A kind of concentrating device based on Fresnel lens

Abstract

The invention discloses a light condensation device on the basis of Fresnel lenses. The light condensation device comprises components such as the Fresnel lenses, photoelectric sensors, a radiating fin, cooling pipes, a circulating pump, a water tank, motors, transmission devices and control chips. The light condensation device has the advantages that the integral light condensation device is fixed onto foundations, specific angles can be formed by the light condensation device and the horizontal planes according to the latitudes of various regions, only Fresnel lens arrays need to carry out transverse and longitudinal two-axis linkage according to specific speeds to carry out sun chasing tracking, and accordingly the sunlight can always keep being focused on a single light condensation target or a plurality of light condensation targets; heat generated by the targets owing to light condensation can be transmitted to cold fluid by bottom heat exchange devices; the light condensation device has flexible requirements on the foundations, load on transmission and driving devices can be lowered to a great extent, the sun chasing tracking precision can be effectively enhanced, and the light condensation device is low in cost, can be conveniently and quickly constructed and calibrated and can be conveniently and quickly maintained in late periods.

Description

technical field [0001] The invention relates to a concentrating device, in particular to a concentrating device based on a Fresnel lens, and belongs to the technical field of concentrating solar energy. Background technique [0002] Solar concentrating technology is a kind of light energy that uses optical elements to concentrate light energy to generate high light intensity. At present, reflection and refraction are mainly used to realize solar concentrating technology, such as tower concentrating, dish Stirling concentrating power generation, C7 Trcaker of SUNPOWER in the United States, etc., all adopt reflective solar concentrating technology; The company's GaAs (gallium arsenide) high-power concentrating module adopts refraction solar concentrating technology. This technology has been commercially applied to a certain extent, indicating that solar concentrating technology can increase the light intensity per unit area and increase the utilization rate of sunlight resour...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantage of this concentrating method is that since the whole system is tracked with the sun, the stress on the support will undoubtedly be increased, and the stability of the support will be reduced; This will increase the inertia of the transmission system, which will cause tracking errors and affect the effect of focusing

Since the components are installed in one piece, the processing accuracy of the Fresnel lens is high, and the assembly accuracy of the components is also high, which leads to a small space for fine-tuning of the solar concentrating equipment during the construction of the solar power station. Small, there are high requirements for precision control in the construction process, which directly leads to the reduction of the fault tolerance space and maintainability of the overall equipment

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