文档介绍：R290 空气源热泵机组的实验研究与对比

黄玉优尹茜于静

(国家节能环保制冷设备工程技术研究中心,珠海 519070)

摘要天然制冷剂R290环境性能优越,可以替代制冷剂R22,对保护环境和节约能源具有重要意义。本
文对R290和R22用于空气源热泵冷热水机组进行实验研究并进行了对比,实验结果表明,R290的质量灌注
%左右;在名义制冷和制热工况下,R290空气源热泵冷热水机组的性能系数低
于R22系统,吸排气压力和压缩比也较低,而排气温度更是下降了15℃;为了保证两种制冷剂系统的能力
相当,R290压缩机排量需要比R22压缩机排量提高19%左右。
关键词自然工质 R290 R22 空气源热泵

EXPERIMENTAL STUDY PARISON OF
R290 AIR-TO-WATER HEAT PUMP

Huang Yuyou Yin Qian Yu Jing
(Chinese National Engineering Research Center of Green Refrigeration Equipment, Zhuhai 519070)

Abstract Natural refrigerant R290 has superior environmental performance for protecting environment and
saving energy, so it has been gradually recognized to be a potential substitute for R22. In this paper, experimental
study of air-to-water heat pump with R290 and R22 had been carried out pared. The results show that the
R290’s mass charge is about percent of R22’s, the COP and pression ratio are lower, the discharge
temperature is also lower 15℃ than that of R22, the displacement of pressor needs to increase about 19
percent of that of R22 for getting the same capacity.
Keywords Natural refrigerant R290 R22 Air-source Heat pump

0 前言用。但使用 60 年后才被发现这些氯氟烃物质是破
蒸气压缩式制冷循环首次获得应用时,制冷剂坏大气臭氧层的罪魁祸首之一。上世纪 90 年代初
的研究水平还相当低,人们自然而然想到使用天然开始使用不会破坏臭氧层的 HFC 类制冷剂,却又发
现这类氟利昂制冷剂对于全球温室效应加剧有巨
存在的一些物质,比如 NH3、HC 化合物、CO2、空
气和水等受到当时技术研究开发人员