公开(公告)号：US20150302941A1

公开(公告)日：2015-10-22

申请号：US14437673

申请日：2013-10-14

申请人： OPEN JOINT-STOCK COMPANY "TVEL" ,  OPEN JOINT-STOCK COMPANY "NOVOSIBIRSK CHEMICAL CONCENTRATES PLANT" ,  OPEN JOINT-STOCK COMPANY "AFRIKANTOV EXPERIMENTAL DESIGN BUREAU FOR MECHANICAL ENGINEERING"

发明人： Oleg Borisovich Samoilov ,  Aleksandr Ivanovich Romanov ,  Irina Evgenjevna Simanovskaya ,  Valentin Fedorovich Ershov ,  Anatoliy Alekseevich Enin ,  Mstislav Aleksandrovich Shustov ,  Andrey Aleksandrovich Tkachev ,  Aleksey Borisovich Dolgov

IPC分类号： G21C3/33

CPC分类号： G21C3/33 ,  G21C3/3305 ,  G21C3/3315 ,  G21C3/334 ,  Y02E30/40

摘要： The present disclosure provides for designs of fuel assemblies and may be used in pressurized water reactors. In some embodiments, a nuclear reactor fuel assembly may comprise a bundle of fuel rods, guide channels, two nozzles, one of which has a bearing plate with openings, elements for the detachable connection of the nozzles to the guide channels, a detachable connection locking device and a locking device fasteners, the elements for the detachable connection of the nozzles to the guide channels have a cross-section size greater than the size of the openings in the nozzle bearing plate. The present disclosure may provide greater ease in loading and unloading, reduce the time required for the mounting and removal of the nozzles during manufacture of the fuel assembly, and reduce the length of the reactor refueling process.

摘要翻译： 本公开提供了燃料组件的设计，并且可以在压水反应堆中使用。 在一些实施例中，核反应堆燃料组件可以包括一束燃料棒，引导通道，两个喷嘴，其中一个具有带开口的支承板，用于将喷嘴可拆卸地连接到引导通道的元件，可拆卸的连接锁定 装置和锁定装置紧固件，用于将喷嘴可拆卸地连接到引导通道的元件具有大于喷嘴支承板中的开口尺寸的横截面尺寸。 本公开可以提供更大的装载和卸载容易性，减少在制造燃料组件期间安装和移除喷嘴所需的时间，并且减少反应堆加油过程的长度。

公开(公告)号：US08675804B2

公开(公告)日：2014-03-18

申请号：US12968906

申请日：2010-12-15

申请人： Khaled M. Ewida

发明人： Khaled M. Ewida

IPC分类号： G21C7/32

CPC分类号： F15D1/025 ,  G21C3/322 ,  G21C3/3305 ,  Y02E30/31 ,  Y02E30/38 ,  Y10T137/8593

摘要： A flow limiter may include a head and a fin extending from a bottom of the head. The head may include a side surface having at least one first hole and the side surface may be symmetric about a first axis. The fin may include at least one second hole and the at least one second hole may have an axis substantially perpendicular to the first axis. The flow limiter may be inserted into a support casting that may interface with a nuclear fuel bundle to reduce the flow of water to the nuclear fuel bundle thereby reducing a moisture carry over (MCO) level at an exit of a fuel bundle of a nuclear reactor.

摘要翻译： 流量限制器可以包括从头部的底部延伸的头部和翅片。 头部可以包括具有至少一个第一孔的侧表面，并且侧表面可以围绕第一轴线对称。 翅片可以包括至少一个第二孔，并且所述至少一个第二孔可以具有基本上垂直于第一轴线的轴线。 流量限制器可以插入到可以与核燃料束接合的支撑铸件中，以减少向核燃料束的水流，从而减少在核反应堆的燃料束的出口处的水分携带（MCO）水平 。

公开(公告)号：US20140064428A1

公开(公告)日：2014-03-06

申请号：US13822516

申请日：2012-05-11

申请人： Dirk Blavius ,  Erhard Friedrich ,  Werner Meier

发明人： Dirk Blavius ,  Erhard Friedrich ,  Werner Meier

IPC分类号： G21C3/32

CPC分类号： G21C3/3206 ,  G21C3/322 ,  G21C3/3305 ,  Y02E30/40

摘要： A lower nozzle for use in a nuclear fuel assembly provided. The lower nozzle is of the type having an axis and comprising a transverse lower tie plate for channelling the coolant through the lower tie plate and a tubular skirt extending axially from the periphery of the lower tie plate, the skirt delimiting an axial housing closed at one end by the lower tie plate and open at the opposite end, a debris filter configured for axial insertion in the housing and snap-fit springs for retaining the debris filter in the housing after insertion. The springs are configured to shift the debris filter axially towards the lower tie plate.

摘要翻译： 用于核燃料组件的下喷嘴。 下喷嘴是具有轴线的类型，并且包括用于将冷却剂引导通过下连接板的横向下连接板和从下连接板的周边轴向延伸的管状裙部，裙部限定在一个闭合的轴向壳体 通过下连接板结束并在相对端开口，构造成用于轴向插入壳体中的碎屑过滤器和用于在插入之后将碎屑过滤器保持在壳体中的卡合弹簧。 弹簧构造成将碎屑过滤器轴向移向下连接板。

公开(公告)号：US08599995B2

公开(公告)日：2013-12-03

申请号：US13311215

申请日：2011-12-05

申请人： Michael S. DeFilippis

发明人： Michael S. DeFilippis

IPC分类号： G21C3/30 ,  G21C3/33

CPC分类号： G21C3/3305 ,  G21C3/322 ,  G21C3/3315 ,  G21C3/332 ,  Y02E30/38

摘要： Example embodiments are directed to tiered tie plates and fuel bundles that use tiered tie plates. Example embodiment tie plates may include upper and lower tiered tie plates. Example embodiment tiered tie plates may have a plurality of bosses divided into groups, or tiers, having differing vertical (axial) displacement. Example embodiment fuel bundles may use tiered tie plates such that fuel rods in example bundles may originate and terminate at different vertical displacements, based upon the vertical displacement of the bosses receiving the fuel rods into the tiered tie plates. Optionally, shanks may be used to further vary fuel rod axial displacement and diameter.

摘要翻译： 示例性实施例涉及使用分层连接板的分层连接板和燃料束。 示例性实施例的连接板可以包括上层和下层的连接板。 示例性实施例分层连接板可以具有分成具有不同垂直（轴向）位移的组或多个层的多个凸起。 示例性实施例燃料束可以使用分层连接板，使得基于将接收燃料棒的凸台垂直移位到分层连接板中的示例性束中的燃料棒可以以不同的垂直位移起始和终止。 可选地，可以使用柄来进一步改变燃料棒的轴向位移和直径。

公开(公告)号：US20130279642A1

公开(公告)日：2013-10-24

申请号：US13978686

申请日：2011-10-14

申请人： Wenchi Yu ,  Weicai Li ,  Yuemin Zhou ,  Xianfeng Lv ,  Yan Guo ,  Yuli Liu

发明人： Wenchi Yu ,  Weicai Li ,  Yuemin Zhou ,  Xianfeng Lv ,  Yan Guo ,  Yuli Liu

IPC分类号： G21C3/32 ,  B01D35/02

CPC分类号： G21C3/3206 ,  B01D29/03 ,  B01D35/02 ,  G21C3/322 ,  G21C3/3305 ,  Y02E30/38

摘要： The present invention provides a bottom nozzle filtering device and a debris-preventive bottom nozzle that can be used for a light water reactor (LWR) nuclear fuel assembly. The bottom nozzle filtering device includes a plurality of successively spliced unit plates; a through flow channel is formed between the spliced adjacent unit plates; the flow channel includes a plurality of spaced straight-section flow inlets and straight-section flow outlets, and a flow subchannel communicating; the outlet section of each straight-section flow inlet in the middle splits respectively into two flow subchannels, and the inlet section of each straight-section flow outlet in the middle communicates respectively with the two flow subchannels. The flow direction of the coolant is controlled by the straight-section flow inlet, the straight-section flow outlet, the flow subchannel to prevent unnecessary eddies forming, making the pressure loss effectively controlled and improving the filtering effect.

摘要翻译： 本发明提供了可用于轻水反应堆（LWR）核燃料组件的底部喷嘴过滤装置和防碎底部喷嘴。 底部喷嘴过滤装置包括多个连续拼接的单元板; 在接合的相邻单元板之间形成通流通道; 流动通道包括多个间隔开的直线部分流入口和直流部分流出口，以及流动通道。 中间的每个直段流入口的出口部分别分成两个流通道，中间的每个直段流出口的入口部分分别与两个流动通道连通。 冷却液的流动方向由直流流入口，直流流出口，流动通道进行控制，防止不必要的涡流成形，有效控制压力损失，提高过滤效果。

公开(公告)号：US20120155600A1

公开(公告)日：2012-06-21

申请号：US12968826

申请日：2010-12-15

申请人： Khaled M. Ewida ,  Gerald A. Luciano ,  Milton H. Loper, III

发明人： Khaled M. Ewida ,  Gerald A. Luciano ,  Milton H. Loper, III

IPC分类号： G21C19/28

CPC分类号： G21C3/322 ,  E04H4/00 ,  E04H5/00 ,  G21C3/3305 ,  Y02E30/38

摘要： A fuel bundle flow limiter according to a non-limiting embodiment of the present invention may include a plurality of base sections, wherein each of the plurality of base sections has at least one opening. A plurality of channels may separate the plurality of base sections. A plurality of vertical webs may extend from the plurality of base sections. A locking tab may be disposed in at least one of the plurality of vertical webs. By using the flow limiter, the moisture carry over (MCO) level at the exit of the fuel bundle may be decreased, thereby reducing radiation exposure to plant operators and reducing damage to reactor equipment.

摘要翻译： 根据本发明的非限制性实施例的燃料束流量限制器可以包括多个基部，其中多个基部中的每一个具有至少一个开口。 多个通道可以分离多个基部。 多个垂直腹板可以从多个基部部分延伸。 锁定突舌可以设置在多个垂直腹板中的至少一个中。 通过使用流量限制器，可能会降低燃料束出口处的湿度（MCO）水平，从而减少对工厂操作人员的辐射照射，并减少反应堆设备的损坏。

公开(公告)号：US20100172460A1

公开(公告)日：2010-07-08

申请号：US12421829

申请日：2009-04-10

申请人： Kyung-Ho Yoon ,  Hyung-Kyu Kim ,  Jae-Yong Kim ,  Young-Ho Lee ,  Kang-Hee Lee ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang Hwan Shin ,  Kun-Woo Song

发明人： Kyung-Ho Yoon ,  Hyung-Kyu Kim ,  Jae-Yong Kim ,  Young-Ho Lee ,  Kang-Hee Lee ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang Hwan Shin ,  Kun-Woo Song

IPC分类号： G21C3/34

CPC分类号： G21C3/322 ,  G21C3/3305 ,  G21C3/3315 ,  Y02E30/38

摘要： A perforated plate support supports dual-cooled fuel rods, each of which has concentric outer and inner tubes and is coupled with upper and lower end plugs at upper and lower ends thereof, and guide thimbles, each of which is used as a passage for a control rod. The perforated plate support is formed as a support plate having the shape of a flat plate, which includes internal channel holes, each of which has a diameter corresponding to an outer diameter of the inner tube, guide thimble holes, each of which has a diameter corresponding to an outer diameter of the guide thimble, and sub-channel holes around each internal channel hole. The upper or lower end of the dual-cooled fuel rod is coupled to the support plate such that the outer diameter of the inner tube is matched with the diameter of the internal channel hole.

摘要翻译： 多孔板支撑件支撑双重冷却的燃料棒，每个燃料棒具有同心的外管和内管，并且在其上端和下端与上端和下端塞连接，导向套管每一个用作通道 控制棒。 多孔板支撑件形成为具有平板形状的支撑板，该支撑板包括内部通道孔，每个内部通道孔的直径对应于内部管的外径，导向套管孔各自具有直径 对应于导向套管的外径，以及在每个内部通道孔周围的子通道孔。 双冷却燃料棒的上端或下端与支撑板相连，使得内管的外径与内通道孔的直径相匹配。

公开(公告)号：US20100034337A1

公开(公告)日：2010-02-11

申请号：US12448225

申请日：2007-12-05

申请人： Michel Verdier ,  Eric Labarriere

发明人： Michel Verdier ,  Eric Labarriere

IPC分类号： G21C3/34

CPC分类号： G21C3/322 ,  G21C3/3206 ,  G21C3/3305 ,  Y02E30/38

摘要： This bottom end-piece includes nozzles for directing the flow of water of the reactor along the lower ends of the fuel rods, the nozzles being arranged at nodes of the substantially regular network of the fuel rods, and an anti-debris device which delimits water flow channels. At least some of the water flow channels are arranged at nodes of the substantially regular network. Direction nozzles are arranged at least partially in the channels in order to delimit water passages therewith, and at least one water passage includes a first section and a second section which are mutually offset radially relative to the corresponding node of the network in order to form a baffle.

摘要翻译： 该底端件包括用于沿着燃料棒的下端引导反应器的水流的喷嘴，喷嘴布置在燃料棒的基本规则的网络的节点处，以及限定水的防碎屑装置 流通道。 至少一些水流通道被布置在基本上规则的网络的节点处。 方向喷嘴至少部分地布置在通道中以便限定水通道，并且至少一个水通道包括第一部分和第二部分，第一部分和第二部分相对于网络的相应节点相对于径向相互偏移，以形成 挡板

公开(公告)号：US20070189433A1

公开(公告)日：2007-08-16

申请号：US10583897

申请日：2004-12-07

申请人： Jean-Luc Chambrin ,  Angelo Beati ,  Guy Gentet

发明人： Jean-Luc Chambrin ,  Angelo Beati ,  Guy Gentet

IPC分类号： G21C17/00

CPC分类号： G21C3/3305 ,  G21C3/3315 ,  G21C5/06 ,  G21Y2002/301 ,  G21Y2002/304 ,  G21Y2004/30 ,  G21Y2004/40 ,  Y02E30/40

摘要： A resilient bush for frictionally engaging a centering pin of the fuel assembly is fixed in each of the through-holes of at least one of the end-pieces of the fuel assembly. The resilient bush comprises an annular member which has a portion for fixing in the hole of the end-piece and resilient arms which are separated by apertures. The flexible arms of the resilient bush comprise, in a free end portion, a supporting surface which projects radially inside the bush whose diameter is smaller than the diameter of a centering pin of the fuel assembly.

摘要翻译： 用于摩擦地接合燃料组件的定心销的弹性衬套固定在燃料组件的至少一个端部件的每个通孔中。 弹性衬套包括环形构件，其具有用于固定在端件的孔中的部分和由孔分开的弹性臂。 弹性衬套的柔性臂在自由端部中包括支撑表面，该支撑表面径向地突出在衬套内，其直径小于燃料组件的定心销的直径。

公开(公告)号：US20070165767A1

公开(公告)日：2007-07-19

申请号：US10584168

申请日：2004-12-17

申请人： Eric Labarriere ,  Angelo Beati ,  Michel Bonnamour

发明人： Eric Labarriere ,  Angelo Beati ,  Michel Bonnamour

IPC分类号： G21C3/32

CPC分类号： G21C3/3305 ,  G21C3/322 ,  G21Y2002/101 ,  G21Y2004/301 ,  Y02E30/38

摘要： A terminal end-piece for a fuel assembly of a pressurized water nuclear reactor, the assembly having fuel rods and a skeleton for supporting the fuel rods, the fuel rods extending in a longitudinal direction and being arranged at the nodes of a substantially regular network, the support skeleton comprising two terminal end-pieces and guide tubes that connect the terminal end-pieces, the fuel rods being arranged longitudinally between the terminal end-pieces, characterized in that the end-piece comprises noses for orientating the flow of a coolant fluid of the reactor along the adjacent longitudinal ends of the fuel rods, the noses being arranged in nodes of the substantially regular network in order to be positioned in a longitudinal continuation of at least some of the fuel rods and/or at least some of the guide tubes of the support skeleton.

摘要翻译： 一种用于加压水核反应堆的燃料组件的终端件，所述组件具有燃料棒和用于支撑燃料棒的骨架，所述燃料棒沿纵向方向延伸并且布置在基本上规则的网络的节点处， 所述支撑骨架包括连接所述末端部件的两个终端件和引导管，所述燃料棒在所述末端件之间纵向布置，其特征在于，所述端件包括用于使冷却剂流体的流动 的反应器沿着燃料棒的相邻纵向端部，鼻部布置在基本上规则的网络的节点中，以便被定位成至少一些燃料棒和/或至少一些引导件的纵向延伸 管支架骨架。