What is the difference between the use of refrigerant R22 and R134A

r134a refrigerant is a new type of refrigerant. It has good safety, colorless, odorless, non-combustible, non-explosive, basically non-toxic, and stable chemical properties. It belongs to the HFC refrigerant and has no destructive effect on the ozone layer. But there is a certain greenhouse effect. Compared with r22, its cooling efficiency is lower, and the price is about three times that of r22. According to the current international agreement, r134a refrigerant can be used for a long time.

The application characteristics of R22 and R134a are analyzed as follows: 1. The global warming potential (GWP) of R134a is 1200, and R22 is 1700, which are both greenhouse gases. 2. The ozone depletion potential (ODP) of R134a is 0, R22 is 0.06, which is the reason why R134a has become an environmentally friendly refrigerant.

There is basically no difference in the overall structure between the central air conditioner of R134a refrigerant and the air conditioner unit using R22 It’s just that in the case of the same cooling capacity, the condenser and evaporator of the R134a unit need to be increased compared to the R22. In addition, the specifications of the compressor and expansion valve are also different. In use, according to the Montreal The treaty stipulates that R22 in developing countries can be used until 2040, and R134a is a transitional type of sub-environmental refrigerant. However, the market price is much higher than R22.

Will The application characteristics of R22 Freon and R134a Freon are analyzed as follows: 1. The global warming potential (GWP) of R134a Freon is 0.25, and that of R22 Freon is 0.36, which are both greenhouse gases. 2. The Ozone Depletion Potential (ODP) of R134a refrigerant R22 refrigerant is 0.06, which is an important reason why R134a refrigerant has become an environmentally friendly refrigerant.

The types of refrigerants are completely different. The working pressure value is different, the key state parameters of the air conditioning and refrigeration system are different, and the refrigerant has different requirements for the moisture content in the system pipeline. The pressure value of the r134a refrigerant is lower than that of r22, and the work efficiency is lower than that of r22, which requires a lot of moisture content. High, no excessive moisture can exist in the pipeline. The corresponding refrigerating oil is synthetic ester oil. R22 refrigerant has a slightly lower moisture content requirement, and the corresponding refrigerating oil is mineral oil.

In the field of management, there are many ways to distinguish different things. For things like refrigerants, the color difference method is used, that is, in different types of steel cylinders. Brush different colors on the same position, that is, R22 uniformly brushes one color, and R134a uniformly brushes another color, so that the distinction is very clear, and it is clear at a glance in the actual operation and application process, and there will be no errors. .

R134a (1,1,1,2-tetrafluoroethane) is one of the most widely used medium and low temperature environmentally friendly refrigerants. It has It has good overall performance, making it a very effective and safe alternative to R12 (dichlorodifluoromethane), which can be used in most areas where R12 refrigerants are used. R22 is colorless at room temperature and almost odorless The gas is non-combustible, non-explosive, non-corrosive, and its toxicity is slightly greater than that of R12, but it is still a safe refrigerant, and the safety classification is A1. Compared with the two, from the perspective of environmental protection, the refrigerant R134a will be more environmentally friendly.

R134a refrigerant is a new type of refrigerant. It has good safety, colorless, odorless, non-flammable, non-explosive, basically non-toxic, and stable chemical properties. It belongs to HFC refrigerants have no destructive effect on the ozone layer, but have a certain greenhouse effect. R22 has a higher cooling efficiency than R134a and a lower price than R134a. If it leaks into the atmosphere, it will cause certain damage to the ozone layer. Generally speaking, R134a is relatively R22 is more environmentally friendly, but its thermal conductivity is about 10% lower than R22.

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