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    Fuel assembly with a flow-aiding spacer
    1.
    发明授权
    Fuel assembly with a flow-aiding spacer 失效
    具有流动辅助间隔件的燃油组件

    公开(公告)号：US5420902A

    公开(公告)日：1995-05-30

    申请号：US33768

    申请日：1993-03-18

    申请人： Heinrich Dressel ,  Stefan Linden ,  Hans-Joachim Lippert ,  Werner Meier ,  Roland Rink

    发明人： Heinrich Dressel ,  Stefan Linden ,  Hans-Joachim Lippert ,  Werner Meier ,  Roland Rink

    IPC分类号： G21C3/324 ,  G21C3/32 ,  G21C3/322 ,  G21C3/33 ,  G21C21/00 ,  G21C3/34

    CPC分类号： G21C3/32 ,  G21C3/322 ,  Y02E30/31 ,  Y02E30/38

    摘要： A fuel assembly includes a cluster of mutually parallel fuel rods. A fuel assembly channel laterally surrounds the cluster of fuel rods and has a substantially rectangular cross section and flat channel walls. Grid-like spacers having meshes formed therein each receive a respective one of the fuel rods for guiding the fuel rods in a plurality of axial positions. At least one support spring laterally supports each respective one of the fuel rods in the mesh guiding the fuel rod. Each of the spacers have inner ribs being aligned parallel to the fuel rods and outer peripheral ribs opposite the channel walls. At least some of the inner ribs are fastened to the peripheral ribs, and the outer peripheral ribs are joined together only by the inner ribs.

    摘要翻译： 燃料组件包括一组相互平行的燃料棒。 燃料组件通道横向地围绕着燃料棒组，并且具有基本矩形的横截面和平坦的通道壁。 其中形成有网格的网状间隔件各自容纳相应的一个燃料棒，用于在多个轴向位置引导燃料棒。 至少一个支撑弹簧横向地支撑引导燃料棒的网中的每个相应的一个燃料棒。 每个间隔件具有平行于燃料棒的对准肋和与通道壁相对的外周肋。 内肋中的至少一些被紧固到周边肋，并且外周肋仅通过内肋连接在一起。

    Nuclear reactor fuel assembly with a supporting coolant tube
    2.
    发明授权
    Nuclear reactor fuel assembly with a supporting coolant tube 失效
    核反应堆燃料组件带有支撑冷却剂管

    公开(公告)号：US5327471A

    公开(公告)日：1994-07-05

    申请号：US924056

    申请日：1992-08-28

    申请人： Werner Meier ,  Hans-Joachim Lippert ,  Hans Lettau ,  Kurt Kraus

    发明人： Werner Meier ,  Hans-Joachim Lippert ,  Hans Lettau ,  Kurt Kraus

    IPC分类号： G21C3/30 ,  G21C3/32 ,  G21C3/322 ,  G21C3/33 ,  G21C3/34

    CPC分类号： G21C3/32 ,  G21C3/322 ,  Y02E30/38

    摘要： In order to obviate the use of supporting rods, an upper end piece of a coolant tube penetrates a fuel assembly head of a nuclear reactor fuel assembly and is supported on the fuel assembly head. A lower end piece of the coolant tube is fastened to and supported by a fuel assembly foot, in particular with rods of partial lengths. A supporting skeleton therefore includes the foot and the coolant tube with spacers. The fuel assembly head and a handle are placed on the skeleton and screwed onto the coolant tube after fuel rods are pushed into meshes of the spacer.

    摘要翻译： 为了避免使用支撑杆，冷却剂管的上端件穿过核反应堆燃料组件的燃料组件头并被支撑在燃料组件头上。 冷却剂管的下端部件被紧固到燃料组件脚并由其支撑，特别是具有部分长度的杆。 因此，支撑骨架包括脚和具有间隔件的冷却剂管。 燃料组件头和把手被放置在骨架上并且在将燃料棒推入间隔件的网格之后拧到冷却剂管上。

    Fuel assembly with secured rod ends at the foot
    4.
    发明授权
    Fuel assembly with secured rod ends at the foot 失效
    具有固定杆的燃料组件在脚处终止

    公开(公告)号：US5347560A

    公开(公告)日：1994-09-13

    申请号：US145694

    申请日：1993-10-29

    申请人： Hans-Joachim Lippert ,  Werner Meier

    发明人： Hans-Joachim Lippert ,  Werner Meier

    IPC分类号： G21C3/324 ,  G21C3/32 ,  G21C3/322 ,  G21C3/33 ,  G21C21/00 ,  G21C3/34

    CPC分类号： G21C3/32 ,  G21C3/322 ,  Y02E30/31 ,  Y02E30/38

    摘要： In a fuel assembly, lower end pieces of fuel rods, guide tubes and coolant pipes, etc., are inserted and/or screwed into a base plate and secured against lifting by a bolt. In the case of fuel rods, in particular fuel rods which do not extend over the entire length of normal rods, the bolt is screwed onto connecting parts in such a way that a releasable bayonet closure is produced. In the case of coolant pipes of boiling water reactors, there is provided in particular a screw connection which is irreleasably secured against torsion by the bolt.

    摘要翻译： 在燃料组件中，将燃料棒，引导管和冷却剂管等的下端部件插入和/或螺纹连接到基板中并且通过螺栓固定而不能提升。 在燃料棒的情况下，特别是不延伸在正常棒的整个长度上的燃料棒，螺栓以这样的方式旋拧到连接部件上，使得产生可释放的卡口闭合。 在沸水反应堆的冷却剂管的情况下，特别提供一种不可靠地固定以抵抗螺栓扭转的螺钉连接。

    Fuel assembly for a boiling water reactor with a sealing spring between the foot part and the fuel assembly channel
    5.
    发明授权
    Fuel assembly for a boiling water reactor with a sealing spring between the foot part and the fuel assembly channel 失效
    用于沸水反应器的燃料组件，其在脚部和燃料组件通道之间具有密封弹簧

    公开(公告)号：US5289514A

    公开(公告)日：1994-02-22

    申请号：US33766

    申请日：1993-03-18

    申请人： Hans-Joachim Lippert ,  Werner Meier

    发明人： Hans-Joachim Lippert ,  Werner Meier

    IPC分类号： G21C3/324 ,  G21C3/32 ,  G21C3/322 ,  G21C3/33 ,  G21C21/00

    CPC分类号： G21C3/32 ,  G21C3/322 ,  Y02E30/31 ,  Y02E30/38

    摘要： A gap between a foot part and a channel of a boiling water fuel assembly is sealed against a coolant flow by a spring being supported by a central part thereof against the channel and by sides thereof against the foot part and being clipped and/or clamped on at that location even when all of the fuel rods are removed. For this purpose, the upper edge can extend around the foot part edge or the spring may be constructed as a spring band running entirely around the foot part and being fitted into a lateral groove.

    摘要翻译： 沸水燃料组件的脚部和通道之间的间隙通过弹簧被密封抵靠冷却剂流动，弹簧由其中心部分支撑在通道上并且其侧面抵靠着脚部并被夹紧和/或夹紧在 即使在所有的燃料棒被去除的地方。 为此，上边缘可以围绕脚部边缘延伸，或者弹簧可以被构造为整个围绕脚部并且被装配到横向凹槽中的弹簧带。

    Fuel assembly for a boiling water reactor with adjustable by-pass
    7.
    发明授权
    Fuel assembly for a boiling water reactor with adjustable by-pass 失效
    具有可调旁路的沸水反应堆的燃料组件

    公开(公告)号：US5727040A

    公开(公告)日：1998-03-10

    申请号：US599780

    申请日：1996-02-12

    申请人： Hans-Joachim Lippert ,  Werner Meier

    发明人： Hans-Joachim Lippert ,  Werner Meier

    IPC分类号： G21C3/322 ,  G21C3/332

    CPC分类号： G21C3/322 ,  G21C3/332 ,  G21Y2002/301 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/31 ,  Y02E30/38

    摘要： In a foot of a fuel assembly of a boiling water reactor, an upper edge of a transition member is tight against a lower edge of a fuel assembly casing to substantially prevent bypass flow between them. Rather, bypass apertures are provided therefor over all sides of the fuel assembly casing. In a first position of a base plate lying on the transition member, the bypass apertures on some sides are blocked by lateral surfaces of the base plate, while in a second position of the base plate, the bypass apertures of other sides are blocked. The direction of the bypass flow can thus be predetermined regardless of the position of the fuel assembly casing.

    摘要翻译： 在沸水反应堆的燃料组件的脚下，过渡构件的上边缘紧靠燃料组件壳体的下边缘，以基本上防止它们之间的旁路流动。 相反，旁路孔被设置在燃料组件外壳的所有侧面上。 在位于过渡构件上的基板的第一位置中，一些侧面上的旁路孔被基板的侧表面阻挡，而在基板的第二位置，另一侧的旁路孔被阻挡。 因此，无论燃料组件壳体的位置如何，旁路流的方向都可以被预先确定。

    Fuel assembly for a boiling water reactor, with a foot assembled from standardized parts
    8.
    发明授权
    Fuel assembly for a boiling water reactor, with a foot assembled from standardized parts 失效
    用于沸水反应堆的燃料组件，由标准化部件组装

    公开(公告)号：US5365558A

    公开(公告)日：1994-11-15

    申请号：US033507

    申请日：1993-03-18

    申请人： Hans-Joachim Lippert ,  Werner Meier

    发明人： Hans-Joachim Lippert ,  Werner Meier

    IPC分类号： G21C3/324 ,  G21C3/32 ,  G21C3/322 ,  G21C3/33 ,  G21C21/00 ,  G21C1/04

    CPC分类号： G21C3/32 ,  G21C3/322 ,  Y02E30/31 ,  Y02E30/38

    摘要： A fuel assembly for a boiling water reactor includes a cluster of mutually parallel fuel rods. A fuel assembly channel laterally surrounds the cluster of fuel rods and has open upper and lower ends. A top plate covers the upper open end of the fuel assembly channel and has coolant outlets formed therein. A foot part is assembled from a plurality of individual parts and includes a cast transitional piece having a lower end with an inlet opening formed therein and an upper edge inserted into the open lower end of the fuel assembly channel. The transitional piece defines and surrounds a flow channel widening upward in funnel-like fashion from the inlet opening. The foot part also includes a base plate being disposed at and welded to the upper edge of the transitional piece. The base plate covers the open lower end of the fuel assembly channel and has coolant inlets formed therein. A foot part for a fuel assembly of a boiling water reactor includes a transitional piece defining and surrounding a flow channel widening in funnel-like fashion upward along a center axis. The transitional piece has a lower end with at least one inlet opening formed therein and an upper end with an edge. A one-piece base plate is welded to the edge, covers the flow channel at the top and has coolant inlets formed therein for a flow of coolant through the fuel assembly.

    摘要翻译： 用于沸水反应堆的燃料组件包括一组相互平行的燃料棒。 燃料组件通道横向围绕着燃料棒组，并且具有敞开的上端和下端。 顶板覆盖燃料组件通道的上开口端并具有形成在其中的冷却剂出口。 脚部由多个单独的部件组装并且包括铸造过渡件，其具有形成在其中的入口开口的下端，以及插入燃料组件通道的开口下端的上边缘。 过渡件限定和围绕从入口开口以漏斗状向上加宽的流动通道。 脚部还包括设置在过渡件的上边缘处并焊接到过渡件的上边缘的基板。 基板覆盖燃料组件通道的敞开的下端并且在其中形成冷却剂入口。 用于沸水反应堆的燃料组件的脚部件包括过渡件，其限定并围绕沿着中心轴向上以漏斗状方式加宽的流动通道。 过渡件具有下端，其中形成有至少一个入口，并且具有边缘的上端。 一块底板焊接到边缘，覆盖顶部的流动通道，并且在其中形成有冷却剂入口，用于通过燃料组件的冷却剂流。

    LOWER NOZZLE FOR USE IN NUCLEAR FUEL ASSEMBLY
    10.
    发明申请
    LOWER NOZZLE FOR USE IN NUCLEAR FUEL ASSEMBLY 有权
    用于核燃料组件的低喷嘴

    公开(公告)号：US20140064428A1

    公开(公告)日：2014-03-06

    申请号：US13822516

    申请日：2012-05-11

    申请人： Dirk Blavius ,  Erhard Friedrich ,  Werner Meier

    发明人： Dirk Blavius ,  Erhard Friedrich ,  Werner Meier

    IPC分类号： G21C3/32

    CPC分类号： G21C3/3206 ,  G21C3/322 ,  G21C3/3305 ,  Y02E30/40

    摘要： A lower nozzle for use in a nuclear fuel assembly provided. The lower nozzle is of the type having an axis and comprising a transverse lower tie plate for channelling the coolant through the lower tie plate and a tubular skirt extending axially from the periphery of the lower tie plate, the skirt delimiting an axial housing closed at one end by the lower tie plate and open at the opposite end, a debris filter configured for axial insertion in the housing and snap-fit springs for retaining the debris filter in the housing after insertion. The springs are configured to shift the debris filter axially towards the lower tie plate.

    摘要翻译： 用于核燃料组件的下喷嘴。 下喷嘴是具有轴线的类型，并且包括用于将冷却剂引导通过下连接板的横向下连接板和从下连接板的周边轴向延伸的管状裙部，裙部限定在一个闭合的轴向壳体 通过下连接板结束并在相对端开口，构造成用于轴向插入壳体中的碎屑过滤器和用于在插入之后将碎屑过滤器保持在壳体中的卡合弹簧。 弹簧构造成将碎屑过滤器轴向移向下连接板。