综放支架放煤口负压捕尘装置流场真空度CFD模拟

CFD Simulation of Flow Field Vacuum on Negative Pressure Dust-catch Device in Coal-mouth of Fully-mechanized Support

摘要: 基于CFD的理论分析方法，对综放支架放煤口负压捕尘装置的内部流场进行了模拟，分析了喷嘴供水压力对流场真空度的影响。模拟结果表明，装置吸尘的最根本原因是吸尘罩连接管处有很大的相对真空度，确定供水4 MPa是理想的水压，吸尘罩的长度尽量缩短且安装位置尽量靠近产尘处。
- 负压捕尘 /
- CFD /
- 流场 /
- 相对真空度 /
- 供水压力
Abstract: Based on the theory of CFD analysis method, the internal flow field of the negative pressure dust-catch device in the coal-mouth of fully-mechanized support was simulated, and the influence of nozzle water pressure on flow field vacuum degree was analyzed. The simulation results showed that the fundamental reason that the device could catch dust was that there was large relative vacuum degree in the connecting pipes of dust-catch hood; the ideal water pressure was 4MPa, the length of the dust-catch hood should be short and the installation location was close to the dust producing field.
- negative pressure dust-catch /
- CFD /
- flow field /
- relative vacuum /
- water supply pressure

[1]	张文平.综放支架放煤口负压捕尘装置技术研究[J].中国煤炭,2009(4):35-37.
[2]	张建华,范付恒.水射流负压钻孔除尘技术的应用[J].煤矿安全,2011,44(3):86-87.
[3]	谢耀社,姜学云.负压降尘技术及其应用[J].中国矿业大学学报,2003,32(5):567-570.
[4]	程卫民,周刚,左前明,等.喷嘴喷雾压力与雾化粒度关系的实验研究[J].煤炭学报,2010,35(8):86-89.
[5]	朱迎春,周心权,龚武,等.通风对掘进工作面煤燃烧影响的CFD模拟研究[J].煤矿安全,2009(8):5-12.
[6]	温正,石良辰,任毅如.FLUENT流体计算应用教程[M].北京:清华大学出版社,2009:25-95.
[7]	任伟,赵耀江,冯子芳.基于FLUENT的采空区流场数值模拟[J].煤矿安全,2013,44(6):26-29.