• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A wheel probe for use on a pipe inspection vehicle. The wheel probe romprises an annular outer rim (22) with a polyurethane tyre (32) mounted on a hub assembly which, with the hub, defines a fluid-tight chamber containing an acoustic coupling fluid. A number of ultrasonic transducers are located inside the chamber and are positioned close to the inside circumferential surface of the rim (22). The hub assembly is carried by a spring loaded carriage which is secured to the vehicle. The wheel probe includes a guide guide wheel (39) on each side. The guide wheels (39) are carried by the carriage but are moveable bodily relative to the centre of the hub assembly, and when deflected, they operate on the assembly to move the wheel probe to ensure that the outer rim (22) of the wheel is correctly aligned relative to the pipe (11). The wheel probe has a number of shields (33) spaced around its periphery. The gaps between the shields define operating "windows" through which the rim (22) of the wheel probe projects to contact the pipe (11). The shields (33) are located close to the bore of the pipe (11) so that if the probe encoun ters an obstruction the shield (33) snags on the obstruction, is pulled between the rim (22) and the pipe (11) to lift the where over the obstruction, and turns on to the next operating win dow". Cam followers (37 a) are provided to hold the shie ns (33) in position.
    公开号:SU1195925A3
    申请号:SU782660348
    申请日:1978-08-22
    公开日:1985-11-30
    发明作者:Брайан Балл Реджинальд；Даффилл Колин；Артур Усмар Рональд
    申请人:Бритиш Газ Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to devices for indestructible inspection of pipe walls, for example, for measuring thickness, detecting cracks and other defects in a pipe wall.
    The aim of the invention is to improve the measurement accuracy by maintaining an adequate acoustic connection of the probe with the pipe wall.
    FIG. 1 shows a probe for ultrasonic testing of pipeline walls in the working position, general view; in fig. 2 - the same, top view; in fig. 3 is a section A-A in FIG. 2 in FIG. 4 is a section BB in FIG. 3
    The zoid consists of a hollow wheel 2 mounted on the carriage 1, containing a rigid rim 3 that is permeable to ultrasound with end elements 4 mounted on bearings 5 placed on axis 6.
    On the periphery, the hard rim is provided with an elastic sound-conducting tire 7 and is enclosed in a protective screen 8, which rotates freely on bearings 9 fixed in the hollow wheel 2 by means of njiacTHH 10. The protective screen 8 is made with three windows And through which the hollow wheel 2 contacts the wall of the studied pipes 12. The edges of each window And have a shape that ensures the absence of 12 unevenness on the inner wall of the pipe, for example, welding seams, contact of the pipe only with the bus 7 (through the bottom window 11), excluding contact with the pipe of the screen 8.
    In order to preserve the specified relative position of one of the windows of the walls of the pipe 12, the screen B along the edges has a series of recesses 13 in which the following zlemeits of the cam mechanism 14 are placed, as well as the teeth (and undercuts) 15.
    In the cavity of wheel 2 there is a sound-conducting medium, for example, a mixture of glycerin and water, which contains carbon particles, for example, graphite 1B of molybdenum disulfide. The particle size is chosen so as not to attenuate the sound of the frequency created by the sensors 16, and at the same time attenuate the sounds they receive unwanted frequencies.
    The sensors 16 ultrasound mounted on a nylon block 17, pressed against the inner surface of the rim 3
    by means of a spring 18 fixed between the upper bracket 19 and the finger 20 in the central unit 21, through which the rods freely pass
    22 connected to the bottom bracket
    23 carrying the nylon block 17 with the possibility of linear movement in the plane of the cross section of the pipe 12. The shape of the block 17 corresponds to the inner surface of the rim 3 in order to ensure the ultrasound from the sensors 16 into the pipe wall
    12 at a certain angle and penetration of the sound-conducting medium into all the gaps between the sensors 16 and the block 17, and also between the block 17 and the rim 3.
    Electrical leads (not shown) from sensors 16 are drilled (not shown) in axis 6 and through seals 24 to prevent leakage of the sound-conducting medium from the cavity of wheel 2.
    The carriage 1 of the hollow wheel 2 consists of lateral plates 26 rigidly connected to the hub 25 of axis 6, connected by a transverse beam 27, on which axis 28 is perpendicular to axis 6, and a rotary unit is mounted on bearings .29 in longitudinal bearings 30 of which are mounted movable shafts 3I, supporting supporting element 32, rigidly attached to the vehicle (not shown) during transportation of the probe through the pipeline.
    ;.
    Between the supporting element 32 and the rotary unit, springs 33, covering the shafts 31, are installed, providing 1e through the swivel block, the transverse beam 27, the side plates 26, the hubs 25 and the axis 6 pressing the hollow wheel 2 against the wall of the pipe 12.
    On the side plates 26 of the carriage 1 in / bearings 34, the ends of the axis 35 are mounted, and the rotary shoulders 36 of the metal guide wheels 37 are fixed, the outer diameter of which is smaller than the diameter of the hollow wheel 2, and the inner diameter is larger than the outer diameter of the hubs 25 of axis 6, which provides direction wheels 37, the possibility of reciprocating movement in a plane perpendicular to the axis 6. 3. The rotation of the rim of the guide wheels 3.7 is carried out in bearings 38 mounted in plates 39 attached to pivoting arms 36, elastically connected by means of springs 40 with end plates 26 dp of exploring the pipeline, the probe is assembled into the pipe 12 and is installed symmetrically about its longitudinal and transverse axis. This is achieved by turning the carriage around the axis 28. In this position, the sound guide of the tire 7 of the hollow wheel 2 under the influence of springs 33 through the lower window 11 in the protective screen is pressed tightly against the wall of the pipe 12, except the presence of gas on the surface of the wheel-pipe interface, which ensures good acoustic coupling between them. In a properly installed position, the probe contacts with the pipe 12 at three points of contact: the guide wheels 37 and the hollow wheel 2. All three points are in the same plane of the pipe cross section, and the nylon block 17 is perpendicular to the tangential wall of the pipe at the point contact of the hollow wheel 2 with the pipe. // 11 g T 254 If during movement the correct position of the probe relative to the pipe 12 (in: if the point of contact: None of the guide wheels 37 turns out to be higher than the point of contact of the other), then the carriage will fix it around the axis 28 This position, keeping close contact with the pipe 7. When a hollow wheel .2 encounters irregularities (welding seam) that can damage the tire 7, the protective screen 8 with teeth, (or recesses) 15 bumps the obstacle and, overcoming the spring force of the cam follower 14, begins to rotate, the passage between the rim 3 and the pipe 12. As a result, the rim rises above the obstacle until the next window 11 of the screen 8 takes a similar position relative to the pipe 12 and locks in this position by means of a follower cam mechanism 14. This is ensured as a result e ingress follower member of the cam mechanism in the new recess 13 on the screen 8, which prevents the bus 7 ot.povrezhdeni and prolongs the service life of the probe. // 77/12
    0mg 2
    权利要求:
    Claims (3)
    [1]
    1. PROBE FOR ULTRASONIC CONTROL OF PIPELINE WALLS, consisting of an ultrasonic-permeable hollow wheel with a sound-transmitting medium enclosed inside it and sensors for transmitting and receiving ultrasonic radiation, characterized in that, in order to increase the measurement accuracy by maintaining an adequate acoustic connection between the probe and the pipe, by-; joe wheel consists of a rigid rim equipped with an elastic sound-conducting tire with end elements and is mounted on a carriage made with the possibility of linear and angular movements in the vertical plane, while guide wheels are placed coaxially with it and with a clearance relative to the hubs of its axis, movably mounted on a common shaft mounted on the carriage, parallel to the axis of the hollow wheel.
    [2]
    2. The probe according to π. 1, with the fact that, in order to prevent the destruction of the sound-conducting bus, the hollow wheel is enclosed in a protective shield made with recesses on the periphery, and a cam mechanism is installed on the carriage, the tracking element of which is in contact with recesses on the screen.
    [3]
    3. The probe according to π. 1, characterized in that the hollow wheel is equipped with a profiled sound-conducting unit installed between the sensors for transmitting and receiving ultrasonic radiation and the rim of the hollow wheel.
    SU <„1195925
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    IT1160601B|1987-03-11|
    US4202216A|1980-05-13|
    AU521531B2|1982-04-08|
    NO146252B|1982-05-18|
    JPS5858619B2|1983-12-26|
    EP0001674B1|1981-08-12|
    EP0001674A1|1979-05-02|
    AU3887878A|1980-02-21|
    DE2860940D1|1981-11-12|
    NO782817L|1979-02-26|
    JPS5446087A|1979-04-11|
    NO146252C|1982-08-25|
    CA1105127A|1981-07-14|
    IT7868937D0|1978-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3371524A|1964-10-15|1968-03-05|Custom Machine Inc|Apparatus for positioning a search unit|
    GB1118141A|1965-03-26|1968-06-26|Nat Res Dev|Improvements in ultrasonic transmitting or receiving devices|
    US3257843A|1965-04-29|1966-06-28|Automation Ind Inc|Ultrasonic inspection apparatus|
    US3600613A|1968-08-22|1971-08-17|Branson Instr|Transducer probe for ultrasonic pulse-echo test apparatus|
    US3628374A|1970-01-15|1971-12-21|United States Steel Corp|Ultrasonic testing apparatus|
    GB1294404A|1970-03-03|1972-10-25|Secr Defence|Improvements in ultrasonic inspection devices|
    US3628375A|1970-04-28|1971-12-21|Dominick A Pagano|Apparatus for ultrasonic inspection of a length of test material|
    US4055990A|1975-07-28|1977-11-01|Frederick Victor Topping|Pipeline inspection apparatus|GB2043248B|1979-02-28|1983-04-27|British Gas Corp|Ultrasonic pipe inspection apparatus|
    GB2055201B|1979-07-19|1983-07-20|British Gas Corp|Pressure-balanced probe|
    US4291577A|1979-12-03|1981-09-29|The Institute Of Paper Chemistry|On line ultrasonic velocity gauge|
    DE3244776A1|1981-12-08|1983-05-26|Schlumberger ElectronicsLtd., Farnborough, Hampshire|ROLL-LIKE ULTRASONIC INSPECTION DEVICE|
    GB2128739B|1982-09-15|1986-05-21|Schlumberger Electronics|Ultrasonic inspection devices|
    GB2141823B|1983-06-17|1986-05-21|British Gas Corp|Mounting for ultrasonic wheel probes|
    US4615218A|1984-09-12|1986-10-07|Pagano Dominick A|Ultrasonic wheel probe with acoustic barrier|
    JPH0267259U|1988-11-09|1990-05-22|
    JPH02131660U|1989-04-07|1990-11-01|
    US5392652A|1992-04-07|1995-02-28|Lambert, Macgill, Thomas, Inc.|Method and apparatus for inspection of metal objects utilizing variable angle ultrasonic transducer|
    GB9711413D0|1997-06-04|1997-07-30|Sonic Technologies Limited|Measuring the thickness of a liner for a pipe|
    US6571636B1|2000-09-14|2003-06-03|Cf&I Steel, L.P.|Wheel-type transmit/receive ultrasonic inspection device with constant length internal liquid soundpath|
    WO2004090528A1|2003-04-08|2004-10-21|Schlumberger Canada Limited|Method and apparatus for acoustically inspecting a tubular using elastromeric acoustic coupling|
    GB0806997D0|2008-04-17|2008-05-21|Airbus Uk Ltd|A scanner|
    US8176788B2|2008-12-08|2012-05-15|The Boeing Company|System and method of ultrasonic inspection|
    FR2959017B1|2010-04-20|2013-05-31|Gdf Suez|NON-DESTRUCTIVE CONTROL DEVICE AND METHOD FOR DETECTING POSSIBLE ANOMALIES|
    FR2959315B1|2010-04-22|2012-04-27|Gdf Suez|INSTALLATION AND METHOD FOR CHARACTERIZING DISSOLVED GASES IN A LIQUID|
    GB201105116D0|2011-03-28|2011-05-11|Airbus Operations Ltd|Ultrasonic wheel scanner|
    US9027406B2|2011-05-16|2015-05-12|General Electric Company|Transducer apparatus and method for assembling a transducer apparatus|
    US20170010179A1|2014-03-09|2017-01-12|Eyal Conforti|Adjustable wide bandwidth guidedwaveprobe for tube and pipe inspection system|
    RU2606205C1|2015-07-13|2017-01-10|Акционерное общество "Концерн "Центральный научно-исследовательский институт "Электроприбор"|Pig-flaw detector|
    EP3494395A4|2016-06-13|2020-06-17|Elop AS|Device, system and method for emission and reception of ultrasonic signals to and from a test material|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB3535477|1977-08-23|
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