【摘要】 在分析了单级压缩空气热源热泵机组的低温性能的基础上 ,研究了改进的中间注液热泵循环系统。结果表明 :采用改进的热泵循环系统可明显提高制热量 ,同时使压缩终温降低 ,容积效率提高 ,有效的改善了热泵机组的低温性能。此系统已成功的应用于新产品开发。更多还原

【Abstract】 On the basis of analyzing performance of single stage compression air source heat pumps under low temperature condition, This paper study on developing circulatory system of medial liquid injection heat pumps.The result that: supplied heat can be raised obviously by developing circulatory system of heat pumps?compressor discharge temperature is also put down? volumetric efficiency is advanced. Performance of heat pumps under low temperature condition is improved efficiently. This system has been used for researches on new products successfully.更多还原