Dual-axis tracking multiple Fresnel lens integrated solar concentrating heat collection system

Abstract

The invention discloses a dual-axis tracking multiple Fresnel lens integrated solar concentrating heat collection system. The system comprises a condenser, a dual-axis tracking platform, a heat absorber and a tracking controller, wherein the condenser comprises a fixing frame, a plurality of Fresnel lenses and reflector elements. The Fresnel lenses and the heat absorber are fixed on the fixing frame; the Fresnel lenses directly face the sun; one reflector element is arranged below each Fresnel lens; the reflector elements are capable of reflecting sunlight focused by the Fresnel lenses to theheat absorber; the fixing frame is fixedly arranged on the dual-axis tracking platform; and a dual-axis tracker of the dual-axis tracking platform is connected with the tracking controller. The systemis simple in structure, low in cost and good in bearing rigidity; the application of small area of the Fresnel lenses to the high-power solar concentrating heat collection system is achieved; and moreover, dual-axis tracking of the condenser is achieved by adopting parallel connected link mechanisms, so that the manufacturing and installation cost of the solar concentrating heat collection systemis further reduced.

Description

technical field [0001] The invention belongs to the field of concentrating solar heat utilization, in particular to a dual-axis tracking multi-Fresnel lens integrated solar concentrating heat collection system. Background technique [0002] Solar energy is clean, environmentally friendly, abundantly supplied and widely distributed renewable energy. Concentrating solar thermal utilization is an important way to develop and utilize solar energy resources. It can not only provide thermal energy supply for industries, households and other places, but also further couple and dock with conventional steam turbine power generation equipment to realize solar energy to electric energy. This program is considered to be an important way to solve the problems of energy shortage and environmental pollution. The working principle of solar thermal power generation is: use the concentrator to gather the solar radiation energy in the cavity receiver, and then heat the fluid working medium in...

AI Technical Summary

Problems solved by technology

The two-axis tracking method is enough. Azimuth-pitch, pitch-roll, spin-pitch and polar axis are four typical two-axis tracking methods. However, traditional two-axis tracking devices generally use gear transmission structures, not only their own The weight is heavy, and the manufacturing precision of the gear transmission device is high, which is not conducive to reducing the manufacturing cost of the entire concentrating system

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