What are the advantages of combined cooling and heating equipment based on carbon dioxide heat pumps?

The company has developed a combined cooling and heating equipment based on carbon dioxide heat pump, including carbon dioxide heat pump system, hot water supply pipeline, third heat exchanger and waste heat recovery pipeline. The compressor, the first heat exchanger, the expansion valve and the second heat exchanger are connected in sequence, the hot water supply pipeline is communicated with an external water source, and the hot water supply pipeline and the refrigerant pipeline are connected in the first heat exchanger. Heat exchange is performed inside, the third heat exchanger is connected between the expansion valve and the second heat exchanger through the refrigerant pipeline, and the waste heat recovery pipeline is in fluid communication with the hot water supply pipeline and is used to recover the hot water supply pipeline for discharge The hot water, the waste heat recovery pipeline and the refrigerant pipeline exchange heat in the third heat exchanger. The invention can improve the utilization rate of energy to a certain extent by transferring the waste heat of the hot water discharged from the hot water supply pipeline to the refrigerant and participating in the circulation of the heat pump system.