太阳能-空气源/水源热泵双级耦合地板采暖系统在寒冷地区的应用

The application of solar-air source/water source heat pump coupled two-level floor heating system in cold regions

本文分析北京地区某办公建筑主动式太阳能与空气源/水源热泵双级耦合多能互补的地板采暖系统于2010～2011年冬季实际运行情况,在满足采暖要求的同时,取得良好的节能减排效果,节能率76%。采用空气源热泵与水源热泵耦合系统,能够解决R22工质的单级空气源热泵在低温环境下制取供暖热水,压缩机压缩比大,工质流率低,压缩机出力下降较多等问题,提高能效比。在充分利用太阳能的基础上,使空气源热泵采暖在北方寒冷地区得到有效的应用。

This paper analyzed the actual operation of active solar- floor heating system in an office building in Beijing in 2010～2011 winter,which had air source/ water source heat pump coupled two-level multi complement each other.To meet the heating requirements at the same time,to achieve save energy and reduce emissions,saving 76% energy.The air source heat pump and water source heat pump coupling system can solve the problem that R22 refrigerant single-stage air-source heat pump in the low temperature producing hot water would have high the compressor compression ratio,reduce the working fluid flow rate,press down contribute,etc.and improve energy efficiency.This system has full use of solar energy,and the air source heat pump heating can be effectively applied in cold northern regions.