Heliostat device and corresponding heliostat system

Abstract

The invention relates to a heliostat device, comprising a mirror frame, a plurality of sub-mirrors, a first transmission mechanism and a second transmission mechanism, wherein the mirror frame is movably disposed on a mirror frame bracket by a rolling shaft; the first transmission mechanism is in transmission connection with the rolling shaft and controls the mirror frame to rotate around the rolling shaft; each sub-mirror is provided with a pitch axis; various pitch axes are mutually parallel; various sub-mirrors are movably disposed in the mirror frame by the pitch axes; the second transmission mechanism is in transmission connection with the pitch axes and controls various sub-mirrors to synchronously rotate around the pitch axes and relative to the mirror frame; and the rolling shaft is not parallel to the pitch axes. The invention further relates to a heliostat system adopting the device. By the heliostat device in the structure and the corresponding heliostat system, wind resistance problems are effectively improved; the all-day continuous working of the heliostat can be realized; simultaneously the reliability is improved; the maintenance and correction are simpler; the problems of shadow / shelter optical efficiency among the sub-mirrors are effectively solved; the optical efficiency of the heliostat is improved; and the application range is relatively wide.

Description

technical field [0001] The invention relates to the field of solar energy equipment, in particular to the technical field of sunlight reflection and light distribution control equipment, and specifically refers to a heliostat device and a corresponding heliostat system. 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 ...

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 + pitch angle / altitude 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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