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202401016.pdf
文章编号： 1672-6987（2024）01-0115-06； DOI： 10.16351/j.1672-6987.2024.01.016
王家成1， 陶兰兰2， 郭海锋1， 周勇军1*（1.南京工业大学 机械与动力工程学院，江苏 南京 211816;
2.江苏省特种设备安全监督检验研究院 国家化工设备质量监督检验中心，江苏 苏州 215600）
摘要： 通过粒子图像测速技术（PIV）对装配三斜叶-Rushton组合桨搅拌槽内流场进行了实验研究，在甘油-水溶液中研究了该组合桨在不同转速N、离底距C1以及桨叶间距C2时的槽内流场变化情况。研究结果表明：当转速N=100 r·min-1时，上桨叶区的混合效果有所改善，桨叶间速度分布相对均匀；当离底距C1=03H时，上桨叶区低速区域最小，搅拌槽内的混合效果达到最佳；当桨间距C2=025H时，上桨叶区的低速区得到改善，混合效果有所提升，两桨叶间速度分布趋于平稳有利于混合和传质。
关键词： 改进型三斜叶-Rushton组合桨； 流场； 搅拌； 粒子图像测速技术
中图分类号： TQ 051.7文献标志码： A
引用格式： 王家成， 陶兰兰， 郭海锋， 等. 改进型三斜叶-Rushton组合桨槽内流场特性的粒子图像测速技术［J］. 青岛科技大学学报(自然科学版), 2024, 45（1）： 115-120.
WANG Jiacheng, TAO Lanlan, GUO Haifeng， et al.Investigation of flow field characteristics in stirred tank with improved three-pitched blade-Rushton combined impeller using particle image velocimetry［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2024， 45（1）： 115-120.
Investigation of Flow Field Characteristics in Stirred Tank with Improved
Three-Pitched Blade-Rushton Combined Impeller Using Particle Image Velocimetry
WANG Jiacheng1, TAO Lanlan2, GUO Haifeng1, ZHOU Yongjun1
(1. College of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China;
2.National Quality Supervision and Inspection Center of Chemical Equipment, Special Equipment
Safety Supervision Inspection Institute of Jiangsu Province, Suzhou 215600, China)
Abstract: The flow field characteristics in stirred tank with improved three-pitched blade-rushton combined impeller was carried out by particle image velocimetry (PIV). It was studied in glycerol-water solution of the variation of the flow field in the tank at different rotational speeds N, distance from the bottom C1 and blade spacing C2. The research results show that: when the rotation speed N=100 r·min-1, the mixing effect of the upper blade section is improved, and the velocity distribution between the blades is relatively uniform; when the distance from the bottom C1=03H, the low speed area of the upper blade section is the smallest, and the internal mixing effect of the stirring tank gets its best; when the blade spacing C2=025H, the low-speed area of the upper blade section is promoted and the mixing effect is improved as well as the speed distribution between the two blades tends to be stable in this situation, which is conducive to mixing and mass transfer. The research results provide a relevant reference for the application of the improved three-pitched blade-rushton combined impeller in practical engineering.
Key words: improved three-pitched blade-Rushton combined impeller; flow field; stirring; particle image velocimetry
收稿日期: 2023-01-02
基金项目： 国家自然科学基金项目(52175171).
作者简介： 王家成（1996-），男，硕士研究生.*通信联系人.
