变频系统在单、双级组合式热泵空调系统中的应用

Frequency conversion system are applied in composite heat pump system consisted of single stage heat pump and twin coupling heating system

本文根据我国北方的地域特点,提出了一种单、双级定频-变频组合式混合热泵系统。这种热泵 在单、双级混合热泵系统的基础上,引入了变频系统,使之既能在夏季满足制冷要求,又能在冬季热泵采 暖中,在外界环境温度变化范围大的情况下高效节能地运行,同时还可提高系统的部分负荷性能,从而 提高了整个系统的能效比EER,增大了热泵的季节性能系数HSPF,是一种既节能又满足舒适性要求的 热泵系统。

In the north cold area of the China environmental temperature changed greatly. Heat pumps usually can't used at this condition. Aim at this problem, a new system is proposed. it could be used at large range of environmental temperature in winter and used as air - conditioner in summertime frequency conversion system are applied in composite heat pump system consisted of single stage heat pump and twin coupling heating system. The performance of part charge will be improved as frequency conversion system be used, EER and HSPF will be enhanced too, and it help to improve comfort of air-condition area.