核岛内部水淹分析方法

Analytical Way For Internal Flooding In Nuclear Island

核岛内部水淹可以导致核岛内多系统设备产生共模故障,对电站的安全运行存在潜在的威胁。本文介绍了核岛内部水淹的分析方法,通过定义核岛内部水淹源、水淹分区与漫延路径来确定水淹高度,从而为水淹对核安全系统设备的影响程度提供具体依据,以便后续在设计上采取措施,避免或消除内部水淹对核岛的影响。

Water flooding occurred in nuclear island threatens safe operation of the power plant by causing common-mode faults in many systems and equipments. This paper introduces way of analysis for internal flooding in nuclear island ： to calculating of flooding height by considering the flooding source, flooding area and spread route, which determine the degree of flooding influence on safety-related SSCs in nuclear island. As a result, the protective measures can be taken in the design to avoid or eliminate the potential hazard from the internal flooding in nuclear island.