6WI型转子密炼机瞬态工作特性分析  

Analysis of Transient Operating Characteristics of 6WI Rotor in Internal Mixer

作　　者：刘万锁 何延东[1] 朱向哲[1] LIU Wansuo;HE Yandong;ZHU Xiangzhe(School of Mechanical Engineering,Liaoning Shihua University,Fushun,Liaoning 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：《塑料》2018年第6期10-14,共5页Plastics

基　　金：国家自然科学基金(51473073、51303075).

摘　　要：为分析转子轮廓对流场流动的影响,建立了流场的网格模型,采用瞬态流场分析方法,提取流场内特殊位置的数据,得到瞬态流速、压力与剪切率的变化曲线,以及特殊点所在平面的速度云图,并进行对比分析。发现在流场中央混合区,高速区受棱顶剪切流作用为主,低速区受棱部推进流作用显著;混合区左右转子的啮合作用对于高速区混合作业具有积极作用,对低速区混合作业具有消极作用;转子与外壁的啮合作用不会直接产生流体剪切,而是由间隙产生的拖曳流对流体进行剪切作用;长棱顶部产生的螺旋上升流具有轴向高速特征,是流场轴向流动的主要驱动力,也是流体循环流动的重要部分。In order to analyze the influence of rotor profile on the flow field,grid model of flow field was established,and the transient flow field analysis method was used to extract the data from the special position in the flow field.The variation curve of transient velocity,pressure and shear rate were obtained.The velocity cloud map of the plane in some special points were also obtained.In the center of the mixed zone,high speed area was effeeted by the shear flow on the top edge,low area was effected by the thrust flow;meshing action on the mixed zone around the rotor had a positive role on the high speed mixed operation,and had a negative role on the low speed mixed operation;the meshing of the rotor and the outer wall couldn't produce fluid shear directly,but the drag-drop flow generated by the gap was used to shear the fluid;the spiral rising flow on the top of long edge had characteristics of axial high speed,which was the main driving force for the axial flow,and it was also an important part of fluid circulation flow.

关 键 词：密炼机 流场 转子 混炼 瞬态 

分 类 号：TQ320.5[化学工程—合成树脂塑料工业]