Concentric circular rail type tracking light concentrating device

Abstract

The invention discloses a concentric circular rail type tracking light concentrating device. Illumination horizontal angle sensors are used for detecting the irradiating direction of a light source inreal time. When the irradiating direction of the light source changes and a reflecting focus point deviates from a heat absorber in the horizontal direction, a controller commands reflecting mirrorsto horizontally run to an adjusting mechanism, so that a reflecting mirror array integrally rotates by a certain angle in the horizontal plane and is aligned with the light source again to enable thefocus point to horizontally move to the heat absorber again. A focus point vertical height sensor is used for detecting the height of the formed focus point by the multiple reflecting mirrors in realtime. When the focus point changes along with the irradiation height of the sun to deviate from the heat absorber in the vertical direction, the controller commands a reflecting mirror pitch angle adjusting mechanism to operate and synchronously adjust the pitch angles of all the reflecting mirrors to enable the focus point to vertically move the heat absorber again. The concentric circular rail type tracking light concentrating device enables the focus point to coincide with the position of the heat absorber all the time through real-time adjustment on the focus point in the horizontal direction and the vertical direction.

Description

technical field [0001] The invention relates to a light energy collection device, in particular to a device for concentrating light by using concentric circular rails to track the azimuth of a light source. Background technique [0002] In the existing concentrated solar power generation system, several large reflectors are installed on the ground to form an array to reflect and gather sunlight to the heat absorber on the receiving tower. The heat absorber converts solar energy into heat energy to drive the generator to run. The prior art has been able to accomplish that when the sun faces the reflector array, the light reflected by all the reflectors will be gathered on the heat absorber to form a concentrating point. However, because the installation positions of the reflector and the heat absorber are fixed, and the angle of the sun’s irradiation will continue to change within a day, the spot where the reflective mirror array reflects sunlight and the heat absorber on the...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the existing solar concentrating power generation system cannot always keep the concentrating point and the position of the heat absorber coincident, resulting in the waste of light energy, the present invention provides a device for concentrating light by using concentric circular rails to track the direction of the light source. No matter how the direction of sunlight changes in a day, the height of sunlight rises and falls with the change of seasons throughout the year, and the concentrated light formed by reflecting sunlight from multiple reflectors always shines on the heat absorber at the top of the receiving tower , in order to achieve efficient use of light energy to generate electrical energy

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