Nuclear reactor, in particular pool-type nuclear reactor, with new-concept fuel elements
    1.
    发明授权
    Nuclear reactor, in particular pool-type nuclear reactor, with new-concept fuel elements 有权
    核反应堆,特别是池式核反应堆,具有新概念燃料元素

    公开(公告)号:US08817942B2

    公开(公告)日:2014-08-26

    申请号:US12680055

    申请日:2008-09-25

    申请人: Luciano Cinotti

    发明人: Luciano Cinotti

    摘要: The present invention relates to a nuclear reactor, in particular a pool-type nuclear reactor cooled with liquid metal (for example, a heavy metal such as lead or lead-bismuth eutectic) or with sodium or molten salts, having a core formed by a bundle of fuel elements and immersed in a primary fluid circulating between the core and at least one heat exchanger; the fuel elements extend along respective parallel longitudinal axes and have respective bottom active parts immersed in the primary fluid to constitute the core, and respective service parts that extend at the top from the active parts and emerge from the primary fluid; the fuel elements are mechanically supported via respective top end heads anchored to supporting structures and can be operated via handling machines.

    摘要翻译: 本发明涉及一种核反应堆,特别是用液态金属(例如重金属如铅或铅 - 铋共晶体)或钠盐或熔融盐冷却的池型核反应堆,其具有由 一束燃料元件并浸没在在芯和至少一个热交换器之间循环的主流体中; 燃料元件沿着相应的平行纵向轴线延伸并且具有浸入初级流体中的相应的底部活性部分以构成芯部,以及从顶部在活性部分处延伸并从初级流体出来的相应的服务部件; 燃料元件通过锚定到支撑结构的相应的顶端头机械地支撑,并且可以通过处理机器操作。

    Nuclear fuel assembly for boiling water reactor
    2.
    发明授权
    Nuclear fuel assembly for boiling water reactor 有权
    沸水反应堆核燃料组件

    公开(公告)号:US08644444B2

    公开(公告)日:2014-02-04

    申请号:US12935198

    申请日:2009-03-30

    IPC分类号: G21C3/32

    摘要: An assembly of the type having a water channel extending along a longitudinal axis and having an upper section of larger cross-section area than a lower section and at least one fuel rod receiving groove extending longitudinally on the outer surface of the lower section, fuel rods extending longitudinally and disposed around the water channel and fixing members for fixing at least one fuel rod to the water channel in the at least one groove below the upper section.According to one aspect of the invention, the at least one groove extends along the upper section such that a fuel rod received in fixing members is longitudinally extractable or insertable from the upper end side of the fuel assembly.

    摘要翻译: 该类型的组件具有沿着纵向轴线延伸的水通道,并且具有比下部分更大的横截面面积的上部部分和在下部分的外表面上纵向延伸的至少一个燃料棒容纳槽,燃料棒 纵向延伸并设置在水通道周围并且用于将至少一个燃料棒固定到上部下方的至少一个槽中的水通道的固定构件。 根据本发明的一个方面,所述至少一个凹槽沿着上部部分延伸,使得容纳在固定构件中的燃料棒可纵向地从燃料组件的上端侧提取或插入。

    METHOD AND APPARATUS FOR AN EXPANDING SPLIT BUSHING PIPE PLUG ASSEMBLY
    3.
    发明申请
    METHOD AND APPARATUS FOR AN EXPANDING SPLIT BUSHING PIPE PLUG ASSEMBLY 有权
    扩展分支管道管道组件的方法和装置

    公开(公告)号:US20120155599A1

    公开(公告)日:2012-06-21

    申请号:US12969860

    申请日:2010-12-16

    摘要: A method and apparatus for securely fastening a pipe collar or a bracket to a riser pipe of a boiling water reactor (BWR) jet pump assembly. A pipe plug assembly includes an angled pipe plug that acts as a wedge to expand a bushing assembly as the pipe plug is drawn into the overall pipe plug assembly. Expansion of the bushing assembly allows a tight tolerance to exist between an outer diameter of the pipe plug and an inner diameter of the collar/bracket and riser pipe. Expansion of the bushing assembly allows a straight hole to be match drilled into the collar/bracket and riser pipe, thereby avoiding a more complicated tapered hole to be drilled into the collar/bracket and riser pipe. An ensuing tight fit between the pipe plug assembly, the collar/bracket and the riser pipe mitigates vibration of components and minimizes leakage to acceptable levels for use in the flooded environment of the annulus region where the jet pump assembly exists in the BWR.

    摘要翻译: 一种用于将管环或支架牢固地紧固到沸水反应堆(BWR)喷射泵组件的提升管的方法和装置。 管塞组件包括成角度的管塞,其作为楔形件,当管塞被拉入整个管塞组件时用于膨胀衬套组件。 衬套组件的膨胀允许在管塞的外径和套环/支架和提升管的内径之间存在严格的公差。 衬套组件的膨胀允许将直孔与钻头/支架和提升管相匹配,从而避免了更复杂的锥形孔钻入套管/支架和立管中。 随后在管塞组件,套环/支架和提升管之间的紧密配合减轻了部件的振动并将泄漏最小化到可接受的水平以用于在BWR中存在喷射泵组件的环带区域的淹没环境中。

    Nuclear core component hold-down assembly
    4.
    发明授权
    Nuclear core component hold-down assembly 有权
    核心部件压紧组件

    公开(公告)号:US07995701B2

    公开(公告)日:2011-08-09

    申请号:US12124195

    申请日:2008-05-21

    申请人: Jin Liu Yu Chung Lee

    发明人: Jin Liu Yu Chung Lee

    IPC分类号: G21C3/33

    摘要: A plate mounted fuel assembly hold-down system that provides a defined channel for both the insertion and removal of reactor head mounted, fixed in-core detector instrumentation, provides a guided path for the fixed in-core detector during insertion, and shields the instrument shroud against coolant cross flow. The hold-down assembly includes a base plate that seats on the adapter plate of the fuel assembly and has openings that align with the control rod guide thimbles. A hollow sleeve extends through and below a central opening in the base plate to mate with the fuel assembly instrument thimble. The sleeve extends above the base plate and through and above an upper core plate of the reactor. A hold-down bar is slidably mounted on the sleeve and is restrained below the top of the sleeve. A spring is positioned around the sleeve and is captured between the hold-down bar and the base plate.

    摘要翻译: 提供用于插入和拆卸反应器头安装的固定核心检测器仪表的限定通道的板式燃料组件压紧系统为插入期间的固定核心检测器提供了导向路径,并屏蔽了仪器 防止冷却液横流。 压紧组件包括一个底板,该底座位于燃料组件的适配器板上并具有与控制棒导向套管对准的开口。 中空套筒延伸穿过基板中的中心开口并在其下方与燃料组件仪表套管配合。 套筒在基板上延伸并且穿过反应器的上芯板并且上方。 压紧杆可滑动地安装在套筒上并且被限制在套筒的顶部之下。 弹簧定位在套筒周围,并被夹在压紧杆和底板之间。

    Method of repairing a nuclear reactor vessel bottom head penetration
    5.
    发明授权
    Method of repairing a nuclear reactor vessel bottom head penetration 有权
    修复核反应堆船底底部渗透的方法

    公开(公告)号:US07971330B2

    公开(公告)日:2011-07-05

    申请号:US11763790

    申请日:2007-06-15

    IPC分类号: B23P6/00

    摘要: A method of repairing a vessel bottom head penetration of a nuclear reactor is presented, said penetration comprising a tube fastened to the internal wall of the vessel bottom head by an internal weld bead and emerging outside the vessel bottom head, forming a groove. The method consists inter alia in preparing a mock-up representative of the vessel bottom head penetration to be repaired and in depositing this mock-up on site in an irradiation-free zone, in fastening two half-inserts to this mock-up in the groove, each half-insert having a profile corresponding to the half-profile of the groove, in forming, again on this mock-up, automatically and by remote control, a weld bead in the groove, in carrying out a dimensional check and, after validation of this weld bead, in carrying out the steps of fastening the two half-inserts and forming a weld bead automatically, directly in the groove of the vessel bottom head penetration to be repaired.

    摘要翻译: 提出了修复核反应堆的容器底部穿透的方法,所述穿透包括通过内部焊道紧固到容器底部头部的内壁并且出现在容器底部头部外部的管,形成凹槽。 该方法特别包括准备一个模拟代表的待修复的船头底部钻孔渗透和在无辐照区域现场沉积这种模型,将两个半插入件紧固在该模型中 槽,每个半插入件具有对应于凹槽的半轮廓的轮廓,在进行尺寸检查时,再次在该模型上自动地并且通过远程控制形成槽中的焊道, 在验证该焊道之后,在执行紧固两个半插入件并自动形成焊道的步骤时,直接在容器底部头部的凹槽中进行待修复。

    PARTICLE THERAPY INSTALLATION
    6.
    发明申请
    PARTICLE THERAPY INSTALLATION 有权
    颗粒治疗安装

    公开(公告)号:US20100171045A1

    公开(公告)日:2010-07-08

    申请号:US12676317

    申请日:2008-08-07

    申请人: Murat Güneysel

    发明人: Murat Güneysel

    IPC分类号: G21F7/005 A61N5/10

    摘要: A particle therapy system that includes at least one irradiation chamber, in which an object is irradiated with a treatment beam, an antechamber, which is screened off from radiation occurring in the irradiation chamber and from which access is made to the irradiation chamber, and an access area, which leads to the irradiation chamber and connects the irradiation chamber to the antechamber, is provided. A support for a patient moves along a path of travel from the antechamber, through the access area, to the irradiation chamber. A radiation protection door is arranged in the access area, and the access area is configured geometrically in such a way that the path of travel in the access area is substantially rectilinear.

    摘要翻译: 一种颗粒治疗系统,其包括至少一个照射室,其中物体被处理束照射;前室,其被从放射照射室中发生的辐射中筛选出,并且进入到照射室;以及 提供通向照射室并将照射室连接到前厅的通路区域。 对患者的支持沿着前厅的行进路径移动,通过入口区域到达照射室。 在接入区域设有防辐射门,并且接入区域以几何方式配置,使得接入区域中的行进路径基本上是直线的。

    Methods and apparatus for inspecting reactor pressure tubes
    7.
    发明授权
    Methods and apparatus for inspecting reactor pressure tubes 有权
    用于检查反应堆压力管的方法和装置

    公开(公告)号:US07563022B2

    公开(公告)日:2009-07-21

    申请号:US10995085

    申请日:2004-11-22

    摘要: An apparatus and method for determining terminal solid solubility temperature in materials capable of forming hydrides, such as reactor pressure tubes. An inspection device is positioned within the reactor pressure tube under test and a pair of annular seals are radially deployed to seal a section of the pressure tube. Any water within the sealed section is displaced through the injection of gas and the heating of the sealed section to dry the tube and the device. A probe assembly on the device is deployed to contact the interior surface of the pressure tube and measure resistivity changes in the pressure tube wall as a function of temperature. The probe assembly includes a thermocouple probe for measuring temperature and transmit and receive coils for inducing eddy currents within the pressure tube wall. The pressure tube is allowed to cool at a predetermined rate, is reheated at a predetermined rate, and is allowed to cool again. Discontinuities within the temperature coefficient of resistivity indicate terminal solid solubility temperatures of precipitation or dissolution, which may be used to determine the hydrogen concentration of the sealed section of reactor pressure tube.

    摘要翻译: 用于确定能够形成氢化物的材料中的终端固体溶解温度的装置和方法,例如反应器压力管。 检查装置位于待测试的反应器压力管内,并且一对环形密封件径向展开以密封压力管的一部分。 密封部分内的任何水通过注入气体和密封部分的加热而移动,以干燥管子和装置。 器件上的探头组件被部署以接触压力管的内表面并且测量压力管壁中的电阻率变化作为温度的函数。 探头组件包括用于测量温度的热电偶探头,以及用于在压力管壁内感应涡流的发射和接收线圈。 允许压力管以预定速率冷却,以预定速率再加热,并再次冷却。 电阻温度系数间的不连续性表示沉淀或溶解的终端固体溶解温度,可用于确定反应堆压力管密封段的氢浓度。

    APPARATUS AND METHOD FOR SUPPORTING FUEL ASSEMBLIES IN AN UNDERWATER ENVIRONMENT HAVING LATERAL ACCESS LOADING
    8.
    发明申请
    APPARATUS AND METHOD FOR SUPPORTING FUEL ASSEMBLIES IN AN UNDERWATER ENVIRONMENT HAVING LATERAL ACCESS LOADING 有权
    在具有侧向加载的水下环境中支持燃油组件的装置和方法

    公开(公告)号:US20080260088A1

    公开(公告)日:2008-10-23

    申请号:US11855110

    申请日:2007-09-13

    IPC分类号: G21C19/07

    摘要: A fuel rack for supporting radioactive fuel assemblies in an underwater (or other submerged) environment that reduces the depth required for the pool to effectuate the fuel rack loading procedure. The fuel rack is specially designed to afford lateral loading. In one embodiment, the fuel rack comprises a body structure comprising at least one substantially vertically oriented elongated cell for receiving a nuclear fuel assembly, the body having a top, a bottom and a first lateral side; at least one elongated slot in the first lateral side of the body structure that forms a passageway into the cell through which a vertically oriented fuel assembly can be loaded; and means for supporting a fuel assembly within the cell in a substantially vertical orientation. In another embodiment, the invention is a method of laterally loading a fuel rack that utilizes rotation of the fuel assembly to secure the fuel assembly within its designated cell.

    摘要翻译: 一种用于在水下(或其他浸没式)环境中支撑放射性燃料组件的燃料架,其减小了池所需的深度以实现燃料架装载程序。 燃油架专门设计用于承受横向载荷。 在一个实施例中,燃料支架包括主体结构,该主体结构包括至少一个基本垂直定向的细长单元,用于接收核燃料组件,该主体具有顶部,底部和第一侧面; 在主体结构的第一侧面中的至少一个细长槽,其形成通向所述单元的通道,垂直定向的燃料组件可通过所述通道加载; 以及用于以基本垂直的方向支撑所述电池内的燃料组件的装置。 在另一个实施例中,本发明是横向加载燃料架的方法,其利用燃料组件的旋转来将燃料组件固定在其指定的单元内。

    Tool for brushing circumferential welds in restricted access areas
    9.
    发明申请
    Tool for brushing circumferential welds in restricted access areas 有权
    用于在限制进入区域刷圆周焊缝的工具

    公开(公告)号:US20080165911A1

    公开(公告)日:2008-07-10

    申请号:US11639337

    申请日:2006-12-15

    申请人: Frank Ortega

    发明人: Frank Ortega

    IPC分类号: G21C13/032 A46B13/02

    摘要: A tool assembly provides for brushing circumferential welds in a restrictive access area between a cylindrical inner member and a cylindrical outer member such as the shroud and vessel in a nuclear reactor. The tool assembly includes a circumferential plate sized larger than an outside diameter of the inner member and smaller than an inside diameter of the outer member. At least one renew brush is coupled with the circumferential plate, and a motor is coupled with the renew brush that rotates the renew brush. A driving assembly mounted between the inner member and the outer member engages the circumferential plate and circumferentially drives the circumferential plate in the restrictive access area.

    摘要翻译: 工具组件提供了在圆筒形内部构件和圆柱形外部构件(例如核反应堆中的护罩和容器)之间的限制性进入区域中刷周向焊缝。 工具组件包括尺寸大于内部构件的外径并小于外部构件的内径的圆周板。 至少一个更新刷与圆周板连接,并且电动机与更新刷连接,更新刷旋转更新刷。 安装在内部构件和外部构件之间的驱动组件与圆周板接合并周向地驱动限制进入区域中的圆周板。

    Jet pump diffuser weld repair device and method
    10.
    发明申请
    Jet pump diffuser weld repair device and method 失效
    喷射泵扩散器焊接维修装置及方法

    公开(公告)号:US20080107227A1

    公开(公告)日:2008-05-08

    申请号:US11583062

    申请日:2006-10-19

    申请人: Barry Hal Koepke

    发明人: Barry Hal Koepke

    IPC分类号: G21C9/00 F16L25/00 F16G11/04

    摘要: A jet pump diffuser weld repair device includes a lower ring section and an upper ring section respectively sized to fit around a circumference of the diffuser on opposite sides of the weld to be repaired. The lower and upper ring sections are provided with a plurality of aligned gripper slots. A corresponding plurality of grippers are fit into the gripper slots, where at least one of the gripper slots and the grippers defines cam surfaces shaped to drive the grippers radially inward as lower and upper ring sections are drawn toward each other. A plurality of connector bolts are secured between the lower ring section and the upper ring section. Tightening of the connector bolts draws the lower and upper ring sections toward each other.

    摘要翻译: 喷射泵扩散器焊接修复装置包括下环段和上环段,其分别尺寸适于围绕待修复的焊缝的相对侧上的扩散器的周边配合。 下环和上环段设置有多个对准的夹持器槽。 相应的多个夹持器装配到夹持器狭槽中,其中夹持器槽和夹具中的至少一个限定凸轮表面,凸轮表面成形为随着下环和上环部分彼此相向地径向向内驱动夹持器。 多个连接器螺栓固定在下环部分和上部环部分之间。 连接器螺栓的紧固将上下环部分彼此拉开。