Fiberoptic inspection system
    3.
    发明公开
    Fiberoptic inspection system 失效
    纤维光学检查系统。

    公开(公告)号:EP0137405A2

    公开(公告)日:1985-04-17

    申请号:EP84111453.1

    申请日:1984-09-26

    IPC分类号: G02B23/26 G21C17/00

    摘要: A fiberscope inspection system for a nuclear steam generating plant includes an optical unit and a transport unit respectively coupled to opposite ends of the fiberoptic cable and mounted at space-apart points on a trolley beneath the tube sheet, with the fiberoptic cable hanging freely in a catenary between the two units, both of which are coupled by cable to a remote control station. The optical unit is self-contained and includes a light source, a video camera and a focusing mechanism and chain and sprocket remotely- controlled drive means for controlling the focusing mechanism. The transport unit includes a cartridge comprising a coil of a steel drive tape, the leading end of which is welded to a split-sleeve coupling disposed in clamping engagement with the leading end of the fiberoptic cable, the tape being engageable by a drive sprocket for driving same to feed and retract the fiberoptic cable. Position sensing means are provided for monitoring the position of the fiberscope probe.

    Sleeving method
    4.
    发明公开
    Sleeving method 失效
    Auskleidungsverfahren。

    公开(公告)号:EP0047407A1

    公开(公告)日:1982-03-17

    申请号:EP81106394.0

    申请日:1981-08-18

    IPC分类号: F28F11/02 F16L55/16

    摘要: A sleeving method wherein a metal sleeve (16) is inserted into a tube (10) so as to bridge a defective region of the tube (10). The sleeve (16) has teeth (40) on the outside thereof which tightly contact the inside surface of the defective tube (10) and create a labyrinth-type seal. The sleeve (16) is then internally pressurized in the area where the teeth (40) are located. This expansion of the sleeve (16) causes the teeth (40) to engage the tube (10). The other end of the sleeve (16) can then be either similarly attached to the tube (10) or welded to the tube (10). Next, the remainder of the sleeve (16) is expanded which causes the sleeve (16) to shrink in length which results in the teeth slightly penetrating the inside surface of the tube thereby creating a leak tight seal therebetween.

    摘要翻译: 一种套管方法,其中金属套筒(16)插入管(10)中以便桥接管(10)的缺陷区域。 套筒(16)的外侧具有与缺陷管(10)的内表面紧密接触并形成迷宫式密封件的齿(40)。 然后,套筒(16)在齿(40)所在的区域中被内部加压。 套筒(16)的这种膨胀使得齿(40)与管(10)接合。 然后,套筒(16)的另一端可以类似地连接到管(10)上或者焊接到管(10)上。 接下来,套筒16的其余部分被膨胀,这导致套筒16的长度收缩,这导致齿稍微穿过管子的内表面,从而在它们之间产生泄漏密封。

    Improved apparatus for remotely repairing tubes in a steam generator
    5.
    发明公开
    Improved apparatus for remotely repairing tubes in a steam generator 失效
    用于远程修复蒸汽发生器中管的改进设备

    公开(公告)号:EP0004853A1

    公开(公告)日:1979-10-31

    申请号:EP79100372.6

    申请日:1979-03-16

    IPC分类号: B25J5/00 G21C17/00 F22B37/00

    摘要: Apparatus that may be assembled inside the head of a steam generator and can perform various repair and inspection operations on the steam generator's tubes and tubesheet. Selective engagement of an included tool holder (102) and associated tools with the tube (18) and tubesheet (14) is provided by a gear train which has a portion which houses a tool drive motor (78). The drive motor (78) provides power to a tool holder-mounted tool chuck (104) for driving the various tools insertable therein, the drive motor (78) being disposed within a hollow lead screw (96) of the tool holder (102).
    The apparatus is compact and easily insertable into, and remotely operable in, the limited space in the steam generator head.

    摘要翻译: 装置可以安装在蒸汽发生器的头部内,并且可以对蒸汽发生器的管和管板执行各种修理和检查操作。 所包括的工具夹具(102)和相关工具与管(18)和管板(14)的选择性接合由具有容纳工具驱动马达(78)的部分的齿轮系提供。 驱动马达78为安装在工具夹具上的工具卡盘104提供动力,以驱动可插入其中的各种工具,驱动马达78设置在工具夹具102的中空导螺杆96内, 。 该设备结构紧凑,易于插入蒸汽发生器头部的有限空间内,并可在其中遥控操作。

    Apparatus for sleeving damaged tubes of a nuclear steam generator
    7.
    发明公开
    Apparatus for sleeving damaged tubes of a nuclear steam generator 失效
    用于消除核燃料发电机损坏管的装置

    公开(公告)号:EP0299539A3

    公开(公告)日:1989-09-27

    申请号:EP88111679.2

    申请日:1985-01-21

    IPC分类号: B23P19/02

    摘要: During a sleeving operation, to limit the ex­posure of personnel to radioactivity within the channel head of a nuclear steam generator, a cartridge sleeve-blank loader (21) for automatically sleeving a plurality of linear tubes is provided. The loader includes a removable turret (25) of drum which carries a plurality of preloaded slightly bowed and indexed sleeve blanks (27) to be inserted by a lifter (29) into selected tubes (31). The tube receiving the sleeve holds the sleeve in the tube when the lifter is retracted. In inserting the sleeve blank, the lifter moves at a low speed until the leading end of the sleeve enters a tube, and then moves faster. An operator briefly enters the manway of the channel head and replaces the unloaded turret with a preloaded turret.

    Sleeving of tubes of steam generator in hostile environment
    9.
    发明公开
    Sleeving of tubes of steam generator in hostile environment 失效
    蒸汽发生器管道在环境中的应用

    公开(公告)号:EP0152778A3

    公开(公告)日:1986-08-27

    申请号:EP85100570

    申请日:1985-01-21

    IPC分类号: B23P19/02

    摘要: During a sleeving operation, to limit the exposure of personnel to radioactivity within the channel head of a nuclear steam generator, a cartridge sleeve-blank loader for automatically sleeving a plurality of linear tubes is provided. The loader includes a removable turret or drum which carries a plurality of preloaded slightly bowed and indexed sleeve blanks to be inserted by a lifter into selected tubes. The tube receiving the sleeve holds the sleeve in the tube when the lifter is retracted. In Inserting the sleeve blank, the lifter moves at a low speed until the leading end of the sleeve enters a tube, and then moves faster. An operator briefly enters the manway of the channel head and replaces the unloaded turret with a preloaded turret..

    Sleeving of tubes of steam generator in hostile environment
    10.
    发明公开
    Sleeving of tubes of steam generator in hostile environment 失效
    Anbringen von在侵略性的Umgebungen中打了一个Rohren。

    公开(公告)号:EP0152778A2

    公开(公告)日:1985-08-28

    申请号:EP85100570.2

    申请日:1985-01-21

    IPC分类号: B23P19/02

    摘要: During a sleeving operation, to limit the exposure of personnel to radioactivity within the channel head of a nuclear steam generator, a cartridge sleeve-blank loader for automatically sleeving a plurality of linear tubes is provided. The loader includes a removable turret or drum which carries a plurality of preloaded slightly bowed and indexed sleeve blanks to be inserted by a lifter into selected tubes. The tube receiving the sleeve holds the sleeve in the tube when the lifter is retracted. In Inserting the sleeve blank, the lifter moves at a low speed until the leading end of the sleeve enters a tube, and then moves faster. An operator briefly enters the manway of the channel head and replaces the unloaded turret with a preloaded turret..

    摘要翻译: 在套管操作期间,为了将人员暴露于核蒸汽发生器的通道头内的放射性,提供了一种用于自动套管多个线性管的套筒 - 空白装载器。 装载机包括可移动的转台或滚筒,其携带多个预加载的稍微弯曲和分度的套筒坯料,以通过升降机插入到选定的管中。 当升降器收回时,接收套筒的管将套筒保持在管中。 在插入套筒坯件时,升降器以低速运动,直到套筒的前端进入管子,然后移动得更快。 操作员短暂地进入通道头的通道,用预加载的转台替换卸载的转台。