非共沸混合制冷工质用于二级自然复叠制冷系统研究

Design of Two-Stage Autocascades Refrigeration system with Non-azeotropic Mixture Refrigerant

自然复叠制冷系统采用非共沸混合制冷剂,利用自然分离、多级复叠的原理,可以使用单台制冷压缩机,通过2级气液分离和热交换,实现复叠式制冷系统才能达到较低的蒸发温度和制冷能力,同时简化了控制系统,提高了制冷系统的可靠性。

Autocascades refrigeration system is a refrigeration system using non-azeotropic mixture refrigerant. Based on auto-segregate and multistage cascade fundamentals, the system uses a single compressor, two-stage flash chamber, double heat exchanger and achieve low temperature and more refrigerating capacity which closed near that of the classical cascade refrigeration system . This system also have simplified control procedure and improved integrative reliability.