A flooded central air conditioning system includes a compressor, condenser, external oil separator, low pressure circulation barrel and spiral evaporator, refrigerant outlet of compressor connects to refrigerant inlet of external oil separator, whose refrigerant outlet connects to condenser inlet, whose outlet connects to refrigerant inlet of low pressure circulation barrel, whose refrigerant outlet connects to refrigerant inlet of spiral evaporator, whose refrigerant outlet connects to gas inlet of low pressure circulation barrel, whose gas outlet connects to refrigerant inlet of compressor. The present invention provides a flooded central air conditioning system, which owns advantages of energy saving and better refrigeration as ammonia refrigerant, safety and convenience as Freon refrigerant, has greatly improved the refrigeration efficient of refrigeration system using Freon as refrigerant. Integrated energy efficiency is significantly improved, and energy consumption greatly reduced. The central air conditioning system described owns pretty strong market competitiveness.
展开▼
