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1. 发明专利

JP2004170399A Array sensor for transmitting / receiving ultrasonic waves, and apparatus and method for ultrasonic flaw detection 有权
标题翻译：用于发射/接收超声波的阵列传感器，以及用于超声波检测的装置和方法
公开(公告)号：JP2004170399A
公开(公告)日：2004-06-17
申请号：JP2003369772
申请日：2003-10-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIMA MASAHIRO , KONO NAOYUKI , KOIKE MASAHIRO , ADACHI KOICHI , SHIMURA TAKAO , SENOO MAKOTO , MATSUI TETSUYA
IPC分类号： G01N29/24 , G01N29/04 , G01N29/26 , G21C17/003 , G21C19/02 , G01N29/10
CPC分类号： G01N29/069 , G01N2291/0258 , G01N2291/0427 , G01N2291/044 , G01N2291/2695
摘要： PROBLEM TO BE SOLVED: To detect diffracted waves in an object to be inspected, and thereby stabilizing the detection sensitivity of an ultrasonic flaw detector which carries out ultrasonic flaw detection processes and robustly keeping stability. SOLUTION: In the method, a focus point 17 in an acoustic focusing field is scanned electronically within a range including 30 degrees for half of the sum of the transmission angle value of ultrasonic waves 16 and a receiving angle value of the diffracted waves 18 in relation to the object material to be inspected 21, by using a transmitting transducer array 15 and a receiving transducer array 19 incorporated in a common sensor 14; then an edge section of a flaw 22 is detected from the received diffracted wave 18, as a result; and the detection of the flaw 22 and sizing of the flaw 22 in the depth direction are carried out. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：检测待检查物体中的衍射波，从而稳定超声波探伤仪的检测灵敏度，该超声波探伤仪进行超声波探伤过程并坚固地保持稳定性。解决方案：在该方法中，在超声波16的透射角值的和的一半和衍射波的接收角度值的一半的范围内，在包括30度的范围内电声扫描声聚焦场中的焦点17 通过使用并入公共传感器14的发送换能器阵列15和接收换能器阵列19，相对于被检查物体21，则从接收的衍射波18检测出缺陷22的边缘部分，结果是，并且进行缺陷22的检测和深度方向上的缺陷22的尺寸调整。版权所有（C）2004，JPO

2. 发明专利

JP2002071537A APPARATUS FOR COLLECTING DEFECTIVE REPLICA 失效
公开(公告)号：JP2002071537A
公开(公告)日：2002-03-08
申请号：JP2000263597
申请日：2000-08-31
申请人： HITACHI LTD
发明人： HIRANO AKIHIKO , SATO NAOTO , SAKATA HIROSHI , SUGANO SATOSHI , SHIMURA TAKAO , ADACHI KOICHI , SAITO NOBORU
IPC分类号： G01B1/00 , G01N1/28 , G21C17/00 , G21C17/017 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for collecting defective replicas which is made possible to highly accurately and surely collect replicas even from the surface of a structure in water. SOLUTION: A deforming member such as a void-like expansion member 17 or the like is arranged in a container part 14 set to a leading end of a replica-collecting part 40. The deforming member is superior in adhesion to the replica and is deformed when a replica material is injected to the surface of the structure 22. The replica material is injected from a replica material supply nozzle 18 to between the surface of the structure 22 and the void-like expansion member 17. The replica is collected with the utilization of the adhesion to the void-like expansion member 17.

3. 发明专利

JP2001241604A GAS RECOVERING DEVICE 失效
公开(公告)号：JP2001241604A
公开(公告)日：2001-09-07
申请号：JP2000048521
申请日：2000-02-25
申请人： HITACHI LTD
发明人： WATANABE ATSUSHI , YOKOI HIROTO , UETAKE NAOTO , SHIMURA TAKAO , OMOTE TATSUYUKI
IPC分类号： G21C19/02 , F22B37/02 , G21F9/02
摘要： PROBLEM TO BE SOLVED: To ensure a radioactive concentration in air at a low level, by recovering at an efficient rate gases including unseparated gas or residual gas, etc., which are generated in cutting or machining work of a reactor core internal structure. SOLUTION: The internal pressure of a gas-liquid separator 4 is reduced in accordance with the output of the pump 3 which draws gas-liquid mixed water from a working place, so an evacuation pump 5 is installed to reduce the pressure of a gas discharge system in the succeeding stage lower than the internal pressure of the separator 4. Gases such as unseparated gas or a gas failed to be drawn are recovered by an electrically conductive cover 12 for covering a gas-generation zone. Thus a gas-water separation effect not depending on the output of the pump 3 can be ensured, and a radioactive concentration in the air can be ensured, a radioactive concentration in the air can be maintained at low level to prevent exposure of the personnel.

4. 发明专利

JPH1123791A GAS RECOVERY DEVICE 失效
公开(公告)号：JPH1123791A
公开(公告)日：1999-01-29
申请号：JP17805197
申请日：1997-07-03
申请人： HITACHI LTD
发明人： MURASE MICHIO , NOYA AKIHIKO , SHIMURA TAKAO , ICHIKI YOICHI , HATTORI NORIAKI
IPC分类号： G21C19/02 , G21F9/02 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a gas recovery device that can efficiently and economically recover a gas released into the water of a pool. SOLUTION: A gas released from a plasma torch 24 into a pool 11 is recovered by a gas recovery hood 30 comprising an outside hood 31 and an inside hood 33 and is passed through a duct 41, and injurious materials in the gas are removed by a gas treater 50. The plasma torch 24 and the gas recovery hood 30 are fixedly supported by a supporting pole 23 and are moved by a cart 21 and a drive unit 22. Gas bubbles leaking from the inside hood 33 are recovered by the outside hood 31.

5. 发明专利

JPH09178883A REACTOR INTERIOR REMOTE REPAIRING DEVICE 失效
公开(公告)号：JPH09178883A
公开(公告)日：1997-07-11
申请号：JP33868095
申请日：1995-12-26
申请人： HITACHI LTD
发明人： YOSHIDA TOMOYA , OMORI SHINYA , MUTO HIROSHI , SAITO HIDEYO , SHIMURA TAKAO , SAKURAI TAKASHI
IPC分类号： G21C19/02 , G21C17/003
摘要： PROBLEM TO BE SOLVED: To conduct the work in a wide range as well as the work at the upper section. SOLUTION: This device is provided with a work unit 90 inserted into a reactor pressure vessel 1 through the lattice of an upper lattice plate and implementing various work of component members installed in the reactor pressure vessel 1 via remote control and a work device holding the work unit 90. The work device is provided with a hollow stanchion body section 20, a parallel link arm 50 stored in the hollow section of the stanchion body section 20 when the work device is carried in and extended in the horizontal direction at the time of work, and a work arm 70 provided at the tip of the parallel link arm 50 and holding the work unit 90. The work arm 70 provided at the tip of the parallel link arm 50 is formed expandably/shrinkably in the vertical direction, a rotatable turntable 80 is provided at the upper section of the work arm 70, and the work unit 90 is fitted to the turntable 80.

6. 发明专利

JP2582950B2 失效
公开(公告)号：JP2582950B2
公开(公告)日：1997-02-19
申请号：JP9210491
申请日：1991-04-23
申请人： HITACHI LTD
发明人： SATO MORIO , KIKUCHI KOJI , OOMORI SHINYA , SHIMURA TAKAO , YOSHIDA TOMIJI , HANEDA MITSUAKI
IPC分类号： B23K9/00 , B23K10/00 , H05H1/36

7. 发明专利

JPH0751947A WORKING DEVICE FOR VERTICAL TYPE PIPE BODY 失效
公开(公告)号：JPH0751947A
公开(公告)日：1995-02-28
申请号：JP20606493
申请日：1993-08-20
申请人： HITACHI LTD
发明人： KAJIYAMA SHIGERU , SUZUKI MASANORI , FUNAMOTO TAKAO , FURUKAWA HIDEYASU , SHIMURA TAKAO
IPC分类号： B23H9/00 , G21C13/00
摘要： PURPOSE:To provide a device which is capable of applying electric discharge machining to the inner surface of a thin and long vertical type pipe body through remote control. CONSTITUTION:A working device for a vertical pipe body comprises an electric discharge part 12; an upper drive part 11 to drive a discharge electrode; two aligning parts 13 and 14 to align the electric discharge machining part and the upper drive part from above and below; a lower drive part 18 peripherally and axially drive together with a guide part to guide the mechanism parts; a waste liquid collecting part 17 to collect waste liquid and machining residues; a relay part 16 to relay an electric system, a water system, and an air system; a discharge source part to control a discharge voltage; and a drive control part 20 to control drive of each drive part. This constitution enables electric discharge machining of the arbitrary position of a thin and long vertical type pipe body through remote control. Further, a consumption of an electrode is reduced and a machining range is increased.

8. 发明专利

JPH04123972A PIPE INSPECTION AND REPAIR ROBOT 失效
公开(公告)号：JPH04123972A
公开(公告)日：1992-04-23
申请号：JP24264590
申请日：1990-09-14
申请人： HITACHI LTD
发明人： OMORI SHINYA , SHIMURA TAKAO , YOSHIDA TOMIJI
IPC分类号： B61B13/10 , B25J5/00
摘要： PURPOSE:To drive a robot so stably as well as to promote the standardization of construction and structure in the robot and its miniaturization and lightweightiness by installing a traveling mechanism traveling along two rails laid down in a pipeline. CONSTITUTION:This pipe inspection and repair robot, being suitable for a seawater cooling water pipeline 1 being installed in space between a turbine building 2 and a freeing port of a nuclear power plant is composed of a traveling mechanism 5 for travel along two rails 4 laid down in the pipeline 1 and a robot body 10 whose both sides are supported by the traveling mechanism 5. The robot body 10 is provided with a small camera (inspection mechanism) 6 in the front part and a detecting mechanism 7 with an ultrasonic probe in the rear part respectively, a repairing mechanism 8 with a coating injection nozzle at the tip and an optical reader 9 counting a marking point installed in one side of the two rails 4 at a constant interval, and it is connected to an operating chamber 11 provided with a control panel 12, a monitor board 13 and a coating solution pump 14, etc., by a cable and a hose 15 or the like.

9. 发明专利

JP2003185783A IN-CORE VISUAL INSPECTION APPARATUS 审中-公开
公开(公告)号：JP2003185783A
公开(公告)日：2003-07-03
申请号：JP2001387778
申请日：2001-12-20
申请人： HITACHI LTD
发明人： SENOO MAKOTO , MATSUI TETSUYA , BABA JUNJI , SHIMURA TAKAO
IPC分类号： G01B11/00 , G01B11/24 , G01B11/30 , G21C17/003 , G21C17/08
摘要： PROBLEM TO BE SOLVED: To provide an in-core visual inspection apparatus being excellent in operability and stability inside a core vessel and making it possible to easily obtain pictures of good quality. SOLUTION: A weight 10 reaching the bottom of the core is suspended from the top of a reactor pressure vessel 40 by means of a weight lifting rope 20 and a camera mounting mechanism 30 is supported against the rope 20 in such a manner as to be capable of vertical movement and rotational movement. Images of any part of the inside of the pressure vessel can be picked up by a TV camera provided in the camera mounting mechanism 30 to enable visual inspection using the in-core images. Since the rope 20 serves as a guide, stable images can be picked up. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2001096366A REMOTE OPERATION DEVICE 失效
公开(公告)号：JP2001096366A
公开(公告)日：2001-04-10
申请号：JP27180299
申请日：1999-09-27
申请人： HITACHI LTD
发明人： HOSODA YUJI , SHIMURA TAKAO
IPC分类号： B23K9/10 , B23K10/00 , B25J15/04 , B25J15/08 , B26F3/00 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a remote operation device which allows cutting off a cut piece through one-time remote grasping operation of the object, and also compatible of remote grasping with cutting operation through a single manipulator or a crane, thus resulting in high efficiency cutting operation. SOLUTION: This remote operation device is equipped with a grasping device to grasp the object, a transferring device to locate the grasping device into an arbitrary special position, a cutting tool, a positioning structure of the cutting tool which is set-up on the grasping device and relatively positions the cutting tool against the grasping device, a recovery unit which collects cut scraps or cut products and a positioning device for the recovery unit for relatively positioning the recovering device against the cutting tool, in which the positioning structure of the cutting tool has flexibility of cutting by switching the direction of cutting against the object continuously more than two directions.

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