Heat accumulating type heat pump system based on cooling water waste heat recovery and operation method thereof

The invention discloses a heat accumulating type heat pump system based on cooling water waste heat recovery and an operation method thereof. The system comprises a heat accumulating type water sourceheat pump system and a cooling water system, wherein the heat accumulating type water source heat pump system comprises a refrigerant circulation circuit, a heat source circulation circuit and a heatsink circulation circuit. The refrigerant circulation circuit includes a compressor, a condenser, a throttling device, an evaporator and a phase change heat storage tank. The heat source circulationcircuit includes a refrigeration device, a cooling water pump, the evaporator and regulating valves. The heat sink circulation circuit includes the condenser, a heat preservation water tank, a circulating water pump, the phase change heat storage tank and regulating valves. The cooling water system includes the refrigeration device, the cooling water pump, a cooling tower and regulating valves. The heat accumulating type he