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针对空气源热泵多工况下压缩机频繁启停造成能耗和压缩机直流变速控制在不同工况下具有良好的转换特性,设计了满足空调和生活热水两种不同工况的直流变速控制空气源热泵。实验结果表明,两种工况之间可自由切换,机组在制冷、制热及高温环境制热水工况下不同的压缩机频率运行均可满足负荷要求,机组运行稳定、高效、节能。
Aiming at the condition that the air-source heat pump starts and stops frequently due to frequent starting and stopping of the compressor and the DC variable speed control of the compressor has good conversion characteristics under different working conditions, a DC variable speed control meeting two conditions of air conditioning and domestic hot water is designed Air source heat pump. The experimental results show that the two working conditions can be switched freely. The different compressors running under refrigeration, heating and hot water heating conditions can meet the load requirements. The operation of the unit is stable, efficient and energy-saving.