发明名称 |
Refrigerator system using non-azeotropic refrigerant, and non-azeotropic refrigerant for very low temperature used for the system |
摘要 |
A single-stage refrigerating system includes a compressor, a condenser, an evaporator, and a heat exchanger for exchanging heat between a refrigerant in a path from the evaporator to the compressor and a refrigerant in another path from the condenser to the evaporator, and a non-azeotropic refrigerant mixture used in the system. The refrigerant mixture is a combination of a refrigerant having a normal boiling point of approximately room temperature and a low-boiling-point refrigerant having a normal boiling point below -60° C. A dew point of the refrigerant mixture at a pressure in the condensing process after the compression is above room temperature. The boiling point is higher than the dew point at a pressure in the lower-pressure region in a path from the evaporator to the compressor. The combination may include butane or isobutane as the high-boiling-point refrigerant component having a normal boiling point of approximately room temperature and having a low evaporating pressure and ethane or ethylene as the low-boiling-point refrigerant component suitable for achieving ultra-low temperature.
|
申请公布号 |
US2006065013(A1) |
申请公布日期 |
2006.03.30 |
申请号 |
US20050537261 |
申请日期 |
2005.06.01 |
申请人 |
KURITA SUSUMU;KURITA NOBUYOSHI |
发明人 |
KURITA SUSUMU;KURITA NOBUYOSHI |
分类号 |
F25B41/00;C09K5/04;F25B9/00;F25B40/00 |
主分类号 |
F25B41/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|