The invention discloses an air-source
air conditioning system provided with double heat storage devices. The air-source
air conditioning system comprises a compressor, a four-way
reversing valve, an indoor
heat exchanger, an outdoor
heat exchanger and a
refrigerant replenishing
machine; air compressed by the compressor is fed via a first interface of the four-way
reversing valve, is discharged viaa third interface of the four-way
reversing valve and is condensed in the outdoor
heat exchanger; the condensed liquid flows to a
drying filter sequentially via the
refrigerant replenishing
machine and a first one-way valve; the liquid is divided into two routes after flowing out of the
drying filter, one
route of the liquid flows through a seventh
electromagnetic valve, a
thermal expansion valve, a heat radiating and accumulating heat exchanger, an eighth
electromagnetic valve and an
injector and afterwards enters the four-way reversing valve together with the air discharged from the compressor; the other
route of liquid flows into an air and liquid separator via a third
electromagnetic valve, a third one-way valve, a second electromagnetic valve, a fifth electromagnetic valve, the indoor heat exchanger and the four-way reversing valve; and the separated air flows into the compressor to be compressed. The air-source
air conditioning system disclosed by the invention adopts double heat-storage heat exchangers, realizes
defrosting, provides a low-level heat source capable of continuously supplying heat, and is beneficial for
miniaturization of the heat radiating and accumulating heat exchanger.