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公开(公告)号：US4688327A
公开(公告)日：1987-08-25
申请号：US764705
申请日：1985-08-12
CPC分类号： F22B37/003 , B23P19/022 , B23P6/00 , Y10T29/531 , Y10T29/53113 , Y10T29/53122
摘要： Apparatus for processing the damaged tubes of a steam generator. This apparatus includes a sleeving tool for inserting sleeves in the tubes, a high-roller tool for rolling the sleeves at their upper ends where they have been expanded, and a low-roller tool for rolling the sleeves at their lower ends in the tube sheet. Each tool is provided with locking pins which engage tubes adjacent to a tube to be processed and suspend the tool in processing position. The sleeves are inserted in the tubes and are rolled by rolls driven by a hydraulic motor. For sleeve insertion and for high and low rolling, the motor is controlled by a servo control valve. The feedback signal to this valve is derived from a flow transducer in the feed line for the motor. The feedback for the force of sleeve insertion is the pressure across the motor derived from pressure transducers in the conductors through which the motor is supplied. For insertion speed and for rolling speed, the feedback is derived from a fluid-flow transducer. The passage of fluid through the servo valve is capable of varying continuously responsive the controlling error signal. The cage or roll tube and mandrel of the low roller are advanced into the sleeve by a piston of a hydraulic cylinder. The flow of fluid to the locking pins and to this hydraulic cylinder is controlled by a directional control valve.
摘要翻译： 用于处理蒸汽发生器的损坏管的装置。 该装置包括用于将套管插入管中的套筒工具，用于在其上端膨胀的情况下滚动套筒的高辊工具，以及用于在套管的下端滚动套筒的低辊工具 。 每个工具都设置有锁定销，该锁定销与待加工的管相邻的管接合，并将工具悬挂在处理位置。 套管插入管中，并由液压马达驱动的辊子滚动。 对于套筒插入和高低滚动，电机由伺服控制阀控制。 该阀的反馈信号来源于马达进给管路中的流量传感器。 套筒插入力的反馈是通过电机供应的导体中的压力传感器产生的电机上的压力。 对于插入速度和轧制速度，反馈来自流体流量传感器。 通过伺服阀的流体通过控制误差信号连续响应。 低辊的保持架或滚筒管和心轴由液压缸的活塞推进到套筒中。 流向锁定销和该液压缸的流体由方向控制阀控制。
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公开(公告)号：US4639994A
公开(公告)日：1987-02-03
申请号：US538309
申请日：1983-10-03
IPC分类号： F28F11/06 , B21D39/20 , B23P6/00 , B23P19/02 , F22B37/00 , F22B37/02 , F28F11/00 , B23P7/00 , B23P15/26
CPC分类号： B23P19/022 , B23P6/00 , F22B37/003 , Y10T29/49352 , Y10T29/49718 , Y10T29/531 , Y10T29/53122
摘要： Apparatus for processing the damaged tubes of a steam generator either to prepare the tubes for insertion of a sleeve, or to insert a sleeve or to treat the sleeve after it is inserted. This apparatus includes a drilling tool for drilling out plugs, a sleeving tool for inserting sleeves in the tubes, a high-roller tool for rolling the sleeves at their upper ends where they have been expanded, and a low-roller tool for rolling the sleeves at their lower ends in the tube sheet. The sleeves are inserted in the tubes and are rolled by rolls driven by a hydraulic motor. For drilling, for sleeve insertion and for high and low rolling, the motor is controlled by a servo control valve.
摘要翻译： 用于处理蒸汽发生器的损坏的管的装置，以制备用于插入套筒的管，或者插入套筒或在套筒插入之后对套筒进行处理。 该装置包括用于钻出插头的钻孔工具，用于将套管插入管中的套筒工具，用于在其已经膨胀的上端滚动套筒的高辊工具，以及用于滚动套筒的低辊工具 在管板的下端。 套管插入管中，并由液压马达驱动的辊子滚动。 对于钻孔，套筒插入和高低滚动，电机由伺服控制阀控制。
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公开(公告)号：US4653164A
公开(公告)日：1987-03-31
申请号：US580038
申请日：1984-02-14
IPC分类号： F22B37/02 , B23P19/00 , B23P19/02 , F22B37/00 , F28F11/00 , F28F11/02 , F28F11/06 , B21D53/00 , B23P17/00 , G21C19/00
CPC分类号： F28F11/02 , B23P19/001 , B23P19/022 , F22B37/003 , Y10T29/49352 , Y10T29/531
摘要： To limit the exposure of personnel to radioactivity within the channel head of a steam generator of a nuclear-reactor plant a cartridge sleeve-blank loader for automatically sleeving a plurality of tubes without the intervention of personnel is provided. The cartridge loader includes a turret or drum which carries a plurality of sleeve blanks around its periphery. A lifter engages the bottom of each sleeve bank in its turn at a sleeve insertion position of the turret and inserts the sleeve blank into a tube. Successive sleeve blanks are indexed to the insertion position for insertion into tubes. The sleeve blanks are slightly bowed or curved so that when a sleeve blank is inserted as a sleeve into a tube, the sleeve, since the tube is linear, exerts a restoring force on the wall of a tube which 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. Then the speed of insertion is increased. The turret is readily removable from the sleeve loader by use of a unique handle assembly so that any empty turret can be removed in a short time. In the practice of the invention, a loaded cartridge sleeve-blank loader is loaded ready for insertion outside of the channel head. Once all the sleeve blanks on a turret are inserted, an operator enters the manway of the channel head and removes the unloaded turret. The loaded turret is handed to him and he inserts it. The replacing operation can be accomplished by exposing the operator to radiation for no more than about 75 seconds.
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