Fresnel focusing system

A technology of a concentrator and a receiving device, which is used in heating devices, solar thermal devices, installation and other directions, can solve the problem that the concentrating device occupies a large area, affects the cost and reliability, and the concentrating efficiency of the concentrating device is not high. Extinction, tolerance rate and occlusion rate

Inactive Publication Date: 2012-09-19
BEIJING TERASOLAR PHOTOTHERMAL TECH CO LTD
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Problems solved by technology

[0007] The purpose of the present invention is mainly to solve the following problems: 1. Serious problems of light extinction, tolerance rate and occlusion rate due to low concentrating efficiency of the concentrating device; 2. Inconvenient problem of overhaul and maintenance of the concentrating device; 3. Floor space of the concentrating device 4. Other issues affecting cost and reliability

Method used

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Embodiment Construction

[0036] Fig. 1 is a schematic diagram of the array arrangement of the Fresnel focusing device of the present invention. The conventional Fresnel reflector mirror field 2 can be set close to the base surface and arranged in a straight line along the horizontal direction. In order to obtain better performance, the arrangement of the gathering device is as follows Figure 1a As shown, the array of Fresnel concentrating devices is arranged by a plurality of Fresnel concentrating device unit arrays, such as 101, 102 and 103, and the overall structure 1 of each Fresnel concentrating device unit mainly includes reflective mirrors arranged in an elevated position The mirror field 2, the receiving device 3 and the maintenance and overhaul space 10; wherein the reflector mirror field 2 is composed of a plurality of reflector bars 4 arranged in parallel, and the plurality of reflector bars 4 are integrally in the reflector bar in the vertical section of the reflector mirror field The posi...

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Abstract

The invention discloses a Fresnel focusing system which comprises a reflector field, receivers and maintenance spaces, wherein the reflector field is composed of a row of parallelly arranged reflecting mirror stripes, the receivers are parallelly arranged above the reflecting mirror stripes, and the maintenance spaces are arranged at the bottom of the reflector field. By the aid of the Fresnel focusing system, severe problems including low focusing efficiency of extinction, tolerance rate, screen ratio, and inconvenience to overhaul and maintain are solved.

Description

technical field [0001] The invention relates to a solar energy concentrating device, in particular to a Fresnel concentrating device. Background technique [0002] As a kind of clean and environment-friendly energy, solar energy has been devoted to its development and utilization for a long time. Especially in recent years, due to the rising oil price, the improvement of environmental protection requirements, and the limitation of atmospheric carbon dioxide emissions, countries have made greater efforts to carry out research on solar energy utilization, especially how to obtain and utilize solar energy input more efficiently. more energy. [0003] Solar thermal power generation is one of the most economical means to achieve high-power power generation and replace conventional energy. The advantages and disadvantages of the three methods of solar thermal power generation are very obvious, such as: the tower type has high efficiency, but the one-time investment is large; the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B19/00G02B7/182G02B5/10F24J2/10F24J2/24F24J2/46H01L31/052F24S10/70F24S23/70F24S50/20
CPCG02B7/182F24J2002/108G02B19/0042F24J2/16G02B19/0023H01L31/052F24J2/46G02B19/00G02B19/0019G02B5/10F24J2/1047F24J2/10F24J2/07F24J2/24F24S23/80F24S20/20F24S2023/872F24S23/77F24S40/00Y02E10/40
Inventor 刘阳
Owner BEIJING TERASOLAR PHOTOTHERMAL TECH CO LTD
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