公开(公告)号：US06795518B1

公开(公告)日：2004-09-21

申请号：US09803418

申请日：2001-03-09

申请人： Lawrence E. Conway ,  Mario D. Carelli ,  Carlo V. Lombardi ,  Luca Oriani ,  Marco Ricotti

发明人： Lawrence E. Conway ,  Mario D. Carelli ,  Carlo V. Lombardi ,  Luca Oriani ,  Marco Ricotti

IPC分类号： G21C9012

CPC分类号： G21C1/32 ,  G21C9/00 ,  G21C15/18 ,  G21Y2002/301 ,  G21Y2002/302 ,  G21Y2002/50 ,  G21Y2004/30 ,  G21Y2004/302 ,  G21Y2004/402 ,  Y02E30/32

摘要： Passive emergency cooling in response to a loss of coolant accident (LOCA) in a PWR, having an integral reactor pressure vessel incorporating the steam generators and housed in a small high pressure containment vessel, is provided by circulating cooling water through the steam generators and heat exchangers in an external tank to cool the reactor vessel at a rate sufficient to lower the pressure in the reactor vessel below that in containment to reverse mass flow out of the reactor vessel and keep the reactor core covered without the addition of makeup water. Suppression tanks inside the small high pressure containment structure limit peak blowdown pressure in containment and provide flood-up water and gravity fed makeup water to cool the core. Diverse cooling is provided by natural circulation of air, and if needed, water, over the spherical containment structure.

摘要翻译： 响应于PWR中的冷却剂事故（LOCA）的被动应急冷却，其具有并入蒸汽发生器并且容纳在小型高压容器中的整体反应堆压力容器，通过循环冷却水通过蒸汽发生器和热量 在外部罐中的交换器以足以将反应器容器中的压力降低到低于容器的压力的速率冷却反应器容器以使质量流出反应器容器流出并且保持反应堆芯不被添加补充水。 抑制罐内的小型高压遏制结构限制了遏制的顶峰排污压力，并提供补水和重力补给补水以冷却核心。 不同的冷却是由空气的自然循环提供的，如果需要的话，水可以在球形容纳结构之上。