Inner filter removal tool
    1.
    发明授权
    Inner filter removal tool 失效
    内滤器去除工具

    公开(公告)号:US5379330A

    公开(公告)日:1995-01-03

    申请号:US135779

    申请日:1993-10-12

    IPC分类号: G21C19/20 G21C19/26 G21C19/00

    摘要: An improved tool for removing the highly contaminated inner filter from a control rod drive during a maintenance operation. The tool may also be used to install the inner filter by pushing the inner filter on and locking the spring clip onto flats of the center lug of the control rod drive stop piston. The tool has a collet with flexible fingers which are inserted inside the inner filter while flexed radially inward. After the collet is inserted, a retractable cam with a conical bearing surface is retracted to a position whereat it urges the collet fingers radially outward to clamp the collet onto the inner filter. The locked filter must be rotated before removal. With the inner filter coupled to the collet, the tool is then pulled out to remove the inner filter from the control rod drive.

    摘要翻译: 一种改进的工具,用于在维护操作期间从控制杆驱动器中去除高度污染的内部过滤器。 该工具还可以用于通过推动内部过滤器并将弹簧夹锁定到控制棒驱动停止活塞的中心凸耳的平面上来安装内部过滤器。 该工具具有柔性指状物的夹头,其在径向向内弯曲的同时插入内部过滤器内部。 在插入夹头之后,具有锥形支承表面的可伸缩凸轮缩回到其中径向向外推动夹头的位置,以将夹头夹紧到内部过滤器上。 锁定的过滤器必须在拆卸前旋转。 将内部过滤器联接到夹头上,然后将工具拉出以从控制杆驱动器中移除内部过滤器。

    Outer filter removal tool
    2.
    发明授权
    Outer filter removal tool 失效
    外滤器去除工具

    公开(公告)号:US5347554A

    公开(公告)日:1994-09-13

    申请号:US135872

    申请日:1993-10-12

    IPC分类号: G21C19/20 G21C19/00

    摘要: An improved tool for removing a highly contaminated outer filter from a control rod drive during a maintenance operation. The tool slides onto the control rod drive and surrounds the outer filter with a shield. The shield has a window for removing the screws used to mount the outer filter on the control rod drive. The tool has a support for the spud on the inside thereof. A U-shaped handle is slidably inserted into guideways so that it interlocks with circumferential slots in the shield. The arms of the inserted U-handle latch underneath the ring flange of the outer filter, whereby the outer filter is captured by the tool. The filter-mounting screws are then removed by unscrewing through the aligned window in the shield. Thereafter, the outer filter is removed from the CRD when the outer filter removal tool is lifted.

    摘要翻译: 一种改进的工具,用于在维护操作期间从控制杆驱动器中去除高度污染的外部过滤器。 该工具滑动到控制杆驱动器上,并用屏蔽件围绕外部过滤器。 屏蔽罩有一个窗口用于拆卸用于将外部过滤器安装在控制杆驱动器上的螺钉。 该工具在其内部具有支撑件。 U形手柄可滑动地插入导轨中,使其与屏蔽件中的周向狭槽互锁。 插入的U形手柄的臂在外部过滤器的环形凸缘下方锁定,由此外部过滤器被工具捕获。 然后通过拧松屏蔽中对齐的窗口拧下过滤器安装螺钉。 此后,当外部过滤器去除工具被提起时,外部过滤器从CRD中移除。

    Multistage control rod drive uncoupling tool
    3.
    发明授权
    Multistage control rod drive uncoupling tool 失效
    多级控制杆驱动解耦工具

    公开(公告)号:US5524030A

    公开(公告)日:1996-06-04

    申请号:US199405

    申请日:1994-02-22

    IPC分类号: G21C7/16 G21C19/20 G21C19/00

    摘要: An uncoupling tool has a two-module design: one module being a driver assembly for developing the uncoupling movement and the other module being a probe assembly for verifying the uncoupled condition. The probe assembly attaches to the threaded end of the piston tube with its probe extending inside the piston tube. The driver assembly attaches to the CRD ring flange. The probe assembly detects the ring magnet in the drive piston using analog position sensors which operate on the principle of the Hall effect and solid state circuitry. A top sensor provides a signal indicating that the control rod is in its "full out" position; a bottom sensor provides a signal indicating that the control rod is uncoupled; and an intermediate sensor provides a signal indicating that the control rod is in a transition position between the "full out" and uncoupled positions. The probe incorporates spacers which focus the magnetic flux onto the sensors. To uncouple the control rod, the probe assembly is lifted using a separate driver assembly.

    摘要翻译: 解耦工具具有双模块设计:一个模块是用于开发非耦合运动的驱动器组件,而另一模块是用于验证非耦合状态的探针组件。 探针组件连接到活塞管的螺纹端,其探针在活塞管内延伸。 驱动器组件连接到CRD环形法兰。 探头组件使用以霍尔效应和固态电路为原理的模拟位置传感器来检测驱动活塞中的环形磁体。 顶部传感器提供指示控制杆处于其“完全”位置的信号; 底部传感器提供指示控制杆脱离的信号; 并且中间传感器提供指示控制杆处于“完全”和非耦合位置之间的过渡位置的信号。 探头包含将磁通量聚焦到传感器上的间隔物。 为了使控制杆脱开,探针组件使用单独的驱动器组件提升。

    Uncoupling rod centering gauge
    4.
    发明授权
    Uncoupling rod centering gauge 失效
    解耦杆定心计

    公开(公告)号:US5394446A

    公开(公告)日:1995-02-28

    申请号:US135811

    申请日:1993-10-12

    IPC分类号: G21C19/20 G21C7/16 G21C17/00

    摘要: A gauge for ensuring that the uncoupling rod of a control rod drive is properly inserted in the center hole of the spud and not in one of the outer lobes, i.e., spud flow holes, which communicate with the center hole. The uncoupling rod is inserted in the spud. Then the gauge is placed on top of the spud with a centering ring protruding into the spud. The uncoupling rod is correctly installed if it is free to slide inside the gauge and the spud. The gauge is also provided with a ring to protect the spud during transfer of the control rod drive.

    摘要翻译: 用于确保控制棒驱动器的非耦合杆适当地插入到轴的中心孔中而不是在与中心孔连通的外凸角中的一个,即,流出孔中。 分离杆插入到支脚中。 然后将量规放置在立柱的顶部,并具有突出到支脚中的定心环。 如果在量规和标准杆内自由滑动,则解耦杆正确安装。 仪表还设有一个环,用于在控制杆传动过程中保护喷头。

    Spark electrode assembly
    7.
    发明授权
    Spark electrode assembly 失效
    火花电极组件

    公开(公告)号:US07116041B2

    公开(公告)日:2006-10-03

    申请号:US10855830

    申请日:2004-05-27

    IPC分类号: H01T13/00 H01T13/02 H01T13/20

    摘要: A spark electrode assembly has an elongate electrode with an inner insulator arranged for operable attachment to a support structure. The inner insulator surrounds the electrode with one end of the electrode positioned adjacent a ground element across a spark gap and another end of the electrode extending relative to the support structure for attachment to a source of electrical power. An outer insulator is spaced radially outwardly from the inner insulator and surrounds the inner insulator generally adjacent the end of the electrode adjacent the ground element. The inner and outer insulators cooperate to inhibit the formation of a continuous lubrication layer thereon, thereby establishing an area generally free from the lubrication layer between the end of the electrode adjacent the ground element and the support structure.

    摘要翻译: 火花电极组件具有细长电极,其具有布置成可操作地附接到支撑结构的内绝缘体。 内绝缘体围绕电极,电极的一端通过火花隙定位在接地元件附近,并且电极的另一端相对于支撑结构延伸以附接到电力源。 外绝缘体与内绝缘体径向向外间隔开,并且围绕内绝缘体大致邻近接地元件的电极端部。 内绝缘体和外绝缘体配合以阻止在其上形成连续润滑层,从而在邻近接地元件的电极的端部和支撑结构之间形成通常没有润滑层的区域。