空气源热泵空调水系统中循环水泵选型探讨

Selection discussion of circulating pump in air-source heat pump air conditioning water system

基于一级泵系统(冷源侧定流量末端变流量),对不同热负荷、冷负荷比例下空气源热泵空调水系统中循环水泵的选型进行了探讨,并对具体工程实例中循环水泵的选型进行了计算。结果表明,空气源热泵空调水系统,需根据制冷、制热工况下系统的水流量决定循环水泵采用一套定速水泵、采用一套变频调速水泵还是分设冷热水循环水泵。

The selection of circulating water pump in air-source heat pump air conditioning system under different thermal load and cold load ratio was discussed,and the selection of circulating water pump in the practical project was calculated.Results show that: based on the water flow of the cooling and heating condition,the circulating pump in air-source heat pump air conditioning water system can adopt a set of constant speed pumps,a set of variable frequency pumps or separate hot and cold water circulating pump.