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公开(公告)号：US5740218A
公开(公告)日：1998-04-14
申请号：US621879
申请日：1996-03-26
申请人： Christian D. Frederickson , Robert B. Elkins , Edward A. Croteau , Harold B. King , David G. Smith
发明人： Christian D. Frederickson , Robert B. Elkins , Edward A. Croteau , Harold B. King , David G. Smith
摘要： The spacer for a nuclear fuel bundle includes unit cells having upper and lower, generally octagonally shaped walls connected one to the other by spring leg portions along sides thereof 90.degree. apart. The walls also carry stops in opposition to the sides of the walls to which the spring leg portions are connected. By orienting the cells in the spacer such that the majority of the cells have their stops lying toward one side of the spacer, the fuel bundle can be disposed in a horizontal position on the one side of the spacers. In that manner, the dead load of the fuel rods and spacers is borne by the stops along the underside of each spacer without substantially loading the springs of the spacer cells.
摘要翻译： 用于核燃料束的间隔件包括具有上部和下部，通常为八边形形状的壁的单元，所述壁通过沿其90度的侧面的弹簧腿部彼此相连。 墙壁还携带与弹簧腿部连接的壁的侧面相对的停止点。 通过使间隔物中的电池定向使得大部分电池具有位于间隔件一侧的止动件，燃料束可以设置在间隔件一侧的水平位置。 以这种方式，燃料棒和间隔件的静载荷由沿着每个间隔件的下侧的止动件承载，而基本上不加载间隔电池的弹簧。
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公开(公告)号：US5727039A
公开(公告)日：1998-03-10
申请号：US616509
申请日：1996-03-19
申请人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
发明人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
CPC分类号： G21C3/332 , G21Y2002/302 , G21Y2002/304 , G21Y2004/301 , Y02E30/40
摘要： In a nuclear reactor fuel bundle assembly having a plurality of fuel rods and a non-round water rod extending between upper and lower tie plates, and having at least one fuel rod spacer located along the non-round water rod, an improvement which includes cooperating components on the fuel rod spacer and on the water rod for permitting movement of the spacer along the water rod to a desired axial location and for thereafter preventing further axial movement of the spacer in at least one of two opposite axial directions, the cooperating components including at least one spring on one of the spacer and the water rod.
摘要翻译： 在具有多个燃料棒和在上下连接板之间延伸的非圆形水杆的核反应堆燃料束组件中，并且具有沿着非圆形水棒定位的至少一个燃料棒间隔件，其包括配合 燃料棒间隔件和水杆上的部件，用于允许间隔件沿水杆移动到期望的轴向位置，并且此后防止间隔件在两个相对的轴向方向中的至少一个中的进一步的轴向运动，所述协作部件包括 在间隔件和水杆之一上的至少一个弹簧。
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公开(公告)号：US5757874A
公开(公告)日：1998-05-26
申请号：US678046
申请日：1996-07-10
申请人： Edward A. Croteau , Robert B. Elkins , Thomas G. Evans , Harold B. King , David G. Smith , Russell P. Higgins , Gerald M. Latter
发明人： Edward A. Croteau , Robert B. Elkins , Thomas G. Evans , Harold B. King , David G. Smith , Russell P. Higgins , Gerald M. Latter
CPC分类号： G21C3/3563 , G21Y2002/302 , G21Y2004/30 , Y02E30/40
摘要： The spacer comprises a plurality of strips interleaved with one another to form an eggcrate-type pattern defining essentially rectilinear cells for each fuel rod. Each strip includes a central body portion with cantilevered loop spring-like projections extending to opposite sides, with spring contact portions projecting inwardly. Stops are provided along each of the central body regions of the strips intermediate the loop springs that project to the opposite side of the strip. Adjoining walls have loop spring portions for biasing the rod into engagement with opposing stops whereby each fuel rod is supported at six contact points, i.e., four spring contact points and two hard stop contacts opposite the paired spring contacts.
摘要翻译： 间隔物包括彼此交错的多个条，以形成为每个燃料棒基本上限定直线细胞的蛋类型图案。 每个条带包括中心主体部分，其具有延伸到相对侧的悬臂弹簧状突出部，弹簧接触部分向内突出。 沿着条带的每个中心体区域提供止动件，该条带在环形弹簧之间延伸，该弹簧突出到条带的相对侧。 相邻的墙壁具有环形弹簧部分，用于将杆偏压成与相对的止挡接合，由此每个燃料棒被支撑在六个接触点处，即四个弹簧接触点和与成对的弹簧接触件相对的两个硬止动触头。
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公开(公告)号：US06226343B1
公开(公告)日：2001-05-01
申请号：US08839193
申请日：1997-04-23
IPC分类号： G21C332
摘要： A water rod for a fuel assembly of a boiling water nuclear reactor has a first end and a second end, wherein at least one of the first and second ends is directly attachable to a tie plate of the fuel assembly without an end plug. The structure of the present invention simplifies the manufacturing process and reduces the cost of the fuel assembly in the boiling water nuclear reactor. The water rod according to the invention has one or both of its ends configured to be directly attachable to the tie plate of the fuel assembly.
摘要翻译： 用于沸水核反应堆的燃料组件的水杆具有第一端和第二端，其中第一端和第二端中的至少一个直接可附接到燃料组件的连接板而没有端塞。 本发明的结构简化了制造过程并且降低了沸水核反应堆中的燃料组件的成本。 根据本发明的水杆具有一个或两个端部构造成可直接附接到燃料组件的连接板。
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5.发明授权Lower tie plate strainers including double corrugated strainers for boiling water reactors 失效下层连接板过滤器，包括用于沸水反应堆的双波纹过滤器
公开(公告)号：US5483564A
公开(公告)日：1996-01-09
申请号：US196738
申请日：1994-02-15
申请人： Bruce Matzner , Eric B. Johansson , Richard A. Wolters, Jr. , Thomas G. Dunlap , Robert B. Elkins , Harold B. King , Paul W. Sick , Kevin L. Ledford
发明人： Bruce Matzner , Eric B. Johansson , Richard A. Wolters, Jr. , Thomas G. Dunlap , Robert B. Elkins , Harold B. King , Paul W. Sick , Kevin L. Ledford
CPC分类号： G21C3/3206 , G21C1/086 , G21Y2002/104 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , G21Y2004/303 , Y02E30/40
摘要： In a boiling water reactor fuel bundle, a three dimensional debris catching grid construction is placed within the flow volume defined by the lower tie plate assembly between the inlet nozzle and upper fuel rod supporting grid. A perforated plate is utilized having round holes as small consistent with the prevention of inadvertent closure due crudding and a hole pitch consistent with mechanical integrity requirements. The perforated plate is placed in a three dimensional construction such as a dome, cylinder, pyramid, inverted pyramid or corrugated construction spanning the flow volume of the lower tie plate assembly. As a consequence of this three dimensional grid construction, the total flow through area of the perforations in the metal plate does not introduce appreciable pressure drop in the lower tie plate assembly between the inlet nozzle and the rod supporting grid. Fluid movement at the debris restraining holes of the grid construction has a low flow velocity and a change in flow direction before passing through the holes to discourage debris from finding its way through the grid holes. Finally, it is possible to incorporate debris traps within the flow volume of the lower tie plate assembly that can cause trapping and subsequent removal of trapped debris upon fuel bundle replacement. A double corrugated plate having large holes in the lower plate and smaller holes in the upper plate is utilized to trap debris.
摘要翻译： 在沸水反应堆燃料束中，三维碎屑捕获栅格结构放置在由入口喷嘴和上燃料棒支撑栅之间的下连接板组件限定的流动体积内。 使用多孔板，其圆形孔小，防止由于粗糙度而导致的无意闭合，以及与机械完整性要求一致的孔间距。 多孔板被放置在三维结构中，例如圆顶，圆柱体，金字塔，倒金字塔或波纹结构，跨越下拉板组件的流动体积。 作为这种三维格栅结构的结果，金属板中的穿孔面积的总流量不会在入口喷嘴和支撑杆之间的下连接板组件中引入明显的压降。 格栅结构的碎屑限制孔处的流体运动在通过孔之前具有低流速和流动方向的变化，以阻止碎屑通过栅格孔。 最后，可以将碎屑收集器结合在下连接板组件的流动体积内，这可以导致在燃料束更换时捕获和随后的捕获的碎屑的去除。 在下板中具有大孔的双层波纹板和上板中的较小孔用于捕集碎屑。
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公开(公告)号：US5859888A
公开(公告)日：1999-01-12
申请号：US852298
申请日：1997-05-07
申请人： Robert B. Elkins , Harold B. King
发明人： Robert B. Elkins , Harold B. King
摘要： In a fuel bundle for a boiling water nuclear reactor comprising a plurality of fuel rods secured within an array and extending between upper and lower tie plates, and including at least one additional fuel rod extending from the lower tie plate but terminating short of the upper tie plate, an improvement wherein a removable extension rod secured to the at least one additional fuel rod and extending substantially to the upper tie plate. The removable extension rod is in the form of a hollow tube having a plurality of openings therein and an internal flow path over an axial portion of the hollow tube, the flow path serving to cause coolant in the hollow tube to be deposited on adjacent fuel rods.
摘要翻译： 在用于沸水核反应堆的燃料束中，包括固定在阵列内并在上下连接板之间延伸的多个燃料棒，并且包括至少一个另外的燃料棒，该燃料棒从下连接板延伸，但是终止于上部连接 板的改进，其中可移除的延伸杆固定到至少一个附加燃料棒并且基本上延伸到上连接板。 可移除的延伸杆是中空管的形式，其中具有多个开口，以及在中空管的轴向部分上方的内部流动路径，用于使中空管中的冷却剂沉积在相邻燃料棒上的流动路径 。
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公开(公告)号：US5384814A
公开(公告)日：1995-01-24
申请号：US44687
申请日：1993-04-12
申请人： Bruce Matzner , Eric B. Johansson , Richard A. Wolters, Jr. , Thomas G. Dunlap , Robert B. Elkins , Harold B. King , Paul W. Sick
发明人： Bruce Matzner , Eric B. Johansson , Richard A. Wolters, Jr. , Thomas G. Dunlap , Robert B. Elkins , Harold B. King , Paul W. Sick
CPC分类号： G21C3/3206 , G21C1/086 , G21Y2002/104 , G21Y2002/201 , G21Y2004/30 , G21Y2004/302 , G21Y2004/303 , Y02E30/40
摘要： In a boiling water reactor fuel bundle, a three dimensional debris catching grid construction is placed within the flow volume defined by the lower tie plate assembly between the inlet nozzle and upper fuel rod supporting grid. A perforated plate is utilized having round holes as small consistent with the prevention of inadvertent closure due crudding and a hole pitch consistent with mechanical integrity requirements. The perforated plate is placed in a three dimensional construction such as a dome, cylinder, pyramid, inverted pyramid or corrugated construction spanning the flow volume of the lower tie plate assembly. As a consequence of this three dimensional grid construction, the total flow through area of the perforations in the metal plate does not introduce appreciable pressure drop in the lower tie plate assembly between the inlet nozzle and the rod supporting grid. Fluid movement at the debris restraining holes of the grid construction has a low flow velocity and a change in flow direction before passing through the holes to discourage debris from finding its way through the grid holes. Finally, it is possible to incorporate debris traps within the flow volume of the lower tie plate assembly that can cause trapping and subsequent removal of trapped debris upon fuel bundle replacement.
摘要翻译： 在沸水反应堆燃料束中，三维碎屑捕获栅格结构放置在由入口喷嘴和上燃料棒支撑栅之间的下连接板组件限定的流动体积内。 使用多孔板，其圆形孔小，防止由于粗糙度而导致的无意闭合，以及与机械完整性要求一致的孔间距。 多孔板被放置在三维结构中，例如圆顶，圆柱体，金字塔，倒金字塔或波纹结构，跨越下拉板组件的流动体积。 作为这种三维格栅结构的结果，金属板中的穿孔面积的总流量不会在入口喷嘴和支撑杆之间的下连接板组件中引入明显的压降。 格栅结构的碎屑限制孔处的流体运动在通过孔之前具有低流速和流动方向的变化，以阻止碎屑通过栅格孔。 最后，可以将碎屑收集器结合在下连接板组件的流动体积内，这可以导致在燃料束更换时捕获和随后的捕获的碎屑的去除。
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公开(公告)号：US5875224A
公开(公告)日：1999-02-23
申请号：US921600
申请日：1997-09-02
摘要： A swirler is releasably attached to a spacer and lies in the opening through the spacer lying above a part-length fuel rod in a nuclear fuel bundle. Adjacent ferrules have upstanding tabs with loops forming part of connecting elements for releasably securing the swirler to the spacer. The spacer is mounted on a mounting ring having radially outwardly directed elements terminating in barbed ends for insertion through the loops in response to rotation of the swirler mounting ring relative to the tabs. The barbed ends can be squeezed together to release the swirler from its attachment with the spacer.
摘要翻译： 旋流器可释放地附接到间隔件并且位于通过位于核燃料束中的部分长度燃料棒上方的间隔件的开口中。 相邻的套管具有直立的突出部，其环形成连接元件的一部分，用于将旋流器可释放地固定到间隔件。 间隔件安装在具有径向向外指向的元件的安装环上，该元件终止于有倒钩的端部，用于响应于旋流器安装环相对于突出部的旋转而插入环中。 有倒钩的端部可以挤压在一起，以使旋流器与间隔件的连接松开。
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9.发明授权
公开(公告)号：US5825837A
公开(公告)日：1998-10-20
申请号：US613663
申请日：1996-03-11
IPC分类号： G21C19/105
CPC分类号： G21C19/105 , G21Y2002/202 , G21Y2002/303 , G21Y2002/401 , G21Y2002/402 , G21Y2004/501 , Y10S294/906
摘要： An extraction tool for removing a partial length fuel rod from a fuel bundle assembly, wherein the partial length fuel rod has an upper end plug, the tool comprising an extension rod having a pair of gripper jaws mounted at one end thereof, the gripper jaws shaped and sized to engage the upper end plug; and a locking tube slidably received over the extension rod and engageable with the gripper jaws to lock the gripper jaws to the upper end plug.
摘要翻译： 一种用于从燃料束组件去除部分长度的燃料棒的提取工具，其中所述部分长度燃料棒具有上端塞，所述工具包括延伸杆，所述延伸杆在其一端安装有一对夹爪，所述夹爪形成 并且尺寸适于接合上端塞; 以及锁定管，其可滑动地容纳在所述延伸杆上并与所述夹爪夹合以将所述夹爪锁定到所述上端塞。
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公开(公告)号：US5546437A
公开(公告)日：1996-08-13
申请号：US371389
申请日：1995-01-11
申请人： Bruce Matzner , Harold B. King , David G. Smith
发明人： Bruce Matzner , Harold B. King , David G. Smith
CPC分类号： G21C3/352 , G21Y2002/302 , G21Y2004/305 , Y02E30/40
摘要： A spacer for retaining nuclear fuel rods in laterally spaced relation to one another includes first and second sets of spacer strips extending in mutually perpendicular diagonal directions relative to a generally rectilinear peripheral spacer band. The strips have linearly extending sections with adjacent sections angularly related to one another and meeting at apices. The sections of each strip alternately intersect a diagonal line across the spacer with the apices alternately located on opposite sides of the diagonal line. Alternate apices have springs projecting to one side of the strip for engaging fuel rods and apices between the alternate apices have stops projecting on opposite sides of the strip for engaging the fuel rods. Slots are provided in the strips enabling intermeshing of the strips with one another to define discrete cells peripherally encompassing and retaining fuel rods within the spacer. In another form, the spacer includes pairs of strips having alternating reversely curved sections with alternate springs and stops and assembled to form rows of cells. The strips are intermeshed in egg-crate fashion and welded at their junctures.
摘要翻译： 用于将核燃料棒保持为彼此横向间隔开的间隔件包括相对于大致直线的外围间隔带在相互垂直的对角线方向上延伸的第一组和第二组间隔条。 条带具有线性延伸部分，相邻部分彼此成角度相关并且在顶点处会合。 每个条带的部分交替地与穿过间隔物的对角线相交，顶点交替地位于对角线的相对侧上。 替代顶点具有突出到条的一侧的弹簧，用于接合燃料棒，并且在替代顶点之间的顶点具有在条的相对侧上突出的止挡件，用于接合燃料棒。 狭槽设置在带状物之间，使得条带彼此相互啮合以限定在隔离物周围包围和保持燃料棒的分立的细胞。 在另一种形式中，间隔物包括成对的条带，具有交替的反向弯曲部分，具有交替弹簧并停止并组装以形成行细胞。 条带以蛋包装方式相互啮合，并在其交点处焊接。
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