利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

167 条记录 (耗时 0.014 秒)

    Systems and methods for storing high level radioactive waste
    102.
    发明公开
    Systems and methods for storing high level radioactive waste 有权
    Systeme und Methoden zum Lagern von hochradioaktivem Abfall

    公开(公告)号：EP1585141A1

    公开(公告)日：2005-10-12

    申请号：EP05251655.6

    申请日：2005-03-18

    申请人： Holtec International, Inc.

    发明人： Singh, Krishna P

    IPC分类号： G21C19/06 ,  G21F5/00 ,  G21F9/24 ,  G21F9/34

    CPC分类号： G21F9/36 ,  G21F5/00 ,  G21F7/015 ,  G21F9/34 ,  G21Y2002/201 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2002/60 ,  G21Y2004/30

    摘要： Systems and methods for storing high level waste below grade that affords adequate ventilation of the high level waste storage cavity. In one aspect, the invention is a system comprising: a cavity for receiving and storing a high level waste canister, a major portion of the cavity positioned below grade; at least one inlet ventilation duct extending from an above grade inlet to a below grade outlet into the cavity. In another aspect the invention is a system comprising: a body having a cavity for receiving a canister; an inlet ventilation duct forming a passageway from an ambient air inlet to an outlet into the cavity; and at least one support for supporting a canister in the cavity so that a bottom surface of the canister is lower than a top of the outlet. In other aspects, the invention is a method of storing high level waste canister using the systems.

    摘要翻译： 用于存储高级废物低于等级的系统和方法，为高级废物储存腔提供足够的通风。 一方面，本发明是一种系统，包括：用于接收和存储高级废物罐的空腔，所述空腔的主要部分位于等级以下; 至少一个入口通风管道，其从上一级入口延伸到下一级出口进入空腔。 在另一方面，本发明是一种系统，包括：具有用于接收罐的空腔的主体; 入口通风管道，其形成从环境空气入口到出口进入空腔的通道; 以及至少一个用于在腔中支撑罐的支撑件，使得罐的底表面低于出口的顶部。 在其他方面，本发明是使用该系统存储高级废料罐的方法。

    A method and a device for nuclear fuel handling
    103.
    发明公开
    A method and a device for nuclear fuel handling 失效

    公开(公告)号：EP0844620A3

    公开(公告)日：1998-06-03

    申请号：EP97203615.6

    申请日：1997-11-19

    申请人： ABB ATOM AB

    发明人： Hellmark, Sören ,  Norbäck, Jan

    IPC分类号： G21C19/06 ,  G21C19/26

    CPC分类号： G21C3/335 ,  G21Y2004/50 ,  Y02E30/40

    摘要： The present invention relates to a method and a device for fuel handling in a nuclear power plant of pressurized-water type comprising at least one fuel assembly (1) with a top part (5) and a bottom part (6), in its turn comprising a plurality of fuel rods (2). The fuel handling comprises extracting the fuel rods (2) in their entirety, or parts thereof, from the substantially vertically arranged fuel assembly (1) from above, either through the top part (5) of the fuel assembly (1) or through the bottom part (6) thereof. The fuel rods (2) extracted from the fuel assembly (1) are arranged to be turnable through 180° around a transverse axis (t) by arranging them in a normally vertically arranged turnable rod magazine (16).

    Store for radioactive material
    105.
    发明公开
    Store for radioactive material 失效
    储存放射性物质

    公开(公告)号：EP0317312A3

    公开(公告)日：1990-01-31

    申请号：EP88310854.0

    申请日：1988-11-17

    申请人： COSTAIN ENGINEERING LIMITED ,  Dawson, Peter trading as D.G.P. (Consulting Engineers)

    发明人： Dobson, Peter Wardle ,  Myall, Michael George ,  Duncan, John MacDonagh

    IPC分类号： G21C19/06

    CPC分类号： G21C19/06

    摘要： A store for radioactive material housed in transportable stillages (30) comprises a walled structure providing cells (26) closed at the top thereof by floor slabs (36) which are removable to provide access openings for the stillages. The stillages are a close sliding fit in vertical guide rails on the side walls (20, 21) of the cells. The cells are arranged in parallel rows and the side walls (20, 21) of each row of cells are fitted with rails for a carriage for transporting the stillages. The carriage comprises a shield hood fitted with separate lifting mechanisms for a floor slab and a stillage, the shield hood being large enough to span two adjacent floor slabs of a cell and to accommodate a floor slab and a stillage side by side. The walls, floor slabs and shield hood have shielding properties sufficient to prevent escape of radiation therethrough, and the lower edge of the shield hood is spaced with small clearance from the top surfaces of the floor slabs and cell walls. The structure is designed to maintain its integrity under a seismic load not less than that equivalent to a horizontal ground acceleration of 0.25g.

    Core assembly storage structure
    109.
    发明公开
    Core assembly storage structure 失效
    LagerstrukturfürSpaltzonenelemente。

    公开(公告)号：EP0240603A2

    公开(公告)日：1987-10-14

    申请号：EP86116524.9

    申请日：1986-11-27

    申请人： ROCKWELL INTERNATIONAL CORPORATION

    发明人： Brunings, Jay E. ,  Jones, Charles E., Jr.

    IPC分类号： G21C19/06 ,  G21C19/32

    CPC分类号： G21C19/06 ,  G21C19/32

    摘要： A structure for the storage of core assemblies (12) from a liquid metal-cooled nuclear reactor. The structure comprises an enclosed housing having a substantially flat horizontal top plate (48), a bottom plate (50) and substantially vertical wall members (52) extending therebetween. A plurality of thimble members (54) extend downwardly through the top plate. Each thimble member is closed at its bottom end and has an open end adjacent said top plate. Each thimble member has a length and diameter greater than that of the core assembly (64) to be stored therein. The housing is provided with an inlet duct (56) for the admission of cooling air and an exhaust (58) duct for the discharge of air therefrom, such that when hot core assemblies are placed in the thimbles, the heat generated will by convection cause air to flow from the inlet duct around the thimbles and out the exhaust duct maintaining the core assemblies at a safe temperature without the necessity of auxiliary powered cooling equipment.

    摘要翻译： 用于从液态金属冷却的核反应堆存储芯组件（12）的结构。 该结构包括具有基本平坦的水平顶板（48），底板（50）和在它们之间延伸的基本垂直壁构件（52）的封闭壳体。 多个套管构件（54）向下延伸穿过顶板。 每个套管构件在其底端处封闭，并且具有邻近所述顶板的开口端。 每个套管构件的长度和直径大于芯组件（64）的长度和直径，以被存储在其中。 壳体设置有用于承认冷却空气的入口管道（56）和用于从其排出空气的排气（58）管道，使得当热芯组件放置在套管中时，由对流引起的热量产生 空气从套管周围的入口管道流出并排出排气管道，将核心组件保持在安全的温度，而不需要辅助动力冷却设备。