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1. 发明专利

JPH01165998A SUPPORT DEVICE OF STRUCTURE IN NUCLEAR REACTOR CONTAINING VESSEL 失效
公开(公告)号：JPH01165998A
公开(公告)日：1989-06-29
申请号：JP32403687
申请日：1987-12-23
申请人： HITACHI LTD
发明人： KUME TADASHI , FURUKAWA HIDEYASU , NAGATA TETSUYA
IPC分类号： G21C13/02 , G21D1/00
摘要： PURPOSE:To realize a support structure for effectively transmitting the load from an inner structured to a base mat by transmitting the load or reaction force from a pipe whipless trend structure to the base mat through structural materials. CONSTITUTION:In a dry well shell 2 of a nuclear reactor containing vessel, a pipe whipless trend structure 11 is connected to the upper end of an anchor beam 17 in the inner part of a reinforced concrete part 8. The beam 17 is connected to a horizontal beam 19 and one end of the beam 19 is joined to the outer steel plate of a pedestal 9 on the upward part of an inner skirt 15. The upper end of a vertical beam 20 is connected to the beam 19, the lower end of the beam 20 is joined to the dry well shell 2 and an outside skirt 18 on a base mat 12 for supporting the shell 2 is provided just beneath the beam 20. Therefore, the load applied to the structure 11 is transmitted to the concrete part 8 and the beam 20 from the beam 19 through the beam 17, and further the load transmitted to the beam 20 is conveyed to the base mat 12 from the skirt 18 through the dry well shell 2.

2. 发明专利

JP2006098247A Closer for suction strainer in nuclear reactor containment vessel suppression chamber 审中-公开
标题翻译：核反应堆容器中的抽吸过滤器封闭容器压舱
公开(公告)号：JP2006098247A
公开(公告)日：2006-04-13
申请号：JP2004285644
申请日：2004-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NARITA SHINTARO , KUME TADASHI , OSAKA MASAAKI , SUZUKI AYAKO
IPC分类号： G21C15/18 , G21C9/004
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To rapidly and simply inspect submerged valves in a core cooling system for emergency with water shut off from a suppression chamber of a nuclear reactor containment vessel in inspecting the cooling system in a nuclear power plant.
SOLUTION: A suction strainer part of the core cooling system for emergency in a nuclear reactor comprises a pipe 30 for together connecting the interior and exterior of the suppression chamber 3 attached to the nuclear reactor containment vessel, a T-pipe 31 connected to the pipe 30, and a porous body 4 connected to an end of the T-pipe 31. A connecting pipe 1 is connected between the porous body 4 and the T-pipe 31. A closing plate is inserted into a slit 6 provided in the connecting pipe 1 to block a flow path between the porous body 4 and the T-pipe 31 by the closing plate. Such a blockade prevents pooled water in the suppression chamber 3 from flowing into the cooling system for emergency and disassembly and inspection are executed in this state on the submerged valves in the system.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了快速简单地检查核心冷却系统中的潜水阀，以便紧急情况下从核反应堆安全壳的抑制室切断水，以检查核电厂的冷却系统。解决方案：用于核反应堆应急的核心冷却系统的吸入过滤器部分包括管30，用于将连接到核反应堆容纳容器的抑制室3的内部和外部连接在一起，T管31连接与管30连接的多孔体4和与T型管31的端部连接的多孔体4.连接管1连接在多孔体4与T型管31之间。连接管1通过封闭板阻挡多孔体4和T形管31之间的流动路径。这种封锁防止了抑制室3中的积水流入冷却系统中，以便在该状态下在系统中的潜水阀上执行紧急拆卸和检查。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JPH0631779B2 失效
公开(公告)号：JPH0631779B2
公开(公告)日：1994-04-27
申请号：JP16400289
申请日：1989-06-28
申请人： HITACHI LTD
发明人： KUME TADASHI , FURUKAWA HIDEYASU
IPC分类号： G21C11/02

4. 发明专利

JPH02264887A STRUCTURE OF LINER ANCHOR OF CONCRETE CONTAINER 失效
公开(公告)号：JPH02264887A
公开(公告)日：1990-10-29
申请号：JP8482489
申请日：1989-04-05
申请人： HITACHI LTD
发明人： KUME TADASHI , FURUKAWA HIDEYASU
IPC分类号： G21C13/00
摘要： PURPOSE:To enable increase in the resistance of a liner plate to an internal pressure load by a method wherein a restriction that a distance to the position of a liner anchor should be 100mm or longer is provided for the position of the liner anchor in the vicinity of an opening reinforcing plate. CONSTITUTION:An opening reinforcing plate 7 is provided in the shape of a disk around a through part 5 and a load applied from the through part 5 is transmitted thereby to a concrete container 2 through the intermediary of a liner anchor 6. This plate has a structure of being thicker sufficiently than a liner plate 3 and rigid. The anchor 6 provided outside the reinforcing plate 7 is installed so that a distance L from the outside diameter of the reinforcing plate 7 to the position of the liner anchor is L=100mm. By providing a restriction for the fitting position of the anchor 6 in this way, a distortion occurring in the plate 2 is mitigated and early breakdown of the plate 3 is prevented.

5. 发明专利

JPH08211180A DEVICE FOR PREVENTING WATER FROM ENTERING REACTOR CONTAINMENT SAND CUSHION PART 失效
公开(公告)号：JPH08211180A
公开(公告)日：1996-08-20
申请号：JP1492995
申请日：1995-02-01
申请人： HITACHI LTD
发明人： OSAKA MASAAKI , SAITO KOICHI , MATSUZAKI TETSUO , KUME TADASHI
IPC分类号： G21C13/024
摘要： PURPOSE: To improve reliability of flooding prevention function of flooding prevention cover in reactor containment sand cushion part. CONSTITUTION: In a flooding prevention device in a reactor containment 1 sand cushion part 3, upper and lower two ring shape flooding prevention cover are provided above the sand cushion part 3. One of the flooding prevention cover 4 is surrounded by biological shield and the inner surface of the other flooding prevention cover 5 is structured to be fixed detachably to the reactor containment 1. The unfixed ends of the both flooding prevention covers 4 and 5 are overlapped in radial direction and a gap is provided so as not to interfere with each other. The lower flooding prevention cover 4 is provided with one or a plurality of drain pipes 6 provided with a reverse flow preventor and a drain collector on the downstream side of it.

6. 发明专利

JPH02136789A OUTFLOW PREVENTIVE WALL FOR REACTOR CORE MELT 失效
公开(公告)号：JPH02136789A
公开(公告)日：1990-05-25
申请号：JP29001688
申请日：1988-11-18
申请人： HITACHI LTD
发明人： KUME TADASHI , FURUKAWA HIDEYASU
IPC分类号： G21C9/016
摘要： PURPOSE:To avoid a direct contact with a nuclear reactor container caused by a reactor core melt under a severe accident, and to prevent the damage in a short time by providing an outflow preventive wall on reinforced concrete of the bottom part of a dry well. CONSTITUTION:The outflow preventive wall 12 is made of concrete or refractory brick, etc., and its lower part is allowed to adhere closely to reinforced concrete 7 of the bottom part in a dry well. Therefore, a reactor core melt is accumulated between a reactor pressure vessel pedestal 8 and the outflow preventive wall 12, a direct contact with a reactor container caused by the reactor core melt is avoided and the damage in a short time is prevented. In such a way, under a severe accident, the direct contact with the reactor container caused by the reactor core melt is avoided, and the damage in a short time can be prevented.

7. 发明专利

JPS6474498A METHOD FOR CONSTRUCTING REACTOR CONTAINER MADE OF REINFORCED CONCRETE 失效
公开(公告)号：JPS6474498A
公开(公告)日：1989-03-20
申请号：JP23318587
申请日：1987-09-17
申请人： HITACHI LTD
发明人： NAGATA TETSUYA , FURUKAWA HIDEYASU , KUME TADASHI , SAITO KOICHI , MASUDA MINORU
IPC分类号： G21C13/00
摘要： PURPOSE:To shorten the period for constructing a reactor container by installing threaded reinforcing bar couplers at one end of reinforcing bars near the surface of the reactor container and joining the same to the floor slab reinforcing bars of a reactor building, then constructing the reactor container. CONSTITUTION:The threaded reinforcing bars 10 are used as the reinforcing bars of the floor slab 2 in order to construct the floor slab 2 of the reactor building 1 after the reactor container 3 is erected. The bars 10 are connected to the threaded reinforcing bar couplers 12 exposed on the concrete surface of the container 3. The reinforcing bars 10 integral with the reinforcing bars 11 of the container 3 are projected from the concrete surface and the arrangement of reinforcement of the floor slab 2 is executed. The concrete of the floor slab 2 is then placed and the building 1 is erected while the other parts of the buildings 1 are constructed. The construction of the container 3 can then be progressed independently from the building 1. The period for constructing the container 3 is thereby shortened.

8. 发明专利

JP2005282543A Suction strainer 审中-公开
标题翻译：抽吸过滤器
公开(公告)号：JP2005282543A
公开(公告)日：2005-10-13
申请号：JP2004101798
申请日：2004-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSAKA MASAAKI , KUME TADASHI
IPC分类号： G21D1/00 , B01D35/02 , F04D29/70
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To economically achieve capacity increase of a suction strainer. SOLUTION: This suction strainer 10 filtrates water from an emergency interception water source for a nuclear power plant. A strainer flange (water intake) 11, a connection tube 12, a disk 13 and one or more porous cylinder(s) 14 are arranged in series on respective axes. A reinforcement cylinder 15 arranged on an axis of the one or more porous cylinder 14 or inside or outside of a connection part thereof, a connection disk 16 inside of a tip of the porous cylinder 14, a porous cone 17 of which large diameter part is arranged inside of the connection disk 14 and of which small diameter part is arranged on a strainer flange (water intake) side, and a closure plate 18 on a tip of the porous cone 17 are included. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了经济地实现吸滤器的容量增加。解决方案：该抽吸过滤器10从用于核电厂的紧急拦截水源中滤出水。过滤器法兰（进水口）11，连接管12，盘13和一个或多个多孔圆筒14在各轴上串联布置。布置在一个或多个多孔圆筒14的轴线上或其连接部分的内部或外部的加强圆筒15，多孔圆筒14的尖端内部的连接圆盘16，多径圆筒体17的大直径部分布置在连接盘14的内部并且其小直径部分布置在过滤器法兰（进水）侧上，并且包括多孔锥体17的尖端上的封闭板18。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JPH05302990A 失效
公开(公告)号：JPH05302990A
公开(公告)日：1993-11-16
申请号：JP10953492
申请日：1992-04-28
申请人： HITACHI LTD
发明人： KUME TADASHI , FURUKAWA HIDEYASU
IPC分类号： G21C13/00
摘要： PURPOSE:To make it easy to construct lower drywell access tunnel for a reactor containment. CONSTITUTION:Each end part 6, 7 and center part 8 of a lower drywell access tunnel are introduced separately. Each end 6, 7 is placed first to a reactor containment 3 and the basement 4 of a reactor body. The distance between the surfaces of each end 6, 7 is then measured and the center part 8 length is adjusted to it for fabrication. The center part 8 is fixed to each end 6, 7. As each part 6, 7, 8 of the lower drywell access tunnel is introduced separately, no interaction with the reactor containment 3 and the reactor body basement 4 is expected during the introduction. Furthermore, the construction is simplified because the both ends 6, 7 with complicated shape are placed first.

10. 发明专利

JPS63206606A STRUCTURE OF CONSTRUCTION 失效
公开(公告)号：JPS63206606A
公开(公告)日：1988-08-25
申请号：JP3799387
申请日：1987-02-23
申请人： HITACHI LTD
发明人： NAGATA TETSUYA , FURUKAWA HIDEYASU , KUME TADASHI
IPC分类号： G21C13/00 , E04H7/00 , G01B21/08
摘要： PURPOSE:To enable the easy measurement of the thickness of a plate (steel plate) by a method wherein a hole extending from the surface of concrete to the surface of the plate is provided in the concrete covering the plate. CONSTITUTION:Dry well bottom concrete 5 is deposited in the bottom part of a dry well 2 for a reactor container during the construction of a plant. Prior to the deposition of this concrete 5, a pipe is set as a sleeve 11 opened in both ends. The sleeve 11 is so set that the upper end projects above the surface of the concrete 5 while the lower end contacts with the inner surface of a spherical shell 10 of the lower part of the dry well. The sleeve 11 is set at several representative places of the shell 10 including a place under a pedestal 4 of a reactor pressure vessel. Then, a probe 13 of an ultrasonic thickness meter 12 is made to contact the inner wall surface of the shell 10 to measure the plate thickness of the shell 10. Besides, a flange 15 is provided at the upper end of the sleeve 11, and a closing plate 16 is fitted to the flange 15 with bolts except for the time of measurement, so as to prevent the inflow of water.

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