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公开(公告)号：US20150298266A1
公开(公告)日：2015-10-22
申请号：US14257134
申请日：2014-04-21
申请人： AREVA Inc.
发明人： Charles A. Graves , David E. Waskey
CPC分类号： B23P6/00 , B23K31/02 , B23K2101/12 , G21C13/036 , G21C17/017 , G21C19/207
摘要： This invention provides an improved replacement nozzle configuration. The nozzle is provided in two pieces. A first nozzle piece is a relatively thin-walled cylinder that is inserted into the counterbored opening of a pressure vessel after the protruding portion of the original nozzle has been removed. A weld pad is attached to the pressure vessel, to which the first replacement nozzle piece is welded. Due to the reduced dimensions of the thin-walled first nozzle portion, a much smaller weld pad and pad-to-nozzle weld can be used. A second nozzle piece is positioned within the first nozzle piece and welded thereto. The existing instrumentation piping is connected to the free end of the second nozzle piece. This two-piece replacement nozzle can be implemented in approximately half the time required for the one-piece design.
摘要翻译： 本发明提供了一种改进的替代喷嘴结构。 喷嘴设置成两片。 第一喷嘴片是相对薄壁的圆柱体，其在原始喷嘴的突出部分已经被移除之后被插入压力容器的沉孔中。 焊接垫连接到压力容器上，第一个更换喷嘴件被焊接到该压力容器上。 由于薄壁第一喷嘴部分的尺寸减小，可以使用更小的焊盘和焊盘与喷嘴焊接。 第二喷嘴片位于第一喷嘴片内并焊接在其上。 现有的仪表管道连接到第二喷嘴件的自由端。 这种两件式更换喷嘴可以在一体式设计所需的时间的大约一半的时间内实现。
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公开(公告)号：US20150107915A1
公开(公告)日：2015-04-23
申请号：US14519169
申请日：2014-10-21
申请人： AREVA Inc.
IPC分类号： B62D57/032
CPC分类号： B62D57/032 , B62D57/024 , Y10S901/01 , Y10S901/44 , Y10S901/46 , Y10S901/47
摘要： A low profile stepper robot is described and claimed herein. The robot includes a plurality of foot assemblies. Each foot assembly includes a suction cup, a vacuum generator, and a valve, with the vacuum generator being operationally connected to the suction cup. A conduit connects a source of operational fluid flow to the vacuum generators, and the valves allow or prevent fluid flow to the vacuum generators. Actuators are positioned between the foot assemblies and the robot base. The actuators provide for linear and rotational displacement of the foot assemblies, allowing the robot to walk and turn along an inspection surface.
摘要翻译： 本文描述和要求了一种低调的步进机器人。 机器人包括多个脚组件。 每个脚组件包括吸盘，真空发生器和阀，其中真空发生器可操作地连接到吸盘。 导管将工作流体源的源连接到真空发生器，并且阀允许或防止流体流向真空发生器。 致动器位于脚组件和机器人底座之间。 致动器提供脚组件的线性和旋转位移，允许机器人沿着检查表面行走和转动。
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公开(公告)号：US20140376680A1
公开(公告)日：2014-12-25
申请号：US14294367
申请日：2014-06-03
申请人： AREVA Inc.
发明人： Dilip K. Rao
CPC分类号： F16K17/383 , G21C9/016 , G21C13/10 , Y02E30/40 , Y10T137/1812
摘要： The present invention provides a drain plug assembly that prevents significant quantities of corium from entering the drain line. By protecting the drain line, essentially no high-activity fission products would be released to the reactor building or the environment during a severe accident. The ceramic drain plug assembly includes a drain plug base and a drain plug supported by a steel pedestal. The lower surface of the plug has a spherical shape such that the plug can be positioned within the base to block access to the drain opening provided in a central portion of the base. During normal operation conditions, the plug is retained above the base by the pedestal. During a severe accident, when corium comes into contact with the pedestal, it will melt rapidly and the drain plug will drop by gravity, effectively closing the sump drain opening and preventing the flow of corium into the drain line.
摘要翻译： 本发明提供一种排水塞组件，其防止大量的corium进入排水管线。 通过保护排水管线，在严重事故期间基本上不会将高活性裂变产物释放到反应堆建筑物或环境中。 陶瓷排水塞组件包括一个排水塞基座和一个由钢基座支撑的排水塞。 插塞的下表面具有球形形状，使得插头可以定位在基座内以阻止接近设置在基座的中心部分中的排水开口。 在正常操作条件下，插头被基座保持在基座的上方。 严重事故发生时，当与基座接触时，会迅速融化，排水塞会因重力而下降，有效关闭集油槽排水口，防止污水进入排水管。
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24.发明授权公开(公告)号：US10062460B2
公开(公告)日：2018-08-28
申请号：US14554517
申请日：2014-11-26
申请人： AREVA Inc.
IPC分类号： G21C19/00 , C21D7/04 , G21C19/20 , G21C17/022
CPC分类号： G21C19/00 , C21D7/04 , G21C17/0225 , G21C19/207
摘要： A sealing member is provided to create a sealed region about an annulus formed between an inner body, such as a thermal sleeve, and an outer body, such as a control rod drive housing nozzle. Liquid is introduced into the sealed region to create a flooded region, which is pressurized to a desired level. A nozzle is provided into the flooded region, the nozzle being configured to fit within the annulus. Pressurized fluid is ejected from the nozzle, causing the formation of cavitation bubbles. The nozzle flow causes the cavitation bubbles to settle on the surfaces forming the annulus. The collapsing impact of the cavitation bubbles imparts compressive stress in the materials of the surfaces forming the annulus.
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公开(公告)号：US10020078B2
公开(公告)日：2018-07-10
申请号：US14250270
申请日：2014-04-10
申请人： AREVA Inc.
发明人： Mihai G. M. Pop
CPC分类号： G21C3/07 , B32B18/00 , C04B2235/5244 , C04B2237/365 , C04B2237/38 , Y02E30/40
摘要： A fuel rod for a nuclear fission reactor is disclosed and claimed. The fuel rod includes an elongate hollow cladding configured to retain a nuclear fuel therein. The cladding includes an elongate hollow tube. Fiber layers are positioned around the outside surface of the tube or within the tube forming an integral part thereof. Both the tube and the fibers are formed of a ceramic material. A fuel assembly including a plurality of such fuel rods is also disclosed and claimed.
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公开(公告)号：US09728287B2
公开(公告)日：2017-08-08
申请号：US14874219
申请日：2015-10-02
申请人： AREVA Inc.
发明人： Leo Paul Lessard , Adam Mancini , Richard James Furr , Matthieu P. Lucas , Donald R. LeFrancois
摘要： A method of decommissioning a nuclear reactor including a vessel defining an inner chamber and reactor internal components positioned within the inner chamber includes removing at least some of the internal components and repackaging at least some of the removed internal components in at least one of the first and second predefined sections of the vessel defining a cutting zone between the at least first and second predefined sections. The method further includes disposing the vessel in a container, and encapsulating the internal components in the vessel and encapsulating the vessel in the container to generate a package. A package including components from a decommissioned and dismantled nuclear reactor includes a vessel and a plurality of components encapsulated in the vessel.
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公开(公告)号：US20170152105A1
公开(公告)日：2017-06-01
申请号：US15365327
申请日：2016-11-30
摘要： A horizontal storage module (HSM) includes a body defining a plurality of compartments configured for receiving canisters, wherein the compartments are arranged in a first row at a first elevation and a second row at a second elevation higher than the first elevation, and wherein at least a portion of one compartment in the first row is in the same horizontal axis location as at least a portion of one compartment in the second row. A method of manufacturing the HSM includes positioning adjacent segments. A carriage assembly for the HSM includes a frame and an actuation means for lifting a cask containing a canister. A method of lifting includes receiving a cask and lifting a cask for delivery of the canister to the HSM.
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28.发明申请Control Rod Drive Mechanism Outer Diameter Seal Ultra High Pressure Cavitation Peening 审中-公开控制杆驱动机构外径密封超高压气蚀喷丸公开(公告)号：US20160358681A1
公开(公告)日：2016-12-08
申请号：US14554525
申请日：2014-11-26
申请人： AREVA Inc.
CPC分类号： G21C19/00 , C21D7/06 , C21D10/00 , G21Y2002/103
摘要： A sealing device is provided to form a sealed region about one or more surfaces to be treated. The sealing device has an open end with a rim configured to matingly engage a treatment surface. The sealing device is braced both vertically and laterally, and the sealed region is flooded and pressurized. A peening nozzle and manipulating tooling are positioned within an interior volume of the sealing device. Pressurized fluid is ejected from the nozzle causing the formation of cavitation bubbles. The nozzle flow causes the cavitation bubbles to settle on the surfaces to be treated. The collapsing impact of the cavitation bubbles imparts compressive stress in the materials of the treatment surfaces.
摘要翻译： 提供密封装置以形成围绕要被处理的一个或多个表面的密封区域。 密封装置具有开口端，其具有被配置成配合地接合治疗表面的边缘。 密封装置垂直和横向地支撑，并且密封区域被淹没和加压。 锤击喷嘴和操纵工具位于密封装置的内部容积内。 加压流体从喷嘴喷出，形成气泡。 喷嘴流动导致空化气泡沉降在待处理的表面上。 空化气泡的塌陷影响在处理表面的材料中产生压应力。
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公开(公告)号：US09180557B1
公开(公告)日：2015-11-10
申请号：US14257134
申请日：2014-04-21
申请人： AREVA Inc.
发明人： Charles A. Graves , David E. Waskey
CPC分类号： B23P6/00 , B23K31/02 , B23K2101/12 , G21C13/036 , G21C17/017 , G21C19/207
摘要： This invention provides an improved replacement nozzle configuration. The nozzle is provided in two pieces. A first nozzle piece is a relatively thin-walled cylinder that is inserted into the counterbored opening of a pressure vessel after the protruding portion of the original nozzle has been removed. A weld pad is attached to the pressure vessel, to which the first replacement nozzle piece is welded. Due to the reduced dimensions of the thin-walled first nozzle portion, a much smaller weld pad and pad-to-nozzle weld can be used. A second nozzle piece is positioned within the first nozzle piece and welded thereto. The existing instrumentation piping is connected to the free end of the second nozzle piece. This two-piece replacement nozzle can be implemented in approximately half the time required for the one-piece design.
摘要翻译： 本发明提供了一种改进的替代喷嘴结构。 喷嘴设置成两片。 第一喷嘴片是相对薄壁的圆柱体，其在原始喷嘴的突出部分已经被移除之后被插入压力容器的沉孔中。 焊接垫连接到压力容器上，第一个更换喷嘴件被焊接在该压力容器上。 由于薄壁第一喷嘴部分的尺寸减小，可以使用更小的焊盘和焊盘与喷嘴焊接。 第二喷嘴片位于第一喷嘴片内并焊接在其上。 现有的仪表管道连接到第二喷嘴件的自由端。 这种两件式更换喷嘴可以在一体式设计所需的时间的大约一半的时间内实现。
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公开(公告)号：US20150159790A1
公开(公告)日：2015-06-11
申请号：US14559626
申请日：2014-12-03
申请人： AREVA Inc.
发明人： Kenneth Wade Markham
IPC分类号： F16L21/06
CPC分类号： F16L21/06 , F16L3/1075 , Y10T29/49954
摘要： A seal collar is disclosed and claimed. The seal is provided in two hinged parts that wrap around the piping to be sealed. The seal halves are connected to form a loop. The seal components may be formed of a shape memory alloy. Once the seal is properly positioned about the pipe, heat is applied to shrink the seal to provide a tight, sealing fit about the pipe. Alternatively, the clamp is formed of stainless steel and a bolt is used to secure the clamp halves to the mixer assembly.
摘要翻译： 公开并要求保护密封件。 密封件设置在两个铰接部件中，围绕待密封的管道。 密封半部连接形成环。 密封部件可以由形状记忆合金形成。 一旦密封件围绕管道正确定位，则施加热量以收缩密封件以在管道周围提供紧密的密封配合。 或者，夹具由不锈钢形成，并且使用螺栓将夹具半部固定到混合器组件。
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