AIR CONDITIONING SYSTEM COMBINED ICED COLD HEAT ACCUMULATING TYPE COOLING WITH HOT WATER HEATING

摘要

PURPOSE:To obtain an air conditioning system combined iced cold heat accumulating type cooling with hot water heating by a structure wherein the heat storage tank of a circulating water circuit connected to a load side circuit and the heat exchange chamber of a heat pump type refrigerant circuit are connected with each other by means of a plurality of heat pipes. CONSTITUTION:A plurality of heat pipes 3, the upper part of each of which is enclosed by a cylindrical heat exchange chamber and the lower part of each of which is exposed in a heat storage tank 1 so as to contact with cold water or hot water, are arranged in the heat storage tank 1. When iced cold heat accumulating type cooling is intended, a circulating water circuit A is put into operation by running a circulating pump 6 under the conditions that a valve 7a is open and valves 7b and 7c are closed. At the same time, a heat pump type refrigerant circuit C is put into operation by running a compressor 12. On the other hand, when heating operation is intended, the circulating pump 6 and an air conditioning pump 10 are run under the conditions that the valve 7a is closed and the valves 7b and 7c are open so as to circulate the hot water in the heat storage tank 1 through the circulating water circuit A to a load side circuit B. In addition, a four-way selector valve 11 is changed-over and at the same time valves 14a and 14b are changed-over in the heat pump type refrigerant circuit C. Further, the compressor 12 is run under the conditions that valves 14d and 14e are closed while valves 14c and 14f are open.