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公开(公告)号：US4791801A
公开(公告)日：1988-12-20
申请号：US80928
申请日：1987-08-03
CPC分类号： G21C3/334 , G21Y2002/204 , G21Y2002/40 , G21Y2004/501 , G21Y2004/502 , Y02E30/40
摘要： Reversible fuel assembly grid tab repair tool having a tab bending member for remotely reforming fuel assembly grid tabs, wherein the tool has means for fine alignment of the tab bending member with the grid tab to be reformed. The grid tabs may be formed on the top and bottom edges of a grid strap which wraps a plurality of fuel rods disposed in the fuel assembly. The repair tool comprises a generally L-shaped frame having a vertical first leg and a horizontal second leg. Extending from the terminal end of the second leg is an alignment blade capable of being interposed between two fuel rods adjacent each side of the grid tab to be reformed. Attached to the top surface of the second leg at the terminus thereof is an anvil block having an anvil surface for bending the grid tab thereagainst when the grid tab is interposed between the anvil surface and the tab bending member. Extending from the anvil surface are a plurality of register pins capable of abutting the top and bottom edges of the grid strap for fine alignment of the tab bending member with the grid tab. A lever member pivotally connected to the repair tool is capable of translating the grid tab bending member towards the anvil surface for bending the grid tab against the anvil surface when the grid tab is interposed between the tab bending member and the anvil surface.
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公开(公告)号：US4637588A
公开(公告)日：1987-01-20
申请号：US605354
申请日：1984-04-30
CPC分类号： F16L55/136 , F22B37/222 , Y10S277/921
摘要： A nozzle dam for providing a fluid-tight seal across a primary fluid nozzle in the plenum of a nuclear steam generating vessel includes an elongated shaft coupled at one end thereof to an anchor assembly frictionally engageable with the inner surface of the nozzle to anchor the dam in place and a fluid-impermeable seal apparatus coupled to the shaft and closing the nozzle and frictionally engageable with the inner surface thereof to form a fluid-tight seal. The seal apparatus includes a circular plate disposable in wedging frictional engagement with a frustoconical portion of the nozzle inner surface. The shaft extends through a central aperture in the plate and is threadedly engaged with a nut which holds the plate in place. The anchor assembly includes a foldable tripod arrangement coupled to the shaft in such a way that movement of the shaft toward the seal plate effects an increase in the frictional anchoring force. The seal assembly also includes an inflatable portion. In one embodiment this inflatable portion extends around the perimeter of the seal plate and is readily expandable. In another embodiment the inflatable portion includes inflatable pillows disposed between the seal plate and the anchor assembly and inflatable for completely closing the nozzle. A foldable tripod centering mechanism and a shaft tensioning tool are also disclosed.
摘要翻译： 用于在核蒸汽发生容器的气室中的主流体喷嘴上提供流体密封的喷嘴坝包括在其一端处联接到锚固组件的细长轴，其与喷嘴的内表面摩擦接合以锚定坝 并且液体不可渗透的密封装置联接到轴并且关闭喷嘴并与其内表面摩擦接合以形成流体密封。 密封装置包括与喷嘴内表面的截头圆锥形部分楔入摩擦接合的圆形板。 轴延伸穿过板中的中心孔，并与固定板的螺母螺纹接合。 锚固组件包括以这样的方式联接到轴的可折叠的三脚架装置，使得轴朝向密封板的运动影响摩擦锚定力的增加。 密封组件还包括可充气部分。 在一个实施例中，该可充气部分围绕密封板的周边延伸并且易于扩张。 在另一个实施例中，可膨胀部分包括设置在密封板和锚固组件之间的可充气枕头，并可充气以完全关闭喷嘴。 还公开了可折叠的三脚架定心机构和轴张紧工具。
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公开(公告)号：US4238663A
公开(公告)日：1980-12-09
申请号：US953658
申请日：1978-10-23
CPC分类号： B23K7/005 , Y10T29/49821 , Y10T29/49828 , Y10T83/8854
摘要： One or more pairs of vertically-spaced-apart sidewardly-aimable plasma arc cutting torches, the upper one angled upward and the bottom one downward, on the end of a horizontal boom movable longitudinally fore and aft and angularly sideward, are used to double-cut the tube bundle of a steam generator progressively in a manner clearing a path that accommodates torch assembly advancement.
摘要翻译： 一对或多对垂直间隔开的侧向瞄准的等离子弧切割炬，上方一个向上倾斜的底部，一个向下倾斜的水平支臂的端部，其纵向前后移动并且有角度的侧向， 以清理容纳手电筒组件前进的路径的方式逐渐切割蒸汽发生器的管束。
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4.发明授权Method and tooling for dismantling, casking and removal of nuclear reactor core structures 有权核反应堆核心结构的拆除，包装和清除的方法和工具公开(公告)号：US07668281B2
公开(公告)日：2010-02-23
申请号：US11623864
申请日：2007-01-17
IPC分类号： G21C19/00
摘要： A method is provided for removing radioactive internals structural members in the core of a reactor pressure vessel in a containment vessel. The method includes placing a first cask in a first internals assembly, detaching radioactive first internals structural members from second internals structural members in the first internals assembly, placing the detached first internals structural members in the first cask, placing the first internals assembly in a second cask, and removing the second cask containing the first internals assembly and containing the casked detached radioactive first internals members from the containment vessel. The first internal members may be radioactive baffle plates, and the second internals members may be former plates bolted to the radioactive baffle plates. Novel tooling, framework and fixtures facilitate disassembling, moving and storing the radioactive baffle plates.
摘要翻译： 提供了一种用于去除安全壳中的反应堆压力容器的核心中的放射性内部结构构件的方法。 该方法包括将第一桶放置在第一内件组件中，从第一内件组件中的第二内部结构件分离放射性第一内部结构构件，将分离的第一内部结构构件放置在第一桶中，将第一内件组件放置在第二内件组件中 并且将包含第一内件组件的第二个容器移出并且从容纳容器中包含已经分离的放射性第一内部构件。 第一内部构件可以是放射性挡板，并且第二内部构件可以是螺栓连接到放射性挡板的前板。 新型工具，框架和夹具有助于拆卸，移动和存放放射性挡板。
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5.发明申请METHOD AND TOOLING FOR DISMANTLING, CASKING AND REMOVAL OF NUCLEAR REACTOR CORE STRUCTURES 有权核反应堆核心结构的分离，分离和去除的方法与工具公开(公告)号：US20090285345A1
公开(公告)日：2009-11-19
申请号：US11623864
申请日：2007-01-17
IPC分类号： G21C19/00
摘要： A method is provided for removing radioactive internals structural members in the core of a reactor pressure vessel in a containment vessel. The method includes placing a first cask in a first internals assembly, detaching radioactive first internals structural members from second internals structural members of the first internals assembly, placing the detached first internals structural members in the first cask, placing the first internals assembly in a second cask, and removing the second cask containing the first internals assembly and containing the casked detached radioactive first internals members from the containment vessel. The first internal members may be radioactive baffle plates, and the second internals members may be former plates bolted to the radioactive baffle plates. Novel tooling, framework and fixtures facilitate disassembling, moving and storing the radioactive baffle plates.
摘要翻译： 提供了一种用于去除安全壳中的反应堆压力容器的核心中的放射性内部结构构件的方法。 该方法包括将第一桶放置在第一内件组件中，从第一内件组件的第二内部结构件分离放射性第一内部结构构件，将分离的第一内部结构构件放置在第一桶中，将第一内件组件放置在第二内件组件中 并且将包含第一内件组件的第二个容器移出并且从容纳容器中包含已经分离的放射性第一内部构件。 第一内部构件可以是放射性挡板，并且第二内部构件可以是螺栓连接到放射性挡板的前板。 新型工具，框架和夹具有助于拆卸，移动和存放放射性挡板。
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6.发明授权
公开(公告)号：US5864594A
公开(公告)日：1999-01-26
申请号：US692840
申请日：1996-08-02
申请人： Leonard J. Balog , Bruce W. Bevilacqua , Ronald J. Hopkins , Arthur W. Kramer , Donald G. Sherwood
发明人： Leonard J. Balog , Bruce W. Bevilacqua , Ronald J. Hopkins , Arthur W. Kramer , Donald G. Sherwood
CPC分类号： G21C13/02 , G21C19/00 , G21C19/207 , G21Y2002/204 , G21Y2002/302 , G21Y2002/402 , G21Y2002/501 , G21Y2004/30 , G21Y2004/403 , G21Y2004/504 , Y02E30/40
摘要： An apparatus and method are provided for replacing the existing lower internal components in a nuclear reactor vessel with new components. The alignment of the new lower internals to the pressure vessel and the existing upper internals is achieved by customizing the new lower internals on-site based on alignment measurements obtained by gages installed on the new core barrel and the existing upper core plate. The gages allow the custom machining of radial support keys on the lower portion of the new core barrel and the custom drilling of upper core plate alignment pin holes in the new core barrel.
摘要翻译： 提供了一种装置和方法，用于用新的部件代替核反应堆容器中现有的较低内部部件。 新的下部内部件与压力容器和现有的上部内部件的对准是通过基于安装在新的芯筒和现有的上部芯板上的量规获得的对准测量现场定制新的下部内部件而实现的。 量具允许在新的芯筒的下部定制加工径向支撑键，并且在新的芯筒中定制钻上上芯板对准销孔。
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公开(公告)号：US5001818A
公开(公告)日：1991-03-26
申请号：US251694
申请日：1988-09-30
申请人： Arthur W. Kramer , Edward H. Smith
发明人： Arthur W. Kramer , Edward H. Smith
CPC分类号： B23C1/20 , G21C19/02 , G21C19/207 , Y10T29/5108 , Y10T408/5612 , Y10T408/91 , Y10T409/306216 , Y10T409/309912
摘要： A machining system for performing heavy duty milling and other repair operations under water is disclosed herein which is particularly useful in performing repair and maintenance operations in the core barrels of nuclear reactors. The machining system generally comprises a platform, a machining device which is detachably connectable to the platform which includes a drive motor and cutter necessary to effect the repair or maintenance operation, and a triaxial adjustment mechanism which permits the machine cutter to be precisely positioned at any desired location within the core barrel. The platform has a guide mechanism which includes both a rough and a fine guide means which precisely positions the machining device with respect to the platform when it is lowered thereon. A hydraulically operated lock remotely and detachably secures the machining device into position on the platform after the guide mechanism has properly positioned it. The platform is advantageously designed to be secured onto a component within the core barrel having a known and precise alignment with respect to the other core barrel components, such as the support lugs of the thermal shield, which in turn provides a mechanical reference point for the machine cutter attached to the platform.
摘要翻译： 本文公开了一种用于在水下执行重型铣削和其他修复操作的加工系统，其特别可用于在核反应堆的核心桶中进行修理和维护操作。 该加工系统通常包括平台，可拆卸地连接到平台的加工装置，该平台包括执行修理或维护操作所需的驱动马达和切割器;以及三轴调节机构，其允许机床切割器精确地定位在任何 核心筒内所需的位置。 平台具有引导机构，其包括粗略和精细引导装置，其在加工装置降低时相对于平台精确地定位加工装置。 在导向机构正确定位之后，液压操作的锁远程地和可拆卸地将加工装置固定在平台上的适当位置。 该平台有利地被设计成被固定在芯筒内的部件上，其具有相对于另一个芯部筒部件（例如热屏蔽件的支撑凸耳）的已知且精确的对准，其又提供了用于 机刀连接在平台上。
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8.发明授权System and method for removing and consolidating the fuel rods of a nuclear fuel assembly 失效用于去除和固结核燃料组件的燃料棒的系统和方法
公开(公告)号：US5000906A
公开(公告)日：1991-03-19
申请号：US476339
申请日：1990-02-07
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。
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9.发明授权
公开(公告)号：US4756067A
公开(公告)日：1988-07-12
申请号：US891016
申请日：1986-07-31
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。
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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
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。
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