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    Apparatus for testing or isolating a segment of pipe
    3.
    发明授权
    Apparatus for testing or isolating a segment of pipe 有权
    用于测试或隔离一段管道的装置

    公开(公告)号：US06467336B1

    公开(公告)日：2002-10-22

    申请号：US09631645

    申请日：2000-08-02

    申请人： Horst Gotowik

    发明人： Horst Gotowik

    IPC分类号： G01M328

    CPC分类号： G01M3/022 ,  G01M3/2823 ,  G01M3/2853 ,  G01M3/2861

    摘要： There is described a method and an apparatus for testing or isolating a section of pipe, the apparatus comprising a cylindrical mandrel for insertion into a section of pipe, the mandrel including at least one portion of progressively increasing diameter, and at least one seal disposed around the mandrel and actuatable in response to applied fluid pressure to move along the increasing diameter portion of the mandrel, causing the seal member to radially expand into sealing contact with an inner surface of the pipe.

    摘要翻译： 描述了一种用于测试或隔离管道部分的方法和装置，该装置包括用于插入管道的一部分的圆柱形心轴，心轴包括逐渐增加的直径的至少一部分，以及至少一个密封件周围设置 心轴，并且响应于所施加的流体压力可被致动以沿着芯轴的增加的直径部分移动，导致密封构件径向膨胀成与管的内表面密封接触。

    Method and device for detecting and locating leaks in buried pipelines
    4.
    发明授权
    Method and device for detecting and locating leaks in buried pipelines 失效
    用于检测和定位渗透管道中的泄漏的方法和装置

    公开(公告)号：US3817086A

    公开(公告)日：1974-06-18

    申请号：US21805972

    申请日：1972-01-17

    申请人： ELF UNION

    发明人： DORGEBRAY G

    IPC分类号： G01M3/00 ,  G01M3/28

    CPC分类号： G01M3/005 ,  F16L2101/30 ,  G01M3/2823

    摘要： A detection scraper piston which is moved with the flow of liquid transported by a pipeline is fitted with end cups defining an intermediate compartment within the pipeline bore, with an odometer for measuring the distance of travel and pressuresensing and measuring means. The method of leak detection consists in continuously measuring the displacement of the piston from a predetermined zero point as well as the difference between the pressure within the compartment and an intermediate pressure between those prevailing on the upstream and downstream sides of the piston.

    摘要翻译： 随着由管道输送的液体流动而移动的检测刮板活塞装配有在管道孔内限定中间隔室的端杯，其具有用于测量行程距离和压力感测和测量装置的里程计。

    Traveling valve
    5.
    发明授权
    Traveling valve 失效
    旅行阀

    公开(公告)号：US3690348A

    公开(公告)日：1972-09-12

    申请号：US3690348D

    申请日：1970-10-26

    申请人： LONE STAR STEEL CO

    发明人： PATTERSON BILLY R

    IPC分类号： F16L55/128 ,  G01M3/00 ,  G01M3/28 ,  F16L55/18

    CPC分类号： G01M3/005 ,  F16L55/1283 ,  F16L2101/30 ,  G01M3/2823

    摘要： The present invention comprises a novel pipeline valve transportable by pipeline fluid adapted for isolating pipeline sections to permit location of a leak, and to stop the flow of pipeline fluid. The invention also concerns a novel process for isolating sections of a pipeline to permit location of a leak. The novel valve contains means for controlling the flow of the pipeline fluid in the valve and for stopping the valve when desired. A drop in pipeline fluid pressure shows a leak in the pipeline section traversed by the valve.

    摘要翻译： 本发明包括一种可由管道流体输送的适用于隔离管道部分以允许定位泄漏并且停止管道流体流动的新型管道阀。 本发明还涉及用于隔离管道的部分以允许定位泄漏的新颖方法。 新颖的阀包含用于控制阀中管道流体的流动并在需要时停止阀的装置。 管道流体压力的下降显示在由阀门穿过的管道部分中的泄漏。

    MULTI-SENSOR INSPECTION FOR IDENTIFICATION OF PRESSURIZED PIPE DEFECTS THAT LEAK
    10.
    发明申请
    MULTI-SENSOR INSPECTION FOR IDENTIFICATION OF PRESSURIZED PIPE DEFECTS THAT LEAK 审中-公开

    公开(公告)号：US20180217023A1

    公开(公告)日：2018-08-02

    申请号：US15940577

    申请日：2018-03-29

    申请人： Electro Scan, Inc.

    发明人： Charles A. Hansen ,  Mark Grabowski

    IPC分类号： G01M3/40 ,  G01M3/28 ,  G01M5/00 ,  G01M3/38 ,  G01M3/24 ,  G01M3/18

    CPC分类号： G01M3/40 ,  G01M3/18 ,  G01M3/246 ,  G01M3/2823 ,  G01M3/38 ,  G01M5/0025 ,  G01M5/0083

    摘要： The system utilizes conductivity equipment as well as a camera, pressure sensor, and acoustic hydrophone within a probe deployed via cable into a pipe to be inspected. The probe completes an electric circuit back to ground when the probe is adjacent a defect through which electric currents can pass, thus producing varying electric current. The camera, incorporated into the electric probe, is utilized for both inspection and navigation through the pipe by providing a close-circuit video data feed. The pressure sensor detects alterations in the pressure and flow field of the fluidic region in the area of a leak. The acoustic hydrophone listens for the sound leaks in a pressurized pipeline. The inspection device is tethered to a cable and inserted a measured distance into the pipeline, typically with the pipeline under pressure, via a launch tube. Multi-sensor data versus pipeline position is thus obtained.