| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a heat pump air conditioning system for reducing the running cost through driving of a compressor constituting a heat pump system by switching a gas engine and a motor between day and night that a new machine design is required because the elements, e.g. the gas engine, the motor and the compressor, constituting the heat pump system must be integrated as an outdoor unit and thereby the cost is increased. SOLUTION: An ice storage tank 5, the outdoor unit 1 of an air-cooled heat pump package, and the outdoor unit 3 of a gas engine heat pump package are installed separately, first and second heat exchanging refrigerant passages 6a, 6b are provided in the ice storage tank, and the refrigerant passage of the outdoor unit 1 is coupled with the heat exchanging refrigerant passage 6a in the ice storage tank. The refrigerant passage of the outdoor unit 3 is coupled in series with the second heat exchanging refrigerant passage and the refrigerant passage leading to the outdoor unit. On the other hand, a passage 11 bypassing the heat exchanging refrigerant passage 6b is provided along with a valve mechanism 12 for switching them thus constituting an ice storage heat pump air conditioning system. |
