Defroster used for air conditioning system and circulation energy source central air conditioning hot water system

Abstract

The invention discloses a defroster used for an air conditioning system. The defroster comprises a regenerator, wherein the regenerator is internally provided with two groups of heat exchangers which can output heat, and the heat exchangers are respectively connected to an air conditioning system pipeline through pipelines, wherein an outlet access point of a first heat exchanger is positioned between a compressor inlet and a four-way valve of the air conditioning system, and an inlet access point of the first heat exchanger is positioned between an indoor machine and an expansion valve; an outlet access point of a second heat exchanger is positioned between the four-way valve and an outdoor heat exchanger, and an inlet access point of the second heat exchanger is positioned between the indoor heat exchangers and the expansion valve; connecting pipelines of the first heat exchanger and the second heat exchanger are respectively connected in series with a control valve I and a control valve II, and a control valve III is connected in series with the indoor heat exchangers and the expansion valve of an air conditioner circulating pipeline and is arranged between the inlet access points of the two heat exchangers; the regenerator is internally provided with a third heat exchanger used for introducing heat; and the introduced heat is solar energy, the energy utilization ratio is improved in a defrosting process, and meanwhile, the loss of an air conditioner is reduced.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a phase change defrosting device for an air conditioning system and a circulating energy central air conditioning hot water system using the defrosting device. 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 gasification 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 m...

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 need for the reversing 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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