We all know that Chongqing refrigerated trucks are tools used for cold chain vehicle transportation, but did you know that the temperature setting of refrigerated trucks is actually different when transporting goods? So, how to set the temperature of refrigerated trucks.

Refrigerated truck manufacturers have learned that many transportation refrigeration professionals believe that the lower the refrigeration temperature, the better, so that the shelf life of goods can be greatly extended. However, sometimes the temperature should be set according to the required temperature of various goods.

Goods such as fruits and vegetables, if the temperature is set at the bottom of the pot, may cause damage to the goods, while meat products can be stored for a long time. However, from an economic and energy perspective, the appropriate temperature should be chosen based on the specific storage time.

For example, meat can be stored at -18 ° C for 4-6 months and at -23 ° C for 8-12 months. Therefore, the temperature design of refrigerated trucks selects the appropriate storage temperature based on the product's lifecycle and useful storage environment.

Because seafood and cold drinks do not deteriorate below -20 ° C, transporting such goods requires a refrigeration temperature of at least -20 ° C. After a period of time, the refrigeration temperature can reach up to -20 ° C.

There are no other requirements during this period, but there are strict temperature requirements for refrigerated trucks. A typical low-temperature cold storage is between -18 ° C and -23 ° C. However, for storing cold drinks containing dairy products, the storage temperature should be between -20 ° C and -28 ° C. These two different temperatures require different levels of equipment.

Air pre cooling of refrigerated trucks: The air pre cooling method has the advantages of easy adjustment of air temperature and humidity, various food cooling and refrigerated transportation, and low equipment cost.

Vacuum pre cooling of refrigerated trucks: Based on the physical properties of water with a reduced boiling point, pre cooled food is placed in a vacuum tank for evacuation. When the pressure drops to a certain value, the water on the surface of the food begins to evaporate, absorbing the heat of evaporation. The method of cooling the food itself is vacuum pre cooling.

Water pre cooling: a method of using water to lower the temperature of cooled food from the initial temperature to the desired temperature.