核岛重要厂用水系统停泵水锤计算分析

摘要

核岛重要厂用水（SEC）系统是核岛向最终热阱（大海）的直流海水输热系统、安全级系统，必须长期稳定、安全、可靠的运行。文章通过数值模拟的方法计算SEC系统停泵时的水锤过程，分析空气阀、单向调压水箱、缓闭止回阀水锤防护方案在SEC系统中的适用性。%The essential servioe water system （SEC） is the DC water heat transport system from nuclear island to sea. SEC is the safety related system, which must operate in long- term stability, security and reliable status. The pump-stop water hammer of SEC system is calculated with numerical simttlation and the applicabiliW of water hammer protection measures, such as air valve, one--way surge tank and slow close check valve, is analyzed in SEC system.