Double temperature cold water unit for air conditioning system |
Title: |
Double temperature cold water unit for air conditioning system |
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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: |
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Priority: |
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PCT: |
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