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

作　　者：温禄淳 

机构地区：[1]煤科集团沈阳研究院有限公司,辽宁抚顺113122

出　　处：《煤矿安全》2015年第1期163-165,共3页Safety in Coal Mines

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。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.

关 键 词：负压捕尘 CFD 流场 相对真空度 供水压力 

分 类 号：TD714.4[矿业工程—矿井通风与安全]