Abstract:Aimed to the problems existed in the traditional oil mist lubrication system,such as short distance in oil mist transportation and difficulty in adjusting oil mist content，the optimal design of the atomizer structure was presented by replacing common Venturi nozzle with Spey dualorifice centrifugal nozzle and improving the original control system of oil mist lubrication with programmable logical controller (PLC).The best atomization parameters were determined through studying the atomization parameters,such as the viscosity and temperature of lubricating oil,the temperature and pressure of air on the effect of atomization effect.The optimal atomizer can ensure the oil particle distribution with a diameter from 1 μm to 5 μm in oil mist,and the oil mist transportation distance can be reached more than 120 m，which resolves the existing problem of oil mist lubrication system used in petroleum & chemical equipment at present.
