利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

196 条记录 (耗时 0.015 秒)

    Fuel assembly
    31.
    发明授权
    Fuel assembly 有权

    公开(公告)号：EP2750136B1

    公开(公告)日：2018-07-18

    申请号：EP13199718.1

    申请日：2013-12-27

    申请人： Hitachi, Ltd.

    发明人： Mitsuyasu, Takeshi ,  Aoyama, Motoo ,  Nagayoshi, Takuji ,  Katono, Kenichi

    IPC分类号： G21C3/322 ,  G21C3/326 ,  G21C3/04 ,  G21C3/344 ,  G21C3/356

    CPC分类号： G21C3/32 ,  G21C3/04 ,  G21C3/322 ,  G21C3/344 ,  G21C3/356 ,  G21C2003/3265 ,  Y02E30/38

    摘要： In a fuel assembly (1), a plurality of fuel rods (2) are arranged in an array of 10 rows and 10 columns in the cross section of the fuel assembly (1). A flow resistance member (15) is disposed in a central portion in the cross section at upper end portions of partial length fuel rods (2) which are a part of the fuel rods (2). In the flow resistance member (15), resistance members (16, 17) are each disposed between ferrules (9) arranged in an array of 6 rows and 6 columns in the diagonal direction of the flow resistance member (15). Resistance members (16, 17) are each disposed between the ferrules (9) in a peripheral portion of the flow resistance member (15). By disposing the resistance members (16, 17), the pressure loss in an inner region in the cross section of the fuel assembly (1) is increased, and the flow rate of a gas-liquid two-phase flow in an outer region surrounding the inner region is increased.

    Fuel assembly
    33.
    发明公开
    Fuel assembly 有权
    燃料组件

    公开(公告)号：EP2750136A3

    公开(公告)日：2017-12-06

    申请号：EP13199718.1

    申请日：2013-12-27

    申请人： Hitachi, Ltd.

    发明人： Mitsuyasu, Takeshi ,  Aoyama, Motoo ,  Nagayoshi, Takuji ,  Katono, Kenichi

    IPC分类号： G21C3/322 ,  G21C3/326 ,  G21C3/04 ,  G21C3/344 ,  G21C3/356

    CPC分类号： G21C3/32 ,  G21C3/04 ,  G21C3/322 ,  G21C3/344 ,  G21C3/356 ,  G21C2003/3265 ,  Y02E30/38

    摘要： In a fuel assembly (1), a plurality of fuel rods (2) are arranged in an array of 10 rows and 10 columns in the cross section of the fuel assembly (1). A flow resistance member (15) is disposed in a central portion in the cross section at upper end portions of partial length fuel rods (2) which are a part of the fuel rods (2). In the flow resistance member (15), resistance members (16, 17) are each disposed between ferrules (9) arranged in an array of 6 rows and 6 columns in the diagonal direction of the flow resistance member (15). Resistance members (16, 17) are each disposed between the ferrules (9) in a peripheral portion of the flow resistance member (15). By disposing the resistance members (16, 17), the pressure loss in an inner region in the cross section of the fuel assembly (1) is increased, and the flow rate of a gas-liquid two-phase flow in an outer region surrounding the inner region is increased.

    摘要翻译： 在燃料组件（1）中，多个燃料棒（2）在燃料组件（1）的横截面中以10排和10列的排列布置。 在作为燃料棒（2）的一部分的部分长度的燃料棒（2）的上端部处的横截面的中央部分中布置有流阻构件（15）。 在流动阻力部件15中，阻力部件16,17分别配置在流动阻力部件15的对角线方向上排列成6列6列的套圈9之间。 电阻部件（16,17）分别配置在流动阻力部件（15）的周缘部的套圈（9）之间。 通过设置阻力构件（16,17），燃料组件（1）的横截面内的内部区域中的压力损失增加，并且周围外部区域中的气液两相流的流量 内部区域增加。

    NUCLEAR FUEL ASSEMBLY
    34.
    发明公开
    NUCLEAR FUEL ASSEMBLY 审中-公开
    核燃料组件

    公开(公告)号：EP3195324A1

    公开(公告)日：2017-07-26

    申请号：EP15807719.8

    申请日：2015-09-16

    申请人： Lightbridge Corporation

    发明人： TOTEMEIER, Aaron ,  BASHKIRTSEV, Sergey M. ,  MOROZOV, Alexey G.

    IPC分类号： G21C3/32 ,  G21C3/328 ,  G21C3/08

    CPC分类号： G21C3/328 ,  G21C3/08 ,  G21C3/32 ,  Y02E30/38

    摘要： A fuel assembly for use in a core of a nuclear power reactor. The assembly includes a frame shaped and configured to fit within the nuclear reactor internal core structure; and a plurality of helically twisted fuel elements supported by the frame in a fuel rod bundle. Each of the fuel elements includes fissile material. When viewed in a cross-section that is perpendicular to an axial direction of the fuel assembly, the outermost fuel elements of the fuel rod bundle define a substantially circular perimeter. Other features, and a nuclear reactor, are also described.

    摘要翻译： 一种用于核动力堆核心的燃料组件。 该组件包括框架，该框架成形并构造成配合在核反应堆内核结构内; 以及由燃料棒束中的框架支撑的多个螺旋扭曲的燃料元件。 每个燃料元件包括易裂变材料。 当在垂直于燃料组件的轴向方向的横截面中观察时，燃料棒束的最外面的燃料元件限定大致圆形的周边。 还介绍了其他功能和核反应堆。

    LOWER TUBE SOCKET AND LIGHT-WATER REACTOR FUEL ASSEMBLY
    35.
    发明公开
    LOWER TUBE SOCKET AND LIGHT-WATER REACTOR FUEL ASSEMBLY 审中-公开
    MUFFEFÜRUNTERES ROHR UND LEI​​CHTWASSERREAKTOR-BRENNSTABBÜNDEL

    公开(公告)号：EP3086324A1

    公开(公告)日：2016-10-26

    申请号：EP13899373.8

    申请日：2013-12-20

    申请人： China Nuclear Power Technology Research Institute ,  China Guangdong Nuclear Power Holding Co., Ltd.

    发明人： YU, Wenchi ,  LI, Weicai ,  HU, Haixiang ,  WANG, Jiayuan

    IPC分类号： G21C3/32

    CPC分类号： G21C3/3206 ,  G21C3/32 ,  G21C3/3305 ,  G21Y2002/104 ,  G21Y2002/303 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/40

    摘要： A bottom nozzle (100) includes a skirt (10), support blocks (20), transverse blades (30) and longitudinal blades (40). The skirt (10) is a hollow structure and a bottom thereof is provided with corner legs (11) which are protruded downwards, a cavity is defined in the hollow structure, the transverse blades (30) are configured in the cavity, the longitudinal blades (40) are configured in the cavity, the transverse blades (30) and longitudinal blades (40) are firmly connected with the skirt (10), projections of the transverse blades (30) and the longitudinal blades (40) in a level plane are intersectant to form interleaved grids, and the support blocks (20) run through and are fixed on the transverse blades (30) and the longitudinal blades (40). In such a way, the bottom nozzle (100) forms a three-dimensional gridded water passage, thereby improving the filter capacity and generating small water pressure drop.

    摘要翻译： 底部喷嘴（100）包括裙部（10），支撑块（20），横向叶片（30）和纵向叶片（40）。 裙部（10）是中空结构，其底部设置有向下突出的角部支脚（11），在中空结构中限定空腔，横向叶片（30）构造在空腔中，纵向叶片 （40）构造在空腔中，横向叶片（30）和纵向叶片（40）与裙部（10）牢固地连接，横向叶片（30）和纵向叶片（40）的突起处于水平面 相交以形成交错的格栅，并且支撑块（20）穿过并固定在横向叶片（30）和纵向叶片（40）上。 以这种方式，底部喷嘴（100）形成三维网格水通道，从而提高过滤能力并产生小的水压降。