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    • 1. 发明专利
    • Fence structure of fuel storage pool
    • 燃料储存池的结构
    • JP2006317230A
    • 2006-11-24
    • JP2005138780
    • 2005-05-11
    • Toshiba Corp株式会社東芝
    • NAKAJIMA MASATAKAYONEDA TETSUYATAKAGI KAORUMATSUKI HIROSHITAKAHASHI YUTAKANIWA HIROSHI
    • G21C19/07
    • PROBLEM TO BE SOLVED: To reduce possibility of overspill to lower stories and possibility of influence to important facilities on the lowermost story by suppressing or mitigating as much as possible, the overspill due to sloshing in a fuel storage pool in a nuclear power station. SOLUTION: The structure comprises a weir 2 provided around the fuel storage pool 1 in the nuclear power station, a fuel exchange floor 3 provided at a lower arrangement than the weir around the weir, a projected plate 4 fixed along the surface of the weir and the fuel exchange floor and a fence 5 fixed at the top of the weir of the projected plate. To the fence 5, an overspill water suppression member 12, which consists of a sheet or a panel for suppressing overspilling outside the pool when the pool water level rises due to sloshing, is provided. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了通过抑制或减轻尽可能的方式减少泄漏事故对最低层故事的重要设施的低层故障和影响的可能性,由于在核电的燃料储存池中晃动而导致的溢出 站。 解决方案:该结构包括设置在核电站中的燃料储存池1周围的堰2,设置在比堰周围的堰更低的布置的燃料更换底板3,沿着堰的表面固定的突出板4 堰和燃料交换地板和固定在突出板堰顶部的围栏5。 提供了一种溢流水抑制构件12,其在由于晃动而使池水位上升时,由片材或面板构成,用于抑制池外溢出。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Sloshing overflow prevention device
    • 清洗溢流预防装置
    • JP2006329799A
    • 2006-12-07
    • JP2005153328
    • 2005-05-26
    • Toshiba Corp株式会社東芝
    • TSUYUKI AKIRATAKAGI KAORUTAKAHASHI YUTAKANAKAJIMA MASATAKAMATSUKI HIROSHIYONEDA TETSUYANIWA HIROSHIMAEDA YUJI
    • G21C19/07
    • PROBLEM TO BE SOLVED: To reduce a probability of overflow to a lower floor and a probability of exerting an influence on important facilities on the lowermost underground floor by suppressing an overflow amount by sloshing as much as possible, and to thereby improve reliability in a nuclear power plant or the like.
      SOLUTION: A design is adopted in consideration of allowance to some degree from the surface 2 of water stored in a container 1 as a fuel storage pool to the floor surface 3, and a tool 4 for overflow prevention higher than the water surface 2 is installed near the container 1 edge. The tool 4 has an erected wall 4 erected from the container edge, and a moving wall 7 movable vertically along the erected wall trough a sliding connector 6, and an approximately-horizontal sideward piece 7a for sloshing suppression is provided on the upper end of the moving wall 7.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过尽可能地通过晃动来抑制溢出量来降低溢出到较低楼层的概率和对最底层地板上的重要设施施加影响的可能性,从而提高可靠性 在核电站等中。

      解决方案:考虑到从存储在作为燃料储存池的容器1中的水的表面2到地面3的某种程度上允许的设计,以及用于防溢水的工具4高于水面 2安装在容器1边缘附近。 工具4具有从容器边缘竖立的直立壁4,以及沿着竖立的壁垂直移动的滑动连接器6的移动壁7,以及用于晃动抑制的大致水平的侧向件7a设置在 移动墙7.版权所有(C)2007,JPO&INPIT

    • 8. 发明专利
    • NUCLEAR REACTOR CONTAINER
    • JPH02266297A
    • 1990-10-31
    • JP8676589
    • 1989-04-07
    • TOSHIBA CORP
    • NAKAJIMA MASATAKA
    • G21C13/024
    • PURPOSE:To reduce the earthquake response of a reactor core and an inter-dry well piping system by varying the rigidity of a stabilizer according to the vibration analytic result of detected earthquake motion as to the earthquake- resistance structure of the nuclear reactor container. CONSTITUTION:A hydraulic actuator 14 which has a hydraulic piston and a cylinder are installed at the fitting part on the side of the nuclear reactor container 2 and a rod 16 which is connected to the piston is fixed to the upper end of a nuclear reactor shield wall 8. The actuator 14 sends the electric signal from a process computer installed in a nuclear reactor building 1 to a hydraulic pressure source to control its rigidity. A response monitor detects earthquake motion, feeds it back at need, and controls the rigidity of the stabilizer 10. Consequently, the nuclear reactor pressure body main body and in-pile structure are reduced in earthquake response to improve the safety of the nuclear reactor.