Air conditioner circulating system and method for controlling air supply amount of dual-stage compressor

Abstract

The invention provides an air conditioner circulating system and a method for controlling the air supply amount of a dual-stage compressor. The system comprises a compressor, an outdoor heat exchanger, a flash evaporator, an indoor heat exchanger, a first temperature sensing device, a first flow adjusting device and a second temperature sensing device, wherein the compressor is provided with a first air suction port, a second air suction port and an air outlet; the outdoor heat exchanger is provided with a first end interface and a second end interface; the first end interface is communicated with the second air suction port or the air outlet; the flash evaporator is provided with a first interface, a second interface and a third interface; the first interface is communicated with the first air suction port; the second interface is communicated with the second end interface; the indoor heat exchanger is provided with a third end interface and a fourth end interface; the third end interface is communicated with the third interface; when the outdoor heat exchanger is communicated with the second air suction port, the fourth end interface is communicated with the air outlet; when the outdoor heat exchanger is communicated with the air outlet, the fourth end interface is communicated with the second air suction port; the first temperature sensing device is arranged on a first connection pipeline between the first air suction port and the first interface; the first flow adjusting device is arranged on a second connection pipeline between the outdoor heat exchanger and the second interface; the second temperature sensing device is arranged on the first connection pipeline. According to the air conditioner circulating system and the method, the air supply amount of the compressor can be controlled.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning cycle system and a method for controlling the air supply volume of a two-stage compressor. Background technique [0002] At present, the two-stage compressor air-conditioning circulation system with a flash evaporator, when using an inverter compressor, it is difficult to accurately control the air supply volume of the compressor under different compressor frequencies and indoor and outdoor temperatures, which will affect the performance of the compressor. At the same time, the heat exchange flow of the indoor heat exchanger and the air supply flow of the compressor need to be distributed by the total flow passing through the outdoor heat exchanger. When the flow ratio distribution is not good, there will be poor air supply and the performance of the compressor will decline. Or the problem that the overheating of the evaporator causes the heat exchang...

AI Technical Summary

Problems solved by technology

[0002] At present, the two-stage compressor air-conditioning circulation system with a flash evaporator, when using an inverter compressor, it is difficult to accurately control the amount of air supplied to the compressor under different compressor frequencies and indoor and outdoor temperatures, which will affect the performance of the compressor

At the same time, the heat exchange flow of the indoor heat exchanger and the air supply flow of the compressor need to be distributed by the total flow passing through the outdoor heat exchanger. When the flow ratio distribution is not good, there will be poor air supply and the performance of the compressor will decline. Or the problem that the heat exchange capacity is reduced due to the overheating of the evaporator

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