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1. 发明专利

JP2004163213A Method and device for repairing weld 有权
公开(公告)号：JP2004163213A
公开(公告)日：2004-06-10
申请号：JP2002328291
申请日：2002-11-12
申请人： Babcock Hitachi Kk , Hestec Service Co Ltd , Hitachi Ltd , バブコック日立株式会社 , 株式会社ヘステックサービス , 株式会社日立製作所
发明人： KUROSAWA KOICHI , NISHINO MASAYUKI , HOSONO YASUHARU , UMAHARA YOICHI , MORINAKA TADASHI
IPC分类号： G21C19/20 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To provide a method for carrying out work efficiently and accurately if the work for repairing a control rod drive mechanism housing stub tube (CRD stub) or its weld is required in service. SOLUTION: A device for repairing a weld of a control rod drive (CRD) stub 10 with the inner face of a reactor pressure vessel (RPV) 1 is equipped with: a working section 33b which has an electrode 35 on its lower end side and a pin 34 that is advanced and retreated by an advancing and retreating means on its upper end side respectively; a dangling section 33a from which the working section 33b dangles and which includes first and second displacement gauges 38a and 38b that detect the position of an insertion hole 41 into which the pin 34 can be inserted and that of the pin 34; and a control means which allows the electrode 35 to carry out repair work so as to resolve the inclination of the CRD stub 10 found from that of the working section 33b detected from the positions detected by the displacement gauges 38a and 38b after mounting the working section 33b on the CRD stub 10. COPYRIGHT: (C)2004,JPO

2. 发明专利

JPH10293191A PREVENTIVE MAINTENANCE DEVICE FOR STRUCTURAL MEMBER IN REACTOR PRESSURE VESSEL 失效
公开(公告)号：JPH10293191A
公开(公告)日：1998-11-04
申请号：JP4188498
申请日：1998-02-24
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KUROSAWA KOICHI , HAYASHI EISAKU , SHIMIZU SADAHITO , OTAKA MINORU , YOSHIKUBO FUJIO , MORINAKA TADASHI , NISHINO MASAYUKI , CHIBA NOBORU , ENOMOTO KUNIO , SATOU KAZUNORI
IPC分类号： G21C19/02 , G21D1/00
摘要： PROBLEM TO BE SOLVED: To make it possible for a spray nozzle to move to a part subject to preventive maintenance by providing an annular guide rail and a turntable turning on the guide rail to allow a spray nozzle moving device to move the spray nozzle in the radial and axial directions of a core shroud. SOLUTION: This device is equipped with a guide rail, a turn table, a control panel 18, a clad recovery device 41, spray nozzle moving devices 124 and 124c and a spray water supply device 125. The guide rail, the turn table and time spray nozzle movers 124 and 124c are integrated on the turntable and are lowered to an upper flange. The spray nozzle is continuously moved around a corer shroud by the turning of the turntable to shorten the time required for preventive maintenance. The vertical movement of an elevator driven by a motor and the turning of the turn table allows time spray nozzle to sprays a jet of a water flow, moving in a zigzag near a weld over the full perimeter of it in the circumferential direction.

3. 发明专利

JPH10245625A METHOD FOR IMPROVING RESIDUAL STRESS IN METALLIC MATERIAL AND DEVICE THEREFOR 失效
公开(公告)号：JPH10245625A
公开(公告)日：1998-09-14
申请号：JP5190797
申请日：1997-03-06
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KUROSAWA KOICHI , FURUKAWA HIDEYASU , TAKADA HIROSHI , OTAKA MINORU , NISHINO MASAYUKI , ENOMOTO KUNIO , SATOU KAZUNORI
IPC分类号： G21D1/00 , C21D7/04
摘要： PROBLEM TO BE SOLVED: To provide a method for improving the residual stress in a metallic material effectively applying compressive residual stress without consuming a large quantity of water and to provide a device therefor. SOLUTION: A residual stress improving device for a metallic material is composed of a liq. tank 7, a shock wave generating electrode 6 arranged in the liq. tank 7, a metallic material 12 to be improved in residual stress immersed in the liq. tank 7, a power source device 1 feeding d.c. high voltage to the shock wave generating electrode 6 generating shock waves and electrode moving means 2 and 5 moving the electrode position in the shock wave generating device.

4. 发明专利

JP2001108784A METHOD FOR REPLACING NEUTRON MEASUREMENT HOUSING AND DEVICE USED THEREFOR 失效
公开(公告)号：JP2001108784A
公开(公告)日：2001-04-20
申请号：JP28768699
申请日：1999-10-08
申请人： HITACHI LTD , BABCOCK HITACHI KK , HITACHI ENG SERVICE
发明人： KUROSAWA KOICHI , NISHINO MASAYUKI , SUZUKI YOSHINORI , FUSE MOTOMASA , FUJIMORI HARUO , UMAHARA YOICHI , MATSUMOTO MITSUO
IPC分类号： G21C19/20
摘要： PROBLEM TO BE SOLVED: To provide a method for replacing an ICM housing efficiently in a short time if the need to replace it arises during a service period. SOLUTION: Prior to executing work of replacing the ICM housing, a guide pipe for inserting a device into a flange surface of an RPV(reactor pressure vessel), an installation jig, and a shielding body equipped with a cable processing device are installed, and reactor water is drained.

5. 发明专利

JP2000266886A REPLACING METHOD FOR JET PUMP RISER PIPE AND ITS DEVICE 失效
公开(公告)号：JP2000266886A
公开(公告)日：2000-09-29
申请号：JP7577399
申请日：1999-03-19
申请人： HITACHI LTD , HITACHI NUCLEAR ENG , HITACHI KISOU KK , HESUKO TECHNOLOGY KK
发明人： KUROSAWA KOICHI , NISHINO MASAYUKI , OTAKA MINORU , FUKUMITSU HARUMASA , KIHARA SUMIHIDE , TSUJIMURA HIROSHI , CHIBA ISAO , SATO KIKIYO
IPC分类号： G21C19/02
摘要： PROBLEM TO BE SOLVED: To replace a jet pump riser pipe in a short time and efficiently by installing a combined jet pump riser pipe combining a riser pipe, a riser brace, a riser bracket, thermal sleeve, etc., to a jet pump riser pipe replacing device. SOLUTION: In a replacing method of a jet pump riser pipe 1 consisting of a pressure vessel 8 provided with a recirculation inlet nozzle 11, a nozzle safe end 9 attached to the nozzle and a thermal sleeve 2 on one end and attaching the riser pipe to the recirculation water inlet nozzle, the thermal sleeve, a jet pump riser brace and a jet pump riser bracket are attached outside the reactor pressure vessel, then the jet pump riser pipe is inserted in the reactor pressure vessel the jet pump thermal sleeve is attached to the nozzle safe end and the jet pump riser brace is attached to the reactor pressure vessel by way of a riser brace pad 10 formed on the inner wall of the pressure vessel.

6. 发明专利

JP2005207983A Repairing method for instrumentation tube of jet pump differential pressure, and its system 有权
标题翻译：喷射泵差压检测仪及其系统的维修方法
公开(公告)号：JP2005207983A
公开(公告)日：2005-08-04
申请号：JP2004016912
申请日：2004-01-26
申请人： Bab-Hitachi Industrial Co , Hestec Service Co Ltd , Hitachi Ltd , バブ日立工業株式会社 , 株式会社ヘステックサービス , 株式会社日立製作所
发明人： YOSHIE YUTAKA , NISHINO MASAYUKI , NAGASHIMA TOSHIJI , IKEDA HIROSHIGE , FURUKAWA NOBUO , SUGANO SATOSHI , OTAKA MINORU
IPC分类号： G21C15/25 , G21C15/243 , G21C19/02
CPC分类号： Y02E30/31
摘要： PROBLEM TO BE SOLVED: To provide a method and system capable of efficiently repairing in a short time, when a work of repairing instrumentation tube of jet pump has incurred during service period.
SOLUTION: In-reactor equipment are removed, centers of broken instrumentation tubes are tentatively aligned, the breakage cross sections are held at nearly aligned positions by the tentative matching, tube outer surface is polished, and the breakage positions are tentatively welded (S101 to 104), by introducing a tentative welder in the reactor. When tentative welding is completed, the tentative welder is taken out of the reactor for total seal welding of the tentatively finished instrumentation tube, and a seal welder is introduced in the reactor and attached to the tentatively welded instrumentation tube. Well water is drained and seal welding of the instrumentation tube is conducted (S105 to 107), by operating the seal welder in pneumatic environment. Then, the pressure vessel is filled with water, the seal welder is taken out, and in-reactor components are recovered (S108 to 110) for finishing the work.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够在短时间内有效修复的方法和系统，当在使用期间发生喷射泵的仪表管的修理工作时。解决方案：拆除反应堆内的设备，将试样管的中心暂时排列，通过临时匹配将断裂截面保持在几乎对准的位置，管外表面进行抛光，并将断裂位置暂时焊接（ S101至104），通过在反应堆中引入临时焊工。暂时焊接完成后，临时焊机从反应堆中取出，用于临时成品仪表管的全密封焊接，并将密封焊机引入反应堆并附着在临时焊接的仪表管上。通过在气动环境中操作密封焊机，排水井和仪表管的密封焊接（S105〜107）。然后，用水填充压力容器，取出密封焊接机，回收反应器内部件（S108〜110），完成工作。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2007309788A Device and method for maintenance work on reactor pressure vessel 审中-公开
标题翻译：用于维护反应堆压力容器的装置和方法
公开(公告)号：JP2007309788A
公开(公告)日：2007-11-29
申请号：JP2006139202
申请日：2006-05-18
申请人： Hitachi Engineering & Services Co Ltd , Hitachi Ltd , 株式会社日立エンジニアリング・アンド・サービス , 株式会社日立製作所
发明人： TANAKA MASAAKI , KUROSAWA KOICHI , HIRANO KATSUHIKO , NISHINO MASAYUKI , SUZUKI YOSHINORI
IPC分类号： G21C17/003 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To provide a device for maintenance work on a reactor pressure vessel which gives easy access to a desired area to be maintained and a working method for conducting a highly efficient maintenance work in an annulus section by using the device for maintenance work.
SOLUTION: The device for the maintenance work on the reactor pressure vessel 1 consists of a dolly 18 equipped with a working head 30 which is brought into the annulus section 8 of the reactor pressure vessel 1 and travels on a baffle plate 6, rope-shaped towing members 20 and 21 for towing the dolly 18 equipped with the working head 30, guide members 16 and 17 for the towing members 20 and 21 fixed on required positions in the annulus section 8, reels 24 and 25 which are laid out above the reactor pressure vessel 1 and around which one end of each of the towing members 20 and 21 is wound and the working head 30 which is removably mounted on the dolly 18.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在反应堆压力容器上进行维护工作的装置，其容易地进入要保持的期望区域，以及通过使用该装置在环形部分中进行高效维护工作的工作方法用于维护工作。解决方案：用于在反应堆压力容器1上进行维护工作的装置由装有工作头30的台车18组成，工作头30被带入反应堆压力容器1的环形部分8并在挡板6上行进，牵引构件20和21用于牵引配备有工作头30的导轨18，用于固定在环形部分8中的所需位置的牵引构件20和21的引导构件16和17，卷轴24和25布置在反应堆压力容器1的上方，并且每个牵引构件20和21的一端缠绕在其周围，以及可移除地安装在台车18上的作业头30.版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2002286652A LIQUID PENETRANT TESTING DEVICE 失效
公开(公告)号：JP2002286652A
公开(公告)日：2002-10-03
申请号：JP2001083217
申请日：2001-03-22
申请人： HITACHI LTD , HESTEC SERVICE CO LTD
发明人： KUROSAWA KOICHI , HIRANO KATSUHIKO , NISHINO MASAYUKI , SUZUKI YOSHINORI , YAMAUCHI TATSUYA
IPC分类号： G01N21/91 , G21C17/003 , G21C17/08 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To realize a liquid penetrant testing device which can inspect a part, to be inspected, in a narrow part so as to be brought close to the part to be inspected. SOLUTION: A small observation unit is constituted by combining a ring- shaped black light 1 with a CCD camera 3 so as to be capable of intruding into the narrow part. In the black light 1, a rod-shaped light emitting part is formed in a ring shape, terminals in both ends of the black light 1 are connected to a socket 2 in one place, and a light source in a shape which can be put into a small space and which can emit light is realized. A prism 4 at the tip of the CCD camera 3 is combined so as to be situated on the center line of the ring shape part of the black light 1 in the black-light light source. Thereby, the thin observation unit which can observe (photograph) both the side direction and the front direction is constituted.

9. 发明专利

JP2000275189A PENETRATION FLAW INSPECTING APPARATUS OF INNER SURFACE OF PIPE 失效
公开(公告)号：JP2000275189A
公开(公告)日：2000-10-06
申请号：JP8536799
申请日：1999-03-29
申请人： HITACHI LTD , HITACHI ENG CO LTD , HITACHI KISOU KK
发明人： KUROSAWA KOICHI , NISHINO MASAYUKI , TAKADA HIROSHI , NAGAOKA MASAYOSHI , TOBE AKIRA
IPC分类号： G01N21/91 , G21C17/003 , G21C17/08
摘要： PROBLEM TO BE SOLVED: To enable penetration flaw inspection without contaminating a part other than an inspection part by sealing the outside of a range becoming the inner surface to be inspected of a pipe and filling and impregnating the inspection part with a penetration flaw detecting liquid to certainly coat the same. SOLUTION: In penetration flaw inspection, a flaw detection head 3 is connected to the leading end of a pole 4 to be inserted in a neutron flux monitor (ICM) housing 2 and attached to the housing so that a seal packing 7 surrounds a surface clad part 5 to be inspected. Next, air is supplied from a supply port 6 to bring the seal packing 7 into close contact with the inner surface of the ICM housing 2 to seal an inspection part 8 and a penetration flaw detecting liquid is injected from a supply port 9 to fill the inspection part 8. Air is discharged from a discharge port 10 simultaneously with injection and the injection of the penetration flaw detecting liquid is stopped when the penetration flaw detecting liquid begins to discharge and this state is held for a definite time to allow the penetration flaw detecting liquid to penetrate into the clad part 5. Thereafter, washing water is injected from the supply port 9 to wash the inspection part 8 and discharged from the supply port 9 by air injected from the discharge port 10.

10. 发明专利

JP2000135677A ABRASIVE WATER JET CUTTING METHOD 失效
公开(公告)号：JP2000135677A
公开(公告)日：2000-05-16
申请号：JP30983798
申请日：1998-10-30
申请人： HITACHI LTD , HITACHI KISOU KK
发明人： KUROSAWA KOICHI , TADA NOBUO , ONO SHIGEKI , SUGAWARA NOBUHIKO , NISHINO MASAYUKI
IPC分类号： B24C1/00 , B24C9/00 , B24C11/00 , B26F3/00 , G21C19/02
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration of an underwater environment of abrasive water jet cutting work by removing a stain of the abrasive surface being an abrasive, and using a clean abrasive. SOLUTION: In an abrasive, refuse and oxide films sticking to the abrasive outside surface are preremoved by an abrasive cleaning unit 4. These refuse, etc., are accumulated in a waste liquid tank 7 by a waste liquid line 8. Only a cleaned abrasive is fed to an abrasive supply unit 3 through an abrasive supply line 6 to be jetted out to a cutting object 14 together with water pressurized by an extra-high pressure pump 2 from an abrasive nozzle 1. Thus, since the refuse of the abrasive is preremoved, pollution of water in a tank 13 can be improved more than when the abrasive is not cleaned. The abrasive cleaning unit 4 is incorporated into a cutting system, but an abrasive precleaned by another unit can be fed to the abrasive supply unit 3.

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