Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF<sub>6</sub> Gas Insulated Ring-network Cabinet

LI Furong

doi:10.13296/j.1001-1609.hva.2020.02.034

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Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF₆ Gas Insulated Ring-network Cabinet

更新时间：2025-04-26

- Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF₆ Gas Insulated Ring-network Cabinet
- High VoltageApparatus Vol. 56, Issue 2, Pages: 226-231(2020)
- 作者机构：
  
  中石化石油工程设计有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.02.034
  CLC： TM643
- Published：2020
- 稿件说明：
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[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.

LI Furong. Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF₆ Gas Insulated Ring-network Cabinet[J]. High voltageapparatus, 2020, 56(2): 226-231.
[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 voltageapparatus, 2020, 56(2): 226-231. 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 SF

gas insulated ringnetwork 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 an

d 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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Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF6 Gas Insulated Ring-network Cabinet

DOI：10.13296/j.1001-1609.hva.2020.02.034

摘要

Abstract

关键词

Keywords

references

Design and Optimization of Stiffener of Circuit-breaker’s Gas Box in a SF₆ Gas Insulated Ring-network Cabinet