介绍了一种评价压水堆核电厂喷淋系统中水锤效应的方法,并以我国某二代改进型M310核电厂喷淋系统为原型,对系统的水锤瞬态力进行了计算。结果表明:采用安全壳喷淋系统直接喷淋时管道中水锤产生的瞬态力远小于喷淋立管和环管充水后的自重,由水锤瞬态力导致的管道位移很小,该力在管道支吊架可承受的范围内。 A method to evaluate the water hammer effect in the sprinkler system of PWR nuclear power plant is introduced. Based on the spray system of a second generation of improved M310 nuclear power plant in China, the transient water hammer force of the system is calculated. The results show that the transient force produced by the water hammer in the pipeline when spraying directly by the containment sprinkler system is much smaller than the dead weight after the sprinkler riser and the pipe are filled with water, and the pipe displacement caused by the water hammer transient force is small, This force can be supported by the pipe hanger.