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    Nuclear fuel assembly with a lock-support spacer grid
    3.
    发明公开
    Nuclear fuel assembly with a lock-support spacer grid 有权
    核燃料组件与锁定支撑间隔网格

    公开(公告)号：EP2146350A2

    公开(公告)日：2010-01-20

    申请号：EP09005185.5

    申请日：2009-04-09

    申请人： Westinghouse Electric Company LLC

    发明人： Lu, Yong ,  Jiang, Xiaoyan

    IPC分类号： G21C3/352 ,  G21C3/356

    CPC分类号： G21C3/352 ,  G21C3/3424 ,  G21C3/3566 ,  G21Y2002/20 ,  G21Y2002/302 ,  G21Y2002/303 ,  G21Y2004/301 ,  Y02E30/40

    摘要： An improved grid for a nuclear reactor fuel assembly that has an egg-crate base grid as the primary support structure with each support cell of the base grid that supports a fuel rod having a lock-support sleeve that is rotatable within the support cell between a first and second orientation. In the first orientation the lock-support sleeve fits loosely within the support cell of the base grid and respectively, loosely receives the fuel rods that are loaded therein. The lock-support sleeves are then rotated to a second orientation that locks the fuel rods axially within the support cells.

    摘要翻译： 一种用于核反应堆燃料组件的改进网格，其具有作为主要支撑结构的蛋箱基础网格，其中基础网格的每个支撑单元支撑具有锁定支撑套筒的燃料棒，该锁定支撑套筒可在支撑单元内在 第一和第二方位。 在第一取向中，锁定支撑套筒松散地装配在基础栅格的支撑单元内并且分别松散地接收装载在其中的燃料棒。 然后锁定支撑套筒旋转到将燃料棒轴向锁定在支撑单元内的第二取向。

    DISPOSITIF ET PROCEDE DE MONTAGE D'UNE GRILLE-ENTRETOISE D'UN ASSEMBLAGE DE COMBUSTIBLE POUR UN REACTEUR NUCLEAIRE
    4.
    发明公开
    DISPOSITIF ET PROCEDE DE MONTAGE D'UNE GRILLE-ENTRETOISE D'UN ASSEMBLAGE DE COMBUSTIBLE POUR UN REACTEUR NUCLEAIRE 审中-公开
    装置和方法用于安装定位格架，用在核反应堆燃料棒BUNDLE

    公开(公告)号：EP1238396A1

    公开(公告)日：2002-09-11

    申请号：EP00988898.3

    申请日：2000-12-07

    申请人： Société Franco-Belge de Fabrication de Combustibles - FBFC

    发明人： BRICHET, Christophe

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3424 ,  G21Y2002/202 ,  G21Y2002/205 ,  G21Y2002/302 ,  G21Y2002/303 ,  G21Y2002/304 ,  G21Y2004/40 ,  G21Y2004/501 ,  Y02E30/40 ,  Y10T29/49902

    摘要： The inventive mounting device (14) comprises a support frame (16) for supporting the plates (2) of the first set of plates in arrangements which are parallel to each other; a means (30) of clamping and successively engaging each of the plates (3) of a second set of plates with the plates (2) of the first set in position in the support frame (16); and at least one comb (29) which can be moved between a disengaged position and an engaged position on each of the plates (2) of the first set. The support frame is connected to a fixed base plate (15) and the clamping and engaging means (30) and the comb (29) are mounted on a carriage (22) in such a way that they can move in a perpendicular plane to the plates (2) of the first set, said carriage being itself mounted in such a way that it can move in a parallel direction to the longitudinal direction of the plates (2) of the first set. The clamping means (30) comprises two jaws (30a, 30b) having projections for reducing the springs of the plate (3) of the second set of plates by compression. The invention also relates to a method for mounting the bracing grid with reduction of the springs of the plates (3) of the second set of plates by compression.

    Procédé et dispositif de soudage de plaquettes entrecroisées d'une grille-entretoise d'un assemblage de combustible par l'extérieur de la grille
    6.
    发明公开
    Procédé et dispositif de soudage de plaquettes entrecroisées d'une grille-entretoise d'un assemblage de combustible par l'extérieur de la grille 失效
    用于从定位格架的十字形腹板的外侧用于核燃料组件的焊接方法和设备

    公开(公告)号：EP0751529A1

    公开(公告)日：1997-01-02

    申请号：EP96401264.5

    申请日：1996-06-11

    申请人： FRANCO-BELGE DE FABRICATION DE COMBUSTIBLE FBFC

    发明人： Duthoo, Dominique

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3424 ,  G21Y2002/202 ,  G21Y2002/302 ,  G21Y2002/303 ,  G21Y2004/30 ,  G21Y2004/40 ,  G21Y2004/501 ,  Y02E30/40

    摘要： On place et on maintient, pendant le soudage, la grille-entretoise (20) dans une disposition telle que ses deux faces opposées perpendiculaires aux arêtes (33) des cellules (34) soient entièrement accessibles. On effectue simultanément, à l'aide de deux ensembles d'au moins deux dispositifs de soudage par faisceau laser (25a, 25b, 25d) disposés de part et d'autre des faces opposées de la grille-entretoise (20), le soudage d'au moins quatre tronçons d'arêtes (33) de la grille (20). Chacun des dispositifs de soudage dirige un faisceau laser de soudage sur une arête (33) de la grille, par l'extérieur des cellules (34). On réalise après une opération de soudage, un déplacement relatif entre la grille-entre-toise (20) et les dispositifs de soudage (25a, 25b, 25d), de manière à diriger les faisceaux laser de soudage (30a, 30b) du dispositif de soudage vers au moins quatre nouveaux tronçons d'arête (33) de la grille (20).

    摘要翻译： 布置在边缘和在十字交叉的方式，形成一个网格金属条（20），开放式单元阵列的 - 定义被引导到细胞从电网的两侧激光束焊接在一起，至少四种细胞角是 在每个一系列焊接步骤同时焊接。 步骤之间的电网在其自身相对于焊头平面上移动。 所以声称是焊接植物在惰性气氛包围格中，并具有通过该激光束被从外部焊接组件哪些是可动垂直于栅格平面焊接指向两个相对的窗口（23），其包括密封的室（22） 小区角落。

    Automated gauging apparatus
    8.
    发明公开
    Automated gauging apparatus 失效
    自动测量装置

    公开(公告)号：EP0372788A3

    公开(公告)日：1990-08-22

    申请号：EP89312324.0

    申请日：1989-11-28

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Reeves, James Windham ,  Childers, William Mark ,  King, Harold Bleckley, Jr. ,  Turner, Freddie Earl

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3424 ,  G21Y2002/202 ,  G21Y2002/205 ,  G21Y2002/302 ,  G21Y2004/30 ,  G21Y2004/401 ,  Y02E30/40

    摘要： To qualify the heights of inwardly projecting nuclear fuel rod-positioning stops formed in the sidewall of tubular ferrules (12) utilized in fuel bundle spacers, an automated gauging apparatus is provided to handle successive ferrules on an automated basis. The apparatus includes an orienting station (32) for longitudinally reorienting each ferrule, if necessary, and angularly orienting each ferrule in a pickup position. A mechanism (68)picks each ferrule from its pickup position and places it on an arbor (84) of a gauging fixture (82) with the rod-positioning stop surfaces bearing against arbor reference surfaces. A plurality of sensors, e.g. eddy current probes, are positioned to measure the proximity of ferrule peripheral surface sites adjacent the stops and thus provide output gauging signals indicative of the heights of the various stops.

    Apparatus for machining intricate feature cuts in thin walled tubular parts
    10.
    发明公开
    Apparatus for machining intricate feature cuts in thin walled tubular parts 失效
    一种用于在薄壁的管状零件切割错综复杂的切口。

    公开(公告)号：EP0372789A2

    公开(公告)日：1990-06-13

    申请号：EP89312325.7

    申请日：1989-11-28

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Muncy, Donald Gene ,  Plotts, William Breene

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3424 ,  B23K26/0823 ,  G21Y2002/202 ,  G21Y2002/205 ,  G21Y2002/302 ,  G21Y2004/30 ,  G21Y2004/401 ,  Y02E30/40

    摘要： Tubular (22) parts are delivered to a rotary positioner (46), or preferably in successive pairs to separate rotary positioners, where they are held for laser machining: in the preferred arrangement, the pairs of parts are machined in parallel by twin laser cutting beams directed thereat by a commonly mounted pair of focussing heads (42). The rotary positioners (46) are commonly rotated through a programmed series of angular motions in conjunction with a programmed series of joint X and Y axes linear motions of the focusing heads to scan the cutting beam over the surfaces of the parts and thus machine identical feature cuts in the sidewall of each part. Machining is performed under an inert gas atmosphere, and cuttings are vacuumed from the machining sites through apertured mandrels (86) inserted into the part bores.

    摘要翻译： 管状（22）的部分传递到回转定位器（46），或优选地在连续的双分开旋转定位器，在那里它们被保持激光加工：在优选配置中，部件的对由双激光切割并联加工 光束通过通常安装一对聚焦头（42）的导向那里。 旋转定位器（46）通过结合编程的一系列角运动的与编程的一系列联合X和Y的通常已旋转轴聚焦头的直线运动在所述部件的表面，从而机相同功能扫描切割射束 切入各部分的侧壁上。 加工是在惰性气体气氛下进行，并且屑从通过插入部分伯利斯带孔心轴（86）的加工位点抽真空。