超高压高低温条件下节流阀Y形圈的影响因素分析
Analysis of Influencing Factors of Y-ring of Throttle Valve under Ultra-high Pressure,High and Low Temperature Conditions
冯春宇 1钱齐 1徐明军 2杨忠武 2谢齐3
作者信息
- 1. 西南石油大学机电工程学院,四川成都 610599
- 2. 塔里木油田分公司克拉采油气管理区,新疆库尔勒 841000
- 3. 中电锦江信息产业有限公司,四川成都 610051
- 折叠
摘要
为研究天然气设备中节流阀的Y形密封圈在超高压、高低温工况下的影响因素,选择PTFE及其4种改性材料作为密封材料,研究唇口过盈量、唇前角、唇后角对Y形密封圈静密封性能的影响.结果表明:Y形密封圈最大von Mises应力随唇口过盈量增加而减小,随唇前角和唇后角的增大先增加后减小;内唇最大接触应力随唇口过盈量、唇后角的增加而增大,随唇前角的增加先增大后减小.选取密封圈宽度、基体高度、唇尖高度、唇前角、唇后角5个参数,采用ISIGHT软件对各参数进行灵敏度分析.结果表明:密封圈宽度及基体高度对Y形密封圈最大Mises应力及内唇接触应力影响最大.通过多岛遗传算法获得密封圈的优化尺寸,通过试验验证理论设计结果.
Abstract
In order to study the influencing factors under the high and low temperature working conditions of the Y-rings under ultra-high pressure in natural gas equipment,PTFE and its four modified materials were selected as sealing materials,and the effect of the lip interference,lip angle and back lip angle on the static sealing performance of the Y-rings was analyzed.The results show that the maximum von Mises stress of the Y-ring decreases with the increase of lip in-terference,first increases and then decreases with the increase of lip angle and lip back angle.The maximum contact stress of the inner lip increases with the increase of lip interference and lip angle,and first increases and then decreases with the increase of lip back angle.Five parameters,including the width of the Y-ring,substrate height,lip tip height,lip front an-gle,and lip back angle,were selected,the sensitivity analysis of each parameter was conducted by ISIGHT software.It is found that the width of the sealing ring and the substrate height have the greatest impact on the maximum Mises stress and inner lip contact stress of the Y-ring.The optimal size of the Y-ring was obtained by multi-island genetic algorithm.and the theoretical design result was verified through experiments.
关键词
Y形密封圈/密封性能/节流阀/灵敏度分析/接触应力Key words
Y-ring/sealing performance/throttle valve/sensitivity analysis/contact stress引用本文复制引用
出版年
2024
NETL
NSTL
万方数据