[1]李福荣.关于充气柜加强筋的设计及优化[J].高压电器,2020,56(02):226-231.[doi:10.13296/j.1001-1609.hva.2020.02.034 ]
 LI Furong.Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF6 Gas Insulated Ring-network Cabinet[J].High Voltage Apparatus,2020,56(02):226-231.[doi:10.13296/j.1001-1609.hva.2020.02.034 ]
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关于充气柜加强筋的设计及优化()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年02期
页码:
226-231
栏目:
技术讨论
出版日期:
2020-02-14

文章信息/Info

Title:
Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF6 Gas Insulated Ring-network Cabinet
作者:
李福荣
(中石化石油工程设计有限公司, 山东 东营 257026)
Author(s):
LI Furong
(Sinopec Petroleum Engineering Design Co., Ltd., Shandong Dongying 257026, China)
关键词:
气体绝缘 环网柜 SF6 强度优化设计 Ansys
Keywords:
gas insulation ring-network cabinet SF6 strength optimization design Ansys
DOI:
10.13296/j.1001-1609.hva.2020.02.034
摘要:
文中针对40.5 kV的SF6气体绝缘环网柜的断路器气箱充气后变形量过大,焊缝局部集中应力超过材料许用应力,存在漏气风险的问题。通过计算加强筋的截面惯性矩来分析加强筋的设计对气箱结构强度的影响,然后采用Ansys软件对现有断路器气箱进行结构强度仿真分析,得出现有断路器气箱的变形量以及局部应力分布情况。在不增加加强筋数量、不调整加强筋焊接位置的原则下,改变断路器气箱加强筋的设计方式,通过多次仿真分析及优化设计,得出一种结构强度较好的断路器气箱的加强筋设计及布局方案,减小断路器气箱的变形量,并且使断路器气箱各个部位的局部应力在材料许用范围内。
Abstract:
This study is aimed at the problems that the gas box of circuit breaker in a 40.5 kV SF6 gas insulated ring-network cabinet suffers excessive deformation and local stress concentration of its weld exceeds the allowable stress after inflation, which will result in gas leakage risk. The sectional inertia moment of the stiffener is calculated to analyze the influence of the stiffener design on the strength of the gas box. Then the software Ansys is used to perform structural strength simulation analysis of the gas box to obtain its deformation and the local stress distribution. Without increasing the number of the stiffeners and adjusting their welding positions, an optimized stiffener design and layout scheme of the gas box with better structural strength are achieved, which can reduce the deformation of the air box and make the local stress of each part of the gas box within the allowable stress range of the material.

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备注/Memo

备注/Memo:
收稿日期:2019-08-16; 修回日期:2019-10-27李福荣(1968—),女,高级工程师,主要研究油气田和管道工艺的电力设计。
更新日期/Last Update: 2020-02-14