超高压石油化工阀门密封结构优化与验证  

Optimization and Verification of Sealing Structure of Ultra-High Pressure Petrochemical Valve

作　　者：张峰铭 ZHANG Fengming

机构地区：[1]中海油石化工程有限公司,山东青岛266100

出　　处：《化工设计通讯》2025年第4期108-110,共3页Chemical Engineering Design Communications

摘　　要：针对超高压石油化工阀门密封结构进行优化设计和实验验证。通过有限元分析和流体动力学仿真,优化阀座和阀芯的几何结构,采用新型纳米陶瓷复合材料和先进表面处理技术提高密封面的性能。引入创新的辅助密封元件设计,显著提升密封可靠性。采用多项实验验证方法,包括高压循环测试、精密泄漏检测和加速寿命评估,全面验证优化设计的有效性。结果表明,优化后的密封结构最大工作压力提高至250 MPa,泄漏率降低99%,使用寿命延长60%。在-40~250℃的温度范围内,对多种介质均表现出优异的适应性。The sealing structure of ultra-high pressure petrochemical valve was optimized and verified by experiments.Through fi nite element analysis and fl uid dynamics simulation,the geometric structure of the valve seat and spool is optimized,and the performance of the sealing surface is improved by using new nano-ceramic composite materials and advanced surface treatment technology.The introduction of innovative auxiliary seal element design signifi cantly improves seal reliability.A number of experimental validation methods,including high-pressure cycle testing,precision leak detection and accelerated life assessment,were used to fully verify the effectiveness of the optimized design.The results show that the maximum working pressure of the optimized sealing structure is increased to 250 MPa,the leakage rate is reduced by 99%,and the service life is extended by 60%.In the temperature range of-40℃to 250℃,it shows excellent adaptability to a variety of media.

关 键 词：超高压阀门 密封结构 结构优化 有限元分析 实验验证 

分 类 号：TE65[石油与天然气工程—油气加工工程]