二氧化碳热泵采暖机组性能改善研究

Research on the Performance Improvement of Carbon Dioxide Heat Pump Heating Unit

介绍了一种二氧化碳热泵采暖机组性能改善方案,即通过在水循环房间散热器后串联一个继续冷却器而将出房间后热水中的剩余热量转移至冷媒循环蒸发器侧,利用这部分余热对进入蒸发器之前的空气进行加热,提高蒸发温度,降低压缩机压比和机组消耗功率,最终达到提高采暖机组制热性能系数的目的。对机组进行试验并分析,表明该方案有助于降低采暖机组消耗功率。

This paper, introduces a method to improve the performance of carbon dioxide heat pump heating unit. Through a continuing series chiller behind the radiator in the water cycle room, will transfer residual heat in the hot water out of room to the refrigerant circulating evaporator side, using this part of the residual heat for heating the air before entering the evaluator, to raise the evaporating temperature and reduce. pressure ratio of compressor and the unit power consumption. Ultimately achieve the purpose of improving the coefficient of heating performance of the heating units. So the unit test was carried out and the results were analyzed, and the results show that the scheme will help to reduce the power consumption of the heating unit.