FLOW GENERATED BY AXIAL FOIL-TURBINE COMBINED IMPELLERS IN STIRRED TANK

叶雯; 方夏虹; 戴干策

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FLOW GENERATED BY AXIAL FOIL-TURBINE COMBINED IMPELLERS IN STIRRED TANK

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- FLOW GENERATED BY AXIAL FOIL-TURBINE COMBINED IMPELLERS IN STIRRED TANK
- CIESC Journal Issue 3, (1995)
- 作者机构：
  
  华东理工大学联合化学反应工程研究所!上海200237,华东理工大学联合化学反应工程研究所!上海200237,华东理工大学联合化学反应工程研究所,上海,200237
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q021
- Online First：25 June 1995，
  
  Published：25 June 1995
- 稿件说明：
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叶雯, 方夏虹, 戴干策. FLOW GENERATED BY AXIAL FOIL-TURBINE COMBINED IMPELLERS IN STIRRED TANK[J]. CIESC Journal, 1995, (3).
DOI：

叶雯, 方夏虹, 戴干策. FLOW GENERATED BY AXIAL FOIL-TURBINE COMBINED IMPELLERS IN STIRRED TANK[J]. CIESC Journal, 1995, (3). DOI：

摘要

搅拌反应器是化工、医药、食品工业中广泛应用的基础设备之一

当搅拌釜内液深与搅拌釜直径相比较大时(通常比值大于1)

往往采用双层或多层桨

以保证顶部到底部的循环流动。透平桨产生的是径向流

形成以桨叶为中心线的上、下2个循环区

桨叶附近剪切速率高

气体分散能力强。翼型桨产生的流型是轴向流

形成全釜循环

混合均匀

剪切温和。为充分利用两者优势

加强全釜混合

剪切适度

特别是在粘稠物系中

可采用组合桨。目前尚未看到对翼型-透平组合桨流动状况的研究

而对于非牛顿流体中的组合桨流动状况则了解

Abstract

The flow fields generated by axial foil - turbine combined impellers were investigated with a Laser Doppler Anemometer. Flow patterns

velocities

shear rates

pump capacities and power were obtained in both water and 1. 5% (mass) CMC solutions. The effect of distance between two impellers on flow characterisitics was viewed in detail.

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