基于中温热泵的消防水带干燥装置性能研究  

Research on performance of fire hose drying device based on medium temperature heat pump

作　　者：唐荣琪 刘龙[1] 黄晨 李永振 于昊 罗思义[1] 左宗良 Tang Rongqi;Liu Long;Huang Chen;Li Yongzhen;Yu Hao;Luo Siyi;Zuo Zongliang(Qingdao University of Technology,Qingdao 266000,China)

机构地区：[1]青岛理工大学,山东青岛266000

出　　处：《可再生能源》2023年第6期757-765,共9页Renewable Energy Resources

基　　金：山东省高等学校科技计划项目—潮汐引发渗流作用下浅滩热泵水平埋管换热机理研究(J18KA189)。

摘　　要：为研究消防水带的干燥特性曲线,实现低能耗、快速干燥的目的,文章研发了以R134A为制冷剂的中温热泵消防水带干燥装置。通过实验方法分析消防水带干燥特性,并对该中温热泵消防水带干燥装置的性能开展研究,对比不同送风温度、风速下,系统性能系数(COP)、制热量、干燥时间、干燥过程耗电量、单位能耗除湿量(SMER)、单位时间除湿量(MER)的变化规律。结果表明,在一定范围内,随着送风温度的增加,COP降低、SMER和MER均升高。风速不变,送风温度为70℃时,干燥性能最优,SMER为0.427 kg/(kW·h),MER为1.584 kg/h,比送风温度为40℃时提高了10.9%和62.1%。送风温度不变,风速为4 m/s时,干燥效果最好,SMER为0.543 kg/(kW·h),MER为1.137 kg/h,比风速为2 m/s时提高了20.4%和50.2%。送风温度为50℃时,比消防水带吹干机节能约52%。In order to study the drying characteristic curve of fire hose and realize the purpose of low energy consumption and rapid drying,this paper developed a drying device of medium temperature heat pump fire hose with R134A as refrigerant.Through the experimental method,the drying characteristics of the fire hose were analyzed,and the performance of the drying device of the middle temperature heat pump fire hose was studied,and the changing rules of the coefficient of performance(COP),heat production,drying time,power consumption in the drying process,the specific moisture extraction rate(SMER),the moisture extraction rates(MER)were compared under different air supply temperature and wind speed.The results showed that COP decreased,SMER and MER increased with the increase of air supply temperature within a certain range.When the air speed was unchanged and the air supply temperature was 70℃,the drying performance was the best,with SMER of 0.427 kg/(kW·h)and MER of 1.584 kg/h,which were increased by 10.9%and 62.1%compared with that when the air supply temperature was 40℃.When the supply air temperature was unchanged and the wind speed was 4 m/s,the drying effect was the best,SMER was 0.543 kg/(kW·h),MER was 1.137 kg/h,which was 20.4%and 50.2%higher than that when the wind speed was 2 m/s.When the air supply temperature was 50℃,the energy saving was about 52%than that of the fire hose dryer.

关 键 词：中温热泵 热泵干燥 干燥特性 性能分析 

分 类 号：TK173[动力工程及工程热物理—热能工程]