三螺杆挤出机螺杆组合流体流场及流固耦合特性分析

doi:10.3969/j.issn.1672-6952.2016.05.012

辽宁石油化工大学学报 ›› 2016, Vol. 36 ›› Issue (5): 51-57.DOI: 10.3969/j.issn.1672-6952.2016.05.012

三螺杆挤出机螺杆组合流体流场及流固耦合特性分析

王天书^1,2,赵金玉¹,朱向哲¹

1.辽宁石油化工大学机械工程学院,辽宁抚顺113001;2.中国石化管道储运有限公司,江苏徐州221008

收稿日期:2016-03-31 修回日期:2016-04-28 出版日期:2016-10-20 发布日期:2016-10-29
通讯作者: 朱向哲(1974-),男,博士,教授,从事高效节能石化装备开发方面的研究:E-mail:xzzhu@126.com。
作者简介:王天书(1988-),女,硕士研究生,从事高效节能石化装备的研究;E-mail:812357296@qq.com。
基金资助:
国家自然科学基金项目(50903042)。

Analysis of Fluid Flow and FluidStructure Interaction Characteristics of Tri-Screw Extruders with Combined Screws

Wang Tianshu^1,2， Zhao Jinyu¹， Zhu Xiangzhe¹

1.School of Mechanical Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China； 2.Pipeline Transportation and Storage Company，Sinopec, Xuzhou Jiangsu 221008，China

Received:2016-03-31 Revised:2016-04-28 Published:2016-10-20 Online:2016-10-29

摘要/Abstract

摘要： 采用有限元法对4种三螺杆挤出机组合螺杆流体进行流场分析,重点分析了速度场、压力场、最大剪切速率、最大拉伸速率、停留时间的分布情况。结果表明,组合螺杆在一定程度上能够削弱轴向速度,延长停留时间,有利于物料充分混合。在此基础上,采用ANSYS/workbench软件进一步分析了流固耦合作用对三螺杆挤出机组合螺杆变形的影响。分析结果表明,组合4混合性能较好,耦合场作用下螺杆变形相对较小,设计较为合理。

关键词: 三螺杆挤出机, 组合螺杆, 流场分析, 流固耦合, 螺杆变形

Abstract: The flow fields in four kinds of combined screws of the tri-screw extruders were analyzed by using finite element method. The velocity, pressure, maximum shear rate, maximum stretching rate and residence time distribution in four extruders were specially analyzed. The results showed the combined screws of the triscrew extruders could weaken the axial velocity to a certain extent and increased the residence time distribution. Those were beneficial to the full mixing of the material. Moreover, the effects of screw deformation on fluid-structure coupling were further analyzed by ANSYS workbench. By comparison, the design of combined screws four was more reasonable due to the high mixing performance and the small deformation of screws.

Key words: Tri-screw extruders, Combined screws, Flow field analysis, Fluid-structure interaction, Screw deformation

王天书,赵金玉,朱向哲. 三螺杆挤出机螺杆组合流体流场及流固耦合特性分析[J]. 辽宁石油化工大学学报, 2016, 36(5): 51-57.

Wang Tianshu， Zhao Jinyu， Zhu Xiangzhe.

Analysis of Fluid Flow and FluidStructure Interaction Characteristics of Tri-Screw Extruders with Combined Screws[J]. Journal of Liaoning Petrochemical University, 2016, 36(5): 51-57.

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三螺杆挤出机螺杆组合流体流场及流固耦合特性分析

Analysis of Fluid Flow and FluidStructure Interaction Characteristics of Tri-Screw Extruders with Combined Screws

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