A solar focusing apparatus capable of tracking multi-light reflection paraboloid

Abstract

A solar focusing apparatus capable of tracking sun light rays includes a plurality of rotatable light reflection paraboloid plates in parallel arrangement, a confocal axial fixed small light reflection paraboloid plate with dimension smaller than that of the light reflection paraboloid plate is provided in the focal axis adjacent domain of each light reflection paraboloid plate, the slope angles of every small light reflection paraboloid plate are different, and the axial plane of the plurality of small light reflection paraboloid plates are intersected at the same intersecting line or adjacent domain A. A light-heat conversion tube parallel to the focal axis of the light reflection paraboloid plate is provided in the adjacent domain A. The plurality of light reflection paraboloid plates are connected to the sun ray tracing device, and rotate around the focal axis of the light reflection paraboloid plate under the control of the sun ray tracing device, so that its axial plane is parallel to the sun light ray all along. The invention does not need complicated piping, and can assemble the optical energy of the plurality of light reflection paraboloid plates into a same region, thereby having low cost, high light-heat conversion efficiency, and easy implementation.

Description

【Technical field】 [0001] The invention relates to a solar device, in particular to a solar concentrating device capable of tracking sunlight. 【Background technique】 [0002] As everyone knows, solar energy is inexhaustible, but people have not yet been able to use it on a large scale. With the reduction of fossil energy such as coal, oil, and natural gas and the continuous rise in price, it has become more and more important for humans to directly obtain energy from solar energy. At present, various solar energy utilization devices have been used, such as photoelectric conversion and photothermal conversion devices. Among the larger solar concentrators, one is a trough system and the other is a tower system. Among them, the trough system is composed of a plurality of trough-type light-reflective parabolic panels, and its defect is that each trough-type light-reflective parabolic panel is equipped with a light-to-heat conversion tube at the focal point, and must be connecte...

AI Technical Summary

Problems solved by technology

Among them, the trough system is composed of a plurality of trough-type light-reflective parabolic panels, and its defect is that each trough-type light-reflective parabolic panel is equipped with a light-to-heat conversion tube at the focal point, and must be connected through a complicated pipe network, so the production cost High, poor reliability, low light-to-heat conversion efficiency

The tower system is composed of a tall tower and a huge light-reflecting parabolic panel. The light-reflecting parabolic panel can rotate with the sun's rays and focus the sunlight on the light-to-heat conversion device on the top of the tower. When the solar energy is high, its three-dimensional geometric size is huge, the structure is complex, and the cost is high

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