Air conditioning system with defroster and central air conditioning hot water system

Abstract

The invention discloses an air conditioning system with a defroster and a central air conditioning hot water system with the air conditioning system. The air conditioning system at least comprises a refrigeration and heating loop and a regenerator, wherein the refrigeration and heating loop is at least composed of a compressor, a four-way valve, an outdoor heat exchanger, an expansion valve and indoor heat exchangers which are connected through pipelines; the regenerator is internally provided with two groups of heat exchangers which can output heat, and the heat exchangers are respectively connected with an air-conditioning system pipeline through the pipelines; the regenerator is also internally provided with a third heat exchanger used for storing heat for the regenerator, and a connecting pipeline of each heat exchanger is connected in series with a control valve; a circulating pipeline arranged between the indoor heat exchangers and the expansion valve is connected in series with a control valve III which is arranged between inlet access points of the two heat exchangers; waste heat of a compressor is utilized to store heat for the regenerator, when the outdoor heat exchanger generates frost deposit, the open and close of the electromagnetic valve are controlled, a refrigerant flows across the regenerator and simultaneously absorbs heat in the regenerator, and the heat is utilized to defrost; the utilization ratio of an energy source is improved; and the loss of the air conditioning system is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning system with a defrosting device and a central air conditioning hot water system with the air conditioning system. Background technique [0002] When the existing air conditioning system is in heating operation, the refrigerant flowing through the outdoor heat exchanger needs to continuously absorb the heat in the air during the vaporization process, and due to the low ambient temperature, the outdoor heat exchanger is prone to frosting. The existence of frosting greatly reduces the heat exchange efficiency of the heat exchanger and reduces the performance of the whole machine; the existence of this phenomenon will cause a greater impact in the central air-conditioning hot water system. In the air-conditioning hot water system, the defrosting methods widely used are the reverse cycle defrosting method and the hot gas bypass defrosting method. The rever...

AI Technical Summary

Problems solved by technology

Although it adds the method of using condensation waste heat and waste water waste heat in the shower room during the defrosting process, it does not fundamentally solve the reversing problem of the four-way valve, and it will affect the heating of the air conditioner during the defrosting process The heating efficiency of the system, resulting in a drop in room temperature

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