公开(公告)号：US20240300061A1

公开(公告)日：2024-09-12

申请号：US18254694

申请日：2021-11-12

申请人： Rolls-Royce SMR Limited

发明人： Daniel ROBERTSON ,  Euan SHARP ,  Gerard HALLIDAY ,  Stephen CALVERT ,  Matthew MORRIS

IPC分类号： B23P19/06 ,  G21C13/024 ,  G21C13/073 ,  G21C19/10 ,  G21C19/20

CPC分类号： B23P19/067 ,  G21C13/024 ,  G21C13/073 ,  G21C19/10 ,  G21C19/207

摘要： Disclosed is a method of tensioning/detensioning closure studs of a nuclear reactor vessel. The closure studs are spaced about a circumference of the reactor vessel so as to attach an integrated head package (IHP) of the reactor vessel to a body of the reactor vessel. The method comprises supporting a first stud tensioner device on a trolley, moving the trolley across a movement surface from a stored position to a deployment position adjacent the reactor vessel, engaging the first stud tensioner device with one or more of the closure studs, and operating the first stud tensioner device to tension/detension the one or more closure studs.

公开(公告)号：US20130205575A1

公开(公告)日：2013-08-15

申请号：US13881647

申请日：2012-01-26

申请人： Katsumi Imi

发明人： Katsumi Imi

IPC分类号： B25B21/00

CPC分类号： B25B21/002 ,  B23P19/067 ,  B25B29/02 ,  G21C13/073 ,  G21C19/02 ,  G21C19/20 ,  Y10T29/49948 ,  Y10T29/53687 ,  Y10T29/53991

摘要： A fastening and loosening device is provided with a device main body (101) having an upper portion supported along an arrangement direction of stud bolts (65) in a freely movable manner by a conveyance device (73), a bolt tensioner (102) freely ascendable/descendable with respect to the stud bolts (65) together with the device main body (101) by a lift device (74), a guide device (103) coupled with the device main body (101) in a freely relatively movable manner via a cylinder (121) and having right and left guide members (123 and 124) contactable with an outer periphery of a nut (66) from both the right and left sides of a moving direction of the device main body (101), and a guide position adjustment device (105) capable of moving an inner guide member (123) in a horizontal direction intersecting with the moving direction of the device main body (101).

摘要翻译： 一种紧固和松动装置，具有装置主体（101），其具有通过输送装置（73）以可自由移动的方式沿着双头螺栓（65）的排列方向被支撑的上部，螺栓张紧器（102）自由地 相对于双头螺栓（65）可通过提升装置（74）与装置主体（101）相比上升/下降，与装置主体（101）以可自由相对移动的方式联接的导向装置（103） 并且具有从装置主体（101）的移动方向的左右两侧与螺母（66）的外周接触的左右导向部件（123,124），以及 引导位置调整装置，能够使与内装置主体（101）的移动方向相交的水平方向移动内引导构件（123）。

公开(公告)号：US20030068002A1

公开(公告)日：2003-04-10

申请号：US09973500

申请日：2001-10-08

发明人： Mark A. Marra ,  Reginald R. Dulaney

IPC分类号： G21C009/00

CPC分类号： G21C13/073 ,  F16B37/14 ,  G21Y2002/303 ,  G21Y2004/303 ,  Y02E30/40

摘要： A stud enclosure for protecting a stud extending upwardly from a nuclear reactor pressure vessel (RPV) flange has a cylindrical can with a capped end and an open end. The capped end has an axially extending hole with a screw extending therein for fastening the stud enclosure to the stud. A seal ring is disposed adjacent the open end of the cylindrical can for sealing the ring on the RPV flange. A gas valve is disposed in the capped end of the cylindrical can for pressurizing the interior portion of the can with air. The stud enclosure is used to protect the RPV studs after the RPV head has been removed in order to permit access to the interior portions of the RPV. This use includes the steps of: removing RPV fastener nuts and washers from RPV studs extending from the RPV flange through stud holes in the flange of the RPV head while the RPV head is supported on the RPV flange; placing stud enclosures over the studs and into physical contact with the RPV flange while the RPV head is supported on the RPV; fastening the stud enclosures to the studs; and pressurizing the internal portion of the stud enclosures with a gas.

摘要翻译： 用于保护从核反应堆压力容器（RPV）法兰向上延伸的螺柱的螺柱外壳具有带有封端和开口端的圆柱形罐。 封盖端部具有轴向延伸的孔，其中延伸有螺钉，用于将螺柱外壳固定到螺栓。 密封环邻近圆柱形罐的开口端设置，用于密封RPV法兰上的环。 在圆筒形罐的封端中设置有一个气阀，用空气对容器的内部加压。 螺栓外壳用于在RPV头部拆卸后保护RPV螺栓，以便允许进入RPV的内部。 这种使用包括以下步骤：从RPV法兰延伸的RPV螺柱上卸下RPV紧固螺母和垫圈，RPV头部的RPV头支撑在RPV法兰上; 在RPV支撑RPV头时，将螺栓外壳放置在螺柱上并与RPV法兰物理接触; 将螺栓外壳固定到螺柱上; 并用气体对柱塞外壳的内部部分加压。

公开(公告)号：US20030026378A1

公开(公告)日：2003-02-06

申请号：US10254714

申请日：2002-09-25

申请人： Advent Engineering Services, Inc.

发明人： Ravi Baliga ,  Key Y. Choi

IPC分类号： G21C019/00

CPC分类号： G21C13/073 ,  G21Y2002/303 ,  G21Y2004/303 ,  Y02E30/40

摘要： An integrated head assembly (100) is disclosed for a nuclear reactor. The preferred integrated head assembly includes a lift assembly (150) that supports the reactor vessel closure head (90) and integrated head assembly for removal, a separate support structure (202) supported by a ring beam (151) that sits atop the reactor vessel closure head, a shroud assembly (200), a seismic support system (300), a baffle assembly (500), a missile shield (400), and a CRDM cooling system. The CRDM cooling system draws cooling air into the baffle assembly, downwardly past the CRDMs (96), outwardly to upright air ducts (600), upwardly to an upper plenum (680), and out of the assembly through the air fans (190).

公开(公告)号：US6061415A

公开(公告)日：2000-05-09

申请号：US224545

申请日：1998-12-31

申请人： Alexander Whitecross Harkness ,  Michael Francis Hankinson

发明人： Alexander Whitecross Harkness ,  Michael Francis Hankinson

IPC分类号： G21C1/00 ,  G21C1/08 ,  G21C7/12 ,  G21C13/00 ,  G21C13/073 ,  G21C11/00 ,  G21C15/00

CPC分类号： G21C7/12 ,  G21C13/073 ,  G21Y2002/201 ,  G21Y2002/202 ,  G21Y2002/304 ,  G21Y2002/402 ,  G21Y2002/501 ,  G21Y2004/30 ,  Y02E30/39

摘要： An integrated head assembly for a nuclear reactor pressure vessel includes a closure head with CRDM assemblies extending upwardly from the head. A CRDM seismic support disposed above the closure head provides lateral support for the CRDM assemblies. The seismic support also has air flow holes which communicate with the interior of a shroud enclosing the CRDMs and extending upwardly from the closure head to the seismic support. The shroud has an air port in direct air flow communication with the surrounding atmosphere so that the closure head, shroud and seismic support define an air flow passageway directly communicating with the surrounding atmosphere via the air port and without the extensive ductwork and, therefore, with substantially less power. A missile shield disposed above and in air flow communication with the seismic support provides a lightweight, compact physical barrier for removing energy from dislocated objects such as CRDM drive rods.

摘要翻译： 用于核反应堆压力容器的集成头组件包括具有从头部向上延伸的CRDM组件的封闭头。 设置在封闭头上方的CRDM地震支架为CRDM组件提供横向支撑。 地震支架还具有气流孔，该气流孔与包围CRDM的护罩的内部连通，并从闭合头向上延伸到地震支座。 护罩具有与周围空气直接气流连通的空气口，使得封闭头，护罩和地震支架限定通过空气口直接与周围大气连通的空气流动通道，并且没有广泛的管道系统，因此， 大大减少功率。 设置在地震支架上方并与空气流连通的导弹盾构提供了一种轻量化，紧凑的物理屏障，用于从诸如CRDM驱动杆的位错物体中去除能量。

公开(公告)号：US4759898A

公开(公告)日：1988-07-26

申请号：US912002

申请日：1986-09-26

申请人： Guy Lemercier

发明人： Guy Lemercier

IPC分类号： G21C1/03 ,  G21C13/06 ,  G21C13/073 ,  G21C15/02

CPC分类号： G21C1/03 ,  G21C13/073 ,  Y02E30/34 ,  Y02E30/35

摘要： In a liquid metal-cooled fast neutron nuclear reactor which has a vessel sealed by a horizontal slab on which is suspended a core cover plug, the lower part of said plug comprises a deflecting grid, optionally duplicated by a thermal protection grid. Each of the grids is formed from a peripheral plate and modular plates defining between them passages for the liquid metal. The peripheral plates can be fixed to a perforated part of an external ferrule or can be suspended on a core cover plate by tie bolts and/or by certain of the control rod guidance sleeves. The modular plates are fixed to the other sleeves and traversed by sodium sampling tubes and tubes for housing thermocouples.

摘要翻译： 在液体金属冷却的快中子核反应堆中，其具有由其上悬挂有芯盖塞的水平板密封的容器，所述塞子的下部包括偏转栅格，可选地由热保护栅格重复。 每个栅格由周边板和模块板形成，在其间限定用于液态金属的通道。 外围板可以固定到外部套圈的穿孔部分，或者可以通过连接螺栓和/或某些控制杆引导套筒悬挂在芯盖板上。 模块化板固定到其他套管上，并由钠取样管和管道进行横穿，用于外壳热电偶。

公开(公告)号：US4756879A

公开(公告)日：1988-07-12

申请号：US613882

申请日：1984-05-24

申请人： Gilbert Arene ,  Philippe Verriere ,  Luigi Pierazzi ,  Charley Renaux

发明人： Gilbert Arene ,  Philippe Verriere ,  Luigi Pierazzi ,  Charley Renaux

IPC分类号： G21C1/03 ,  G21C13/073 ,  G21C15/02 ,  G21C17/02 ,  G21C13/06

CPC分类号： G21C1/03 ,  G21C13/073 ,  Y02E30/34 ,  Y02E30/35

摘要： Core cover plug for a liquid metal-cooled nuclear reactor.It comprises a structure constituted in part by suspension elements fixed to the lower plate of the small rotary plug, and in part by control rod sleeve elements and a conical deflecting plate positioned directly above the core. The suspension elements, which can either be rod sleeves or rigid tie rods, support the sleeve elements by means of one or more grids constituted by intersecting vertical plates. The deflecting plate, which itself carries a group of sampling tubes, is fixed to certain sleeve elements by a connection permitting radial sliding.

摘要翻译： 用于液体金属冷却核反应堆的芯盖塞。 它包括部分地由固定到小旋转塞的下板的悬架元件构成的结构，并且部分地由控制杆套筒元件和位于芯的正上方的锥形偏转板构成。 可以是杆套筒或刚性拉杆的悬挂元件通过由相交的垂直板构成的一个或多个网格支撑套筒元件。 其本身携带一组采样管的偏转板通过允许径向滑动的连接件固定到某些套筒元件。

公开(公告)号：US4645640A

公开(公告)日：1987-02-24

申请号：US578337

申请日：1984-02-09

申请人： William C. Ritz

发明人： William C. Ritz

IPC分类号： G21C13/073 ,  G21C19/18 ,  G21C19/19 ,  G21C19/20

CPC分类号： G21C19/18 ,  G21C13/073 ,  Y02E30/40

摘要： A nuclear reactor refueling system for a liquid metal-cooled fast breeder reactor includes a large rotatable plug (18) eccentrically mounted relative to the reactor core (12), and a small rotatable plug (24) mounted within the large plug (18). A fuel handling machine (28) is rotatably mounted upon the small plug (24), and the eccentric mounting of the large plug (18) permits the fuel handling machine (28) to access all areas of the reactor core (12) as well as a fuel transfer station or port (34) located externally of the reactor core barrel (16) yet internally of the reactor pressure vessel. A unique six-fingered star-shaped upper internals structure (36) is eccentrically mounted upon the large plug (18) so as to be concentrically disposed relative to the core (12) when the reactor is in operation yet permitting access to the central-most fuel assemblies (14) of the core (12) as the large rotatable plug (18) is rotated during refueling operations. The uniquely configured upper internals structure (36 ), as well as the eccentric mounting of the large plug (18) relative to the core barrel (16) and the provision of the small plug (24) eccentrically mounted upon the large plug (18) permits the diametrical extent of the large plug (18) to be precisely the same as that of the core barrel (16).

摘要翻译： 用于液体金属冷却的快速增殖反应器的核反应堆加油系统包括相对于反应堆芯（12）偏心安装的大的可旋转塞（18）和安装在大塞子（18）内的小的可旋转塞（24）。 燃料处理机（28）可旋转地安装在小插头（24）上，并且大插头（18）的偏心安装允许燃料处理机（28）同时进入反应堆堆芯（12）的所有区域 作为位于反应堆堆芯筒（16）外部的燃料转运站或端口（34），而在反应堆压力容器的内部。 独特的六指星形上部内部结构（36）偏心地安装在大塞子（18）上，以便当反应器运行时能够相对于芯部（12）同心地设置， 作为大的可旋转塞（18）的芯（12）的大部分燃料组件（14）在加油操作期间旋转。 独特构造的上部内部结构（36）以及大插头（18）相对于芯筒（16）的偏心安装以及偏心地安装在大插头（18）上的小插头（24）的设置， 允许大塞子（18）的直径范围与芯筒（16）的直径范围完全相同。

公开(公告)号：US4421714A

公开(公告)日：1983-12-20

申请号：US211141

申请日：1980-11-28

申请人： Peter Dronkers

发明人： Peter Dronkers

IPC分类号： G21C13/032 ,  G21C13/04 ,  G21C13/073 ,  G21C19/28 ,  G21C13/00

CPC分类号： G21C13/073 ,  G21C13/032 ,  G21C13/04 ,  Y02E30/40

摘要： In this type of nozzle penetration, the nozzle (6) consists of a material different than that of the closure (1). In addition, closure (1) is provided with an inside plating. In order to avoid heat stresses on the tension coupling (15) between nozzle (6) and closure (1), a compensating ring (8) is provided between the shoulder (9) of nozzle (6) and contact surface (7) of closure (1). The height "h" of the compensating ring (8) and its material are selected in such a way that the change in elongation resulting from heat expansion of the nozzle and closure materials is compensated in the region of the distance extending from shoulder (9) to tension coupling (15). The material and height "h" can be selected in such a way that a predictable difference in stress is created in the area of the tension coupling upon heating.

摘要翻译： 在这种类型的喷嘴穿透中，喷嘴（6）由与封盖（1）不同的材料组成。 此外，封闭件（1）设置有内部电镀。 为了避免喷嘴（6）和封闭件（1）之间的张力联接（15）上的热应力，在喷嘴（6）的肩部（9）和喷嘴（6）的接触表面（7）之间设置补偿环（8） 关闭（1）。 选择补偿环（8）及其材料的高度“h”，使得从肩部（9）延伸的距离区域补偿由喷嘴和封闭材料的热膨胀引起的伸长变化， 拉紧联轴器（15）。 可以选择材料和高度“h”，使得在加热时的张力耦合区域中产生可预测的应力差异。

公开(公告)号：US4288292A

公开(公告)日：1981-09-08

申请号：US28018

申请日：1979-04-06

申请人： Roy T. Hardin, Jr. ,  Carl D. Kurinko

发明人： Roy T. Hardin, Jr. ,  Carl D. Kurinko

IPC分类号： F16L3/01 ,  G21C13/073 ,  H02G11/02 ,  G21C13/10 ,  H02G11/00

CPC分类号： F16L3/01 ,  G21C13/073 ,  H02G11/02 ,  Y02E30/40

摘要： Apparatus for providing connection between two members having relative movement in a horizontal plane in a rotary or linear fashion. The apparatus includes a set of vertical surfaces affixed to each of the members, laterally aligned across a selected vertical gap. A number of cables or hoses, for electrical, hydraulic, or pneumatic connection are arranged between consecutive surfaces in a C-shaped traveling loop, connected through their end portions to the two respective members, so that through a sliding motion portions of the cable are transferred from between one set of surfaces to the other aligned set, across the gap, upon relative motion of the members. A number of flexible devices are affixed to the upper set of surfaces for supporting the upper portion of each looped cable. The apparatus is particularly adaptable to an area having limited lateral clearances and requiring signal level separation between electrical cables, such as found in the rotating plugs and associated equipment of the reactor vessel head of a nuclear reactor.

摘要翻译： 用于在旋转或线性方式中在水平面内相对运动的两个构件之间提供连接的装置。 该装置包括固定到每个构件的一组垂直表面，横向选定的垂直间隙横向对准。 用于电气，液压或气动连接的许多电缆或软管被布置在C形行进环中的连续表面之间，通过其端部连接到两个相应的构件，使得通过电缆的滑动运动部分 在组件的相对运动之间，跨越间隙从一组表面之间转移到另一对准的组。 多个柔性装置固定到上部的一组表面上，用于支撑每个环形电缆的上部。 该装置特别适用于具有有限横向间隙的区域，并且要求电缆之间的信号水平间隔，例如在核反应堆的反应器容器头部的旋转塞子和相关设备中发现的。