Heliostat system with function of sun pursuing

Abstract

The invention relates to a heliostat system with the function of sun pursuing, which comprises a heliostat, a mirror holder of the heliostat, a bracket of the heliostat, a driving device for sub mirrors of the heliostat and a driving device for the mirror holder of the heliostat, wherein the mirror holder of the heliostat is rotatablely installed on the bracket of the heliostat, the driving device for the mirror holder of the heliostat is respectively connected with the mirror holder of the heliostat and the bracket of the heliostat and is used for driving the mirror holder of the heliostat to rotate around a horizontal rolling shaft, the heliostat comprises at least two sub mirrors of the heliostat, the sub mirrors of the heliostat are rotatablely installed on the mirror holder of the heliostat, the driving device for the sub mirrors of the heliostat is respectively connected with the mirror holder of the heliostat and the sub mirrors of the heliostat and is used for driving the sub mirrors of the heliostat to link around respective horizontal pitching shafts, and the horizontal pitching shafts are arranged in parallel and are also arranged with the horizontal rolling shaft vertically. The heliostat system with the function of sun pursuing, which is disclosed by the invention, has a skillful design, a simple structure and higher reliability, has the function of sun pursuing, can be used for effectively improving the problem of wind resistance, is simpler to maintain and rectify and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of solar thermal power generation and photothermal utilization, in particular to the technical field of heliostat systems, and specifically refers to a heliostat system with a sun-tracking function. Background technique [0002] Since the former Soviet Union designed and built the world's first small tower-type solar thermal power generation test device in 1950 and France built the first tower-type solar thermal power generation system with an electric power of 100kW in the Pyrenees in 1976, in the 1980s Since then, the United States, Italy, France, Spain, Japan, Australia, Germany, Israel and other countries have successively established various types of experimental demonstration devices and commercial operation devices, which have promoted the development and commercialization of solar thermal power generation technology. The existing solar thermal power generation systems in the world mainly include thre...

AI Technical Summary

Problems solved by technology

In order to achieve a relatively high efficiency, the single-sided mirror, the frame and the driving mechanism are often large, and a large-sized mirror will produce a large mirror deformation error, and the huge driving mechanism also makes the cost high

The rotation mode of the azimuth angle + elevation angle of the existing heliostat has a large mechanical hard limit, which is not conducive to protecting the mirror, and will also cause a certain period of out of control during actual operation

In addition, more control and transmission units are required per square meter of mirror, the reliability is lower, and the cost of calibration and maintenance is higher

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