Thickness reducing management system for pipes in pipe lines
    1.
    发明授权
    Thickness reducing management system for pipes in pipe lines 有权
    管道管道厚度降低管理系统

    公开(公告)号:US06487518B1

    公开(公告)日:2002-11-26

    申请号:US09598050

    申请日:2000-06-21

    IPC分类号: G01B1102

    CPC分类号: G01B21/085

    摘要: In a thickness reducing management for pipes in pipe lines, limited proper parameters which cause erosion and corrosion of the pipes are selected and with these parameters a pipe thickness reducing speed evaluation model formulas are constructed, and by making use of the model formulas thickness reducing amount of the pipes is evaluated. Thereby, conventional difficulty of formulating a proper pipe thickness reducing estimation model formula in view of actual pipe material and pipe inner fluid state because of too many possibly influential parameters causing pipe thickness reducing due to erosion and corrosion, and conventional difficulty of performing highly reliable pipe thickness reducing management are overcome.

    摘要翻译: 在管道管道的厚度减少管理中,选择引起管道腐蚀和腐蚀的有限的适当参数,并通过这些参数构建管道厚度降低速度评估模型公式,并通过使用模型公式减薄量 的管道进行评估。 因此,考虑到实际的管材和管内流体状态,由于侵蚀和腐蚀导致管材厚度减少的可能影响参数太多,制定适当的管道厚度减小估计模型公式的常规难点,以及执行高可靠性管道的常规难题 克服了减薄管理。

    Method for improving residual stress in pipe and method for construction management
    2.
    发明授权
    Method for improving residual stress in pipe and method for construction management 有权
    改善管道残余应力的方法及施工管理方法

    公开(公告)号:US09085811B2

    公开(公告)日:2015-07-21

    申请号:US13080686

    申请日:2011-04-06

    IPC分类号: C21D9/08 C21D11/00

    摘要: A method for improving a residual stress in a pipe includes improving the residual stress in the inner surface to the compressive direction by rapid cooling of the inner surface after heating of the pipe. The heating is to heat a vicinity of a welded part of the pipe from the outer surface to raise the temperature to a construction temperature. The rapid cooling is to rapidly cool the inner surface in the vicinity of the welded part by supplying cooling water into the pipe. The heating and the rapid cooling are repeated twice or more. A method for construction management includes determining whether construction has been executed properly based on a maximum value of a lowering rate of an outer surface temperature of the pipe when the cooling water is supplied for the rapid cooling of the inner surface and a thickness of the pipe in a measuring position of the outer surface temperature.

    摘要翻译: 改善管道中的残余应力的方法包括通过管道加热后内表面的快速冷却来改善内表面与压缩方向的残余应力。 加热是从外表面加热管的焊接部附近,将温度升高到施工温度。 快速冷却是通过向管道中供应冷却水来快速冷却焊接部分附近的内表面。 加热和快速冷却重复两次或更多次。 一种施工管理方法,其特征在于,在供给用于快速冷却内表面的冷却水时,根据管道的外表面温度的降低率的最大值,以及管道的厚度,确定施工是否已正确执行 在外表面温度的测量位置。

    METHOD FOR IMPROVING RESIDUAL STRESS IN PIPE AND METHOD FOR CONSTRUCTION MANAGEMENT
    3.
    发明申请
    METHOD FOR IMPROVING RESIDUAL STRESS IN PIPE AND METHOD FOR CONSTRUCTION MANAGEMENT 有权
    改善管道残余应力的方法及施工管理方法

    公开(公告)号:US20110247729A1

    公开(公告)日:2011-10-13

    申请号:US13080686

    申请日:2011-04-06

    IPC分类号: C21D11/00 C21D9/08

    摘要: A method for improving a residual stress in a pipe includes improving the residual stress in the inner surface to the compressive direction by rapid cooling of the inner surface after heating of the pipe. The heating is to heat a vicinity of a welded part of the pipe from the outer surface to raise the temperature to a construction temperature. The rapid cooling is to rapidly cool the inner surface in the vicinity of the welded part by supplying cooling water into the pipe. The heating and the rapid cooling are repeated twice or more. A method for construction management includes determining whether construction has been executed properly based on a maximum value of a lowering rate of an outer surface temperature of the pipe when the cooling water is supplied for the rapid cooling of the inner surface and a thickness of the pipe in a measuring position of the outer surface temperature.

    摘要翻译: 改善管道中的残余应力的方法包括通过管道加热后内表面的快速冷却来改善内表面与压缩方向的残余应力。 加热是从外表面加热管的焊接部附近,将温度升高到施工温度。 快速冷却是通过向管道中供应冷却水来快速冷却焊接部分附近的内表面。 加热和快速冷却重复两次或更多次。 一种施工管理方法,其特征在于,在供给用于快速冷却内表面的冷却水时,根据管道的外表面温度的降低率的最大值,以及管道的厚度,确定施工是否已正确执行 在外表面温度的测量位置。

    Apparatus for picking up a defective portion replica
    6.
    发明申请
    Apparatus for picking up a defective portion replica 审中-公开
    用于拾取缺陷部分副本的装置

    公开(公告)号:US20060104784A1

    公开(公告)日:2006-05-18

    申请号:US09790879

    申请日:2001-02-23

    IPC分类号: B65G7/12

    摘要: There is provided an apparatus for picking up a defective portion replica that can pick up a replica with high accuracy and positively even from a surface of a structure in the water. Within a container part provided at a leading end of a replica pickup part is displaced a deformable member, such as a porous expansion member, which is excellent in adhesion with a replica and which deforms when a replica material is poured into a gap between a surface of a structure and the deformable member. The replica material from the replica material supply nozzle is poured into the gap between the surface of a structure and the porous expansion member and the replica is recovered by making use of adhesion with the porous expansion member.

    摘要翻译: 提供了一种用于拾取可以以高精度从而从水中的结构表面积极地拾取副本的缺陷部分副本的装置。 在设置在复制拾取部件的前端的容器部分内,使可变形构件(例如多孔膨胀构件)移位,该可变形构件与复制件的粘附性优异,并且当将复制材料注入到表面 的结构和可变形构件。 将来自复制材料供应喷嘴的复制材料注入到结构表面和多孔膨胀构件之间的间隙中,并通过利用与多孔膨胀构件的粘附力来回收复制品。

    Fuel assembly
    7.
    发明授权
    Fuel assembly 有权
    燃油组件

    公开(公告)号:US06728329B2

    公开(公告)日:2004-04-27

    申请号:US10156798

    申请日:2002-05-30

    IPC分类号: G21C3326

    摘要: A fuel assembly having a plurality of fuel rods arranged in a square lattice array. The fuel rods include a plurality of short-length fuel rods each having a fuel active length shorter than that of each of remaining ones of the fuel rods. At least one water rod is arranged in a region in which one or more of the fuel rods are arrangeable in the array, and a plurality of fuel spacers are provided at a plurality of positions in the axial direction for holding the plurality of fuel rods and the at least one water rod, with mutual radial intervals therebetween being kept immovable. The plurality of short-length fuel rods include at least one first short-length fuel rod arranged in the outermost peripheral region of the square lattice array. Each of the plurality of fuel spacers include a plurality of cylindrical members.

    摘要翻译: 一种燃料组件,具有以正方形格子阵列排列的多个燃料棒。 燃料棒包括多个长度短的燃料棒,每个燃料棒的燃料活性长度短于燃料棒中的剩余燃料棒的燃料活性长度。 至少一个水杆布置在其中一个或多个燃料棒可排列成阵列的区域中,并且在轴向上的多个位置处设置多个燃料间隔件,用于保持多个燃料棒, 所述至少一个水杆在其间具有相互径向的间隔保持不动。 多个短长度燃料棒包括布置在正方格子阵列的最外围区域中的至少一个第一短路燃料棒。 多个燃料间隔件中的每一个包括多个圆柱形构件。

    Fuel assembly and nuclear reactor
    8.
    发明授权
    Fuel assembly and nuclear reactor 失效
    燃料装配和核反应堆

    公开(公告)号:US5617456A

    公开(公告)日:1997-04-01

    申请号:US463828

    申请日:1995-06-05

    IPC分类号: G21C3/328 G21C21/00

    CPC分类号: G21C3/328 Y02E30/38

    摘要: The lower end of each of a plurality of fuel rods is supported by a fuel supporting portion of a lower tie plate. The fuel supporting portion includes a plurality of second coolant paths for supplying a coolant from below the fuel supporting portion to a first coolant path defined above the fuel supporting portion and between the fuel rods. The total cross-sectional area of all the second coolant paths is smaller than the cross-sectional area of the first coolant path. A water rod disposed between the fuel rods each includes an ascending tube path having therein a coolant ascending path having a coolant inlet port opening to a region below the fuel supporting portion, for guiding upward the coolant supplied through the coolant inlet port, and a descending tube having therein a coolant descending path having a coolant delivery port opening to said first coolant path, for guiding downward the coolant guided by said coolant ascending path and discharging the coolant through the coolant delivery port to the first coolant path. The descending tube path is so disposed outside the ascending tube path as to define a gap, through which the coolant inside the first coolant path flows, between it and the ascending tube path.

    摘要翻译: 多个燃料棒的每一个的下端由下连接板的燃料支撑部支撑。 燃料支撑部分包括多个第二冷却剂路径,用于将冷却剂从燃料支撑部分下方供应到限定在燃料支撑部分上方和燃料棒之间的第一冷却剂路径。 所有第二冷却剂通道的总截面积小于第一冷却剂通道的横截面面积。 设置在燃料棒之间的水杆各自包括上升管路,其中具有冷却剂上升路径,其具有通向燃料支撑部分下方的区域的冷却剂入口,用于向上引导通过冷却剂入口提供的冷却剂, 其中具有冷却剂下降路径,其具有通向所述第一冷却剂路径的冷却剂输送口,用于向下引导由所述冷却剂上升路径引导的冷却剂并将冷却剂通过冷却剂输送端口排出到第一冷却剂路径。 下降的管道设置在上升管道的外侧,以便限定第一冷却剂路径内的冷却剂在其与上升的管道之间流动的间隙。