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1. 发明专利

JP2013130493A Jet pump and bolt fixing device of jet pump beam 有权
标题翻译：喷射泵浦喷枪和螺栓固定装置
公开(公告)号：JP2013130493A
公开(公告)日：2013-07-04
申请号：JP2011280714
申请日：2011-12-22
申请人： Toshiba Corp , 株式会社東芝
发明人： FUJITA TOMOKI , MOTOYOSHI YUUICHI , SAEKI KIYOBUMI , KINUGASA KUNIHIKO , SAKAI YASUHIRO , HATAKE HARUHIKO , MORI HIROSHI , MINATO YUKI , ITO AKIRA , MATSUKAWA KOZUE
IPC分类号： G21C15/25
CPC分类号： F16B39/10 , F04F5/44 , F16B37/14 , F16B39/282 , G21C15/25 , G21C19/02 , G21C19/20 , Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a bolt fixing device of a jet pump beam, for easily and surely stopping rotation of a head bolt of the jet pump beam when installing an inlet mixer.SOLUTION: According to an embodiment, the bolt fixing device includes: a lock cap 36 which is fitted to a polygonal head part 32 of a head bolt 30, is movable in a vertical axis direction and is rotatable integrally with the head bolt 30; a body housing 37 which houses the lock cap 36 and is installed on an upper surface of a jet pump beam 27; and an elastic member 40 which is provided below the lock cap 36 inside the body housing 37 and imparts elastic force vertically upwards to the lock cap 36. A bolt fixing device 35 pushes up the lock cap 36 by the elastic force of the elastic member 40, engages a plurality of upper surface teeth formed on an upper surface of a flange of the lock cap 36 with a plurality of lower surface teeth formed on a lower surface of a locking flange of the body housing 37, and fixes the head bolt 30 of the jet pump beam 27.
摘要翻译：要解决的问题：提供喷射泵梁的螺栓固定装置，用于在安装入口混合器时容易且可靠地停止喷射泵梁的头螺栓的旋转。解决方案：根据一个实施例，螺栓固定装置包括：安装在头螺栓30的多边形头部32上的锁盖36能够在垂直轴方向上移动，并与头螺栓30一体转动; 容纳锁帽36并安装在喷射泵梁27的上表面上的主体壳体37; 以及弹性构件40，其设置在主体壳体37内的锁定盖36的下方，并且向弹性构件40的弹力向垂直向上施加弹性力。螺栓固定装置35通过弹性构件40的弹力推动锁定帽36 与形成在锁盖36的凸缘的上表面上的多个上表面齿接合形成在主体壳体37的锁定凸缘的下表面上的多个下表面齿，并将头螺栓30固定在喷射泵梁27。

2. 发明专利

JP2005081368A Underwater laser repair welding equipment and underwater laser repair welding method 有权
标题翻译：水下激光修复焊接设备和水下激光修复焊接方法
公开(公告)号：JP2005081368A
公开(公告)日：2005-03-31
申请号：JP2003314486
申请日：2003-09-05
申请人： Chubu Electric Power Co Inc , Japan Atom Power Co Ltd:The , Tokyo Electric Power Co Inc:The , Toshiba Corp , 中部電力株式会社 , 日本原子力発電株式会社 , 東京電力株式会社 , 株式会社東芝
发明人： SUGIYAMA SHINTARO , KOBAYASHI HIDETOSHI , TERAKADO TAKESHI , TAMURA MASAKI , MAKINO YOSHINOBU , KONO WATARU , TAKAHASHI HIDENORI , MOTOYOSHI YUUICHI
IPC分类号： B23K26/12 , B23K26/14
摘要： PROBLEM TO BE SOLVED: To provide underwater laser repair welding equipment and an underwater laser repair welding method capable of applying laser repair welding to an underwater structure having a crack with an opening part on the surface, and capable of sealing the opening part on the surface of the crack, and to provide an underwater laser repair welding method. SOLUTION: In the underwater laser repair welding equipment where an underwater welding head connected to a laser oscillator and a shielding gas feed source, and having a feed source and a feed system of welding wire and an optical system condensing laser light is provided, and the part to be welded in an underwater structure is subjected to repair welding: the part of a nozzle 20 fitted to the tip of the underwater welding head 3 is provided with a nozzle central hole 21 applying laser light and feeding shielding gas to the part 34 to be welded in the underwater structure and a precedence hole 22 jetting shielding gas toward the progressing direction of welding separately from the nozzle central hole 21. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供水下激光修补焊接设备和水下激光修补焊接方法，其能够对具有在表面上具有开口部分的裂纹的水下结构施加激光修复焊接，并且能够密封开口部在裂纹的表面，并提供水下激光修补焊接方法。解决方案：在水下激光修补焊接设备中，提供连接到激光振荡器和保护气体进料源的水下焊接头，并且具有馈电源和焊丝馈电系统以及聚焦激光的光学系统在水下结构体中进行焊接的部件进行修补焊接，安装在水中焊接头3的前端的喷嘴20的一部分设置有喷射中心孔21，该喷嘴中心孔21施加激光，并将保护气体供给到要焊接在水下结构中的部分34和与喷嘴中心孔21分开地沿着焊接进行方向喷射保护气体的优先孔22。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JPH08211185A METHOD FOR EXCHANGING CORE SHROUD 失效
公开(公告)号：JPH08211185A
公开(公告)日：1996-08-20
申请号：JP1785495
申请日：1995-02-06
申请人： TOSHIBA CORP
发明人： MASUDA YOICHI , YASUDA TOSHIHIRO , YAMADA YUJI , KINOSHITA MAKOTO , MATSUI YOSHIRO , HAMAMOTO YOSHIO , MOTOYOSHI YUUICHI , KATO MOTOI
IPC分类号： G21C19/02
摘要： PURPOSE: To efficiently exchange core shroud in a short time without depending on the remote control only or without having the problem of radiation exposure. CONSTITUTION: In the vicinity of a shroud support 3 in a reactor pressure vessel 1, a work stage 16 is placed and at the welding part 12 between the lower end of shroud 2 and the upper end of the shroud support 3, a welder 10 is placed. Surrounding the welder 10, an air room wall 25 is fixed to the side wall of the work stage. Divers 23 dive into the work stage 16 to expel water in the air room wall 25 and form an air room 24 and the divers 23 operate the welder 10 to weld the welding part 12. By covering the top of the air room wall 25 with a shield body 18, the divers are protected from radiation 8.

4. 发明专利

JPH10132983A SHROUD FOR ATOMIC REACTOR 失效
公开(公告)号：JPH10132983A
公开(公告)日：1998-05-22
申请号：JP28830096
申请日：1996-10-30
申请人： TOSHIBA CORP
发明人： MOTOYOSHI YUUICHI , TSUMITA KOSAKU , SAKURAI YOSHISHIGE
IPC分类号： G21C15/02 , F16D25/0638 , G21C17/003
摘要： PROBLEM TO BE SOLVED: To form up the shroud for an atomic reactor in such a way that an ultrasonic flaw detection test for the welded part of the shroud for an atomic reactor can accurately be made. SOLUTION: An ultrasonic flaw detection testing guide 14 is provided for a place close to the welded part 13 of the body barrel 12 of the shroud for an atomic reactor, and an ultrasonic flaw detection test device 19 is mounted on the testing guide 14 by way of a rack base 15 and a test guiding rack 16. The testing device 19 is equipped with an ultrasonic flaw detecting sensor 20, and with wheels 17 and 18 running around the peripheral part of the testing guide 14. By this constitution, when an ultrasonic flaw detection test is made, a measuring position from the welded part 13 can thereby be accurately identified, and accuracy in flaw detection can thereby be enhanced.

5. 发明专利

JPH046493A CONTROL ROD FOR REACTOR 失效
公开(公告)号：JPH046493A
公开(公告)日：1992-01-10
申请号：JP10763990
申请日：1990-04-25
申请人： TOSHIBA CORP
发明人： UEDA KIYOSHI , SHIGA SHIGENORI , MOTOYOSHI YUUICHI , TSUMITA KOSAKU , YOSHIOKA RITSUO , TOYOKICHI ISAMU
IPC分类号： G21C7/113 , G21C7/24
摘要： PURPOSE:To enhance a cooling characteristic and also to reduce the cost of manufacture by a construction wherein paired neutron absorber plates each pair of which comprises two of them are built in so that pairs of them are opposed to each other with a necessary gap between them and that water can pass through between them. CONSTITUTION:Each of support arms 14a... and 14b... projects in the direction intersecting perpendicularly the direction of the flow of reactor water running through a gap between paired neutron absorber plates 11a to 13b being opposite to each other. In addition, the lateral side of the gap between each pair of the neutron absorber plates 11a to 13b being opposite to each other is opened except a part having each of the support arms 14a... and 14b.... Accordingly, the neutron absorber plates located outside blades 4a and 4b, e.g. the plates 13a and 13b, are irradiated with a relatively higher neutron flux than those located inside of them and generate a heat of higher temperature than the latter. However, a turbulent flow of the water occurs around the support arms 14a and 14b thereof and, in addition, mixes with a lateral flow from the support arms 14b of the neutron absorber plates 12a and 12b being adjacent thereto inside, and therefore they are cooled down effectively.

6. 发明专利

JPS6166989A Core reactivity controller for boiling-water type reactor 失效
标题翻译：锅炉水反应器核心反应控制器
公开(公告)号：JPS6166989A
公开(公告)日：1986-04-05
申请号：JP18926684
申请日：1984-09-10
申请人： Toshiba Corp
发明人： TSUJI MASACHIKA , MOTOYOSHI YUUICHI
IPC分类号： G21C7/113 , G21C7/10
CPC分类号： Y02E30/31 , Y02E30/39

7. 发明专利

JPH09269392A METHOD FOR INSTALLING CORE SHROUD AND RADIATION SHIELD STRUCTURE IN REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPH09269392A
公开(公告)日：1997-10-14
申请号：JP10365196
申请日：1996-03-30
申请人： TOSHIBA CORP
发明人： YASUDA TOSHIHIRO , MASUDA YOICHI , MOTOYOSHI YUUICHI
IPC分类号： G21C13/00 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To make it possible to improve workability and work accurately and efficiently while reducing workers' exposure doses to radiation significantly by shielding radiation doses efficiently. SOLUTION: When installed in a reactor pressure vessel 1, a new core shroud 20 is hoisted together with a radiation shield 23 and a seal tank 24, with the reactor pressure vessel 1 filled with the water, and is set above a shroud support 3. Thereafter, the water is drained from the vessel 1 and the new core shroud 20 is seal-welded onto the shroud support 3 from the outer periphery. Subsequently, a working area 51 is formed in the shroud 20 by pouring the water into a downcomer part 10 and a tank 24. After the shroud 20 is seal-welded onto the shroud support 3 from the inner periphery, the radiation shield 2 and a seal tank 24 are removed by lifting them with the vessel 1 filled with the water.

8. 发明专利

JPH07266230A METHOD AND DEVICE FOR REFORMING STRUCTURAL MATERIAL 失效
公开(公告)号：JPH07266230A
公开(公告)日：1995-10-17
申请号：JP5883494
申请日：1994-03-29
申请人： TOSHIBA CORP
发明人： OBATA MINORU , ITO ARATA , MOTOKI HIDEO , HAMAMOTO YOSHIO , MOTOYOSHI YUUICHI
IPC分类号： G21C19/02 , B24C1/10 , B24C5/02 , C21D7/06
摘要： PURPOSE:To previously prevent the generation of stress corrosion cracking by generating the collision of multiple metal or ceramics shots, which are accelerated by the high pressure air at a specified value or less of the pressure difference between the pressure of a blow-out port and the pressure of the peripheral environment, with each other so as to convert the residual stress of the surface of the structural material from the tension to the compression. CONSTITUTION:A first chamber 3, which is provided with a horizontal part having a first beak part 2 in the tip thereof and a vertical part, is provided opposite to the working surface of the structural material of a structure in a nuclear reactor. A second chamber 5, which surrounds the horizontal part of the first chamber 3 and which has a second slit 4 in the tip thereof, is provided. A shot nozzle 7 having a blow-out port 6 in the tip thereof is provided in the first chamber 3 so as to pass through the vertical part wall. Multiple metal or ceramics shots, which are accelerated by the high pressure air at 2kgf/cm or less of the pressure difference between the pressure of the blow-out port 6 and the pressure of the peripheral environment, are made to collide with each other so as to convert the residual stress of the working surface 1 from the tension to the compression.

9. 发明专利

JPH04106496A NUCLEAR REACTOR CONTROL ROD 失效
公开(公告)号：JPH04106496A
公开(公告)日：1992-04-08
申请号：JP22440890
申请日：1990-08-28
申请人： TOSHIBA CORP
发明人： SUDO KAZUO , MOTOYOSHI YUUICHI , TSUMITA KOSAKU
IPC分类号： G21C7/10 , G21C7/113
摘要： PURPOSE:To prevent corrosion products and the like by constituting neutron absorber with a multitude of divided neutron absorber elements and two plates of hafnium metal having water path holes etc. so as to move in the wing. CONSTITUTION:Inside of each of neutron absorber elements 28a-28d, a moderator flow path 32 is formed between hafnium metal plates 30, as shown for example by the element 28a, and also a moderator flow path 33 is formed between the outer surface of each metal plate 30 and the inner surface of sheath 17. Therefore, the moderator stagnates to be dead water only in a small part, and generation of corrosion products is prevented. Although the metal plates 30 can generate heat during absorbing neutron and void can be generated due to temperature rise in reactor water, the support fixer pins 36 penetrated and arranged between the metal plates 30 becomes resistances, water path holes 34 are provided in each metal plate 30, and void is rapidly exhausted outside through the water path holes 34 and sheath water holes 19. Thus the reactivity worth of the control rods is never lowered.

10. 发明专利

JPS63243790A CONTROL ROD FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS63243790A
公开(公告)日：1988-10-11
申请号：JP7817187
申请日：1987-03-31
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： UEDA KIYOSHI , NAKAMURA MITSUHARU , MOTOYOSHI YUUICHI
IPC分类号： G21C7/113 , G21C7/10

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