高低温交变湿热试验箱温湿度性能实验研究  

Experimental Study on the Performance of Temperature and Humidity of High and Low Temperature-humidity Alternating Test Chamber

作　　者：王茂[1] 孙志高[1] 李成浩[1] 张爱军[1] 王功亮 Wang Mao Sun Zhigao Li Chenghao Zhang Aijun Wang Gongliang(School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009 Suzhou Kert Science Instrument Co., Ltd, Suzhou, 215222)

机构地区：[1]苏州科技大学环境科学与工程学院,苏州215011 [2]苏州科阿特科学仪器有限公司,苏州215222

出　　处：《制冷与空调（四川）》2016年第5期573-576,共4页Refrigeration and Air Conditioning

基　　金：江苏省自然科学基金项目(BK2012602)资助

摘　　要：选择R404A作为高低温交变湿热试验箱制冷系统的制冷剂,在此基础上构建了高低温交变湿热试验箱,并对该试验箱的温湿度性能进行了测试。实验结果表明,利用R404A作为制冷循环工质,电加热作为升温与温度稳定调节手段,采用PID控制方式,高低温交变湿热试验箱内的温度可稳定控制在-40℃~150℃范围,温度偏差≤±0.3℃。采用冷却除湿和电加热蒸汽加湿方式,相对湿度可控制10%RH^98%RH,湿度偏差≤±1.5%RH。系统运行稳定,表明高低温交变湿热试验箱的设计达到了要求。R404A is chosen as the refrigerants of the high and low temperature-humidity test chamber. A set of refrigeration unit for the high and low temperature-humidity test chamber is designed and tested. The results show that the temperature of the high and low temperature-humidity test chamber can reach-40 ℃ to 150 ℃with in the deviation of ±0.3 ℃using PID control method. The humidity of the high and low temperature-humidity test chamber can reach 10% RH to 98% RH with in the deviation of ±1.5%RH using cooling dehumidification and steam humidification methods. The system works stable. The results also show that the design of high and low temperature-humidity test chamber is successful.

关 键 词：制冷剂 R404A 高低温交变湿热试验箱 

分 类 号：TB65[一般工业技术—制冷工程]