Large-size heliostat device

Abstract

The invention discloses a large-size heliostat device, and the device comprises a vertical column, a horizontal rotation driving device and a reflection plate, wherein the horizontal rotation drivingdevice comprises a base fixedly connected to the vertical column and an upper base rotationally connected to the base. An eccentric shaft is arranged on the base, and the eccentric shaft deviates fromthe rotation axis of the upper base; at least three hydraulic cylinders are arranged in the circumferential direction of the upper base, and the hydraulic cylinders are rotationally connected with the upper base; the front ends of piston rods of the hydraulic cylinders are rotationally connected with the eccentric shaft; and the reflection plate is rotationally connected to the upper base. The hydraulic cylinders are used as power elements, so the device, compared with a motor, can output a larger torque, and can drive the large reflecting plate to rotate. The main driving device is the hydraulic cylinders, so the hydraulic cylinders, compared with a motor and a speed reducer, are low in cost and simple in structure, and the overall manufacturing cost of a heliostat is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a large heliostat device. Background technique [0002] In the solar thermal power generation system, the heliostat is an important part of the whole power station. Due to the large area of ​​the mirror field, the position of the heliostat to the central heat collecting tower of the mirror field is far away. The function of the heliostat is to track the position of the sun and reflect sunlight to the heat absorber of the central heat collecting tower of the mirror field, so that solar power can be generated The system can receive enough light energy to improve power generation efficiency. A heliostat usually includes a bracket, a reflector, a horizontal rotation drive device, and a pitch drive device. The horizontal rotation device is used to drive the reflector to perform a horizontal rotation movement, and the pitch drive device is used to drive the reflector to...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing large-scale heliostat needs a high-power motor and a large-speed ratio reducer to generate enough torque to drive the mirror to rotate, which leads to the problem of complex structure and high manufacturing cost of the heliostat drive mechanism , to provide a large-scale heliostat device that can provide sufficient torque to drive the mirror to rotate, and has a simple structure and low manufacturing cost

Images