CHANNEL CONFINEMENT SYSTEM AND METHOD FOR DRY-STORAGE OF BWR FUEL BUNDLES
    4.
    发明申请
    CHANNEL CONFINEMENT SYSTEM AND METHOD FOR DRY-STORAGE OF BWR FUEL BUNDLES 有权
    用于BWR燃料组件干燥储存的通道限制系统和方法

    公开(公告)号:US20100027733A1

    公开(公告)日:2010-02-04

    申请号:US12183667

    申请日:2008-07-31

    IPC分类号: G21C3/32

    摘要: A nuclear reactor fuel bundle confinement system including: a fuel bundle with an upper tie plate; a channel enclosing the fuel bundle; a handle for the fuel bundle extending above the fuel bundle; an upper fuel particle barrier positioned over the upper tie plate and above the fuel rods, wherein the fuel particle barrier has a permeable panel at least co-extensive with an open area of the upper tie plate; a slot in the permeable panel through which passes the handle, and a closure device on the fuel particle barrier having a closed position which covers the slot and an open position that leaves the slot open; a lower fuel particle barrier positioned over the lower tie plate and below the fuel rods, wherein the lower portion of the fuel bundle assembly is grasped by the lower fuel particle barrier.

    摘要翻译: 一种核反应堆燃料束约束系统,包括:具有上连接板的燃料束; 封闭燃料束的通道; 用于在燃料束上方延伸的燃料束的手柄; 上燃料颗粒屏障,其位于所述上连接板上方和所述燃料棒上方,其中所述燃料颗粒屏障具有至少与所述上连接板的敞开区域共同扩张的透气板; 透气板中的狭槽通过该手柄,并且燃料颗粒屏障上的封闭装置具有封闭位置,该封闭位置覆盖狭槽和使槽开放的打开位置; 燃料棒组件的下部被下部燃料颗粒屏障抓住的位于燃料棒上方的较低燃料颗粒阻挡层。

    Multi-layer fuel channel and method of fabricating the same
    5.
    发明申请
    Multi-layer fuel channel and method of fabricating the same 审中-公开
    多层燃料通道及其制造方法

    公开(公告)号:US20090285350A1

    公开(公告)日:2009-11-19

    申请号:US12153415

    申请日:2008-05-19

    摘要: A fuel channel according to example embodiments for a nuclear reactor may have an elongated and hollow body with a multi-layer structure. The multi-layer structure may include a core layer and at least one cladding layer metallurgically-bonded to the core layer. The core layer and the at least one cladding layer may be alloys having different compositions. For instance, the core layer may be significantly more resistant to irradiation growth and/or irradiation creep than the at least one cladding layer, and the at least one cladding layer may have an increased resistance to hydrogen absorption and/or corrosion relative to the core layer. Accordingly, the distortion of the fuel channel may be reduced or prevented, thus reducing or preventing the interference with the movement of the control blade.

    摘要翻译: 根据用于核反应堆的示例性实施例的燃料通道可以具有具有多层结构的细长空心体。 多层结构可以包括芯层和冶金结合到芯层的至少一个包覆层。 芯层和至少一个包覆层可以是具有不同组成的合金。 例如,芯层可以比至少一个包覆层显着地更好地抵抗照射生长和/或照射蠕变,并且至少一个包层可以具有相对于芯的氢吸收和/或腐蚀的增加的阻力 层。 因此,可以减少或防止燃料通道的变形,从而减少或防止对控制叶片的运动的干扰。