公开(公告)号：WO2013172889A1

公开(公告)日：2013-11-21

申请号：PCT/US2013/026242

申请日：2013-02-15

Applicant: BABCOCK & WILCOX MPOWER, INC.

Inventor： LEE, Jeffrey, T. ,  PABIS, George, S. ,  RIDGEWAY, Roger, D.

IPC: G21C5/06

CPC classification number: G21C3/33 ,  G21C3/3206 ,  G21C3/3305 ,  Y02E30/40

Abstract: A fuel assembly including a plurality of fuel rods arranged mutually in parallel wherein the fuel rods include a fissile material, a plurality of guide tubes arranged in parallel with and interspersed amongst the fuel rods, an upper end fitting connected with upper ends of the guide tubes, and a lower end fitting connected with lower ends of the guide tubes. At least one of the upper end fitting and the lower end fitting includes a grid formed by interlocking metal strips secured together at intersections between the metal strips.

Abstract translation: 一种燃料组件，包括相互并联布置的多个燃料棒，其中所述燃料棒包括易裂变材料，多个导管与所述燃料棒平行布置并散布在所述燃料棒中;上端配件，其与所述导管的上端连接 以及与引导管的下端连接的下端配件。 上端配件和下端配件中的至少一个包括通过互锁的金属条形成的格栅，金属条固定在金属条之间的交叉处。

公开(公告)号：WO2014152851A2

公开(公告)日：2014-09-25

申请号：PCT/US2014/027975

申请日：2014-03-14

Applicant: BABCOCK & WILCOX MPOWER, INC.

Inventor： RIDGEWAY, Roger, D. ,  AUSTIN, Jeffrey, W. ,  LEE, Jeffrey, T.

IPC: B23K37/04

CPC classification number: B23K37/04 ,  B23K37/0426

Abstract: A spacer grid welding fixture comprises a frame sized to receive an assembled spacer grid comprising a first set of parallel straps and a second set of parallel straps oriented orthogonally to the first set of parallel straps, the first and second sets of parallel straps interlocked together by slots cut into the straps. A first set of grid engagement bars is placed on a first side of the spacer grid with each grid engagement bar arranged parallel with the straps of the first set of parallel straps and engaging the straps of the second set of parallel straps. A second set of grid engagement bars is placed on an opposite second side of the spacer grid with each grid engagement bar arranged parallel with the straps of the second set of parallel straps and engaging the straps of the first set of parallel straps.

Abstract translation: 间隔栅格焊接夹具包括框架，其尺寸被设计成接收包括第一组平行条带的组合隔离栅格和与第一组平行条带正交定向的第二组平行带，第一组和第二组平行带通过 插槽插入带子。 第一组栅格接合杆放置在间隔栅格的第一侧上，每个栅格接合杆平行于第一组平行带的带并且与第二组平行带的带接合。 第二组栅格接合杆放置在间隔栅格的相对的第二侧上，每个栅格接合杆平行于第二组平行带的带并且与第一组平行带的带接合。

公开(公告)号：WO2014197064A2

公开(公告)日：2014-12-11

申请号：PCT/US2014/025748

申请日：2014-03-13

Applicant: BABCOCK & WILCOX MPOWER, INC.

Inventor： LEE, Jeffrey, T. ,  BARGER, Earl, B.

IPC: G21C19/06

CPC classification number: G21C21/02

Abstract: A pellet magazine includes a plurality of pellet bores sized to receive pellets for loading into a fuel rod. A fuel rod loading system includes a plurality of pellet loading stations each designated to load a single pellet type into one or more pellet bores of the pellet magazine, a rod loading station configured to unload pellets from the pellet bores of the pellet magazine into a fuel rod, and a conveyance system configured to transport the pellet magazine to the loading stations and then to the rod loading station in a defined sequence.

Abstract translation: 颗粒料盒包括多个颗粒孔，其尺寸被设计成接收用于装载到燃料棒中的颗粒。 燃料棒装载系统包括多个颗粒装载站，每个颗粒装载站被指定为将单个颗粒类型装载到颗粒料盒的一个或多个颗粒孔中，杆装载站被配置为将颗粒从颗粒料盒的颗粒孔卸载到燃料 杆和输送系统，其被配置成以确定的顺序将颗粒料盒运送到装载站，然后运送到杆装载站。

公开(公告)号：WO2013165525A2

公开(公告)日：2013-11-07

申请号：PCT/US2013/026457

申请日：2013-02-15

Applicant: BABCOCK & WILCOX MPOWER, INC.

Inventor： LEE, Jeffrey, T. ,  BARGER, Earl, B ,  FITZNER, Scott, L. ,  NILLES, Michael, J.

IPC: G21C3/10 ,  B23K11/00

CPC classification number: G21C3/10 ,  B23K11/002 ,  G21C21/02 ,  Y02E30/40

Abstract: An open end of a cladding tube of a nuclear fuel rod is plugged with an end plug having a main body and a cylindrical bond portion extending from the main body and terminating in a cladding seat with reduced diameter compared with the cylindrical bond portion. The plugging includes clamping the open end of the cladding tube against the cladding seat of the end plug and, while clamping, applying electrical current between the end plug and the open end of the cladding tube so as to force the open end of the cladding tube over the cladding seat and slide over the cylindrical bond portion of the end plug and to generate a resistance weld between a cylindrical bonding surface of the cylindrical bond portion of the end plug and the inside surface of the open end of the cladding tube.

Abstract translation: 核燃料棒的包层管的开口端与具有主体的端塞和从主体延伸的圆柱形接合部分端接，并且与圆柱形接合部相比直径缩小的包层座。 插塞包括将包层管的开口端夹紧在端塞的包层座上，并且在夹持期间，在端塞和包层管的开口端之间施加电流，以迫使包层管的开口端 并且在端塞的圆柱形接合部分上滑动，并且在端塞的圆筒形接合部分的圆柱形接合表面和包层管的开口端的内表面之间产生电阻焊接。