Multi-curved trough solar heat collection system

A trough solar, multi-curved surface technology, applied in solar heating systems, solar collectors, solar thermal energy, etc., can solve the problems that restrict the development of trough line focusing systems, the difficulty of mass production of melting sealing technology, and the poor sealing strength. To the requirements and other issues, to achieve the effect of improving wind resistance, simple manufacturing process and high yield

Inactive Publication Date: 2017-10-17
新昌县景城新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The second is that for straight-through metal-glass vacuum heat collectors, the manufacturing process is difficult to control. The production of international online concentrated vacuum heat collectors is sealed by fusion sealing technology. The difficulty of this technology is: basically The quality of the product is determined by personal lighting experience. If the oxide layer on the metal surface is too thin, the strength of the fusion seal will not meet the requirements and it will be easy to unseal; if the oxide layer on the metal surface is too thick, although the seal strength has reached Requirements, but the airtightness may be poor, prone to air leakage
This is the reason why fusion sealing technology is difficult to form mass production, which restricts the development of grooved line focusing system

Method used

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Experimental program
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Effect test

Embodiment 1

[0026] A multi-curved trough solar heat collection system includes: torque support 1, rotating shaft 2, formwork holder 3, steel formwork 4, arc-shaped tempered glass reflector 5, ceramic sealing straight-through metal-glass vacuum heat collection tube 6, and the support rod 7 of the heat collecting element. Its characteristics are: the torque bracket 1 of the box-type truss structure is used to resist the torsion and bending caused by strong wind and gravity, the rotating shaft 2 is fixed at both ends of the torque bracket 1, and the template holder 3 is installed on both sides of the torque bracket 1. On both sides of the torque bracket 1, three pairs of steel templates 4 are installed through the fixture 3. On the three pairs of steel templates 4, arc-shaped tempered glass reflectors 5 with different radii of curvature are installed. The space of these reflectors is The positions are fitted on three confocal but different focal length parabolas to ensure that sunlight is re...

Embodiment 2

[0029] The structure of embodiment 2 is basically the same as embodiment 1, the difference is:

[0030]The ceramic sealed straight-through metal-glass vacuum heat collecting tube adopts the internal expansion type vacuum heat collecting tube. Engineering ceramics use silicon carbide ceramics.

Embodiment 3

[0032] The structure of embodiment 3 is basically the same as that of embodiment 1, the difference is that the concentrator part in the multi-curved trough solar heat collection system is a general component, and it can also replace the traditional parabolic concentrator, the difference is that in the concentrator On the focal line, straight-through metal-glass vacuum heat collectors are installed.

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Abstract

The invention discloses a groove type solar heat collecting system with multiple curved surfaces and belongs to novel solar photo-thermal power generation equipment. The groove type solar heat collecting system with the multiple curved surfaces has the wind unloading capacity, arc-shaped tempered glass reflective mirrors and a ceramic sealed straight-through type metal-glass vacuum heat collecting pipe are adopted. The groove type solar heat collecting system with the multiple curved surfaces is an improved scheme provided mainly for solving the problems of existing groove type solar condensers. The groove type solar heat collecting system with the multiple curved surfaces comprises a torque support, a rotary shaft, template fixing devices, steel templates, the arc-shaped tempered glass reflective mirrors, the ceramic sealed straight-through type metal-glass vacuum heat collecting pipe and a heat collecting element supporting rod piece. According to the system, a novel technique for fitting a paraboloid through curved surface and a method for producing the ceramic sealed straight-through type metal-glass vacuum heat collecting pipe through a ceramic metallization technique are adopted, the manufacturing difficulty of the groove type solar heat collecting system is lowered, and thus new breakthroughs are achieved in the aspects of cost control and commercialization techniques restraining the development of the groove type solar heat collecting system.

Description

technical field [0001] The invention relates to solar photothermal power generation equipment, in particular to a multi-curved trough solar heat collection system. Background technique [0002] At present, the main models of solar thermal power generation are: trough thermal power generation, tower thermal power generation, and butterfly power generation. As one of the important directions of solar thermal power generation, the trough solar thermal power generation device uses a trough concentrating mirror to focus the sunlight on the heat collecting tube, heat the heat exchange fluid in the heat collecting tube, and the heat exchange fluid in the tube A clean energy utilization device that heats water into superheated steam through a heat exchange system, and then uses the superheated steam to drive a turbogenerator to generate electricity. The trough solar heat collection system includes three parts: the concentrator, the heat collection tube, and the tracking mechanism. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/06F24J2/24F24S23/00F24S10/70
CPCY02E10/44
Inventor 吴艳频闵庆喜
Owner 新昌县景城新能源科技有限公司
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