密炼机转子系统流场特性研究  

Study on Flow Field Characteristics of Rotor System in Internal Mixer

作　　者：韩博宏 何延东[1] 朱向哲[1] HAN Bohong;HE Yandong;ZHU Xiangzhe(School of Mechanical Engineering,Liaoning Shihua University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺 113001

出　　处：《中国塑料》2020年第4期60-69,共10页China Plastics

基　　金：国家自然科学基金项目(51473073、51303075);辽宁省自然科学基金项目(2019?ZD?0061)。

摘　　要：采用瞬态计算方法,对4WS型密炼机转子流场进行模拟分析。结果表明,流场的最大速度位于转子棱顶部位,这一位置容易发生回流,转子间隙的流体速度随着转子运行时间逐渐增大直至稳定;转子转动方向的改变会对流体中心区域造成很大影响,对近壁区影响较小;随着转子转动,推进区和背压区的压力差逐渐减小,回流现象随之减少。A transient calculation method is used to simulate the rotor of a 4WS tpye internal mixer.The maximum veloci ty of flow field was found to distribute on the top of the rotor ridge,w here the reflux was prone to take place.The fluid velocity in the rotor clearance increased gradually and then tended to be stable with the running time of rotor until.There is a great influence on the fluid center area but a small impact on the near wall area from the change of the rotating direc tion of the rotor.With the rotation of the rotor,the pressure difference between the propulsion area and backpressure zone decreased gradually,and the reflux phenomenon decreased accordingly.

关 键 词：密炼机 流场 速度云图 压力云图 

分 类 号：TQ320.5[化学工程—合成树脂塑料工业]