Jet pump and method for restraining vibration of the same
    3.
    发明授权
    Jet pump and method for restraining vibration of the same 有权
    喷射泵及其抑制振动的方法

    公开(公告)号:US08842799B2

    公开(公告)日:2014-09-23

    申请号:US13258983

    申请日:2010-04-02

    摘要: A jet pump which can restrain self-excited vibration in a connection portion between an inlet mixer pipe and a diffuser pipe without inhibiting a structural deformation due to thermal expansion and the like includes a slip joint structure connecting the inlet mixer pipe and the diffuser pipe to each other by inserting the inlet mixer pipe into an upper end opening of the diffuser pipe with a clearance left therebetween; and a self vibration damping structure configured such that when the clearance defined by an outer pipe wall of the inlet mixer pipe and an inner pipe wall of the diffuser pipe is widening or narrowing due to vibration of the inlet mixer pipe or the diffuser pipe, a flow path resistance inside a clearance flow path for pumped coolant water defined by the clearance is not smaller than a fluid inertia force all over the clearance flow path.

    摘要翻译: 可以抑制入口混合管和扩散管之间的连接部分中的自激振动而不抑制由于热膨胀等引起的结构变形的喷射泵包括将入口混合管和扩散管连接的滑接结构 彼此通过将入口混合器管插入扩散管的上端开口中,间隙留在其中; 以及自振动阻尼结构,其被构造成使得当由入口混合管的外管壁和扩散管的内管壁限定的间隙由于入口混合管或扩散管的振动而变宽或变窄时, 由间隙限定的泵送冷却水的间隙流路内的流路阻力不小于整个间隙流路上的流体惯性力。

    JET PUMP AND METHOD FOR RESTRAINING VIBRATION OF THE SAME
    4.
    发明申请
    JET PUMP AND METHOD FOR RESTRAINING VIBRATION OF THE SAME 有权
    喷射泵和用于限制其振动的方法

    公开(公告)号:US20120027158A1

    公开(公告)日:2012-02-02

    申请号:US13258983

    申请日:2010-04-02

    IPC分类号: G21C15/25

    摘要: The present invention has an object to provide a jet pump, which can restrain self-excited vibration in a connection portion between an inlet mixer pipe and a diffuser pipe without inhibiting a structural deformation due to thermal expansion and the like.The jet pump includes: a slip joint structure connecting the inlet mixer pipe and the diffuser pipe to each other by inserting the inlet mixer pipe into an upper end opening of the diffuser pipe with a clearance left therebetween; and a self vibration damping structure configured such that when the clearance defined by an outer pipe wall of the inlet mixer pipe and an inner pipe wall of the diffuser pipe is widening or narrowing due to vibration of the inlet mixer pipe or the diffuser pipe, a flow path resistance inside a clearance flow path for pumped coolant water defined by the clearance is not smaller than a fluid inertia force all over the clearance flow path.

    摘要翻译: 本发明的目的是提供一种喷射泵,其可以抑制入口混合管和扩散管之间的连接部分中的自激振动,而不会阻碍由于热膨胀等引起的结构变形。 喷射泵包括:通过将入口混合器管插入到扩散管的上端开口中并将间隙留在其间的方式将入口混合管和扩散管彼此连接的滑接结构; 以及自振动阻尼结构,其被构造成使得当由入口混合管的外管壁和扩散管的内管壁限定的间隙由于入口混合管或扩散管的振动而变宽或变窄时, 由间隙限定的泵送冷却水的间隙流路内的流路阻力不小于整个间隙流路上的流体惯性力。

    VIBRATION EVALUATION APPARATUS AND VIBRATION EVALUATION METHOD
    5.
    发明申请
    VIBRATION EVALUATION APPARATUS AND VIBRATION EVALUATION METHOD 审中-公开
    振动评估装置和振动评估方法

    公开(公告)号:US20100202581A1

    公开(公告)日:2010-08-12

    申请号:US12679801

    申请日:2008-09-24

    IPC分类号: G21C17/00

    摘要: The present invention includes: a plurality of sensors (strain gauge, accelerometer, ultrasonic sensor) that measure data on vibration at a plurality of measurement points on a jet pump; a vibration analysis unit that performs vibration analysis using a numerical structure analysis model of the jet pump, and calculates a vibration state of the jet pump; and an evaluation unit that estimates and evaluates a vibration state in each position on the jet pump using the numerical structure analysis model when an analysis result in a position corresponding to the measurement point by the vibration analysis of the vibration analysis unit matches the data measured by the sensors.

    摘要翻译: 本发明包括:测量喷射泵上多个测量点的振动数据的多个传感器(应变计,加速度计,超声波传感器); 振动分析单元,使用喷射泵的数值结构分析模型进行振动分析,并计算喷射泵的振动状态; 以及估计单元,当通过振动分析单元的振动分析对与测量点对应的位置的分析结果与通过振动分析单元测量的数据相匹配时,使用数值结构分析模型来估计和评估喷射泵上每个位置的振动状态 传感器。

    Pressurized water reactor
    6.
    发明授权
    Pressurized water reactor 有权
    加压水反应堆

    公开(公告)号:US09251919B2

    公开(公告)日:2016-02-02

    申请号:US13993227

    申请日:2011-12-13

    IPC分类号: G21C13/00 G21C15/02 G21C13/02

    摘要: The pressurized water reactor according an embodiment comprises: a cylindrical reactor pressure vessel (1) to which inlet nozzles are connected; fuel assemblies which are contained within the reactor pressure vessel (1); a cylindrical reactor core barrel (3) which surrounds the fuel assemblies and forms an annular downcomer (6) between the reactor core barrel (3) and the inner surface of the reactor pressure vessel (1); and radial supports. The radial supports are supports which are arranged below the downcomer (6) at intervals in the circumferential direction, each has vertical flow path formed therein, and position the reactor core barrel (3) and the reactor pressure vessel (1). The radial supports each has, for example, a flow path-equipped radial keys (21) and a key groove member (40).

    摘要翻译: 根据一个实施方案的加压水反应器包括:连接入口喷嘴的圆柱形反应器压力容器(1); 包含在反应堆压力容器(1)内的燃料组件; 围绕燃料组件并在反应堆芯筒(3)和反应堆压力容器(1)的内表面之间形成环形降液管(6)的圆柱形反应堆芯筒(3); 和径向支撑。 径向支撑件是沿圆周方向间隔地设置在降液管(6)下方的支撑件,每个都具有形成在其中的垂直流动通道,并且将反应堆堆芯筒(3)和反应堆压力容器(1)定位。 径向支撑件各自具有例如具有流动路径的径向键(21)和键槽构件(40)。

    PRESSURIZED WATER REACTOR
    7.
    发明申请
    PRESSURIZED WATER REACTOR 有权
    加压水反应器

    公开(公告)号:US20130343505A1

    公开(公告)日:2013-12-26

    申请号:US13993227

    申请日:2011-12-13

    IPC分类号: G21C15/02

    摘要: The pressurized water reactor according an embodiment comprises: a cylindrical reactor pressure vessel (1) to which inlet nozzles are connected; fuel assemblies which are contained within the reactor pressure vessel (1); a cylindrical reactor core barrel (3) which surrounds the fuel assemblies and forms an annular downcomer (6) between the reactor core barrel (3) and the inner surface of the reactor pressure vessel (1); and radial supports. The radial supports are supports which are arranged below the downcomer (6) at intervals in the circumferential direction, each has vertical flow path formed therein, and position the reactor core barrel (3) and the reactor pressure vessel (1). The radial supports each has, for example, a flow path-equipped radial keys (21) and a key groove member (40).

    摘要翻译: 根据一个实施方案的加压水反应器包括:连接入口喷嘴的圆柱形反应器压力容器(1); 包含在反应堆压力容器(1)内的燃料组件; 围绕燃料组件并在反应堆芯筒(3)和反应堆压力容器(1)的内表面之间形成环形降液管(6)的圆柱形反应堆芯筒(3); 和径向支撑。 径向支撑件是沿圆周方向间隔地设置在降液管(6)下方的支撑件,每个都具有形成在其中的垂直流动通道,并且将反应堆堆芯筒(3)和反应堆压力容器(1)定位。 径向支撑件各自具有例如具有流动路径的径向键(21)和键槽构件(40)。

    Vibration monitoring apparatus and vibration monitoring method
    8.
    发明授权
    Vibration monitoring apparatus and vibration monitoring method 有权
    振动监测装置及振动监测方法

    公开(公告)号:US08701493B2

    公开(公告)日:2014-04-22

    申请号:US12677999

    申请日:2008-09-12

    IPC分类号: G01N29/00

    摘要: The present invention provides a vibration monitoring apparatus that monitors vibration of a jet pump disposed in a reactor pressure vessel using ultrasonic wave, including: an ultrasonic sensor that is attached to an outside the reactor pressure vessel, and transmits and receives ultrasonic wave; a reflector that is mounted on a surface of a riser pipe of the jet pump, and includes a planar reflecting surface that can reflect ultrasonic wave; and a signal processing unit that performs signal processing of the ultrasonic wave transmitted by the ultrasonic sensor, reflected by the reflecting surface of the reflector, and received by the ultrasonic sensor, and measures a vibration amplitude of the riser pipe and calculates a vibration waveform.

    摘要翻译: 本发明提供了一种使用超声波监测设置在反应堆压力容器中的喷射泵的振动的振动监测装置,包括:超声波传感器,其附接到反应堆压力容器的外部,并且发送和接收超声波; 安装在喷射泵的提升管的表面上的反射器,包括能够反射超声波的平面反射面; 以及信号处理单元,执行由超声波传感器发送的超声波的信号处理,由反射器的反射面反射并由超声波传感器接收,并且测量提升管的振幅并计算振动波形。

    VIBRATION MONITORING APPARATUS AND VIBRATION MONITORING METHOD
    9.
    发明申请
    VIBRATION MONITORING APPARATUS AND VIBRATION MONITORING METHOD 有权
    振动监测装置和振动监测方法

    公开(公告)号:US20110154900A1

    公开(公告)日:2011-06-30

    申请号:US12677999

    申请日:2008-09-12

    IPC分类号: G01H1/06 G01N29/04 G01H1/08

    摘要: The present invention provides a vibration monitoring apparatus that monitors vibration of a jet pump disposed in a reactor pressure vessel using ultrasonic wave, including: an ultrasonic sensor that is attached to an outside the reactor pressure vessel, and transmits and receives ultrasonic wave; a reflector that is mounted on a surface of a riser pipe of the jet pump, and includes a planar reflecting surface that can reflect ultrasonic wave; and a signal processing unit that performs signal processing of the ultrasonic wave transmitted by the ultrasonic sensor, reflected by the reflecting surface of the reflector, and received by the ultrasonic sensor, and measures a vibration amplitude of the riser pipe and calculates a vibration waveform.

    摘要翻译: 本发明提供了一种使用超声波监测设置在反应堆压力容器中的喷射泵的振动的振动监测装置,包括:超声波传感器,其附接到反应堆压力容器的外部,并且发送和接收超声波; 安装在喷射泵的提升管的表面上的反射器,包括能够反射超声波的平面反射面; 以及信号处理单元,执行由超声波传感器发送的超声波的信号处理,由反射器的反射面反射并由超声波传感器接收,并且测量提升管的振幅并计算振动波形。

    Sewing machine which performs a stitching operation using multiple kinds
of threads
    10.
    发明授权
    Sewing machine which performs a stitching operation using multiple kinds of threads 失效
    使用多种线程进行拼接操作的缝纫机

    公开(公告)号:US5832850A

    公开(公告)日:1998-11-10

    申请号:US860010

    申请日:1997-06-16

    摘要: A sewing machine which performs a stitching operation using multiple kinds of threads has: a plurality of thread supplies; a thread selection device which selects and extracts an arbitrary thread from the plural threads supplied from the thread supplies; a stitching needle; and means for nipping a front end portion of the thread extracted by the selection device, and for bringing the front end portion to the needle. The thread extracted and selected by the selection device is brought to the needle while the front end portion is mechanically nipped.

    摘要翻译: PCT No.PCT / JP95 / 02603 Sec。 371日期:1997年6月16日 102(e)日期1997年6月16日PCT 1995年12月18日PCT PCT。 WO96 / 19608 PCT出版物 日期1996年6月27日使用多种螺纹进行拼接操作的缝纫机具有:多根线材供给; 线选择装置,其从从所述线供给供给的所述多个线索中选择并提取任意线; 缝针 以及用于夹持由选择装置抽出的线的前端部分并将前端部分带到针的装置。 当机械地夹持前端部分时,由选择装置提取和选择的线被带到针上。