| 摘要 |
PROBLEM TO BE SOLVED: To save the energy at a low load by controlling the brine circulation flow rate according to the fluctuation of the load to increase/decrease the power consumption of a circulation pump. SOLUTION: This air-conditioning system comprises a brine passage to connect a circulation pump 1', a heat source unit, an ice storage tank 3, a heat exchanger 4, and a control valve, and a cold and hot water passage to connect the heat exchanger 4, an air-conditioning loads and a cold and hot water circulation pump 5, the brine is cooled by the heat source unit, the water in the ice storage tank 3 is frozen by the brine to store the heat, the brine is cooled by the melting heat of the ice in the ice storage tank 3 in the heat radiation mode, and led to the heat exchanger 4 to cool a cold water in the cold and hot water passage through the heat exchanger 4. An inverter is controlled to drive the circulation pump 1' and the heat source unit 2' constantly at the output below the rated value to control the flow rate of the circulation pump 1' and the capacity of the heat source unit 2'. |
