A swivel seal assembly, a method for increasing the life of a swivel seal and a swivel
    1.
    发明公开
    A swivel seal assembly, a method for increasing the life of a swivel seal and a swivel 审中-公开
    旋转密封组件和用于延伸的旋转密封件的寿命的方法和旋转组件

    公开(公告)号:EP1469243A1

    公开(公告)日:2004-10-20

    申请号:EP04252151.8

    申请日:2004-04-13

    IPC分类号: F16L17/10 F16L27/08

    摘要: Methods and apparatus for providing enhanced seal life of a swivel seal assembly by decreasing the effective differential pressure across a given rotating seal. The differential pressure is decreased by providing a pressurised fluid on the low-pressure side of the seal at a predetermined fraction of the operating pressure of the swivel seal assembly. A preferred swivel seal assembly (10) utilises a washpipe (14) and a packing box (18) that are rigidly affixed to their respective conduits (11,12) such that misalignment and dynamic run-out is compensated for in the gap between the washpipe (14) and the packing box (18). A control system (40) monitors and regulates the pressurised fluid supplied to the assembly (10).

    摘要翻译: 的方法和装置通过降低在给定旋转密封的有效的压力差提供一旋转密封组件的增强密封件的寿命。 压差是通过在旋转的密封组件的操作压力的预定分数提供在密封件的低压侧的增压流体减少。 优选的旋转密封组件(10)utilisés一个冲洗管(14)和一个包装盒(18)并刚性地固定到它们的导管respectivement(11,12)搜索没有错位和动态跳动在之间的间隙进行补偿 冲洗管(14)和所述包装盒(18)。 一种控制系统(40),监视并调节供给到所述组件(10)的加压流体。