自然复叠制冷系统初探  

A RESEARCH ON AUTOCASCADE REFRIGERATION SYSTEM

作　　者：杜垲[1] 廖开蒙[1] 

机构地区：[1]东南大学动力工程系,南京210096

出　　处：《低温工程》2002年第3期29-33,共5页Cryogenics

摘　　要：自然复叠制冷系统是一种采用多元混合工质的制冷系统 ,它使用单台压缩机 ,通过自然分离、多级复叠的方法 ,在高沸点组分和低沸点组分之间实现了复叠 ,达到了制取低温的目的。详细介绍了自然复叠制冷系统的原理 ,将自然复叠循环与单级压缩、双级压缩、复叠式进行了分析比较 ,指出了自然复叠循环的优势。文中给出了自然复叠制冷系统的优化原则 ,并将用CFC作制冷剂的自然复叠循环的计算结果和两级压缩循环、复叠循环的计算结果进行了比较。对用非CFC物质作制冷剂的自然复叠制冷系统和适用于低温领域的自然复叠制冷系统进行了分析 ,说明自然复叠制冷系统具有较大的实用价值。Autocascade refrigeration system is a refrigeration system using mixed refrigerant The system uses one compressor and achieves cascade between high boiling point component and low boiling point component by auto segregate and multilevel cascade So it can achieves low temperature Detailed introduction to the theory of autocascade refrigeration system is given in the paper The comparision among autocascade circle,single stage compress circle,double stage compress circle and cascade circle is made The advantage of autocascade circle is pointed The optimization principle of autocascade refrigeration system is presented The result of autocadcade circle using CFC refrigerant is contrast to the result of the double stage circle and the cascade circle The autocascade refrigeration system using non CFC refrigerant and autocascade refrigeration system applying to low temperature region are analysed It is shown that autocascade refrigeration system has preferable practical value

关 键 词：自然复叠制冷系统 多元混合工质 工作原理 制冷循环 

分 类 号：TB61[一般工业技术—制冷工程] TB651