發(fā)布時(shí)間：2018-12-19 08:25

【摘要】：為了量化采煤工作面非均勻環(huán)境營建技術(shù)氣流組織,提高采煤工作面降溫效果,利用熱平衡方程、射流理論,研究了追蹤型小型空冷器降溫范圍、數(shù)量、送風(fēng)量、送風(fēng)速度、射流角度,對2301采煤工作面進(jìn)行了工程計(jì)算,采用皮溫測試和主觀熱感覺的方法進(jìn)行了熱舒適試驗(yàn)研究。結(jié)果表明:2301工作面均勻布置10個小型空冷器,每個風(fēng)量0.46 m3/s,射流出口風(fēng)速2.34 m/s,射流末端風(fēng)速0.54 m/s,符合工作面風(fēng)速要求;受試人員各測點(diǎn)平均皮溫在32.16~33.82℃之間浮動,皮溫平均值為33.05℃,結(jié)果與Fanger舒適皮溫接近,工人熱感測試認(rèn)為舒適的占65.7%,認(rèn)為稍暖的占23.6%。
[Abstract]:In order to quantify the technical airflow organization in non-uniform environment of coal mining face and improve the cooling effect of coal mining face, using heat balance equation and jet theory, this paper studies the range, quantity and velocity of air cooling of tracing small air cooler. The engineering calculation of 2301 coal mining face was carried out by jet angle, and the thermal comfort test was carried out by using the method of skin temperature test and subjective thermal feeling. The results show that 10 small air coolers are arranged evenly in 2301 working face, each air volume is 0.46 m3 / s, jet outlet wind speed is 2.34 m / s, jet end wind speed is 0.54 m / s, which accords with the requirement of working face wind speed. The average skin temperature varied from 32.16 鈩，

本文編號：2386669