A detection method for air-conditioning refrigerant leakage

Abstract

The present invention provides a method for detecting the leakage of air-conditioning refrigerant, which includes the following steps: S1: determine whether the compressor is operating normally; if so, perform step S2; if not, determine that the compressor is not operating normally, and exit the refrigerant detection Procedure; S2: Judging whether the preset detection trigger condition is met; if yes, execute step S3; if not, execute step S2 again; S3: execute the detection program under the corresponding trigger condition, and judge whether leakage occurs; if yes, execute step S4 ; If not, execute step S2; S4: Execute the set refrigerant leakage protection operation; the detection method of the present invention can improve the effectiveness of refrigerant detection and enhance the safety of the entire air-conditioning system; it can achieve accurate judgment, energy saving and safety benefits.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for detecting leakage of air conditioner refrigerants. Background technique [0002] With the rapid development of air-conditioning technology, air-conditioning plays an increasingly important role in people's daily life. [0003] For the air-conditioning system, the amount of refrigerant should be kept sufficient. If there is no leakage of the refrigerant, the air-conditioning system can operate normally. Air conditioners often cause slow leakage of refrigerant in their systems due to various reasons. If the air conditioner is installed irregularly or due to long-term operation after installation, it may cause vibration. The position seal is poor, or the connecting pipe bends and leaks when passing through the wall, which will easily lead to long-term slow leakage of refrigerant in the air conditioning system pipeline. Once the refrigerant leaks, the cooling e...

AI Technical Summary

Problems solved by technology

Air conditioners often cause slow leakage of refrigerant in their systems due to various reasons. If the air conditioner is installed irregularly or due to long-term operation after installation, it may cause vibration. The position seal is poor, or the connecting pipe bends and leaks when passing through the wall, which will easily lead to long-term slow leakage of refrigerant in the air conditioning system pipeline. Once the refrigerant leaks, the cooling effect of the air conditioning system will deteriorate, and even the compressor will burn out. The phenomenon

In addition, if the system pipeline is in a harsh environment, the pipeline is prone to leakage after long-term corrosion, which gradually reduces the amount of refrigerant in the system

[0004] At present, the air-conditioning technology meets the requirements of environmental protection, energy saving and low cost. The environmentally friendly refrigerant has the disadvantage of being flammable and explosive. This characteristic is still the bottleneck restricting the large-scale industrialization of flammable refrigerant air conditioners.

The biggest risk is that the leaked refrigerant gas may cause combustion or even explosion when the concentration reaches a certain level

And because there are often many household appliances in the room, there is a risk of igniting flammable refrigerant gas

At present, there are various refrigerant detection methods, but most of them are repetitive detection, and the detection method is affected by other factors and has poor accuracy, and its detection effectiveness is poor; on the other hand, in the current refrigerant detection method, the main part of the refrigerant detection method is used to determine Refrigerant leakage, even if there is no refrigerant leakage in the above cases, it needs to be detected by the main part of the refrigerant detection method. At this time, the detection effectiveness of the main part of the multi-step refrigerant detection method is poor

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