公开(公告)号：WO1995002137A1

公开(公告)日：1995-01-19

申请号：PCT/CA1994000382

申请日：1994-07-07

Applicant: REVOLVE TECHNOLOGIES INC.

Inventor： REVOLVE TECHNOLOGIES INC. ,  PETERSON, Robert, Arvid ,  EVENSON, Robert, S. ,  BEAR, Clayton

IPC: F16J15/34

CPC classification number: F16J15/3412 ,  F16J15/3468 ,  F16J15/4472

Abstract: This invention relates to a lubricating film type gas seal having a stationary sealing ring (stator) with a radially extending sealing face and a rotating mating seal component (mating rotor) with a radially extending sealing face. The present seal has a reduced number of components and is greatly simplified from working seals described in prior art. The mating rotor is deliberately flexible, and hence it may distort (tilt) throughout an angular range during hydrostatic and hydrodynamic operation and is dependent on rotational speed, pressure, temperature and is also a function of its material and geometric properties. The stationary ring sealing face complies to and follows the angular distortion (tilting) of the mating rotor sealing face in a converging or diverging manner throughout the hydrostatic and hydrodynamic operational range. The flexibility of the stator is a function of its geometric and material properties. Mating rotor and stator flexibility is preferably matched (e.g. using Finite Element Analysis (FEA) techniques) to provide a system flexibility which produces optimum sealing performance. The mating rotor may possess multiple radial sealing surfaces as well as one or more cylindrical sealing surfaces. Initial mating rotor and/or stator seal face angular deflection may be introduced by applying stress and producing subsequent deformation of the structure by a mechanical means. This invention is particularly suited to the sealing of high pressure gas within large rotating equipment including but not limited to centrifugal gas compressors.

Abstract translation: 本发明涉及具有径向延伸密封面的固定密封环（定子）和具有径向延伸密封面的旋转配合密封部件（配合转子）的润滑膜型气体密封件。 本密封件具有减少的部件数量，并且从现有技术中描述的工作密封件大大简化。 配合转子是故意灵活的，因此在静水压力和流体动力学运行期间，它可能在整个角度范围内变形（倾斜），并且取决于转速，压力，温度，并且也是其材料和几何特性的函数。 静止环密封面在整个流体静力学和流体动力学操作范围内以会聚或发散的方式符合并遵循配合转子密封面的角度变形（倾斜）。 定子的灵活性是其几何和材料特性的函数。 配合转子和定子的柔性优选匹配（例如使用有限元分析（FEA）技术），以提供产生最佳密封性能的系统灵活性。 配合转子可以具有多个径向密封表面以及一个或多个圆柱形密封表面。 初始配合转子和/或定子密封面角度偏转可以通过施加应力并通过机械装置产生随后的结构变形来引入。 本发明特别适用于大型旋转设备内的高压气体的密封，包括但不限于离心式气体压缩机。