公开(公告)号：WO2013165488A1

公开(公告)日：2013-11-07

申请号：PCT/US2013/022666

申请日：2013-01-23

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC.

Inventor： WALTON, Lewis, A. ,  PABIS, George, S. ,  DOAN, Andrew, W. ,  HATMAKER, James, G.

IPC: G21C3/34 ,  G21C3/352

CPC classification number: G21C3/352 ,  G21C3/356 ,  G21C3/3563 ,  Y02E30/40

Abstract: A spacer grid includes interlocked straps comprising metal sheets or plates welded together to define a spacer grid having a top and bottom. The interlocked straps define a plurality of cells comprising vertical passages connecting the top and bottom of the spacer grid. The cells include: upper dimples proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; lower dimples proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid; cantilevered upper springs having fuel rod engagement surfaces proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid; and cantilevered lower springs having fuel rod engagement surfaces proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid.

Abstract translation: 间隔网格包括互锁带，其包括焊接在一起的金属板或板，以限定具有顶部和底部的间隔栅格。 互锁带限定多个单元，其包括连接间隔栅格的顶部和底部的垂直通道。 电池包括：靠近隔离栅格顶部并远离间隔栅格的中间平面的上部凹坑; 靠近隔离栅格底部并远离间隔栅格的中间平面的较小凹坑; 悬臂式上弹簧具有靠近间隔栅格顶部并且远离间隔栅格的中间平面的燃料棒接合表面; 以及悬臂式下弹簧，其具有靠近间隔栅格底部并且远离间隔栅格的中间平面的燃料棒接合表面。

公开(公告)号：WO2013095741A2

公开(公告)日：2013-06-27

申请号：PCT/US2012/057791

申请日：2012-09-28

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  BABCOCK & WILCOX CANADA LTD.

Inventor： SHARGOTS, Scott, J. ,  ALES, Matthew, W ,  EDWARDS, Michael, J. ,  WHITTEN, Andrew, C. ,  LI, Yuanming, R ,  MILLMAN, Jeffrey, C ,  MCGILLIVRAY, Roy

IPC: G21C15/00 ,  G21C15/18

CPC classification number: G21C15/18 ,  F04D3/005 ,  F04D7/08 ,  F04D29/548 ,  F04D29/605 ,  G21C1/086 ,  G21C1/322 ,  G21C13/02 ,  G21C15/00 ,  G21C15/243 ,  Y02E30/32

Abstract: A pressurized water reactor (PWR) comprises: a nuclear core comprising a fissile material; a cylindrical pressure vessel having a vertically oriented cylinder axis and containing the nuclear core immersed in primary coolant water; and a hollow cylindrical central riser disposed concentrically with and inside the cylindrical pressure vessel. A downcomer annulus is defined between the hollow cylindrical central riser and the cylindrical pressure vessel. The hollow cylindrical central riser has a radially expanding upper orifice that merges into an annular divider plate that separates an upper plenum above the annular divider plate from a lower plenum below the annular divider plate. The upper plenum is in fluid communication with the radially expanding upper orifice and the lower plenum is in fluid communication with the downcomer annulus. A weir may extend away from a bottom wall of the lower plenum into the lower plenum. An emergency core cooling system (ECCS) return line nozzle may be arranged to inject water into the upper plenum. A pump support plate spans the inner diameter of the cylindrical pressure vessel and forms a portion of the pressure boundary of the cylindrical pressure vessel, and reactor coolant pumps (RCPs) are supported by the pump support plate. Alternatively, reactor coolant pumps (RCPs) are supported by an arcuate annular ledge formed in the upper portion of the cylindrical pressure vessel.

Abstract translation: 压水反应堆（PWR）包括：包含裂变材料的核芯; 圆柱形压力容器具有垂直取向的圆柱轴线并且包含浸入一次冷却水中的核芯; 以及与圆柱形压力容器同心地设置的中空圆柱形中心提升器。 在中空圆柱形中央提升管和圆柱形压力容器之间限定降液管环。 中空的圆柱形中央提升管具有径向扩张的上部孔口，其合并成环形分隔板，其将环形分隔板上方的上部增压室与环形分隔板下方的下部增压室分隔开。 上部气室与径向膨胀的上部孔口流体连通，下部气室与降液管环流体连通。 堰可以从下部通风室的底壁延伸到下部增压室中。 可以安排应急芯冷却系统（ECCS）返回管线喷嘴将水注入上部通风室。 泵支撑板跨过圆柱形压力容器的内径并形成圆柱形压力容器的压力边界的一部分，反应堆冷却剂泵（RCP）由泵支撑板支撑。 或者，反应堆冷却剂泵（RCP）由形成在圆柱形压力容器的上部中的弧形环形凸缘支撑。

公开(公告)号：WO2012142021A1

公开(公告)日：2012-10-18

申请号：PCT/US2012/032872

申请日：2012-04-10

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC.

Inventor： MALLOY, John, D. ,  EDWARDS, Michael, J.

IPC: G21C13/00

CPC classification number: G21C7/12 ,  G21C1/326 ,  G21C13/02 ,  G21C15/00 ,  G21D1/006 ,  Y02E30/32 ,  Y02E30/39

Abstract: A pressurized water reactor (PWR) includes a cylindrical pressure vessel defining a sealed volume, a nuclear reactor core disposed in a lower portion of the cylindrical pressure vessel, one or more control rod drive mechanisms (CRDMs) disposed in the cylindrical pressure vessel above the nuclear reactor core, and an annular steam generator surrounding the nuclear reactor core and the CRDM. In some such PWR, a cylindrical riser is disposed coaxially inside the pressure vessel and inside the annular steam generator and surrounds the nuclear reactor core and the CRDM, and the steam generator is disposed coaxially inside the cylindrical pressure vessel in an annular volume defined by the cylindrical pressure vessel and the cylindrical riser. In other such PWR, the steam generator is disposed coaxially outside of and secured with the cylindrical pressure vessel.

Abstract translation: 压水反应堆（PWR）包括限定密封体积的圆柱形压力容器，设置在圆柱形压力容器下部的核反应堆芯，设置在圆柱形压力容器上方的一个或多个控制棒驱动机构（CRDM） 核反应堆堆芯和围绕核反应堆核心和CRDM的环形蒸汽发生器。 在一些此类PWR中，圆柱形立管同轴地设置在压力容器内并在环形蒸汽发生器的内部并且围绕核反应堆堆芯和CRDM，并且蒸汽发生器同轴地设置在圆柱形压力容器内的环形容积中， 圆柱形压力容器和圆柱形立管。 在其他这样的PWR中，蒸汽发生器同轴地设置在圆筒形压力容器的外部并被固定。

公开(公告)号：WO2012047473A1

公开(公告)日：2012-04-12

申请号：PCT/US2011/051686

申请日：2011-09-15

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  BABCOCK & WILCOX NUCLEAR OPERATIONS GROUP, INC. ,  SHARGOTS, Scott, J. ,  DESANTIS, Paul, K. ,  MCLAUGHLIN, John, P. ,  ALES, Mathew, W.

Inventor： SHARGOTS, Scott, J. ,  DESANTIS, Paul, K. ,  MCLAUGHLIN, John, P. ,  ALES, Mathew, W.

IPC: G21C7/36

CPC classification number: G21C7/14 ,  G21C7/10 ,  G21C7/117 ,  G21C7/12 ,  G21C7/20 ,  G21Y2002/30 ,  G21Y2002/302 ,  G21Y2004/30 ,  Y02E30/39

Abstract: A nuclear reactor includes a pressure vessel, and a control rod assembly including at least one movable control rod comprising a neutron absorbing material, a control rod drive mechanism (CRDM) for controlling movement of the at least one control rod, and a coupling operatively connecting the at least one control rod and the CRDM. The coupling includes a first portion comprising a first material having a first density at room temperature, and a second portion comprising a second material having a second density at room temperature that is greater than the first density. In some embodiments the coupling includes a connecting rod including a hollow or partially hollow connecting rod tube comprising a first material having a first density and a filler disposed in the hollow or partially hollow connecting rod tube, the filler comprising a second material having a second density greater than the first density.

Abstract translation: 核反应堆包括压力容器和包括至少一个包括中子吸收材料的可移动控制棒的控制杆组件，用于控制至少一个控制棒的运动的控制棒驱动机构（CRDM）和可操作地连接 所述至少一个控制杆和所述CRDM。 联接器包括第一部分，其包括在室温下具有第一密度的第一材料，第二部分包括在室温下具有大于第一密度的第二密度的第二材料。 在一些实施例中，联接器包括连杆，该连杆包括中空或部分中空的连杆管，其包括具有第一密度的第一材料和设置在中空或部分中空的连杆管中的填料，填料包括具有第二密度 大于第一密度。

公开(公告)号：WO2014151002A1

公开(公告)日：2014-09-25

申请号：PCT/US2014/024741

申请日：2014-03-12

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC.

Inventor： HUNDSTAD, Richard ,  PERSAD, Rajendra ,  BRUNS, Nathaniel ,  GAMMAGE, Daniel

IPC: G01B9/00 ,  G01B11/28 ,  G01B11/30

CPC classification number: G01B11/026 ,  F22B37/003 ,  G01B11/2518 ,  G01N21/8806 ,  G01N21/8851

Abstract: A component, such as a cyclonic steam separator baseplate of a steam generator, includes a surface subject to degradation during operation of the system in which the component is disposed. A profile is acquired of the surface of the component using an optical surface profilometry system concurrent with an image of the surface. A condition, such as degradation of the component is classified based on the acquired profile and image of the surface of the component. Component conditions may be monitored over time, trended, and classified as requiring maintenance, repair, or replacement.

Abstract translation: 诸如蒸汽发生器的旋风蒸汽分离器基板的部件包括在其中布置部件的系统的操作期间遭受劣化的表面。 使用与表面的图像同时的光学表面轮廓测量系统获取部件的表面的轮廓。 基于所获得的轮廓和部件表面的图像来分类诸如部件的劣化的条件。 组件条件可能会随着时间的推移，趋势变化和分类进行监控，因为需要维护，修理或更换。

公开(公告)号：WO2013162661A1

公开(公告)日：2013-10-31

申请号：PCT/US2013/023535

申请日：2013-01-29

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC.

Inventor： SHARGOTS, Scott, J.

IPC: G21C7/12 ,  G21C7/14 ,  G21C7/16

CPC classification number: G21C7/16 ,  G21C1/32 ,  Y02E30/32 ,  Y02E30/39 ,  Y10T29/49169

Abstract: A standoff supporting a control rod drive mechanism (CRDM) in a nuclear reactor is connected to a distribution plate which provides electrical power and hydraulics. The standoff has connectors that require no action to effectuate the electrical connection to the distribution plate other than placement of the standoff onto the distribution plate. This facilitates replacement of the CRDM. In addition to the connectors, the standoff has alignment features to ensure the CRDM is connected in the correct orientation. After placement, the standoff may be secured to the distribution plate by bolts or other fasteners. The distribution plate may be a single plate that contains the electrical and hydraulic lines and also is strong enough to provide support to the CRDMs or may comprise a stack of two or more plates.

Abstract translation: 支撑核反应堆中的控制杆驱动机构（CRDM）的支架连接到提供电力和液压的分配板。 支座具有连接器，除了将支座放置在配电盘上之外，不需要动作来实现与配电板的电连接。 这有助于更换CRDM。 除了连接器之外，支架具有对准功能，以确保CRDM以正确的方向连接。 放置后，间隙可以通过螺栓或其他紧固件固定到分配板。 分配板可以是包含电气和液压管线的单个板，并且还足够强以提供对CRDM的支撑，或者可以包括两个或更多个板的堆叠。

公开(公告)号：WO2012158949A1

公开(公告)日：2012-11-22

申请号：PCT/US2012/038401

申请日：2012-05-17

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  SHARGOTS, Scott, J.

Inventor： SHARGOTS, Scott, J.

IPC: G21C19/28

CPC classification number: F04D7/08 ,  F04D29/606 ,  G21C1/086 ,  G21C1/32 ,  G21C15/243 ,  G21C19/207 ,  G21C19/28 ,  G21D1/006 ,  Y02E30/32 ,  Y10T29/49229

Abstract: A pressurized water reactor (PWR) includes a vertical cylindrical pressure vessel having a lower portion containing a nuclear reactor core and a vessel head defining an internal pressurizer. A reactor coolant pump (RCP) mounted on the vessel head includes an impeller inside the pressure vessel, a pump motor outside the pressure vessel, and a vertical drive shaft connecting the motor and impeller. The drive shaft does not pass through the internal pressurizer. A central riser may be disposed concentrically inside the pressure vessel, and the RCP impels primary coolant downward into a downcomer annulus between the central riser and the pressure vessel. A steam generator may be disposed in the downcomer annulus and spaced apart from with the impeller by an outlet plenum. A manway may access the outlet plenum so tube plugging can be performed on the steam generator via access through the manway without removing the RCP.

Abstract translation: 压水反应堆（PWR）包括垂直圆柱形压力容器，其具有包含核反应堆芯的下部和限定内部加压器的容器头。 安装在容器头上的反应堆冷却剂泵（RCP）包括压力容器内的叶轮，压力容器外部的泵马达和连接马达和叶轮的垂直驱动轴。 驱动轴不通过内部加压器。 中心提升管可以同心地设置在压力容器内，并且RCP将主冷却剂向下推入中央提升管和压力容器之间的降液管环形空间。 蒸汽发生器可以设置在降液管环中并且通过出口增压室与叶轮间隔开。 通风道可以进入出风口，因此可以在蒸汽发生器上通过通道进行管堵塞，而不需要拆卸RCP。

公开(公告)号：WO2012158929A2

公开(公告)日：2012-11-22

申请号：PCT/US2012/038367

申请日：2012-06-04

Applicant: BABCOCK & WILCOX CANADA LTD. ,  BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  STEINMOELLER, Franz E. ,  IDVORIAN, Nick ,  LI, Yuanming R. ,  EDWARDS, Michael J.

Inventor： STEINMOELLER, Franz E. ,  IDVORIAN, Nick ,  LI, Yuanming R. ,  EDWARDS, Michael J.

IPC: G21C15/02

CPC classification number: G21C13/02 ,  G21C1/086 ,  G21C1/09 ,  G21C1/32 ,  Y02E30/40

Abstract: A pressurized water reactor (PWR) includes a pressure vessel and a nuclear reactor core disposed in the pressure vessel. A baffle plate is disposed in the pressure vessel and separates the pressure vessel into an internal pressurizer volume disposed above the baffle plate and an operational PWR volume disposed below the baffle plate. The baffle plate comprises first and second spaced apart plates, and includes a pressure transfer passage having a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level below an operational pressurizer liquid level range. A vent pipe has a lower end in fluid communication with the operational PWR volume and an upper end in fluid communication with the internal pressurizer volume at a level above the operational pressurizer liquid level range.

Abstract translation: 压力水反应堆（PWR）包括设置在压力容器中的压力容器和核反应堆堆芯。 挡板设置在压力容器中并将压力容器分离成设置在挡板上方的内部加压器体积和设置在挡板下方的操作PWR体积。 挡板包括第一和第二间隔开的板，并且包括压力传递通道，其具有与操作PWR体积流体连通的下端和与内部加压器体积流动连通的上端，其水平低于操作加压器液位 范围。 排气管具有与操作PWR体积流体连通的下端，并且与内部加压器体积流体连通的上端处于高于操作加压器液位范围的水平。

公开(公告)号：WO2012109264A2

公开(公告)日：2012-08-16

申请号：PCT/US2012/024170

申请日：2012-02-07

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  NOEL, James, L.

Inventor： NOEL, James, L.

IPC: G21C9/00 ,  G21D5/04

CPC classification number: G21D1/00 ,  G08B13/122 ,  Y02E30/40

Abstract: A nuclear island includes at least one nuclear reactor. A turbine island includes at least a turbine building housing at least one turbine driven by steam generated by the nuclear reactor. A protected area has a perimeter protected by at least one fence. An isolation zone surrounds the protected area and includes intrusion detection devices configured to detect unauthorized approach toward the protected area. The nuclear island is disposed inside the protected area, and the turbine island is disposed outside of and spaced apart from the protected area.

Abstract translation: 一个核岛包括至少一个核反应堆。 涡轮机岛包括至少一个涡轮机建筑物，其容纳由核反应堆产生的蒸汽驱动的至少一个涡轮机。 一个保护区有一个周边由至少一个栅栏保护。 隔离区域围绕保护区域，并且包括被配置成检测未经授权的接近保护区域的入侵检测设备。 核岛设置在保护区域内，并且涡轮岛设置在保护区域的外部并与其隔开。

公开(公告)号：WO2012027128A1

公开(公告)日：2012-03-01

申请号：PCT/US2011/047447

申请日：2011-08-11

Applicant: BABCOCK & WILCOX NUCLEAR ENERGY, INC. ,  SHARGOTS, Scott, J. ,  ALES, Mathew, W.

Inventor： SHARGOTS, Scott, J. ,  ALES, Mathew, W.

IPC: G21C7/117

CPC classification number: G21C7/117 ,  G21C7/12 ,  G21C9/02 ,  Y02E30/39

Abstract: A nuclear reactor includes a pressure vessel, and a control rod assembly (CRA) including at least one movable control rod, a control rod drive mechanism (CRDM) for controlling movement of the at least one control rod, and a coupling operatively connecting the at least one control rod and the CRDM. The coupling includes a connecting rod engaged with the CRDM and a terminal element connected with a lower end of the connecting rod and further connected with the at least one control rod. In some embodiments the terminal element includes a first portion comprising a first material having a first density and a second portion comprising a second material having a second density that is greater than the first density. In some embodiments the terminal element has a largest dimension parallel with the connecting rod that is greater than or equal to a largest dimension transverse to the connecting rod.

Abstract translation: 核反应堆包括压力容器和控制杆组件（CRA），控制杆组件（CRA）包括至少一个可移动控制杆，用于控制至少一个控制杆的运动的控制杆驱动机构（CRDM） 至少一个控制杆和CRDM。 联接器包括与CRDM接合的连杆和与连杆的下端连接并与至少一个控制杆连接的端子元件。 在一些实施例中，端子元件包括第一部分，其包括具有第一密度的第一材料，第二部分包括具有大于第一密度的第二密度的第二材料。 在一些实施例中，端子元件具有与连杆平行的最大尺寸，该尺寸大于或等于横向于连接杆的最大尺寸。