| 循环流化床煤粉气化炉内气固三维流动特性数值模拟 |
| |
| 引用本文： | 李巍,宋廷钰,谢立军,李伟,沈志恒. 循环流化床煤粉气化炉内气固三维流动特性数值模拟[J]. 石油化工设备, 2012, 41(5): 18-23 |
| |
| 作者姓名： | 李巍 宋廷钰 谢立军 李伟 沈志恒 |
| |
| 作者单位： | 1. 海洋石油工程股份有限公司,天津,300451
2. 仰恩大学人文学院,福建泉州,362014 |
| |
| 摘 要： | 采用基于气相k-ε湍流模型、颗粒相颗粒动理学模型的欧拉-欧拉双流体模型,对循环流化床煤粉气化炉内气体和颗粒两相三维流动特性进行了冷态数值模拟,得到了炉内颗粒体积分数、颗粒速度的分布情况以及进料管与回料管的颗粒扩散距离。模拟结果表明,循环流化床煤粉气化炉内呈现下部密相区、上部稀相区的颗粒分布特性。
|
| 关 键 词： | 循环流化床煤粉气化炉 欧拉-欧拉双流体模型 颗粒动理学 数值模拟 |
Numerical Simulation of 3D Flow Behavior of Gas-Solid in Circulating Fluidized Bed Coal Gasification |
| |
| LI Wei , SONG Ting-yu , XIE Li-jun , LI Wei , SHEN Zhi-heng. Numerical Simulation of 3D Flow Behavior of Gas-Solid in Circulating Fluidized Bed Coal Gasification[J]. Petro-Chemical Equipment, 2012, 41(5): 18-23 |
| |
| Authors: | LI Wei SONG Ting-yu XIE Li-jun LI Wei SHEN Zhi-heng |
| |
| Affiliation: | 1. Offshore Oil Engineering Co. Ltd. , Tianjin 300451, China; 2. College of Humanities, Yang-En University, Quanzhou 362014, China) |
| |
| Abstract: | For the purpose of study of the flow characteristics of gas and solid in the circulating fluidized bed coal gasification, numerical analyses of three-dimension flow behavior of gas and particles are performed using two-fluid flow model combining with theκ-ε turbulent model for gas phase, and the kinetic theory of granular flow for particles. The distribution of concentration and velocity of particles were obtained. Results indicated that the particles concentration in the circu- lating fluidized bed coal gasification was higher in lower part of bed, and lower in upper region of bed. Meanwhile, the diffuse distances of particles for inlet pipe and feedback pipe were obtained respectively. |
| |
| Keywords: | circulating fluidized bed coal gasification Euler-Euler two-fluid flow models kinetictheory of granular numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
