本文对协流式微通道内乳化过程进行了可视化实验研究,采用高速动态摄像装置观测了协流式微通道中离散相(油)在连续相(水)中的乳化过程,得到了滴式、窄喷式、宽喷式三种典型流型.研究表明,乳液中液滴的尺寸和乳化模式随连续相和分散相的流量变化;滴式模式下所产生的液滴单分散性好,但是喷式模式下生成的液滴单分散性较差;分散相流量过大将形成喷射流。 In this paper, the visualization of the emulsification process in co-flow microchannels was investigated. The emulsification process of discrete phase (oil) in the continuous phase (water) was observed by a high-speed dynamic camera. The results show that the droplet size and emulsification mode vary with the flow rate of the continuous phase and the dispersed phase. The droplet mode produced by the droplet monodispersity is good, but the spray-type The resulting droplets have a poor monodispersity in the mode; a jet flow is formed when the dispersed phase flow is too large.