利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

79 条记录 (耗时 0.013 秒)

    A device and a method for preventing shadow corrosion
    21.
    发明公开
    A device and a method for preventing shadow corrosion 有权
    Anordnung und Verfahren zum Schutz gegen Schattenkorrosion

    公开(公告)号：EP0986069A1

    公开(公告)日：2000-03-15

    申请号：EP99116933.5

    申请日：1999-08-27

    申请人： ASEA BROWN BOVERI AB

    发明人： Wikmark, Gunnar

    IPC分类号： G21C3/00 ,  G21C7/10

    CPC分类号： G21C7/10 ,  G21C3/00 ,  G21C17/0225 ,  G21Y2002/103 ,  G21Y2004/10 ,  G21Y2004/20 ,  G21Y2004/303 ,  Y02E30/39

    摘要： A device comprising a first component which comprises a zirconium-based alloy, and a second component of a type that can form a counter-electrode in relation to the first component, said first and second components being arranged at a short distance from each other, with an electrically conducting medium between them and being subjected to radioactive radiation through a radiation field. The device comprises a means arranged to electrically insulate at least a part of the second component from the first component in order to avoid shadow-corrosion on the first component. A method for preventing shadow-corrosion on the first component is characterised in that at least a part of the second component is electrically insulated from the first component.

    摘要翻译： 一种装置，包括：第一部件，其包括锆基合金;以及第二部件，其类型可以相对于第一部件形成对电极，所述第一和第二部件布置在彼此短距离处， 在它们之间具有导电介质并且通过辐射场经受放射性辐射。 该装置包括布置成使第二部件的至少一部分与第一部件电绝缘的装置，以避免第一部件上的阴影腐蚀。 防止第一部件上的阴影腐蚀的方法的特征在于，第二部件的至少一部分与第一部件电绝缘。

    EP0871958A4 -
    22.
    发明公开
    EP0871958A4 - 失效
    EP0871958A4 - Google专利

    公开(公告)号：EP0871958A4

    公开(公告)日：1998-11-18

    申请号：EP96927386

    申请日：1996-08-14

    IPC分类号： G21C5/12 ,  G21C1/00 ,  G21C1/02 ,  G21C1/06 ,  G21C1/08 ,  G21C3/00 ,  G21C3/326 ,  G21C3/328 ,  G21C5/02 ,  G21C5/18 ,  G21C5/20

    CPC分类号： G21C1/024 ,  G21C1/06 ,  G21C1/08 ,  G21C3/328 ,  G21C5/02 ,  G21Y2002/304 ,  G21Y2002/50 ,  G21Y2002/60 ,  G21Y2002/601 ,  G21Y2004/10 ,  G21Y2004/30 ,  G21Y2004/40 ,  G21Y2004/60 ,  Y02E30/34 ,  Y02E30/38

    摘要： Seed-blanket type nuclear reactor cores (10, 100) are employed to burn thorium fuel with conventional reactor fuels, including nonproliferative enriched uranium, and weapons or reactor grade plutonium. In a first embodiment, the core (10) is completely nonproliferative in that neither the reactor fuel, nor the generated waste material, can be used to manufacture nuclear weapons. In a second embodiment of the invention, the core (100) is employed to burn large amounts of weapons grade plutonium with the thorium, and provides a convenient mechanism by which stockpiled weapons grade plutonium can be destroyed and converted into electrical energy. The cores of both embodiments are comprises of a plurality of seed-blanket units (12, 102) which have centrally located seed regions (18, 104) that are surrounded by annular blanket regions (20, 106). The seed regions contain the uranium or plutonium fuel rods (22, 110), while the blanket regions contain thorium fuel rods (26, 118). The moderator/fuel volume ratios and relative sizes of the seed and blanket regions are optimized so that neither embodiment generates waste materials that can be employed for manufacturing nuclear weapons. A novel refueling scheme is also employed with the first embodiment to maximize seed fuel utilization, and further ensure that the spent fuel cannot be employed for manufacturing nuclear weapons.

    摘要翻译： 采用种子毯型核反应堆堆芯（10,100），用常规反应堆燃料（包括非增殖性浓缩铀）和武器或反应堆级钚燃烧钍燃料。 在第一实施例中，核心（10）完全不增殖，因为反应堆燃料和生成的废料都不能用于制造核武器。 在本发明的第二实施例中，核心（100）用于用钍燃烧大量的武器级钚，并且提供便利的机制，通过该机制可以销毁储存的武器级钚并将其转化为电能。 两个实施例的芯包括多个种子毯单元（12,102），所述种子毯单元具有居中定位的种子区（18,104），所述种子区由环形毯区（20,106）围绕。 种子区域包含铀或钚燃料棒（22,110），而毯子区域包含钍燃料棒（26,118）。 对种子和毯子区域的减速剂/燃料体积比和相对尺寸进行优化，使得两个实施例都不会产生可用于制造核武器的废料。 第一种实施方案也采用了新的加油方案，以最大限度地利用种子燃料，并进一步确保乏燃料不能用于制造核武器。

    Nuclear fuel assembly
    27.
    发明公开
    Nuclear fuel assembly 失效
    Kernbrennstoffanordnung。

    公开(公告)号：EP0230613A2

    公开(公告)日：1987-08-05

    申请号：EP86117608.9

    申请日：1986-12-17

    申请人： HITACHI, LTD.

    发明人： Aoyama, Motoo ,  Bessho, Yasunori ,  Morimoto, Yuichi ,  Maruyama, Hiromi ,  Uchikawa, Sadao

    IPC分类号： G21C3/00

    CPC分类号： G21C3/328 ,  G21Y2002/201 ,  G21Y2004/30 ,  Y02E30/38

    摘要： A fuel assembly comprises a plurality of fuel rods (2), moderator rods (6) disposed among the fuel rods (2), upper and lower tie plates (3, 4) for holding both end portions of the fuel rods (2) and the moderator rods (6), and fuel spacers (5) for keeping distances between the fuel rods (2) and the moderator rods (6) constant. The fuel assembly is characterized in that there is provided a space region (8, l5) extending from the upper tie plate (3) to the lower to plate (4) and having a space enough to dispose at least one of the fuel rods (2), at least one of the moderator rods (6) being disposed adjacent to the space region (8, l5), and the fuel rods (2), the moderator rod (6) and the space region (8, l5) are disposed in a grid form.

    TUBULAR BODY CONTAINING SIC FIBER AND METHOD FOR PRODUCING THE SAME
    29.
    发明公开
    TUBULAR BODY CONTAINING SIC FIBER AND METHOD FOR PRODUCING THE SAME 审中-公开

    公开(公告)号：EP3647043A1

    公开(公告)日：2020-05-06

    申请号：EP19205304.9

    申请日：2019-10-25

    申请人： Admap, Inc.

    发明人： KAWAHARA, Fumitomo

    IPC分类号： B32B1/08 ,  B32B5/12 ,  B32B5/26 ,  B32B3/30 ,  B32B9/00 ,  G21C3/00

    摘要： [Problem]
    To provides a tubular body containing SiC fibers and having a high thermal conductivity, and a method for manufacturing the same.
    [Means for solving the problem]
    A first SiC layer formed into a tubular shape and made of a SiC material, a first groove which spirals in one direction along the outer periphery of the first SiC layer, a first SiC fiber layer made of a plurality of SiC fibers wound along the first groove, a second SiC fiber layer made of a plurality of SiC fibers wound outside of the first SiC fiber layer in a direction different from the one direction, and a second SiC layer which is made of a SiC material and which covers the first SiC layer, the first SiC fiber layer, and the second SiC fiber layer are provided. The first SiC fiber layer and the second SiC fiber layer are separated from each other at intersections of the first SiC fiber layer and the second SiC fiber layer.