Underwater pipelines
    5.
    发明授权
    Underwater pipelines 失效
    水下管道

    公开(公告)号:US4257719A

    公开(公告)日:1981-03-24

    申请号:US897126

    申请日:1978-04-17

    IPC分类号: F16L1/16 F16L55/13 F16L1/04

    摘要: A method of recovering an underwater pipe comprises inserting a recovery line attachment into the pipe, explosively deforming the pipe so that it is mechanically secured to the attachment, and bringing the pipe to the surface by means of a lifting line secured to the attachment. The attachment may include a body insertable into the end of the pipe and a portion having a generally conical surface so that it forms a water tight seal with the pipe when the pipe is explosively deformed into engagement with it.

    摘要翻译: 回收水下管道的方法包括将回收管线附件插入管道中,使管道爆炸变形,使其机械地固定到附件,并通过固定在附件上的提升线将管道带到表面。 附件可以包括可插入到管的端部的主体和具有大致圆锥形表面的部分,使得当管子被爆炸变形成与其接合时,其与管道形成防水密封。