流体机械2025，Vol.53Issue(4)：110-118,9.DOI:10.3969/j.issn.1005-0329.2025.04.015
桨叶布置方式对自吸射流搅拌振动特性的影响
The influence of blade arrangement on the vibration characteristics of self-priming jet stirring
摘要
Abstract
In order to explore the influence of the blade arrangement mode on the vibration characteristics of the self‑priming jet impellers,a combination of experimental and numerical methods was adopted.A comparative analysis was conducted on the fluid flow characteristics and mixing power consumption in stirred tanks with co‑directional(SJI)and staggered(PSJI)blade configurations,along with an evaluation of vibration differences under static and prestressed modal conditions.The results show that the staggered blade arrangement generates upward and downward jet flows,increasing fluid flow complexity.Under power‑law fluid conditions,compared to SJI,the viscosity and mixing power consumption around PSJI blades decreased by 1.2%and 4.0%,respectively,while the maximum stress of PSJI increased by 8.86%.Modal analysis revealed the largest vibration mode differences between the 1st/2nd‑order static and prestressed modes,with PSJI vibration amplitudes exceeding SJI by 14%~18%due to blade arrangement effects.Analysis of the 6th‑order modes showed that the liquid-solid coupling had less influence on PSJI vibration modes than on SJI,with maximum vibration amplitudes occurring at the jet outlet.The staggered configuration enhanced bottom fluid flow,intensified shear-thinning effects on power‑law fluids,and reduced power consumption.This study provides insights for the optimal design and application of stirred impellers.关键词
自吸射流搅拌桨/桨叶布置方式/幂律流体/流固耦合/模态分析Key words
self‑priming jet impeller/blade arrangement/power‑law fluid/liquid-solid coupling/modal analysis分类
化学化工引用本文复制引用
张静,郑子健,李明洋,程思淼,龚斌..桨叶布置方式对自吸射流搅拌振动特性的影响[J].流体机械,2025,53(4):110-118,9.基金项目
辽宁省应用基础研究计划项目(2022JH2/101300077) （2022JH2/101300077）
辽宁省教育厅高等学校基本科研项目(JYTMS20231507) （JYTMS20231507）
