Tube plug having a flange sealing a chamber for plugging a tubular member
    1.
    发明授权
    Tube plug having a flange sealing a chamber for plugging a tubular member 失效
    管塞具有密封用于堵塞管状构件的室的凸缘

    公开(公告)号:US5456290A

    公开(公告)日:1995-10-10

    申请号:US772622

    申请日:1991-10-04

    摘要: Tube plug and method for plugging a heat exchanger tube having an inner wall, which tube plug has a reduced susceptibility to stress corrosion cracking. The tube plug includes a shell having a closed end, an open end and an outer wall, the shell defining a chamber therein in communication with the open end of the shell. Disposed in the chamber is an expander member for expanding the outer wall of the shell into sealing engagement with the inner wall of the tube. A sealing member engages the expander member and is disposed across the open end of the shell for sealing the chamber defined by the shell so that fluid can not enter the chamber to corrosively attack the shell.

    摘要翻译: 用于堵塞具有内壁的热交换器管的管塞和方法,该管塞对应力腐蚀开裂的敏感性降低。 管塞包括具有闭合端,开口端和外壁的壳体,壳体限定与壳体的开口端连通的室。 设置在腔室中的膨胀器构件用于使壳体的外壁膨胀成与管的内壁密封接合。 密封构件接合膨胀器构件并且横跨壳体的开口端布置,用于密封由壳限定的室,使得流体不能进入室以腐蚀地侵入壳体。

    Tube plug and method for plugging a tube
    2.
    发明授权
    Tube plug and method for plugging a tube 失效
    管插管和插管方法

    公开(公告)号:US5194214A

    公开(公告)日:1993-03-16

    申请号:US699406

    申请日:1991-05-13

    IPC分类号: F16L55/132 F28F11/02

    CPC分类号: F28F11/02 F16L55/132

    摘要: A plugging device, such as a tube plug, and method for plugging a tubular member, such as a nuclear steam generator tube, comprises a locking cup for securing together the plurality of members comprising the tube plug. The plugging device may comprise a first member, such as a shell of a tube plug, a second member, such as bolt means of a tube plug and an annular locking cup disposed in a bore of the first member and having outside diameter threads. The outside diameter threads of the locking cup have a deformed portion with a wave-like pattern for providing resistance during threading and unthreading of the locking cup into and out of the first member. At least one of the second member and the locking cup has at least one recess for receiving a deformable portion of the other of the second member and the locking cup for securing the first member, the second member, and the locking cup together. The metal-to-metal abutment of an outside diameter surface of the locking cup and a plug face of the shell and the metal-to-metal abutment of a taper of the bolt means and a taper of the locking cup may seal a chamber within the shell to prevent fluid flow through the tube plug.

    摘要翻译: 诸如管塞的堵塞装置和用于堵塞诸如核蒸汽发生器管的管状构件的方法包括用于将包括管塞的多个构件固定在一起的锁定杯。 堵塞装置可以包括第一构件,例如管塞的壳体,第二构件,例如管塞的螺栓装置和设置在第一构件的孔中并具有外径螺纹的环形锁杯。 锁定杯的外径螺纹具有波形图案的变形部分,用于在锁定杯进入和离开第一构件的螺纹和脱螺纹期间提供阻力。 第二构件和锁定杯中的至少一个具有用于接收第二构件中的另一个的可变形部分和用于将第一构件,第二构件和锁定杯固定在一起的锁定杯的至少一个凹部。 锁定杯的外径表面和壳体的塞面以及螺栓装置的锥形的金属对金属邻接件和锁定杯的锥形的金属对金属邻接件可以密封锁定杯内的腔室 外壳防止流体流过管塞。

    Minature sludge lance apparatus
    5.
    发明授权
    Minature sludge lance apparatus 有权
    微型污泥喷枪设备

    公开(公告)号:US08752511B2

    公开(公告)日:2014-06-17

    申请号:US13078026

    申请日:2011-04-01

    IPC分类号: F22B37/48

    摘要: A miniature sludge lance for a steam generator in a pressurized water nuclear reactor is provided. The sludge lance is structured to enter the steam generator via an inspection opening and has a body sufficiently thin to fit between adjacent tubes. The sludge lance rail has at least two types of nozzle assemblies that may be attached thereto. One nozzle assembly rotates and another nozzle assembly translates in a vertical direction. A drive assembly, a mounting assembly, an oscillation assembly, and flow straighteners are also provided.

    摘要翻译: 提供了一种用于加压水核反应堆中的蒸汽发生器的微型污泥喷枪。 污泥喷枪被构造成通过检查开口进入蒸汽发生器,并且具有足够薄的主体以适合相邻的管之间。 污泥喷枪轨道具有至少两种可以附接到其上的喷嘴组件。 一个喷嘴组件旋转,另一喷嘴组件在垂直方向上平移。 还提供了驱动组件,安装组件,振荡组件和流平衡器。