单级氟利昂透平制冷压缩机,通常均用于空调工况,即蒸发温度为0℃左右的工况。随着石油化工的发展,对用于低温工况的氟利昂透平制冷压缩机也提出了迫切的要求。例如,氯乙烯工程、合成橡胶、润滑油的制造以及其他化工工艺,均需用低温透平冷冻机。在这种情况下,既可设计专用的多级透平压缩机来满足要求,也可采用两台单级氟利昂透平压缩机串 Single-stage freon turbine refrigeration compressor, usually used for air conditioning conditions, that is, evaporation temperature is about 0 ℃ conditions. With the development of petrochemical industry, there are also urgent requirements for Freon turbocompressor compressors used in low temperature conditions. For example, vinyl chloride engineering, synthetic rubber, lubricating oil manufacturing and other chemical processes, are required to use cryogenic turbo refrigerator. In this case, either a dedicated multi-stage turbine compressor can be designed to meet the requirements or two single-stage freon turbines can be used