Method and device for trough solar heat collector to automatically track solar trace

Abstract

The invention discloses a method and a device for a trough solar heat collector to automatically track solar trace. The method comprises the following steps of: arranging a fulcrum bushing on the trough solar heat collector, fixing the fulcrum bushing on a supporting shaft of a pedestal, arranging two crankshafts on the fulcrum bushing, controlling two hydraulic cylinders to push or pull the two crankshafts to rotate around the supporting shaft via a hydraulic control device through a solar trace sensor or a DPU controller, and adjusting postures of the trough solar heat collector. The invention adopts the solar trace sensor or the DPU controller to control a solar tracking system, so the trough solar heat collector can normally work in sunny days, can also normally work in cloudy days, and can automatically return to the initial state which begins to receive thermal energy of sunlight in the morning at night. The method and the device have the advantages of good universality, high tracking accuracy, good condensation, and high heat collection efficiency.

Description

technical field [0001] The invention relates to an automatic tracking method and device, in particular to a method and device for a trough solar heat collector to automatically track the sun's trajectory. Background technique [0002] In the solar thermal power generation system, the sun's light energy is concentrated at one point or a line, and a heat absorber or a heat collecting tube is arranged on a concentrated point or a line, and the heat absorber or heat collecting tube The heat storage medium is heated, and then the heat of the heat storage medium is transferred to the work medium through heat exchange, and the medium drives the steam turbine to do work and generate electricity. In order to improve the heat collection efficiency, it is first necessary to improve the light-gathering performance of the reflector. In addition, it is also necessary to ensure that the sunlight-receiving surface of the reflector is always facing the sun. This requires a device that can au...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are those using mechanical transmission technology, but the tracking accuracy is not high, and the longer the device is used, the greater the tracking error; some only use the ray tracing device, and when it is cloudy or the light is not good, the trough heat collector device can not be used; also adopt some simple control techniques, etc., compared with the present invention, there are certain limitations and gaps in terms of versatility, degree of automation, tracking accuracy, etc.

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