本文選題：綜掘工作面　切入點(diǎn)：數(shù)值模擬　出處：《煤礦安全》2017年12期 　論文類型：期刊論文

【摘要】：基于計(jì)算流體動(dòng)力學(xué)(CFD)和礦井通風(fēng)理論,以田陳煤礦7309綜掘工作面為研究對(duì)象,建立了單一壓入式通風(fēng)系統(tǒng)條件下的綜掘工作面幾何模型。采用FLUENT軟件對(duì)不同供風(fēng)速度下綜掘工作面三維空間內(nèi)風(fēng)流場(chǎng)、溫度場(chǎng)及濕度場(chǎng)的分布特性及變化規(guī)律進(jìn)行數(shù)值模擬。模擬結(jié)果表明:增加供風(fēng)量對(duì)降低巷道溫度有一定的作用,但對(duì)巷道內(nèi)的濕度影響較小,當(dāng)壓風(fēng)筒出口風(fēng)速為16 m/s、風(fēng)量為480 m3/min時(shí),綜掘巷道內(nèi)的溫度低于26℃,綜掘機(jī)附近工作區(qū)域相對(duì)濕度保持在40%~57%之間,此時(shí)的供風(fēng)參數(shù)滿足煤礦安全規(guī)程要求。
[Abstract]:Based on the theory of computational fluid dynamics (CFDs) and mine ventilation, the 7309 fully mechanized excavation face of Tianchen Coal Mine is taken as the research object. The geometric model of fully mechanized excavating face under the condition of single pressure-in ventilation system is established. The air flow field in three dimensional space of fully mechanized excavating face with different velocity of air supply is analyzed by FLUENT software. The distribution and variation of temperature field and humidity field are numerically simulated. The simulation results show that increasing air supply plays a certain role in reducing tunnel temperature, but has little effect on the humidity in roadway. When the wind velocity at the outlet of the pressure tube is 16 m / s and the air volume is 480 m3 / min, the temperature in the roadway is lower than 26 鈩，

本文編號(hào)：1607388