Chongqing refrigerated trucks are commonly used for transporting frozen foods (refrigerated trucks), dairy products (dairy transport trucks), vegetables and fruits (fresh goods transport trucks), vaccines and drugs (vaccine transport trucks), etc.

A refrigerated truck is a refrigerated transport vehicle equipped with a refrigeration unit and a polyurethane insulated compartment. Refrigerated trucks can be classified according to the manufacturer, chassis carrying capacity, and compartment type.

The container of a refrigerated truck needs to be strictly sealed to reduce heat exchange with the outside world, in order to maintain a lower temperature inside the refrigerated container.

The installed refrigeration equipment is connected to the container and provides continuous cooling to ensure that the temperature of the container is within the allowable range of the goods.

Generally, goods transported by refrigerated trucks are items that cannot be stored for a long time. Although there is refrigeration equipment, they still need to be delivered to the destination quickly.

The emergence of refrigerated trucks has enabled long-distance transportation of many perishable fruits, meats, cold drinks, and other food items that are prone to spoilage and decay under frozen and fresh conditions.

In the past, some refrigerated trucks used ice refrigeration to keep the temperature below -8 ℃ by placing a mixture of large ice cubes and salt inside the compartment.

However, this refrigeration method can only last for a limited period of time. If long-distance refrigerated transportation is to be carried out, a series of places equipped with ice salt should be set up along the transportation route to continuously replenish the "ice source" of the refrigerated truck and maintain the refrigeration effect.

1. A refrigeration unit is used to maintain the temperature of goods, not to lower the temperature of goods. Many users of refrigerated trucks have a misconception that the refrigeration unit on small refrigerated trucks can freely freeze or heat the goods loaded into the compartment to the desired temperature.

2. Because the refrigeration unit of the refrigerated truck does not lower the temperature of the goods, but maintains the temperature of the goods, it is like the cotton quilt we used to wrap the goods when selling cold drinks in the past. When the external cold (heat) source radiates, conducts, and convection into the compartment, it is carried away by the cold air blown out by the refrigeration unit, isolating the heat source from entering the goods.