a glass bottom plate with a microstructure on the surface. The rolling preparation method of ordinary glass disclosed in the prior art is not suitable for solar glass with patterns on the surface. Insufficient light transmittance, etc.

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