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采用α－萘酚与对氨基苯磺酸重氮盐的偶合竞争串联二级反应体系，在４种型式的两喷嘴对置同轴撞击流反应器内研究了喷嘴中心和环隙射流的动量比、射流速度、喷嘴间距、反应器容积对撞击流反应器内微观混合过程的影响。结果表明：增大喷嘴中心和环隙射流的动量比可改善微观混合状况；在撞击区特征停留时间（ｔＲ）处于０．０３ｓ～１．０ｓ的实验范围内存在一最佳特征停留时间ｔＲＣ，当ｔＲ＜ｔＲＣ时，减少ｔＲ并不能有效改善微观混合状况；当ｔＲ＞ｔＲＣ时，减小喷嘴间距Ｌ及反应器容积ＶＲ可改善微观混合状况。
In this paper, the cascade reaction system of α-naphthol and diazo-p-aminobenzenesulfonate was used to study the kinetic energy ratio of nozzle center and annulus jet in four types of two-nozzle counter-coaxial impinging reactors. , Jet velocity, nozzle spacing, and reactor volume on the impact of the micro-mixing process in the impact flow reactor. The results show that increasing the momentum ratio of nozzle center and annulus jet can improve the microscopic mixing condition. There is an optimum characteristic residence time (tRC) within the experimental range of 0.03 s ~ 1.0 s in the impingement zone, When tR tRC, reducing the nozzle spacing L and the reactor volume VR can improve the micro-mixing conditions.