摘要
针对传统蒸发冷却设备在多风沙的西北地区及高含尘浓度的工业场所,存在易堵且难以清洗的不足,提出立管间接-靶式喷嘴复合蒸发冷却机组。机组采用立管式间接蒸发冷却器及靶式撞击流喷嘴,可有效缓解设备堵塞。制作出试验样机并进行测试,立管式间接蒸发冷却器降温效果略优于卧管式间接蒸发冷却器,测试工况下降温保持在6℃以上,湿球效率保持在54%以上;靶式撞击流喷嘴雾化效果较好,流体动力式喷水室降温加湿效率在95%以上;对整机测试,温降13℃、湿球效率113%。该机组的提出及性能测试,为蒸发冷却这一环保节能的空调技术推广应用提供一定的参考借鉴。
For the defects of traditional evaporative cooling equipment,which is easy to be blocked and difficult to clean in windy and dusty areas in northwest China and industrial sites with high dust concentration,a vertical tube indirect-target type nozzle compound evaporative cooling unit was proposed.The unit adopts vertical tube indirect evaporative cooler and target type impinging stream nozzle,both of which can effectively alleviate equipment congestion.The test prototype was produced and tested.The cooling effect of the vertical tube indirect evaporative cooler was slightly better than the horizontal tube indirect evaporative cooler.The cooling effect was maintained above 6℃under the test conditions,and the wet bulb efficiency was maintained above54%.The target type nozzle has good atomization effect,and the cooling and humidifying efficiency of the hydrodynamic chamber is above 95%.The entire unit temperature drop is 13℃and wet ball efficiency is 113%.The proposed unit and its performance test provide reference for the application of evaporative cooling.
作者
宋祥龙
黄翔
黄萍
Song Xianglong;Huang Xiang;Huang Ping(School of Energy and Architecture,Xi’an Aeronautical University,Xi’an,710077;School of Urban planning and municipal engineering,Xi'an Polytechnic University,Xi'an,710048;Shaanxi Jinyi Ventilation Technology Co.,Ltd,Xianyang,712021)
出处
《制冷与空调（四川）》
2021年第6期777-783,共7页
Refrigeration and Air Conditioning
基金
十三五国家重点研发计划项目:“蒸发冷却空调关键技术与设备研究”(2016YFC0700404)。
关键词
立管式间接蒸发冷却器
靶式撞击流喷嘴
温降
冷却效率
测试分析
vertical tube-type indirect evaporative cooler
target type impinging stream nozzle
temperature drop
cooling efficiency
test and analysis
