CPR1000核电厂凝结水系统管道水锤效应研究

Analysis of Water Hammer in Condensate Extraction System of CPR1000 Nuclear Power Plant

摘要: 针对CPR1000核电厂凝结水抽取系统喷淋阀闭合产生水锤的问题，利用FLOWMASTER一维流体软件与CEASAR II管道应力分析软件结合的时程分析方法计算阀门关闭时产生的水锤力。对某核电厂凝结水抽取系统关闭喷淋阀时产生的水锤力进行计算，根据计算结果在阀门所在管线相应位置增加支架，保证管线强度在阀门开关时满足要求，同时大幅降低管线振动现象，形成该类核电厂管道水锤问题的通用计算方法。

Abstract: For solving the problem of water hammer caused by condensate spray valves closing in the deaerator extraction system of CPR1000 nuclear power plant, the water hammer force is calculated by the time-history analysis method combined with FLOWMASTER one-dimensional fluid software and CEASAR II pipeline stress analysis software. According to the calculation results of water hammer force during condensate spray valve closing, we increase the support in the corresponding position of the valve pipeline to ensure that the strength of the pipeline meets the requirements when the valve is on and off, and at the same time greatly reduce the vibration phenomenon of the pipeline. Then this kind of nuclear power plant pipe water hammer general calculation method has been summed up.