How to operate the wind water double source heat pump cold and hot water unit and its control method?

The company develops a wind water dual source heat pump cold and hot water unit and its control method. The air-water dual source heat pump cold and hot water unit includes a four-way valve, one of the interfaces of the four-way valve is connected with the shell and tube heat exchanger and the economizer, the other three interfaces of the four-way valve are respectively connected with the gas-liquid separator, the fin heat exchanger and the plate heat exchanger, the gas-liquid separator is connected with the inlet of the compressor, the outlet of the compressor is connected with the plate heat exchanger, the shell and tube heat exchanger is connected with the economizer, and the economizer is connected with the fin heat exchanger, the shell and tube heat exchanger and the compressor, The plate heat exchanger is connected with an external water source, the shell and tube heat exchanger is connected with an external water source, and the fin heat exchanger is connected with a fan. Compared with the prior art, the invention has the following advantages and effects: through the air-water dual source heat pump cold and hot water unit of the invention, the air source and water source can be used to meet the cold and hot water needs of users at any time, the automatic switching of air source heat pump mode, air-cooled cold water mode and water source heat pump mode can be realized according to the cold and hot water needs, and the three different functional units can be integrated into one multi-functional unit, Air source and water source can be used for refrigeration and heating at any time throughout the year according to the cold and heat needs of users.