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<p>To investigate the coupling effects of porous media and lubricating film on hybrid mechanical seal performance, a three-dimensional Elasto-hydrodynamic (EHD) model is proposed. This model integrates the fluid-solid interaction of porous matrix and T-groove on the seal ring. The elastic deformation of sealing surfaces (especially the porous region) and the seepage behavior of lubricant in porous matrix are computed based on the finite element method (FEM), while the flow characteristics of the sealing medium in the sealing gap and the porous matrix are analyzed. The results indicate that face deformation alters the fluid flow path of the outer diameter of the sealing gap, which is not conducive to the mass transfer of the sealing medium in the sealing chamber, the sealing gap and the porous matrix. The permeability and depth of the porous matrix significantly influence the mass transfer behavior between the porous matrix and lubricating film, resulting in larger film thickness and leakage rate. These findings provide key design insights for controlling leakage and enhancing sealing efficiency in porous mechanical seal.</p>

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Mass transfer of a hybrid porous T-groove mechanical face seal under Elasto-hydrodynamic model

  • 期刊论文

  • 发表日期：

    2025年5月14日

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  • Xueping Li,
  • Xiangkai Meng,
  • Yangyang Liang,
  • Jinbo Jiang,
  • Xudong Peng

摘要

To investigate the coupling effects of porous media and lubricating film on hybrid mechanical seal performance, a three-dimensional Elasto-hydrodynamic (EHD) model is proposed. This model integrates the fluid-solid interaction of porous matrix and T-groove on the seal ring. The elastic deformation of sealing surfaces (especially the porous region) and the seepage behavior of lubricant in porous matrix are computed based on the finite element method (FEM), while the flow characteristics of the sealing medium in the sealing gap and the porous matrix are analyzed. The results indicate that face deformation alters the fluid flow path of the outer diameter of the sealing gap, which is not conducive to the mass transfer of the sealing medium in the sealing chamber, the sealing gap and the porous matrix. The permeability and depth of the porous matrix significantly influence the mass transfer behavior between the porous matrix and lubricating film, resulting in larger film thickness and leakage rate. These findings provide key design insights for controlling leakage and enhancing sealing efficiency in porous mechanical seal.