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    METHOD AND APPARATUS TO SHIELD A NUCLEAR FUEL ASSEMBLY WITH REMOVABLE DEBRIS SHIELD IN UPPER TIE
    3.
    发明申请
    METHOD AND APPARATUS TO SHIELD A NUCLEAR FUEL ASSEMBLY WITH REMOVABLE DEBRIS SHIELD IN UPPER TIE 失效
    用于上盖板的可拆卸防护罩的核燃料组件的方法和装置

    公开(公告)号：US20090080590A1

    公开(公告)日：2009-03-26

    申请号：US12323739

    申请日：2008-11-26

    申请人： David Smith ,  Michael DeFilippis ,  Gerald A. Luciano ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    发明人： David Smith ,  Michael DeFilippis ,  Gerald A. Luciano ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    IPC分类号： G21C19/42

    CPC分类号： G21C3/3206 ,  G21C3/3315 ,  G21C3/334 ,  G21C3/335 ,  Y02E30/40

    摘要： A method to capture, retain and remove debris falling into a nuclear reactor fuel bundle assembly including a bundle of fuel rods mounted below an upper tie plate and housed in a hollow metal channel, the method includes: inserting a debris shield in the upper tie plate; maintaining the shield in the upper tie plate and above the fuel rods, and water rods, while the fuel bundle assembly is in an operating nuclear reactor core; capturing debris falling in the fuel assembly on the debris shield; after capturing the debris, removing the fuel bundle assembly with the inserted debris shield from the nuclear reactor core to a maintenance/fuel inspection pool and thereafter removing the debris shield from the upper tie plate, cleaning and then reinserting the cleaned debris shield back into the upper tie plate, and moving the fuel bundle assembly from the maintenance/fuel inspection pool back into the nuclear reactor core.

    摘要翻译： 一种捕获，保留和去除落入核反应堆燃料束组件中的碎屑的方法，包括一束燃料棒，该燃料棒安装在上连接板下方并且容纳在中空金属通道中，该方法包括：将碎屑屏蔽物插入上连接板 ; 在燃料束组件处于运行中的核反应堆堆芯中时，将护罩保持在上连接板和燃料棒上方以及水杆上; 捕获残留在碎片防护罩上的燃料组件中的碎屑; 在捕获碎屑之后，将插入的碎片防护罩从核反应堆堆芯移除到维护/燃料检查池，然后从上部连接板上移除碎片防护罩，然后清洁然后将清洁的碎片护罩重新插入到 并且将燃料束组件从维护/燃料检查池移回到核反应堆堆芯中。

    DEBRIS SHIELD FOR UPPER TIE PLATE IN A NUCLEAR FUEL BUNDLE AND METHOD FOR FILTERING DEBRIS
    4.
    发明申请
    DEBRIS SHIELD FOR UPPER TIE PLATE IN A NUCLEAR FUEL BUNDLE AND METHOD FOR FILTERING DEBRIS 审中-公开
    核燃料组件中的上层板的破碎屏蔽和过滤器的方法

    公开(公告)号：US20090060114A1

    公开(公告)日：2009-03-05

    申请号：US11848414

    申请日：2007-08-31

    申请人： Michael DeFilippis ,  Gerald A. Luciano ,  David Smith ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    发明人： Michael DeFilippis ,  Gerald A. Luciano ,  David Smith ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    IPC分类号： G21C19/42

    CPC分类号： G21C3/3206 ,  G21C3/33 ,  G21C3/344 ,  Y02E30/40

    摘要： A nuclear reactor fuel assembly including: an upper tie plate having apertures to receive and support fuel rods of a fuel bundle; the fuel bundle includes an array of the fuel rods mounted and housed in the walls of a channel, and a load bearing or non-load bearing debris shield may be mounted in the upper tie plate, wherein the debris shield is porous to prevent the passage of debris. The debris shield is mounted in the frame of the upper tie plate. The debris shield can be either a removable unit, or it can be attached as a permanent integrated structure within the upper tie plate. The upper tie plate frame is also porous, e.g., has small vertical openings to allow fluid to pass through the frame and block passage of debris. The openings in the frame increase the effective flow area of passages through the upper tie plate and thereby compensate or offset any flow restrictions due to the debris shield. Preventing debris falling into the fuel bundle is expected to assure the operational life of the fuel assembly by reducing the risk of fuel rod failure and premature discharge from the reactor core.

    摘要翻译： 一种核反应堆燃料组件，包括：上连接板，其具有用于接收和支撑燃料束的燃料棒的孔; 燃料束包括安装并容纳在通道的壁中的燃料棒的阵列，并且负载承载或非负载的碎屑屏蔽可以安装在上部连接板中，其中，碎屑屏蔽是多孔的，以防止通过 的碎片。 碎片屏蔽件安装在上连接板的框架中。 碎片屏蔽可以是可拆卸的单元，也可以作为永久的一体化结构连接在上连接板内。 上连接板框架也是多孔的，例如具有小的垂直开口，以允许流体通过框架并阻止碎片通过。 框架中的开口增加了通过上连接板的通道的有效流动面积，从而补偿或抵消了由于碎片屏蔽造成的任何流动限制。 通过减少燃料棒故障和从反应堆堆芯过早排放的危险，防止残留在燃料束中的碎屑预期将确保燃料组件的使用寿命。

    Method and apparatus to shield a nuclear fuel assembly with removable debris shield in upper tie
    5.
    发明授权
    Method and apparatus to shield a nuclear fuel assembly with removable debris shield in upper tie 失效
    用于在上连接板上屏蔽核燃料组件的可拆卸的碎片屏蔽的方法和装置

    公开(公告)号：US08396182B2

    公开(公告)日：2013-03-12

    申请号：US12323739

    申请日：2008-11-26

    申请人： David Smith ,  Michael DeFilippis ,  Gerald A. Luciano ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    发明人： David Smith ,  Michael DeFilippis ,  Gerald A. Luciano ,  Michael Kiernan ,  Carlton Clark ,  Andrew K. Langston

    IPC分类号： G21C19/00

    CPC分类号： G21C3/3206 ,  G21C3/3315 ,  G21C3/334 ,  G21C3/335 ,  Y02E30/40

    摘要： A method to capture, retain and remove debris falling into a nuclear reactor fuel bundle assembly including a bundle of fuel rods mounted below an upper tie plate and housed in a hollow metal channel, the method includes: inserting a debris shield in the upper tie plate; maintaining the shield in the upper tie plate and above the fuel rods, and water rods, while the fuel bundle assembly is in an operating nuclear reactor core; capturing debris falling in the fuel assembly on the debris shield; after capturing the debris, removing the fuel bundle assembly with the inserted debris shield from the nuclear reactor core to a maintenance/fuel inspection pool and thereafter removing the debris shield from the upper tie plate, cleaning and then reinserting the cleaned debris shield back into the upper tie plate, and moving the fuel bundle assembly from the maintenance/fuel inspection pool back into the nuclear reactor core.

    摘要翻译： 一种捕获，保留和去除落入核反应堆燃料束组件中的碎屑的方法，包括一束燃料棒，该燃料棒安装在上连接板下方并且容纳在中空金属通道中，该方法包括：将碎屑屏蔽物插入上连接板 ; 在燃料束组件处于运行中的核反应堆堆芯中时，将护罩保持在上连接板和燃料棒上方以及水杆上; 捕获残留在碎片防护罩上的燃料组件中的碎屑; 在捕获碎屑之后，将插入的碎片防护罩从核反应堆堆芯移除到维护/燃料检查池，然后从上部连接板上移除碎片防护罩，然后清洁然后将清洁的碎片护罩重新插入到 并且将燃料束组件从维护/燃料检查池移回到核反应堆堆芯中。