摘要
为了从通风系统优化的角度来分析高温矿井采煤工作面的降温效果,从而论证增风降温的可行性,采用FLUENT软件数值模拟和风温预测程序预测2种方法,分析了永川煤矿采煤工作面低风速状态下（2.6 m/s）和极限风速状态下（4.0 m/s）工作面的风流温度变化情况,得出在风量较小、风速较低（〈3 m/s）的情况下,增加风量对改善工作面的气候条件有明显的效果;当风速在3.1~3.8 m/s之间时风量已经接近限值,增风降温的空间不大。此时增加风量对风流温度的影响基本上可以忽略,只能通过机械制冷降温的方式解决工作面的高温热害问题。
In order to analyze the cooling effect of high temperature mine working face from the perspective of the ventilation system optimization and demonstrate the feasibility of increasing air cooling, this article uses FLUENT numerical simulation software and wind temperature prediction to analyze the airflow temperature change conditions in Yongchuan Coal Mine working face in conditions of low speed（2.6 m/s） and limit wind speed （4.0 m/s） . The result is that increasing air flow has a significant effect on improving the weather conditions of the face when the air quantity or wind speed is low（ less than 3 m/s） ; but it has a little effect and can be ignored when the wind speed is 3.1 to 3.8 m/s （air flow in close to limit）. At this point, heat injury problems can only be resolved by a mechanical refrigeration cooling mode.
出处
《煤矿安全》
CAS
北大核心
2014年第6期156-158,共3页
Safety in Coal Mines
关键词
通风系统
优化
增加风量
降温
风温预测
ventilation system
optimization
increasing air flow
cooling
air temperature prediction
