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    CORE CATCHER AND ITS MANUFACTURING METHOD, AND REACTOR CONTAINER AND ITS MODIFYING METHOD
    2.
    发明公开
    CORE CATCHER AND ITS MANUFACTURING METHOD, AND REACTOR CONTAINER AND ITS MODIFYING METHOD 有权
    核心捕捉器及其制造方法，反应器容器及其修改方法

    公开(公告)号：EP1988551A1

    公开(公告)日：2008-11-05

    申请号：EP07713497.1

    申请日：2007-02-22

    申请人： Kabushiki Kaisha Toshiba

    发明人： SATO, Takashi ,  HAMAZAKI, Ryoichi ,  TAHARA, Mika ,  KOJIMA, Yoshihiro ,  OIKAWA, Hirohide ,  KURITA, Tomohisa ,  YOKOBORI, Seiichi ,  SUZUKI, Yuka

    IPC分类号： G21C9/016

    CPC分类号： G21C9/016 ,  G21C21/00 ,  G21Y2002/201 ,  G21Y2004/30 ,  Y02E30/40

    摘要： Core debris generated during a molten reactor core in a reactor containment vessel penetrating the reactor containment vessel is configured to be caught by a core catcher located beneath the reactor containment vessel which has a main body (20) having first stage cooling water channels (21 a) and second stage (21 b) surrounded by cooling fins (31) extending radially. The number of the second stage cooling channels (21 b) is larger than that of the first stage cooling channels (21a). Cooling water is supplied from a cooling water injection opening (22) and distributed to the first cooling water channels (21 a) at a distributor (10). An intermediate header (21) is formed between the first and the second cooling water channels (21 a, 21 b), and the cooling water is distributed to the second cooling water channels (21 b) uniformly.

    摘要翻译： 在穿过反应堆安全壳的反应堆安全壳的熔融堆芯中产生的堆芯碎片被配置为被位于反应堆安全壳下方的堆芯捕获器捕获，该堆芯捕集器具有主体（20），该主体具有第一级冷却水通道（21a ）和由径向延伸的冷却翅片（31）围绕的第二级（21b）。 第二级冷却通道（21b）的数量大于第一级冷却通道（21a）的数量。 冷却水由冷却水喷射口22供给，在分配器10中被分配到第一冷却水流路21a。 在第一冷却水通路21a和第二冷却水通路21b之间形成有中间集管21，冷却水均匀地分配到第二冷却水通路21b。