What are the types and differences of air conditioning refrigerants?

With the improvement of living standards, almost every household is currently equipped with air conditioners, but there is not much knowledge about the inside of the air conditioner. I only know that the air conditioner is not cooling, it is lack of fluorine, and the working principle of the air conditioner , What is the difference between the model of refrigerant used and other models. In fact, the main refrigeration of air conditioners is that there are air conditioner refrigerants in the air conditioners. The air conditioner refrigerants are actually the same as the refrigerator refrigerants. Today, I will tell you about the types of air conditioner refrigerants and the characteristics of the air conditioner refrigerants.

Types of air-conditioning refrigerants The refrigerants widely used in compression refrigerants are ammonia, freons and hydrocarbons.

According to chemical composition, refrigerants can be divided into five categories:

Inorganic compound refrigerants, Freon, saturated hydrocarbon refrigerants, unsaturated hydrocarbon refrigerants and common Boiling mixture refrigerant.

According to the condensation pressure, refrigerants can be divided into three categories: high temperature (low pressure) refrigerants, medium temperature (medium pressure) refrigerants and low temperature (high pressure) refrigerants.

Commonly used Freon refrigerants are R12, R22, R502 and R1341a, because other types of refrigerants are now deactivated or banned.

Freon 12 (CF2CL2, R12): Freon refrigerant is one of the most widely used refrigerants, mainly for medium and small food storages, household refrigerators, and refrigeration equipment such as water and road refrigeration transportation. Is widely adopted.

Freon 22 (CHF2CL, R22): It is one of the most widely used Freon refrigerants, mainly used in household air conditioners and low-temperature refrigerators.

Freon 502 (R502): R502 is an azeotropic solution made by mixing R12 and R22 at the percentages of 51.2% and 48.8%.

Freon 134a (C2H2F4, R134a): It is a relatively new type of refrigerant with an evaporation temperature of -26.5°C.

Freon r410a is a kind of refrigerant that is slowly trending in current air conditioners. It is an environmentally friendly refrigerant.

Characteristics of air-conditioning refrigerants

1. It has a certain degree of water absorption, so as not to form 'ice plugs' in the refrigeration system, affecting normal operation .

2. It should have a certain degree of water absorption, so as not to form an 'ice plug' in the refrigeration system and affect normal operation.

3. It should be chemically stable: non-combustible, non-explosive, does not decompose or deteriorate during use. At the same time, the refrigerant itself or when it is mixed with oil, water, etc., should not have a significant corrosive effect on the metal, and the swelling effect on the sealing material should be small. Safety requirements.

4. Since the refrigerant may leak during operation, it is required that the working fluid has no harm to human health, no toxicity, and no irritation.

The use of air conditioners, due to the gradual upgrade of the environmentally friendly refrigerants currently developed, the global trend of R410A replacement in the major international markets and the prospective use status and entry into the international market Dynamic physical properties data R410A is a mixed refrigerant. It is a mixture of R32 (difluoromethane) and R125 (pentafluoroethane). Its advantage is that it can be used according to specific requirements for various properties, such as Considering flammability, capacity, exhaust temperature and efficiency, a refrigerant is tailored. R410A is colorless, non-turbid, volatile, boiling point -51.6℃, freezing point -155℃; its main features are:

1. Does not destroy the ozone layer. Its molecular formula does not contain chlorine, so its ozone depletion potential (ODP) is 0. The global warming potential (GWP) is less than 0.2.

2. Very low toxicity. The allowable concentration is 1000 ppm, the same as R22.

3. Non-flammable. The flammable polarity in the air is zero.

4. High chemical and thermal stability

5. Water solubility is almost the same as R22.

6. It is a mixed refrigerant, composed of two refrigerants.

7. It is not compatible with mineral oil or alkyl benzene oil. (Compatible with POE[ester lubricant] and PVE[ether lubricant])

With new and upcoming social commerce technologies, the biggest change for air conditioner capacitor marketers will be a shift in focus from branding to lead generation and conversion.

Hangzhou E cool refrigeration Co.,Ltd is working with the best teams, aligned with international standards and practices to focus on R&D and manufacture of products, and are continuously launching new products in the market. Get to know us at Arkool Refrigeration.

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