When cold chain transportation, it is necessary to measure the temperature of the goods first. If the temperature set point of the refrigeration equipment is higher or lower than the product transportation temperature, it is difficult to reach the required temperature, so it is necessary to use pre-cooling and insulation for refrigerated transportation. Because the introduction of refrigerated transportation knows that the storage temperature and the goods to be transported must be the same, the following is a specific introduction to the use of pre-cooling and insulation in cold chain transportation.

1. Avoid blockage

The air circulation of refrigerated transportation is the main reason for the unstable quality of goods. A qualified refrigerated refrigerated truck must ensure that the car has outstanding ventilation and refrigerated transportation appearance without any obstruction to the product. Outstanding air circulation can ensure that the goods are at a suitable temperature. Require. The refrigeration unit blows to the cold (heat) source of the outside air and maintains the goods independently of other goods. If part of the cold (heat) source in the refrigerated transportation will enter the goods, it will cause the temperature of the goods to change and cause blockage. Make sure that the refrigerated air does not block the evaporator inlet (return) in outstanding conditions; lack of return air will produce irregular cold air circulation and ice top products.

2. Pre-cooling insulation

For refrigerated transportation, it is necessary to pre-cool the required temperature of the product and check the load of the product; the refrigeration equipment is used to avoid the temperature of the product instead of reducing the temperature of the product. Many users of refrigerated trucks for refrigerated transportation have a wrong concept. They always think that the refrigerator freezer can freely load goods and transport them to freeze or heat to the required temperature. Therefore, the refrigeration unit is set to the required transportation temperature for goods transported at low temperature, and the temperature drops to the goods or the required temperature through a specific time.

All in all, the role of pre-cooling and heat preservation in refrigerated transportation is to avoid blockage and pre-cooling and insulation. Frequent changes in the temperature of the goods may lead to moisture loss, which may lead to changes in the quality of the products, and then shorten the shelf life of the goods. Therefore, the use of pre-cooling and insulation in refrigerated transportation has become so important, and the low cost of refrigerated transportation is also the reason we introduced. .