Double temperature cold water unit for air conditioning system
Title:
Double temperature cold water unit for air conditioning system
Application Number:
200410009292
Application Date:
2004/07/01
Announcement Date:
2006/01/04
Pub. Date:
2007/02/07
Publication Number:
1715807
Announcement Number:
1299084
Grant Date:
2007-2-7
Granted Pub. Date:
2007-2-7
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
F25B 1/10, F24F 3/06
Applicant(s):
Tsinghua Univ.
Inventor(s):
Jiang Yi, Xia Jiajun, Shi Wenxing, Xue Zhifeng
Key Words:
Double temperature, cold water unit, air conditioning system
Abstract:
The present invention belongs to the field of refrigerating and air conditioning technology, and the double temperature cold water unit for air conditioning system consists of double stage compressor comprising low pressure stage compressor and high pressure stage compressor, condenser, liquid storage, high pressure stage throttle valve, middle cooler, low pressure stage throttle valve, low temperature evaporator/evaporation type air cooler, high temperature evaporator and evaporation pressure regulating valve. Structurally, the present invention features the coil heat exchanger of medium temperature cold water passage inside liquid refrigerant in the high temperature evaporator to prepare medium temperature cold water; and the preparation of low temperature cold water and cold air with the un-evaporated liquid refrigerant in the low temperature evaporator/evaporation type air cooler. The present invention can provide low temperature cold water or air at 7 deg c and medium temperature cold water at 18 deg c in high efficiency.
Claim:
Priority:
PCT:
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