what is 404a refrigerant used for?
创建于04.16
R404A refrigerant is a commonly used medium and low temperature mixed refrigerant, mainly composed of R125, R143a and R134a, with efficient refrigeration performance and stable chemical properties. Main uses:
一，Commercial refrigeration
- Supermarket and retail equipment: widely used in supermarket refrigerated display cabinets, freezers, ice cream machines, etc., for keeping food (such as meat, dairy products, cold drinks) stored and displayed at low temperature.
- Commercial freezers and cold storage: small and medium-sized cold storage, low-temperature storage equipment to meet the needs of food processing, medical storage (such as vaccines, reagents) and other low-temperature environment.
二，Industrial refrigeration and freezing
- Industrial chillers and freezers: provide low temperature cooling for industrial production processes, such as cooling systems in chemical, electronics, plastic processing and other fields, or for controlling the temperature of precision equipment.
2.Food processing and quick-freezing: In food processing plants, it is used in quick-freezing production lines (such as meat and seafood quick-freezing), low temperature drying and other links to ensure food quality and extend shelf life.
三，Transport refrigeration
- Refrigerated transportation equipment: refrigerated trucks, refrigerated containers and refrigeration systems of railway refrigerated carriages to ensure that fresh, medical and other goods are in a stable low temperature environment during transportation.
四，Other low temperature applications
1.）Laboratory and medical equipment: low temperature test box, medical freezing equipment (such as blood, cell sample storage).
2.) Air conditioning systems (special scenarios) : Some low-temperature air conditioning or heat pump systems (although more common in medium and high temperature refrigerants, but may be used in specific low temperature requirements).
Features and Precautions
1.) Advantages: high refrigeration efficiency, wide applicable temperature range (evaporation temperature of about -40°C to -25°C), and good compatibility with traditional refrigeration systems.
2.) Environmental issues: Due to its high global warming potential (GWP=3922), it has been gradually restricted by the Montreal Protocol amendment and national environmental regulations, and is now gradually replaced by low-GWP alternative refrigerants (such as R448A, R449A, R513A, etc.).
3.)R404A, with its excellent low temperature performance, was once the mainstream choice in the field of low to medium temperature refrigeration, but its high environmental impact has prompted the industry to transition to more environmentally friendly refrigerants. It remains one of the most reliable refrigeration solutions in areas and scenarios where it is still allowed
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