公开(公告)号：US4755351A

公开(公告)日：1988-07-05

申请号：US873061

申请日：1986-06-04

申请人： Frank J. Baloh ,  James A. Sparrow

发明人： Frank J. Baloh ,  James A. Sparrow

IPC分类号： G21C3/12 ,  G21C3/32 ,  G21C3/00

CPC分类号： G21C3/12 ,  G21C3/32 ,  Y02E30/40

摘要： The leaf springs mounted in the upper nozzle of a prior art fuel assembly, which are compressed by the upper core plate to restrain the upward movement of the fuel assembly under the pressure of upwardly-flowing coolant, as dispensed with. Instead the fuel assembly is permitted to rise in a controlled manner into engagement with the upper core-support plate. The lower nozzle is provided with snubbers which engage, and exert low pressure, as required by the specifications governing a reactor, on the lower core plates when the fuel assembly is raised into engagement with the upper core plate by the force of the flowing coolant. In addition springs are provided between the pins extending from the upper and lower core plates and the walls of the holes in the upper and lower nozzles to suppress vibration under the transverse forces impressed by the flowing coolant.

摘要翻译： 板簧安装在现有技术的燃料组件的上喷嘴中，其被上芯板压缩以在没有向上流动的冷却剂的压力下抑制燃料组件的向上运动。 相反，允许燃料组件以受控的方式上升以与上部芯部支撑板接合。 下部喷嘴设置有缓冲器，当燃料组件通过流动的冷却剂的力而升高成与上部芯板接合时，缓冲器在下部芯板上接合并施加低于控制反应器的规格的低压力。 此外，弹簧设置在从上下芯板延伸的销和上喷嘴和下喷嘴中的孔的壁之间以在由流动的冷却剂施加的横向力的作用下抑制振动。

公开(公告)号：US4728480A

公开(公告)日：1988-03-01

申请号：US701052

申请日：1985-02-12

申请人： Frank J. Baloh ,  James A. Sparrow

发明人： Frank J. Baloh ,  James A. Sparrow

IPC分类号： G21C1/08 ,  G21C7/117 ,  G21C7/27 ,  G21C7/26

CPC分类号： G21C7/27 ,  G21C7/117 ,  G21Y2002/40 ,  G21Y2004/302 ,  Y02E30/39

摘要： A fuel assembly in a nuclear reactor has a spectral shift apparatus including a plurality of displacer rods for controlling reactivity in the assembly and an apparatus for refurbishing the displacer rods for reuse. Each displacer rod contains a quantity of water equivalent to a small fraction of the rod volume. Also, the spectral shift apparatus includes a manifold with a central plenum and a rupturable disk connected to the manifold. The manifold is connected in flow communication with the displacer rods. The disk which seals the displacer rods as well as the manifold plenum is rupturable at a given pressure differential thereacross so as to allow entry of the moderator/coolant liquid into the manifold and rods. Also, a screen adjacent the disk restricts it to rupturing in one direction only. The spectral shift refurbishing apparatus includes a charging tool insertable within the manifold plenum and separate air and water conduits interconnecting the manifold and upper and lower portions of the respective displacer rods in flow communication so as to provide respective entrance paths for air under pressure from the charging tool to the upper rod portions and separate exit paths for liquid from the lower rod portions to the charging tool such that introduction of air under pressure along the entrance paths will force liquid from the rods along the exit paths until the level of the liquid within the rods lowers to the level of the conduits in their lower portions.

摘要翻译： 核反应堆中的燃料组件具有光谱移位装置，其包括用于控制组件中的反应性的多个置换棒和用于重新置换置换棒的装置。 每个置换棒含有相当于棒体积的一小部分的水量。 此外，光谱移位装置包括具有中央增压室的歧管和连接到歧管的可破裂的盘。 歧管与置换棒流体连通。 密封置换器棒以及歧管集气室的盘在给定的压力差下是可破裂的，以允许调节剂/冷却剂液体进入歧管和棒。 而且，与磁盘相邻的屏幕也限制其在一个方向上的破裂。 光谱变换翻新装置包括可插入歧管集气室内的充电工具和分开的空气和水管道，其将歧管和相应的置换棒的上部和下部互相连通，以便相互连通，以便为来自充电的压力下的空气提供相应的入口路径 上部杆部分的工具和用于液体从下杆部分到装载工具的单独出口路径，使得沿着入口路径的压力下的空气的引入将迫使来自杆的液体沿出口路径直到液体内的液面 棒在其下部降低到导管的水平。

公开(公告)号：US4803042A

公开(公告)日：1989-02-07

申请号：US124318

申请日：1987-11-23

申请人： Charles B. Gilmore ,  James L. Kisak ,  Jeffrey P. Oberst ,  John D. Wood ,  Frank J. Baloh

发明人： Charles B. Gilmore ,  James L. Kisak ,  Jeffrey P. Oberst ,  John D. Wood ,  Frank J. Baloh

IPC分类号： G21F5/005 ,  G21F5/008 ,  G21F5/012 ,  G21C19/00

CPC分类号： G21F5/005 ,  G21F5/012

摘要： A shipping container is provided for use in containing and supporting a nuclear core component assembly, such as a control or poison assembly. The shipping container includes a separate rigid cylindrical body and lid of plastic material, a plurality of elongated tubes of plastic material, and foam plastic rigid flat cylindrical spacer plates. The tubes are inserted into the body for receiving and stabilizing elongated rods of the core component assembly. The spacer plates are disposed stationarily within and transversely across the body and spaced apart from one another axially along the body. Each plate has a plurality of openings therethrough for receiving and disposing the tubes in transverse side-by-side spaced relationship with respect to one another in, and extending between a closed bottom and an open top of, the body. The plates thus laterally space and support the rods when received in the tubes. The lid is hollow for receiving therein a common mounting structure of the assembly to which the rods are attached when the lid at its open bottom is installed the open top of the body. Also, overcentering lock mechanisms are provided on the lid and the body and are actuatable for latching and unlatching the lid to and from the body. An annular sealing gasket is disposable between the lid and the body for providing an air-tight seal therebetween upon latching the lid to the body.

公开(公告)号：US4683103A

公开(公告)日：1987-07-28

申请号：US701051

申请日：1985-02-12

申请人： Randy G. Lott ,  Frank J. Baloh

发明人： Randy G. Lott ,  Frank J. Baloh

IPC分类号： G21C7/117 ,  G21C7/27 ,  G21C7/26

CPC分类号： G21C7/117 ,  G21C7/27 ,  G21Y2002/201 ,  G21Y2002/40 ,  G21Y2004/302 ,  G21Y2004/40 ,  Y02E30/39

摘要： A fuel assembly in a nuclear reactor has a spectral shift apparatus including a plurality of displacer rods for controlling reactivity in the assembly and an apparatus for refurbishing the displacer rods for reuse. Each displacer rod contains a quantity of water equivalent to a small fraction of the rod volume. Also, the spectral shift apparatus includes a manifold with a central plenum and a rupturable disk connected to the manifold. The manifold is connected in flow communication with the displacer rods. The disk which seals the displacer rods as well as the manifold plenum is rupturable at a given pressure differential thereacross so as to allow entry of the moderator/coolant liquid into the manifold and rods. Also, a screen adjacent the disk restricts it to rupturing in one direction only. The spectral shift refurbishing apparatus includes a charging tool insertable within the manifold plenum and separate air and water conduits interconnecting the manifold and upper and lower portions of the respective displacer rods in flow communication so as to provide respective entrance paths for air under pressure from the charging tool to the upper rod portions and separate exit paths for liquid from the lower rod portions to the charging tool such that introduction of air under pressure along the entrance paths will force liquid from the rods along the exit paths until the level of the liquid within the rods lowers to the level of the conduits in their lower portions.

摘要翻译： 核反应堆中的燃料组件具有光谱移位装置，其包括用于控制组件中的反应性的多个置换棒和用于重新置换置换棒的装置。 每个置换棒含有相当于棒体积的一小部分的水量。 此外，光谱移位装置包括具有中央增压室的歧管和连接到歧管的可破裂的盘。 歧管与置换棒流体连通。 密封置换器棒以及歧管集气室的盘在给定的压力差下是可破裂的，以允许调节剂/冷却剂液体进入歧管和棒。 而且，与磁盘相邻的屏幕也限制其在一个方向上的破裂。 光谱变换翻新装置包括可插入歧管集气室内的充电工具和分开的空气和水管道，其将歧管和相应的置换棒的上部和下部互相连通，以便相互连通，以便为来自充电的压力下的空气提供相应的入口路径 上部杆部分的工具和用于液体从下杆部分到装载工具的单独出口路径，使得沿着入口路径的压力下的空气的引入将迫使来自杆的液体沿出口路径直到液体内的液面 棒在其下部降低到导管的水平。