Enhanced vapor injection air conditioner system

Abstract

The invention discloses an enhanced vapor injection air conditioner system which comprises a vapor injection compressor, a reversing assembly, a first outdoor heat exchanger, a second outdoor heat exchanger and an auxiliary electronic expansion valve assembly. The vapor injection compressor is provided with an exhaust opening, a vapor return opening and an injection opening. The reversing assembly is provided with a first valve opening, a second valve opening, a third valve opening and a fourth valve opening. The second outdoor heat exchanger comprises a first heat exchange flow path and a second heat exchange flow path which exchange heat with each other. A main electronic expansion valve assembly is connected between the first end of the first heat exchange flow path and the second end of the first outdoor heat exchanger. The first end of the auxiliary electronic expansion valve assembly is connected with an inlet of the second heat exchange flow path. The second end of the auxiliary electronic expansion valve assembly is connected to the second end of the first heat exchange flow path, or the second end of the auxiliary electronic expansion valve assembly is connected between the main electronic expansion valve assembly and the first heat exchange flow path. The value of the ratio DB of the sum of the caliber of the main electronic expansion valve assembly to the sum of the caliber of the auxiliary electronic expansion valve assembly ranges from 1 to 7.

Description

technical field [0001] The invention relates to the field of vapor compression refrigeration and air conditioning, in particular to an air-jet enthalpy-increasing air-conditioning system. Background technique [0002] It is pointed out in related technologies that air-conditioning systems are used more and more widely, and are more and more widely applicable to various offices, residences and other places. People have higher and higher requirements for air-conditioning comfort, especially more and more attention to low outdoor temperature The comfort of heating. However, despite the continuous advancement of air-conditioning technology, when most air-conditioners heat or heat water at low temperatures, it is inevitable that the heating effect will drop sharply as the outdoor temperature decreases, resulting in the deviation of the indoor temperature. Low or low outlet water temperature, which reduces the comfort of the air conditioner. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

However, despite the continuous advancement of air-conditioning technology, when most air-conditioners heat or heat water at low temperatures, it is inevitable that the heating effect will drop sharply as the outdoor temperature decreases, resulting in the deviation of the indoor temperature. Low or low outlet water temperature, which reduces the comfort of the air conditioner

Images