SYSTEM AND METHOD FOR IMPROVING SENSITIVITY OF A SIPPING SYSTEM
    1.
    发明申请
    SYSTEM AND METHOD FOR IMPROVING SENSITIVITY OF A SIPPING SYSTEM 审中-公开
    提高SIPPING系统灵敏度的系统和方法

    公开(公告)号:WO2015109182A2

    公开(公告)日:2015-07-23

    申请号:PCT/US2015/011752

    申请日:2015-01-16

    CPC classification number: G21C17/07 G21Y2002/204 G21Y2004/40

    Abstract: A method and system detects failures in nuclear fuel assemblies. A water treatment device degasses/removes fission gases from water used in the canister of a vacuum sipping device. A sipping procedure then detects a failure in a fuel assembly in the canister. The degassing improves a signal-to-noise ratio of the detector used during the sipping process, and improves the failure detection sensitivity of the system. Additionally and/or alternatively, gas may be recirculated through the canister water before the vacuum is applied so that fission gas concentration in the recirculating gas reaches a baseline equilibrium with the canister water. The vacuum is thereafter applied and the sipping procedure proceeds such that an increase in detected radioactivity over the baseline equilibrium indicates a leak in the fuel assembly.

    Abstract translation: 一种方法和系统检测核燃料组件的故障。 水处理装置对真空吸水装置的罐中使用的水进行脱气/除去裂变气体。 然后,浸渍过程检测罐中的燃料组件中的故障。 脱气提高了在浸渍过程中使用的检测器的信噪比,并提高了系统的故障检测灵敏度。 另外和/或替代地,在施加真空之前,气体可以通过罐水再循环,使得再循环气体中的裂变气体浓度达到与罐水的基线平衡。 然后施加真空并且进行浸渍过程,使得检测到的放射性在基线平衡上的增加表示燃料组件中的泄漏。

    POSITIONAL ENCODER AND CONTROL ROD POSITION INDICATOR FOR NUCLEAR REACTOR USING SAME
    2.
    发明申请
    POSITIONAL ENCODER AND CONTROL ROD POSITION INDICATOR FOR NUCLEAR REACTOR USING SAME 审中-公开
    用于核反应堆的位置编码器和控制杆位置指示器

    公开(公告)号:WO2013184181A3

    公开(公告)日:2014-03-13

    申请号:PCT/US2013026471

    申请日:2013-02-15

    Abstract: A cam is immersed in water at an elevated temperature and/or pressure. A reciprocating cam follower also immersed in the water contacts a surface of the cam. The cam follower includes a permanent magnet. An electrically conductive coil is magnetically coupled with the permanent magnet such that movement of the cam follower induces an electrical signal in the electrically conductive coil. A sealed housing also immersed in the water contains the electrically conductive coil and seals it from contact with the water. Leads of the coil are electrically accessible from outside the sealed housing and from outside the water. Alternatively, the cam includes magnetic inserts, the cam follower is replaced by a sensor arm of magnetic material, and the sensor arm and/or the inserts are magnetized whereby rotation of the rotary element causes time modulation of the magnetic coupling and induces coil voltage.

    Abstract translation: 凸轮在升高的温度和/或压力下浸入水中。 还浸在水中的往复式凸轮从动件与凸轮的表面接触。 凸轮从动件包括永磁体。 导电线圈与永磁体磁耦合,使得凸轮从动件的运动在导电线圈中引起电信号。 也浸没在水中的密封壳体包含导电线圈并将其密封以防止与水接触。 线圈的引线可从密封外壳的外部和从水外部电接触。 或者,凸轮包括磁性插入件,凸轮从动件由磁性材料的传感器臂代替,并且传感器臂和/或插入件被磁化,由此旋转元件的旋转引起磁耦合的时间调制并且引起线圈电压。

    DISPOSITIF DE DESCENTE ET DE MONTEE D'ELEMENTS DE COMBUSTIBLE NUCLEAIRE DANS DES ALVEOLES D'UN EMBALLAGE
    3.
    发明申请
    DISPOSITIF DE DESCENTE ET DE MONTEE D'ELEMENTS DE COMBUSTIBLE NUCLEAIRE DANS DES ALVEOLES D'UN EMBALLAGE 审中-公开
    降低和提高集装箱内的核燃料元素的装置

    公开(公告)号:WO2009135900A1

    公开(公告)日:2009-11-12

    申请号:PCT/EP2009/055538

    申请日:2009-05-07

    Inventor: FANTINI, Serge

    CPC classification number: G21C19/10 G21C19/32 G21Y2002/204 G21Y2004/30

    Abstract: L'installation comprend une caméra (9) suspendue à un pont roulant (6) en même temps qu'un palan (7) porteur de l'élément de combustible (8) à descendre ou monter. Elle indique la position du pont roulant (6) par rapport à l'alvéole (2) à occuper, et un mouvement déterminé du pont roulant (6) place l'élément de combustible (8) au-dessus de l'alvéole. Un avaloir (10) à l'entrée de l'alvéole (2), porteur d'une paire de caméras (13, 14), effectue une seconde mesure de la position de l'élément de combustible (8) en même temps qu'un guidage sans frottement. Application au chargement ou au déchargement d'éléments de combustible nucléaire dans des emballages de transport.

    Abstract translation: 该装置包括一个从起重机(6)悬挂的照相机(9)以及一个带有要降低或升高的燃料元件(8)的滑轮组件(7)。 摄像机指示行进起重机(6)相对于要被占用的隔室(2)的位置,并且行驶起重机(6)的预定运动将燃料元件(8)定位在隔室上。 携带一对照相机(13,14)的隔室(2)的入口处的漏斗状引导件(10)对燃料元件(8)的位置进行第二次测量以及提供无摩擦的引导。 本发明可用于装载或卸载核燃料元件进出运输集装箱。

    FULL FUNCTION PRESCISION WELDING SYSTEM
    4.
    发明申请
    FULL FUNCTION PRESCISION WELDING SYSTEM 审中-公开
    全功能预处理焊接系统

    公开(公告)号:WO2008066955A2

    公开(公告)日:2008-06-05

    申请号:PCT/US2007069631

    申请日:2007-05-24

    Applicant: SPENCER KEITH

    Abstract: A welding system (10) for welding a pipe (18) within a confined space includes a motor housing (11), a weld head assembly (12) remote from the motor housing and an insertion tube (13) extending between the motor housing and the weld head assembly. The motor housing is supported on a platform (17) for rotational and translational movement of the weld head assembly and houses a motor for positioning the weld head assembly relative to the pipe. The weld head assembly includes a clamp assembly (31) for attaching to the pipe and a weld tool assembly (30) mounted adjacent the clamp assembly for welding the pipe. An arc length gear (33) and a travel gear (34) adjust the distance between a torch assembly (38) and the pipe, and adjust the location of the torch assembly around the pipe when the weld head assembly is attached to the pipe.

    Abstract translation: 用于在密闭空间内焊接管道(18)的焊接系统(10)包括马达壳体(11),远离马达壳体的焊接头组件(12)和在马达壳体和马达壳体之间延伸的插入管(13) 焊头组件。 电动机壳体支撑在平台(17)上,用于焊接头组件的旋转和平移运动,并容纳用于相对于管道定位焊接头组件的电动机。 焊头组件包括用于附接到管道的夹紧组件(31)和邻近夹具组件安装以焊接管道的焊接工具组件(30)。 弧形齿轮(33)和行走齿轮(34)调整炬组件(38)和管道之间的距离,并且当焊接头组件附接到管道时,调整焊枪组件围绕管道的位置。

    METHOD FOR EDDY-CURRENT TEST OF GADOLINIUM CONTENT IN EACH PELLET OF URANIUM-GADOLINIUM FUEL COLUMN IN A FUEL ELEMENT AND DEVICE FOR CARRYING OUT SAID METHOD
    6.
    发明申请
    METHOD FOR EDDY-CURRENT TEST OF GADOLINIUM CONTENT IN EACH PELLET OF URANIUM-GADOLINIUM FUEL COLUMN IN A FUEL ELEMENT AND DEVICE FOR CARRYING OUT SAID METHOD 审中-公开
    用于燃料元件的铀 - 钆燃料塔的每个颗粒中的钆内含物的电流测试方法和用于实施该方法的装置

    公开(公告)号:WO2004008462A1

    公开(公告)日:2004-01-22

    申请号:PCT/RU2002/000333

    申请日:2002-07-12

    Abstract: The invention relates to a nondistuctive eddy-current test of materials and products. The inventive method and device are based on comparison of test results on the same cross section of a fuel element by means of two measuring systems. Said systems comprise transmission transducers through which a tested fuel element is displaced, and compensation converters provided with reference samples inserted therein. In the first system, the test is carried out when an external constant magnetic field formed by constant magnets is superimposed. In the second system, the test is carried out outside of magnetic field. The thus obtained results are used for computing the gadolinium content in each pellet taking into account the interference produces by ferromagnetic inclusions and the deviation of the conductivity and geometrical dimensions of the tested fuel element claddings from the reference sample claddings, and also the axial offset of the tested fuel element with respect to the axes of the transducers. The inventive method and device ensure a more accurate gadolinium determination in the presence of the ferromagnetic inclusions in the pallets.

    Abstract translation: 本发明涉及材料和产品的非导体涡流测试。 本发明的方法和装置基于通过两个测量系统在燃料元件的相同横截面上的测试结果的比较。 所述系统包括测试燃料元件通过其移动的变速器换能器,并且其中插入有参考样本的补偿转换器。 在第一系统中,当由恒定磁体形成的外部恒定磁场叠加时,进行测试。 在第二系统中,测试在磁场外进行。 由此获得的结果用于计算每个颗粒中的钆含量,考虑到铁磁性夹杂物产生的干扰以及测试的燃料元件包层与参考样品包层的导电性和几何尺寸的偏差,以及轴向偏移 测试的燃料元件相对于换能器的轴线。 本发明的方法和装置确保在托盘中的铁磁性夹杂物存在下更准确的钆测定。

    PARAVENT DE PROTECTION CONTRE LES EMISSIONS DE RAYONNEMENTS IONISANTS
    7.
    发明申请
    PARAVENT DE PROTECTION CONTRE LES EMISSIONS DE RAYONNEMENTS IONISANTS 审中-公开
    防止离子辐射发射的防护屏幕

    公开(公告)号:WO2003088267A1

    公开(公告)日:2003-10-23

    申请号:PCT/FR2003/001247

    申请日:2003-04-17

    Abstract: Ce paravent de protection est constitué d'une paroi frontale (1) associée à une paroi latérale (2) s'étendant à l'équerre ou sensiblement à l'équerre à partir de ladite paroi frontale (1), lesquelles parois (1, 2) comportent des panneaux transparents (8, 10) sur une partie au moins de leur hauteur. La partie supérieure (8) de la paroi frontale (1), d'une part est inclinée vers l'avant, formant surplomb, pour permettre à l'opérateur de se rapprocher de la zone d'intervention, et d'autre part, est munie de deux orifices (11, 12) pour le passage des bras dudit opérateur.

    Abstract translation: 所述保护屏包括前壁(1),其连接到垂直于或基本上垂直于所述前壁(1)延伸的侧壁(2),所述壁(1,2)至少包括透明板(8,10) 其高度的一部分。 前壁(1)的上部(8)向前倾斜,形成突出部,使得操作者能够接近工作区域并且具有两个孔(11,12)以允许操作者的手臂通过。

    METHOD AND DEVICE FOR MEASURING THE THICKNESS OF AN OXIDE LAYER ON THE PENCIL CLADDING IN A FUEL ASSEMBLY
    8.
    发明申请
    METHOD AND DEVICE FOR MEASURING THE THICKNESS OF AN OXIDE LAYER ON THE PENCIL CLADDING IN A FUEL ASSEMBLY 审中-公开
    用于测量燃料组件中的氧化层厚度的方法和装置

    公开(公告)号:WO02052222A1

    公开(公告)日:2002-07-04

    申请号:PCT/FR2001/004083

    申请日:2001-12-19

    Abstract: The invention concerns a method which consists in: moving a measuring head (8a) of the probe (8) along the length of a gap (12) between two rows of pencils (4) and in its extension on either side of the passage gap (12) and of the pipe provers, in an outgoing direction and in a return direction opposite to the outgoing direction; collecting and transmitting the probe signal in digital form to a computing unit (18) comprising a software for processing the signal and for determining the thickness of an oxide layer on the outer surfaces of the pencils (4); determining the minima of the probe (8) signal during its displacement in the passage gap between the rows of pencils (4); adjusting a calibration curve based on the minima values of the signal of the probe in contact with the calibration pencils; determining the thickness values of the oxide layer corresponding to the signal minima, based on the calibration curve; verifying the coherence of the thickness values obtained for each of the pencils of the row of pencils in the outgoing direction and in the return direction of the probe (8) displacement and recording and displaying the coherent thickness values of the oxide layer for each of the pencils (4).

    Abstract translation: 本发明涉及一种方法,其特征在于:将探针(8)的测量头(8a)沿着两行铅笔(4)之间的间隙(12)的长度移动,并且在通道间隙的任一侧的延伸部 (12)和管道检验器在出射方向和与出射方向相反的返回方向上; 以数字形式收集和发送探测信号到计算单元(18),该计算单元(18)包括用于处理信号并确定铅笔(4)的外表面上的氧化物层的厚度的软件; 确定探针(8)信号在铅笔(4)之间的通道间隙中位移期间的最小值; 基于与校准铅笔接触的探头的信号的最小值来调整校准曲线; 基于校准曲线确定对应于信号最小值的氧化物层的厚度值; 验证针对铅笔的输出方向和探头(8)的返回方向上的铅笔行中的每个铅笔获得的厚度值的相干性,并记录并显示氧化物层的相干厚度值 铅笔(4)。

    BRACELET FOR MOVING ULTRASONIC SENSORS ALONG A PIPE
    10.
    发明申请
    BRACELET FOR MOVING ULTRASONIC SENSORS ALONG A PIPE 审中-公开
    用于移动超声波传感器的手套

    公开(公告)号:WO0196808A3

    公开(公告)日:2002-05-02

    申请号:PCT/CA0100842

    申请日:2001-06-08

    Applicant: HYDRO QUEBEC

    Inventor: LAVOIE ERIC

    Abstract: A bracelet (14) for moving sensors (12) along a straight or elbow pipe. The bracelet (14) has a number of side-by-side positionable supports (10) for removably holding the sensors (12) respectively. A flexible attachment, such as a string (20), is provided for holding the supports (10) in a pliant side-by-side series arrangement (22). The string (20) has opposite ends (24) extending beyond the supports (10) at opposite ends (26) of the series arrangement (22). The bracelet (14) further has a frame (28) having an inner circular opened surface (30) for installation around the pipe, and a longitudinal circular side receiving surface (32) along which the series arrangement (22) of the supports (10) is mounted. The side receiving surface (32) is provided with fastening members (34) projecting at both ends (26) of the series arrangement (22) of the supports (10). The ends (24) of the string (20) is supported by the fastening members (34).

    Abstract translation: 用于沿着直管或弯管移动传感器(12)的手镯(14)。 手镯(14)具有分别用于可移除地保持传感器(12)的多个并排的可定位支撑件(10)。 提供了诸如弦线(20)的柔性附件,用于将支撑件(10)保持在柔顺的并排串联装置(22)中。 弦(20)具有在串联装置(22)的相对端(26)处延伸超过支撑件(10)的相对端(24)。 手镯(14)还具有框架(28),该框架具有用于围绕管道安装的内部圆形开口表面(30)和纵向圆形侧面接收表面(32),支撑件(10)的串联装置 )。 侧接收表面(32)设置有在支撑件(10)的串联装置(22)的两端(26)处突出的紧固构件(34)。 绳(20)的端部(24)由紧固构件(34)支撑。

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