| 气固搅拌流化床的床层压降 |
| |
| 引用本文： | 李凡,冯连芳,顾雪萍,王凯,刘波.气固搅拌流化床的床层压降[J].高校化学工程学报,2002,16(4):384-388. |
| |
| 作者姓名： | 李凡 冯连芳 顾雪萍 王凯 刘波 |
| |
| 作者单位： | 1. 浙江大学化学工程与生物工程学系聚合反应工程国家重点实验室,浙江,杭州,310027
2. 扬子石油化工股份有限公司,江苏,南京,210048 |
| |
| 基金项目： | 国家重点基础研究发展规划项目(G1999064803) |
| |
| 摘 要： | 通过测定搅拌流化床的压降与表观气速的关系，研究了搅拌转速和桨叶形式对流化状态的影响。发现水平搅拌桨叶更有利于破碎气泡，增强气固接触；垂直桨叶则趋于诱导气泡的产生与长大。在流态化阶段，床层压降保持定值，该定值与搅拌转速和叶片形式没有关系。
|
| 关 键 词： | 气固搅拌流化床 流体特性 床层压降 表现气速 流化状态 |
| 文章编号： | 1003-9015(2002)04-0384-05 |
| 修稿时间： | 2001年4月6日 |
Pressure Drop in the Gas-Solid Stirred Fluidized Bed |
| |
| LI Fan,FENG Lian-fang,GU Xue-ping,WANG Kai,LIU Bo.Pressure Drop in the Gas-Solid Stirred Fluidized Bed[J].Journal of Chemical Engineering of Chinese Universities,2002,16(4):384-388. |
| |
| Authors: | LI Fan FENG Lian-fang GU Xue-ping WANG Kai LIU Bo |
| |
| Affiliation: | LI Fan1,FENG Lian-fang1,GU Xue-ping1,WANG Kai1,LIU Bo2 |
| |
| Abstract: | The influence of the stirrer speed and the blade shape on the fluidization in the stirred gas-solid fluidized beds was experimentally studied by examining the relationship between the pressure drop and superficial gas velocity. It was found that the horizontal blades can break the bubbles more easily,hence enhance the contact between the gas and the solid particles whereas the vertical blades tend to give rise to bubbles and encourage their growth. At the stage of fluidization,the pressure drop remains constant, and is independent of the stirrer speed and the blade shape. |
| |
| Keywords: | agitation fluidized bed characteristics of fluidization pressure drop |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
