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山东大学学报 (工学版) ›› 2026, Vol. 56 ›› Issue (4): 188-196.doi: 10.6040/j.issn.1672-3961.0.2025.012

• 机械工程 • 上一篇    

深水油气水下测试树液动高压球阀硬密封机构优化

张茂奇1,唐洋1*,莫丽1,舒将军2,3,魏剑飞4,谭振兴4   

  1. 1.西南石油大学机电工程学院, 四川 成都 610500;2.中煤科工集团重庆研究院有限公司, 重庆 400039;3.瓦斯灾害防控国家重点实验室, 重庆 400039;4.中海艾普油气测试(天津)有限公司, 天津 300459
  • 发布日期:2026-08-12
  • 作者简介:张茂奇(2002— ),男,四川资阳人,硕士研究生,主要研究方向为深水油气装备设计与仿真. E-mail:3588744087@qq.com. *通信作者简介:唐洋(1988—),男,四川蓬溪人,教授,硕士生导师,博士,主要研究方向为油气装备现代设计与仿真. E-mail:tangyanggreat@126.com
  • 基金资助:
    四川省自然科学基金资助项目(2025ZNSFSC0442)

Optimization of hard seal mechanism of hydrodynamic high-pressure ball valve for deepwater oil and gas underwater test tree

Zhang Maoqi1, Tang Yang1*, Mo Li1, Shu Jiangjun2,3, Wei Jianfei4, Tan Zhenxing4   

  1. Zhang Maoqi1, Tang Yang1*, Mo Li1, Shu Jiangjun2, 3, Wei Jianfei4, Tan Zhenxing4(1. School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
    2. China Coal Technology &
    Engineering Group Chongqing Research Institute Co., Chongqing 400039, China;
    3. State Key Laboratory of Gas Disaster Prevention and Control, Chongqing 400039, China;
    4. China OceanAipu Oil &
    Gas Testing(Tianjin)Co., Tianjin 300459, China
  • Published:2026-08-12

摘要： 针对高压球阀金属硬密封的密封机理及结构优化难题,建立球阀主密封副有限元仿真模型,分析结构参数和材料参数对密封面Mises应力及密封比压的影响。采用Box-Behnken试验设计与响应曲面法,构建密封面破坏率和有效接触率数学模型并进行多目标优化。研究结果表明,密封面宽度、密封面外径与阀座外径间距、摩擦系数对密封性能影响最大。当三者分别为14.18 mm、1.5 mm、0.198时,密封面破坏率降低至6.18%,有效接触率提升至30.35%。所提优化设计方案可显著提升高压球阀密封可靠性,为深水油气工程应用提供理论指导。

关键词: 水下测试树, 高压球阀, 金属硬密封, 密封机理与可靠性, 有限元分析, 优化

Abstract: To address the challenges in sealing mechanism and structural optimization of metal hard seals in high-pressure ball valves, a finite element simulation model of the main sealing pair was established. The study analyzed the effects of structural and material parameters on the Mises stress and sealing pressure on the sealing surfaces.Using Box-Behnken experimental design and response surface methodology, mathematical models for seal failure rate and effective contact rate were constructed and subjected to multi-objective optimization.Research findings indicate that the sealing face width, the distance between the sealing face outer diameter and the valve seat outer diameter, and the friction coefficient exert the greatest influence on sealing performance. When these three parameters are set to 14.18 mm, 1.5 mm, and 0.198 respectively, the sealing face failure rate decreases to 6.18%, while the effective contact rate increases to 30.35%. The proposed optimization design significantly enhances the sealing reliability of high-pressure ball valves and provides theoretical guidance for deepwater oil and gas engineering applications.

Key words: underwater test tree, high pressure ball valve, metal hard seal, sealing mechanism and reliability, finite element analysis, optimization

中图分类号: 

  • TB42
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