Why set the temperature range of the refrigeration unit?
As we all know, when loading, the compartment must be pre-cooled first, because the trailer is parked in the open air, and the temperature of the compartment is usually the ambient temperature. If the temperature of the goods being transported is not the ambient temperature, and the goods are loaded into the compartment, the ambient temperature will affect the temperature of the transported goods, resulting in changes in the quality of the transported goods.
During the transportation of the cooling unit, it is used to maintain the temperature of the goods, not to reduce the temperature of the goods. When the external cold (heat) source is radiated, conducted, and convection into the box, the cold air belt blown by the refrigeration unit Go, isolate the heat source from entering the goods, so that the transported products can always be maintained in a constant temperature range.
Therefore, when loading the cargo, the customer must first measure the temperature of the loaded cargo. If the set point temperature of the refrigeration unit is higher or lower than the cargo temperature, it is difficult for the cargo temperature in the compartment to reach the temperature required for transportation. The storage temperature of the goods must be consistent with the transportation temperature. If the temperature of the goods changes frequently, moisture will be lost, which will lead to changes in the quality of the goods, which will shorten the shelf life of the goods.
So, taking into account the saving of transportation costs, how to correctly set the temperature of the refrigeration unit during loading and transportation? First we should refer to the type of cargo being pulled.
For pulling cold drink sorbet, etc., the general temperature setting should be -5° to -15°. Of course, the internal temperature can be adjusted freely for different types of pulling goods. The minimum temperature can be adjusted to minus 30°C, the highest It can be adjusted to 20°C. For frozen meat, aquatic products, quick-frozen food, etc., because such food is easily deteriorated during transportation and storage, the temperature can generally be adjusted to minus 15°C to meet the demand, so set refrigeration The temperature range of the unit can effectively avoid product deterioration.