| 二维液固循环流化床内固体颗粒浓度分布的研究 |
| |
| 引用本文： | 张学岗,杨建宇,李修伦. 二维液固循环流化床内固体颗粒浓度分布的研究[J]. 天津化工, 2001, 0(1): 10-12 |
| |
| 作者姓名： | 张学岗 杨建宇 李修伦 |
| |
| 作者单位： | 天津大学化工学院, |
| |
| 摘 要： | 本文对立了液固两相流在弯管中的运动微分方程，提出了一种由流化床压降计算流化床中固体颗粒膨胀高度的方法，在此基础上提出了固体颗粒浓度分布的经验计算式。本文建立了一套模拟循环流化床蒸发器流动状况的二维装置，采用CCD图象采集与处理系统对不同的操作条件下惰性固体颗粒在床中的浓度分布进行测量，实验表明模型较为准确，可用于工程计算。
|
| 关 键 词： | 流化床反应器 流动模拟 固体颗粒 浓度分布 二维液固循环流化床 |
| 文章编号： | 1008－1267(2000)06-0010-03 |
| 修稿时间： | 2000-11-10 |
Distribution of particles in two dementional liquid-solid circulating fludized bed |
| |
| GUO Jin-tang,WANG Xin-ying,et al. Distribution of particles in two dementional liquid-solid circulating fludized bed[J]. Tianjin Chemical Industry, 2001, 0(1): 10-12 |
| |
| Authors: | GUO Jin-tang WANG Xin-ying et al |
| |
| Abstract: | The distriction of solid particles in a two-dimensional liquid-solid scriculating fluidized bed has been studied with a CCD image recording and processing system.The expeiment shows that the particle eddies have three kinds of fligure.The influence of the syphon below the bed is considered.Differential eguations of liquid-solid flow in a syphon is brought forword to demenstrate the direction in which the liquid-solid flow inpouring the bed.A method of calculating the height of particles eddy is proposed.Then an experimental formulary is put forword to calculate the concention of particles in the bed.Further experiments show that all of the method proposed is so accurate that they can be used in engineering calculation. |
| |
| Keywords: | fludized bed reactor flow stimulation distribution of particles |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
