Core plate repair using guide tube gap wedges
    1.
    发明授权
    Core plate repair using guide tube gap wedges 失效
    使用导管间隙楔形芯板修复

    公开(公告)号:US5838751A

    公开(公告)日:1998-11-17

    申请号:US796093

    申请日:1997-02-05

    IPC分类号: G21C5/10 G21C19/00

    摘要: A method and an apparatus for repairing a core plate having a cracked support structure. The method entails the step of providing a vertical compression load path between the core plate and one or more control rod guide tubes. This is accomplished by installing a plurality of load-bearing wedges between the core plate and the step of each guide tube. Each load-bearing wedge is placed between the core plate and the guide tube machined step so that core plate pressure loads are reacted by the weight of the fuel rather than the core plate support structure. The load-bearing wedges can be installed without removing the guide tube or the fuel support casting.

    摘要翻译: 一种用于修复具有裂纹支撑结构的芯板的方法和装置。 该方法需要在芯板和一个或多个控制棒导向管之间提供垂直压缩载荷路径的步骤。 这是通过在芯板和每个导管的台阶之间安装多个承载楔来实现的。 每个承载楔被放置在芯板和导管加工步骤之间,使得芯板压力负载通过燃料的重量而不是芯板支撑结构反应。 承载楔可以在不拆卸导管或燃料支撑铸件的情况下进行安装。

    Core plate repair using control rod guide tube load transfer collar
    2.
    发明授权
    Core plate repair using control rod guide tube load transfer collar 失效
    使用控制杆导向管负载传递套圈进行芯板维修

    公开(公告)号:US5646970A

    公开(公告)日:1997-07-08

    申请号:US664605

    申请日:1996-06-18

    IPC分类号: G21C5/10 G21C19/00 G21C13/00

    摘要: A method and an apparatus for repairing a core plate having a cracked support structure. The method entails the step of providing a vertical compression load path between the core plate and one or more control rod guide tubes. This is accomplished by installing a plurality of load-bearing elements between the core plate and the flanges of the guide tubes. Each load-bearing element is placed between the core plate and a guide tube flange so that core plate pressure loads are reacted by the weight of the fuel rather than the core plate support structure. The load-bearing element may take the form of a solid ring, a C-shaped spring collar or a hinged collar.

    摘要翻译: 一种用于修复具有裂纹支撑结构的芯板的方法和装置。 该方法需要在芯板和一个或多个控制棒导向管之间提供垂直压缩载荷路径的步骤。 这是通过在芯板和引导管的凸缘之间安装多个承载元件来实现的。 每个承载元件被放置在芯板和引导管凸缘之间,使得芯板压力负载通过燃料的重量而不是芯板支撑结构反应。 承载元件可以采取实心环,C形弹簧圈或铰接套环的形式。

    Core spray line coupling apparatus and methods
    3.
    发明授权
    Core spray line coupling apparatus and methods 失效
    核心喷涂线耦合装置及方法

    公开(公告)号:US6131962A

    公开(公告)日:2000-10-17

    申请号:US15429

    申请日:1998-01-29

    IPC分类号: F16L21/08 G21F1/04 F16L17/00

    摘要: Coupling apparatus and methods for replacing a core spray line downcomer pipe coupled to a shroud T-box are described. In one embodiment, the coupling apparatus includes a seal ring, a mating flange, a housing, at least one coupling bolt, at least one spherical washer, and at least one lateral pin. The thermal expansion coefficient of the coupling bolt is lower than the thermal expansion coefficient of the seal ring, mating flange, and housing. After extending the downcomer pipe into the housing, the seal ring is inserted into the opposite end of the housing adjacent the downcomer pipe. The seal ring is then seated on the mating flange seat. The two seats allow the downcomer pipe to be rotational misaligned with the coupling apparatus. The coupling bolts extend through the mating flange and the housing to rigidly secure the downcomer pipe to the coupling apparatus. Lateral pins extend through the housing and the downcomer pipe to provide vertical and torsional load transfer from the downcomer pipe to the coupling apparatus. In addition, the coupling apparatus includes a cylindrical pipe, an elbow, a draw bolt, an anchor plate, and a block. The elbow is configured to receive the T-box extending from the shroud. In one embodiment, the draw bolt bolts extend through the anchor plate, the T-box, the elbow, and the block to secure the coupling apparatus to the shroud.

    摘要翻译: 描述了用于替换耦合到护罩T盒的芯喷射线降液管的耦合装置和方法。 在一个实施例中,联接装置包括密封环,配合凸缘,壳体,至少一个联接螺栓,至少一个球形垫圈和至少一个横向销。 联轴螺栓的热膨胀系数低于密封圈,配合法兰和外壳的热膨胀系数。 在将降液管延伸到壳体中之后,密封环插入到与降液管相邻的壳体的相对端。 然后将密封圈安装在配合法兰座上。 两个座位允许下降管与联接装置旋转不对准。 联接螺栓延伸穿过配合法兰和壳体,以将降液管刚性地固定到联接装置上。 横向销延伸通过壳体和降液管,以提供从降液管到联接装置的垂直和扭转载荷传递。 此外,联接装置包括圆柱形管,弯头,拉伸螺栓,锚板和块。 肘部被配置为接收从护罩延伸的T形盒。 在一个实施例中,牵引螺栓螺栓延伸穿过锚板,T型箱,弯头和块,以将联接装置固定到护罩上。

    Pipe connecting assembly and method of use
    4.
    发明授权
    Pipe connecting assembly and method of use 失效
    管接头组装及使用方法

    公开(公告)号:US06918619B2

    公开(公告)日:2005-07-19

    申请号:US10064244

    申请日:2002-06-25

    摘要: A pipe coupling assembly includes a first and a second pipe coupling member with the first coupling member including a cylindrical flange and a spherical convex seat portion, and the second coupling member including a cylindrical flange and a spherical concave seat portion. Each flange includes a first plurality of pivot notches. The coupling assembly further includes a first and a second cylindrical spring ring. Each spring ring includes a body having a first surface and an opposing second surface. The body includes a main bore and a plurality of bolt bores extending therethrough. A plurality of pivot bearings extend from the first surface with each pivot bearing configured to engage a pipe section flange notch. A plurality of bolt bore seats are located in the second surface and coaxially aligned with the bolt bores.

    摘要翻译: 管接头组件包括第一和第二管接头构件,第一连接构件包括圆柱形凸缘和球形凸座部分,第二联接构件包括圆柱形凸缘和球形凹座部分。 每个凸缘包括第一多个枢轴凹口。 联接组件还包括第一和第二圆柱形弹簧环。 每个弹簧环包括具有第一表面和相对的第二表面的主体。 主体包括主孔和延伸穿过其中的多个螺栓孔。 多个枢转轴承从第一表面延伸,每个枢转轴承构造成接合管段凸缘凹口。 多个螺栓孔座位于第二表面中并与螺栓孔同轴对准。