Deformation characteristics of end face for high-pressure mechanical seals under different boundary designs

GAO Tianrui; ZHAO Wenjing; GUO Shibo; MENG Xiangkai; PENG Xudong

doi:10.11949/0438-1157.20260441

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Deformation characteristics of end face for high-pressure mechanical seals under different boundary designs

更新时间：2026-06-03

- Deformation characteristics of end face for high-pressure mechanical seals under different boundary designs
- CIESC Journal (2026)
- 作者机构：
  
  浙江工业大学机械工程学院，浙江杭州 310023
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260441
  CLC： TH117.2
- Received：31 March 2026，
  
  Revised：2026-06-02，
  
  Accepted：03 June 2026，
- 稿件说明：
移动端阅览
GAO Tianrui, ZHAO Wenjing, GUO Shibo, et al. Deformation characteristics of end face for high-pressure mechanical seals under different boundary designs[J/OL]. CIESC Journal, 2026.
DOI：

GAO Tianrui, ZHAO Wenjing, GUO Shibo, et al. Deformation characteristics of end face for high-pressure mechanical seals under different boundary designs[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260441.

摘要

为满足涉海装备对低功耗与低泄漏机械密封的严苛需求，以高压接触式机械密封为研究对象，综合考虑多维辅助密封布置方式以及补偿环与推环间的接触行为，建立高压工况下的热弹流体动力润滑（TEHD）模型，采用有限元法（FEM）求解多物理场耦合控制方程，系统研究了不同边界设计下的密封结构及其材料配副对端面变形特性和密封性能的影响。研究结果表明：合理构建不同边界设计下的密封结构，可以有效减小端面相对变形量，抑制端面间隙的过度收敛或发散；III-C结构软硬材料配副能够有效结合平行流道与收敛流道的双重优势，在高压状态下可保证良好润滑的同时表现出更优的综合性能。该研究成果可为高压工况下机械密封的结构优化与可靠性提升提供重要理论依据。

Abstract

To meet the stringent requirements of marine-related equipment for low power consumption and low-leakage mechanical seals

this study focuses on high-pressure contact mechanical seals. A thermal-elastic-hydrodynamic (TEHD) lubrication model under high-pressure conditions was established by comprehensively considering the effects of multi-dimensional secondary seal arrangement and the contact behavior between the compensating ring and the pusher ring. The finite element method (FEM) was employed to solve the multi-physics coupling equations. A systematic investigation was conducted on the effects of seal structures with different boundary designs and material pairs on end face deformation characteristics and sealing performance.The results indicate that reasonable design of sealing structures under different boundary configurations can effectively reduce the relative deformation of the end faces and suppress excessive convergence or divergence of the end face. The soft-hard material pairing of structure III-C successfully combines the advantages of parallel and convergent flow channels

ensuring good lubrication under high-pressure conditions while exhibiting superior comprehensive performance.These findings provide an important theoretical basis for structural optimization and reliability enhancement of mechanical seals under high-pressure conditions.

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references

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