Air conditioning unit and method for condensing heat recovery

Abstract

The application provides a condensing heat recovery air conditioning unit and method, which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a condensing heat recovery heat exchanger. The liquid outlet end of the compressor is communicated with the liquid inlet end of an electric three-way proportional regulating valve. One of the liquid outlet ends of the electric three-way proportional regulating valve is communicated with the liquid inlet end of the condensing heat recovery heat exchanger. The other liquid outlet end of the electric three-way proportional regulating valve is communicated with the liquid inlet end of the outdoor heat exchanger. The liquid outlet ends of the outdoor heat exchanger and the condensing heat recovery heat exchanger are both communicated with the liquid inlet end of the indoor heat exchanger. The liquid outlet end of the indoor heat exchanger is communicated with the liquid inlet end of the compressor. The application has the beneficial effects that the problem of large amount of cold and heat offset caused by electric reheating in the air treatment process of traditional constant temperature and humidity occasions is solved, the use frequency of electric heating is reduced, and the overall energy consumption of the air conditioning system is greatly reduced.

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