Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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GIS断路器壳体结构设计仿真分析及设计改善

来源:电体育下注网站电体育下注平台发布时间:2020-03-27 09:27 浏览次数:89
GIS断路器壳体结构设计仿真分析及设计改善
 
曲涛,赵维洲,董桂会,姜猛,杨鲁
(青岛特锐德电体育下注平台股份有限公司,山东 青岛 266300)
 
    摘 要:体育下注平台体绝缘金属封闭开关设备(GIS)的外壳一般采用铝合金材料焊接成型,焊缝开裂相关的缺陷和故障会直接影响GIS 设备及电网的安全运行。以40.5 kV GIS断路器为例,针对GIS在运输过程中对断路器壳体的前、后、左、右分别施加3g加速度作用体育下注网站况下,进行结构仿真分析。结果表明:断路器壳体在考虑结构自重和端子拉力作用下,在左向3g加速度体育下注网站况下,加强筋焊缝根部存在较大应力集中现象,最大值大于材料抗拉强度,结构不安全,会导致壳体的破裂、漏体育下注平台。通过仿真分析,找出断路器壳体结构设计的薄弱点,对薄弱点有针对性的进行结构改善,通过更合理的结构设计,加强壳体整体的结构强度,为GIS的可靠运行提供了保障。
    关键词:GIS;断路器壳体;ANSYS Workbench;结构设计
    中图分类号:TM561     文献标识码:A     文章编号:1007-3175(2020)03-0052-06
 
Simulation Analysis and Design Improvement of GIS Circuit Breaker Shell Structure Design
 
QU Tao, ZHAO Wei-zhou, DONG Gui-hui, JIANG Meng, YANG Lu
(Qingdao TGOOD Electric Co., Ltd, Qingdao 266300, China)
 
    Abstract: The shell of gas-insulated metal-enclosed switchgear (GIS) is generally welded with aluminum alloy. Defects and faults related to weld cracking will directly affect the safe operation of GIS equipment and the power grid.Taking the 40.5 kV GIS circuit breaker as an example, this paper introduces the finite element simulation software based on ANSYS Workbench, and 3g acceleration cased during the transportation process is applied at the front, back, left and right of the circuit breaker shell respectively . The results show that under the action of the self-weight and terminal tension of the circuit breaker casing, there is a large stress concentration at the root of the rib weld in the left 3g acceleration condition. The maximum value is greater than the tensile strength of the material and the structure is not safe. It can cause cracking and air leakage of the casing. Through simulation analysis, the weak points of the circuit breaker shell structure design are found, the structural improvement of the weak points is targeted, and the structural strength of the whole shell is strengthened through a more reasonable structural design, which provides a reliable operation for the combined electrical equipment. The guarantee also shows the importance of structural design simulation analysis during the shell design process.
    Key words: GIS; circuit breaker shell; ANSYS Workbench; structural design
 
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