石油化工高等学校学报

石油化工高等学校学报 ›› 2014, Vol. 27 ›› Issue (4): 87-91.DOI: 10.3969/j.issn.1006-396X.2014.04.019

• 化工机械 • 上一篇    下一篇

啮合块错列角对三螺杆混合段混合效率的影响

籍延磊1,  王 阁1, 2,  陈 立1,  朱向哲1   

  1. ( 1. 辽宁石油化工大学机械工程学院, 辽宁抚顺1 1 3 0 0 1; 2. 哈尔滨哈锅锅炉容器工程有限责任公司, 黑龙江哈尔滨1 5 0 0 6 0)
  • 收稿日期:2014-04-15 修回日期:2014-06-25 出版日期:2014-08-25 发布日期:2014-11-10
  • 通讯作者: 朱向哲( 1 9 7 4 - ) , 男, 博士, 副教授, 从事计算流体力学和计算固体力学研究; E - m a i l : x z z h u@1 2 6. c o m。
  • 作者简介:籍延磊( 1 9 9 2 - ) , 男, 在读本科生, 从事螺杆挤出流体数值计算研究; E - m a i l : 8 1 2 3 3 9 4 1 9@q q. c o m。
  • 基金资助:
    国家自然科学基金( 5 0 9 0 3 0 4 2, 5 1 3 0 3 0 7 5) ; 辽宁省优秀人才支持计划( L J Q 2 0 1 3 0 4 1) 。

Effect of Stagger Angles of Mixing Sections on the Mixing  Efficiency in Intermeshing TriScrew Extruders

  1. （1.School of Mechanical Engineering, Liaoning Shihua University, Fushun Liaoning 113001, China; 2.Harbin Pot Boiler Vessel Engineering Co. Ltd., Harbin Heilongjiang 150060,China）
  • Received:2014-04-15 Revised:2014-06-25 Published:2014-08-25 Online:2014-11-10

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摘要： 采用有限元法和网格重叠技术, 利用C a r r e a u - B i r d流体模型, 对同向啮合三螺杆挤出机混合段进行了 三维混合数值模拟。计算了三螺杆挤出机的最大剪切速率、 混合指数以及瞬时和平均时间混合效率等参数, 并与双 螺杆挤出机进行了对比分析。结果表明, 在相同工况下, 三螺杆挤出机的瞬时和平均时间混合效率大于双螺杆挤出 机。

关键词: 三螺杆挤出机,    ,  , 啮合块错列角,    ,  有限元法,    ,  混合效率

Abstract: Three dimensional mixing characteristics of the kneading elements in a intermeshing corotating triscrew extruders were simulated. The mesh superposition technique (MST) and the CarreauBird flow model were employed in this simulation. The mixing mechanisms in the kneading elements were analyzed with the mixing evaluation parameters, such as maximal shear rate, mixing index, instantaneous and time averaged efficiencies, which were compared with those in the twin screw extruders. The results show that, in the same operating conditions, the maximal shear rate, mixing index, instantaneous and time averaged efficiencies of the triscrew extruders are bigger than those of the twin screw extruder. It shows that the triscrew extruder has better mixing efficiency than the twin screw extruder.

Key words: Triscrew extruders,    ,  Stagger angles of kneading disks,    ,  Finite element method,    ,  Mixing efficiency

引用本文

籍延磊, 王 阁, 陈 立, 朱向哲. 啮合块错列角对三螺杆混合段混合效率的影响[J]. 石油化工高等学校学报, 2014, 27(4): 87-91.

Ji Yanlei,Wang Ge,Chen li,Zhu Xiangzhe. Effect of Stagger Angles of Mixing Sections on the Mixing  Efficiency in Intermeshing TriScrew Extruders [J]. Journal of Petrochemical Universities, 2014, 27(4): 87-91.

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