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11. 发明专利

JPS6230953A PIPING INSPECTION DEVICE 失效
公开(公告)号：JPS6230953A
公开(公告)日：1987-02-09
申请号：JP16984785
申请日：1985-08-02
申请人： HITACHI LTD
发明人： SASAKI TSUKASA , NARUSE AKISUKE , TAKAKU KAZUO
IPC分类号： G01N29/04 , G01N29/26
摘要： PURPOSE:To achieve a smooth flaw detection even for a bend along with the miniaturization of the equipment, by providing a curve copying arm at the tip of a flaw detection arm comprising a multi-stage cylinders is such a manner as to permit free turn relatively to scan the curved surface of a piping for flaw detection. CONSTITUTION:A guide rail A is set on the side of a straight tube 1 of the welding line 3 between the straight tube 1 and an elbow 2 and a moving body 5 is placed thereon 4. A pinion 7 to be driven with a motor for the moving body 5 is meshed with a rack 6 to run the moving body 5 in the circumferential direction of the straight tube 1 on the rail 4. A flaw detection arm 8 comprising multi-stage cylinders is mounted on the moving body 5 with a pin 14 in such a manner as to be movable freely with respect to the moving body 5. A probe holding section 9 is provided at the tip of the arm 8 in such a manner as to turn freely with respect to a guide bar through a pin 15 while a probe 10 is provided at the tip of the holding section 9 in such a manner as to turn freely with respect to the holding section 9 by a gimbals mechanism 11. When an inspection is performed near the welding line 3, the circumferential scanning on the probe 10 is done by running the moving body 5 on the rail 4 while the axial scanning is performed with the extension or contraction of the arm 8 thereby accomplishing a smooth flaw detection.

12. 发明专利

JPS61153562A ULTRASONIC FLAW DETECTING DEVICE 失效
公开(公告)号：JPS61153562A
公开(公告)日：1986-07-12
申请号：JP27359684
申请日：1984-12-27
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： SASAKI TSUKASA , NARUSE AKISUKE , TAKAKU KAZUO , KIKUCHI TOSHIICHI
IPC分类号： G01N29/04 , B23Q9/00 , G01N29/26 , G01N29/265
摘要： PURPOSE:To spot a fault position with high precision even if an object body has a curved tube part or unevenness such as weld strain by detecting the specific angle of a flaw detection arm supported pivotally on a moving body and calculating the position of flaw detection. CONSTITUTION:The rotary encoder of the moving body which moves along the outer periphery of a straight tube 1a under the guidance of a guide rail 2 detects the angle alpha of oscillation of the flaw detection arm 4 equipped with an ultrasonic probe 6 atop while supported pivotally on the moving body 13 through a pin 14. Vertex positions of the triangle formed of the weld line 13 at the boundary between the straight tube 1a and curved tube 1b and the straight line connecting the center of curvature of the arm 4 and tube 1b and the contact point of the contactor 6 with the tube 1b, etc., are calculated on the basis of the angle alpha, thereby deciding on a fault position with high precision. Further, the angle beta of inclination of the probe 6 is detected by a rotary encoder provided to a probe holding part 5 and even if the object body has unevenness such as weld strain, etc., the fault position is spotted with high precision.

13. 发明专利

JPS61117490A Device for remodeling and inspecting inside of pressure vessel for nuclear reactor 失效
标题翻译：用于重核和检查用于核反应堆的压力容器内部的装置
公开(公告)号：JPS61117490A
公开(公告)日：1986-06-04
申请号：JP23841784
申请日：1984-11-14
申请人： Hitachi Ltd
发明人： ITO YASUSHI , YAMAGUCHI MAKOTO , NARUSE AKISUKE
IPC分类号： G21C17/003 , G21C17/00 , G21C19/02 , G21C19/20 , G21F3/00

14. 发明专利

JPS6195288A High-temperature water reverse-inflow relaxing feedwater sparger nozzle 失效
标题翻译：高温水反向放水式送水式喷头喷嘴
公开(公告)号：JPS6195288A
公开(公告)日：1986-05-14
申请号：JP21625384
申请日：1984-10-17
申请人： Hitachi Ltd
发明人： WADA NORIAKI , SAITO HIDEYO , NARUSE AKISUKE
IPC分类号： G21C15/02 , G21C19/28
CPC分类号： Y02E30/31

15. 发明专利

JPS6156998A Neutron flux monitor housing and method of repair of neutronflux monitor housing 失效
标题翻译： NEUTRON FLUX监视器壳体和中性流量监视器壳体修复方法
公开(公告)号：JPS6156998A
公开(公告)日：1986-03-22
申请号：JP17835784
申请日：1984-08-29
申请人： Hitachi Ltd
发明人： HIGUCHI SHINICHI , NARUSE AKISUKE , MIYAHARA TSUMORU , MIURA SHIZUNAMI
IPC分类号： G21C17/10 , G21C19/20

16. 发明专利

JPS60128389A INSERTING SECTION STRUCTURE OF PRESSURE VESSEL FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS60128389A
公开(公告)日：1985-07-09
申请号：JP23626583
申请日：1983-12-16
申请人： HITACHI LTD
发明人： WATANABE YOSHIO , SAITOU HIDEYO , NARUSE AKISUKE
IPC分类号： G21C13/00

17. 发明专利

JPS6015556A TRACK FOR CONTAINER MONITORING OR INSPECTING APPARATUS 失效
公开(公告)号：JPS6015556A
公开(公告)日：1985-01-26
申请号：JP12338783
申请日：1983-07-08
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASANO KUNITAKA , KIMURA YUTAKA , NARUSE AKISUKE , SASAKI TSUKASA , TAKAKU KAZUO
IPC分类号： G21C17/003 , B23Q9/00 , G01N29/04 , G01N29/265 , G21C17/00
摘要： PURPOSE:To make it possible to absorb a moving amount due to thermal expansion by the rotation of a connection rod by escaping thermal expansion to the radius direction of a track in a circumferential direction into a continuous ring form while supporting the same by three or more of connection rods. CONSTITUTION:A track 5 and a container 7 are connected by a plurality of connection rods 18 each having pins 19, 20 provided to both ends thereof. Both end pins 19, 20 are at right angles to the surface containing the track 5 and each connection rod 18 is attached in a freely rotatable manner within the plane passing the center of the track 5. When the track 5 reaches a position shown by the numeral 5' by thermal expansion, each connection rod 18 is rotated around the pin 20 to reach a position shown by the numeral 18' and absorbs the thermal expansion of the track 5. If the track 5 has sufficient rigidity in a constant atmospheric temp. and supported by three or more of the connection rods 18, the track 5 is held without being moved by the restriction of the connection rods each forming a direction different from external force even if any external force is applied. In addition, the center of the track is kept same and high reproducibility, safety, reliability and soundness are obtained.

18. 发明专利

JPS59133456A Supporting structure of one-body type track in nuclear reactor pressure vessel 失效
标题翻译：核反应堆压力容器中单体轨道的支撑结构
公开(公告)号：JPS59133456A
公开(公告)日：1984-07-31
申请号：JP736483
申请日：1983-01-21
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： ASANO KUNITAKA , NARUSE AKISUKE , TAKAKU KAZUO , SASAKI TSUKASA
IPC分类号： G01N27/82 , G01N29/04 , G01N29/265 , G21C17/003
CPC分类号： G01N29/265 , G01N2291/2695
摘要： PURPOSE:To improve the position precision of a one-body type track by hanging and holding a longitudinal track and a support with a supporting member supporting the empty weight of the one-body type track provided to a vessel side. CONSTITUTION:A hook 14, a bridge 12 and a bracket 11 are engaged at the vicinity of the top end side of the longitudinal track 3, and the bracket 11 is welded to a nuclear reactor pressure vessel 2 and supported thereby. The one end side of a bracket 10 is engaged with upper end side of a support 4, and the other end side is welded to the vessel 2 and supported thereby. A vibration stopper 8 and a bracket 13 are engaged with a support 17, and the one end side of the bracket 13 is welded to the vessel 2 and supported thereby. The one-body type track 1 composed of circular tracks 15, 16, a longitudinal track 3 and the supports 4, 17, 17', etc. is hung by the vessel 2 to support the empty weight. Since the brackets 10, 11, 13 are formed to fixed lengths respectively, the track 1 is positioned acculately with respect to the vessel and reproduced accurately.
摘要翻译：目的：通过悬挂和保持纵向轨道和支撑件来提高单体轨道的位置精度，支撑构件支撑提供给船侧的单体型轨道的空重。构成：在纵向轨道3的顶端侧的附近，钩14，桥12和支架11接合，支架11被焊接到核反应堆压力容器2并由其支撑。支架10的一端侧与支撑件4的上端侧接合，另一端侧焊接在容器2上并由其支撑。振动止动器8和支架13与支撑件17接合，并且托架13的一端侧焊接到容器2并由其支撑。由圆形轨道15,16，纵向轨道3和支撑件4,17,17'等构成的单体轨道1被船2悬挂以支撑空重。由于支架10,11,13分别形成为固定长度，所以轨道1相对于容器被准确地定位并被精确地再现。

19. 发明专利

JPS582651A DISTANCE AMPLITUDE CORRECTION DEVICE 失效
公开(公告)号：JPS582651A
公开(公告)日：1983-01-08
申请号：JP9966181
申请日：1981-06-29
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MAEZONO TOSHIROU , TATEYAMA MASARU , NARUSE AKISUKE
IPC分类号： G01N29/44 , G01N29/40
摘要： PURPOSE:To make it possible to realize accurately the reproduction of the same distance amplitude correction curves by providing functions of calibration mode and actual flaw detection mode as well as functions of preserving and reproducing correction curves for distance amplitude. CONSTITUTION:A microcomputer 12 is made to take in traveling distance from a traveling distance counter 10 and control value that is added to D/A conversion circuit 7 respectively. A traveling distance value and control value taken in are added to the data, and most suitable control value for each traveling distance is sought by interpolation and it is written in a digital memory 8. Then a memory switch on the control panel 13 is read off and it is stored in a memory 9. In a reproduction mode, an identification code is sent on the panel 13 with a switch for a curve reproduction of which is desired from a plurality of distance amplitude correction curves that are beforehand stored in a memory 9. With this arrangement distance amplitude correction curve is exactly reproduced.

20. 发明专利

JPS57203952A AUTOMATIC ULTRASONIC FLAW DETECTOR FOR STATVOLT 失效
公开(公告)号：JPS57203952A
公开(公告)日：1982-12-14
申请号：JP8819281
申请日：1981-06-10
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KANDA KIMIO , NARUSE AKISUKE
IPC分类号： G21C17/003 , G01N29/04 , G01N29/265
摘要： PURPOSE:To conduct all operations automatically by conducting drivings in the axial and circumferential directions of a statvolt independently from each other in such a manner that the driving in the axial direction is conducted by a motor mounted on a rotary disc while the driving in the circumferential direction is conducted by a motor mounted on a fixed block. CONSTITUTION:A fixed block 6 is fixed by using the thread of a statvolt 1. A rotary disc 9 can rotate together with the insertion rod 8 of an ultrasonic probe, transmitting the rotation of a circumferential-direction driving motor 10 to the insertion rod 8. The disc 9 is fitted with an axial-direction driving motor 11, whereby the insertion rod 8 is driven vertically. Ultrasonic flaw detectors 13 and 14 give a pulse voltage to the ultrasonic probe 3, amplifying and delivering reflected waves or the like from a flaw. Drive controlling devices 15 and 16 control the rotation of the motors 10 and 11. An addition circuit 19 conducts the addition of an ultrasonic wave signal and a rotationl-angle signal and supplies the result to the axis Y of an X-Y recorder 20. An axial-direction position detector 18 detects the position in the axial direction of the insertion rod 8 and supplies the same to the axis X of the recorder 20 through the device 16.

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