中国塑料 ›› 2024, Vol. 38 ›› Issue (9): 101-106.DOI: 10.19491/j.issn.1001-9278.2024.09.017

• 机械与模具 • 上一篇    

场协同拉伸螺杆强化混合与传热机理的研究

黄士争1(), 潘威1, 朱家威1, Sain Mohini2, 杨卫民3, 曾宪奎1, 鉴冉冉1,2,4()   

  1. 1.青岛科技大学机电工程学院,山东 青岛 266061
    2.多伦多大学机械与工业工程系,生物复合材料及生物质材料加工中心,安大略省 多伦多 M5S 3B3
    3.北京化工大学机电工程学院,北京 100029
    4.大连橡胶塑料机械有限公司,辽宁 大连 116036
  • 收稿日期:2023-12-29 出版日期:2024-09-26 发布日期:2024-09-27
  • 通讯作者: 鉴冉冉,副教授,从事高分子材料加工成型与智能制造技术的研究,jianrr@qust.edu.cn
    E-mail:1738922131@qq.com;jianrr@qust.edu.cn
  • 作者简介:黄士争(1999-),男,硕士研究生,从事高分子材料加工技术与装备的研究,1738922131@qq.com
  • 基金资助:
    国家自然科学基金(52206095);山东省自然科学基金(ZR2021QE232);山东省高等学校青创科技支持计划(2023KJ102)

Study on enhancement mechanism of mixing and heat transfer of field⁃synergetic elongation screw

HUANG Shizheng1(), PAN Wei1, ZHU Jiawei1, MOHINI Sain2, YANG Weimin3, ZENG Xiankui1, JIAN Ranran1,2,4()   

  1. 1.College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China
    2.Centre for Biocomposites and Biomaterial Processing,Department of Mechanical and Industrial Engineering,University of Toronto,Toronto,ON M5S 3B3,Canada
    3.College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China
    4.Dalian Rubber & Plastics Machinery Co,Ltd,Dalian 116036,China
  • Received:2023-12-29 Online:2024-09-26 Published:2024-09-27
  • Contact: JIAN Ranran E-mail:1738922131@qq.com;jianrr@qust.edu.cn

摘要:

基于聚合物场协同塑化输运混炼原理,设计开发强化混合与换热的场协同拉伸螺杆新结构——场协同拉伸元件,利用ANSYS Polyflow 对普通双头螺纹螺杆和不同拉伸元件排布的场协同拉伸螺杆进行了数值模拟,对比分析了不同螺杆构型对聚合物胶料的混合性能、传热性能以及塑化均匀性的影响。结果表明,场协同拉伸螺杆综合性能均优于普通螺纹螺杆,其中,场协同拉伸元件集中排布的螺杆B传热性能最优,场协同拉伸元件分散排布的螺杆F混合性能最优;场协同拉伸螺杆中拉伸元件的径向收敛流道改变了速度场的方向,使速度矢量产生了径向分量,促进了速度场与温度梯度场、速度梯度场的协同相互作用,增加流场中的拉伸流动和拉伸形变,强化了热质传递输运过程。

关键词: 场协同原理, 场协同拉伸螺杆, 塑化质量, 强化传热传质

Abstract:

Based on the principle of polymer field⁃synergistic plasticization, transportation and mixing, a field synergistic elongation element with a new structure of field⁃synergistic elongation screw was designed and developed for enhancing mixing and heat transfer. The ANSYS Polyflow was employed to numerically simulate ordinary double head threaded screws and field synergistic elongation screws with different elongation element arrangements. The effects of screw configuration on the mixing performance, heat transfer performance, and plasticization uniformity of polymeric rubber were comparatively analyzed. The results indicated that the comprehensive performance of the field synergy elongation element was superior to that of the ordinary threaded screw. Among these screws, the heat transfer performance of screw B with concentrated arrangement of field synergy elongation element was the best, and the mixing performance of screw F with the dispersed arrangement of field synergy elongation element was the best. The radial convergence channel of the elongation element in the field synergy elongation element changed the direction of the velocity field, generating radial components in the velocity vector. This promoted the synergistic interaction between the velocity field and the temperature gradient and velocity gradient fields, increasing the stretching flow and deformation in the flow field and strengthening the heat and mass transfer and transportation process.

Key words: the principle of field synergy, field synergy elongation screw, enhance heat and mass transfer

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