间接式污水源热泵机组节能技术分析
Energy efficiency technique analysis of indirect sewage source heat pump unit
摘要：
分析了间接式污水源热泵机组节能技术，包括提高压缩机效率，改善压缩机工作条件，减小传热温差，引射回油/液等。理论计算结果表明，与普通污水源热泵机组相比，间接式污水源热泵机组夏季制冷工况下性能系数可提高20%左右，冬季制热工况下性能系数可提高17%左右。
关键词：间接式污水源热泵机组,节能技术,压缩机,传热温差,性能系数
Abstract：
Analyses the energy efficiency techniques for the unit, including raising compressor efficiency, improving working conditions of the compressor, reducing heat transfer temperature difference and returning lubricant or refrigerant by ejector. The theoretical calculation results show that the performance coefficient of the indirect sewage source heat pump unit under cooling and heating conditions can increase by about 20% and 17% respectively，compared with the general sewage source heat pump unit.
Keywords:indirect sewage source heat pump unit, energy efficiency technique, compressor, heat transfer temperature difference, performance coefficient