Research On The Theory And Experiment Of Impinging Streams About Efficient Tertiary Atomization Of The Viscous Liquid

We know that particle size is above tens microns after the atomization of the viscous liquid. The conventional once or twice atomization for ultra fine particle below5μm was due to higher energy consumption, so its efficiency is not high. This paper introduced that the larger particles were atomized again through using the residual energy of fluid after the secondary atomization, namely the tertiary atomization.This paper studies the theory of tertiary atomization of liquid impingement. It mainly discusses factors that have an impact on atomization of liquid impingement; elastic force, liquid bridge force, Van der Waals’ force and electrostatic force that the oil particles receive during impingement; laser light-scattering method used to measure the size of particles; the diameters of the particals after tertiary atomization and an experiment table for oil mist impingement is designed and built.During the experiment, the effect of atomization is measured with self-made nozzles. Through analysis of considerable experimental data, the relation among inflow air pressure, impingement distance, viscosity of oil, compressed air flow and the diameter of particles after tertiary atomization; and the change rate of the diameters before and after the impingement as well. It can be made sure that the key factors affecting the result of the experiment are diameters of the nozzle throat and Air flow.