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CN102798230A - Novel CPC secondary reflection device and fixing device thereof - Google Patents

Novel CPC secondary reflection device and fixing device thereof Download PDF

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Publication number
CN102798230A
CN102798230A CN2012102883255A CN201210288325A CN102798230A CN 102798230 A CN102798230 A CN 102798230A CN 2012102883255 A CN2012102883255 A CN 2012102883255A CN 201210288325 A CN201210288325 A CN 201210288325A CN 102798230 A CN102798230 A CN 102798230A
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secondary reflection
reflection device
support plate
novel
cpc
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CN102798230B (en
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许世森
郑建涛
徐越
刘冠杰
刘明义
徐海卫
裴杰
李启明
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Huaneng Clean Energy Research Institute
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/80Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

一种新型CPC二次反射装置及其固定装置,CPC二次反射装置为顶部中间开口的复合抛物面结构,采用镀银或镀铝的玻璃、镜面不锈钢、镜面铝或镀膜注塑类材料;其固定装置包括固定二次反射装置顶部中间开口的夹具,二次反射装置的侧面和下边缘由支撑板固定,支撑板内表面形状和二次反射装置外表面形状相适配,侧面下部开有下凹角以使二次反射装置下边缘插入下凹角中固定,在二次反射装置支撑板的外部两端设置有用来支撑二次反射装置支撑板的槽钢;避免了集热管玻璃外管和二次复合抛物面反射装置的碰撞和接触,既保留了二次复合抛物面反射装置的主要部分面积的反射功能,又保证了二次反射聚光的效果和光-热转换效率。

Figure 201210288325

A new type of CPC secondary reflection device and its fixing device. The CPC secondary reflection device is a compound paraboloid structure with an opening in the middle of the top, and adopts silver-plated or aluminum-plated glass, mirror stainless steel, mirror aluminum or coated injection molding materials; its fixing device It includes a fixture for fixing the opening in the middle of the top of the secondary reflection device. The side and lower edge of the secondary reflection device are fixed by a support plate. The shape of the inner surface of the support plate matches the shape of the outer surface of the secondary reflection device. The lower edge of the secondary reflection device is inserted into the lower concave corner and fixed, and channel steel for supporting the support plate of the secondary reflection device is arranged at both ends of the support plate of the secondary reflection device; the glass outer tube of the heat collecting tube and the secondary compound paraboloid are avoided The collision and contact of the reflector not only retains the reflective function of the main area of the secondary compound parabolic reflector, but also ensures the effect of secondary reflective concentrating and light-to-heat conversion efficiency.

Figure 201210288325

Description

一种新型CPC二次反射装置及其固定装置A new type of CPC secondary reflection device and its fixing device

技术领域 technical field

本发明涉及太阳能利用技术领域,具体涉及一种新型CPC二次反射装置及其固定装置。The invention relates to the technical field of solar energy utilization, in particular to a novel CPC secondary reflection device and its fixing device.

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。线聚焦太阳能集热管和二次反射板是太阳能热发电关键部件之一,可极大地提高太阳能聚光比和光-热转换效率。需要进行重点研究和关注。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. Line-focusing solar collector tubes and secondary reflectors are one of the key components of solar thermal power generation, which can greatly improve the solar concentration ratio and light-to-heat conversion efficiency. Focused research and attention is required.

目前的玻璃-金属真空集热管一般仅用在槽式太阳能热发电技术中,其通过抛物面反射镜将太阳能光线聚焦到集热管上,没有设置二次反射装置。对于菲涅尔太阳能反射装置,为降低聚焦难度,同时增加聚光比和聚光效率,需要设置有二次反射装置,但采用何种形式及如何装配,成为技术难点。如果使用没有玻璃的镀膜钢管,其热损失较大。若使用玻璃-金属真空集热管,既要保证二次反射镜面的准确形状,又要便于装配,提高设备运行的可靠性。否则会使集热管产生损坏,或聚光效果差,影响设备正常和高效运行。The current glass-metal vacuum heat collecting tubes are generally only used in trough solar thermal power generation technology, which focuses solar light onto the heat collecting tubes through parabolic reflectors, without a secondary reflection device. For the Fresnel solar reflector, in order to reduce the difficulty of focusing and increase the light concentration ratio and light concentration efficiency at the same time, it is necessary to install a secondary reflector, but what form and how to assemble it has become a technical difficulty. If coated steel pipe without glass is used, the heat loss will be greater. If glass-metal vacuum heat collecting tubes are used, it is necessary to ensure the accurate shape of the secondary reflection mirror and facilitate assembly to improve the reliability of equipment operation. Otherwise, the heat collecting tube will be damaged, or the light concentrating effect will be poor, which will affect the normal and efficient operation of the equipment.

发明内容 Contents of the invention

为解决上述现有技术中存在的问题,本发明的目的在于提供一种新型CPC二次反射装置及其固定装置,避免了集热管玻璃外管和二次复合抛物面反射装置的碰撞和接触,既保留了二次复合抛物面反射装置的主要部分和面积的反射功能,又保证了二次反射聚光的效果和光-热转换效率。In order to solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide a novel CPC secondary reflection device and its fixing device, which avoids the collision and contact of the heat collector tube glass outer tube and the secondary compound parabolic reflection device, both The reflective function of the main part and area of the secondary compound parabolic reflector is retained, and the effect of secondary reflective concentrating light and light-to-heat conversion efficiency are guaranteed.

为达到上述目的,本发明所采用的技术方案是:In order to achieve the above object, the technical scheme adopted in the present invention is:

一种新型CPC二次反射装置,所述二次反射装置3为顶部中间开口的复合抛物面结构。A novel CPC secondary reflection device, the secondary reflection device 3 is a compound paraboloid structure with an opening in the middle of the top.

所述二次反射装置3采用镀银或镀铝的玻璃、镜面不锈钢、镜面铝或镀膜注塑类材料。The secondary reflection device 3 is made of silver-plated or aluminum-plated glass, mirror stainless steel, mirror aluminum or coated injection molding materials.

一种新型CPC二次反射装置的固定装置,包括固定二次反射装置3、顶部中间开口的二次反射装置夹具6,二次反射装置3的侧面和下边缘由二次反射装置支撑板4固定,所述二次反射装置支撑板4的内表面的形状和二次反射装置3的外表面形状相适配,侧面下部开有下凹角以使二次反射装置3的下边缘插入下凹角中固定,在二次反射装置支撑板4的外部两端设置有用来支撑二次反射装置支撑板4的槽钢5,管座1固定到两端的槽钢5上。A fixing device for a new type of CPC secondary reflection device, including a fixed secondary reflection device 3, a secondary reflection device fixture 6 with an opening in the middle of the top, and the side and lower edge of the secondary reflection device 3 are fixed by a secondary reflection device support plate 4 The shape of the inner surface of the secondary reflection device support plate 4 is adapted to the shape of the outer surface of the secondary reflection device 3, and the lower part of the side has a concave angle so that the lower edge of the secondary reflection device 3 is inserted into the concave angle and fixed , the two outer ends of the support plate 4 of the secondary reflection device are provided with channel steel 5 for supporting the support plate 4 of the secondary reflection device, and the pipe base 1 is fixed to the channel steel 5 at both ends.

因为集热管的金属内管需要位于二次复合抛物面的焦点位置,故真空集热管的外玻璃层会接触或阻碍上标准的复合抛物面,为使集热管和二次反射装置能够顺利装配,并在运行中不至碰碎破损。本发明在二次反射装置顶部中间开口,避免了集热管玻璃外管和二次复合抛物面反射装置的碰撞和接触,既保留了二次复合抛物面反射装置的主要部分和面积的反射功能,又保证了二次反射聚光的效果和光-热转换效率。Because the metal inner tube of the heat collecting tube needs to be located at the focal point of the secondary compound paraboloid, the outer glass layer of the vacuum heat collecting tube will contact or hinder the standard compound paraboloid. It will not be broken or damaged during operation. The invention opens in the middle of the top of the secondary reflector, avoiding the collision and contact between the glass outer tube of the heat collecting tube and the secondary compound parabolic reflector, not only retaining the reflection function of the main part and area of the secondary compound parabolic reflector, but also ensuring The effect of secondary reflection and concentrating light and the light-to-heat conversion efficiency are studied.

附图说明 Description of drawings

附图为本发明新型CPC二次反射装置及其固定装置的结构示意图。Accompanying drawing is the structure diagram of the novel CPC secondary reflection device and its fixing 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发明作进一步详细说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

如附图所示,本发明一种新型CPC二次反射装置,所述二次反射装置3为顶部中间开口的复合抛物面结构。所述二次反射装置3采用镀银或镀铝的玻璃、镜面不锈钢、镜面铝或镀膜注塑类材料。As shown in the drawings, the present invention is a novel CPC secondary reflection device, and the secondary reflection device 3 is a compound paraboloid structure with an opening in the middle of the top. The secondary reflection device 3 is made of silver-plated or aluminum-plated glass, mirror stainless steel, mirror aluminum or coated injection molding materials.

如附图所示,本发明一种新型CPC二次反射装置的固定装置,包括固定二次反射装置3、顶部中间开口的二次反射装置夹具6,二次反射装置3的侧面和下边缘由二次反射装置支撑板4固定,所述二次反射装置支撑板4的内表面的形状和二次反射装置3的外表面形状相适配,侧面下部开有下凹角以使二次反射装置3的下边缘插入下凹角中固定,在二次反射装置支撑板4的外部两端设置有用来支撑二次反射装置支撑板4的槽钢5,管座1固定到两端的槽钢5上,玻璃-金属真空集热管的金属内管2-1支撑在管座1上,玻璃-金属真空集热管的玻璃外管2-2的上边缘和二次反射装置夹具6间留有一定的安全距离。As shown in the accompanying drawing, the fixing device of a kind of novel CPC secondary reflection device of the present invention comprises the secondary reflection device fixture 6 of fixed secondary reflection device 3, top middle opening, and the side and lower edge of secondary reflection device 3 are made of Secondary reflection device support plate 4 is fixed, and the shape of the inner surface of described secondary reflection device support plate 4 is adapted to the outer surface shape of secondary reflection device 3, and the lower part of the side has a concave angle so that secondary reflection device 3 The lower edge of the lower edge is inserted into the lower concave corner to fix, and channel steel 5 for supporting the support plate 4 of the secondary reflection device is arranged at both ends outside the support plate 4 of the secondary reflection device, and the tube base 1 is fixed on the channel steel 5 at both ends, and the glass - The metal inner tube 2-1 of the metal vacuum heat collecting tube is supported on the tube base 1, and a certain safety distance is left between the upper edge of the glass outer tube 2-2 of the glass-metal vacuum heat collecting tube and the fixture 6 of the secondary reflection device.

Claims (3)

1. novel C PC secondary reflection device, it is characterized in that: said secondary reflection device (3) is the composite paraboloid structure of crown center opening.
2. according to right 1 described novel C PC secondary reflection device, it is characterized in that: said secondary reflection device (3) adopts glass, mirror face stainless steel, specular aluminium or plated film injection moulding class material silver-plated or that aluminize.
3. the fixture of the said novel C PC secondary reflection of claim 1 device; It is characterized in that: comprise the fixedly secondary reflection device anchor clamps (6) of secondary reflection device (3), crown center opening; The side of secondary reflection device (3) and lower limb are fixing by secondary reflection device gripper shoe (4); The external surface shape of the shape of the inner surface of said secondary reflection device gripper shoe (4) and secondary reflection device (3) is suitable; The bottom, side has down re-entrant angle so that the lower limb insertion of secondary reflection device (3) is fixed in the re-entrant angle down; Be provided with the channel-section steel (5) that is used for supporting secondary reflection device gripper shoe (4) at the outside two ends of secondary reflection device gripper shoe (4), base (1) is fixed on the channel-section steel (5) at two ends.
CN201210288325.5A 2012-08-14 2012-08-14 Novel CPC secondary reflection device and fixing device thereof Active CN102798230B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758014A (en) * 2016-04-27 2016-07-13 中国华能集团清洁能源技术研究院有限公司 Heat absorber of linear Fresnel heat-collecting system

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JP2002228271A (en) * 2001-02-05 2002-08-14 Exedy Corp Reflection surface member for solar heat collecting device and its manufacturing method
CN101315437A (en) * 2007-08-17 2008-12-03 康雪慧 Reflection mirror and solar groove type heat collector adopting the same
CN201497202U (en) * 2009-09-07 2010-06-02 东南大学 Solar trough type light concentration and heat collection device
CN101937934A (en) * 2010-09-19 2011-01-05 华中科技大学 Solar cells based on secondary reflection and concentration
CN102155797A (en) * 2011-02-18 2011-08-17 南京科远自动化集团股份有限公司 Solar energy collection device for photo-thermal power generation
CN102590910A (en) * 2012-03-07 2012-07-18 中国华能集团清洁能源技术研究院有限公司 Compound parabolic secondary reflector for solar thermal electricity generation and preparation method thereof
CN202885289U (en) * 2012-08-14 2013-04-17 中国华能集团清洁能源技术研究院有限公司 Center potion control (CPC) secondary reflection device with opening in top portion and fixing device thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228271A (en) * 2001-02-05 2002-08-14 Exedy Corp Reflection surface member for solar heat collecting device and its manufacturing method
CN101315437A (en) * 2007-08-17 2008-12-03 康雪慧 Reflection mirror and solar groove type heat collector adopting the same
CN201497202U (en) * 2009-09-07 2010-06-02 东南大学 Solar trough type light concentration and heat collection device
CN101937934A (en) * 2010-09-19 2011-01-05 华中科技大学 Solar cells based on secondary reflection and concentration
CN102155797A (en) * 2011-02-18 2011-08-17 南京科远自动化集团股份有限公司 Solar energy collection device for photo-thermal power generation
CN102590910A (en) * 2012-03-07 2012-07-18 中国华能集团清洁能源技术研究院有限公司 Compound parabolic secondary reflector for solar thermal electricity generation and preparation method thereof
CN202885289U (en) * 2012-08-14 2013-04-17 中国华能集团清洁能源技术研究院有限公司 Center potion control (CPC) secondary reflection device with opening in top portion and fixing device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758014A (en) * 2016-04-27 2016-07-13 中国华能集团清洁能源技术研究院有限公司 Heat absorber of linear Fresnel heat-collecting system
CN105758014B (en) * 2016-04-27 2018-12-25 中国华能集团清洁能源技术研究院有限公司 A kind of heat dump of linear Fresnel collecting system

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