公开(公告)号：EP3067895B1

公开(公告)日：2017-12-06

申请号：EP16159083.1

申请日：2016-03-08

申请人： Hitachi-GE Nuclear Energy, Ltd.

发明人： YAMADA, Takeshi ,  SAKAI, Takeshi ,  FUJII, Tadashi

IPC分类号： G21C9/016 ,  G21C15/18

CPC分类号： G21C9/016 ,  G21C15/18 ,  G21C15/182 ,  Y02E30/40

摘要： Provided is a primary containment vessel including a drain sump for collecting leaking water in the primary containment vessel and capable of maintaining a function of supporting a reactor pressure vessel by protecting a pedestal from heat of a molten fuel falling in a lower drywell at the time of occurrence of a serious accident. The primary containment vessel includes: a sump cover 18a for covering a drain sump 18 from above a floor surface of a lower drywell 5; a floor protection material 12a integrally formed with the sump cover and supported to form a floor surface gap 14a with the floor surface of the lower drywell; a wall protection material 12b integrally formed with the sump cover and erected on an upper surface outer edge portion of the floor protection material to form a wall surface gap 14b with an inner wall surface of a pedestal 9; and a water injection mechanism 15 for injecting cooling water into the floor surface gap and the wall surface gap.

公开(公告)号：EP3067895A1

公开(公告)日：2016-09-14

申请号：EP16159083.1

申请日：2016-03-08

申请人： Hitachi-GE Nuclear Energy, Ltd.

发明人： YAMADA, Takeshi ,  SAKAI, Takeshi ,  FUJII, Tadashi

IPC分类号： G21C9/016 ,  G21C15/18

CPC分类号： G21C9/016 ,  G21C15/18 ,  G21C15/182 ,  Y02E30/40

摘要： Provided is a primary containment vessel including a drain sump for collecting leaking water in the primary containment vessel and capable of maintaining a function of supporting a reactor pressure vessel by protecting a pedestal from heat of a molten fuel falling in a lower drywell at the time of occurrence of a serious accident. The primary containment vessel includes: a sump cover 18a for covering a drain sump 18 from above a floor surface of a lower drywell 5; a floor protection material 12a integrally formed with the sump cover and supported to form a floor surface gap 14a with the floor surface of the lower drywell; a wall protection material 12b integrally formed with the sump cover and erected on an upper surface outer edge portion of the floor protection material to form a wall surface gap 14b with an inner wall surface of a pedestal 9; and a water injection mechanism 15 for injecting cooling water into the floor surface gap and the wall surface gap.

摘要翻译： 本发明提供一种主要安全壳，其包括用于收集初级容纳容器中的泄漏水的排水槽，并且能够通过保护底座免受落在下部干井中的熔融燃料的热量而保持反应堆压力容器的功能。 发生严重事故。 主要安全壳包括：用于从下部干井5的地板表面上方覆盖排水池18的贮槽盖18a; 底板保护材料12a与贮槽盖一体地形成并被支撑以形成具有下部干井的地板表面的地板表面间隙14a; 壁保护材料12b，一体地形成与贮槽盖并且竖立在地板保护材料的上表面外边缘部分上，以形成具有底座9的内壁表面的壁表面间隙14b; 以及用于将冷却水喷射到地板表面间隙和壁表面间隙中的注水机构15。