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1. 发明专利

JPS60196486A Method of exchange construction of recirculating piping for nuclear reactor 失效
标题翻译：交换式核反应堆再生管道的构造方法
公开(公告)号：JPS60196486A
公开(公告)日：1985-10-04
申请号：JP4910584
申请日：1984-03-16
申请人： Hitachi Ltd
发明人： KOSUGI NOBUO , NEMEZAWA ISAO , TAKAHASHI AKIRA
IPC分类号： F16L1/00

2. 发明专利

JPS6088206A FLOW FLUCTUATION SUPPLESSING METHOD AND CONSTRUCTION OF BRANCH PIPES IN RECYCLING PIPING SYSTEM IN BWR PLANT 失效
公开(公告)号：JPS6088206A
公开(公告)日：1985-05-18
申请号：JP19660083
申请日：1983-10-19
申请人： HITACHI LTD
发明人： SAGAWA WATARU , NEMEZAWA ISAO , IZUMIYAMA AKIMASA , SUZUKI KOUICHI , KOSUGI NOBUO , TAKEHARA HIDETOSHI , ITOU TAKASHI , KODAMA IKUO , YOSHINAGA YOUICHI , MIURA SEIJI , MIZUNO TADASHI , KOTANI KOUICHI
IPC分类号： F15D1/02 , F15D1/00 , F15D1/04 , G21C15/22 , G21D1/00
摘要： PURPOSE:To prevent fluctuation of branched fluid flow rate in a piping system in which a header has branch pipes provided with fluid outlets at least in three directions, by providing a swirlling flow inducing device on at least a side of the branch pipes or the vicinity. CONSTITUTION:In a piping system in which a cross branch pipe 5 connected to a header 4 has connection of horizontal branch pipes 6, 6 and a vertical riser pipe 8, the longitudinal section cofiguration of a reducer 11 connected right above the cross branch pipe 5 is manufactured to have a steep slanting surface on a side and a vertical surface on the opposite side in the same manner as the inner surface of the branch pipe 5. By this configuration, the outlet center point C1 and the inlet center point C2 are made eccentric and the eccentric reducer 11 comes to have a function of swirlling flow inducing device. Thus, on the vicinity of the cross branch pipe 5 a stable counterclockwise swirlling flow is produced and smooth branching of the flow to the horizontal branch pipe 6, 6 is made possible.

3. 发明专利

JPH0827378B2 失效
公开(公告)号：JPH0827378B2
公开(公告)日：1996-03-21
申请号：JP16127884
申请日：1984-07-31
申请人： HITACHI LTD
发明人： YOSHINAGA YOICHI , MIURA SEIJI , MIZUNO TADASHI , SAGAWA WATARU , NEMEZAWA ISAO , KOSUGI NOBUO , KOTANI KOICHI
IPC分类号： G21C15/22

4. 发明专利

JPS61144619A REMOTE MONITOR DEVICE 失效
公开(公告)号：JPS61144619A
公开(公告)日：1986-07-02
申请号：JP26618384
申请日：1984-12-19
申请人： HITACHI LTD
发明人： KOSUGI NOBUO , KATO YUTAKA , KAWAMURA HIRONOBU
IPC分类号： G02B23/24 , G01N21/84 , G01N21/88 , G02B23/26 , G21C17/08 , H04N7/18
摘要： PURPOSE:To make the deep monitoring of the inside of small-diameter tubes for connecting various vessels possible by inserting a fiberscope into the small- diameter tube connected to the vessel in which an image pickup mechanism body is housed and incorporating a fiber scope driving mechanism which monitors the inside thereof into the image pickup mechanism body. CONSTITUTION:The image pickup mechanism body 6 consisting of a television image pickup tube 7 and the fiberscope 8 is mounted in a case 3 and the monitor of the small-diameter tube 2 connected to the vessel 1 is executed by inserting the fiberscope 8 of the image pickup mechanism body 6 into the small- diameter tube 2. A freely rotatable objective lens 9 attached to the top end of the fiberscope 8 monitors the inside of the tube 2 over the entire periphery. A guide pipe 12 is moved to the side of the vessel 1 connected with the small- diameter tube by operating a guide pipe driving mechanism 13 in the case of inserting the fiberscope 8 into the small-diameter tube 2 connected to the vessel 1, then a fiberscope guide roller 14 attached near the top end of the fiberscope 8 advances into the small-diameter tube 2 by passing through the inside of the guide pipe 12.

5. 发明专利

JPS60125591A RECIRCULATING PIPING SYSTEM OF NUCLEAR REACTOR 失效
公开(公告)号：JPS60125591A
公开(公告)日：1985-07-04
申请号：JP23274983
申请日：1983-12-12
申请人： HITACHI LTD
发明人： KOSUGI NOBUO , SAGAWA WATARU , NEMEZAWA ISAO , NARUMI YUUICHI
IPC分类号： G21C15/22 , G21C15/02 , G21D1/00

6. 发明专利

JPH053563B2 失效
公开(公告)号：JPH053563B2
公开(公告)日：1993-01-18
申请号：JP26618384
申请日：1984-12-19
申请人： HITACHI LTD
发明人： KOSUGI NOBUO , KATO YUTAKA , KAWAMURA HIRONOBU
IPC分类号： G02B23/24 , G01N21/84 , G01N21/88 , G02B23/26 , G21C17/08 , H04N7/18

7. 发明专利

JPH01192487A MANUFACTURE OF DISSIMILAR MATERIAL JOINT 失效
公开(公告)号：JPH01192487A
公开(公告)日：1989-08-02
申请号：JP1440188
申请日：1988-01-27
申请人： HITACHI LTD
发明人： KOSUGI NOBUO , KAWAHARA AKIRA , SASADA YASUHIRO
IPC分类号： B23K20/00
摘要： PURPOSE:To improve corrosion resistance of a joint by joining stainless steel plate material to high corrosion resistant metal material by explosion, etc., orthogonally to the rolling direction and then, performing machining in the orthogonal direction with respect to the joining surface. CONSTITUTION:The tabular stainless steel 1 and the high corrosion resistant material such as Ti and Zr are joined together by the explosion, diffusion, friction method, etc. At this time, so that a rolled structure 4 of raw material becomes orthogonal to the joining surface, namely, cross-sectional areas orthogonal to the rolling direction are joined together as the joining surface mutually. After joining, piercing is performed in the parallel direction to the rolling direction and the outside diameter, inside diameter and end face are machined so as to form the joint. In this joint, since the direction is coincident with the axial direction at the whole cross-sectional area of the rolled structure 4, the cross-sectional area orthogonal to the rolled structure 4 with deteriorated corrosion resistance does not come into contact with a corrosive liquid. Accordingly, the corrosion resistance of the joint is improved.

8. 发明专利

JPS6138594A Boiling-water type nuclear power plant 失效
标题翻译：锅炉水型核电厂
公开(公告)号：JPS6138594A
公开(公告)日：1986-02-24
申请号：JP16127884
申请日：1984-07-31
申请人： Hitachi Ltd
发明人： YOSHINAGA YOICHI , MIURA SEIJI , MIZUNO TADASHI , SAGAWA WATARU , NEMEZAWA ISAO , KOSUGI NOBUO , KOTANI KOICHI
IPC分类号： G21C15/22
CPC分类号： Y02E30/31

9. 发明专利

JPS60146194A RECIRCULATING PIPING SYSTEM OF BOILING WATER TYPE NUCLEAR POWER PLANT 失效
公开(公告)号：JPS60146194A
公开(公告)日：1985-08-01
申请号：JP196384
申请日：1984-01-11
申请人： HITACHI LTD
发明人： ITOU TAKASHI , SAGAWA WATARU , NEMIZAWA ISAO , KOSUGI NOBUO , NARUMI YUUICHI
IPC分类号： G21C15/22

10. 发明专利

JPS6088389A RECIRCULATING PIPING SYSTEM OF BOILING-WATER TYPE NUCLEAR POWER PLANT 失效
公开(公告)号：JPS6088389A
公开(公告)日：1985-05-18
申请号：JP19660183
申请日：1983-10-19
申请人： HITACHI LTD
发明人： SAGAWA WATARU , YOSHINAGA YOUICHI , MIZUNO TADASHI , MIURA SEIJI , KOTANI KOUICHI , KODAMA IKUO , NEMEZAWA ISAO , IZUMIYAMA AKIMASA , SUZUKI KOUICHI , KOSUGI NOBUO , TAKEHARA HIDETOSHI , ITOU TAKASHI
IPC分类号： G21C15/22 , G21C15/00 , G21C19/28 , G21D1/00

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