1. If the cargo is transported at the necessary temperature, it may deteriorate. If the cargo with too high or too low temperature is loaded into the compartment of the refrigerated truck, then the refrigeration unit is set to the necessary transport temperature of the transported cargo, and the temperature of the cargo is lowered after a certain period of time. To or to the temperature necessary for it. However, the opposite is true. The goods can not only drop the temperature (or not rise), but cause the goods to be damaged or deteriorated. The cold air blown by the cold unit will change the temperature of the cargo, and the moisture of the cargo will be lost, which will lead to the quality change of the cargo, resulting in the deterioration of the quality of the cargo, the shortening of the storage period, and even the corruption of the cargo. It is very likely that you are pulling a car with fresh beans. Shanghai Refrigerated Cars Co., Ltd. said that the destination beans will be more "dry" and the weight will be reduced, causing trouble. This is also why refrigerated trucks generally go to the cold storage, and rarely go to the field to directly pull the goods.
2, the refrigerated truck is not a cold storage Refrigeration unit is mainly a refrigerated refrigerated truck is not a cold storage, in many people's concept, the refrigerating unit on the refrigerated truck is free to freeze or heat the cargo loaded into the compartment to the necessary temperature. Shanghai Automotive Refrigeration Unit Company stated that the refrigeration unit is used to maintain the temperature of the cargo, not to reduce the temperature of the cargo. It’s a bit like the one used to sell cold drinks in the past.
The quilt wraps the cargo. When the outside temperature enters the car of the refrigerated truck through radiation, conduction, and convection, it will be taken away by the cold air blown out by the refrigeration unit to insulate the heat source from entering the cargo.
3, close the chiller assembly cargo unloading reefer temperature loss is slower in the loading and unloading must be shut down the refrigeration unit, many people do not close the refrigeration unit when loading and unloading, thinking that this can make the temperature of the goods rise slower, in fact This is a very wrong understanding.
4, often clean the refrigerated compartments to keep the interior of the compartment clean and clean the refrigerated compartment has two functions, one is to maintain the internal sanitation of the compartment, to prevent the strange smell inside the compartment. This should be well understood. The refrigerated truck is a bit like a refrigerator. If you don't pay attention to cleaning, it is easy to have a strange smell. Shanghai Cold King Refrigeration Unit Company stated that refrigerated trucks often carry different cargo, especially fish, meat, etc. It is best to clean the compartment once after each shipment.
5. Before loading, you must first pre-cool or pre-heat the car. Before loading, you must first pre-cool or pre-heat the car for about 1.5 hours. Shanghai Transport Refrigeration Co., Ltd. stated that because the vehicle is parked in the open air, the temperature of the cabin is usually the temperature of the external environment. Generally speaking, the temperature of the cargo being transported cannot be the ambient temperature. If so, there is no need to transport the truck. When the goods are loaded into the car, the ambient temperature inside the car will affect the temperature of the goods, which will result in changes in the quality of the goods being transported. Therefore, the car must be pre-cooled to the necessary temperature before loading.
