CN202885290U - Solar secondary reflective surface of composite paraboloid structure and support device thereof - Google Patents
Solar secondary reflective surface of composite paraboloid structure and support device thereof Download PDFInfo
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- CN202885290U CN202885290U CN2012204027103U CN201220402710U CN202885290U CN 202885290 U CN202885290 U CN 202885290U CN 2012204027103 U CN2012204027103 U CN 2012204027103U CN 201220402710 U CN201220402710 U CN 201220402710U CN 202885290 U CN202885290 U CN 202885290U
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- 239000002131 composite material Substances 0.000 title claims description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000012778 molding material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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Abstract
一种复合抛物面结构的太阳能二次反射面及其支撑装置，所述二次反射面为复合抛物面结构，复合抛物面结构为顶部的渐开线和侧面的抛物面相组合，渐开线的展角比标准渐开线的展角大1°～2°；其支撑装置，包括固定在二次反射面上部的和其形状相适配的支撑复合抛物面板，固定在支撑复合抛物面板外部两边侧面的支撑侧面板，固定在支撑侧面板外部的二次反射外部包围板，形成全包围结构，支撑上部板固定在支撑侧面板和二次反射外部包围板的顶部；能够避免集热管玻璃外管和二次反射面发生碰撞和接触，避免反射面损失，保证了二次反射面的聚光反射功能，从而提高光-热转换效率，同时该装置制造、安装简单，并可准确成型，效果显著。
A solar secondary reflector with compound paraboloid structure and its supporting device, the secondary reflector is a compound paraboloid structure, the compound paraboloid structure is a combination of an involute at the top and a parabola at the side, and the spread angle ratio of the involute is The spread angle of the standard involute is 1° to 2° larger; its supporting device includes a supporting compound parabolic panel fixed on the top of the secondary reflector and matching its shape, and fixed on the supports on both sides of the outer side of the supporting compound parabolic panel The side panel, the secondary reflective outer surrounding plate fixed on the outside of the supporting side panel, forms a full surrounding structure, the supporting upper plate is fixed on the top of the supporting side panel and the secondary reflecting external surrounding plate; it can avoid the glass outer tube of the heat collecting tube and the secondary The collision and contact of the reflective surface avoids the loss of the reflective surface, ensures the light-gathering reflection function of the secondary reflective surface, thereby improving the light-to-heat conversion efficiency, and at the same time, the device is simple to manufacture and install, and can be accurately formed, with remarkable effects.
Description
技术领域 technical field
本实用新型涉及太阳能利用技术领域，具体涉及一种复合抛物面结构的太阳能二次反射面及其支撑装置。The utility model relates to the technical field of solar energy utilization, in particular to a solar secondary reflective surface with a compound paraboloid structure and a supporting device thereof.
背景技术 Background technique
我国的能源资源储量不容乐观，人均资源并不丰富。许多地方，缺乏常规能源资源，但太阳能资源丰富。为提高太阳能热发电效率，需要提高太阳能热发电各组件、部件的性能及热转化效率。线聚焦二次反射装置是可极大地提高太阳能聚光比和光-热转换效率。对于太阳能热发电用的二次反射面中的复合抛物面形状和固定结构，国、内外研究较少，需要进行重点研究和发展。my country's energy resource reserves are not optimistic, and per capita resources are not rich. In many places, conventional energy resources are lacking, but solar energy resources are abundant. In order to improve the efficiency of solar thermal power generation, it is necessary to improve the performance and heat conversion efficiency of each component and part of solar thermal power generation. The line-focusing secondary reflection device can greatly improve the solar concentration ratio and light-to-heat conversion efficiency. For the compound paraboloid shape and fixed structure in the secondary reflector used for solar thermal power generation, there are few domestic and foreign studies, and key research and development are needed.
目前为提高线聚焦太阳能热发电温度，一般采用玻璃-金属真空集热管，如此，例如像菲涅尔太阳能热发电技术必须采用二次反射装置，将一次反射装置的反射光进行二次聚焦，才能最大化的利用太阳辐射能量。只有集热管的金属内管位于二次反射镜面的焦点处，才能最大化的吸收太阳辐射能量，但玻璃-金属真空集热管一般的外玻璃管比金属内管半径要大的多，外玻璃管将会接触到标准的二次反射装置上，不便制造和安装。一般采取缩小玻璃-金属真空集热管半径的办法，来解决此类问题。At present, in order to increase the temperature of line-focused solar thermal power generation, glass-metal vacuum heat collectors are generally used. In this way, for example, Fresnel solar thermal power generation technology must use a secondary reflection device to refocus the reflected light of the primary reflection device. Maximize the use of solar radiation energy. Only when the metal inner tube of the heat collector tube is located at the focus of the secondary reflector can it absorb solar radiation energy to the maximum extent, but the outer glass tube of the glass-metal vacuum heat collector tube is much larger in radius than the metal inner tube, and the outer glass tube Will come into contact with standard secondary reflectors, making it inconvenient to manufacture and install. Generally, the method of reducing the radius of the glass-metal vacuum heat collecting tube is adopted to solve such problems.
实用新型内容 Utility model content
为解决上述现有技术中存在的问题，本实用新型的目的在于提供一种复合抛物面结构的太阳能二次反射面及其支撑装置，本实用新型二次反射面形状能够避免集热管玻璃外管和二次反射面发生碰撞和接触，避免反射面损失，保证了二次反射面的聚光反射功能，从而提高光-热转换效率。In order to solve the above-mentioned problems in the prior art, the purpose of this utility model is to provide a solar secondary reflector with a compound paraboloid structure and its supporting device. The shape of the secondary reflector of the utility model can avoid the glass outer tube and the The collision and contact of the secondary reflective surface avoids the loss of the reflective surface, ensures the light-gathering and reflecting function of the secondary reflective surface, thereby improving the light-to-heat conversion efficiency.
为达到上述目的，本实用新型所采用的技术方案是：In order to achieve the above object, the technical solution adopted in the utility model is:
一种复合抛物面结构的太阳能二次反射面，所述二次反射面2-1为复合抛物面结构，所述复合抛物面结构为顶部的渐开线和侧面的抛物面相组合，所述渐开线的展角比标准渐开线的展角大1°～2°。A secondary reflective surface for solar energy with a compound paraboloid structure, the secondary reflector 2-1 is a compound paraboloid structure, the compound paraboloid structure is a combination of an involute at the top and a parabola at the side, and the involute The spread angle is 1°-2° larger than that of the standard involute.
所述二次反射面2-1采用镜面不锈钢或镜面铝或镀膜注塑类易弯曲成型材料。The secondary reflection surface 2-1 is made of mirror-finished stainless steel or mirror-finished aluminum or coated injection-molded flexible molding materials.
一种复合抛物面结构的太阳能二次反射面的支撑装置，包括固定在二次反射面2-1上部的和其形状相适配的支撑复合抛物面板1-2，固定在支撑复合抛物面板1-2外部两边侧面的支撑侧面板1-3，固定在支撑侧面板1-3外部的二次反射外部包围板2-2，支撑复合抛物面板1-2、支撑侧面板1-3与二次反射外部包围板2-2对二次反射面2-1形成全包围结构，支撑上部板1-1固定在支撑侧面板1-3和二次反射外部包围板2-2的顶部。A support device for a solar secondary reflector with a compound parabolic structure, comprising a supporting compound parabolic panel 1-2 fixed on the upper part of the secondary reflecting surface 2-1 and matching its shape, and fixed on the supporting compound parabolic panel 1-2 2 The supporting side panels 1-3 on both sides of the outside, the secondary reflection external enclosure panel 2-2 fixed on the outside of the supporting side panel 1-3, the supporting composite parabolic panel 1-2, the supporting side panel 1-3 and the secondary reflection The outer surrounding board 2-2 forms an all-enclosing structure for the secondary reflection surface 2-1, and the supporting upper board 1-1 is fixed on the top of the supporting side board 1-3 and the secondary reflecting outer surrounding board 2-2.
所述支撑复合抛物面板1-2和二次反射外部包围板2-2采用螺钉3固定在支撑侧面板1-3的内部和外部。The supporting composite parabolic panel 1-2 and the secondary reflection outer surrounding panel 2-2 are fixed on the inside and outside of the supporting side panel 1-3 with
本实用新型二次反射面2-1为顶部的渐开线和侧面的抛物面相组合的复合抛物面结构，且渐开线的展角比标准渐开线的展角大1°～2°，使聚光焦点抬高，这样的设计增加了二次反射面2-1顶部渐开线部分和集热管玻璃外管间的空隙尺寸，不会使集热管玻璃外管和二次反射面2-1发生碰撞和接触，避免反射面损失。保证了二次反射面的聚光反射功能，从而提高光-热转换效率。同时该装置制造、安装简单，并可准确成型，效果显著。The secondary reflection surface 2-1 of the utility model is a compound paraboloid structure in which the involute on the top and the parabola on the side are combined, and the spread angle of the involute is 1°-2° larger than that of the standard involute, so that The focal point of the light is raised, and this design increases the gap size between the involute part at the top of the secondary reflector 2-1 and the glass outer tube of the heat collecting tube, which will not make the glass outer tube of the heat collecting tube and the secondary reflective surface 2-1 Collisions and contacts occur, avoiding loss of reflective surfaces. The light-gathering reflection function of the secondary reflection surface is guaranteed, thereby improving the light-to-heat conversion efficiency. Simultaneously, the device is simple to manufacture and install, can be formed accurately, and has remarkable effects.
附图说明Description of drawings
附图为本实用新型二次反射面及其支撑装置的结构示意图。The accompanying drawing is a structural schematic diagram of the secondary reflection surface and its supporting device of the present invention.
具体实施方式 Detailed ways
下面结合附图和具体实施方式对本实用新型作进一步详细说明。The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
如附图所示，本实用新型一种复合抛物面结构的太阳能二次反射面，所述二次反射面2-1为复合抛物面结构，所述复合抛物面结构为顶部的渐开线和侧面的抛物面相组合，所述渐开线的展角比标准渐开线的展角大1°～2°。As shown in the accompanying drawings, the utility model is a solar energy secondary reflecting surface with a composite paraboloid structure, the secondary reflecting surface 2-1 is a composite paraboloid structure, and the composite paraboloid structure is an involute at the top and a paraboloid at the side In combination, the spread angle of the involute is 1°-2° larger than the spread angle of the standard involute.
所述二次反射面2-1采用镜面不锈钢或镜面铝或镀膜注塑类易弯曲成型材料。The secondary reflection surface 2-1 is made of mirror-finished stainless steel or mirror-finished aluminum or coated injection-molded flexible molding materials.
如附图所示，本实用新型一种复合抛物面结构的太阳能二次反射面的支撑装置，包括固定在二次反射面2-1上部的和其形状相适配的支撑复合抛物面板1-2，固定在支撑复合抛物面板1-2外部两边侧面的支撑侧面板1-3，固定在支撑侧面板1-3外部的二次反射外部包围板2-2，支撑复合抛物面板1-2、支撑侧面板1-3与二次反射外部包围板2-2对二次反射面2-1形成全包围结构，支撑上部板1-1固定在支撑侧面板1-3和二次反射外部包围板2-2的顶部。As shown in the accompanying drawings, the utility model is a support device for a solar energy secondary reflector with a composite parabolic structure, including a supporting composite parabolic panel 1-2 fixed on the upper part of the secondary reflector 2-1 and matching its shape , the supporting side panels 1-3 fixed on the outside sides of the supporting composite parabolic panel 1-2, the secondary reflection external surrounding board 2-2 fixed on the supporting side panel 1-3, supporting the composite parabolic panel 1-2, supporting The side panel 1-3 and the secondary reflection outer enclosure plate 2-2 form a full enclosure structure for the secondary reflection surface 2-1, and the support upper plate 1-1 is fixed on the support side panel 1-3 and the secondary reflection outer enclosure panel 2 Top of -2.
所述支撑复合抛物面板1-2和二次反射外部包围板2-2采用焊接或其他连接方式被螺钉3固定在支撑侧面板1-3的内部和外部，本实施例采用螺钉3固定。The supporting composite parabolic panel 1-2 and the secondary reflective outer surrounding plate 2-2 are fixed on the inside and outside of the supporting side panel 1-3 by
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012204027103U CN202885290U (en) | 2012-08-14 | 2012-08-14 | Solar secondary reflective surface of composite paraboloid structure and support device thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798231A (en) * | 2012-08-14 | 2012-11-28 | 中国华能集团清洁能源技术研究院有限公司 | Novel solar secondary reflecting surface and supporting device thereof |
| CN104964464A (en) * | 2015-07-14 | 2015-10-07 | 中国华能集团清洁能源技术研究院有限公司 | Heat absorber for line-focus heat power generation |
| CN106016779A (en) * | 2016-07-25 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Linear Fresnel heat absorber structure for secondary light condensation |
-
2012
- 2012-08-14 CN CN2012204027103U patent/CN202885290U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798231A (en) * | 2012-08-14 | 2012-11-28 | 中国华能集团清洁能源技术研究院有限公司 | Novel solar secondary reflecting surface and supporting device thereof |
| CN104964464A (en) * | 2015-07-14 | 2015-10-07 | 中国华能集团清洁能源技术研究院有限公司 | Heat absorber for line-focus heat power generation |
| CN106016779A (en) * | 2016-07-25 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Linear Fresnel heat absorber structure for secondary light condensation |
| CN106016779B (en) * | 2016-07-25 | 2018-03-06 | 中国华能集团清洁能源技术研究院有限公司 | A kind of linear Fresnel heat dump structure of secondary condensation |
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Effective date of registration: 20140516 Address after: 100098 Beijing city Haidian District No. 48 Zhichun Road Yingdu building A block 26 layer Patentee after: HUANENG CLEAN ENERGY Research Institute Patentee after: TECHNOLOGY INNOVATION CENTER OF CHINA HUANENG Group Address before: 100098 Beijing city Haidian District No. 48 Zhichun Road Yingdu building A block 26 layer Patentee before: HUANENG CLEAN ENERGY Research Institute |
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