Air conditioner system and control method thereof

Abstract

The invention discloses an air conditioner system and a control method thereof. The air conditioner system comprises an enhanced vapor injection compressor, a first reversing assembly, a second reversing assembly, two heat exchangers and a flash evaporator, wherein the enhanced vapor injection compressor is provided with an air exhausting port, an air supplementation port, a first air sucking port, a second air sucking port and an air return port; the pressure of a slide piece cavity of an air cylinder corresponding to the second air sucking port is equal to the air exhausting pressure of the air exhausting port; a first pipe port of the first reversing assembly is connected with the second air sucking port, a second pipe port of the first reversing assembly is connected with the air exhausting port, a third pipe port of the first reversing assembly is connected with a liquid storage device, and the first pipe port communicates with the second pipe port or the third pipe port; an air outlet of the flash evaporator communicates with the air supplementation port. The air conditioner system can use a double-rotor mode when large-capacity output is needed during refrigeration at high temperature and heating at low temperature and use a single-rotor mode during refrigeration at low temperature and heating at high temperature.

Description

Technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an air conditioning system and a control method of the air conditioning system. Background technique [0002] With the development of society and the popularization of frequency conversion household air conditioners, people have higher requirements for household air conditioners, such as requiring quick adjustment of room temperature, energy saving, strong cooling at high temperatures, and strong heating at low temperatures. and many more. However, ordinary inverter air conditioners mostly use single-rotor compressors due to cost reasons. Due to the unidirectional force on the rotor, the vibration and noise are relatively large, especially at low frequencies. The vibration is too large, which has a greater impact on the reliability of the whole machine and is also affected by noise. Restrictions: The maximum operating frequency of the air conditioner cannot be too hig...

AI Technical Summary

Problems solved by technology

However, ordinary inverter air conditioners mostly use single-rotor compressors due to cost reasons. Due to the unidirectional force on the rotor, the vibration and noise are relatively large, especially at low frequencies. The vibration is too large, which has a great impact on the reliability of the whole machine. Limitation, the maximum operating frequency of the air conditioner should not be too high, so that the capacity of the air conditioner cannot reach the maximum; if an ordinary dual-rotor compressor is used, due to the increase in the leakage of the cylinder, the performance system of the whole machine is poor, which is not conducive to energy saving; Another common dual-rotor dual-mode compressor can solve some of the above problems, but when the ultra-high temperature refrigeration and ultra-low temperature heating, due to the increase of the compression ratio of the compressor, the system performance drops sharply

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