What are the common types of refrigerator refrigerants? []

At present, the main refrigerators are divided into: motor compression type, absorption type, electromagnetic oscillation type and semiconductor type refrigerators according to the cooling method. According to the cooling method in the refrigerator, forced circulation of cold air: also known as indirect cooling (air-cooled) or frost-free refrigerator. There is a small fan in the refrigerator to force the air in the box to flow, so the temperature in the box is uniform, the cooling speed is fast, and it is easy to use. However, due to the defrosting system, the power consumption is slightly larger, and the manufacturing is relatively complicated. Air-conditioning natural convection type: also known as direct cooling or frost refrigerator. The freezer compartment is directly enclosed by an evaporator, or there is an evaporator in the freezer, and there is an evaporator on the upper part of the refrigerating compartment, and the evaporator directly absorbs heat to cool down. This type of refrigerator has a relatively simple structure and low power consumption, but has a slightly lower temperature inefficiency and is relatively inconvenient to use.

The refrigerant used in refrigerators can be divided into several categories:

1. Inorganic compound refrigerant (ammonia , Carbon dioxide water, etc.), this type of refrigerant is mainly used in industry.

2. Freon refrigerants (R12, R22, etc.) are the most commonly used refrigerants in our early home refrigeration appliances. The stability of this refrigerant is currently the most Stable refrigerant, only because it pollutes the atmosphere, so I reluctantly find a refrigerant that can replace R12.

3. Hydrocarbon refrigerants (methane, ethane, ethylene, propylene, etc.) are mainly used in the petroleum and chemical industries.

4. The last type of refrigerant is a refrigerant that we are currently using widely to replace R12. R134A mixed working fluid R600A This is currently more common in society. The mixed working fluid should not be regarded as a fluorine-free refrigerant at present, because it is a mixture of R22 and R502, which contains fluorine. It is just A transitional product. Strictly speaking, R134A should not be regarded as a fluorine-free refrigerant, because it also has fluorine content, and it is also a transitional product that replaces R12.

5. The last one is R600A, which is currently the most widely used refrigerant in household refrigerators and freezers. It is the refrigerant found to be the closest to the refrigeration performance of R12. Moreover, the amount used is quite saving, only 1/3 of R12 refrigerant. Although there are certain problems, the effect is still relatively good.

The common refrigerator refrigerants are mainly these, the most widely used is R600A, and there will be better refrigerant substitutes that will continue to be updated in the future.

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