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11. 发明专利

JPS62169080A STOP DEVICE FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS62169080A
公开(公告)日：1987-07-25
申请号：JP1019986
申请日：1986-01-22
申请人： HITACHI LTD
发明人： ITOOKA SATOSHI , OTSUKI ATSUSHI , KIDOI TAKASHI , HARADA KIYOSHI
IPC分类号： G21C7/14 , G21C9/02

12. 发明专利

JPS6256895A CONTROLLER FOR OUTPUT FROM NUCLEAR REACTOR 失效
公开(公告)号：JPS6256895A
公开(公告)日：1987-03-12
申请号：JP19651585
申请日：1985-09-05
申请人： CENTRAL RES INST ELECT , HITACHI LTD
发明人： HATTORI SADAO , HARADA KIYOSHI , OTOMO YASUMASA , KIDOI TAKASHI
IPC分类号： G21C7/14 , G21C9/02

13. 发明专利

JPS58150891A CONTROL ROD DRIVE MECHANISM 失效
公开(公告)号：JPS58150891A
公开(公告)日：1983-09-07
申请号：JP3236982
申请日：1982-03-03
申请人： HITACHI LTD
发明人： KIDOI TAKASHI
IPC分类号： G21C7/14 , G21C1/02

14. 发明专利

JPS5467843A SEAL STRUCTURE BY BELLOWS 失效
公开(公告)号：JPS5467843A
公开(公告)日：1979-05-31
申请号：JP13349177
申请日：1977-11-09
申请人： HITACHI LTD
发明人： KIDOI TAKASHI
IPC分类号： F16J15/52
摘要： PURPOSE:A seal structure by bellows devised to expand bellows cores uniformly at the rapid extension of a stroke by equipping a buffer spring against the quick operation of an action cylinder on a slider guide. CONSTITUTION:In this device, an action cylinder 5 and a static cylinder 6 are arranged to be fitted with each other, and several bellows cores 1 are equipped between the inner and the outer position of both cylinders 5 and 6 with upper and lower metal fixtures 2 and 3, between which slider guides 4 and 4A with stoppers 9 and 9A to limit the extension of the bellows scores 1 are provided. Here, a compression spring 11 is arranged between the above-written stopper 9 and a spacer 10, and between the stopper 9A and an ajoining slider guide 4A. In this construction, actions of bellows cores 1 on the end part are softened against the quick operation for them for preventing their unbalanced transformation.

15. 发明专利

JPH03279893A CONTROL ROD DRIVING MECHANISM 失效
公开(公告)号：JPH03279893A
公开(公告)日：1991-12-11
申请号：JP8159690
申请日：1990-03-29
申请人： HITACHI LTD , HITACHI SETSUBI ENG KK
发明人： HARADA KIYOSHI , KIDOI TAKASHI , SASAKI MASANAGA
IPC分类号： G21C7/14
摘要： PURPOSE:To obtain a shortened control rod driving mechanism driving part by providing a stroke operation mechanism equipped with a ball screw for stroke operation, etc., a control rod driving shaft and a ratch shaft which are put in a penetration state so that they move up and down relatively, and a latch mechanism. CONSTITUTION:For up-down driving as normal driving, the rotation of a stroke motor 4 is transmitted from a ball screw nut 2 to the ball screw 1 with a spline and then transmitted to a scramming mechanism 11 through the latch mechanism 16. The mechanism 11 consisting of a magnet 25 and a link mechanism 26 energizes the magnet 25 in normal operation to close the mechanism 26 and the up-down driving of the mechanism 16 is transmitted to a driving shaft 19 and the latch shaft 20 as it is. For scramming, the magnet 25 in the mechanism 11 is demagnetized to release the mechanism 26 and the driving shaft 19, etc., is fallen integrally with a control rod 22 which is positioned below it. When fuel is replaced, the latch shaft 20 is pressed up to disconnect the control rod 22 and driving shaft 19 from each other and then the mechanism 16 is lifted. A latch motor 9 is operated after the control rod 22 and driving shaft 19 are disconnected to make a driving shaft lock mechanism 12 operate an armature 27, thereby preventing the driving shaft 19 from falling.

16. 发明专利

JPH02245695A CONTROL ROD SUPPORTING OF NUCLEAR REACTOR 失效
公开(公告)号：JPH02245695A
公开(公告)日：1990-10-01
申请号：JP6623189
申请日：1989-03-20
申请人： HITACHI LTD
发明人： SEKI OSAMU , ITOOKA SATOSHI , HARADA KIYOSHI , KIDOI TAKASHI
IPC分类号： G21C7/14
摘要： PURPOSE:To support firmly a control rod of a fast breeder reactor by connecting the control rods to an attracted body to be attracted by a magnet, so as to be able to be swayed freely. CONSTITUTION:A main body 3 of a control rod containing a neutron absorbing material, is inserted into a lower guide tube 1 adjoining a nuclear fuel assembly 9 that constitutes a core of a fast breeder reactor, so as to be freely movable upwardly and downwardly. An upper end of the lower guide tube 1 is provided with a handling head part 1 to be prepared for handling the lower guide tube by other equipments. A whole control rod is constituted by attaching a lower end of a connecting member 23 of the control rod which passes through the handling head 1a to the main body 3 of the control rod. To the upper end of the connecting member 23 of the control rod, an armature 7 which is a supporting metal fixture of the control rod, is connected. By a magnetic attraction of an attracted body (the armature 7) by a magnet 8, the control rod 3 connected to the attracted body, is supported, and even if a bending moment works onto the control rod 3 under a supported condition, the control rod just sways without the bending movement being transferred to the attracted body, and therefore the attracted body is scarcely to be torn off from the magnet 8 and the control rod is firmly supported.

17. 发明专利

JPS6330782A CONTROL ROD FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS6330782A
公开(公告)日：1988-02-09
申请号：JP17365786
申请日：1986-07-25
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ENOKIDA HIROMI , KIDOI TAKASHI , IKEUCHI TOSHIAKI , HARADA KIYOSHI , SATO HARUO
IPC分类号： G21C7/10

18. 发明专利

JPS6247585A FUEL AGGREGATE 失效
公开(公告)号：JPS6247585A
公开(公告)日：1987-03-02
申请号：JP18723985
申请日：1985-08-28
申请人： CENTRAL RES INST ELECT , HITACHI LTD , HITACHI ENG CO LTD
发明人： HATTORI SADAO , KIDOI TAKASHI , HARADA KIYOSHI , SHIMIZU SADAHITO , ENOKIDA HIROMI
IPC分类号： G21C7/02 , G21C3/30 , G21C7/06

19. 发明专利

JPS6120832B2 JPS6120832B2 - 失效
公开(公告)号：JPS6120832B2
公开(公告)日：1986-05-23
申请号：JP1246378
申请日：1978-02-08
申请人： Hitachi Ltd
发明人： MYABE MASAO , KIDOI TAKASHI
IPC分类号： G21C7/14
CPC分类号： Y02E30/39
摘要： PURPOSE:To prevent the scram from being caused by the drop-off of a control rod driving shaft due to a trouble, by providing in an optional position within the range of motion of a control rod driver a means for automatically operating a wrong scram preventer. CONSTITUTION:The electric wrong scram preventer comprises a scram lock-up casing 28 engaged with a latch push plate 13, scram lock-up claws 26 pivoted to support rods 27, and a grabbed annular projection 30 provided on the upper end of the control rod driving shaft 14. When an electromagnet 10 is energized, the grabbed annular projection is set in such a position that the scram can be locked up. Then, the scram lock-up casing 28 moves upward and the scram lock-up claws 26 hold the annular projection 30 of the control rod driving shaft 14 to prevent the shaft 14 from dropping off.

20. 发明专利

JPS6112151B2 JPS6112151B2 - 失效
公开(公告)号：JPS6112151B2
公开(公告)日：1986-04-07
申请号：JP13349177
申请日：1977-11-09
申请人： Hitachi Ltd
发明人： KIDOI TAKASHI
IPC分类号： F16J15/52

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