混合式热泵系统在“三北”地区应用前景分析

Prospect analysis of applying mixed heat pump system in the ″sanbei″ regions

针对传统的空气源热泵难以在我国“三北”地区的特定气候条件下运行的问题,笔者曾提出一种可应用于低温环境下、由空气/水和水/水热泵机组组成的混合式热泵系统,并对其进行了实验研究.本文通过对实验结果的分析,研究了该系统在不同运行工况下的制热能效比REE和单、双级运行模式的切换条件;在“三北”各地区分别选取3个代表城市,利用B IN气象参数和温度频率法模拟计算出系统在这些地区应用的供热季节性能系数(FHSP),分析了混合式热泵系统在“三北”地区的应用前景和推广价值.

There is a strong application demand of air-source heat pump in the ＂sanbei＂ regions of China, but the traditional air-source heat pump is quite difficult to be used in certain climate conditions of these areas. The authors once invented a kind of mixed heat pump system made up of air-to-water heat pumps and water-towater heat pumps, and also did some research by experiment. We first studied the system＇s heating energy efficiency ratio （ REE ） and switch qualifications by analyzing experimental results. Then via BIN weather parameters and temperature frequency method, we simulated and calculated the system＇s heating season performance factors （FHSP） of nine cities chosen from the ＂sanbei＂ regions respectively. We then analyzed the system＇s application prospect and popularity value.