辅助冷凝器冷却水进水温度对闭式热泵干燥系统性能的影响  

Effect of Cooling Water Inlet Temperature of Auxiliary Condenser on Performance of Closed Heat Pump Drying System

作　　者：李振博 武卫东[1] 孔德军 王浩[1] 胡皓 LI Zhenbo;WU Weidong;KONG Dejun;WANG Hao;HU Hao(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shandong Fude New Energy Equipment Co.,Ltd.,Zaozhuang 277100,Shandong,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]山东福德新能源设备有限公司,山东枣庄277100

出　　处：《制冷技术》2020年第4期55-61,共7页Chinese Journal of Refrigeration Technology

基　　金：上海市联盟计划(No.LM201709)。

摘　　要：针对目前工业干燥方式存在能量消耗大且对环境存在污染的问题,本文设计并搭建了一种闭式喷气增焓热泵干燥系统,实验研究了辅助冷凝器冷却水进水温度对循环风温、性能系数(COP)、单位时间除湿量(MER)和单位功耗除湿量(SMER)的影响规律。结果表明:在一定范围内,随着冷却水进水温度增加,冷凝器出风温度升高、SMER降低、COP和MER先升高后下降;进水温度为30.0℃时,系统获得最大出风温度为74.9℃;进水温度为5.0℃时,系统获得最大SMER为1.6 kg/(kW·h);进水温度为20.0℃时,系统获得最大的COP为5.64和最大MER为3.8 kg/h。In view of the current situation of high energy consumption and environmental pollution for the metal drying processes in industrial filed,a closed heat pump drying system is designed and established.The effect of cooling water inlet temperature of auxiliary condenser on circulating air temperature,coefficient of performance(COP),moisture extraction rates(MER)and specific moisture extraction rates(SMER)are experimentally studied.The experiment result shows that,when cooling water inlet temperature is increased,the condenser air outlet temperature is increased,SMER is decreased,COP and MER are both increased first and then decreased;when the cooling water temperature is 30.0℃,the system could obtain the maximum temperature of drying,which is 74.9℃;when the cooling water temperature is 5.0℃,the system could obtain the maximum SMER of 1.6 kg/(kW·h);when the cooling water temperature is 20.0℃,the system could obtain the maximum COP of 5.64 and MER of 3.8 kg/h.

关 键 词：热泵 工业干燥 冷却水温度 单位时间除湿量 单位能耗除湿量 

分 类 号：TQ051.5[化学工程] TK173[动力工程及工程热物理—热能工程]