Air conditioning system, refrigerant state detection method and computer-readable storage medium

An air conditioning system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor performs operations of a refrigerant state detection method when executing the computer program;

• wherein the refrigerant state detection method comprises:
• adjusting first operating parameters of an air conditioning system, wherein the first operating parameters comprise a frequency of a compressor, a wind speed setting, and an opening degree of an electronic expansion valve;
• collecting second operating parameters of the air conditioning system at a preset time after the first operating parameters have been adjusted, wherein the second operating parameters comprise an outdoor environment temperature and operating parameters of the compressor;
• obtaining a refrigerant flow according to the frequency, an exhaust pressure, a return pressure and a return temperature of the compressor;
• obtaining a pressure drop of an exhaust pipeline of the compressor according to the exhaust temperature and the exhaust pressure of the compressor and the refrigerant flow;
• obtaining a heat leakage of the exhaust pipeline of the compressor according to the outdoor environment temperature, the exhaust temperature of the compressor, and the refrigerant flow;
• obtaining the heat exchanger inlet pressure according to the exhaust pressure of the compressor and the pressure drop of the exhaust pipeline;
• obtaining the heat exchanger inlet temperature according to the exhaust temperature of the compressor, the refrigerant flow, and the heat leakage of the exhaust pipeline;
• obtaining the saturation temperature corresponding to the heat exchanger inlet pressure according to the heat exchanger inlet pressure;
• and
• determining that the refrigerant at the inlet of the heat exchanger is in an overheating state in case where the heat exchanger inlet temperature is greater than a sum of the saturation temperature corresponding to the heat exchanger inlet pressure and a first preset temperature threshold;
• and determining that the refrigerant at the inlet of the heat exchanger is in a non-overheating state and adjusting the first operating parameters in case where the heat exchanger inlet temperature is less than or equal to the sum of the saturation temperature corresponding to the heat exchanger inlet pressure and the first preset temperature threshold.

A non-transitory computer-readable storage medium storing a computer program, that, when executed by a processor of an air conditioning system, causes the processor to perform operations of a refrigerant state detection method;

• wherein the refrigerant state detection method comprises:
• adjusting first operating parameters of an air conditioning system, wherein the first operating parameters comprise a frequency of a compressor, a wind speed setting, and an opening degree of an electronic expansion valve;
• collecting second operating parameters of the air conditioning system at a preset time after the first operating parameters have been adjusted, wherein the second operating parameters comprise an outdoor environment temperature and operating parameters of the compressor;
• obtaining a refrigerant flow according to the frequency, an exhaust pressure, a return pressure and a return temperature of the compressor;
• obtaining a pressure drop of an exhaust pipeline of the compressor according to the exhaust temperature and the exhaust pressure of the compressor and the refrigerant flow;
• obtaining a heat leakage of the exhaust pipeline of the compressor according to the outdoor environment temperature, the exhaust temperature of the compressor, and the refrigerant flow;
• obtaining the heat exchanger inlet pressure according to the exhaust pressure of the compressor and the pressure drop of the exhaust pipeline;
• obtaining the heat exchanger inlet temperature according to the exhaust temperature of the compressor, the refrigerant flow, and the heat leakage of the exhaust pipeline;
• obtaining the saturation temperature corresponding to the heat exchanger inlet pressure according to the heat exchanger inlet pressure;
• and
• determining that the refrigerant at the inlet of the heat exchanger is in an overheating state in case where the heat exchanger inlet temperature is greater than a sum of the saturation temperature corresponding to the heat exchanger inlet pressure and a first preset temperature threshold;
• and determining that the refrigerant at the inlet of the heat exchanger is in a non-overheating state and adjusting the first operating parameters in case where the heat exchanger inlet temperature is less than or equal to the sum of the saturation temperature corresponding to the heat exchanger inlet pressure and the first preset temperature threshold.