本文应用基于激光衍射原理的瞬变喷雾场粒径分布测量系统，进行了液雾碰壁对环形喷嘴雾化质量影响的实验研究，对液滴碰壁过程进行了理论分析，并提出了一个液滴碰壁模型，数值模拟计算了液滴碰壁对环形喷嘴雾化质量的影响，并对计算结果和实验结果进行了讨论，得到了一些有价值的结论。 In this paper, based on the principle of laser diffraction, the transient spray field particle size distribution measurement system was used to study the influence of the liquid spray wall on the atomization quality of the annular nozzle. The droplet wall collision process was analyzed theoretically and a drop wall The influence of the wall of the droplet on the atomization quality of the annular nozzle was calculated by the model and the numerical simulation. The calculation results and the experimental results were discussed, and some valuable conclusions were obtained.