Dish solar light concentrator

Abstract

The invention discloses a dish solar light concentrator which comprises a reflection mirror and a dish framework defined by radial supports and peripheral supports and multiple closed reflection mirror installing areas defined by radial supports and peripheral supports. No less than three angle adjustment mechanisms are arranged on the surrounding edge of any one reflection mirror installing area, each angle adjustment mechanism comprises a fixed end and an acting end, and the reflection mirror is fixedly connected with the acting ends of the angle adjustment mechanisms. After installation of the reflection mirror is completed, the distortion and inclination of the whole reflection mirror face are adjusted through the angle adjustment mechanisms arranged in the reflection mirror installing areas according to the shape and size of a focal spot formed through focusing of the reflection mirror, the reflection mirror moves with the acting ends of the angle adjustment mechanisms in the adjustment process, the focusing accuracy of the focal spot of the reflection mirror of the light concentrator can be controlled in an error range by adjusting and comparing the focal spot with a standard focal spot in shape, size and position, and accordingly the working efficiency of a Stirling engine is effectively improved while the Stirling engine is effectively prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of solar thermal power generation, and more specifically relates to a dish-type solar concentrator used in the technical field of solar thermal power generation. Background technique [0002] With the depletion of traditional energy sources, solar thermal power generation has increasingly important social and economic significance. The dish-type Stirling thermal power generation system is one of the main technical routes of solar thermal power generation. It has high photothermal conversion efficiency and has a good development prospect. It is currently the mainstream solar thermal power generation utilization technology that countries around the world are competing to study. [0003] The photoelectric conversion component of the dish-type Stirling thermal power generation system is a Stirling generator. Its function is to absorb the solar light energy gathered by the concentrator through the thermal head, c...

AI Technical Summary

Problems solved by technology

[0004] When there is a problem with the focusing of the condenser mirror, it may cause errors in the size, position, and shape of the focused spot, which may cause the focal spot to deviate from the position of the thermal head or cause uneven energy distribution, resulting in uneven heat absorption by the thermal head, resulting in transmission The energy given to each cylinder is not uniform, which makes the work of each cylinder of the Stirling machine unbalanced, reduces the efficiency of the Stirling machine, and will damage the Stirling machine in severe cases; on the other hand, if the position and shape errors are large, or the focal spot The uneven energy distribution is very serious, and local high temperature spots will be formed on the front panel of the Stirling machine or the thermal head, causing the front panel to be burned or the heat-absorbing tube on the thermal head to be overheated, or even ablated. If the front panel of the forest machine is burned or the heat pipe is burned out, it may damage the inside of the Stirling machine or cause the high-pressure hydrogen gas in the pipe to be ejected. If it is directly exposed to the high temperature of the scorching spot, it will have very serious consequences.

[0005] In the actual design and installation process, the dish solar concentrator mirrors are usually arranged according to the design method, but there are errors in the mirror manufacturing and installation process, which will easily cause the position of the focused spot to deviate from the Stirling Thermal head position

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