中国粉体技术2011，Vol.17Issue(2)：40-43,4.DOI:10.3969/j.issn.1008-5548.2011.02.011
高温高固气质量比条件下旋风预热器换热管压降的研究
Investigation on Pressure Drop in Heat Exchange Tube of Cyclone Preheater at High Temperature and High Mass Ratio of Solid and Gas
杨沛浩 1陈延信 1范海宏 1赵博1
作者信息
- 1. 西安建筑科技大学,粉体工程研究所,陕西,西安,710055
- 折叠
摘要
Abstract
In order to understanding the pressure drop in heat exchange tube of cyclone preheater varying with temperature, gas velocity and mass ratio of solid and gas, the pressure drops were measured in all kinds of conditions.The results showed that in the case of the mass ratio of solid and gas z ≤ 1,the pressure drop increased with the gas temperature at a given gas velocity and the gas temperature was lower than 200 ℃. When the gas temperature was 200 ℃, the pressure drop reached a maximum. Then the pressure drop decreased when the temperature further increased. In the case of a fixed gas velocity and the mass ratio of solid and gas z ≥13, the pressure drop decreased slowly with the gas temperature and reached a minimum at 600 ℃.Then the pressure drop increased slightly when the temperature further increased. The pressure drop in heat exchange tube always increased with the gas velocity and the mass ratio of solid and gas increasing.关键词
旋风预热器/换热管/压降分类
化学化工引用本文复制引用
杨沛浩,陈延信,范海宏,赵博..高温高固气质量比条件下旋风预热器换热管压降的研究[J].中国粉体技术,2011,17(2):40-43,4.
