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2. 发明公开

EP2226534A1 Pressure balanced shaft seal assembly 有权
标题翻译： Druckentlastete Wellendichtungsanordnung
公开(公告)号：EP2226534A1
公开(公告)日：2010-09-08
申请号：EP10250376.0
申请日：2010-03-03
申请人： Inpro/Seal LLC
发明人： Orlowski, David C. , Hoelhe, Neil F.
IPC分类号： F16J15/44 , F16J15/447 , F16J15/40
CPC分类号： F16J15/40 , F16J15/187 , F16J15/441 , F16J15/4472 , F16J15/54
摘要： A pressure balanced shaft seal assembly that allows a seal to dynamically respond to angular or radial misalignment of a shaft is disclosed. The pressure balanced shaft seal assembly includes a fixed stator (2), a floating stator (4), and a labyrinth seal (3). In one embodiment, the floating stator (4) and labyrinth seal (3) are mounted within an annular groove formed in the fixed stator (2) such that the floating stator and labyrinth seal may move a predetermined amount in the radial direction with respect to the fixed stator. A spherical interface (11) between the labyrinth seal and floating stator may allow the labyrinth seal to pivot with respect to the floating stator during angular misalignment of a shaft around which the pressure balanced shaft seal assembly is mounted. A pressure balancing annular channel (46) formed in the floating stator allows pressurized seal fluid to balance the axial pressure exerted on the floating stator by the process fluid.
摘要翻译：公开了一种压力平衡轴密封组件，其允许密封件动态地响应于轴的角度或径向未对准。压力平衡轴密封组件包括固定定子（2），浮动定子（4）和迷宫式密封件（3）。在一个实施例中，浮动定子（4）和迷宫式密封件（3）安装在形成在固定定子（2）中的环形槽内，使得浮动定子和迷宫式密封件可相对于径向方向移动预定量固定定子。在迷宫式密封件和浮动定子之间的球形接口（11）可以允许迷宫式密封件相对于浮动定子枢轴转动，该轴在安装压力平衡轴密封组件的轴的角度不对准中。形成在浮动定子中的压力平衡环形通道（46）允许加压密封流体平衡由过程流体施加在浮动定子上的轴向压力。

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