FUEL ASSEMBLY
    2.
    发明申请
    FUEL ASSEMBLY 有权
    燃油总成

    公开(公告)号:US20120014496A1

    公开(公告)日:2012-01-19

    申请号:US13257353

    申请日:2010-03-03

    IPC分类号: G21C3/324

    CPC分类号: G21C3/32 G21C3/324 Y02E30/40

    摘要: A fuel assembly for a nuclear boiling water reactor is provided. The reactor comprises a plurality of such fuel assemblies and a plurality of control rods. Each control rod is insertable between the fuel assemblies. The fuel assembly has a longitudinal center axis and includes a plurality of elongated fuel rods and an elongated channel box. The channel box has inner sides, facing the fuel rods, and outer sides. Each inner and outer side has a longitudinal center line extending in parallel with the center axis and along the length of the channel box. A number of protrusions are distributed along the center line of at least two of the outer sides. The protrusions are configured to ensure a minimum distance between the outer side and an adjacent control rod and to enable the control rod to easily slide over and on top of the protrusions.

    摘要翻译: 提供了一种用于核沸水反应堆的燃料组件。 反应器包括多个这样的燃料组件和多个控制棒。 每个控制杆可插入在燃料组件之间。 燃料组件具有纵向中心轴线并且包括多个细长的燃料棒和细长的通道箱。 通道箱具有内侧,面向燃料棒和外侧。 每个内侧和外侧具有与中心轴平行且沿着通道箱的长度延伸的纵向中心线。 多个突起沿着至少两个外侧的中心线分布。 突起被配置为确保外侧和相邻控制杆之间的最小距离,并且使得控制杆能够容易地在突起上方滑动。

    Use of boron or enriched boron 10 in UO2
    3.
    发明申请
    Use of boron or enriched boron 10 in UO2 审中-公开
    在UO2中使用硼或富集硼10

    公开(公告)号:US20080031398A1

    公开(公告)日:2008-02-07

    申请号:US11732524

    申请日:2007-04-04

    IPC分类号: G21C3/02

    摘要: The present invention provides a plurality of fuel rods (10A-10D) containing fuel for use in nuclear fuel assembly (17), where an actinide-boron-containing compound or compounds (6B-6E) is used as a burnable poison and is distributed in the actinide fuel in a majority of fuel containing rods (10A-10C) in the assembly, and where boron or enriched boron is contained in more than 50% of the fuel rods in the assembly (17).

    摘要翻译: 本发明提供了多个用于核燃料组件(17)的燃料的燃料棒(10A-10D),其中使用含锕系元素的硼或化合物(6B-6E)作为可燃烧 并且在组件中的多数燃料含有棒(10A-10C)中分布在锕系燃料中,并且其中在组件(17)中超过50%的燃料棒中含有硼或富含硼的硼。

    Spacer grid
    5.
    发明授权
    Spacer grid 有权
    间隔网格

    公开(公告)号:US08958523B2

    公开(公告)日:2015-02-17

    申请号:US12993703

    申请日:2009-05-20

    IPC分类号: G21C3/34

    摘要: The invention relates to a final, ready to use, spacer grid for a nuclear boiling water reactor. The final spacer grid comprises: i) a spacer grid structure made of an alloy that has been formed and assembled such that it constitutes a spacer grid, and ii) an outer oxide coating on the surface of the spacer grid structure. Said alloy is a Ni base alloy that consists of the following: (table) The invention also relates to a method of manufacturing the final spacer grid according to the invention.

    摘要翻译: 本发明涉及用于核沸水反应器的最终的即用型间隔网格。 最后的间隔栅格包括:i)由已经形成和组装的合金制成的间隔栅格结构,使得其构成间隔栅格,以及ii)在间隔栅格结构的表面上的外部氧化物涂层。 所述合金是由以下组成的Ni基合金:(表)本发明还涉及根据本发明制造最终间隔栅格的方法。

    Spacer grid for positioning of fuel rods
    6.
    发明授权
    Spacer grid for positioning of fuel rods 有权
    用于定位燃料棒的间隔栅格

    公开(公告)号:US08359732B2

    公开(公告)日:2013-01-29

    申请号:US12007766

    申请日:2008-01-15

    IPC分类号: B23P19/00

    摘要: A method of manufacturing an optimized sheet metal (1) of a zirconium based alloy is described, which optimized sheet metal (1) defines a sheet plane (BA). The method comprises the steps of providing a sheet metal (2) of a zirconium based. alloy, subjecting the sheet metal (2) to at least a preparing cold rolling and a final cold rolling, wherein the preparing cold rolling and the final cold rolling are both performed in a common rolling direction, and heat treating the sheet metal (1) between the preparing cold rolling and the final cold rolling so that the zirconium based alloy is partially re-crystallized. A method of manufacturing a spacer grid using an optimized sheet metal (1) according to the invention is also described.

    摘要翻译: 描述了制造锆基合金的优化的金属板(1)的方法,其优化的金属板(1)限定了片材平面(BA)。 该方法包括提供锆基金属片(2)的步骤。 合金,将金属板(2)进行至少准备冷轧和最终冷轧,其中准备冷轧和最终冷轧都沿共同的轧制方向进行,并且对金属板(1)进行热处理, 在准备冷轧和最终冷轧之间,使得锆基合金部分地再结晶。 还描述了使用根据本发明的优化的金属片(1)制造间隔栅格的方法。

    TRIURANIUM DISILICIDE NUCLEAR FUEL COMPOSITION FOR USE IN LIGHT WATER REACTORS
    7.
    发明申请
    TRIURANIUM DISILICIDE NUCLEAR FUEL COMPOSITION FOR USE IN LIGHT WATER REACTORS 有权
    三氯乙烯核燃料组合物用于轻水反应堆

    公开(公告)号:US20120002778A1

    公开(公告)日:2012-01-05

    申请号:US12827237

    申请日:2010-06-30

    IPC分类号: G21C3/30 G21G4/00

    CPC分类号: G21C3/60 Y02E30/38

    摘要: The present invention relates to nuclear fuel compositions including triuranium disilicide. The triuranium disilicide includes a uranium component which includes uranium-235. The uranium-235 is present in an amount such that it constitutes from about 0.7% to about 5% by weight based on the total weight of the uranium component of the triuranium disilicide. The nuclear fuel compositions of the present invention are particularly useful in light water reactors.

    摘要翻译: 本发明涉及核燃料组合物,包括三硅化二锡。 三硅化三铝包括铀-235的铀成分。 铀-235存在的量使得其占三取代三硅化铀的铀组分的总重量的约0.7重量%至约5重量%。 本发明的核燃料组合物在轻水反应器中特别有用。

    Use of isotopically enriched actinide fuel in nuclear reactors
    8.
    发明申请
    Use of isotopically enriched actinide fuel in nuclear reactors 审中-公开
    在核反应堆中使用同位素富集的锕系燃料

    公开(公告)号:US20060251206A1

    公开(公告)日:2006-11-09

    申请号:US11352789

    申请日:2006-02-13

    IPC分类号: G21C3/00

    CPC分类号: G21C3/62 Y02E30/33 Y02E30/38

    摘要: The present invention provides a nuclear fuel rod, assembly comprising an actinide nitride such as uranium nitride, suitable for use in nuclear reactors, including those based substantially on thermal fission, such as light and heavy water or gas-cooled nuclear reactors. The fuel contains nitrogen which has been isotopically enriched to at least about 50% 15N, most preferably above 95%. The fuel can be in the form of particles, pellets, in annular form or other forms having high surface to volume ratios.

    摘要翻译: 本发明提供了一种核燃料棒,其组合包括适用于核反应堆的锕系氮化物,例如氮化铀,其包括基本上基于热裂变的那些,例如轻质和重水或气体冷却的核反应堆。 燃料含有同位素富集至少约50%,最优选高于95%的氮气。 燃料可以是具有高表面与体积比的环状或其它形式的颗粒,颗粒。

    Control rod for nuclear reactors
    10.
    发明授权
    Control rod for nuclear reactors 失效
    核反应堆控制棒

    公开(公告)号:US5225151A

    公开(公告)日:1993-07-06

    申请号:US795482

    申请日:1991-11-21

    IPC分类号: G21C7/10 G21C7/113 G21C7/24

    摘要: In a control rod for nuclear reactors with elongated channels for boron carbide or other neutron-absorbing material which swells upon neutron irradiation, the neutron-absorbing material (20a), in at least some of the channels (18b), is provided with projecting portions (20a') or arranged in a casing with portions projecting towards the channel walls. Further, the projecting portions are adapted to form between them and the channel walls unfilled spaces (40) for taking up swelling neutron-absorbing material.

    摘要翻译: 在用于具有用于碳化硼或其他中子吸收材料的细长通道的核反应堆的控制棒中,其在中子照射时溶胀,至少一些通道(18b)中的中子吸收材料(20a)设置有突出部分 (20a')或布置在具有朝向通道壁突出的部分的壳体中。 此外,突出部分适于在它们之间形成用于吸收溶胀中子吸收材料的通道壁未填充空间(40)。