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

Abstract

The invention discloses a radiating glass base plate of a high concentration photovoltaic power generation module receiver and a preparation method thereof, and belongs to the technical field of high concentration solar photovoltaic power generation. The surface, making contact with the air, of the radiating glass base plate is formed by polyhedron geometrical shape arrays which are arrayed according to a certain rule. The preparation method includes the steps of raw material selection, fusion, calendaring molding and annealing. According to the step of calendaring molding, a cooling air opening is formed in a discharging opening of molten glass, the air opening blows air to the middle of the molten liquid of the discharging opening, and intaglio patterns formed by the polyhedron geometrical shape arrays which are arrayed according to the certain rule are engraved on the surface of a calendaring roller. According to the step of annealing, an annealing furnace comprises an annealing furnace front area A, an annealing area B, an annealing rear area C, a heated air circulation direct cooling area Ret and a normal temperature area F. An area D is arranged between the annealing rear area C and the heated air circulation direct cooling area Ret. An area E is arranged between the heated air circulation direct cooling area Ret and the normal temperature area F. No heating and cooling device is arranged in the area D and the area F. By means of the radiating glass base plate of the high concentration photovoltaic power generation module receiver and the preparation method thereof, the radiating capacity of the glass base plate can be improved, so that the power generation efficiency is improved, and the surface patterns of the glass base 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...

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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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