Combined cooling, heating and power air conditioning water heating system

The invention discloses a combined cooling, heating and power air conditioning water heating system, which comprises a compressor, a first heat exchanger, a liquid storage tank, a second heat exchanger, a gas-liquid separator, a third heat exchanger, a reversing valve and a throttling device. By controlling the flow direction of a refrigerant, the system has four modes of simultaneous cooling andheating, separate cooling, separate heating and transitional season operation. In summer, the simultaneous cooling and heating mode can meet the requirements. When the heat meets the requirements, thesystem can be switched to a separate cooling mode to meet the cooling demand. In winter, the system can be switched to a separate heating mode to meet the requirements. At the same time, the outdoorheat exchanger with two paths increases the convenience of defrosting, and the heating effect is not affected. In the transitional season, after the indoor cold meets the use requirements, the systemcan disperse the excess cold