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11. 发明专利

JP2007010632A Volume reduction system of spent control rod, and its method 有权
标题翻译：弹力控制杆减压系统及其方法
公开(公告)号：JP2007010632A
公开(公告)日：2007-01-18
申请号：JP2005195461
申请日：2005-07-04
申请人： Hitachi Ltd , Ibaraki Hitachi Joho Service Kk , 株式会社日立製作所 , 茨城日立情報サ−ビス株式会社
发明人： SATO MORIO , OMOTE TATSUYUKI , SONOBE MASAYOSHI , OZAWA FUSAAKI , NAKAJIMA MASATOSHI
IPC分类号： G21F9/30 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To provide a technology for efficiently executing volume reduction work for spent control rods removed from a reactor, in a nuclear power station, and for reducing fine particles generated accompanying the volume reduction work.
SOLUTION: A system (S) for reducing volume of the spent control rods (20a) removed from the reactor of the nuclear power station comprises a first cutter (40) for cutting the ends (25) in the longitudinal direction of control rods (20a) into end-cut rods (20b), a second cutter (50) for cutting the end-cut rods (20b) along the longitudinal direction into vertical-cut pieces (20c), a rack (60) for placing the control rods (20a) and/or the end-cut rods (20b), a container (70) for containing the vertical-cut pieces (20c), and a carrier (30) capable of carrying both the end-cut rods (20b) and the vertical-cut pieces (20c).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于有效地执行从反应堆，核电站中移除的废控制棒的体积减小工作以及用于减少伴随体积减小工作产生的细小颗粒的技术。解决方案：用于减少从核电站的反应器移除的废控制棒（20a）的体积的系统（S）包括：第一切割器（40），用于在纵向方向上切割端部（25）杆（20a）切割成切割杆（20b）;第二切割器（50），用于将沿着纵向的端切割杆（20b）切割成垂直切割件（20c）;齿条（60）控制棒（20a）和/或端切杆（20b），容纳垂直切割件（20c）的容器（70）和能够承载两个端切杆（20b）的托架）和垂直切割件（20c）。版权所有（C）2007，JPO＆INPIT

12. 发明专利

JPH06148392A CART DRIVING MECHANISM AND CUTTING DEVICE FOR RADIOACTIVE SOLID WASTE 失效
公开(公告)号：JPH06148392A
公开(公告)日：1994-05-27
申请号：JP30245092
申请日：1992-11-12
申请人： HITACHI LTD
发明人： KIKUCHI KOJI , OMOTE TATSUYUKI , SATO MORIO , YOSHIDA TOMIJI
IPC分类号： G21F9/30 , G21C19/02 , G21C19/365
摘要： PURPOSE:To furnish a construction enabling reduction of exposure of an operator in a cart driving mechanism using a flexible member such as a wire rope or a chain. CONSTITUTION:A power of a motor 26 is outputted through a reduction gear 25, given to an output shaft 17 through joints 23 and 24 and further transmitted to a transmission shaft 17 through bevel gear 20 and a bevel gear 19. This output is given to a transmission shaft 13 through joints 16 and 15 and makes an input shaft 10 of an upper sprocket rotate through bevel gears 12 and 11. Thereby a chain 8 is moved up and down between this sprocket and a lower sprocket in water and a cart goes up and down therewith. Since the chain 8 and the sprocket 7 which are contaminated are present in the water and are not shifted into the air, a dose equivalent rate at and around a frame 27 is suppressed and exposure of an operator is reduced.

13. 发明专利

JPH0584578A PLASMA DEVICE 失效
公开(公告)号：JPH0584578A
公开(公告)日：1993-04-06
申请号：JP9210491
申请日：1991-04-23
申请人： HITACHI LTD
发明人： SATO MORIO , KIKUCHI KOJI , OMORI SHINYA , SHIMURA TAKAO , YOSHIDA TOMIJI , HANEDA MITSUAKI
IPC分类号： B23K9/00 , B23K10/00 , H05H1/36
摘要： PURPOSE:To prevent the adverse influence on the surrounding environment from the plasma device by superimposing a high-frequency voltage pulse on the plasma power source voltage via a highfrequency transformer. CONSTITUTION:The plasma device which impresses the high-frequency voltage on the power source voltage to generate specified plasma and performs cutting or welding is provided with a high-frequency voltage pulse generation circuit and the high-frequency transformer which superimposes the high-frequency voltage pulse outputted from this pulse generation circuit on the power source voltage. Consequently, the level of noise at the time of generating a plasma arc is reduced and reliability at the time of plasma cutting and welding can be improved.

14. 发明专利

JPH01266394A SUPPORT METHOD AND DEVICE FOR LARGE WEIGHT STRUCTURE 失效
公开(公告)号：JPH01266394A
公开(公告)日：1989-10-24
申请号：JP9465088
申请日：1988-04-19
申请人： HITACHI LTD
发明人： TAKANO TAKESHI , NAKAHARA SHINICHI , OKABE AKIRA , IMAI SHINICHI , SATO MORIO
IPC分类号： G21C13/02 , F16M7/00
摘要： PURPOSE:To prevent the operation of an excessive force against a support structure due to the heat expansion shrinkage of a large weight structure, by supporting the large weight structure by means of the magnetic repulsion power of a floating side magnet arranged at the large weight structure and a fixing side magnet arranged at the support structure. CONSTITUTION:Two places nearer to the center from both end portions of a moisture separator 1 are supported by means of tubular support members 2. A permanent magnet 4a is fixed at the outer perimeter of the moisture separator 1, and this magnet 4a is not fixed against a basic structure. Tubular support members 2 are fixed against the base in a suspension type, and a magnet 4b which is a fixation member is fixed at its inner perimeter surface. The permanent magnet 4b and the floating permanent magnet 4a have their magnetic poles of co-polarity opposed to each other. The mixture separator 1 floats and is supported by means of the repulsion power of the mutual magnetic poles of co-polarity.

15. 发明专利

JPS5149413A 3 SOKORYUHATSUDENKISEIRYUKAIRO 失效
公开(公告)号：JPS5149413A
公开(公告)日：1976-04-28
申请号：JP12250974
申请日：1974-10-25
申请人： HITACHI LTD
发明人： NAOI KEIGO , SATO MORIO
IPC分类号： H02K19/36 , H02K11/00 , H02M7/06 , H02M7/12 , H02M7/155 , H02P9/04

16. 发明专利

JP2003232882A REMOVING METHOD AND REMOVING DEVICE FOR LARGE DIAMETER BOLT IN NUCLEAR REACTOR 审中-公开
公开(公告)号：JP2003232882A
公开(公告)日：2003-08-22
申请号：JP2002031173
申请日：2002-02-07
申请人： HITACHI LTD
发明人： MAEDA MINORU , OMOTE TATSUYUKI , MUTO HIROSHI , SATO MORIO
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To provide a method that mechanically loosens and removes a large diameter bolt fastening equipment in a nuclear reactor. SOLUTION: A bolt loosening device 5 remote-operated into rotationally locked contact with a core shroud 4, and a bolt fixing device 6, as holding a lower nut 1c against rotational drag and locking a large diameter bolt 1 against rotation, apply high loosening torque to an anti-rotation fitting 1a and an upper nut 1b to break a locking weld and release a mesh, whereupon the large diameter bolt 1 fastening equipment in a reactor is removed. COPYRIGHT: (C)2003,JPO

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