Curved-surface light focusing reflector, machining system, light focusing reflector set and preparation method thereof

Abstract

An embodiment of the invention discloses a curved-surface light focusing reflector, a curved-surface light focusing reflector machining system, a curved-surface light focusing reflector set and a preparation method thereof. A traditional mold is not depended in a process for preparing the curved-surface light focusing reflector. According to different light focusing distances of actual projects, acurved surface radian which makes the current curved-surface light focusing reflector reach a required optimal light focusing effect of a user is calculated. By means of cutting of a numerical control machining tool, a curved-surface radian bearing structure is obtained. Finally a reflecting layer with preset hardness uses the bearing structure as a similar mold for performing fixation and applying is fixedly adhered, thereby preparing the curved-surface light focusing reflector. The curved-surface light focusing reflector is obtained through splicing a plurality of sub-mirrors. The curved surface radian of each sub-mirror is obtained through performing distribution calculation on the integral curved-surface radian of the curved-surface light focusing reflector set according to the splicing position of each sub lens in the lens set. The curved-surface light focusing reflector can be applied in a tower type solar energy power generation heliostat, thereby effectively improving solar heat utilization efficiency and furthermore improving solar heat power generation efficiency.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of solar thermal power generation, in particular to a curved concentrating reflector, a processing system for the concentrating curved reflector, a set of concentrating curved reflectors and a preparation method thereof. Background technique [0002] With the increasing consumption of conventional energy (such as petroleum, coal and other fossil energy), the environmental pollution caused by the consumption of conventional energy is becoming more and more severe, and the reserves of conventional energy are limited, which has prompted the development of new energy sources. (such as solar energy, wind energy, ocean energy, etc.) vigorous research and development. As an environmentally friendly, safe, extensive and sufficient renewable new energy, solar energy is the most promising green energy. [0003] Solar thermal power generation uses large-scale array reflectors to collect solar...

AI Technical Summary

Problems solved by technology

The high-temperature thermal deformation manufacturing process first heats the glass to a softened state, and then forms and tempers it in a mold. After forming, the glass blank is then sprayed with a reflective layer and a protective layer. It depends entirely on the mold. A pair of molds only corresponds to one curved surface Curved mirrors, due to the different focusing distances of the mirror field distribution, the focusing effect will be reduced accordingly, and the manufacturing cost is high; in addition, due to the principle of thermal expansion and contraction or the internal stress Compared with the size of the mirror, there is usually a slight deformation, and the precision of the prepared curved mirror is low, and the concentrating effect is not good, which is not conducive to improving the efficiency of solar thermal power generation.

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