根据目前的研究状况,蒸发冷却制冷方式必须结合与机械制冷才能够在中等湿度地区和湿度地区达到要求的制冷温度。文章分析了半集中式蒸发冷却-机械制冷复合空调系统各部分的制冷原理,针对中等湿度地区分析各季节空气处理过程。同时,对干工况风机盘管的应用也做了分析,为蒸发冷却制冷方式在中等湿度地区的推广奠定基础。 According to the current research, evaporative cooling must be combined with mechanical refrigeration to achieve the required refrigeration temperature in moderately humid and humid areas. This paper analyzes the cooling principle of each part of the semi-centralized evaporative cooling-mechanical refrigeration compound air-conditioning system, and analyzes the air-handling process of each season for medium-humidity area. At the same time, the application of fan coil in dry working condition has also been analyzed, laying a foundation for the promotion of evaporative cooling and cooling mode in moderate humidity region.