Safety Analysis of NPP Spent Fuel Pit When Losing of Final Heat Trap
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摘要: 压水堆核电站一回路和乏燃料贮存水池的设备冷却水由海水冷却器提供。本文假设事故工况下,海水冷却器突然停止工作,利用热平衡方程,计算并分析了乏燃料贮存水池运行的安全性及作为冷却水源冷却其它一回路重要用户的可能性。计算表明:在本文的各种工况下,乏燃料贮存水池运行是安全的;除一种工况外,硼水还具有冷却其它设备的能力。Abstract: The equipment cooling water used in primary circuit loop and spent fuel system is provided by seawater cooler in nuclear power station.A hypothesis is the seawater cooler quit operation as certain accidents occurred.By employing heat balance equation,we have calculated and analyzed safety of the spent fuel pit and possibility of cooling other important primary circuit loop user.Our results show that the spent fuel pit operates safely at various situations in this paper.Except one condition,cooling water in the spent fuel pit is available to cool other equipments.
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Key words:
- Nuclear power station /
- Spent fuel pit /
- Safety analysis /
- Calculation
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