What are the common refrigerants?
When talking about refrigerants (refrigerants), most people first think of air conditioners. Indeed, as far as daily life is concerned, air conditioners are installed in almost every household, and the frequency of application is quite high. However, today we are not talking about air conditioners, but air energy heat pumps that have similar principles to air conditioners.
Air conditioners are mainly used for refrigeration, and air energy heat pumps are mainly used for heating. The heating principle of the heat pump is actually the inverse principle of air conditioning and refrigeration, which absorbs the heat energy in the air through the refrigerant. Therefore, it is not unreasonable to say that the refrigerant plays a key role in the heating of air energy. And what kinds of refrigerants are common in air? Let’s take a look today and walk into refrigerants:
1. R22 refrigerant
R22 is a single refrigerant, scientific name It is called difluoro-chloromethane and has a boiling point of approximately -41°C. This kind of refrigerant is colorless and odorless, and is widely used in air conditioning systems, especially in split air conditioning and air conditioning systems, which can be said to be seen everywhere. However, it has a big shortcoming, that is, it is actually a member of the Freon family. When discharged into the air, it may damage the ozone layer and cause environmental problems.
2. R134A refrigerant
The composition of R134A is different from the composition of other refrigerants. It does not contain chloride ions, is not toxic, is not flammable in the air, and is not Will cause damage to the ozone layer. It looks good, but its boiling point is relatively low, only -26.5°C, which means that if it is used in a heat pump, once the ambient temperature drops, the amount of vaporization of this refrigerant will be greatly reduced. As a result, the heating efficiency of the heat pump is reduced. Therefore, this refrigerant is not as widely used as R22, and is generally used in indoor or high-temperature heat pumps.
3. R410A refrigerant
R410A refrigerant is an environmentally friendly refrigerant developed by scientists for the deteriorating environment. It is similar to R134A, colorless, volatile and non-flammable. The composition contains R32 and R125 refrigerants, the boiling point is about -51°C, does not contain chloride ions, and does not destroy the ozone layer. The water solubility is indistinguishable from R22, but the cooling capacity has been significantly improved. Now it is also a new type of environmentally friendly refrigerant common in the air energy industry!
4. R290 refrigerant
R29 is another new environmentally friendly refrigerant, colorless, slightly soluble in water, and free of ozone. If it is mixed with air, there is a certain probability that it will explode. If it encounters an open flame, it is easy to cause accidents. At present, the industry is accustomed to use high-purity R290 refrigerant as the temperature sensing working fluid.
The above is part of the refrigerant information compiled by the editor. From the perspective of my country's continuous emphasis on energy conservation and environmental protection, the development of refrigerants for air energy heat pumps is also following the idea of u200bu200benvironmental protection and no pollution. In the future heat pump market, environmentally friendly refrigerants will surely occupy a place. Let's contribute to the blue sky defense war!
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