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Fresnel solar collector and light condensation unit thereof

A technology of concentrating unit and heat collector, which is applied in the direction of solar heat collector, solar thermal device, solar thermal energy, etc., can solve the problem of high cost of concentrating unit, overcome uneven heat deformation, improve heat absorption efficiency, reduce cost effect

Inactive Publication Date: 2012-06-06
YIKEBO ENERGY TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a low-cost heat collector and its concentrating unit that is conducive to improving heat absorption efficiency, and solve the problem of high cost of the concentrating unit in the prior art

Method used

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  • Fresnel solar collector and light condensation unit thereof
  • Fresnel solar collector and light condensation unit thereof
  • Fresnel solar collector and light condensation unit thereof

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Embodiment Construction

[0015] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] First, please refer to figure 1 with figure 2 , figure 1 It is a schematic diagram of the structure of the Fresnel solar collector and its light-concentrating unit of the present invention, figure 2 It is a top view of the condensing unit of the Fresnel solar collector and its condensing unit of the present invention. The condensing unit 11 is composed of a plurality of plane mirrors 12, which are placed side by side with each other to form an arc shape. The parallel light of the sun hits the plane mirror and is reflected to the heat collector 14. Since the cost of using a flat mirror is much lower than that of an arc-shaped condenser lens, this structure greatly reduces the cost on the premise of ensuring the condensing effect.

[0017] Next, please refer to image 3 , image 3 It is a schematic diagram of the structure of the Fresnel...

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Abstract

The invention provides a Fresnel solar collector and a light condensation unit thereof. The Fresnel solar collector comprises a receiver and a light condensation module, the light condensation module is used for reflecting sunlight to the receiver, the receiver is arranged on the light condensation module through a bracket, the light condensation module comprises a plurality of light condensation units, each light condensation unit comprises a plurality of plane mirrors, and the plane mirrors are arranged in parallel to form an arc-shaped light condensation surface. Since the plane mirrors are used as the light condensation module, the cost can be saved. The defect of non-uniform heating of heat transfer fluid in the heat absorption pipe of the existing receiver can be overcome, and the improvement of the heat absorption efficiency can be facilitated.

Description

Technical field [0001] The invention relates to a solar heat collector and its concentrating unit, and particularly relates to a Fresnel solar heat collector and its concentrating unit. Background technique [0002] The Fresnel solar collector mainly includes a linear Fresnel reflector (Linear Fresnel Reflector, LFR) system and a receiver, the linear Fresnel reflector system includes a linear reflector field, the linear reflector field by It is composed of a plurality of reflectors arranged side by side, and these reflectors can be driven by a tracking device to track the movement of the sun. The sunlight reflected by these reflectors is concentrated into the receiver arranged above the reflectors, and the solar energy is converted into heat energy through the receiver. Generally, one receiver can be arranged between a plurality of reflectors to receive the sunlight reflected by the plurality of reflectors. This related prior art can be found in the PCT patent application with ...

Claims

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Application Information

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IPC IPC(8): F24J2/10F24J2/46F24J2/50F24S23/70
CPCY02E10/40
Inventor 项晓东任松林
Owner YIKEBO ENERGY TECH SHANGHAI