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1. 发明专利

JPS6159288A Driving mechanism of control rod 失效
公开(公告)号：JPS6159288A
公开(公告)日：1986-03-26
申请号：JP18183284
申请日：1984-08-31
申请人： Toshiba Corp
发明人： IKAKURA HIROAKI
IPC分类号： G21C7/14
CPC分类号： Y02E30/34 , Y02E30/39

2. 发明专利

JP2006314958A Electrolytic device 有权
标题翻译：电解设备
公开(公告)号：JP2006314958A
公开(公告)日：2006-11-24
申请号：JP2005141892
申请日：2005-05-13
申请人： Toshiba Corp , 株式会社東芝
发明人： IKAKURA HIROAKI , NAKAMURA HITOSHI , SATO MAKOTO , UTSUNOMIYA KAZUHIRO
IPC分类号： B01D17/06 , C25B1/00 , C25B9/12 , C25B15/08 , G21C19/44
CPC分类号： Y02W30/882
摘要： PROBLEM TO BE SOLVED: To provide an electrolytic device which efficiently performs electrolytic treatment and recovers an electrolytic deposit without suspending the operation of the electrolytic device. SOLUTION: The electrolytic device 10 has a crucible 11 housing a molten salt 12, a heating means 13 heating the crucible 11, an electrode device 18 having an anode 16 and a cathode 17 housed in the crucible 11, a power circuit for electrolysis 19 supplying an electric source across the electrodes 16, 17 of the electrolytic device 18, an electrode driving device 25 driving a movable electrode 17 of the electrolytic device liftably and rotatably and a recovering device 47 recovering the electrolytic deposit deposited on the cathode 17 side by supplying the electric source to the electrodes 16, 17. The electrolytic device 18 has a truss-shaped or annular fixed electrode 16 installed immersible in the molten salt 12 in the crucible 11 and the movable electrode 17 arranged detachably inside of the fixed electrode 16. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种电解装置，其有效地进行电解处理并回收电解沉积物，而不会悬浮电解装置的操作。解决方案：电解装置10具有容纳熔融盐12的坩埚11，加热坩埚11的加热装置13，容纳在坩埚11中的阳极16和阴极17的电极装置18，用于在电解装置18的电极16,17之间供给电源的电解19，可升降地驱动电解装置的可动电极17的电极驱动装置25和回收沉积在阴极17侧的电解沉积物的回收装置47 通过向电极16,17提供电源。电解装置18具有安装在坩埚11中的熔融盐12中浸渍的桁架状或环状的固定电极16以及可拆卸地配置在固定电极16内的可动电极17 。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2003185784A MAINTENANCE AND REPAIR DEVICE FOR REACTOR CORE INTERNAL 审中-公开
公开(公告)号：JP2003185784A
公开(公告)日：2003-07-03
申请号：JP2001386131
申请日：2001-12-19
申请人： TOSHIBA CORP
发明人： SATO KATSUHIKO , TOGASAWA YUTAKA , IKAKURA HIROAKI , OKADA SATOSHI , SUEZONO CHIYOUICHI
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To accurately position and move construction tools or the like for scans in remotely inspecting, maintaining and repairing a structure in a reactor under water. SOLUTION: The in-core maintenance and repair device has a maintenance and repair work support device 1 capable of being moved into and out of a cylindrical part of a reactor, and a maintenance and repair scan mechanism part 30 driven by the support device along the outer surface of the cylindrical part 150 for inspecting, maintaining or repairing the outer surface of the cylindrical part. The maintenance and repair work support device has a deployment mechanism 4a capable of being spread in the radial direction of the cylindrical part when inserted in the cylindrical part, a magnet 13 mounted near a tip of the deployment mechanism and positioned oppositely to the inner surface of the cylindrical part, and a moving mechanism 8 for moving the magnet along the inner surface of the cylindrical part. The maintenance and repair scan mechanism part is adapted to be attracted by the magnet and driven following the movement of the magnet caused by the moving mechanism. COPYRIGHT: (C)2003,JPO

4. 发明专利

JPH11174191A PREVENTIVE MAINTENANCE AND REPAIR DEVICE OF REACTOR INTERNAL STRUCTURE 失效
公开(公告)号：JPH11174191A
公开(公告)日：1999-07-02
申请号：JP33897497
申请日：1997-12-09
申请人： TOSHIBA CORP
发明人： SATO KATSUHIKO , KIMURA MOTOHIKO , SANO YUJI , MUKAI SHIGEHIKO , TOGASAWA YUTAKA , KONDO MAKOTO , IKAKURA HIROAKI , SHIMAMURA MITSUAKI , SATO TAKAFUMI , KITAJIMA YASUKI , UEHARA TAKUYA , YODA MASAKI , OCHIAI MAKOTO , ITO TOMOYUKI
IPC分类号： G21C19/02 , B23K26/00 , B23K26/12 , G21C17/01
摘要： PROBLEM TO BE SOLVED: To improve stress from outside even in narrow and complicated environment in reactor pressure vessel, conduct preventive maintenance, and maintain the integrity of plant. SOLUTION: On operation floor 1 after removing fuel assembly in a reactor pressure vessel 2, a support column 20 loaded by a laser oscillator 70 and a light guide 25 are placed; and in the reactor pressure vessel 2, a horizontal light guide 29 and a laser work device 73 for annulus are loaded. The light guide 25 is connected to a movable reflection type mirror box 24, the mirror box 24 is connected to a light guide mast 26 and the light guide mast 26 is connected to a horizontal light guide 29. By transmitting laser from the laser oscillator 70 on the operation floor 1 to the laser work device 73 for annulus and irradiating laser to the work object from the laser work device 73 for annulus, stress is improved.

5. 发明专利

JPH0943379A REACTOR SHUTDOWN DEVICE 失效
公开(公告)号：JPH0943379A
公开(公告)日：1997-02-14
申请号：JP19026495
申请日：1995-07-26
申请人： TOSHIBA CORP
发明人： ARIYOSHI MASAHIKO , KASAI SHIGEO , MATSUMOTO FUJIO , MATSUMOTO KOJI , IKAKURA HIROAKI , HASEGAWA AYA
IPC分类号： G21C9/033
摘要： PROBLEM TO BE SOLVED: To passively shut down an emergency reactor shutdown system of a fast breeder reactor without any dependence of a control rod. SOLUTION: A reactor shutdown device is composed of a core component and a thermal stretching mechanism 17. The core component 1 is provided with a cylindrical body 8 having a neutron absorber filled in a wrapper tube 4 and a plug attached rod 13 to which a plug 12 for dropping the neutron absorber 10 is attached. The thermal stretching mechanism 17 is so formed that a sliding guide 19 and a thermal expansion medium 21 are sealed in an outer cylinder 18 and a piston 22 lowering along the sliding guide 19 is sealed by a bellows. The thermal stretching mechanism 17 actuates by sensing increase in temperature of the coolant in the circumference of the reactor container and presses down the plug 12 so that the neutron absorber 10 is made to drop to the core level and passively shut down the reactor.

6. 发明专利

JPH05119179A CONTROL ROD FOR FAST REACTOR 失效
公开(公告)号：JPH05119179A
公开(公告)日：1993-05-18
申请号：JP28026691
申请日：1991-10-28
申请人： TOSHIBA CORP
发明人： IKAKURA HIROAKI , NINOMIYA SUSUMU , SHIMIZU HIROSHI , SAKAMOTO SADAO
IPC分类号： G21C7/14 , G21C9/02
摘要： PURPOSE:To obtain a control rod for a fast reactor for suppressing an output by making a heat expansion force act with abnormality in outputs of a nuclear reactor to insert an neutron absorption substance into a core without artificial operation from outside. CONSTITUTION:A control rod for a fast reactor is made up of a control body part 13 having a neutron absorption substance and a sealed container 15 free to expand axially, which has a liquid metal 19 allowing the insertion of the control body part 13 into a core 1 overcoming a spring 18 by a high temperature thereof when abnormality occurs in outputs of a nuclear reactor and a space part to absorb the expansion of the liquid metal 19 so that the control body part 13 is kept from being inserted into the core 1 in the normal operation.

7. 发明专利

JP2001296384A MODULE TYPE UNDERWATER REPAIRING DEVICE AND METHOD 失效
公开(公告)号：JP2001296384A
公开(公告)日：2001-10-26
申请号：JP2000113631
申请日：2000-04-14
申请人： TOSHIBA CORP
发明人： SATO KATSUHIKO , KIMURA MOTOHIKO , IKAKURA HIROAKI , TOGASAWA YUTAKA , UEHARA TAKUYA , YUGUCHI YASUHIRO , SORAMOTO SEIKI , KURIHARA KENJI , YASUDA YUJI , NARUSE KATSUHIKO
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To obtain a partial repairing device and method having high activity which can respond a variety of construction object even with somewhat bad efficiency and immediately insert and place in the core. SOLUTION: The device hat a work part constituted of a scan drive module 2 selectively detachable of various tool modules capable of repairing in-core structure and having a scan/transmission axis for the tool module 1, an underwater fan module 3 selectively detachable of the scan drive module 2 and a buoyancy module 4 ensuring the posture direction, and a base part constituted of a manipulator module 5 having inside an actuator drive mechanism, an attraction module 6 detachable from the manipulator module and capable of attracting to the wall surface, and a buoyancy module 8 ensuring the posture direction. Each module is combined according to the various work objectives in the core to change or remodel the states and the functions and also remotely combined in the core by an underwater detachment provided in each module when necessary.

8. 发明专利

JP2000153385A DEVICE FOR PREVENTIVE MAINTENANCE AND REPAIR OF LASER PROJECTING HEAD AND STRUCTURE IN NUCLEAR REACTOR EQUIPPED WITH THIS PROJECTING HEAD AND METHOD FOR WORKING 失效
公开(公告)号：JP2000153385A
公开(公告)日：2000-06-06
申请号：JP32560898
申请日：1998-11-16
申请人： TOSHIBA CORP
发明人： SHIMAMURA MITSUAKI , SATO KATSUHIKO , KIMURA MOTOHIKO , TOGASAWA YUTAKA , IKAKURA HIROAKI , UEHARA TAKUYA , SANO YUJI , YODA MASAKI , OBATA MINORU , MUKAI SHIGEHIKO , OGISU TATSUKI , TANAKA NOBUHIKO , KONDO MAKOTO , KITAJIMA YASUKI , ITO TOMOYUKI
IPC分类号： B23K26/21 , B23K26/064 , B23K26/12 , B23K26/352 , G21C19/02 , B23K26/06 , B23K26/00
摘要： PROBLEM TO BE SOLVED: To provide a device for preventive maintenance and repair of a laser projecting head and a structure in a nuclear reactor equipped with this projecting head and a method for working capable of effectively executing preventive maintenance and repair by laser beam even though a part of working object is narrow. SOLUTION: A device 20 for preventive maintenance and repair of a structure in a nuclear reactor is equipped with a laser beam machine 24 to output laser beam, a laser beam guiding means 25 to guide laser beam L, from this laser beam machine 24 into a nuclear reactor 10, and a laser projecting head 26 to project the laser beam guided into the nuclear reactor on a part of working object 21 of a structure 15 in a nuclear reactor. Further the device 20 for preventive maintenance and repair is equipped with a main body positioning device 29 which is hung and drawn-in to the nuclear reactor 10 and installed in the center of the reactor, and a mechanism 31 for moving the head to-and-fro which makes the laser projecting head 26 contained in this main body positioning device 29 stretch out freely forwards and backwards to the neighborhood of the part of working object 21 and then settle, and with a laser beam transmitting means 27 to receive and lead the laser beam L introduced into the nuclear reactor 10 to the projecting head 26; the laser projecting head 26 is made to stretch-out to the part of working object on the inner wall of a shroud 11, and then is positioned and settled.

9. 发明专利

JPH0854486A CONTROL ROD DRIVE DEVICE FOR FAST REACTOR 失效
公开(公告)号：JPH0854486A
公开(公告)日：1996-02-27
申请号：JP19041094
申请日：1994-08-12
申请人： TOSHIBA CORP
发明人： IKAKURA HIROAKI
IPC分类号： G21C7/14
摘要： PURPOSE:To adjust the sliding resistance and leak quantity of a seal part to the optimum condition and isolate the upper mechanism of a control rod drive device from a sodium atmosphere in a unclear reactor in a very hot environment by using a sealing hollow member which presses a seal material against the surface of an extension pipe through the bulging of its internal circumference caused by the fluid pressure supplied to the inside of it. CONSTITUTION:A sealing hollow member 15 is shaped like a ring, the inside of which is a hollow structure, an extension pipe 11 goes through a hole in the center of the ring and the part facing the extension pipe 11 is a thin--walled structure 23. Then, a sealing material 24 such as expanding graphite which can be used in a very hot atmosphere is inserted into an aperture between the thin-walled structure 23 and the extension pipe 11 and is fixed with a screw 25 and a pressing jig 26. Subsequently, when, into the hollow part of the hollow member 15, gas is supplied from a gas supplying component 17 through a pipe 16, the thin-walled structure 23 expands inward and presses the sealing material 24 against the extension pipe 11 to seal up the aperture between it and an upper guide tube 4. In this process, the gas pressure is measured by a pressure gauge 18 and regulated by a pressure-regulating valve 19 in order to prevent the oversupply of the clamping force to the extension pipe 11.

10. 发明专利

JPH06323777A HEAT EXCHANGER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH06323777A
公开(公告)日：1994-11-25
申请号：JP11570293
申请日：1993-05-18
申请人： TOSHIBA CORP
发明人： SHIMANO KUNIO , IKAKURA HIROAKI , ISHITORI TAKASHI , NINOMIYA SUSUMU , INOUE MASAAKI
IPC分类号： F28D7/10 , F28D7/02 , F28D7/16 , F28F11/00 , G21D1/00 , G21D5/12
摘要： PURPOSE:To provide a heat exchanger wherein the capacity thereof can be increased without enlarging the heat exchanger and without increasing the number of heating tubes, and further heat transfer characteristics is improved by restoring a close contact between inner and outer tubes and a porous matal. CONSTITUTION:In a heat exchanger provided with a leak sensing means for sensing a leakage of a fluid passing through a double tube type heating tube 2, in which a porous metal 4 is disposed in a gap between an inner tube 5 and an outer tube 3 of the tube 2, through the gap between the tube 5 and the tube 3, the heating tube 2 comprises a helical type double heating tube 52.

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