It is a common phenomenon that the temperature of the cold storage does not drop and the temperature drops slowly, but it should be dealt with in time to avoid more serious problems in the cold storage.
Today, the editor will talk to you about the problems and solutions in this area, hoping to give you some practical help.
Under normal circumstances, most of the above problems are due to the irregular use of cold storage by users. For a long time, the failure of cold storage is a common phenomenon. Generally speaking, the reasons for the temperature drop in cold storage projects are as follows:
1. There is more air or refrigeration oil in the evaporator, and the heat transfer effect is reduced;
Solution: Ask engineei to check the evaporator regularly, and clean up the garbage in the corresponding place, and choose a big brand air cooler (the most intuitive method for the pros and cons of the air cooler: the weight of the inner unit with the same number of horses, and the defrosting power of the heating tube).
2. The amount of refrigerant in the system is insufficient, and the cooling capacity is insufficient;
Solution: Replace the refrigerant to improve the cooling capacity.
3. The compressor efficiency is low, and the cooling capacity cannot meet the warehouse load requirements;
Solution: If you have tried all the above methods and still feel that the cooling efficiency is low, then you have to check whether there is a problem with the compressor;
4. Another important reason for the large cooling loss is the poor sealing performance of the warehouse, and more hot air intrudes into the warehouse from the leak. Generally, if there is condensation on the sealing strip of the warehouse door or the sealing of the insulation wall of the cold storage project, it means that the sealing is not tight.
Solution: Regularly check the tightness in the warehouse, especially pay attention to whether there is dead dew on the dead angle film.
5. The throttle valve is improperly adjusted or blocked, and the refrigerant flow is too large or too small;
Solution: Check the throttle valve regularly every day, test the refrigerant flow, maintain stable cooling, and avoid too large or too small.
6. Frequent opening and closing of the warehouse door or more people entering the warehouse together will also increase the cooling loss of the warehouse.
Solution: Try to avoid opening the warehouse door too frequently to prevent a lot of hot air from entering the warehouse. Of course, when the warehouse is frequently stocked or the stock is too large, the heat load increases sharply, and it generally takes a long time to cool down to the specified temperature.A
Post time: Jun-16-2022