公开(公告)号：US5570400A

公开(公告)日：1996-10-29

申请号：US512589

申请日：1995-08-08

申请人： David M. Minor ,  Ronald N. Roseveare

发明人： David M. Minor ,  Ronald N. Roseveare

IPC分类号： G21C17/06 ,  G21C17/07 ,  G21C17/00

CPC分类号： G21C17/07 ,  G21Y2002/204 ,  G21Y2004/30

摘要： An on-line sipping air delivery system that propels bubbles across the entire surface of the fuel assembly. A pump delivers liquid through an aspirator located near the bottom of the fuel handling mast. Liquid flow through a venturi in the aspirator causes a drop in pressure inside the aspirator and pulls air into the aspirator through an ambient air line that extends above the surface of the liquid. The air is mixed with liquid as it flows through the aspirator and the mixture is injected under the fuel assembly through nozzles positioned at the bottom of the assembly. Suction nozzles above the liquid level at the top of the fuel assembly are used in a conventional manner to capture and deliver the released air and gases to appropriate testing equipment.

摘要翻译： 一种在线喷水输送系统，其将燃料气体推动到燃料组件的整个表面上。 泵通过位于燃料处理桅杆底部附近的吸气器输送液体。 在抽吸器中通过文丘里管的液体流动导致抽吸器内的压力下降，并通过在液体表面上方延伸的环境空气管线将空气吸入吸气器。 空气在流过吸气器时与液体混合，混合物通过位于组件底部的喷嘴注入燃料组件的下面。 以常规方式使用在燃料组件顶部的液面以上的吸入喷嘴，以将释放的空气和气体捕获并输送到适当的测试设备。

公开(公告)号：US5361283A

公开(公告)日：1994-11-01

申请号：US214713

申请日：1994-03-15

申请人： Douglas J. Attix

发明人： Douglas J. Attix

IPC分类号： G21C3/33 ,  G21C3/334 ,  G21C3/30

CPC分类号： G21C3/334 ,  G21Y2002/302 ,  G21Y2002/40 ,  G21Y2004/301 ,  G21Y2004/50 ,  Y02E30/40 ,  Y10S285/921

摘要： An integral, reusable locking arrangement between the guide tube assembly and upper end fitting of a reconstitutable fuel assembly that eliminates all loose fastener components at the reactor site. A retainer sleeve is fabricated to cooperate with the upper end sleeve of the guide tube assembly. Slots adjacent to the upper end of the sleeve receive rigid tabs on the upper end sleeve to hold the retainer sleeve and upper end sleeve together. The retainer sleeve is formed from a cylindrical tube that has a plurality of flexible curved tabs spaced around the circumference of the tube substantially at the mid section of the tube. Optional lower tabs serve to center the guide tube assembly in the upper end fitting and provide a more rigid connection. The mid section tabs are received against the shoulders of slots provided along the walls of the hole in the upper end fitting and serve to retain the guide tube assembly and upper end fitting in the installed position. Removal of the upper end fitting is accomplished by rotation of the retainer sleeve to force the tabs inboard and then sliding the upper end fitting upward.

摘要翻译： 引导管组件和可重构燃料组件的上端配件之间的整体可重复使用的锁定装置，消除了反应器位置处的所有松动的紧固件部件。 制造保持套筒与导管组件的上端套管配合。 与套筒上端相邻的插槽接收上端套筒上的刚性突出部，以将保持套和上端套保持在一起。 保持套筒由圆柱形管形成，圆柱形管具有大致在管的中间部分围绕管的圆周间隔开的多个柔性弯曲翼片。 可选的下突片用于将导管组件居中在上端配件中并提供更刚性的连接。 中间部分突出部被容纳在上端配件中沿着孔的壁设置的槽的肩部上，并用于将导管组件和上端配件保持在安装位置。 通过保持套筒的旋转来实现上端配件的移除，以将突片拉入内部，然后向上滑动上端配件。

公开(公告)号：US5299245A

公开(公告)日：1994-03-29

申请号：US970760

申请日：1992-11-02

申请人： Michael E. Aldrich ,  David A. Farnsworth ,  Charles D. Morgan ,  Jeffrey S. Tucker

发明人： Michael E. Aldrich ,  David A. Farnsworth ,  Charles D. Morgan ,  Jeffrey S. Tucker

IPC分类号： G21C3/34 ,  G21C3/322 ,  G21C3/352

CPC分类号： G21C3/322 ,  G21C3/352 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/38

摘要： A spacer grid for a nuclear fuel assembly. A plurality of metal strips are interleaved on edge to define a plurality of individual cells. Each cell is sized to receive a single nuclear fuel rod. A series of projections, grid mixing vanes, extend from one edge of each metal strip and are alternately bent to extend on opposite sides of the metal strip. The alternating projections provide four grid mixing vanes that extend into each individual cell.

摘要翻译： 用于核燃料组件的间隔网格。 多个金属条在边缘上交错以限定多个单独的单元。 每个电池的尺寸可以接收单个核燃料棒。 一系列突起，栅格混合叶片从每个金属条的一个边缘延伸并且交替地弯曲以在金属条的相对侧上延伸。 交替的突起提供延伸到每个单独的单元格中的四个格栅混合叶片。

公开(公告)号：US5271049A

公开(公告)日：1993-12-14

申请号：US965322

申请日：1992-10-23

申请人： Douglas W. Bell ,  Jeffrey S. Whitt

发明人： Douglas W. Bell ,  Jeffrey S. Whitt

IPC分类号： G21C3/334 ,  G21C21/00

CPC分类号： G21C3/334 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/501 ,  Y02E30/40

摘要： A grid key for interior grid cells. A rectangular main body portion is bent near the middle at approximately a 90 degree angle. Two tabs that are flush with the main body portion extend outward in opposite directions from one end and along a portion of the length of the main body portion. The opposing side of the tabs is tapered at a 45 degree angle back toward the main body portion. The main body portion has a thickened section that coincides with the tabs. The thickened section is wedged between the soft stops of an individual interior grid cell to retract the stops and allow loading of a fuel rod.

摘要翻译： 内部网格单元的格子键。 矩形主体部分以大约90度的角度在中间附近弯曲。 与主体部分齐平的两个突片从主体部分的一端和长度的一部分向相反方向向外延伸。 突片的相对侧朝向主体部分以45度角渐缩。 主体部分具有与突片重合的增厚部分。 增厚部分楔入单个内部格栅单元的软止动件之间，以缩回止挡件并允许装载燃料棒。

公开(公告)号：US5180540A

公开(公告)日：1993-01-19

申请号：US674014

申请日：1991-03-25

申请人： Thomas J. Smentek

发明人： Thomas J. Smentek

IPC分类号： G21C19/375 ,  G21F5/012

CPC分类号： G21F5/012 ,  G21C19/375

摘要： A nuclear fuel rod consolidation structure. A storage canister has a grid structure positioned in its interior. The grid structure is provided with a plurality of hexagonally shaped individual cells in a triangular pitch array. This provides nearly a two to one consolidation ratio. The grid structure provides positive radial support to the fuel rods to maintain the triangular pitch array if the canister is not fully loaded or some of the fuel rods are removed. The positive guidance allows use of the existing rod pulling device for loading fuel rods into the structure.

公开(公告)号：US5061437A

公开(公告)日：1991-10-29

申请号：US645156

申请日：1991-01-24

申请人： Jeffrey S. Whitt

发明人： Jeffrey S. Whitt

IPC分类号： G21C3/334

CPC分类号： G21C3/334 ,  G21Y2002/302 ,  G21Y2004/501 ,  Y02E30/40

摘要： A grid key and method for keying exterior grid cells in a nuclear fuel assembly. The grid key has a main body portion having first and second ends and is bent at approximately a 45 degree angle near the first end. Two tabs extend outward from the first end at a right angle to the main body portion to define a T-shape. The T-shape end is inserted into the window of the exterior grid strip such that the top of the T-shape is parallel to the longitudinal axis of the grid assembly. The main body portion is then rotated 90 degrees to position the top of the T-shaped end to be perpendicular to the longitudinal axis of the grid assembly and behind the exterior grid strip. The main body portion is then pulled away from the exterior grid strip in a vertical rotating motion, causing the top of the T-shaped end to pull the exterior grid strip away from the center of the cell defined by the grid assembly.

公开(公告)号：US5438598A

公开(公告)日：1995-08-01

申请号：US213756

申请日：1994-03-15

申请人： Douglas J. Attix

发明人： Douglas J. Attix

IPC分类号： G21C3/32 ,  G21C1/04

CPC分类号： G21C3/3206 ,  G21Y2002/302 ,  G21Y2004/40 ,  Y02E30/40

摘要： A combined lower end fitting and debris filter for a nuclear fuel assembly is provided that does not require multiple parts, welding, brazing, mechanical fasteners, drilling or EDM operations to form the coolant flow holes. The lower end fitting and debris filter are cast as a single work piece that includes the coolant flow holes in the casting process. This is accomplished by casting the sections of the filtration surface having flow holes in a thickness that allows for the small coolant flow holes to be formed as part of the casting process.

摘要翻译： 提供了用于核燃料组件的组合的下端配件和碎屑过滤器，其不需要多个部件，焊接，钎焊，机械紧固件，钻孔或EDM操作以形成冷却剂流动孔。 下端配件和碎屑过滤器作为单个工件铸造，其包括铸造过程中的冷却剂流动孔。 这是通过将具有允许小型冷却剂流动孔的厚度的具有流动孔的过滤表面的部分浇铸成铸造工艺的一部分来实现的。

公开(公告)号：US5422492A

公开(公告)日：1995-06-06

申请号：US202315

申请日：1994-02-28

申请人： Barry S. Lecik ,  Darryl L. Gordon

发明人： Barry S. Lecik ,  Darryl L. Gordon

IPC分类号： G21C17/104 ,  G21F5/04

CPC分类号： G21C17/104 ,  G21Y2002/501

摘要： A device for calibrating a criticality detector for a nuclear fuel manufacturing plant having a radiation source comprises a radiation protective holder for containing the radiation source. The holder is aligned with the criticality detector along an axis; and a measuring rod having a plurality of calibrations is connected to the criticality detector and positioned near the holder parallel with the axis. A nylon guide is connected to the holder and movably connected to the measuring rod for moving the holder and the radiation source along the axis for detection purposes while providing a calibration measurement.

摘要翻译： 用于校准具有辐射源的核燃料制造厂的临界检测器的装置包括用于容纳辐射源的辐射保护支架。 支架沿着轴线与临界检测器对准; 并且具有多个校准的测量杆连接到临界检测器并且定位在与轴平行的保持器附近。 尼龙引导件连接到保持器并且可移动地连接到测量杆，用于沿着轴线移动保持器和辐射源以进行检测，同时提供校准测量。

公开(公告)号：US5416811A

公开(公告)日：1995-05-16

申请号：US192267

申请日：1994-02-07

申请人： Douglas J. Attix ,  Samuel V. Pickerel, Jr.

发明人： Douglas J. Attix ,  Samuel V. Pickerel, Jr.

IPC分类号： G21C3/33 ,  G21C3/32

CPC分类号： G21C3/33 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/40

摘要： An upper end fitting for a nuclear fuel assembly that eliminates the problem of free standing fuel assemblies leaning out of range of the lead in provided when installing the reactor upper internals structure. The outer dimensions of each upper end fitting in the fuel assembly are larger than their respective spacer grids and lower end fittings such that the nominal gap between upper end fittings is approximately 0.025 inch.

摘要翻译： 用于核燃料组件的上端配件，其消除了在安装反应堆上部内部结构时提供的倾斜超出引线范围的独立燃油组件的问题。 每个上端装配在燃料组件中的外部尺寸大于它们各自的间隔栅格和下端配件，使得上端配件之间的标称间隙大约为0.025英寸。

公开(公告)号：US5367548A

公开(公告)日：1994-11-22

申请号：US213321

申请日：1994-03-15

申请人： Douglas J. Attix

发明人： Douglas J. Attix

IPC分类号： G21C3/33 ,  G21C3/335 ,  G21C3/30

CPC分类号： G21C3/335 ,  G21Y2002/303 ,  G21Y2004/301 ,  Y02E30/40 ,  Y10S285/921

摘要： An integral reusable locking arrangement between the guide tube and upper end fitting of a reconstitutable fuel assembly that eliminates all loose fastener components at the reactor site. A retainer sleeve is fabricated as an addition to or part of the upper end sleeve of the guide tube assembly. The retainer sleeve is formed from a cylindrical tube that has a plurality of flexible tabs spaced around the circumference of the tube at the lower end and substantially at the mid section of the tube. The lower tabs serve to center the guide tube in a hole in the upper end fitting or top nozzle. The mid section tabs extend beyond the shoulder of a counterbore in the hole in the upper end fitting or top nozzle and serve to retain the guide tube and upper end fitting in the installed position. A sleeve or collet may be inserted into the counterbore to force the tabs inward and unlock the retainer and guide tube from the upper end fitting.

摘要翻译： 引导管和可重构燃料组件的上端配件之间的整体可重复使用的锁定装置，消除了反应器位置处的所有松散的紧固件部件。 制造保持套筒作为导管组件的上端套管的一部分或部分。 保持套筒由圆柱形管形成，圆柱形管具有在管的下端和基本上位于管的中段处围绕管的圆周间隔开的多个柔性翼片。 下部突片用于将引导管定位在上端配件或顶部喷嘴中的孔中。 中间部分突出部延伸超过上端配件或顶部喷嘴中的孔中的沉孔的肩部，并用于将引导管和上端接头保持在安装位置。 可以将套筒或夹头插入沉孔中以迫使翼片向内并将保持器和引导管从上端配件解锁。