Why is R410A more environmentally friendly than R22?

In the refrigeration cycle system, the refrigerant performs gas-liquid conversion through the compressor's work, and undergoes the heat absorption-vaporization-compression-liquefaction-heat absorption cycle process to 'transport' indoor and outdoor heat. Different types of compressors use different refrigerants. The refrigerants widely used in household air conditioners are R22 and r410a. The editor introduces the differences between these two refrigerants.

The chemical name of R22 is difluorochloromethane, which is one of the freons and belongs to hydrochlorofluorocarbons. At present, R22 refrigerant still accounts for the largest proportion in the use of air conditioners, mainly some old air conditioners are in use. Because R22 refrigerant contains 'cl' element, it has great harm to the ozone layer. It is currently being phased out.

R410A refrigerant is one of the currently positioned environmentally friendly refrigerants. It is composed of two quasi-azeotropic mixtures, mainly composed of hydrogen, fluorine and carbon. , It has the characteristics of stability, non-toxicity and superior performance. At the same time, since it does not contain chlorine, it will not react with ozone and will not destroy the ozone layer. In addition, the performance of air conditioners using new refrigerants will also be improved to a certain extent. R410A is the most suitable refrigerant to replace R22, which is recognized internationally so far, and it is popularized in Europe, America, Japan and other countries.

Why does R410A replace R22?

1. R410A is of low toxicity, and R22 is slightly toxic. It will be more secure in terms of safety in use.

2. For environmental hazards, the ozone layer destruction coefficient of R410A is 0, and the ozone layer destruction coefficient of R22 is 0.05. So R410A refrigerant has more advantages.

3. When using R410A, the total heat transfer characteristics of the system are larger than R22, so the system efficiency can be improved and the heat transfer area of u200bu200bthe heat exchanger can be reduced. The air conditioner is more smooth to use, and the chance of failure is much smaller.

Although R410A refrigerant is more environmentally friendly and superior than R22, the standard refrigerant model on the compressor must be used for maintenance and addition. R410a refrigerant cannot be added to the air conditioner marked with R22 , This will cause damage to the compressor of the air conditioner. When buying air conditioners, try to choose air conditioners that use new environmentally friendly refrigerants.

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