WO2016202029A1 - 一种定日镜冲压金属支架 - Google Patents

一种定日镜冲压金属支架 Download PDF

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Publication number
WO2016202029A1
WO2016202029A1 PCT/CN2016/076849 CN2016076849W WO2016202029A1 WO 2016202029 A1 WO2016202029 A1 WO 2016202029A1 CN 2016076849 W CN2016076849 W CN 2016076849W WO 2016202029 A1 WO2016202029 A1 WO 2016202029A1
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Prior art keywords
heliostat
frame body
bridge structure
stamping
annular structure
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PCT/CN2016/076849
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English (en)
French (fr)
Inventor
黄文博
黄文佳
齐志鹏
王帅
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北京首航艾启威节能技术股份有限公司
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Publication of WO2016202029A1 publication Critical patent/WO2016202029A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • 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

Definitions

  • the invention relates to the field of energy collection, in particular to a solar tower type photothermal power generation system, as a stamped metal bracket for heliostats.
  • Heliostats are the most basic concentrating unit in tower solar thermal power stations. Heliostats are a key component of tower solar thermal power plants. It occupies a major part of the power plant investment and the main site occupying the power station.
  • each heliostat consists of several sub-mirrors, each of which consists mainly of a mirror surface and a metal bracket.
  • the consistency and rigidity of the heliostat metal bracket directly reflect the accuracy of the concentrating and the ability to resist the influence of the ambient wind.
  • the metal consumption of the bracket has a great impact on the investment of the whole project. Therefore, it is of great significance to design a lightweight and rigid metal bracket, and to learn from the stamping process in the automotive industry to ensure product consistency.
  • the known metal profile brackets generally have a large weight and are subject to a large amount of wind deformation, and the welding and hot-dip galvanizing make the consistency difficult to ensure, and the manufacturing and installation costs are high.
  • the present invention adopts the following technical solutions:
  • a heliostat stamping metal bracket comprises: a stamping frame body having a rectangular outer contour, the stamping frame body having two long sides, two short sides and four The corners are excessively arced, and the stamping frame body is further provided with a plurality of annular structures and a plurality of bridge structures.
  • the annular structure includes: an outer annular structure and an inner annular structure, wherein the outer annular structure and the inner annular structure are concentric circles, and the center of the annular structure is the stamping frame body center.
  • the radius of the outer annular structure is larger than the radius of the inner annular structure, and the outer annular structure is tangent to the long side of the stamping frame body.
  • the bridge structure includes: a short side bridge structure, a corner bridge structure and a long side bridge structure, and the long side bridge structure extending from the long side of the stamping frame body connects the outer ring And the inner annular structure, the short side bridge structure and the corner bridge structure extending from the short side and the corner of the stamping frame body are connected to the outer annular structure
  • the internal ring structure is described.
  • corner bridge structure, the short side bridge structure and the long side bridge structure and the connection transition zone of the long side, the short side and the corner are arranged in a stepped manner, and the forming height of the connecting transition area is further Lower than the forming height of the bridge structure.
  • the forming height of the annular structure is the same as the forming height of the bridge structure.
  • the two long sides, the two short sides and the four corners are a flanged structure.
  • a center of the intersection of the corner bridge structure and the outer annular structure is provided with a bolt hole connecting the integral frame of the heliostat.
  • the long side, the short side, the corner, the bridge structure and the annular structure of the stamping frame body have a "C" section.
  • the intersection of the long side, the short side, the corner, the bridge structure and the annular portion of the stamping frame body is provided with a punched vent hole, and also serves as a rain drain hole for the heliostat operation.
  • the invention has the advantages of light weight, low cost, consistency and rigidity, and easy automatic production compared with the conventional metal profile bracket; compared with the conventional stamped metal bracket, the bridge structure and the ring shape Partial mutual arrangement and quantity optimization, in the adoption
  • the stiffness of the raw material sheet of the same specification is better, that is, it is more suitable to assemble a large area of a single heliostat with a larger number of sub-mirrors.
  • the raw material sheet used in the optimized stamping bracket of this example is relatively thin, so using this embodiment can save considerable investment.
  • Figure 1 is a schematic view of an overall structure of the present invention
  • FIG. 2 is a partial cross-sectional view of the stamping bracket of FIG. 1 : (a) is a cross-sectional view taken along the line A-A, (b) is a cross-sectional view taken along the line B-B, (c) is a cross-sectional view taken along the line C-C, and (d) is a cross-sectional view taken along the line D-D.
  • a heliostat stamping metal bracket is formed by stamping a thin metal plate material by forming a plurality of forming structures on the plate body, and the heliostat stamping is performed.
  • the metal bracket includes: a stamping frame body 100, the stamping frame body 100 is provided with a plurality of annular structures and a plurality of bridge-like structures, the annular structure comprising: an outer annular structure 9 and an inner annular structure 10,
  • the bridge structure includes: a short side bridge structure 4, a corner bridge structure 5 and a long side bridge structure 6.
  • the outer side of the stamping frame body 100 has a rectangular shape, and the stamping frame body 100 has two long sides 1 , two short sides 2 and four corners 3, the four corners 3 arc
  • the two long sides 1, two short sides 2 and four corners 3 are flanged structures to increase the rigidity thereof
  • the radius of the outer annular structure 9 is larger than the radius of the inner annular structure 10
  • the outer annular structure 9 and the inner annular structure 10 are concentric circles, the center of the annular structure is the center 7 of the stamping frame body 100, and the outer annular structure 9 and the stamping frame body 100
  • the long side 1 is tangent, the bridge structure is gathered along the periphery of the stamping frame body 100 and the corner 3 toward the center 7 of the stamping frame body 100, and the long side bridge structure 6 extending from the long side 1 of the stamping frame body 100 is connected.
  • the outer annular structure 9 and the inner annular structure 10, the short-side bridge structure 5 and the corner bridge structure 4 extending from the short side 2 and the
  • the corner bridge structure 4, the short side bridge structure 5 and the long side bridge structure 6 and the connection transition region 8 of the long side 1, the short side 2 and the corner 3 are arranged in a stepped manner, and the connection transition
  • the forming height of the region 8 is lower than the forming height of the bridge structure (see FIG. 2), the area of the connecting transition region 8 at the four corners is larger, and the contact surface with the corner bridge structure 4 is enlarged.
  • the local stiffness that is subject to external forces is fully guaranteed.
  • the forming height of the annular structure is the same as the forming height of the bridge structure.
  • a central position of the corner bridge 4 extending from the corner 3 and the outer annular structure 9 is provided with a bolt hole 11 connecting the integral frame of the heliostat, and the corner bridge 4 is located on the whole bracket The diagonal position, where the stiffness is large enough to ensure stability after the stamped bracket is attached.
  • the long side 1, the short side 2, the corner 3, the bridge structure and the annular structure of the stamping frame body 100 are all punched.
  • the cross-sectional shape is approximately "C” shape.
  • the general "C"-shaped section starting end and the ending end should be respectively opened up and down, but the cross section of the present invention
  • the shape is not limited to this form, and the angle of the inclined section 12 of the section can be adjusted according to the actual conditions of the material and the process, and can be perpendicular to the plane 13 (13') of the sheet, and the rigidity of the stamping bracket can be enhanced.
  • the region 15 between the long side 1, the short side 2, the corner 3, the bridge structure and the annular structure of the stamping frame body 100 should be cut with a suitable material to reduce the weight of the entire stamping bracket. In this example, 19 pieces are cut out, and the cut portion is smaller than the flat portion of the press forming, leaving a stick.
  • the strip-shaped region 14 of the mirror surface is integrated with the stamping bracket after bonding, so that the cut portion does not affect the overall rigidity.
  • the intersection of the long side 1, the short side 2, the corner 3, the bridge structure and the annular portion of the stamping frame body 100 has a punched venting opening 16 and also serves as a rain drain hole for the heliostat operation.
  • the invention has the advantages of light weight, low cost, consistency and rigidity, and easy automatic production compared with the conventional metal profile bracket; compared with the conventional stamped metal bracket, the bridge structure and the ring shape Partial mutual arrangement and quantity optimization, the rigidity is better under the premise of using the same specification raw material sheet, that is, it is more suitable to use a larger number of sub-mirrors to assemble a large area of a single heliostat.
  • the raw material sheet used in the optimized stamping bracket of this example is relatively thin, so using this embodiment can save considerable investment.

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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)
  • Optical Elements Other Than Lenses (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

一种定日镜冲压金属支架，包括：一冲压架体（100），冲压架体（100）外侧轮廓呈矩形，冲压架体（100）具有两长边（1）、两短边（2）及四个边角（3），四个边角（3）圆弧过度，冲压架体上还设有多个环状结构（9，10）及多个桥状结构（5，6），该支架重量轻，一致性和刚度能够保证，易实现自动化生产。

Description

一种定日镜冲压金属支架 技术领域
本发明涉及能源收集的领域，尤其涉及太阳能塔式光热发电系统，作为定日镜的冲压金属支架。
背景技术
定日镜是塔式太阳能光热发电站中最基本的聚光单元体。定日镜是塔式太阳能热动力发电站的关键部件。它占有电站投资的主要部分和占据电站的主要场地。
由于光热发电技术的进步，机组规模逐步增大，单独的小面积定日镜不能满足要求。现在常采用的方案是每面定日镜由若干子镜组成，每面子镜主要由反射镜面和金属支架组成。定日镜金属支架的一致性和刚度直接体现聚光的精度和抵抗环境风影响的能力，支架的金属耗量对整个项目的投资影响很大。因此设计出重量轻且刚度好的金属支架意义重大，同时为保证产品的一致性可借鉴汽车工业中的冲压工艺方案。
目前，公知的金属型材支架通常重量大，受风压变形量偏大，焊接和热镀锌使得一致性难以保证，制造安装成本较高。公知的已采用冲压的支架结构相对简单，满足了一般项目的需要，但应用在大尺寸的定日镜上，如7×5＝35块及以上子镜组成的定日镜，仍有需优化设计的空间。
发明内容
本发明的目的在于提供一种性能更加优异的冲压金属支架，以改进公知技术应用到大尺寸的定日镜上存在的不足。使太阳能塔式光热发电系统更加可靠。
为实现上述目的，本发明采用以下技术方案：
一种定日镜冲压金属支架，所述定日镜冲压金属支架包括：一冲压架体，所述冲压架体外侧轮廓呈矩形，所述冲压架体具有两长边、两短边及四个边角，所述四个边角圆弧过度，所述冲压架体上还设有多个环状结构及多个桥状结构。
进一步的，所述环状结构包括：外部环状结构与内部环状结构，所述外部环状结构与内部环状结构为同心圆结构，所述环状结构的圆心为所述冲压架体的中心。
进一步的，所述外部环状结构的半径大于所述内部环状结构的半径，所述外部环状结构与所述冲压架体的长边相切。
进一步的，所述桥状结构包括：短边桥状结构、边角桥状结构和长边桥状结构，所述冲压架体长边延伸出的所述长边桥状结构连接所述外部环状结构和所述内部环状结构，所述冲压架体短边和边角延伸出的所述短边桥状结构和所述边角桥状结构穿过所述外部环状结构后连接到所述内部环状结构。
进一步的，所述边角桥状结构、短边桥状结构和长边桥状结构与所述长边、短边和边角的连接过渡区呈阶梯过度布置，所述连接过渡区的成型高度低于所述桥状结构的成型高度。
进一步的，所述环状结构的成型高度与所述桥状结构的成型高度相同。
进一步的，所述两长边、两短边及四个边角为翻边结构。
进一步的，所述边角桥状结构与外部环状结构相交处的中心位置开有连接定日镜整体框架的螺栓孔。
进一步的，所述冲压架体的长边、短边、边角、桥状结构及环状结构截面为“C”型截面。
进一步的，所述冲压架体的长边、短边、边角、桥状结构和环状部分的交接处开有冲压的排气孔，同时兼做定日镜运行的排雨水孔。
本发明的有益效果在于，与以往的金属型材支架相比，重量轻，成本低，一致性和刚度能够保证，易实现自动化生产；与以往的冲压金属支架相比，因桥状结构和环状部分相互的布置形式和数量优化，在采用 同样规格原材料板材的前提下刚度更好，即更适合采用较多数量的子镜拼装实现大面积的单个定日镜。同理，在达到相同的支架刚度情况下，本实例优化后的冲压支架所用的原材料板材相对较薄，因此使用本实施例，能节省可观的投资。
附图说明
图1是本发明的一种整体结构示意图；
图2是图1中冲压支架的四处局部剖视图：其中(a)为A-A截面的剖视图，(b)为B-B截面的剖视图，(c)为C-C截面的剖视图，(d)为D-D截面的剖视图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细描述。应当理解，此处所描述的具体实施例仅仅用于解释本发明，并不用于限定本发明。
相反，本发明涵盖任何由权利要求定义的在本发明的精髓和范围上做的替代、修改、等效方法以及方案。进一步，为了使公众对本发明有更好的了解，在下文对本发明的细节描述中，详尽描述了一些特定的细节部分。对本领域技术人员来说没有这些细节部分的描述也可以完全理解本发明。下面结合附图与具体实施方式，对本发明进一步说明。
如图1、图2所示，一种定日镜冲压金属支架，所述定日镜冲压金属支架由薄板材料经过冲压成型，在板体上形成多个成型结构构成，所述定日镜冲压金属支架包括：一冲压架体100，所述冲压架体100上设有多个环状结构及多个桥状结构，所述环状结构包括：外部环状结构9与内部环状结构10，所述桥状结构包括：短边桥状结构4、边角桥状结构5和长边桥状结构6，所述冲压架体100外侧轮廓呈矩形，所述冲压架体100具有两长边1、两短边2及四个边角3，所述四个边角3圆弧 过度，所述两长边1、两短边2及四个边角3为翻边结构，以增加其刚度，所述外部环状结构9的半径大于所述内部环状结构10的半径，所述外部环状结构9与内部环状结构10为同心圆结构，所述环状结构的圆心为所述冲压架体100的中心7，所述外部环状结构9与所述冲压架体100的长边1相切，所述桥状结构沿冲压架体100周边及边角3向冲压架体100中心7汇聚，从所述冲压架体100长边1延伸出的长边桥状结构6连接外部环状结构9和内部环状结构10，从所述冲压架体100短边2和边角3延伸出的短边桥状结构5和边角桥状结构4穿过外部环状结构9后连接到内部环状结构10。
所述边角桥状结构4、短边桥状结构5和长边桥状结构6与所述长边1、短边2和边角3的连接过渡区8呈阶梯过度布置，所述连接过渡区8的成型高度低于所述桥状结构的成型高度(参见图2)，四个边角处的连接过渡区8的面积较大，与所述边角桥状结构4接触面加大，使受外力大的局部刚度得到充分保障。
所述环状结构的成型高度与所述桥状结构的成型高度相同。
从所述边角3延伸出的边角桥状结构4与外部环状结构9相交处的中心位置开有连接定日镜整体框架的螺栓孔11，所述边角桥状结构4位于整体支架的对角线位置，此处的刚度足够大可确保冲压支架连接后的稳定性。
所述冲压架体100的长边1、短边2、边角3、桥状结构及环状结构都通过冲压机形
成“C”型的截面，截面形状近似“C”形，为保证冲压的质量和成品率，一般的“C”型截面起始端和终了端应分别向上和向下撇开，但本发明的截面的形状并不局限在这种形式，所述截面倾斜段12的角度可根据材料和工艺的实际条件调整，最多可以垂直于板材的平面13(13′)，冲压支架的刚度得以增强。
所述冲压架体100的长边1、短边2、边角3、桥状结构及环状结构之间围成的区域15应进行适当材料切除，以减小整个冲压支架的重量。本实例为切除19块，切除部分小于冲压成型的平面部分，留有粘 接镜面的条状区域14，粘接后镜面与冲压支架成为一体，因此切除的部分不影响整体的刚度。
所述冲压架体100的长边1、短边2、边角3、桥状结构和环状部分的交接处开有冲压的排气孔16，同时兼做定日镜运行的排雨水孔。
本发明的有益效果在于，与以往的金属型材支架相比，重量轻，成本低，一致性和刚度能够保证，易实现自动化生产；与以往的冲压金属支架相比，因桥状结构和环状部分相互的布置形式和数量优化，在采用同样规格原材料板材的前提下刚度更好，即更适合采用较多数量的子镜拼装实现大面积的单个定日镜。同理，在达到相同的支架刚度情况下，本实例优化后的冲压支架所用的原材料板材相对较薄，因此使用本实施例，能节省可观的投资。
以上实施例仅用以说明而非限制本发明的技术方案。因此，不脱离本发明精神和范围的修改或局部替换，如桥状结构的数量、角度调整等，应涵盖在本发明的保护范围当中。

Claims (10)

  1. 一种定日镜冲压金属支架，所述定日镜冲压金属支架包括：一冲压架体(100)，所述冲压架体(100)外侧轮廓呈矩形，所述冲压架体(100)具有两长边(1)、两短边(2)及四个边角(3)，所述四个边角(3)圆弧过度，所述冲压架体(100)上还设有多个环状结构及多个桥状结构。
  2. 根据权利要求1所述的定日镜冲压金属支架，其中，所述环状结构包括：外部环状结构(9)与内部环状结构(10)，所述外部环状结构(9)与内部环状结构(10)为同心圆结构，所述环状结构的圆心为所述冲压架体(100)的中心(7)。
  3. 根据权利要求2所述的定日镜冲压金属支架，其中，所述外部环状结构(9)的半径大于所述内部环状结构(10)的半径，所述外部环状结构(9)与所述冲压架体(100)的长边(1)相切。
  4. 根据权利要求3所述的定日镜冲压金属支架，其中，所述桥状结构包括：短边桥状结构(4)、边角桥状结构(5)和长边桥状结构(6)，所述冲压架体(100)长边(1)延伸出的所述长边桥状结构(6)连接所述外部环状结构(9)和所述内部环状结构(10)，所述冲压架体(100)短边(2)和边角(3)延伸出的所述短边桥状结构(5)和所述边角桥状结构(4)穿过所述外部环状结构(9)后连接到所述内部环状结构(10)。
  5. 根据权利要求1所述的定日镜冲压金属支架，其中，所述边角桥状结构(4)、短边桥状结构(5)和长边桥状结构(6)与所述长边(1)、短边(2)和边角(3)的连接过渡区(8)呈阶梯过度布置，所述连接过渡区(8)的成型高度低于所述桥状结构的成型高度。
  6. 根据权利要求1所述的定日镜冲压金属支架，其中，所述环状结构的成型高度与所述桥状结构的成型高度相同。
  7. 根据权利要求1所述的定日镜冲压金属支架，其中，所述两长边(1)、两短边(2)及四个边角(3)为翻边结构。
  8. 根据权利要求5所述的定日镜冲压金属支架，其中，所述边角 桥状结构(4)与外部环状结构(9)相交处的中心位置开有连接定日镜整体框架的螺栓孔(11)。
  9. 根据权利要求1所述的定日镜冲压金属支架，其中，所述冲压架体(100)的长边(1)、短边(2)、边角(3)、桥状结构及环状结构截面为“C”型截面。
  10. 根据权利要求1所述的定日镜冲压金属支架，其中，所述冲压架体(100)的长边(1)、短边(2)、边角(3)、桥状结构和环状部分的交接处开有冲压的排气孔(16)，同时兼做定日镜运行的排雨水孔。
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