摘要
由于长期的开采,我国煤矿浅部资源已殆尽,矿井开采以每年15m的速度向深部开采,热害已经成为矿井灾害之一,矿井风流热交换理论的研究对热害治理有重要意义.基于传热学理论,建立了三维矿井风流与倾斜巷道热湿交换的数学模型,采用异步长有限差分法对巷道内风流热环境参数进行数值模拟求解,分析了巷道倾角对风流温湿度的影响,得到了巷道倾角不同时风流温、湿度关系分布图,对高温矿井热害治理有一定的指导意义.
With the development of mineral resources in the shallow depleted areas, mining has gradually developed to the deep with 15 m annual year, and heat disaster becomes one of the mine disasters. Theoretical study of airflow in mining has important significance to heat disaster. The paper establishes a three - dimensional mathematical model of heat and humidity exchange of flow in inclined roadway based on heat transfer theory. The finite difference method is applied to the numerical calculation of heat and humidity environment in the inclined roadway, and analyzed roadway slope angle on effects of air temperature and humidity. The results have certain significance in heat disaster governance in hot mine.
出处
《矿业工程研究》
2011年第3期69-72,共4页
Mineral Engineering Research
关键词
倾斜巷道
风流温度
相对湿度
热交换
inclined roadway
airflow temperature
relative humidity
heat exchange
