核动力装置二回路给水系统水锤动态计算分析

Dynamic analysis of water hammer to feed water system of the nuclear power plant

以二回路给水系统为研究对象,建立了给水系统的管网模型及停泵后的泵前流量动态变化数学计算模型,对给水管网进行支路流量分配和节点压力计算,在此基础上,通过采用特征线法对给水系统的水锤现象进行动态计算分析,成功地模拟了停泵后给水系统的各个支路及节点的压力和流量的动态变化过程,并根据计算结果对系统进行初步安全分析。

The paper takes feed water system of the secondary circuit as study object. The pipeline＇s model of feed water system and the model of flux＇s dynamic changes before pump after stopping were established to calculate the distribution of spur tract＇s flux and nodes pressure. The dynamic variety course of each spur track and node＇s pressure was simulated successfully by using character line method, so as to realize the dynamic calculation and analysis for the water hammer phenomenon of the feed water system. The numerical results can he used to make a primary security analysis to the system.