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公开(公告)号：US5032350A
公开(公告)日：1991-07-16
申请号：US602395
申请日：1990-10-18
CPC分类号： F16L55/10 , F22B37/222
摘要： A system and method for installing a nozzle dam unit (26) in a nuclear steam generator having a head (12) including a head internal surface, a manway (14) penetrating the head, and a nozzle (16) penetrating the head. The system comprises a manipulator (76) adapted to be passed through the manway and having open end (82) adapted to be attached remotely to the head internal surface and a free end including a clamp member (104). A plurality of nozzle dam segments (54, 56, 58) are each sized to pass through the manway and carry means thereon (120) for engaging at least one other segment, the segments when fully engaged to each other forming a dam subassembly sized to pass into and seat against the nozzle. The manipulator is controlled so that the clamp member grasps and supports one of the dam segments within the head until the subassembly is formed within the head, and then is translated within the head until the dam subassembly seats within the nozzle.
摘要翻译： 一种用于在具有包括头部内表面的头部（12），穿透头部的井架（14）和穿透头部的喷嘴（16）的核蒸汽发生器中安装喷嘴坝单元（26）的系统和方法。 所述系统包括适于穿过所述通道并具有适于远程附接到所述头部内表面的开口端（82）的机械手（76）和包括夹紧构件（104）的自由端。 多个喷嘴坝段（54,56,58）的尺寸分别设置成穿过人造井道并在其上承载装置（120），用于接合至少一个其它段，所述段当彼此完全接合时形成大坝子组件， 进入并靠在喷嘴上。 操纵器被控制，使得夹紧构件抓住并支撑头部中的一个坝段，直到子组件形成在头部内，然后在头内平移，直到坝子组件位于喷嘴内。
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公开(公告)号：US4954312A
公开(公告)日：1990-09-04
申请号：US285056
申请日：1988-12-15
CPC分类号： F22B37/222 , F16L55/10 , Y10T29/49352 , Y10T29/49826
摘要： A system and method for installing a nozzle dam unit (26) in a nuclear steam generator having a head (12) including a head internal surface, a manway (14) penetrating the head, and a nozzle (16) penetrating the head. The system comprises a manipulator (76) adapted to be passed through the manway and having one end (82) adapted to be attached remotely to the head internal surface and a free end including a clamp member (104). A plurality of nozzle dam segments (54, 56, 58) are each sized to pass through the manway and carry means thereon (120) for engaging at least one other segment, the segments when fully engaged to each other forming a dam subassembly sized to pass into and seat against the nozzle. The manipulator is controlled so that the clamp member grasps and supports one of the dam segments within the head until the subassembly is formed within the head, and then is translated within the head until the dam subassembly seats within the nozzle.
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公开(公告)号：US5048570A
公开(公告)日：1991-09-17
申请号：US854359
申请日：1986-04-21
申请人： Eric M. Weisel , Glen E. Schukei
发明人： Eric M. Weisel , Glen E. Schukei
IPC分类号： G21C15/00 , F16L55/132 , F22B37/22 , G21C13/06
CPC分类号： F22B37/222 , F16L55/132
摘要： A multisectioned nozzle dam (30) for use in a steam generator (24) with an integral bolt ring (32) has a body structure of general circular shape. Redundant seals including at least three separate inflatable peripheral seals (48, 50 and 52) with an alarm (A) for indicating a pressure increase between the second and third seals (50 and 52) is provided. Redundant supports including a plurality of independent bars (60, 62, 64 and 66) bolted to the integral bolt ring (36) secure the dam (30) within the nozzle (26) to the appropriate axial position.
摘要翻译： 用于具有一体式螺栓环（32）的蒸汽发生器（24）中的多段喷嘴坝（30）具有一般圆形的主体结构。 提供冗余密封件，其包括至少三个单独的可充气外围密封件（48,50和52），其具有用于指示第二和第三密封件（50和52）之间的压力增加的报警器（A）。 螺栓连接到整体式螺栓环（36）上的多个独立的杆（60,62,64和66）的冗余支撑件将喷嘴（26）内的挡板（30）固定到适当的轴向位置。
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公开(公告)号：US4860919A
公开(公告)日：1989-08-29
申请号：US225973
申请日：1988-07-29
申请人： Eric M. Weisel , Glen E. Schukei
发明人： Eric M. Weisel , Glen E. Schukei
IPC分类号： F16J15/46 , F16L55/136 , F22B37/22
CPC分类号： F16L55/136 , F16J15/46 , F22B37/222
摘要： A nuclear steam supply steam generator primary nozzle 16 is sealed by a nozzle dam having segmented bulkhead portions 42 and 45 with peripheral flanges 46,50,52. A rubber diaphragm with a body 54 and peripheral strata form oppositely opening cavities 56 and 58. Hydraulic pressure from either side enters one of the cavities to create a radial sealing force against the inside surface of nozzle 16. A closed cell foam rubber sealing material 76 of 20 to 30 durometer can be interposed between the cavity defining strata and the surface 16 to improve sealing. A hinged retaining ring 70 is pinned to hold the nozzle dam against radial surface 68 machined in nozzle 16.
摘要翻译： 核蒸汽供应蒸汽发生器主喷嘴16由具有分段的隔板部分42和45的喷嘴坝密封，具有周边凸缘46,50,52。 具有主体54和周围层的橡胶隔膜形成相对的开口空腔56和58.来自任一侧的液压进入其中一个空腔以产生抵靠喷嘴16的内表面的径向密封力。闭孔泡沫橡胶密封材料76 可以在空腔限定层和表面16之间插入20至30的硬度计，以改善密封。 铰接的保持环70被固定以将喷嘴坝抵靠在喷嘴16中加工的径向表面68。
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公开(公告)号：US5436945A
公开(公告)日：1995-07-25
申请号：US160853
申请日：1993-12-03
申请人： Eric M. Weisel , John F. Mullooly
发明人： Eric M. Weisel , John F. Mullooly
CPC分类号： G21C11/06 , G21C11/022 , G21Y2002/207 , G21Y2004/30 , Y02E30/40
摘要： Disclosed is a method for reducing embrittlement of certain materials of pressurized water reactor vessels caused by neutron flux. According to this method, "shadow shielding" is placed within the core support barrel in areas having a more benign flow environment than that of the downcomer area. This shadow shielding provides an increased neutron scattering cross section. In one example, the shadow shielding replaces segments of the core shroud plate in a manner which does not interfere with coolant flow in the vessel. The segments of the shroud plate which are replaced are those near critical regions of the vessel, typically welds. The size and shape of the shielding is determined according to plant specific requirements.
摘要翻译： 公开了一种减少由中子通量引起的某些加压水反应堆容器的脆化的方法。 根据该方法，在具有比降液管区域更流畅的流动环境的区域中的“核心支撑筒”内设置“阴影屏蔽”。 该阴影屏蔽提供了增加的中子散射横截面。 在一个示例中，阴影屏蔽以不干扰容器中的冷却剂流动的方式替代核心护罩板的段。 被替换的护罩板的部分是在容器的临界区域附近的部分，通常是焊接的。 屏蔽的尺寸和形状根据工厂的具体要求确定。
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公开(公告)号：US4744392A
公开(公告)日：1988-05-17
申请号：US19725
申请日：1987-02-27
CPC分类号： F16B5/10 , F16L55/10 , F22B37/222 , Y10T292/0866 , Y10T292/0868
摘要： A bolt and keeper secure nuclear steam generation isolation dam segments in assembled relation. The bolt is rotated into locked position with its handle in a slot as a transverse projection on the bolt end is moved along a ramp into a securing notch against the bias of a compressible rubber spring.
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公开(公告)号：US09082519B2
公开(公告)日：2015-07-14
申请号：US12638138
申请日：2009-12-15
申请人： Eric M. Weisel , Kenneth V. Margotta , Daniel Walus , Thomas J. Schildkamp , Joseph J. Hahn , Michael D. Heibel
发明人： Eric M. Weisel , Kenneth V. Margotta , Daniel Walus , Thomas J. Schildkamp , Joseph J. Hahn , Michael D. Heibel
IPC分类号： G21C17/108 , G21C13/02 , G21C17/10 , G21C17/116 , G21C19/02
CPC分类号： G21C19/02 , G21C13/02 , G21C17/10 , G21C17/116 , Y02E30/40
摘要： A telescoping guide for extraction and reinsertion support handling of in-core instrument thimble assemblies in the area above the upper support plate in the upper internals of a pressurized water reactor. The telescoping guides extend between the upper ends of the upper internals support columns and an axially movable instrumentation grid assembly which is operable to simultaneously raise the telescoping guides and extract the in-core instrument thimble assemblies from the reactor fuel assemblies.
摘要翻译： 用于提取和重新插入的伸缩引导件支持在压力水反应堆的上部内部中的上支撑板上方的区域中处理芯内仪器套管组件。 伸缩引导件在上部内部支撑柱的上端和可轴向移动的仪表栅格组件之间延伸，其可操作以同时升高伸缩引导件并从反应堆燃料组件提取核心内仪器套管组件。
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公开(公告)号：US5169594A
公开(公告)日：1992-12-08
申请号：US828550
申请日：1992-01-30
IPC分类号： F22B37/22 , G21C13/067
CPC分类号： F22B37/222 , G21C13/067 , Y02E30/40
摘要： A method of remotely installing or removing and assembling and disassembling nozzle dams (10) from outside a steam generator manway (14) using a tool set. The tools are a bifurcated segment lifting (torquing and push-pull) tool 60 to unweight and faciltate the operation of sliding dam segments (30,32) edgewise along sliding brackets (40) and bars (44) in an assembly and disassembly operation; a cam-lock component (36) operating T-shaped tool (80) with a nozzle dam rib avoiding offset (88), transverse quick-connect body (50b) straddling tool (90) pull a sleeve (50c) in order to disassembly quick-connects; and, a gasket installing, tensioning and removing hook tool (102).
摘要翻译： 一种使用工具组远程安装或拆卸和拆卸喷水坝（10）的方法，该喷水坝（10）从蒸汽发生器井道（14）的外部进行拆卸。 这些工具是分段提升（扭矩和推拉）工具60，用于在组装和拆卸操作中使滑动支架（40）和杆（44）沿边沿滑动节段（30,32）的操作重量和平整; 操作T形工具（80）的凸轮锁定部件（36），其具有避免偏移（88）的喷嘴阻挡肋，横向快速连接体（50b）跨接工具（90）拉动套筒（50c）以便拆卸 快速连接 以及衬垫安装，张紧和移除钩工具（102）。
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