公开(公告)号：US5000906A

公开(公告)日：1991-03-19

申请号：US476339

申请日：1990-02-07

申请人： Frederick J. Ellingson ,  Anoop Kapoor ,  Arthur W. Kramer ,  Donald G. Sherwood

发明人： Frederick J. Ellingson ,  Anoop Kapoor ,  Arthur W. Kramer ,  Donald G. Sherwood

IPC分类号： G21C19/34

CPC分类号： G21C19/34

摘要： A system and a method for removing and consolidating the spent fuel rods of a fuel assembly is disclosed herein. The system comprises a pushing assembly having a push rod for pushing a selected fuel rod out of a fuel assembly, a fuel assembly positioner including an elevator for conveniently positioning a fuel assembly within the spent fuel pool of a nuclear facility, a rod catching grid for preventing the pushed-out fuel rods from falling to the bottom of the pool and a transition cannister for funneling the rods into a consolidated arrangement within a storage cannister. In operation, the push rod is positioned over and engaged against the upper end of a fuel rod to be removed from the assembly. Thus engaged, the push rod is inserted through the cells in the grids of the fuel assembly that surround the selected fuel rod, thereby pushing it out of the fuel assembly. Thus the grid cells are used as an alignment means for the push rod during the rod-pushing operation.

摘要翻译： 本文公开了一种用于去除和固结燃料组件的乏燃料棒的系统和方法。 该系统包括具有用于将选定燃料棒推出燃料组件的推杆的推动组件，包括用于将燃料组件方便地定位在核设施的乏燃料池内的电梯的燃料组件定位器，用于 防止被推出的燃料棒落到池底部;以及过渡罐，用于将棒料斗放入储存罐内的固结装置中。 在操作中，推杆定位在燃料棒的上端并与其接合以从组件移除。 因此，推杆通过围绕选定燃料棒的燃料组件的格栅中的电池插入，从而将其推出燃料组件。 因此，网格单元在推杆操作期间用作推杆的对准装置。

公开(公告)号：US4756067A

公开(公告)日：1988-07-12

申请号：US891016

申请日：1986-07-31

申请人： David A. Howell ,  Arthur W. Kramer ,  Joseph J. Hahn

发明人： David A. Howell ,  Arthur W. Kramer ,  Joseph J. Hahn

IPC分类号： G21C5/02 ,  G21C7/08 ,  G21C19/33 ,  G21C19/00

CPC分类号： G21C7/08 ,  G21C5/02 ,  G21Y2002/302 ,  G21Y2004/40 ,  G21Y2004/501 ,  G21Y2004/502 ,  Y02E30/39 ,  Y10T29/4973 ,  Y10T29/49821 ,  Y10T29/5108 ,  Y10T29/531

摘要： A replacement station includes an old split-pin-assembly (OSPA) removal stand and a new split-pin-assembly (NSPA) installation stand. The removal stand includes a saw and a drill. With the guide tube to which the OSPA is secured in the removal stand, the saw severs each OSPA below the flange which engages the base of the lower counterbore in the lower guide tube (LGT) separating the OSPA into a pin fragment and a second fragment including the flange and the remainder of the split-pin with the nut threaded into it. The second fragment remains secured to the LGT after the sawing operation. The guide tube is rotated so that the drill is coaxial with the shank of the pin of the second fragment. The second fragment is separated into a third fragment including the flange and a fourth fragment including the remainder of the pin and the nut both removable from the LGT. The installation stand has NSPA blades in which the new split pins are mounted. The LGT sans the OSPA's is positioned on the installation stand. The new nuts are mounted and torqued into the split pins with a long-handled runner and a torque tool permitting a measured torque to be applied to the new nut. Then the cups on the nuts are crimped by a long-handled crimping assembly which has fixed crimping jaws that produce the crimping by moving parallel to the wall of the cup.

摘要翻译： 更换站包括一个旧的拆卸销组件（OSPA）拆卸支架和一个新的分针销组件（NSPA）安装支架。 拆卸台包括锯和钻。 使用OSPA固定在拆卸支架上的导向管，锯将每个OSPA切割到法兰下方，该凸缘接合下部导管（LGT）中的下沉孔的底部，将OSPA分成销片段和第二片段 包括法兰和分接销的其余部分，螺母拧入其中。 第二个片段在锯切操作后仍然固定在LGT上。 引导管旋转，使得钻头与第二片段的销的柄同轴。 第二片段被分成包括凸缘的第三片段和包括销的剩余部分和螺母的第四片段，两者都可以从LGT移除。 安装支架具有NSPA刀片，其中安装了新的分离销。 LGT无人机OSPA位于安装支架上。 新的螺母通过一个长柄转轮和扭矩工具安装和扭转到分开的销中，允许测量的扭矩施加到新的螺母上。 然后，螺母上的杯子被长柄压接组件卷曲，该组合件具有固定的压接爪，其通过平行于杯的壁移动而产生卷边。

公开(公告)号：US4503903A

公开(公告)日：1985-03-12

申请号：US395549

申请日：1982-07-06

申请人： Arthur W. Kramer

发明人： Arthur W. Kramer

IPC分类号： F22B37/20 ,  F28D7/06 ,  F28F9/013 ,  F28F7/00

CPC分类号： F28D7/06 ,  F22B37/205 ,  F28F9/0131

摘要： Radial support of a tube support plate is provided by two associated members which also permit the position of the tube support plate to be adjusted with significantly improved ease. The apparatus comprises a jacking member which extends radially through the heat exchanger's inner shell and is in positive contact with its outer shell. A locking screw extends radially inward from the jacking screw and is in contact with the tube support plate. After this apparatus is used to centrally locate the tube support plate, it is welded together and to the inner shell.

摘要翻译： 管支撑板的径向支撑由两个相关联的构件提供，这两个相关联的构件也允许以显着改善的容易性调节管支撑板的位置。 该装置包括一个顶端部件，其径向延伸穿过热交换器的内壳并与其外壳正相接触。 锁定螺钉从顶起螺钉径向向内延伸并与管支撑板接触。 在该装置用于中心定位管支撑板之后，将其焊接在一起并连接到内壳。