平行流换热器在江水源热泵中的应用研究

Experimental study on Application of water cooled parallel flow heat exchangers in heat pump system

基于已在汽车空调中广泛使用的平行流换热器,对其采用水冷方式以应用于长江上游地区热泵系统。实验结果表明,水冷对平行流换热器的传热特性影响很大,制冷系统COP值为4.2,水温的降低和水流速的增加都可以进一步缩小换热器体积和重量。本试验研究是长江上游地区地表水水源热泵系列研究之一,可供平行流换热器在水冷式热泵空调上的进一步研究、设计和制造及应用作参考。

Based on the parallel flow condenser widely employed in auto air conditioner, the water cooled parallel flow heat exchangers were tested to investigate the application of water cooled parallel flow heat exchangers in the heat pump system. The result indicates that the water cooling takes a great effect on the performance of properties of heat transfer, the COP of the system with water cooled condenser is up to 4.2, the Lower water temperature and the higher the greater water velocity make the exchanger prompt the exchanger to be smaller and lighter.This study is hoped to be used as reference for the further study, design, manufacture and exploration of the parallel flow condensers employed in water cooled heat pump system in the upper reaches of the Yangtze River.