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1. 发明授权

US4652426A Water tubes arranged in cross-like pattern in a fuel assembly 失效
标题翻译：在燃料组件中布置成十字形图案的水管
公开(公告)号：US4652426A
公开(公告)日：1987-03-24
申请号：US642844
申请日：1984-08-20
申请人： Raymond F. Boyle , Richard S. Miller , Carl A. Olson
发明人： Raymond F. Boyle , Richard S. Miller , Carl A. Olson
IPC分类号： G21C3/326 , G21C1/04
CPC分类号： G21C3/326 , Y02E30/38
摘要： An improved nuclear fuel assembly includes a plurality of elongated water tubes arranged in a cross-like pattern spaced among a plurality of fuel rods for providing individual, spaced-apart coolant-moderator water flow paths lengthwise through the assembly. Some of the water tubes also function as tie rods interconnecting upper and lower tie plates of the fuel assembly.
摘要翻译：改进的核燃料组件包括多个细长的水管，其布置成在多个燃料棒之间间隔开的十字形图案，用于在整个组件中纵向提供单独的间隔开的冷却剂 - 调节剂水流径。一些水管还用作连接燃料组件的上下连接板的拉杆。

2. 发明授权

US4793963A Fuel rod cluster interchange system and method for nuclear fuel assemblies 失效
标题翻译：燃料棒群交换系统和核燃料组件的方法
公开(公告)号：US4793963A
公开(公告)日：1988-12-27
申请号：US129326
申请日：1987-12-05
申请人： Edmund E. Demario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
发明人： Edmund E. Demario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
IPC分类号： G21C3/328 , G21C19/20
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2002/302 , G21Y2002/304 , G21Y2004/30 , Y02E30/38
摘要： The improved fuel assembly has a plurality of elongated corner posts extending longitudinally between and releasably and rigidly interconnecting top and bottom nozzles so as to form a rigid structural skeleton of the fuel assembly. Additionally, a plurality of transverse grids are supported at axially spaced locations along the corner posts and a plurality of fuel rods are supported by the grids. Certain groups of the fuel rods are spaced apart laterally from one another by a greater distance than the rest of the fuel rods so as to define a number of elongated channels extending between the top and bottom nozzles. A cluster assembly having a cluster plate with a plurality of elongated rods is adapted to be removably supported on the top nozzle with its rods extending through the channels. The rods can be a plurality of guide thimbles in the case of one cluster assembly, or a plurality of oversized fuel rods in the case of another cluster assembly. The provision of cluster assemblies allows a unique scheme for loading fuel in the reactor core. Cluster assemblies containing burnt fuel can be loaded into fuel assemblies containing fresh fuel and vice versa. Also, a guide fixture mounting guide rods and a pair of comb devices mounting locking bars are utilized to depress springs within the cells of the grids in order to load fuel rods into the grid cells without scratching their exterior surfaces.
摘要翻译：改进的燃料组件具有在顶部和底部喷嘴之间纵向延伸并且可释放地且刚性互连的多个细长角柱，以形成燃料组件的刚性结构骨架。此外，多个横向格栅沿着角柱轴向隔开的位置被支撑，并且多个燃料棒由网格支撑。燃料棒的某些组彼此横向间隔开比其余燃料棒更大的距离，以便限定在顶部和底部喷嘴之间延伸的多个细长通道。具有具有多个细长杆的簇板的簇组件适于可拆卸地支撑在顶部喷嘴上，其杆延伸穿过通道。在一个集束组件的情况下，杆可以是多个导向套管，或者在另一个集束组件的情况下可以是多个超大的燃料棒。提供集群组件允许将反应堆堆芯中的燃料装载到一个独特的方案。包含燃烧燃料的集群组件可以装载到包含新鲜燃料的燃料组件中，反之亦然。此外，引导夹具安装导杆和安装锁定杆的一对梳形装置用于压下格栅的单元内的弹簧，以便将燃料棒装载到网格中而不会刮擦其外表面。

3. 发明授权

US4716016A Universal fuel assembly construction for a nuclear reactor 失效
标题翻译：用于核反应堆的通用燃料组件结构
公开(公告)号：US4716016A
公开(公告)日：1987-12-29
申请号：US708190
申请日：1985-03-04
申请人： Edmund E. Demario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
发明人： Edmund E. Demario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
IPC分类号： G21C3/30 , G21C3/328 , G21C3/34 , G21C3/32
CPC分类号： G21C3/328 , G21Y2002/201 , G21Y2002/302 , G21Y2002/304 , G21Y2004/30 , Y02E30/38
摘要： The universal fuel assembly has a plurality of elongated corner posts extending longitudinally between and releasably and rigidly interconnecting top and bottom nozzles so as to form a rigid structural skeleton of the fuel assembly. Additionally, a plurality of transverse grids are supported at axially spaced locations along the corner posts and a plurality of fuel rods are supported by the grids. Certain groups of the fuel rods are spaced apart laterally from one another by a greater distance than the rest of the fuel rods so as to define a number of elongated channels extending between the top and bottom nozzles. A cluster assembly having a cluster plate with a plurality of elongated rods is adapted to be removably supported on the top nozzle with its rods extending through the channels. The rods can be a plurality of guide thimbles in the case of one cluster assembly, or a plurality of oversized fuel rods in the case of another cluster assembly. The provision of cluster assemblies allows a unique scheme for loading fuel in the reactor core. Cluster assemblies containing burnt fuel can be loaded into fuel assemblies containing fresh fuel and vice versa. Also, a guide fixture mounting guide rods and a pair of comb devices mounting locking bars are utilized to depress springs within the cells of the grids in order to load fuel rods into the grid cells without scratching their exterior surfaces.
摘要翻译：通用燃料组件具有多个细长的角柱，其纵向延伸且在顶部和底部喷嘴之间可释放地且刚性地互连，从而形成燃料组件的刚性结构骨架。此外，多个横向格栅沿着角柱轴向隔开的位置被支撑，并且多个燃料棒由网格支撑。燃料棒的某些组彼此横向间隔开比其余燃料棒更大的距离，以便限定在顶部和底部喷嘴之间延伸的多个细长通道。具有具有多个细长杆的簇板的簇组件适于可拆卸地支撑在顶部喷嘴上，其杆延伸穿过通道。在一个集束组件的情况下，杆可以是多个导向套管，或者在另一个集束组件的情况下可以是多个超大的燃料棒。提供集群组件允许将反应堆堆芯中的燃料装载到一个独特的方案。包含燃烧燃料的集群组件可以装载到包含新鲜燃料的燃料组件中，反之亦然。此外，引导夹具安装导杆和安装锁定杆的一对梳形装置用于压下格栅的单元内的弹簧，以便将燃料棒装载到网格中而不会刮擦其外表面。

4. 发明授权

US4651403A Apparatus and method for loading fuel rods into grids of a fuel assembly 失效
标题翻译：将燃料棒装载到燃料组件的栅格中的装置和方法
公开(公告)号：US4651403A
公开(公告)日：1987-03-24
申请号：US717263
申请日：1985-03-28
申请人： Edmund E. DeMario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
发明人： Edmund E. DeMario , Denis L. Burman , Carl A. Olson , Jeffrey R. Secker
IPC分类号： G21C21/00 , G21C3/334 , B23P11/02 , B23P19/00
CPC分类号： G21C3/334 , G21Y2002/302 , G21Y2002/303 , G21Y2004/40 , G21Y2004/501 , Y02E30/40 , Y10T29/4987 , Y10T29/531
摘要： The improved fuel assembly has a plurality of elongated corner posts extending longitudinally between and releasably and rigidly interconnecting top and bottom nozzles so as to form a rigid structural skeleton of the fuel assembly. Additionally, a plurality of transverse grids are supported at axially spaced locations along the corner posts and a plurality of fuel rods are supported by the grids. Certain groups of the fuel rods are spaced apart laterally from one another by a greater distance than the rest of the fuel rods so as to define a number of elongated channels extending between the top and bottom nozzles. A cluster assembly having a cluster plate with a plurality of elongated rods is adapted to be removably supported on the top nozzle with its rods extending through the channels. The rods can be a plurality of guide thimbles in the case of one cluster assembly, or a plurality of oversized fuel rods in the case of another cluster assembly. The provision of cluster assemblies allows a unique scheme for loading fuel in the reactor core. Cluster assemblies containing burnt fuel can be loaded into fuel assemblies containing fresh fuel and vice versa. Also, a guide fixture mounting guide rods and a pair of comb devices mounting locking bars are utilized to depress springs within the cells of the grids in order to load fuel rods into the grid cells without scratching their exterior surfaces.
摘要翻译：改进的燃料组件具有在顶部和底部喷嘴之间纵向延伸并且可释放地且刚性互连的多个细长角柱，以形成燃料组件的刚性结构骨架。此外，多个横向格栅沿着角柱轴向隔开的位置被支撑，并且多个燃料棒由网格支撑。燃料棒的某些组彼此横向间隔开比其余燃料棒更大的距离，以便限定在顶部和底部喷嘴之间延伸的多个细长通道。具有具有多个细长杆的簇板的簇组件适于可拆卸地支撑在顶部喷嘴上，其杆延伸穿过通道。在一个集束组件的情况下，杆可以是多个导向套管，或者在另一个集束组件的情况下可以是多个超大的燃料棒。提供集群组件允许将反应堆堆芯中的燃料装载到一个独特的方案。包含燃烧燃料的集群组件可以装载到包含新鲜燃料的燃料组件中，反之亦然。此外，引导夹具安装导杆和安装锁定杆的一对梳形装置用于压下格栅的单元内的弹簧，以便将燃料棒装载到网格中而不会刮擦其外表面。

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