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14 条记录 (耗时 0.009 秒)

    Nuclear reactor fuel element spacer
    3.
    发明授权
    Nuclear reactor fuel element spacer 失效
    核反应堆燃料元件间隙

    公开(公告)号：US3654077A

    公开(公告)日：1972-04-04

    申请号：US3654077D

    申请日：1969-02-17

    申请人： GEN ELECTRIC

    发明人： LASS JAMES L ,  ROSS WILFRED T ,  VENIER DOMINIC A

    IPC分类号： G21C3/34 ,  G21C3/32

    CPC分类号： G21C3/3416 ,  Y02E30/40

    摘要： This describes a spacer for resiliently retaining the elongated fuel rods of a nuclear reactor in spaced relation. The spacer comprises a peripheral support band and dividers therein forming an "egg-crate" configuration of fuel rod passage from a corner thereof. The spacer is designed to minimize the contact area of the fuel rod with the spacer, to minimize distortion and restriction of coolant flow and to minimize the amount of spacer and retainer spring material. One embodiment is especially designed for fabrication from low neutron absorption material, such as Zirconium alloys and for the automated production thereof.

    Spacer grid for nuclear reactor fuel assembly
    4.
    发明授权
    Spacer grid for nuclear reactor fuel assembly 失效
    核反应堆燃料组件的间隙网

    公开(公告)号：US3629067A

    公开(公告)日：1971-12-21

    申请号：US3629067D

    申请日：1968-11-08

    申请人： COMBUSTIBLE NUCLEAIRE

    发明人： DEMAISON PAUL ,  MENISSIER PIERRE ,  SIONNET JEAN

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3416 ,  Y02E30/40

    摘要： In a nuclear reactor fuel assembly comprising a bundle of rods of fissile or fertile material placed within a casing and supported by two rigid end grids, the rods are maintained at different points between the two end support grids by a spacer grid constituted in accordance with the invention by a frame which surrounds the rods inside the casing and supports at least one layer of parallel helical springs, the turns of said springs being tangent to the rods. Preferably, the layers of springs are four in number, the successive layers being disposed alternately in two directions at right angles to each other whilst the helices of layers having the same direction are relatively displaced by one-half pitch.

    Tube bundle assembly
    5.
    发明授权
    Tube bundle assembly 失效
    管套组装

    公开(公告)号：US3837397A

    公开(公告)日：1974-09-24

    申请号：US22616172

    申请日：1972-02-14

    申请人： CA ATOMIC ENERGY LTD

    发明人： PETTIGREW M

    IPC分类号： F28F9/013 ,  G21C3/34 ,  F28D7/00

    CPC分类号： G21C3/3416 ,  F28F9/0132 ,  Y02E30/40 ,  Y10S165/424

    摘要： A tube bundle assembly, for example, a heat exchanger tube bundle or a nuclear fuel element tube bundle, comprises a bundle of laterally spaced tubes, a frame around the outermost tubes, and a lattice of wire cables with their ends held against lateral displacement by the frame and the tubes in the lattice interstices. The cables are deflected round a portion of each tube to space the tubes from one another, and the cables are preferably tensioned against the frame for this purpose.

    摘要翻译： 管束组件，例如热交换器管束或核燃料元件管束，包括一束横向间隔开的管，围绕最外面管的框架，以及线缆的格子，其端部通过 框架和管中的格子间隙。

    Fuel rod spacer system for nuclear fuel assemblies
    6.
    发明授权
    Fuel rod spacer system for nuclear fuel assemblies 失效
    用于核燃料组件的燃油机间隔系统

    公开(公告)号：US3804354A

    公开(公告)日：1974-04-16

    申请号：US23301872

    申请日：1972-03-09

    申请人： UNITED NUCLEAR CORP

    发明人： WEISS J

    IPC分类号： G21C3/34 ,  G21C3/356

    CPC分类号： G21C3/3566 ,  G21C3/3416 ,  Y02E30/40

    摘要： An improved nuclear fuel rod spacer system and support structure is disclosed which includes a cage assembly for receiving a fuel rod in tight bearing engagement therewith. A cage assembly with a fuel rod extending therethrough is constructed to fit within a cell defined by a conventional grid structure and to lockingly engage a specially constructed and cooperating locking structure projecting inwardly of the cell.

    摘要翻译： 公开了一种改进的核燃料棒间隔器系统和支撑结构，其包括用于接收与其紧密轴承接合的燃料棒的保持架组件。 具有延伸穿过其中的燃料棒的笼式组件被构造成装配在由常规栅格结构限定的单元内，并且锁定地接合突出于单元向内突出的特殊构造和配合的锁定结构。

    Grid for nuclear fuel assembly
    7.
    发明授权
    Grid for nuclear fuel assembly 失效
    核燃料组装电网

    公开(公告)号：US4717533A

    公开(公告)日：1988-01-05

    申请号：US766657

    申请日：1985-08-19

    申请人： Jean P. Denizou

    发明人： Jean P. Denizou

    IPC分类号： G21C3/34

    CPC分类号： G21C3/3416 ,  Y02E30/40

    摘要： A grid for supporting and spacing nuclear fuel rods, particularly at the nodes of a triangular array, has a peripheral frame of regular polygonal, typically hexagonal, shape and at least two beds of wires spaced in the longitudinal direction of the fuel assembly. Each bed has at least two series of mutually parallel wires secured to said frame at the end thereof, the wires of a same one of said series being parallel to two opposed side of said frame and all said wires defining passages for said fuel elements.

    摘要翻译： 用于支撑和间隔核燃料棒的格栅，特别是在三角形阵列的节点处，具有在燃料组件的纵向方向上间隔开的规则多边形，通常是六边形形状和至少两根电缆床的外围框架。 每个床具有在其端部固定到所述框架的至少两个相互平行的线系列，所述系列中的同一个线的线平行于所述框架的两个相对侧，并且所有所述线限定用于所述燃料元件的通道。