Abstract: According to the research and development process of impinging stream reactors, the mixing process of the impinging stream reactor was analyzed.And the effects of reaction space, fluid flow, nozzle structure on the mixing performance of free impinging jets reactor, confined impinging jets reactor and submerged circulative impinging stream reactor (SCISR)and so on were reviewed.The research progress of the influence of excitation and other techniques on the mixing effect of impinging stream reactor was introduced.And the micromixing mixing time and correlation of several kinds of impinging stream reactors were summarized.A novel horizontal three-nozzle impinging stream reactor was introduced, which produced an umbrella-shaped radial jet that was different from the radial jet of the two nozzles.Further study found that the radial jet deflection angle β peaked when the equivalent nozzle spacing L^*=2D~3D, and the mixing time was the shortest.The prospects of mixed research of impinging stream reactor were discussed.

Key words: mixing, SCISR, free impinging stream reactor, confined impinging stream reactor, horizontal three-nozzle impinging stream reactor

摘要： 按照撞击流反应器的研究发展进程，分析了撞击流反应器的混合过程。结合大量学者研究工作，回顾了反应空间、流体流动、喷嘴结构等因素对常见的开放式撞击流反应器、受限撞击流反应器、浸没循环撞击流反应器等反应器混合性能影响的研究。简述了外界激励和其他技术对撞击流反应器混合效果影响的研究进展，并总结了几类反应器的微观混合时间及关联式。同时介绍了一种新型水平三向撞击流反应器，该反应器产生的径向射流不同于两喷嘴径向射流，而为交叉状的伞状射流；通过进一步探究发现当量喷嘴间距L^*=2D～3D时径向射流偏转角β出现峰值，而且此时的混合时间也最短。最后对撞击流反应器混合性能研究前景进行展望。

关键词: 混合, 开放式撞击流反应器, 受限撞击流反应器, 浸没循环撞击流反应器, 水平三向撞击流反应器