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    • 1. 发明申请
    • HIGH PRESSURE PRODUCT SWIVEL
    • 高压产品SWIVEL
    • WO0208649A3
    • 2002-05-10
    • PCT/US0123450
    • 2001-07-25
    • FMC TECHNOLOGIES
    • MONTGOMERY MARSHALL NROY STEPHANE
    • A61M39/00F16L39/04F16L39/06F16L35/00F16L39/00
    • F16L39/06F16L39/04Y10S285/90
    • A production swivel (10) with passive control of dynamic seal gap (66) width using internal swivel pressure. The swivel (10) includes inner and outer housings (16, 12) with a middle housing (17) which transfers component deformation due to fluid pressure from the dynamic sealing interface (64) to the static sealing interface (65). The outer housing and inner housing (16, 12) rotate together, but the outer housing (12) is free to expand radially outward from the middle housing (17) with increasing fluid pressure. A floating riser spool (60A) is pressure balanced at the connection to the inner housing (16) and to a fixed swivel stack base (54). Swivels (10a, 10B) are stacked with a swivel connector/spool (52) and upper and lower mounting rings (46, 48) cooperatively dimensioned so that access to seals (63, 64) can be obtained while the swivels (10a, 10b) remained stacked without the use of overhead cranes or other lifting points than the swivel being serviced.
    • 使用内部旋转压力,动态密封间隙(66)宽度被动控制的生产旋转件(10)。 旋转件(10)包括具有中间壳体(17)的内壳体和外壳体(16,12),所述中间壳体将流体压力的部件变形从动态密封界面(64)传递到静态密封界面(65)。 外壳体和内壳体(16,12)一起旋转,但是外壳体(12)随着流体压力的增加而从中间壳体(17)径向向外扩张。 浮动提升管卷轴(60A)在与内壳体(16)的连接处和固定的旋转堆叠基座(54)处被压力平衡。 旋转件(10a,10B)与旋转连接器/卷轴(52)堆叠,并且上部和下部安装环(46,48)协调地确定尺寸,使得可以在旋转件(10a,10b)处获得密封件(63,64) )没有使用架空起重机或其他提升点,而不是使用旋转架。