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    • 1. 发明专利
    • 原子炉圧力容器及び原子炉圧力容器の冷却方法
    • 核反应堆压力容器和核反应堆压力容器冷却方法
    • JP2015040732A
    • 2015-03-02
    • JP2013171061
    • 2013-08-21
    • 株式会社東芝Toshiba Corp
    • AOKI KAZUYOSHIHIOKI HIDEAKISAITO NOBORUNAKAMARU MIKIHIDEMIHASHI TADAHIROTOBIMATSU TOSHIMIKOMURO MITSUOKAMEI NAOYA
    • G21C9/016G21C9/00G21C13/00
    • Y02E30/31
    • 【課題】通常運転時における断熱性能を確保しつつ、シビアアクシデント時において容器本体の底部を良好に冷却可能な原子炉圧力容器を提供する。【解決手段】実施形態によれば、原子炉圧力容器10の容器本体12は、炉心を収容し、当該炉心の鉛直下側に底部16を有する。原子炉圧力容器10は、容器本体12の外側に間隔をあけて設けられており、底部16との間に内部空間22が形成される外壁20と、シビアアクシデント時において底部16の外側から底部16に向けて水を噴射する噴射ノズル30とを有する。外壁20には、シビアアクシデント時において内部空間22の水蒸気を排出する蒸気排出口26が形成されている。原子炉圧力容器10は、通常運転時において蒸気排出口26を閉じる閉止部材をさらに有する。【選択図】図3
    • 要解决的问题:提供一种能够在严重事故发生时适当地冷却容器主体的底部的核反应堆压力容器,同时确保正常运转时的隔热性能。解决方案根据实施例,容器主体 12的核反应堆容器10中包含反应堆芯,并且包括恰好在反应堆芯下方的底部16。 核反应堆10包括:设置在容器主体12的外侧的距离容器主体12一定距离的外壁20,形成在底部16和外壁20之间的内部空间22; 喷射喷嘴30在严重事故发生时从底部16的外部向底部16喷射水。 在外壁20上形成有从严格事故发生时从内部空间22排出蒸气的蒸汽排气口26.核反应堆压力容器10还包括在正常操作期间关闭蒸汽排气口26的关闭构件。
    • 2. 发明专利
    • In-reactor measurement tube maintenance clamp device
    • 反应器测量管维护夹具装置
    • JP2013156081A
    • 2013-08-15
    • JP2012015710
    • 2012-01-27
    • Toshiba Corp株式会社東芝
    • OZAWA YUSUKEKINUGASA KUNIHIKOMORI HIROSHIMINATO YUKIWATANABE KATSUNOBUADACHI HIROYUKIMIHASHI TADAHIRO
    • G21C15/25G21C17/032
    • B23K37/0533G21C13/032G21C15/25G21C17/032G21C19/19G21C19/207Y02E30/40
    • PROBLEM TO BE SOLVED: To allow work for firmly fixing a measurement tube to a diffuser to be simply performed, and further to allow stress of a weld zone to a support to be reduced.SOLUTION: An in-reactor measurement tube maintenance clamp device comprises: a main body frame 30 having a vertical portion 31 fastened to an outside surface of a diffuser 18 and a horizontal portion 32 perpendicular to the vertical portion 31; a first clamp mechanism having clamps for holding a measurement tube 19; a plurality of clamp operation bolts 37, 38 and 39 that are vertically provided to the horizontal portion 32 of the main body frame 30 and can be rotated by remote operation from right above a reactor core; a wedge mechanism that converts rotation of the plurality of clamp operation bolts 37, 38 and 39 into movement of the clamps in a radial direction of the diffuser 18 and generates clamp force for fixing the measurement tube 19; and a second clamp mechanism having a clamp for holding a support 24, a second clamp operation bolt and a wedge mechanism that converts rotation of the second clamp operation bolt into movement of the clamp in a tangential direction of the diffuser 18 and generates clamp force for fixing the support 24.
    • 要解决的问题:为了简单地执行将测量管牢固地固定到扩散器的工作,并且进一步允许焊接区域对支撑件的应力减小。解决方案:反应器内测量管维护夹紧装置包括 主体框架30具有紧固于扩散器18的外表面的垂直部分31和垂直于垂直部分31的水平部分32; 具有用于保持测量管19的夹具的第一夹紧机构; 多个夹紧操作螺栓37,38和39,其垂直地设置在主体框架30的水平部分32上,并且能够从反应堆堆芯的正上方远程操作地旋转; 楔形机构,其将多个夹紧操作螺栓37,38和39的旋转转换成在扩散器18的径向方向上的夹具的移动,并产生用于固定测量管19的夹紧力; 以及第二夹紧机构,其具有用于保持支撑件24的夹具,第二夹具操作螺栓和楔形机构,其将第二夹具操作螺栓的旋转转换成沿着扩散器18的切线方向的夹具的移动,并产生用于 固定支撑件24。
    • 5. 发明专利
    • Ultrasonic flaw detection device and method
    • 超声波检测装置及方法
    • JP2013242162A
    • 2013-12-05
    • JP2012113786
    • 2012-05-17
    • Toshiba Corp株式会社東芝
    • YAMAMOTO SETSUCHIHOSHI ATSUSHITAKABAYASHI JUNICHIOCHIAI MAKOTOMIHASHI TADAHIRONAGAI SATOSHIADACHI HIROYUKIYAMAMOTO SATOSHI
    • G01N29/04
    • PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection device and method capable of reducing an online inspection time and detecting a defect with high accuracy.SOLUTION: An ultrasonic flaw detection device comprises: a potential difference applying unit 12 that applies a potential difference having any waveform to a probe 11; a drive element switching unit 22 that selectively switches to a piezoelectric element 21 for applying the potential difference; an AD converting unit 23 that acquires waveform data from a signal obtained from each piezoelectric element 21; a surface shape acquiring unit 27 that acquires surface shape data of an inspection object 2; a delay time calculating unit 29 that calculates a delay time of ultrasonic transmission and reception for obtaining a desired refraction angle, when assuming that ultrasonic waves are transmitted to a surface of the inspection object 2 obtained from the shape data by drive elements, as a piezoelectric element group used for flaw detection, determined by considering a surface shape of the inspection object; and a signal synthesizing unit 30 that extracts waveform data of the drive elements from the waveform data of the piezoelectric elements 21, and shifts the waveform data extracted according to the delay time on a time axis to synthesize the shifted waveform data to obtain synthesized waveform data as a flaw detection result.
    • 要解决的问题:提供一种能够降低在线检查时间并以高精度检测缺陷的超声波探伤装置和方法。解决方案:超声波探伤装置包括:电位差施加单元12,其施加具有 到探针11的任何波形; 驱动元件切换单元22,其选择性地切换到用于施加电位差的压电元件21; 从每个压电元件21获得的信号获取波形数据的AD转换单元23; 获取检查对象2的表面形状数据的表面形状获取单元27; 延迟时间计算单元29,当假设超声波被传送到通过驱动元件从形状数据获得的检查对象2的表面时,计算用于获得期望的折射角的超声波发送和接收的延迟时间作为压电 用于探伤的元件组,通过考虑检查对象的表面形状确定; 以及信号合成单元30,从压电元件21的波形数据中提取驱动元件的波形数据,并根据延迟时间在时间​​轴上提取的波形数据进行移位,以合成移位波形数据,得到合成波形数据 作为探伤结果。
    • 6. 发明专利
    • Ultrasonic flaw detector, method and program
    • 超声波检测器,方法和程序
    • JP2013148525A
    • 2013-08-01
    • JP2012010693
    • 2012-01-23
    • Toshiba Corp株式会社東芝
    • CHIHOSHI ATSUSHIYAMAMOTO SETSUNAGAI SATOSHIOCHIAI MAKOTOMIHASHI TADAHIROYAMAMOTO SATOSHIADACHI HIROYUKITAKABAYASHI JUNICHI
    • G01N29/04G01N29/44
    • PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection technique for executing position measurement and sizing of an internal flaw of a welded portion with high accuracy.SOLUTION: An ultrasonic flaw detector comprises: a transmission section 20 for transmitting an ultrasonic beam Ba at a predetermined transmission angle θt from a transmission point 23 of a first base metal 43a to a welded portion 41; a reception section 30 for receiving an ultrasonic echo E from an internal flaw 42 of the welded portion 41 at a predetermined reception angle θr at a reception point 33 of a second base metal 43b; a sensitivity determination section 13 for determining receiver sensitivity of the ultrasonic echo E; a propagation time deriving section 14 for deriving ultrasonic wave propagation time t ranging from the transmission point 23 to the reception point 33; a parameter acquisition section 12 for acquiring a first interval Lt occupied by the first base metal 43a, a welding interval Lw occupied by the welded portion 41 and a second interval Lr occupied by the second base metal 43b out of a segment connecting the transmission point 23 and the reception point 33 as arithmetic parameters; and an arithmetic section 15 for calculating a depth Dd of the flaw 42.
    • 要解决的问题:提供一种用于高精度地执行位置测量和焊接部分的内部缺陷尺寸的超声波探伤技术。解决方案:一种超声波探伤仪,包括:发射部分20,用于在一个 t从第一贱金属43a的传输点23到焊接部分41的预定传输角度; 接收部分30,用于以第一贱金属43b的接收点33以预定的接收角度θ接收来自焊接部分41的内部缺陷42的超声回波E; 用于确定超声回波E的接收机灵敏度的灵敏度确定部分13; 用于导出从发送点23到接收点33的超声波传播时间t的传播时间导出部14; 用于获取由第一基底金属43a占据的第一间隔Lt,焊接部分41占据的焊接间隔Lw和由连接传输点23的部分中的由第二母材43b占据的第二间隔Lr的参数获取部分12 和接收点33作为算术参数; 以及用于计算缺陷42的深度Dd的运算部15。
    • 7. 发明专利
    • Stress calculation device, stress calculation method and program
    • 应力计算装置,应力计算方法和程序
    • JP2014055836A
    • 2014-03-27
    • JP2012200438
    • 2012-09-12
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOOGAWA TAKUYAMIHASHI TADAHIROYAMAOKA TETSUSHI
    • G01L1/00
    • PROBLEM TO BE SOLVED: To provide a stress calculation device etc. capable of accurately and easily obtaining stress.SOLUTION: In the stress calculation device of the embodiment, a proportion storage part 12 stores therein a plurality of proportions of stress which are generated at evaluation points of a plurality of partial element models different in shape of a structure in accordance with an external force caused to act on boundaries of the partial element models. A boundary force calculation part 21 calculates, as boundary forces, loads generated in portions located on boundaries of the partial element models in an entire model of the structure. A coefficient calculation part 22 obtains, as a coefficient, a proportion corresponding to the structure using the plurality of proportions stored in the proportion storage part 12. An evaluation point stress calculation part 23 integrates the boundary forces obtained by the boundary force calculation part 21 and the coefficient obtained by the coefficient calculation part 22 to calculate stress generated at evaluation points of the structure.
    • 要解决的问题:提供能够准确且容易地获得应力的应力计算装置等。解决方案:在本实施方式的应力计算装置中,比例容纳部12存储在评价中产生的多个应力比例 根据导致作用于部分元素模型的边界的外力,结构形状不同的多个部分元素模型的点。 边界力计算部分21在结构的整个模型中计算作为边界力产生的位于部分元素模型的边界上的部分。 系数计算部22使用存储在比例存储部12中的多个比例,求出与结构对应的比例作为系数。评价点应力计算部23将边界力计算部21获得的边界力与 由系数计算部分22获得的系数来计算在结构的评估点处产生的应力。
    • 8. 发明专利
    • Method and apparatus for repairing piping for jet pump measurement
    • 用于维修喷水泵测量的管道的方法和装置
    • JP2013152106A
    • 2013-08-08
    • JP2012012099
    • 2012-01-24
    • Toshiba Corp株式会社東芝
    • MINATO YUKIKINUGASA KUNIHIKOMORI HIROSHIYAMAMOTO SATOSHIADACHI HIROYUKIMIHASHI TADAHIROWATANABE KATSUNOBUKATAYAMA YOSHINORIMATSUKAWA KOZUEMIYAMURA SATOSHI
    • G21C19/02G21C15/25
    • G21C19/207G21C13/032G21C15/25G21C17/032G21C19/19Y02E30/40Y10T29/49238
    • PROBLEM TO BE SOLVED: To provide a method for repairing piping for jet pump measurement, with which a break event that occurs in a lower portion of a jet pump in which piping for measurement is installed in a horizontal direction under water can be handled and repair work in a narrow part is facilitated.SOLUTION: According to an embodiment, a method for repairing piping for jet pump measurement is provided for repairing a broken part of piping for measurement installed in a lower portion of a jet pump which is provided in reactor water within a reactor pressure vessel in a horizontal direction. The method includes a support member fixing step S1 for fixing a support member to the jet pump in the vicinity of the remaining piping for measurement, a connector mounting step S2 for mounting a measurement piping connector, to the support member, equipped with a piping repair pipe with which connecting pipes are fitted into both ends, after the support member fixing step S1, and a connection step S3 for connecting the remaining piping for measurement and the connecting pipes by using the measurement piping connector after the connector mounting step S2.
    • 要解决的问题:为了提供一种用于维修喷射泵测量的管道的方法,其中在水下在水平方向上安装测量管道的喷射泵的下部发生断裂事件,可以进行处理和修理 解决方案:根据一个实施例,提供了一种修复用于喷射泵测量的管道的方法,用于修复安装在设置在反应器水中的喷射泵的下部中的用于测量的管道的断裂部分 在反应堆压力容器内沿水平方向。 该方法包括:支撑构件固定步骤S1,用于将支撑构件固定在剩余的测量管道附近的喷射泵附近,将用于安装测量管道连接器的连接器安装步骤S2连接到配备有管道修复的支撑构件 在支撑部件固定步骤S1之后,将连接管装配到两端的管道,以及在连接器安装步骤S2之后使用测量管道连接器连接剩余的测量管道和连接管道的连接步骤S3。
    • 9. 发明专利
    • Ultrasonic flaw detector and method thereof
    • 超声波检测器及其方法
    • JP2013040924A
    • 2013-02-28
    • JP2012158056
    • 2012-07-13
    • Toshiba Corp株式会社東芝
    • YAMAMOTO SETSUMIURA TAKAHIROCHIHOSHI ATSUSHIOCHIAI MAKOTONAGAI SATOSHIWATABE KAZUMIMIHASHI TADAHIROADACHI HIROYUKIYAMAMOTO SATOSHITAKABAYASHI JUNICHIOTSUKA MASARU
    • G01N29/06
    • G01N29/043G01N29/262G01N2291/056G01N2291/2638
    • PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detector capable of obtaining high detection accuracy without depending upon a surface shape of an object to be inspected, and further to provide a method thereof.SOLUTION: An ultrasonic flaw detector comprises: an ultrasonic wave probe 11 that causes an ultrasonic wave to be made incident to an object to be inspected and receives the reflected ultrasonic wave from the object to be inspected; a driving element controlling section 13 that causes the ultrasonic wave to be made incident to the ultrasonic wave probe 11 and drive-controls a plurality of ultrasonic wave elements so as to control the reflected ultrasonic wave from the ultrasonic wave probe 11; and an operating section 18 that, by using an angle of refraction when the ultrasonic wave is made incident to the object to be inspected, an incident position of the ultrasonic wave on a surface of the object to be inspected and a surface shape of the surface of the object to be inspected at the incident position, obtains an incident angle at which the ultrasonic wave is made incident to the incident position and obtains the plurality of ultrasonic wave elements to be driven based on the incident position and the incident angle.
    • 要解决的问题:提供一种能够在不依赖于待检查对象的表面形状的情况下获得高检测精度的超声波探伤仪,并进一步提供其方法。 解决方案:一种超声波探伤仪,其特征在于,包括:超声波探头11,使超声波入射到被检查物体,并从被检查物体接收反射的超声波; 驱动元件控制部13,其使超声波入射到超声波探头11,并驱动控制多个超声波元件,以便控制来自超声波探头11的反射超声波; 以及操作部18,当使超声波入射到被检查物体时,通过使用折射角,将超声波的入射位置与待检查物体的表面和表面的表面形状 在入射位置检测出被检查对象的物体,得到超声波入射到入射位置的入射角,并根据入射位置和入射角度求出被驱动的多个超声波元件。 版权所有(C)2013,JPO&INPIT