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公开(公告)号：US4170517A
公开(公告)日：1979-10-09
申请号：US502315
申请日：1974-09-03
IPC分类号： G21C13/00 , G21C13/028 , G21C19/20
CPC分类号： G21C13/028 , Y02E30/40
摘要： A nuclear reactor containment arrangement incorporating a permanent cavity to vessel seal in the form of a flexible quarter-circular annular steel gasket affixed to and extending between the reactor vessel seal plate and cavity wall. The seal functions to isolate the periphery of the vessel from a permanent water-tight compartment above the reactor vessel which is flooded during refueling operations to minimize the release of radiation upon exposure of the nuclear core. The seal is designed to accommodate both radial and axial expansion of the pressure vessel relative to the cavity wall occurring during reactor operation without breaking the water-tight integrity of the seal. The pressure vessel ventilation system is provided with an air exit duct at the reactor nozzle level to facilitate the circulation of air around the periphery of the vessel which would otherwise be restricted at the seal to vessel interface.
摘要翻译： 一种核反应堆安全壳装置，其包括固定到反应堆容器密封板和空腔壁之间并在反应堆容器密封板和空腔壁之间延伸的柔性四分之一圆形环形钢垫片形式的容器密封件的永久空腔。 密封件用于将容器的周边与加油操作期间淹没的反应堆容器上方的永久性不透水隔室隔离，以使核芯暴露时辐射的释放最小化。 密封件被设计成适应压力容器相对于反应器操作期间发生的空腔壁的径向和轴向膨胀，而不破坏密封件的水密完整性。 压力容器通风系统在反应器喷嘴水平处设置有空气出口管道，以便于围绕容器外围的空气循环，否则这些空气将被限制在密封件处于容器界面处。
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公开(公告)号：US4519519A
公开(公告)日：1985-05-28
申请号：US352601
申请日：1982-02-26
CPC分类号： G21F7/005 , G21C13/0285 , Y02E30/40 , Y10T292/0847
摘要： A quick opening hatch for use on a transfer tube of a nuclear reactor plant that is adapted to replace the conventional hatch on the transfer tube. A locking ring is provided with a plurality of screw openings that is adapted for connection to the transfer tube, and a hatch cover fitably received within the locking ring for closing-off the transfer tube. To lock the cover to the ring, latches are movably connected with the cover for locking engagement with the locking ring, and a sprocket with a plurality of crank arms is movably connected with the cover and the latches for movement thereof into locking engagement with a latch housing on the locking ring for locking the cover to the ring and out of engagement with the latch housing for releasing the cover from the locking ring so as to permit removal of the hatch cover from the locking ring to provide access to the transfer tube. A davit assembly is provided which is connected with the transfer tube and the hatch cover to move the cover away and to provide guidance for closing-off the transfer tube. The locking ring and hatch cover also include cooperating keys and keyways for alignment when closing the transfer tube. The cover is provided with sealing rings and the latch housing and latches include cooperating cam surfaces to provide a tight locking engagement by compressing the sealing rings between the transfer tube and the hatch cover.
摘要翻译： 用于在核反应堆设备的输送管上使用的快速开口舱，其适于替代传送管上的常规舱口。 锁定环设置有适于连接到传送管的多个螺钉开口，以及可配合地容纳在锁定环内用于封闭传送管的舱口盖。 为了将盖锁定到环上，闩锁与盖子可移动地连接，以与锁定环锁定接合，并且具有多个曲柄臂的链轮与盖和闩锁可移动地连接，以使其与闩锁的锁定接合 壳体位于锁定环上，用于将盖锁定到环上，并且与闩锁壳体脱离接合，用于将盖从锁定环释放，以便允许从锁定环移除舱口盖以提供对输送管的通路。 提供一种吊架组件，其与传送管和舱口盖连接以移动盖并提供关闭传送管的引导。 锁定环和舱口盖还包括协作键和键槽，用于在关闭传送管时进行对准。 盖设有密封环，并且闩锁壳体和闩锁包括配合的凸轮表面，以通过压缩传送管和舱口盖之间的密封环来提供紧密的锁定接合。
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3.发明授权Radiation shield ring assembly and method of disassembling components of a nuclear steam generator using such assembly 失效辐射屏蔽环组件和使用这种组件拆卸核蒸汽发生器部件的方法
公开(公告)号：US4299658A
公开(公告)日：1981-11-10
申请号：US53447
申请日：1979-06-29
IPC分类号： G21C17/003 , F22B37/02 , F22B37/58 , G21D1/00 , B23P19/04
CPC分类号： G21D1/003 , F22B37/58 , Y02E30/40 , Y10T29/49352
摘要： This invention provides shielded access to the irradiated heat exchanger tube bundle of a nuclear steam generator contained within a cask after removal from the generator. This tube bundle must be reduced in size and confined for removal from the containment building through hatchways of generally limited size. Access to the enclosed bundle is at the flanged joints of adjacent sections forming the cask and which are vertically separated to permit an oxygen lance to be inserted therein for burning the tubes at that level. A rotatably supported annular seal ring covers the separation and shields against the escape of radiation or irradiated material during the burning process. The ring provides access ports through which roller supports are mounted on the cask and provide access of the cutting tool to the tubes. Rotation of the ring on the rollers permits the tool to be inserted completely around the cask. After the tubes within one section of the cask are severed, the tubes and that portion of the cask are removed and the ring raised to a next position where the procedure is repeated.
摘要翻译： 本发明提供了在从发生器移除之后对包含在桶内的核蒸汽发生器的辐射热交换器管束的屏蔽通路。 该管束的尺寸必须减小，并限制为通过通常有限尺寸的舱口从安全壳建筑物移走。 进入封闭的束是在形成桶的相邻部分的带凸缘的接头处，并且垂直分离，以允许将氧枪插入其中以在该水平处燃烧管。 旋转支撑的环形密封环在燃烧过程中覆盖分离并防止辐射或照射材料的逸出。 该环提供了进入端口，滚筒支撑件通过该端口安装在该桶中并提供切割工具进入管道的通路。 滚轮上的环的旋转允许将工具完全插入桶中。 在桶的一个部分中的管被切断之后，管和桶的那部分被移除，并且环被升高到重复该过程的下一个位置。
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公开(公告)号：US5687207A
公开(公告)日：1997-11-11
申请号：US627747
申请日：1996-04-02
IPC分类号： G21C19/20
CPC分类号： G21C19/205 , G21Y2002/202 , G21Y2002/40 , G21Y2004/304 , G21Y2004/501 , G21Y2004/504
摘要： A refueling machine for refueling a pressurized water reactor has a trolley which travels on rails mounted on a transversely movable bridge. The trolley supports a refueling mast which includes an outer mast and two horizontally spaced apart, vertically movable gripper masts disposed within the outer mast. This design permits the machine to safely handle two fuel assemblies simultaneously in order to substantially reduce refueling critical path time. The two gripper masts can be raised, lowered and otherwise operated independently of each other. A partition plate extending through the stationary mast between the two movable gripper masts permits each fuel assembly held in the refueling mast to be independently leak tested.
摘要翻译： 用于加压压水反应堆的加油机具有在安装在横向可移动的桥上的轨道上行进的小车。 手推车支撑一个加油桅杆，其包括设置在外桅杆内的外桅杆和两个水平间隔开的可垂直移动的桅杆桅杆。 该设计允许机器同时安全地处理两个燃料组件，以便基本上减少加油关键路径时间。 两个夹具桅杆可以相互独立地升高，降低和另外操作。 在两个可移动的夹持器桅杆之间延伸穿过固定桅杆的隔板允许保持在加油桅杆中的每个燃料组件被独立地进行泄漏测试。
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公开(公告)号：US5588031A
公开(公告)日：1996-12-24
申请号：US330058
申请日：1994-10-27
CPC分类号： G21C13/02 , G21C5/10 , G21Y2002/402 , G21Y2004/301 , G21Y2004/503 , Y02E30/40
摘要： An apparatus, which reinforces a shroud that is contained within a reactor vessel, is operable for reinforcement of the shroud in the event of cracking in the shroud. The apparatus comprises a reactor wall positioned surrounding the shroud. A beam is attached to and extends generally axially on the shroud for absorbing the forces generated by the cracking in the shroud, and a radial support is positioned between the beam and the wall of the reactor vessel for transmitting any forces absorbed by the beam to the wall.
摘要翻译： 一种加强装在反应堆容器内的护罩的装置可操作用于在护罩发生龟裂的情况下加强护罩。 该装置包括围绕护罩定位的反应器壁。 梁被大体上轴向安装在护罩上，用于吸收由护罩中的裂缝产生的力，并且径向支撑件位于反应堆容器的梁和壁之间，用于将由梁吸收的任何力传递到 壁。
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6.发明授权Jet pump assembly for recirculating coolant through a recirculation loop of a boiling water reactor vessel 失效用于使冷却剂循环通过沸水反应堆容器的再循环回路的喷射泵组件
公开(公告)号：US5515407A
公开(公告)日：1996-05-07
申请号：US295567
申请日：1994-08-25
CPC分类号： G21C15/25 , G21Y2002/104 , G21Y2002/303 , G21Y2004/301 , Y02E30/31
摘要： A jet pump assembly for recirculating coolant through a recirculation loop of a boiling water reactor vessel, the jet pump assembly comprises a jet pump in operative association with the recirculation loop for forcing the coolant through the recirculation loop. A beam is positioned adjacent and in operative association with the jet pump for assisting in maintaining the positional relationship of the jet pump. A bolt is inserted in the beam for resisting the hydraulic forces generated in the jet pump, and an insert is disposed in said beam for receiving and surrounding the bolt which, in turn, reduces stress on the beam.
摘要翻译： 一种用于使冷却剂再循环通过沸水反应器容器的再循环回路的喷射泵组件，喷射泵组件包括与再循环回路有效连接的喷射泵，用于迫使冷却剂通过再循环回路。 梁被定位成与喷射泵相邻并且与喷射泵可操作地相关联，以协助维持喷射泵的位置关系。 螺栓插入梁中以抵抗在喷射泵中产生的液压力，并且插入件设置在所述梁中，用于接收和围绕螺栓，这又降低了梁上的应力。
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公开(公告)号：US5412700A
公开(公告)日：1995-05-02
申请号：US840232
申请日：1992-02-24
CPC分类号： G21C19/20 , G21Y2002/501 , G21Y2004/30
摘要： A method of refueling a nuclear reactor whereby the drive mechanism is disengaged and removed by activating a jacking mechanism that raises the closure head. The area between the barrier plate and closure head is exhausted through the closure head penetrations. The closure head, upper drive mechanism, and bellows seal are lifted away and transported to a safe area. The barrier plate acts as the primary boundary and each drive and control rod penetration has an elastomer seal preventing excessive tritium gases from escaping. The individual instrumentation plugs are disengaged allowing the corresponding fuel assembly to be sealed and replaced.
摘要翻译： 一种加装核反应堆的方法，由此驱动机构通过启动提升封闭头的顶起机构而脱离和移除。 阻挡板和闭合头之间的区域通过封闭头穿透而被排出。 闭合头，上驱动机构和波纹管密封件被提起并运送到安全区域。 阻挡板作为主要边界，每个驱动和控制杆穿透都具有防止过量的氚气逸出的弹性体密封。 单独的仪表插头脱开，允许相应的燃料组件被密封和更换。
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公开(公告)号：US4086132A
公开(公告)日：1978-04-25
申请号：US685827
申请日：1976-05-13
CPC分类号： G21C19/20 , G21C19/105
摘要： A combined fuel assembly and thimble plug gripper for raising and lowering a fuel assembly into a nuclear reactor core, and for lifting and lowering a thimble plug assembly into the fuel assembly, including a vertically movable mast housing a mechanism which causes pivotally mounted fingers on the bottom of the mast to be moved into and out of latching engagement with the nozzle of a fuel assembly when the mast is resting on said assembly. The mast includes a second mechanism which supports second fingers pivotally mounted thereon and actuable by a third mechanism into and out of engagement with a thimble plug assembly suporting plugs adapted to be inserted in control rod guide thimbles in the fuel assembly. The second mechanism further includes an arrangement for lowering or raising the plug assembly respectively into or out of the guide thimbles in the fuel assembly. The apparatus includes control and interlock systems which preclude operation of the mechanisms under certain prescribed conditions.
摘要翻译： 用于将燃料组件升高和降低到核反应堆堆芯中并用于将套管塞组件提升和降低到燃料组件中的组合的燃料组件和套筒式插头夹持器，包括可垂直移动的桅杆，其容纳将所述枢转安装的手指放置在 当桅杆搁置在所述组件上时，桅杆的底部被移动进入和离开与燃料组件的喷嘴的闩锁接合。 桅杆包括第二机构，其支撑枢转地安装在其上并且由第三机构驱动的第二手指进入和离开与适于插入燃料组件中的控制杆导向套管中的套筒塞组件的套筒塞。 第二机构还包括用于将插头组件分别降低或升高到燃料组件中的导向套管中或者从其中移出的装置。 该装置包括控制和互锁系统，其排除在某些规定条件下机构的操作。
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公开(公告)号：US5225150A
公开(公告)日：1993-07-06
申请号：US903250
申请日：1992-06-23
摘要： A nuclear reactor such as a pressurized water reactor has an integrated head package providing structural support and increasing shielding leading toward the vessel head. A reactor vessel head engages the reactor vessel, and a control rod guide mechanism over the vessel head raises and lowers control rods in certain of the thimble tubes, traversing penetrations in the reactor vessel head, and being coupled to the control rods. An instrumentation tube structure includes instrumentation tubes with sensors movable into certain thimble tubes disposed in the fuel assemblies. Couplings for the sensors also traverse penetrations in the reactor vessel head. A shroud is attached over the reactor vessel head and encloses the control rod guide mechanism and at least a portion of the instrumentation tubes when retracted. The shroud forms a structural element of sufficient strength to support the vessel head, the control rod guide mechanism and the instrumentation tube structure, and includes radiation shielding material for limiting passage of radiation from retracted instrumentation tubes. The shroud is thicker at the bottom adjacent the vessel head, where the more irradiated lower ends of retracted sensors reside. The vessel head, shroud and contents thus can be removed from the reactor as a unit and rested safely and securely on a support.
摘要翻译： 诸如压水反应堆的核反应堆具有集成的头部包装件，其提供结构支撑并增加朝向容器头部的屏蔽。 反应堆容器头部接合反应器容器，并且在容器头上方的控制杆引导机构升高和降低某些套管中的控制杆，穿过反应堆容器头部中的穿透部分，并连接到控制棒上。 仪表管结构包括具有可移动到设置在燃料组件中的某些套管中的传感器的仪表管。 传感器的联轴器还穿过反应堆容器头部的穿透。 护罩安装在反应堆容器头部上，并且在收回时包围控制杆引导机构和仪器管的至少一部分。 护罩形成足够强度的结构元件以支撑血管头，控制杆引导机构和仪器管结构，并且包括用于限制来自缩回的仪表管的辐射通过的辐射屏蔽材料。 护罩在邻近血管头的底部较厚，其中缩回的传感器的较辐射的下端位于其上。 因此，容器头，护罩和内容物可以作为一个单元从反应器中移出并且安全且牢固地放置在支撑件上。
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公开(公告)号：US4913559A
公开(公告)日：1990-04-03
申请号：US320345
申请日：1989-03-08
CPC分类号： G21C3/334 , G21C19/00 , G21Y2002/202 , G21Y2002/204 , G21Y2002/40 , G21Y2002/501 , G21Y2004/40 , G21Y2004/502 , Y02E30/40
摘要： A straightening device (16) for bent fuel assembly alignment pins (12) in an upper core plate (10) comprises elongatged mast (22) haivng an upper and lower portion, bail (25) secured to the upper portion and cross member (28) secured to the lower portion. At one end of the cross member (28) is attached pin straightening assembly (19), the other end having counterweight (31) to assure a horizontal orientation of the cross member (28). Pin straightening assembly (19) is further comprised of housing (37) having wedge-shaped adjustable shim (61) connected to its top surface, the housing (37) secured to the cross member (28) by baseplate (34). Four axially compressible and laterally deformable compression springs (41) are connected between baseplate (34) and housing (37) to provide angular and translational compliance for housing (37). Housing (37) has two vertical holes disposed therein, first hole (50) adapted to receive hardened die insert (54) having bore (55 ) with frusto-conical opening (56) for receiving bent pin (12), and second hole (51) for receiving another pin (14). Connected to baseplate (34) opposite housing (37) is hydraulic ram (44) for moving housing (37) into full planar contact with bottom surface (47) of upper core plate (10) to effectuate the straightening of bent pin (12).
摘要翻译： 用于上芯板（10）中的弯曲燃料组件对准销（12）的矫直装置（16）包括伸长的桅杆（22），其具有上部和下部，固定到上部的支架（25）和横向构件（28） ）固定到下部。 在横向构件（28）的一端是连接销矫正组件（19），另一端具有配重（31）以确保横向构件（28）的水平定向。 销矫直组件（19）还包括具有连接到其顶表面的楔形可调节垫片（61）的壳体（37），壳体（37）通过基板（34）固定到横向构件（28）。 四个可轴向压缩和横向可变形的压缩弹簧（41）连接在基板（34）和壳体（37）之间，以提供壳体（37）的角度和平移顺应性。 壳体（37）具有设置在其中的两个垂直孔，第一孔（50）适于容纳具有孔（55）的硬化模插入件（54），其具有用于接收弯曲销（12）的截头圆锥形开口（56）和第二孔 51）用于接收另一个引脚（14）。 连接到与壳体（37）相对的基板（34）是用于使壳体（37）与上芯板（10）的底表面（47）完全平面接触的液压压头（44），以实现弯曲销（12）的矫直 。
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