Flange clamp and method of sealing
    51.
    发明公开
    Flange clamp and method of sealing 失效
    法兰夹具和密封过程。

    公开(公告)号:EP0029338A2

    公开(公告)日:1981-05-27

    申请号:EP80304039.3

    申请日:1980-11-12

    IPC分类号: F16L55/16

    摘要: A clamp is provided to seal the gap between a pair of flanges (8) of connected sections of pipe (7) when a gasket (10) between the pipe sections fails. The sealing clamp comprises a pair of half-rings (1) incorporation rectangular grooves (3) which receive a lead sealing insert (4) formed with a tapered face (6) opposite that which is received in the groove (3). The half-rings (1) have terminal lugs bored to receive bolts by means of which the clamp can be tightened about the flanges (8), with the result that the insert (4) is distorted to form an effective annular seal for the gap between the flanges (8). The tapered face (6) ensures that the clamp is self-centering and that the clamp is not likely to be displaced sideways if subjected to an accidental blow. Pre-drilled holes (13) in the half-rings (1) can be continued through the insert (4) to enable a sealing compound to be injected.

    PIPE CLAMP DEVICE
    55.
    发明公开
    PIPE CLAMP DEVICE 有权
    管部SCHELL

    公开(公告)号:EP2510274A2

    公开(公告)日:2012-10-17

    申请号:EP10801447.3

    申请日:2010-12-07

    申请人: Subsea 7 Limited

    发明人: VU, Dan

    摘要: A pipe clamp device (1) comprising first (2) and second portions (3) connected together at a hinge (5). At least one portion is adapted to move pivotally around the hinge (5) relative to the other portion, the first (2) and second portions (3) being adapted to co-operate with one another to close around and at least partially encircle a pipe (p) to be clamped. The pipe clamp device (1) has securing members (6) to secure the first (2) and second portions (3) in a clamped arrangement around the pipe (p). The pipe clamp device (1) has a sealing mechanism configured to seal between one of the first (2) and second portions (3) and the pipe (p), wherein the sealing mechanism comprises first and second seal devices housed in respective recesses (7), (8), (9) and defining a sealed chamber between the recessed first and second seal devices. A settable fluid is injected into the sealed chamber between the first and second seal devices. A method of using the clamp device (1) is also disclosed.

    METHOD AND APPARATUS FOR REPAIRING TUBULAR MEMBERS
    58.
    发明公开
    METHOD AND APPARATUS FOR REPAIRING TUBULAR MEMBERS 有权
    方法和设备维修管状部件

    公开(公告)号:EP2279368A1

    公开(公告)日:2011-02-02

    申请号:EP09724158.2

    申请日:2009-03-25

    IPC分类号: F16L1/26 F16L17/10 F16L55/175

    CPC分类号: F16L55/175 F16L1/26 F16L17/10

    摘要: The present invention provides an apparatus for repairing the outer sheath of a pipe, said apparatus comprising a sleeve (12) adapted to surround the pipe, sealing means (16) for establishing atleast two circumferential seals between the surface of the pipe and means (17, 18) for forcing a sealing solution against the surface of the pipe between the two circumferential seals, the arrangement being such that in use the sleeve is spaced from the outer sheath of the pipe to form a sealed annulus therebetween and a method of repairing an outer sheath of a pipe, said method comprising the steps of mounting a sleeve over the pipe to provide an annulus therebetween, securing the sleeve in place around the pipe, providing two circumferential seals between the sleeve and the pipe and forcing a sealing solution against the surface of the pipe between the two circumferential seals to form a pressure seal between the circumferential seals and sealing the annulus between the pipe and the sleeve.