化工学报2026，Vol.77Issue(3)：1388-1399,12.DOI:10.11949/0438-1157.20250946
超高压阀弹簧蓄能密封圈密封性能仿真优化研究
Study on sealing performance optimization of spring-energized seals for ultra-high pressure valves
叶卫东 1董昊然 1冯子豪 1李大奇 1傅青云1
作者信息
- 1. 东北石油大学机械科学与工程学院,黑龙江 大庆 163318
- 折叠
摘要
Abstract
With the increase in the number of fracturing stages per well in shale oil operations,the requirements for fracturing valve sealing performance are becoming increasingly stringent.This study simulated the sealing performance of a spring-loaded seal(V-ring)in a fracturing valve under 105 MPa pressure.An evaluation method for the sealing performance of spring-energized seals is proposed based on contact pressure and sealing line length,the influence mechanism of key parameters on sealing performance is revealed,and structural parameters are optimized.The results indicate that in the simulation model,the presence or absence of a spring has less than a 2%impact on the sealing performance of the V-ring under ultra-high pressure.Pre-compression has a minimal effect on the sealing performance under ultra-high pressure but significantly increases the equivalent stress of the V-ring.Therefore,it is recommended to adopt the minimum pre-compression that satisfies wear compensation requirements.The optimized multi-lip V-ring exhibits significantly enhanced sealing performance,with a 32%increase in maximum contact pressure and a 93%increase in sealing line length compared to the single-lip design.Field applications show that the optimized V-ring can increase service life by 2.8 times and reduce the downtime rate from 18%to 3.2%.关键词
超高压/弹簧蓄能密封圈/密封性能/结构优化/接触压力/密封线Key words
ultra-high pressure/spring-energized seal/sealing performance/structural optimization/contact pressure/sealing line分类
能源科技引用本文复制引用
叶卫东,董昊然,冯子豪,李大奇,傅青云..超高压阀弹簧蓄能密封圈密封性能仿真优化研究[J].化工学报,2026,77(3):1388-1399,12.
