Heat exchangers, heat exchange systems and air conditioners

Abstract

The invention discloses a heat exchanger, a heat exchange system and an air conditioner. The heat exchanger includes multiple rows of sub-heat exchangers, and the multiple rows of sub-heat exchangers are arranged along the thickness direction of the sub-heat exchangers and parallel to each other. , the heat exchanger has a plurality of refrigerant systems, and each of the refrigerant systems is distributed on at least two rows of sub-heat exchangers; wherein, in a plane perpendicular to the thickness direction of the sub-heat exchangers, the same refrigerant The projections of the parts of the system on any two rows of sub-heat exchangers are at least partially non-overlapping. The heat exchanger according to the embodiment of the present invention is suitable for multi-refrigerant circuits, and has the advantages of high heat exchange efficiency, uniform outlet air temperature, and the like.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular, to a heat exchanger, a heat exchange system with the heat exchanger, and an air conditioner with the heat exchange system. Background technique [0002] In the related art, some air conditioners such as commercial air conditioners use multiple refrigerant circuits. Taking dual refrigerant circuits as an example, under low load, a certain refrigerant circuit can be controlled to stop to adapt to load changes and provide better operating efficiency. [0003] However, multiple refrigerant circuits share one fan. When the whole machine is running at partial load, assuming that only one refrigerant circuit is running, since the multiple refrigerant circuits are relatively independent, only this refrigerant circuit has refrigerant flow, while other non-operating There is no refrigerant flow in the refrigerant circuit, which causes the air volume of other refrigerant circuits to be...

AI Technical Summary

Problems solved by technology

[0003] However, multiple refrigerant circuits share one fan. When the whole machine is running at partial load, assuming that only one refrigerant circuit is running, since multiple refrigerant circuits are relatively independent, only this refrigerant circuit has refrigerant flow, while other non-operating There is no refrigerant flow in the refrigerant circuit, which causes the air volume of other refrigerant circuits to be bypassed and not participate in heat exchange. The overall effective utilization rate of the heat exchanger is low, the heat exchange efficiency is low, and the temperature difference of the air outlet of multiple refrigerant circuits is large. Exhaust air temperature is very uneven

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