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17 条记录 (耗时 0.013 秒)

    LEAK DETECTION IN LIQUID CARRYING CONDUITS
    2.
    发明公开
    LEAK DETECTION IN LIQUID CARRYING CONDUITS 有权
    美味的文章中含液体的圆管

    公开(公告)号：EP1082593A1

    公开(公告)日：2001-03-14

    申请号：EP99942635.6

    申请日：1999-05-28

    申请人： I.P.R. Co.(21) Limited

    发明人： JAMIESON, Angus Lamberton,Trynach

    IPC分类号： G01M3/28

    CPC分类号： G01M3/2823 ,  G01M3/005

    摘要： Leaks (20) in a pipe (10) are detected by passing through the pipe (10) an apparatus (25) which includes large and small bodies (40, 42) each of which is provided with a pair of pressure sensors spaced in the direction of flows. The pressure signals are used to derive a measure of volumetric flow by deriving measures of pipe diameter and liquid velocity. The pressure signals (or one of them) also provide an indication of localised turbulence. The presence of a leak (20) is assumed by detection of an area of localised turbulence followed downstream by a reduced volumetric flow rate.

    PIPE LEAK DETECTION
    3.
    发明公开
    PIPE LEAK DETECTION 审中-公开
    LINE泄漏追踪

    公开(公告)号：EP1012558A1

    公开(公告)日：2000-06-28

    申请号：EP98939774.0

    申请日：1998-08-20

    申请人： BG plc

    发明人： ASHWORTH, Roger, Philip

    IPC分类号： G01M3/28 ,  G01M3/00

    CPC分类号： F16L55/44 ,  F16L2201/30 ,  G01M3/2823 ,  G01M3/2853

    摘要： A pipe leak testing arrangement includes a device (12) having a sealing bags (14 and 15) joined by coupling (16). The bags when inflated form a seal volume chamber (18). The bags may not form a perfect seal and leakage past then could occur when differential pressure is present. The remaining portion of the pipe forms a test volume chamber (19). A transducer (20) measures differential pressure between the chambers, and transducer (21) measures the test chamber pressure. Measured pressure information is used by control device to track pressure change and adjust the seal pressure so as to maintain equal pressures even if the test pressure decays due to pipe fracture. In an alternative arrangement two separate devices with associated circuitry are provided to facilitate two temporary seal pressure chambers with the test chamber therebetween.

    Method and assembly for pipe pressure testing
    5.
    发明公开
    Method and assembly for pipe pressure testing 审中-公开
    Verfahren und Anordnung zurRohrleitungsdruckprüfung

    公开(公告)号：EP2816341A1

    公开(公告)日：2014-12-24

    申请号：EP14173540.7

    申请日：2014-06-23

    申请人： STATS (UK) Limited

    发明人： Bowie, Angus George

    IPC分类号： G01N3/12 ,  F16L55/132 ,  F16L55/136

    CPC分类号： G01N3/12 ,  F16L55/132 ,  F16L55/136 ,  G01M3/2823 ,  G01M5/0025 ,  G01M5/0075

    摘要： A test tool assembly (10) for location in a section of pipe (12) comprises an isolation plug module (14) for isolating an upstream pipe section (16) from a downstream pipe section (18) and a test plug module (20) which permits a pressure test to be carried out on the upstream pipe section (16). The assembly (10) is configured so that a force acting on a seal arrangement of the test plug module (20) as a result of a test pressure applied in the pipe (12) is lower than a force required to maintain the seal between the seal arrangement and the pipe (12).

    摘要翻译： 用于位于管道（12）的部分中的测试工具组件（10）包括用于将上游管段（16）与下游管段（18）隔离的隔离塞模块（14）和测试插头模块（20） 这允许在上游管段（16）上进行压力测试。 组件（10）构造成使得由于在管道（12）中施加的测试压力而作用在测试塞模块（20）的密封装置上的力低于将密封件保持在管 密封装置和管道（12）。

    MEASURING LEAKAGE THROUGH DUCTS
    8.
    发明公开
    MEASURING LEAKAGE THROUGH DUCTS 审中-公开
    泄漏管线测量

    公开(公告)号：EP1121577A1

    公开(公告)日：2001-08-08

    申请号：EP99949237.4

    申请日：1999-10-15

    申请人： Lattice Intellectual Property Limited

    发明人： ASHWORTH, Roger Philip ,  ROWE, Stephen Antony

    IPC分类号： G01M3/28

    CPC分类号： G01M3/2823 ,  G01M3/2853

    摘要： A pipe leakage detection system includes an alongate flexible probe with a body portion (11) of sufficient length to pass along a pipe (12). Pairs of seals (16, 17 and 18, 19) define a seal volume with the inner pipe wall. An adjacent test region can then be used to determine leakage. A source of fluid pressure is applied to lines 26 and 28. With equal pressure in both the seal and test regions as indicated by manometer (32) no leak will occur around the seals. A deliberate outgoing flow rate is allowed from line 29 and any differential in flow, as detected by flowmeters (38 and 39), will indicate actual leakage rate.

    Vorrichtung zur Inspektion und Instandhaltung von Rohren
    9.
    发明公开
    Vorrichtung zur Inspektion und Instandhaltung von Rohren 失效

    公开(公告)号：EP0872680A2

    公开(公告)日：1998-10-21

    申请号：EP98250042.3

    申请日：1998-02-03

    申请人： Prof. Dr.-Ing. Stein & Partner GmbH

    发明人： Stein, Dietrich, Prof. Dr.-Ing.

    IPC分类号： F16L55/165 ,  F16L55/18

    CPC分类号： G01M3/022 ,  E03F7/12 ,  E03F9/00 ,  F16L55/26 ,  F16L2101/30 ,  G01M3/2823

    摘要： Die Erfindung bezieht sich auf eine Vorrichtung zur Inspektion und Instandhaltung von Rohren wie beispielsweise Abwasserkanälen und Abwasserleitungen.
    Die erfindungsgemäße Vorrichtung zeichnet sich durch Verspann- und Abdichtelemente (5) aus, die innerhalb des Rohres (4) eine Kammer (2) aufspannen, die seitlich dicht abschließend an die Rohrwandung (1) grenzt. Die Kammer erstreckt sich dabei jedoch lediglich über einen Teil des Querschnitts des Rohres, so daß ein Teil von dessen Querschnitt für den Abfluß anfallender Abwässer frei bleibt. Hierfür erstreckt sich ein Abdichtelement (8) zwischen den Verspannelementen, welches die Kammer gegenüber dem Rohrinnern abdichtet.

    摘要翻译： 在管道（4）内部的腔室（2）位于管道纵向方向上彼此相邻放置的至少两个夹紧元件（5）之间。 该腔室仅在管道横截面的一部分上延伸。 紧密地夹在管壁（1）的侧面上的密封元件（13）至少在介质流动方向上的室的后端固定到夹紧元件。 夹紧元件之间的密封元件（8）将腔室与管内部密封。 充气闭合元件（6）位于密封元件和管壁之间。 两个隔板壁（13）延伸超过管道横截面的一部分

    MULTI-SENSOR INSPECTION FOR IDENTIFICATION OF PRESSURIZED PIPE DEFECTS THAT LEAK
    10.
    发明公开
    MULTI-SENSOR INSPECTION FOR IDENTIFICATION OF PRESSURIZED PIPE DEFECTS THAT LEAK 审中-公开
    多媒体播放ZUR IDENTIFIZIERUNG VON LECKENDEN DRUCKROHRDEFEKTEN

    公开(公告)号：EP3130900A1

    公开(公告)日：2017-02-15

    申请号：EP15275241.6

    申请日：2015-11-26

    申请人： Electro Scan, Inc.

    发明人： HANSEN, Charles A. ,  GRABOWSKI, Mark

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

    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 (32), pressure sensor (52), and acoustic hydrophone (42) 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 (32), 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 (52) detects alterations in the pressure and flow field of the fluidic region in the area of a leak. The acoustic hydrophone (42) listens for the sound leaks in pressurize pipes may create. 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 pipe position is thus obtained.

    摘要翻译： 该系统利用电导率设备以及在通过电缆部署到待检查的管道内的探针内的相机（32），压力传感器（52）和声学水听器（42）。 当探头与电流可以通过的缺陷相邻时，探头完成电路回接地，从而产生变化的电流。 通过提供闭路视频数据馈送，并入电探头的相机（32）用于通过管道的检查和导航。 压力传感器（52）检测泄漏区域中流体区域的压力和流场的变化。 声学水听器（42）监听加压管道可能产生的声音泄漏。 检查装置连接到电缆，并通过发射管将测量的距离插入到管道中，通常在管道处于压力下。 因此获得多传感器数据与管道位置。