A Fixing Device for High Precision Curved Mirror

Abstract

The invention provides a fixing device for a high-precision curved reflector, which at least includes two parts, a mirror base and a support, and is characterized in that the mirror base is fixed on the back or side of the curved reflector, along the The bending direction is arranged continuously or at intervals; the supporting bracket and the mirror base can be matched and connected, and the accurate surface curvature of the curved reflector can be maintained through the shape and fixing force of the supporting bracket. The fixing device can provide high-precision support for various surface-shaped curved surface mirrors, and the structure for fixing the support has the characteristics of simple design, low manufacturing and processing costs, easy installation and replacement, and the like.

Description

technical field [0001] The invention relates to the field of glass products and processing, in particular to a fixing device for a curved reflector applied in the field of solar energy. Background technique [0002] At present, in many industrial installations, especially in solar concentrating systems, concentrating mirrors of various shapes are often used. Concentrating mirrors mainly include trough parabolic mirrors, rotating parabolic mirrors, curved spherical mirrors, etc.; and micro-curvature heliostat concentrating mirrors or zero-curvature mirrors (planar mirrors) in the field of tower power generation mirrors. [0003] Curved mirrors include hot-bent mirrors, hot-bent toughened mirrors, and cold-bent mirrors. Recently, researchers have devoted more energy to curved mirrors manufactured by mechanical cold deformation; the application number is 201020680479.5, and the utility model name is a The Chinese patent application for the curved mirror and its manufacturing m...

AI Technical Summary

Problems solved by technology

This method is inconvenient to install, as time goes by, there will be fixed locking between the screw and nut, which will bring difficulties to adjustment and replacement

And when the screw or nut torque is too large, it will damage the bonding and fixing foundation, causing the lens to be scrapped

There are often strong winds in solar energy application areas. This kind of mirror fixing method concentrates the shape and fixing force of the bracket on the lens on a few limited points, which will cause high stress concentration near the fixing point and there is a risk of breaking; in addition, this kind of fixing This method not only cannot use the support system to guarantee the reflective degree of the curved surface of the lens, but also has the weakness that the shape of the curved surface changes when the lens is subjected to external forces (such as wind blowing), which affects the focusing accuracy and efficiency

In addition, in practical applications, another fixing method is to use the edge bead to press and fix the curved mirror on the support bracket with the required curvature, so as to achieve the effect of fixing and maintaining the curvature, but at this time the edge bead of the mirror is covered on the mirror surface At the top, blocking part of the sunlight will affect the utilization rate of the mirror surface. At the same time, because the bead is raised on the mirror surface, it will accumulate dust and affect the convenience of cleaning, and this method is very inconvenient for fixed installation.

Images