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    CORE CATCHER AND ITS MANUFACTURING METHOD, AND REACTOR CONTAINER AND ITS MODIFYING METHOD
    1.
    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。

    DRIVE SYSTEM FOR SAFETY VALVE
    4.
    发明公开
    DRIVE SYSTEM FOR SAFETY VALVE 有权
    ANTRIEBSSYSTEMFÜREIN SICHERHEITSVENTIL

    公开(公告)号：EP2192594A1

    公开(公告)日：2010-06-02

    申请号：EP08765687.2

    申请日：2008-06-17

    申请人： Kabushiki Kaisha Toshiba

    发明人： YAMAZAKI, Hiroshi ,  SHIMIZU, Takeo ,  SUZUKI, Yuka

    IPC分类号： G21D3/04 ,  G21D1/00

    CPC分类号： G21D3/04 ,  F16K17/10 ,  G21Y2002/206 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/40 ,  Y10T137/7734 ,  Y10T137/7762

    摘要： A safety valve drive system is operated such that a safety valve of a nuclear power plant is opened by supplying a driving gas by using a pilot valve at an occurrence of an accident or a transient state to thereby protect a reactor against pressure application. The safety valve drive system is provided with a safety valve drive unit, as a function of actuating the safety valve, and cables. The safety valve drive unit actuates in a manner that the safety valve is opened in response to respective auto-depressurization system actuating signals for two or more segments among respective auto-depressurization system actuating signals for four segments, and is closed if an auto-depressurization system actuating signal for one or less segment among the auto-depressurization system actuating signals for the four segments is received. The cables are connected to the safety valve drive unit and used to transfer the auto-depressurization system actuating signals for the four segments.

    摘要翻译： 操作安全阀驱动系统，使得在发生事故或暂态时通过使用先导阀供应驱动气体来打开核电站的安全阀，从而保护反应堆免受压力的应用。 安全阀驱动系统设有安全阀驱动单元，作为启动安全阀和电缆的功能。 安全阀驱动单元以使得安全阀响应于相应的自动减压系统致动信号而打开的方式启动，用于四个段的相应的自动减压系统致动信号中的两个或更多个段，并且如果自动减压 接收用于四个段的自动减压系统致动信号中的一个或更少段的系统致动信号。 电缆连接到安全阀驱动单元，用于传输四段的自动减压系统启动信号。