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    Heterogeneous core designs and thorium based fuels for heavy water reactors
    2.
    发明授权
    Heterogeneous core designs and thorium based fuels for heavy water reactors 有权

    公开(公告)号：US11056248B2

    公开(公告)日：2021-07-06

    申请号：US14154633

    申请日：2014-01-14

    申请人： ATOMIC ENERGY OF CANADA LIMITED

    发明人： Blair P. Bromley

    IPC分类号： G21C5/20 ,  G21C3/326 ,  G21C3/62 ,  G21C7/26

    摘要： A channel type heterogeneous reactor core for a heavy water reactor for burnup of thorium based fuel is provided. The heterogeneous reactor core comprises at least one seed fuel channel region comprising seed fuel channels for receiving seed fuel bundles of thorium based fuel; and at least one blanket fuel channel region comprising blanket fuel channels for receiving blanket fuel bundles of thorium based fuel; wherein the seed fuel bundles have a higher percentage content of fissile fuel than the blanket fuel bundles. The seed fuel channel region and the blanket fuel channel region may be set out in a checkerboard pattern or an annular pattern within the heterogeneous reactor core. Fuel bundles for the core are also provided.

    NUCLEAR CORE COMPONENT
    3.
    发明申请
    NUCLEAR CORE COMPONENT 审中-公开
    核心部件

    公开(公告)号：US20130114780A1

    公开(公告)日：2013-05-09

    申请号：US13288315

    申请日：2011-11-03

    申请人： David Anthony Boatwright ,  Anand Madhav Garde

    发明人： David Anthony Boatwright ,  Anand Madhav Garde

    IPC分类号： G21C7/26 ,  G21C3/06

    CPC分类号： G21C3/18 ,  G21C7/10 ,  Y02E30/39

    摘要： A fuel rod or control rod for a nuclear reactor that has a spacer interposed between an upper end plug and a plenum spring which extends between the spacer and the fissile or absorber material. Preferably, the spacer is a relatively thin sleeve with a radially extending lip that sits above the coil spring wound at least in part around the sleeve.

    摘要翻译： 一种用于核反应堆的燃料棒或控制杆，其具有插入在上端塞和在间隔件和易裂变材料或吸收材料之间延伸的增压弹簧之间的间隔件。 优选地，间隔件是相对薄的套筒，其具有径向延伸的唇缘，其位于螺旋弹簧上方至少部分地围绕套筒缠绕。

    NEUTRON ABSORBER CONSISTING OF REFRACTORY METAL INFUSED WITH DISCRETE NEUTRON ABSORBER
    4.
    发明申请
    NEUTRON ABSORBER CONSISTING OF REFRACTORY METAL INFUSED WITH DISCRETE NEUTRON ABSORBER 有权
    用绝对中性吸收器输入的中性吸收材料

    公开(公告)号：US20120281805A1

    公开(公告)日：2012-11-08

    申请号：US13226552

    申请日：2011-09-07

    申请人： Michael J. Hone ,  Carroll J. Long, JR. ,  Radu Pomirleanu ,  Mark P. Goldenfield

    发明人： Michael J. Hone ,  Carroll J. Long, JR. ,  Radu Pomirleanu ,  Mark P. Goldenfield

    IPC分类号： G21C7/26

    CPC分类号： G21C7/10 ,  G21C7/24 ,  Y02E30/39

    摘要： The present invention provides a gray rod control assembly for a nuclear reactor. The gray rod control assembly includes a spider assembly having a plurality of radial extending flukes and a plurality of gray rod assemblies coupled to the flukes of the spider assembly. Each of the gray rod assemblies includes an elongated tubular member, a first end plug, a second end plug, and a neutron absorber. The neutron absorber includes a matrix of refractory metal fabricated to be porous into which a metal or metal alloy is infused. The neutron absorber is distributed among a plurality of the gray rod assemblies.

    摘要翻译： 本发明提供一种用于核反应堆的灰棒控制组件。 灰棒控制组件包括具有多个径向延伸吸头的多个蜘蛛组件和联接到该蜘蛛组件的吸头的多个灰棒组件。 每个灰棒组件包括细长管状构件，第一端塞，第二端塞和中子吸收器。 中子吸收器包括制造为多孔的难熔金属基体，其中注入金属或金属合金。 中子吸收器分布在多个灰色杆组件中。

    Self rupturing gas moderator rod for a nuclear reactor
    5.
    发明授权
    Self rupturing gas moderator rod for a nuclear reactor 失效
    用于核反应堆的自破裂气体调节杆

    公开(公告)号：US4371495A

    公开(公告)日：1983-02-01

    申请号：US228007

    申请日：1981-01-23

    申请人： George R. Marlatt

    发明人： George R. Marlatt

    IPC分类号： G21C3/32 ,  G21C3/326 ,  G21C7/22 ,  G21C7/27 ,  G21C7/26

    CPC分类号： G21C3/326 ,  G21C7/22 ,  Y02E30/34 ,  Y02E30/38 ,  Y02E30/39

    摘要： An arrangement for controlling the moderation of a nuclear reactor which includes multiple fuel assemblies each of which includes top and bottom nozzles with fuel rods and control rod guide thimbles located therebetween. Certain ones of said assemblies include at least one tube initially filled with a gas. One end of the tube rests on the lower nozzle upper surface while the upper end terminates at a point just below the lower plate in the upper nozzle. A spike immovably fixed in the lower plate of the upper nozzle is directed downwardly toward the end of the tube. As the tube expands or grows during operation in a reactor, and at a point where the criticality factor may proceed to less than one, the expanded tube will be pierced by the spike and thus permit the escape of gas from the tube which is then replaced by water coolant circulating through the reactor. The additional water represented by the filled tube will act to slow down fast neutrons to a thermal neutron level and thus provide a greater amount of neutron effective in carrying forward the fissioning process.

    摘要翻译： 一种用于控制核反应堆的调节的装置，其包括多个燃料组件，每个燃料组件包括顶部和底部喷嘴，燃料棒和控制棒导向套管位于它们之间。 所述组件中的某些组件包括至少一个最初填充有气体的管。 管的一端位于下喷嘴上表面上，而上端终止于上喷嘴中下板正下方的一点。 不可移动地固定在上喷嘴的下板中的钉指向下朝向管的端部。 当管在反应器运行期间膨胀或生长时，并且在临界因子可能进行到小于1的点，膨胀管将被尖钉刺穿，并且因此允许气体从管中逸出，然后被替换 通过冷却剂循环通过反应器。 由填充管代表的附加水将用于将快中子减慢到热中子水平，从而提供更大量的中子有效地推进分裂过程。