WO2021012353A1 - 隔震装置 - Google Patents

隔震装置 Download PDF

Info

Publication number
WO2021012353A1
WO2021012353A1 PCT/CN2019/103020 CN2019103020W WO2021012353A1 WO 2021012353 A1 WO2021012353 A1 WO 2021012353A1 CN 2019103020 W CN2019103020 W CN 2019103020W WO 2021012353 A1 WO2021012353 A1 WO 2021012353A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting plate
isolation device
geometric structure
mounting core
end surface
Prior art date
Application number
PCT/CN2019/103020
Other languages
English (en)
French (fr)
Inventor
程永锋
孟宪政
卢智成
朱祝兵
高坡
李圣
Original Assignee
中国电力科学研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中国电力科学研究院有限公司 filed Critical 中国电力科学研究院有限公司
Publication of WO2021012353A1 publication Critical patent/WO2021012353A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type

Definitions

  • the present disclosure relates to the technical field of power grid disaster prevention and mitigation, for example, to a seismic isolation device.
  • Transformers and high-voltage reactors are the main power equipment in the substation.
  • the main forms of damage under the action of an earthquake are the dumping and displacement of the transformer and reactor body, or the fracture or dislocation of the high-voltage bushing on the power equipment.
  • the working temperature is lower than -30°C
  • the elasticity of the rubber used in the shock isolation device is significantly reduced, so it is not suitable to be used in severe cold conditions, and the rubber is not resistant to high temperatures, and the working temperature should not exceed 70°C.
  • the creep effect of rubber causes the seismic isolation support to partially return to the initial state after displacement, but a certain residual deformation will occur.
  • the rubber isolation support produces a large displacement under the action of seismic force, and it will be very large when the force disappears. It is difficult to reset completely. Rubber aging will cause the gradual deterioration of the physical and chemical properties and mechanical properties of the rubber, reduce the bearing capacity of the seismic isolation device, and cause the isolation capacity of the seismic isolation layer composed of multiple isolation devices to be weak. In severe cases, the isolation device will lose its use value , Resulting in a short life span.
  • the present disclosure provides a shock isolation device, which includes a first connecting plate, at least three supporting members, a mounting core and a second connecting plate, wherein:
  • the first connecting plate and the second connecting plate are arranged in parallel;
  • the mounting core is vertically arranged between the first connecting plate and the second connecting plate, and is located in a central position, and the upper end surface of the mounting core is fixedly connected to the first connecting plate and the mounting The lower end surface of the core is fixedly connected with the second connecting plate;
  • the at least three supporting members are vertically arranged between the first connecting plate and the second connecting plate around the mounting core, the lower end surface of the supporting member has a first geometric structure and the supporting member The upper end surface is fixedly connected with the first connecting plate;
  • a second geometric structure is provided at the connection between the upper surface of the second connecting plate and the lower end surface of the supporting member, and the second geometric structure is slidably fitted with the first geometric structure.
  • Fig. 1 is a schematic diagram of the overall structure of a seismic isolation device in an embodiment of the present invention
  • Figure 2 is a top view of the first connecting plate in the embodiment of the present invention.
  • Figure 3 is a cross-sectional view of the first connecting plate in the embodiment of the present invention.
  • Figure 4 is a top view of a second connecting plate in an embodiment of the present invention.
  • Figure 5 is a cross-sectional view of a second connecting plate in an embodiment of the present invention.
  • Figure 6 is a schematic diagram of a supporting member in an embodiment of the present invention.
  • Fig. 7 is a schematic diagram of the mounting core in the embodiment of the present invention.
  • the first connecting plate 2. The supporting member, 3. The mounting core, 4. The second connecting plate, 5. The bolt.
  • the embodiment of the present invention provides a seismic isolation device, which is arranged between the transformer or reactor and the foundation.
  • the seismic isolation device includes a first connecting plate 1, at least three supporting members 2, and a mounting core 3. And second connecting plate 4.
  • the first connecting board 1 and the second connecting board 4 are arranged horizontally, and the mounting core 3 is vertically arranged between the first connecting board 1 and the second connecting board 4 and is located at the center.
  • the upper end surface of the mounting core 3 is fixedly connected to the first connecting plate 1, and the lower end surface of the mounting core 3 is fixedly connected to the second connecting plate 4.
  • At least three supporting members 2 are arranged vertically between the first connecting plate 1 and the second connecting plate 4 around the mounting core 3, the lower end surface of the supporting member 2 has a first geometric structure, and the upper end surface of the supporting member 2 is connected to the first The board 1 is fixedly connected.
  • connection between the upper surface of the second connecting plate 4 and the lower end surface of the supporting member 2 is provided with a second geometric structure, and the second geometric structure is slidably fitted with the first geometric structure.
  • the first geometric structure slides to the high point of the second geometric structure, and when the vibration ends, the first geometric structure slides to the low point of the second geometric structure.
  • the first geometric structure is a cambered convexity
  • the second geometrical structure is a cambered groove matched with the cambered convexity, and the cambered convexity can slide on the cambered groove.
  • the shock isolation device provided by the embodiment of the present invention further includes a plurality of bolts 5.
  • the upper end surface of the support member 2 and the upper end surface of the mounting core 3 are fixed to the first connecting plate 1 by the bolts 5.
  • Each support member 2 and the mounting core 3 The heights are equal.
  • FIGS. 2 and 3 When the number of support members 2 is 4, the top view and cross-sectional view of the first connecting plate 1 are shown in FIGS. 2 and 3, respectively, and the top view and cross-sectional view of the second connecting plate 4 are shown in FIGS. 4 and 5, respectively.
  • the materials used for the first connecting plate 1, the second connecting plate 4 and the supporting member 2 include carbon steel or alloy steel.
  • the maximum thickness of the first connecting plate 1 is smaller than the maximum thickness of the second connecting plate 4.
  • the supporting member 2 is shown in FIG. 6, and the lower end surface of the supporting member 2 is curved convex.
  • the mounting core 3 is shown in FIG. 7, the material used for the mounting core 3 is lead metal, and other metal materials with better shearing energy consumption can also be used, so that the mounting core 3 can automatically recover after deformation.
  • the horizontal rigidity required by the transformer or reactor is determined based on the shear area of the mounting core 3 and the radius of curvature of the arc-shaped groove.
  • the first connecting plate 1 is fixedly connected to the bottom of the transformer or reactor, and the second connecting plate 4 is fixedly connected to the foundation.
  • the upper structure of the seismic isolation device produces horizontal vibration
  • the first connecting plate 1 and the second connecting plate 4 produce relative displacement
  • the mounting core 3 provides additional damping due to shear deformation
  • the supporting member 2 and the second connecting plate 4 Additional damping is provided due to friction to dissipate seismic energy
  • the installation core 3 and support member 2 provide initial stiffness to maintain the normal operation of electrical equipment.
  • the seismic isolation device provided in the present application is arranged between the transformer or reactor and the foundation, and includes a first connecting plate, at least three supporting members, a mounting core, and a second connecting plate.
  • the first connecting plate and the second connecting plate are arranged in parallel
  • the mounting core is vertically arranged between the first connecting plate and the second connecting plate, and is located at the center position
  • the supporting member is arranged vertically between the first connecting plate and the second connecting plate around the mounting core, and the lower end surface of the supporting member It has a first geometric structure.
  • the connection between the upper surface of the second connecting plate and the lower end surface of the supporting member is provided with a second geometric structure.
  • the second geometric structure is matched with the first geometric structure, and the mounting core can automatically recover after deformation. It not only improves the shock isolation capability, but also has a long service life.
  • the technical solution provided by this application has simple structure, convenient installation, low cost, is beneficial to the maintenance of electric equipment, and has strong engineering application feasibility.
  • the supporting members of this application are all made of carbon steel or alloy steel, and the mounting core is made of lead metal.
  • the lead metal produces shear deformation, and friction occurs between the lower end surface of the supporting member and the second connecting plate, which increases structural damping and dissipates seismic energy. , Reduce the seismic response of power equipment.
  • the shear area of the mounting core and the radius of curvature of the arc-shaped groove the horizontal rigidity required for the normal operation of the power equipment and the wind and earthquake resistance can be provided.
  • Using the transformer and reactor of the seismic isolation device of the present application can reduce the natural frequency of the power equipment itself, avoid the resonance reaction of the power equipment and the seismic wave when an earthquake occurs, thereby protecting the structural safety of the power equipment. After the earthquake is over, the self-weight action of the transformer and reactor can reset the seismic isolation device to the initial state without affecting the normal operation of the power equipment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

本公开提供了一种隔震装置，设置于变压器或电抗器与地基基础之间，隔震装置包括第一连接板、至少三个支撑构件、安装芯和第二连接板。第一连接板与第二连接板水平设置；安装芯竖直设置于第一连接板与第二连接板之间，且位于中心位置，并且安装芯的上端面与第一连接板固定连接且安装芯的下端面与第二连接板固定连接；至少三个支撑构件围绕安装芯竖直设置于第一连接板与第二连接板之间，支撑构件的下端面具有第一几何结构且支撑构件的上端面与第一连接板固定连接；第二连接板的上表面与支撑构件的下端面的连接处设有第二几何结构，第二几何结构与第一几何结构可滑动配合。

Description

隔震装置
本申请要求在2019年07月24日提交中国专利局、申请号为201910672229.2的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及电网防灾减灾技术领域，例如涉及一种隔震装置。
背景技术
地震灾害中，变压器、高压电抗器电力设备损坏严重，电力系统遭到严重损坏，造成国民经济的严重损失，也严重影响了地震灾区的灾后重建工作。变压器和高压电抗器是变电站内的主要电力设备，在地震作用下的主要破坏形式为变压器、电抗器本体发生倾倒和移位，或者是电力设备上的高压套管断裂、错位。
随着对地震灾害的重视，地震区的电力变压器和高压电抗器设备与地基基础的连接多已采取加固措施，电力设备本体的破坏情况有所减轻，但是电力设备本体上的瓷套管在强震作用下仍会发生严重损坏。而特高压变电站中的变压器、电抗器由于本体质量较大，重心较高，对于套管的动力放大作用更加明显。对于变压器、电抗器这类重量较大的电力设备，采用隔震技术是减小电力设备地震响应的有效方式。目前的隔震技术主要是采用多个隔震装置形成隔震层，适用于静态位移小而动态位移短暂且很大的情况，主要用于隔离高频振动，缺点是橡胶会老化，产生蠕变。
当工作温度低于-30℃，隔震装置中所采用的橡胶的弹性显著降低，因此不 宜在严寒条件下使用，同时橡胶不耐高温，工作温度不应超过70℃。橡胶的蠕变效应导致隔震支座在产生位移后虽然会部分恢复到初始状态，但是会产生一定的残留变形，橡胶隔震支座在地震力作用下产生较大位移，当力消失时很难完整复位。橡胶老化会引起橡胶物理化学性质和机械性能的逐步变坏，降低隔震装置的承载力，导致多个隔震装置构成的隔震层的隔震能力弱，严重时隔震装置将丧失使用价值，导致其寿命短。
发明内容
本公开提供一种隔震装置，包括第一连接板、至少三个支撑构件、安装芯和第二连接板，其中：
所述第一连接板与所述第二连接板平行设置；
所述安装芯竖直设置于所述第一连接板与所述第二连接板之间，且位于中心位置，并且所述安装芯的上端面与所述第一连接板固定连接且所述安装芯的下端面与所述第二连接板固定连接；
所述至少三个支撑构件围绕所述安装芯竖直设置于所述第一连接板与所述第二连接板之间，所述支撑构件的下端面具有第一几何结构且所述支撑构件的上端面与所述第一连接板固定连接；
所述第二连接板的上表面与所述支撑构件的下端面的连接处设有第二几何结构，所述第二几何结构与所述第一几何结构可滑动配合。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
图1是本发明实施例中隔震装置整体结构示意图；
图2是本发明实施例中第一连接板俯视图；
图3是本发明实施例中第一连接板剖视图；
图4是本发明实施例中第二连接板俯视图；
图5是本发明实施例中第二连接板剖视图；
图6是本发明实施例中支撑构件示意图；
图7是本发明实施例中安装芯示意图。
图中，1、第一连接板，2、支撑构件，3、安装芯，4、第二连接板，5、螺栓。
具体实施方式
下面结合附图对本发明实施例作详细说明。
本发明实施例提供一种隔震装置，设置于变压器或电抗器与地基基础之间，如图1所示，该隔震装置包括第一连接板1、至少三个支撑构件2、安装芯3和第二连接板4。
第一连接板1与第二连接板4水平设置，安装芯3竖直设置于第一连接板1与第二连接板4之间，且位于中心位置。安装芯3的上端面与第一连接板1固定连接，且安装芯3的下端面与第二连接板4固定连接。
至少三个支撑构件2围绕安装芯3竖直设置于第一连接板1与第二连接板4之间，支撑构件2的下端面具有第一几何结构，支撑构件2的上端面与第一连接板1固定连接。
第二连接板4的上表面与支撑构件2的下端面的连接处设有第二几何结构，第二几何结构与第一几何结构可滑动配合。
震动发生时，第一几何结构滑动到第二几何结构的高点，震动结束时，第 一几何结构滑动到第二几何结构的低点。
第一几何结构为弧面凸起，第二几何结构为与弧面凸起相配合的弧面凹槽，弧面凸起可在弧面凹槽上滑动。
本发明实施例提供的隔震装置还包括多个螺栓5，支撑构件2的上端面和安装芯3的上端面均通过螺栓5与第一连接板1固定，每个支撑构件2和安装芯3的高度均相等。
在支撑构件2的数量为4的情况下，第一连接板1俯视图和剖视图分别如图2和图3所示，第二连接板4俯视图和剖视图分别如图4和图5所示。
第一连接板1、第二连接板4和支撑构件2采用的材料包括：碳素钢或合金钢。第一连接板1的最大厚度小于第二连接板4的最大厚度。
支撑构件2如图6所示，支撑构件2的下端面为弧面凸起。安装芯3如图7所示，安装芯3采用的材料为铅金属，也可采用其他具有较好的剪切耗能能力的金属材料，使得安装芯3发生形变后能够自动恢复。
变压器或电抗器所需的水平刚度基于安装芯3的剪切面积，以及弧形凹槽的曲率半径确定。
第一连接板1与变压器或电抗器的底部固定连接，第二连接板4与地基基础固定连接。
在地震波作用下，隔震装置上部结构产生水平向振动，第一连接板1和第二连接板4产生相对位移，安装芯3因剪切变形提供附加阻尼，支撑构件2与第二连接板4因摩擦作用提供附加阻尼，耗散地震能量，安装芯3和支撑构件2提供初始刚度，维护电力设备正常运行。地震作用后，在隔震装置上部结构的自重作用下，隔震装置恢复到初始形态。
本申请提供的隔震装置设置于变压器或电抗器与地基基础之间，包括第一 连接板、至少三个支撑构件、安装芯和第二连接板，第一连接板与第二连接板平行设置，安装芯竖直设置于第一连接板与第二连接板之间，且位于中心位置，支撑构件围绕安装芯竖直设置于第一连接板与第二连接板之间，支撑构件的下端面具有第一几何结构，第二连接板的上表面与支撑构件的下端面的连接处设有第二几何结构，第二几何结构与第一几何结构相配合，安装芯发生形变后能够自动恢复，不仅提高了隔震能力，且使用寿命长。
本申请提供的技术方案结构简单，安装方便，造价低廉，有利于电力设备的维修，工程应用可行性强。
本申请的支撑构件均采用碳素钢或合金钢，安装芯采用铅金属，铅金属产生剪切变形，支撑构件的下端面与第二连接板之间产生摩擦，增加结构阻尼，耗散地震能量，减小电力设备的地震响应。而且，通过调整安装芯的剪切面积，以及弧形凹槽的曲率半径，即可提供电力设备正常运行、抗风抗震运行所需的水平刚度。使用本申请的隔震装置的变压器和电抗器，能够降低电力设备自身的自振频率，避免了地震发生时电力设备与地震波产生共振反应，从而保护电力设备的结构安全。地震结束后，靠变压器和电抗器的自重作用能够使得隔震装置复位到初始状态，不影响电力设备的正常运行。

Claims (10)

  1. 一种隔震装置，设置于变压器或电抗器与地基基础之间，所述隔震装置包括第一连接板、至少三个支撑构件、安装芯和第二连接板，其中：
    所述第一连接板与所述第二连接板平行设置；
    所述安装芯竖直设置于所述第一连接板与所述第二连接板之间，且位于中心位置，并且所述安装芯的上端面与所述第一连接板固定连接且所述安装芯的下端面与所述第二连接板固定连接；
    所述至少三个支撑构件围绕所述安装芯竖直设置于所述第一连接板与所述第二连接板之间，所述支撑构件的下端面具有第一几何结构且所述支撑构件的上端面与所述第一连接板固定连接；
    所述第二连接板的上表面与所述支撑构件的下端面的连接处设有第二几何结构，所述第二几何结构与所述第一几何结构可滑动配合。
  2. 根据权利要求1所述的隔震装置，其中，震动发生时，所述第一几何结构滑动到所述第二几何结构的高点，震动结束时，所述第一几何结构滑动到所述第二几何结构的低点。
  3. 根据权利要求1或2所述的隔震装置，其中，所述第一几何结构为弧面凸起，所述第二几何结构为与所述弧面凸起相配合的弧面凹槽，所述弧面凸起可在所述弧面凹槽上滑动。
  4. 根据权利要求1所述的隔震装置，还包括多个螺栓，所述支撑构件的上端面和所述安装芯的上端面均通过螺栓与所述第一连接板固定。
  5. 根据权利要求1或2所述的隔震装置，其中，每个支撑构件和所述安装芯的高度均相等。
  6. 根据权利要求1所述的隔震装置，其中，所述第一连接板、所述第二连接板和所述支撑构件采用的材料包括：碳素钢或合金钢。
  7. 根据权利要求1所述的隔震装置，其中，所述第一连接板的最大厚度小于所述第二连接板的最大厚度。
  8. 根据权利要求1所述的隔震装置，其中，所述安装芯采用的材料包括铅金属，使得所述安装芯发生形变后能够自动恢复。
  9. 根据权利要求3所述的隔震装置，其中，所述变压器或电抗器所需的水平刚度基于所述安装芯的剪切面积，以及所述弧形凹槽的曲率半径确定。
  10. 根据权利要求1或2所述的隔震装置，其中，所述第一连接板与所述变压器或电抗器的底部固定连接，所述第二连接板与所述地基基础固定连接。
PCT/CN2019/103020 2019-07-24 2019-08-28 隔震装置 WO2021012353A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910672229.2A CN110534295A (zh) 2019-07-24 2019-07-24 一种隔震装置
CN201910672229.2 2019-07-24

Publications (1)

Publication Number Publication Date
WO2021012353A1 true WO2021012353A1 (zh) 2021-01-28

Family

ID=68660865

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/103020 WO2021012353A1 (zh) 2019-07-24 2019-08-28 隔震装置

Country Status (2)

Country Link
CN (1) CN110534295A (zh)
WO (1) WO2021012353A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257670A (ja) * 1999-03-08 2000-09-19 Bando Chem Ind Ltd 免震装置
CN105862578A (zh) * 2016-06-07 2016-08-17 吴国庆 自复位滑移隔震支座
CN206397236U (zh) * 2016-12-21 2017-08-11 柳州东方工程橡胶制品有限公司 一种低刚度多维隔震装置
CN207315977U (zh) * 2017-06-05 2018-05-04 陕西永安减震科技有限公司 一种新型并联变刚度隔震支座
CN207661316U (zh) * 2017-12-13 2018-07-27 苏州海德新材料科技股份有限公司 设备安装结构及复合隔震支座
CN109371828A (zh) * 2018-12-19 2019-02-22 苏州海德新材料科技股份有限公司 复合隔震支座

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257670A (ja) * 1999-03-08 2000-09-19 Bando Chem Ind Ltd 免震装置
CN105862578A (zh) * 2016-06-07 2016-08-17 吴国庆 自复位滑移隔震支座
CN206397236U (zh) * 2016-12-21 2017-08-11 柳州东方工程橡胶制品有限公司 一种低刚度多维隔震装置
CN207315977U (zh) * 2017-06-05 2018-05-04 陕西永安减震科技有限公司 一种新型并联变刚度隔震支座
CN207661316U (zh) * 2017-12-13 2018-07-27 苏州海德新材料科技股份有限公司 设备安装结构及复合隔震支座
CN109371828A (zh) * 2018-12-19 2019-02-22 苏州海德新材料科技股份有限公司 复合隔震支座

Also Published As

Publication number Publication date
CN110534295A (zh) 2019-12-03

Similar Documents

Publication Publication Date Title
CN201851582U (zh) 一种高阻尼抗倾覆复合隔震支座
CN102221061B (zh) 一种橡胶弹簧阻尼减震器
KR101210655B1 (ko) 진동제어를 위한 전기설비용 면진장치
CN106838111A (zh) 阻尼隔振系统及复合阻尼隔振器
CN102360990B (zh) 一种多断口特高压直流断路器结构
Tajirian Base isolation design for civil components and civil structures
CN202674725U (zh) 一种用于高压电气设备隔震的组合式隔震支座
WO2021012353A1 (zh) 隔震装置
CN103195854B (zh) 特高压换流变压器隔震消能装置
CN217325898U (zh) 隔震装置
CN110424547A (zh) 一种变摩擦滑移隔震支座
CN201656298U (zh) 向心式摩擦阻尼减震器
KR101210656B1 (ko) 3축 방향 진동제어를 위한 전기설비용 면진장치
CN105839974B (zh) 一种用于变电站高压电气设备的隔震装置
CN106931071A (zh) 一种工业设备组合式隔震支座
CN208563360U (zh) 立式储罐环梁滚动隔震装置
CN112324841A (zh) 一种用于穿墙套管振动控制的阻尼装置
CN112554362A (zh) 竖向可脱离的建筑用橡胶支座
JPS6226513Y2 (zh)
CN219349922U (zh) 一种大容量干式变压器用稳定隔震装置
CN213936044U (zh) 一种防震效果好的真空断路器
KR102608837B1 (ko) 변전소 변압기의 방진 지지장치
CN220847069U (zh) 一种抗震橡胶支座
CN219080650U (zh) 一种新型隔震建筑用防落梁抗拉装置
CN211371153U (zh) Gis设备隔震设计结构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19938786

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19938786

Country of ref document: EP

Kind code of ref document: A1