Air conditioning system capable of recovering indoor residual heat and cold energy after shutdown

Abstract

The invention relates to an air conditioning system capable of recovering indoor residual heat and cold energy after shutdown. The system comprises a compressor (1), a four-way reversing valve (3), anoutdoor heat exchanger (5), a first electronic expansion valve (8), an energy storage module (10), a second electronic expansion valve (12), a balance tank (14) and an indoor heat exchanger (16), wherein a refrigerant channel inlet of the outdoor heat exchanger (5), the first electronic expansion valve (8), the energy storage module (10), the second electronic expansion valve (12), the balance tank (14) and a refrigerant channel outlet of the indoor heat exchanger (16) are sequentially connected through a connecting pipeline; and an interface A of the four-way reversing valve (3) is connectedwith the refrigerant channel outlet of the indoor heat exchanger (16), an interface B and an interface C are connected with an air suction port and an exhaust port of the compressor (1), and an interface D is connected with the refrigerant channel inlet of the outdoor heat exchanger (5). Compared with the prior art, the system has the advantages of energy saving, rapid cooling increasing, convenient retrofit and the like.

Description

technical field [0001] The invention relates to a vapor compression air-conditioning system, in particular to an air-conditioning system capable of recovering residual cold and heat in the room after shutdown. Background technique [0002] With the improvement of people's living standards, more and more families have installed air-conditioning systems to meet the needs of cooling in summer and heating in winter. [0003] In hot summer, the outdoor temperature can reach above 35°C. After turning on the air conditioner, the indoor temperature can drop to a comfortable temperature zone of around 27°C. When people prepare to leave the air-conditioned room for a period of time, they generally turn off the air-conditioner to save electricity. After the air conditioner is shut down, due to the infiltration of high temperature outdoor heat, the indoor temperature gradually rises close to the outdoor temperature and the cooling capacity is lost. When people return to the room and t...

AI Technical Summary

Problems solved by technology

The current main defrosting method is to switch the operating state of the unit and use the heat of the compressor to defrost. Due to the lack of low-level heat source, this defrosting method results in longer defrosting time and higher energy consumption. There may also be indoor cold wind. The problem that reduces the thermal comfort of the human body

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