CN104090346A - Line focusing reflection support based on space truss structure - Google Patents
Line focusing reflection support based on space truss structure Download PDFInfo
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- CN104090346A CN104090346A CN201410266015.2A CN201410266015A CN104090346A CN 104090346 A CN104090346 A CN 104090346A CN 201410266015 A CN201410266015 A CN 201410266015A CN 104090346 A CN104090346 A CN 104090346A
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
基于空间桁架结构的线聚焦反射支架，包括与追踪系统相连的主轴，主轴为空间三角桁架结构，主轴两侧等间隔对称伸出两臂，两臂都为平面三角桁架结构，两臂的上横梁与反射镜直接连接用于支撑反射镜并使其保持所需的弧形。本发明基于机械冷变形的原理，利用本发明的支架装置来调节平面镜的弧度，可以快速低成本地制备微弧镜面，和现有热弯加工弧面镜技术相比，由于可以直接使用普通平面镜，因此加工成本大幅降低，而且对于微弧镜而言，也大大降低了加工工艺的复杂程度并提高了反射镜弧形的精确度，因此可以大幅提高线聚焦反射镜的聚光效率，降低系统的安装调试成本。
The line-focusing reflection support based on the space truss structure includes the main shaft connected to the tracking system. The main shaft is a space triangular truss structure. Two arms are symmetrically extended at equal intervals on both sides of the main shaft. Both arms are planar triangular truss structures. The upper beams of the two arms A direct connection to the mirror is used to support the mirror and keep it in the desired arc. The present invention is based on the principle of mechanical cold deformation, and uses the bracket device of the present invention to adjust the radian of the plane mirror, so that the micro-arc mirror surface can be prepared quickly and at low cost. , so the processing cost is greatly reduced, and for the micro-arc mirror, it also greatly reduces the complexity of the processing technology and improves the accuracy of the arc of the mirror, so the light-gathering efficiency of the line-focus mirror can be greatly improved, and the system can be reduced. installation and commissioning costs.
Description
技术领域technical field
本发明属于太阳能光热发电技术领域，特别涉及基于空间桁架结构的线聚焦反射支架。The invention belongs to the technical field of solar thermal power generation, and in particular relates to a line-focusing reflection support based on a space truss structure.
背景技术Background technique
太阳能热发电技术是通过聚光器将太阳能聚集起来转化为热能，然后产生高温高压蒸汽驱动汽轮机发电。Solar thermal power generation technology uses concentrators to gather solar energy and convert it into heat energy, and then generate high-temperature and high-pressure steam to drive steam turbines to generate electricity.
线聚焦太阳能聚光热发电技术是目前太阳能热发电的一种常见的形式，通过多面反射镜构成的镜场将太阳能会聚成线状光斑，然后利用接收器将光能转化为热能，通过导热流体将热能吸收并传递到换热器。在换热器中导热流体的热量被用于加热水生成水蒸气，进而利用水蒸气驱动汽轮机做功发电。Line-focusing solar concentrating thermal power generation technology is a common form of solar thermal power generation at present. The mirror field composed of multi-faceted mirrors gathers the solar energy into a linear spot, and then uses the receiver to convert the light energy into heat energy. Heat energy is absorbed and transferred to the heat exchanger. In the heat exchanger, the heat of the heat transfer fluid is used to heat the water to generate water vapor, and then use the water vapor to drive the steam turbine to generate power.
在整个线聚焦太阳能热发电装置中，聚光镜场是最为关键的组件。镜场聚光效率直接关系到最终光能到电能的转化效率。由于太阳能热发电技术中对于聚光比的要求以及接收器宽度有限，因此对线状光斑的宽度提出了一定的要求。为了得到宽度较窄的聚焦光斑，一种解决方法是使用带有弧度的反射镜来代替平面镜，但是由于微弧反射镜的加工精度难以保证，因而造成聚光效果削弱以及加工成本的上升。In the entire line-focusing solar thermal power generation device, the concentrator field is the most critical component. The light-gathering efficiency of the mirror field is directly related to the conversion efficiency of the final light energy to electrical energy. Due to the requirements for the light concentration ratio and the limited width of the receiver in solar thermal power generation technology, certain requirements are put forward for the width of the linear spot. In order to obtain a focused spot with a narrow width, one solution is to use a curved reflector instead of a flat mirror, but since the processing accuracy of the micro-arc reflector is difficult to guarantee, the focusing effect will be weakened and the processing cost will increase.
发明内容Contents of the invention
为了克服上述现有技术的缺点，本发明的目的在于提供基于空间桁架结构的线聚焦反射支架，解决了微弧反射镜加工难度大成本高的问题，而且大幅度降低了反射支架的自重，有效降低了其制造成本。In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a line-focusing reflective support based on a space truss structure, which solves the problem of high difficulty in processing the micro-arc reflector, and greatly reduces the self-weight of the reflective support, effectively Reduce its manufacturing cost.
为了解决上述技术问题，本发明采用的技术方案是：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
基于空间桁架结构的线聚焦反射支架，包括与追踪系统相连的主轴1，所述主轴1两侧等间隔对称伸出两支撑臂2，支撑臂2的上横梁3顶面与反射镜4直接连接。A line-focusing reflective support based on a space truss structure, including a main shaft 1 connected to the tracking system, two support arms 2 are symmetrically extended at equal intervals on both sides of the main shaft 1, and the top surface of the upper beam 3 of the support arm 2 is directly connected to the reflector 4 .
所述主轴1为空间三角桁架结构，与支撑臂2垂直。The main shaft 1 is a space triangular truss structure, perpendicular to the support arm 2 .
所述支撑臂2为平面三角桁架结构，其上横梁3带有弧度。The support arm 2 is a planar triangular truss structure, and the upper beam 3 has a radian.
所述上横梁3为锻压预成型钢结构组件，上横梁3上的弧度与反射镜4弧面相适配。The upper beam 3 is a forged preformed steel structure component, and the radian on the upper beam 3 matches the arc surface of the reflector 4 .
所述上横梁3顶面与反射镜4的背面连接，优选通过机械固定或粘贴的方式The top surface of the upper beam 3 is connected to the back of the mirror 4, preferably by mechanical fixing or sticking
连接。connect.
所述反射支架装置采用钢结构，各连杆、横梁之间通过焊接连接。The reflective support device adopts a steel structure, and the connecting rods and beams are connected by welding.
本发明在组装前预先根据镜面所需弧形加工支撑臂2的上横梁，使其具有与镜面相同的弧形，支架完成焊接组装后将反射镜4通过结构胶或者机械方式完全贴合并固定于上横梁顶面。The present invention pre-processes the upper beam of the support arm 2 according to the arc shape required by the mirror surface before assembly, so that it has the same arc shape as the mirror surface. After the bracket is welded and assembled, the reflector 4 is completely attached and fixed to the mirror 4 through structural glue or mechanical means. Top of beam.
本发明的有益效果是：基于机械冷变形的原理，利用本发明的支架装置来固定平面镜的弧度，可以快速低成本地制备微弧镜面。和现有热弯加工弧面镜技术相比，由于可以直接使用普通平面镜，因此加工成本大幅降低。另外，由于支架采用了空间桁架结构，在保证支架结构强度的前提下大幅度降低了自重，钢材用量的减少可以显著降低支架部分的制造成本。The beneficial effects of the present invention are: based on the principle of mechanical cold deformation, using the support device of the present invention to fix the radian of the plane mirror, the micro-arc mirror surface can be prepared quickly and at low cost. Compared with the existing hot-bending curved mirror technology, since ordinary flat mirrors can be directly used, the processing cost is greatly reduced. In addition, since the bracket adopts a space truss structure, the self-weight is greatly reduced under the premise of ensuring the structural strength of the bracket, and the reduction in steel consumption can significantly reduce the manufacturing cost of the bracket part.
附图说明Description of drawings
图1为本发明所述支架装置结构图。Fig. 1 is a structural diagram of the stent device of the present invention.
图2为图1的侧视图。FIG. 2 is a side view of FIG. 1 .
具体实施方式Detailed ways
下面结合附图和实施例详细说明本发明的实施方式。但本领域技术人员了解，下述内容不是对本发明保护范围的限制，任何在本发明基础上做出的改进和变化都在本发明的保护范围之内。The implementation of the present invention will be described in detail below in conjunction with the drawings and examples. However, those skilled in the art understand that the following content does not limit the protection scope of the present invention, and any improvements and changes made on the basis of the present invention are within the protection scope of the present invention.
如图1和图2所示，本发明为基于空间桁架结构的线聚焦反射支架，包括与追踪系统相连的主轴1，主轴1为空间三角桁架结构，起着承载和转轴的作用，主轴1两侧等间隔对称伸出支撑臂2，主轴1与支撑臂2垂直，支撑臂2为平面三角桁架结构，支撑臂2的上横梁3采用预先锻压成型带有弧度的钢结构组件，上横梁3上的弧度与反射镜4弧面相适配。反射镜4背面与上横梁3连接，优选通过机械固定或粘贴的方式与横梁3连接。整个支架采用钢结构，各连杆、横梁之间通过焊接连接。As shown in Figures 1 and 2, the present invention is a line-focusing reflection support based on a space truss structure, which includes a main shaft 1 connected to the tracking system. The support arm 2 is extended symmetrically at equal intervals on the sides, the main shaft 1 is perpendicular to the support arm 2, the support arm 2 is a plane triangular truss structure, and the upper beam 3 of the support arm 2 is a steel structure component with a radian in advance forging and pressing. The radian is compatible with the 4 arc surfaces of the reflector. The back of the reflector 4 is connected to the upper beam 3, preferably connected to the beam 3 by mechanical fixing or pasting. The entire bracket adopts steel structure, and the connecting rods and beams are connected by welding.
本发明的工作原理为：上述基于空间桁架结构的支架装置在组装前预先根据反射镜4镜面所需弧形加工支撑臂2的上横梁3，使其具有与镜面相同的弧形，组装后将反射镜4通过结构胶或者机械方式完全贴合并固定于上横梁3的顶面，利用本发明的支架装置连接平面反射镜，支架装置既起支撑作用，同时也可以通过支撑臂2的上横梁3的弧形来控制平面镜的面型实现对日光的反射和聚焦，并借助追踪系统驱动旋转跟踪日光。The working principle of the present invention is: the above-mentioned support device based on the space truss structure processes the upper beam 3 of the support arm 2 in advance according to the arc shape required by the mirror surface of the reflector 4 before assembly, so that it has the same arc shape as the mirror surface. The reflector 4 is fully fitted and fixed on the top surface of the upper beam 3 by structural glue or mechanical means, and the plane reflector is connected by the support device of the present invention. The arc shape of the plane mirror is used to control the surface shape of the plane mirror to reflect and focus the sunlight, and the tracking system is used to drive the rotation to track the sunlight.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410266015.2A CN104090346A (en) | 2014-06-16 | 2014-06-16 | Line focusing reflection support based on space truss structure |
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| CN201410266015.2A CN104090346A (en) | 2014-06-16 | 2014-06-16 | Line focusing reflection support based on space truss structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007076578A1 (en) * | 2006-01-06 | 2007-07-12 | Nep Solar Pty Ltd | A reflector for a solar energy collection system and a solar energy collection system |
| US7866836B2 (en) * | 2008-03-10 | 2011-01-11 | Mario Rabinowitz | Fresnel solar concentrator array with centered universal pivots |
| CN202256855U (en) * | 2011-09-14 | 2012-05-30 | 皇明太阳能股份有限公司 | Split type focusing device for Fresnel reflector |
| CN202693891U (en) * | 2012-07-17 | 2013-01-23 | 中广核太阳能开发有限公司 | Mirror frame for mounting micro cambered surface reflector |
| CN204086656U (en) * | 2014-06-16 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of line focusing reflective support device based on space truss structure |
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- 2014-06-16 CN CN201410266015.2A patent/CN104090346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007076578A1 (en) * | 2006-01-06 | 2007-07-12 | Nep Solar Pty Ltd | A reflector for a solar energy collection system and a solar energy collection system |
| US7866836B2 (en) * | 2008-03-10 | 2011-01-11 | Mario Rabinowitz | Fresnel solar concentrator array with centered universal pivots |
| CN202256855U (en) * | 2011-09-14 | 2012-05-30 | 皇明太阳能股份有限公司 | Split type focusing device for Fresnel reflector |
| CN202693891U (en) * | 2012-07-17 | 2013-01-23 | 中广核太阳能开发有限公司 | Mirror frame for mounting micro cambered surface reflector |
| CN204086656U (en) * | 2014-06-16 | 2015-01-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of line focusing reflective support device based on space truss structure |
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Application publication date: 20141008 |