螺旋溢流管旋流器分离特性数值模拟
Numerical Simulation of Separation Characteristics of Spiral Overflow Tube Cyclone
郭金星 1耿新国 1王飞 1伏文秀2
作者信息
- 1. 汶上义桥煤矿有限责任公司,山东 济宁 272500
- 2. 山东科技大学机械电子工程学院,山东 青岛 266590
- 折叠
摘要
为降低旋流器溢流跑粗现象,提出一种螺旋溢流管旋流器,通过在溢流管内加入螺旋叶片抑制短路流流量和内溢流上行速度,提高旋流分离精度.通过采用CFD数值模拟进行仿真分析,探究螺旋溢流管旋流器内的流场规律.研究结果表明,相较于常规旋流器,螺旋溢流管旋流器内压力梯度更明显,切向速度增大,轴向速度减小,短路流流量明显减少,溢流粗颗粒含量大大减少.
Abstract
In order to reduce the phenomenon of cyclone overflow running rough,a spiral overflow tube cyclone is proposed to improve the accuracy of cyclone separation by adding spiral blades in the overflow tube to inhibit the short-circuit flow and the upward velocity of internal overflow.CFD numerical simulation is used for simulation analysis to investigate the flow field law in the spiral overflow tube cyclone.The results show that compared with the conventional cyclone,the pressure gradient inside the spiral overflow tube cyclone is more obvious,the tangential velocity increases,the axial velocity decreases,the short-circuit flow rate is obviously reduced,and the overflow coarse particle content is greatly reduced.
关键词
螺旋溢流管/旋流器/溢流跑粗/数值模拟Key words
spiral overflow tube/cyclone/overflow coarse/numerical simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据