The two method of the flow balance calculation of the closed cooling water system in conventional island for nuclear power plant is described.At the same time by means of a nuclear power project overview of the technical points of the closed cooling water system using orifice plate flow regulation.Finally,analysis of the advantages and disadvantages of each of these two ways,to provide the basis for future nuclear power closed water system engineering.Alpha%本文指出了目前核电机组常规岛闭式循环冷却水系统的流量分配的两种方式。同时借助某核电工程,概述了闭式冷却水系统上采用孔板作为流量调节方式的技术要点。最后分析了这两种方式各自的优缺点,为将来核电闭式水系统的工程设计提供依据。
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