摘要
为改善双Y形密封圈在井底高温、高压工况下的密封性能,建立双Y形密封圈的二维轴对称模型,采用有限元分析软件ANSYS分析初始压缩量、润滑油压力以及润滑油与泥浆压差对双Y形密封圈密封面处接触压力的影响。结果表明:密封面处的最大接触压力随着润滑油压力的增加而增加,在不同润滑油压力下,最大接触压力始终大于润滑油压力,能够形成良好密封;随着初始压缩量的增加,最大接触压力逐渐减小,因此在保证形成良好密封的前提下,适当减小初始压缩量可以提高密封性能;随着压差的增加,最大接触应力先增加后减小最后趋于平缓。基于响应曲面法,以获得接触面最大接触压力为优化目标,对双Y形密封圈进行优化设计,得到其最佳优化组合方案。
The two dimensional axis symmetric finite element model of double Y shape seal ring was established.The effects of initial compression,lubricating oil pressures as well as the pressure difference between lubricating oil and slurry on its maximum contact pressure were analyzed.The results show that the maximum contact pressure of sealing face of double Y shape seal ring is increased with the increasing of lubricating oil pressure,and it is always greater than the lubri cating oil pressure under different lubricating oil pressure conditions,as a result,a good seal can be formed.With the increasing of the initial compression,the maximum contact pressure is decreased gradually,so the sealing performance can be improved by reducing the initial compression properly on the premise of ensuring a good seal.With the increasing of the pressure difference,the maximum contact pressure is increased first,then decreased,and finally tended to be stable.With the maximum contact pressure of sealing surface as the optimization target,the optimal parameters combination scheme of the double Y shape seal ring was obtained based on the response surface method.
作者
张晓东
韩志杰
张毅
ZHANG Xiaodong;HAN Zhijie;ZHANG Yi(School of Mechanical Engineering,Southwest Petroleum University,Chengdu Sichuan 610500,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2019年第5期104-108,共5页
Lubrication Engineering
基金
石油天然气装备教育部重点实验室(西南石油大学)项目(OGE201702-12)
关键词
双Y形密封圈
接触压力
响应曲面法
优化设计
double Y shape seal ring
contact pressure
response surface method
optimal design
作者简介
韩志杰(1994—),男,硕士研究生,研究方向为井下工具与深井动密封.E-mail:596439514@qq.com.
