Heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating

The invention discloses a heat source tower heat pump air-conditioning system capable of using a cool storage device to assist heating. Please see the figure one to three in the specification for the system schematic diagram. The heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating mainly comprises a refrigeration or heating device (1), a heat source tower (2), a cool storage tank (3), a heat source tower water pump (4), a circulating pump (5), an anti-freezing solution pump (6), a heat exchanger (7), a tail end device (8) and a user side water pump (9), wherein the cool storage tank (3) is filled with phase-change materials with the phase-transition temperature ranging from minus 6DEG C to 7DEG C, switching and adjustment are carried out through valves. In summer, valley electricity is used for cool storage at night, and independent cooling of the cool storage tank, independent cooling of a main machine and united cooling of the cool storage tank and the main machine can be achieved in the daytime; in winter, a cool storage device is used in cooperation, the valley electricity is used for heat storage at night, independent heating of the cool storage tank, independent heating of a heat source tower heat pump and united heating of the cool storage tank and the heat source tower heat pump can be achieved in the daytime. According to the heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating, the problem that a cool storage device of a traditional cool storage air conditioner is idle in winter is solved, the problem that high energy consumption is caused by the low COP of a unit in winter is solved, and the capacity of peak load shaving of the cool storage device is improved.