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Wall-hanging-type heat collector adopting half-edge compound parabolic concentrating devices

A compound paraboloid and concentrating device technology, which is applied in the field of solar energy concentrating and heat collecting, can solve the problems of high requirements for fixing devices, low utilization rate of solar energy, low heat collecting temperature, etc. high temperature effect

Inactive Publication Date: 2010-09-22
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also some shortcomings: high cost, low solar energy utilization rate, low heat collection temperature, high requirements for fixing devices, etc.

Method used

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  • Wall-hanging-type heat collector adopting half-edge compound parabolic concentrating devices
  • Wall-hanging-type heat collector adopting half-edge compound parabolic concentrating devices
  • Wall-hanging-type heat collector adopting half-edge compound parabolic concentrating devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The device contains four half-sided compound paraboloid concentrating devices 1, and the receiving half angle of the compound paraboloid is 30°. Half compound parabolic reflector 1-2 adopts aluminum plate. The glass vacuum heat collecting tube 1-1 is a straight-through vacuum heat collecting tube. The glass plate 2 is made of high borosilicate glass 3.3 with good light transmission performance. External frame 3 adopts corrosion-resistant, light organic plastics. The plane formed by multiple half-side compound parabolic concentrating devices 1 and the glass plate 2 are placed vertically.

Embodiment 2

[0035] The device contains four half-sided compound paraboloid concentrating devices 1, and the receiving half angle of the compound paraboloid is 30°. Half compound parabolic reflector 1-2 adopts aluminum plate. The glass vacuum heat collecting tube 1-1 is a straight-through vacuum heat collecting tube. The glass plate 2 is made of high borosilicate glass 3.3 with good light transmission performance. External frame 3 adopts corrosion-resistant, light organic plastics. The plane and the glass plate 2 formed by multiple half-side compound paraboloid light concentrating devices 1 are placed on the basis of the vertical direction and rotated 15° to the north.

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Abstract

The invention relates to a wall-hanging-type heat collector adopting half-edge compound parabolic concentrating devices. The wall-hanging-type heat collector comprises a flat glass plate (2), an outer frame (3) and a plurality of half-edge compound parabolic concentrating devices (1), wherein the flat glass plate (2) with a south-facing surface is vertically arranged and connected with the outer frame (3), the half-edge compound parabolic concentrating devices (1) are vertically distributed in the east-west direction, arranged in a space enclosed by the flat glass plate (2) and the outer frame (3) and fixed on the outer frame (3), and each half-edge compound parabolic concentrating device (1) comprises a half-edge compound parabolic reflecting plate (1-2) and a glass vacuum heat-collecting tube (1-1) which is arranged at the lower end of the half-edge compound parabolic reflecting plate (1-2). The wall-hanging-type heat collector has attractive appearance, convenient mounting, low cost, high solar energy utilization rate and heat-collecting temperature.

Description

technical field [0001] The invention relates to a solar energy concentrating and heat collecting device, in particular to a non-tracking light concentrating and heat collecting device, which belongs to the technical field of solar energy concentrating and heat collecting. Background technique [0002] As a clean, non-polluting renewable energy source, solar energy is considered an important part of the world's energy strategy for its development and utilization. [0003] Compound parabolic concentrator (CPC for short) is a non-imaging concentrator designed according to the principle of edge optics. In theory, the incident light within the acceptance angle range will reach the receiver directly or after reflection. For a given acceptance angle range, it can achieve the maximum concentration ratio, so it is applied in solar thermal and photovoltaic systems. In non-tracking, tracking (secondary reflector) systems. The establishment and development of the CPC model began in th...

Claims

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Application Information

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IPC IPC(8): F24J2/12F24J2/46F24S23/71
CPCY02E10/42Y02E10/40
Inventor 余雷王军张耀明
Owner SOUTHEAST UNIV
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