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Solar energy collection device for photo-thermal power generation

A technology for solar energy collection and photothermal power generation, which is applied to solar collectors, solar thermal devices, and solar collectors that use working fluids, and can solve problems such as low efficiency, large heat dissipation, and glass vacuum tubes bursting. The effect of ensuring the uniformity of temperature distribution, saving manufacturing costs and reducing transportation costs

Inactive Publication Date: 2011-08-17
NANJING SCIYON AUTOMATION GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the traditional design, trough and linear Fresnel mirror fields generally use coated glass, and the glass must also be curved, which increases the cost of solar power generation equipment and limits the development of solar thermal power generation
[0004] In addition, the current linear Fresnel power generation system generally has a large spot, so the collector is usually designed as a row of bare tubes with an outer insulation layer. The most obvious disadvantage of this method is that the heat dissipation is too large, which leads to the overall efficiency of the linear Fresnel power generation system. is not high, which is also the main disadvantage of the linear Fresnel system
However, the light spot of the trough power generation system is too small, which requires high tracking accuracy. In addition, due to the inherent optical path structure of the trough, the temperature in the radial direction of the glass vacuum tube is uneven. If the heat transfer medium is water, the two-phase region and The overheating zone is easy to cause the glass vacuum tube to burst

Method used

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  • Solar energy collection device for photo-thermal power generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 Shown is a structural schematic diagram of the solar energy collection device applied to the trough thermal power generation system of the present invention. The solar energy collection device of the present invention includes a steel structure frame 6 , an aluminum substrate 2 , a reflective film 1 , a secondary reflective frame 3 , a heat collector 5 and a support frame 7 . Among them, the reflective film 1 adopts multi-layer vacuum silver plating, and the reflective material is based on the world's most advanced PET total reflection technology, which has super strong reflective intensity, and the reflective rate is as high as 95%. The reflective film 1 is evenly pasted on the aluminum substrate 2, such as figure 2 Shown is a partial view of the reflective film pasted on the aluminum substrate after uncovering a corner; the aluminum substrate 2 is connected to the steel structure frame 6 through local superglue and other mechanical connections, and ...

Embodiment 2

[0023] Such as figure 2 Shown is a structural schematic diagram of the invention applied to the solar energy collection device of the linear Fresnel thermal power generation system. The device includes a steel structure frame 6 , an aluminum substrate, a reflective film 1 , a secondary reflective frame 3 , a heat collector and a support frame 7 . Among them, the aluminum base plate is a group of curved surfaces, which are installed on the same horizontal plane of the steel structure frame 6. There is an appropriate gap between each aluminum base plate, which is distributed in an array, and is connected to the steel structure through local superglue and other mechanical connections. Frame 6 connections. Among them, the reflective film 1 adopts multi-layer vacuum silver plating, and the reflective material is based on the world's most advanced PET total reflection technology, which has super strong reflective intensity, and the reflective rate is as high as 95%. The reflectiv...

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Abstract

The invention discloses a solar energy collection device for photo-thermal power generation. The device comprises a steel structural frame, a support frame, a heat collector, a light reflecting film and an aluminum base board, wherein the heat collector is supported above the steel structural frame through the support frame; the aluminum base board is connected with the steel structural frame; and the light reflecting film is attached to the aluminum base board. The solar energy collection device has low production cost and a good heat collecting effect.

Description

technical field [0001] The invention relates to a solar energy collection device, in particular to a solar energy collection device used in trough and linear Fresnel power generation systems. Background technique [0002] Solar energy is an inexhaustible renewable energy source. In today's severe energy situation, the development and utilization of solar energy is one of the important ways to realize the diversification of energy supply and ensure the security of energy supply. [0003] Among many solar thermal utilizations, the solar trough power generation system is currently the most mature and widely used technology. The linear Fresnel power generation system has attracted widespread attention because of its simple mechanism and large space for cost reduction. Regardless of the trough type or the linear Fresnel type, their mirror fields are composed of hundreds of rows of parabolic mirrors, and their cost accounts for a large proportion of the total investment of the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/00F24J2/48F24J2/50F24J2/52F24S10/40F24S10/70F24S23/70
CPCY02E10/47Y02E10/44
Inventor 王新刚江厚月刘进波
Owner NANJING SCIYON AUTOMATION GRP
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