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在低环境温度工况下,分别对定频、普通变频空气源垫泵机组以及带有补气增焓功能的变频空气源热泵机组的性能进行试验。结果表明:变频空气源热泵机组的IPLV明显优于定频空气源热泵机组,且带有补气增焓功能的变频空气源热泵机组在环境温度低于-20℃时比定频、普通变频空气源热泵机组的制热量衰减小,制热效果较优。
Under the conditions of low ambient temperature, the performances of fixed frequency, ordinary variable frequency air source pad pump unit and variable frequency air source heat pump unit with enthalpy increasing enthalpy were tested respectively. The results show that the IPLV of inverter air source heat pump unit is obviously better than that of fixed frequency air source heat pump unit and the inverter air source heat pump unit with enthalpy increase enthalpy is better than fixed frequency inverter at normal ambient air temperature below -20 ℃. Source heat pump unit heat attenuation small, better heating effect.