浅谈空气能热泵热水器的优势和系统制冷剂的选取

Advantages of air energy heat pump water heater and the Selection of refrigerant

空气能热泵热水器是间接利用空气能的新型产品,具有显著的节能经济性。首先简要介绍了空气能热泵热水器的工作原理和特点,与其它各种热源及其加热方式从热水制取成本和年运行费用作横向对比,分析了它的经济性,说明优势所在。针对系统制冷剂,说明了制冷剂选用原则及限制条件,通过制热系数、压力比、压缩机的排气温度等各方面分析,最后建议采用R134a为制冷剂。

Air energy heat pump water heater is a new product of indirect utilization of air energy, and has significant energy saving.This paper first briefly introduces the air to the working principles and characteristics of heat pump water heater, and other kinds of heat source and heating mode from hot water production cost and operating expenses for horizontal comparison, analyzes its economy, In narrative of a refrigerant system determine that refrigerant selection principles and constraints, through heating coefficient and pressure ratio, the exhaust temperature of the compressor and the analysis, finally proposed using R134a as refrigerant.