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    • 13. 发明公开
    • Apparatus for near vertical laying of pipeline
    • Vorrichtung zum fast senkrechten verlegen von Rohrleitungen。
    • EP0657670A2
    • 1995-06-14
    • EP94305071.6
    • 1994-07-11
    • McDERMOTT INTERNATIONAL, INC.
    • Brown, Robert W.Legleux, Michael JosephWilkins, Jesse Ray
    • F16L1/15F16L1/20
    • F16L1/19F16L1/15F16L1/20
    • A support frame (12) and movable deck (13) on a lay vessel (24) support a tower (14) at the desired angle for pipe laying. The tower (14) has a travel block (16) that is movable between open and closed positions for receiving a pipe section and supporting the weight of the pipe or pipeline. The travel block (16) can move along the length of the tower (14) for raising or lowering the pipe or pipeline. A pedestal (18) that is movable between open and closed positions for receiving a pipe section and supporting the weight of the pipeline is positioned near the bottom of the tower (14) and arranged to transfer the weight of the pipeline from the travel block (16) to the pedestal (18) without the need to open the travel block (16). A strongback (20) with adjustable clamps is used to grasp a pipe section from a ready rack (64) and transfer the pipe section into the tower (14) for addition of the pipe section to the pipeline. The strongback (20) is guided into and up the tower (14) by rails. A stinger (22) extends down from the lower end of the tower (14) and is provided with clamps to grip the pipeline during operations. The main portion of the stinger (22) may be pivoted up adjacent the lay vessel (24) when pipe laying operations are not in progress.
    • 搁置容器(24)上的支撑框架(12)和可移动甲板(13)以期望的角度支撑塔架(14)以用于铺管管道。 塔(14)具有可在打开和关闭位置之间移动的行进块(16),用于接收管段并支撑管道或管道的重量。 移动块(16)可以沿着塔架(14)的长度移动,以升高或降低管道或管道。 可在打开和关闭位置之间移动以接收管段并支撑管道的重量的基座(18)位于塔架(14)的底部附近,并且布置成将管道的重量从行程块 16)到基座(18),而不需要打开行程块(16)。 用可调节夹具的强力(20)用于从准备的机架(64)抓住管道部分,并将管道部分转移到塔架(14)中,以将管道部分添加到管道中。 强力(20)由导轨引导进入塔架(14)。 托架(22)从塔架(14)的下端向下延伸,并且在操作期间设置有夹具以夹紧管道。 当管道铺设操作未进行时,托管架(22)的主要部分可绕邻近船舶(24)枢转。