一种可连续供热除霜的空气源热泵冷热水机组

A Unit of Air Source Heat Pump Capable for Continuous Heating and Defrosting

提出了一种空气源热泵冷热水机组,该冷热水机组至少有二个室外换热器,正常工作时各换热器独立从室外空气中吸热,任意一个室外换热器需要除霜时,其它室外换热器继续从室外空气吸热,所吸取的热量一部分用于生产热水,另一部分用于该室外换热器除霜,实现除霜的同时还能继续供热。夏季空调工况该冷热水机组可以生产空调冷水,实现全季节需求。本文介绍了该空气源热泵冷热水机组的工作流程和控制方法。

This article preseuts a kind of milti-connected air source heat pump which has at least two outdoor heat exchangers. In normal operation, the exchangers absorb heat independently from outdoor. Anyone of the exchangers frosting, the others continue to absorb heat from the outdoor air, one part of the heat is used for producing hot water and the other part is used for the outdoor heat exchanger defrosting which achieves defrosting while continuing heating. During summer conditions, the heat pump unit can produce chilled water, to achieve full seasonal demands. This paper introduces the working process and control methods of the air source heat pump.