矿井移动空调室技术研究

he technology of the mobile air conditioning room (MACR) in mines is a new one which could locally cool the fixed workplace or semi-fixed workplace in mines. In MACR, the heat barrier is used to isolate workers from the hot environment and the cooling air is supplied for the mobile air-conditioning room by the turbine-typed air cooler whose cooling source and ventilating power come from cooling energy and potential energy stored in the water in constant temperature zone. MACR could be used as a short time rest place for workers to eliminate heat stress. The experiments showed that when the environment temperature was 32℃ and the water of 18℃ was supplied at the speed of 1.6m3/h, the dry-bulb air temperature in MACR can be cooled to 24℃ below in 10 minutes. The air temperature can still be maintained at 28℃ below after 30 minutes without the air cooler working. The research puts forward that MACR technology is economical when used in high temperature mines. The principle and designing method of MRAC technology was also discussed in detail in this paper.