Method for servicing a steam generator
    21.
    发明授权
    Method for servicing a steam generator 失效
    蒸汽发生器维修方法

    公开(公告)号:US4262402A

    公开(公告)日:1981-04-21

    申请号:US952431

    申请日:1978-10-18

    摘要: A servicing machine for a steam generator is accurately set up in the generator channel head with a pivoted arm mounted for rotation in a plane parallel to the tubesheet. The angular position of the arm, the longitudinal position of a carriage mounted on the arm and the vertical position of a platform on the carriage are remotely controlled to maneuver a probe used in mapping the precise location of the thousands of holes in the tubesheet. Various operations are then performed at each precise hole location by tools carried by the arm mounted carriage to prepare for installation of new tubing. The operation of a pair of remotely controlled pivoted arms, one on each side of the channel head divider plate, is coordinated to automatically position the ends of U-shaped tubes in corresponding holes in the tubesheet on opposite sides of the divider plate and to secure the same in place.

    摘要翻译: 用于蒸汽发生器的维修机器在发电机通道头中精确地设置,其中枢转臂安装成在与管板平行的平面中旋转。 远程控制臂的角位置,安装在臂上的滑架的纵向位置和平台在托架上的垂直位置,以操纵用于映射管板中数千个孔的精确位置的探针。 然后通过由手臂安装的托架承载的工具在每个精确的孔位置执行各种操作,以准备安装新的管道。 一对远程控制的枢转臂的操作(一个在通道头部分隔板的每一侧上)被协调,以将U形管的端部自动定位在分隔板的相对侧上的管板中相应的孔中,并且固定 相同的地方。