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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：US5646973A
公开(公告)日：1997-07-08
申请号：US542254
申请日：1995-10-12
CPC分类号： G21C3/3315 , G21C3/33 , G21Y2002/301 , G21Y2004/305 , Y02E30/40
摘要： A fuel bundle assembly for a nuclear reactor includes a lower tie plate; a transition piece underlying the lower tie plate; a plurality of fuel rods and at least one water rod seated on the lower tie plate and extending in substantially parallel relationship toward an upper end of the fuel bundle assembly, wherein a fuel bundle assembly lifting load is carried by load bearing members including certain of the fuel rods or by the at least one water rod; a plurality of spacers axially spaced along the at least one water rod and including means for laterally supporting each of the fuel rods; and a handle bar assembly at the upper end of the fuel bundle assembly connected to the load bearing members such that the plurality of non-load bearing fuel rods are supported only by the lower tie plate and the plurality of spacers.
摘要翻译： 用于核反应堆的燃料束组件包括下连接板; 下连接板下方的过渡件; 多个燃料棒和至少一个水杆，所述至少一个水杆位于所述下连接板上，并且以基本上平行的关系延伸到所述燃料束组件的上端，其中燃料束组件提升负载由承载构件承载，所述承载构件包括： 燃料棒或至少一个水棒; 沿着所述至少一个水杆轴向间隔开的多个间隔件，并且包括横向支撑每个所述燃料棒的装置; 以及在所述燃料束组件的上端处连接到所述承载构件的手柄杆组件，使得所述多个非承载式燃料棒仅由所述下连接板和所述多个间隔件支撑。
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公开(公告)号：US5627866A
公开(公告)日：1997-05-06
申请号：US542382
申请日：1995-10-12
CPC分类号： G21C3/324 , G21C3/14 , G21C3/334 , G21Y2002/302 , G21Y2004/301 , Y02E30/40
摘要： A fuel assembly for a nuclear reactor vessel includes a plurality of fuel rods, at least one coolant rod, a lower tie plate supporting the fuel rods and coolant rod, and a channel surrounding the fuel rods, coolant rod and tie plate. The lower tie plate is supported by the channel such that the channel carries a load of the fuel assembly. In one aspect of the invention, an upper tie plate includes two spring loaded latch pins engageable with corresponding apertures in the channel. A transition member supports the lower tie plate and is rigidly secured to the channel. Thus, when lifting the fuel assembly from the reactor, the channel bears the load of the fuel assembly. End gussets or clips are welded to the channel and inserted into the transition member, which serve as a secondary support for the transition member in the event that its primary connection to the channel fails. A channel guide member is secured to the, upper tie plate and includes two ears that are received in ear apertures in the channel. The channel guide and ears thus provide a redundant attachment between the tie plate and the channel in the event that the spring loaded latch pins fail. If it is desired to remove the fuel bundle from the channel, the upper tie plate is released from the assembly by detaching the guide member and releasing the spring loaded latch pins. The bundle can then be removed from the channel by attaching a grapple head to the coolant rod ends, which are specially shaped to facilitate an attachment tool.
摘要翻译： 用于核反应堆容器的燃料组件包括多个燃料棒，至少一个冷却剂棒，支撑燃料棒和冷却剂棒的下部连接板以及围绕燃料棒，冷却剂棒和连接板的通道。 下连接板由通道支撑，使得通道承载燃料组件的负载。 在本发明的一个方面，上连接板包括可与通道中的相应孔接合的两个弹簧加载的闩锁销。 过渡构件支撑下连接板并且刚性地固定到通道。 因此，当将燃料组件从反应器提升时，通道承受燃料组件的负载。 端部角撑板或夹子焊接到通道并插入到过渡构件中，在过渡构件的主要连接失败的情况下，过渡构件用作过渡构件的辅助支撑。 通道引导构件固定到上连接板，并且包括容纳在通道中的耳孔中的两个耳朵。 如果弹簧加载的闩锁销故障，则通道引导件和耳朵因此提供了连接板和通道之间的冗余连接。 如果希望从通道中去除燃料束，则通过分离引导构件并释放弹簧加载的闩锁销，上部联接板从组件中释放。 然后可以通过将抓斗头附接到冷却剂杆端部而将束从通道移除，冷却剂杆端部被特别成形以便于附接工具。
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公开(公告)号：US5610961A
公开(公告)日：1997-03-11
申请号：US567152
申请日：1995-12-05
CPC分类号： G21C3/14 , G21C3/324 , G21C3/334 , G21Y2002/302 , G21Y2004/301 , Y02E30/40
摘要： A fuel assembly for a nuclear reactor vessel includes a plurality of fuel rods, at least one coolant rod, a lower tie plate supporting the fuel rods and coolant rod, and a channel surrounding the fuel rods, coolant rod and tie plate. The lower tie plate is supported by the channel such that the channel carries a load of the fuel assembly. In one aspect of the invention, a conventional upper tie plate is removed and a handle assembly is provided that includes two spring loaded latch pins engageable with corresponding apertures in the channel. A transition member supports the lower tie plate and is rigidly secured to the channel. Thus, when lifting the fuel assembly from the reactor, the channel bears the load of the fuel assembly. If it is desired to remove the fuel bundle from the channel, the handle assembly is released from the assembly by releasing the latch pins. The bundle can then be removed from the channel by attaching a grapple head to the coolant rod ends, which are specially shaped to facilitate an attachment tool.
摘要翻译： 用于核反应堆容器的燃料组件包括多个燃料棒，至少一个冷却剂棒，支撑燃料棒和冷却剂棒的下部连接板以及围绕燃料棒，冷却剂棒和连接板的通道。 下连接板由通道支撑，使得通道承载燃料组件的负载。 在本发明的一个方面，移除了传统的上连接板，并且提供了一个手柄组件，其包括可与通道中的相应孔接合的两个弹簧加载的闩锁销。 过渡构件支撑下连接板并且刚性地固定到通道。 因此，当将燃料组件从反应器提升时，通道承受燃料组件的负载。 如果需要从通道中移除燃料束，则通过释放闩锁销将手柄组件从组件中释放。 然后可以通过将抓斗头附接到冷却剂杆端部而将束从通道移除，冷却剂杆端部被特别成形以便于附接工具。
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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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7.发明授权Method and apparatus for attaching a lifting bar to a load bearing water rod in a nuclear fuel assembly 失效用于将提升杆附接到核燃料组件中的承载水杆的方法和装置
公开(公告)号：US5671261A
公开(公告)日：1997-09-23
申请号：US616477
申请日：1996-03-19
CPC分类号： G21C3/334 , G21Y2002/302 , G21Y2004/301 , Y02E30/40
摘要： A lifting assembly is configured to facilitate attaching of the lifting bar to a load bearing water rod in a nuclear fuel assembly. A connecting member is rigidly secured to the water rod and is provided with one of a male engaging portion and a female receiving portion. A lifting member including the lifting bar is engageable with the connecting member and includes the other of the male engaging portion and the female receiving portion. The male engaging portion and the female receiving portion are correspondingly shaped, and after insertion of the connecting member into or about the lifting member, the connecting member and lifting bar can be rotated relative to each other to prevent disassembly of the lifting assembly. A spring is disposed between the lifting bar and the water rod and urges the male engaging portion toward a locked position. The lifting assembly facilitates the attaching and detaching of the lifting bar to a load bearing water rod.
摘要翻译： 提升组件被构造成便于提升杆连接到核燃料组件中的承载水杆。 连接构件刚性地固定到水杆上，并且设置有阳接合部分和阴接收部分中的一个。 包括提升杆的提升构件可与连接构件接合并且包括阳接合部分和阴接收部分中的另一个。 阳接合部分和阴接收部分相应地成形，并且在将连接构件插入提升构件中或之后，连接构件和提升杆可以相对于彼此旋转以防止提升组件的拆卸。 弹簧设置在提升杆和水杆之间，并且将阳接合部分推向锁定位置。 提升组件有助于将提升杆附接和分离到承载水杆。
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