Photo-thermal power generation system, heliostat, tracking driving device and fixed base

Abstract

The invention relates to a photo-thermal power generation system, a heliostat, a tracking driving device and a fixed base. The heliostat is composed of a standing column and a tracking driving devicearranged on the standing column. The tracking driving device consists of a fixed base fixedly connected to the standing column and a turntable arranged above the fixed base; the turntable and the fixed base are connected by a bearing; and a reflector is arranged on the turntable. The fixed base has a plate type structure. The bearing and the fixed base are connected through first connecting holesor a first screw post; and the standing column and the fixed base are connected through second connecting holes or a second screw post. The fixed base has a plate type structure and the length of thefixed base in an axial direction of the standing column is small, so that the gravity center of the turntable is reduced indirectly; the overall rigidity of the tracking driving device is enhanced; and connecting flanges and reinforced ribs arranged at the fixed base are removed, so that the weight of the fixed base is reduced and the high processing precision is ensured.

Description

technical field [0001] The invention relates to a photothermal power generation system, a heliostat, a tracking drive device and a fixed base. Background technique [0002] In a solar power plant, multiple heliostats are usually set up on the ground to track the sun’s trajectory, and gather and reflect sunlight to the heat collection tower, where the collected solar energy is converted into electrical energy to generate electricity. Since the position of the sun changes in different time periods, and the distance between different heliostats and the heat collecting tower is also different, the heliostat needs a specific tracking drive device to track the movement of the sun, and the sun The light is reflected onto the collector tower. [0003] The application publication number is CN106575126A, and the Chinese patent application with the publication date of 2017.04.19 discloses an azimuth rotation mechanism of a sun tracker. The rotary supporter of the plate (that is, the...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a fixed base to solve the problems in the prior art that the fixed base leads to a high center of gravity of the turntable, reduces the overall rigidity of the tracking drive device, and at the same time has a large weight and is difficult to guarantee the processing accuracy; the present invention Also provides a tracking drive device using the fixed base; the invention also provides a heliostat using the tracking drive device; the invention also provides a photothermal power generation system using the heliostat

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