流体机械2016，Vol.44Issue(9)：82-87,46,7.DOI:10.3969/j.issn.1005-0329.2016.09.017
R417A 喷气增焓热泵热水器低温环境下的变流量特性分析
Variable Flow Characteristic Analysis of R417A Enhanced Vapor Injection Heat Pump in Low Temperature
藕俊彦 1王芳 1余大维 1汪涛 1陈红群1
作者信息
摘要
Abstract
The paperresearched thesubstitutability of R417A in vapor injection air source heat pump water heater system.Mainly analyzed thereplaceability of R147A to R22 in low temperature condition.On the base of thermomechanical analysis ofvapor injec-tion heat pump system with flash vessel,determined the optimal refrigerant charge of R22 and R417A in vapor injection heat pump water heater system by experiment.Under the direct -heated heating conditions,by changing the opening of electronic expansion valve to regulate system refrigerant volume and find out the optimal opening of R22 and R417A system under standard conditions (20℃,15℃),winter conditions(7℃,6℃)and low temperature conditions(-7℃,-8℃).The results show that:When Pm≈(Pe Pc )1 /2 ,the system was on optimum state;The environment temperature is lower,the feasibility of R417A instead of R22 more obvious.关键词
R417A/空气源热泵热水器/喷气增焓/开度调节/性能测试Key words
R417A/air source heat pump water heater/enhanced vapor injection/opening regulation/performance test分类
机械制造引用本文复制引用
藕俊彦,王芳,余大维,汪涛,陈红群..R417A 喷气增焓热泵热水器低温环境下的变流量特性分析[J].流体机械,2016,44(9):82-87,46,7.
