Refrigerated trucks are very common in life and are often used to transport some fruits and vegetables, dairy products or other enclosed vans that require frozen foods, and are dedicated transport vehicles equipped with refrigeration units for refrigeration units. However, there are many misunderstandings in the use of refrigerated truck chillers. The following are some of the most common misunderstandings I've summarized for you to help you properly understand and use chillers.
Misunderstanding 1: The greater the refrigeration capacity of refrigerator cars , the better.
The advantage of large refrigeration capacity is that the cooling rate of the box is fast, the pressure in the compressor system drops quickly, and the horsepower consumption of the engine is less.
However, the disadvantage is that the amount of electricity consumed by the battery is relatively large, and the battery is often depleted, and the phenomenon of fire cannot be sustained. This is particularly the case with diesel vehicles.
The best principle for refrigerating trucks to install refrigerators is to match them. It's not good if they are big and small.
Myth: Close refrigerated trucks unloading goods chiller assembly
When loading and unloading, the refrigeration unit must be turned off. Many people do not shut down the refrigeration unit when loading or unloading cargo, thinking that this can make the temperature of the goods rise more slowly. In fact, this is a very wrong understanding. If the refrigeration unit is not turned off, when the door of the car is opened, because the fan of the evaporator of the refrigeration unit is working, the fan blows the cool air from the upper part of the cabin, and the lower part will rapidly suck in the hot air from outside, resulting in the rapid increase of the temperature inside the cabin. If the goods are shut down and then loaded and unloaded, the air flow stops due to the fan being stopped, the air pressure inside and outside the cabin is the same, and the speed of the hot air entering outside is slower.
Misunderstanding 3: The greater the refrigeration capacity of refrigerator cars , the better.
The advantage of large refrigeration capacity is that the cooling rate of the box is fast, the pressure in the compressor system drops quickly, and the horsepower consumption of the engine is less.
However, the disadvantage is that the amount of electricity consumed by the battery is relatively large, and the battery is often depleted, and the phenomenon of fire cannot be sustained. This is particularly the case with diesel vehicles.
The best principle for refrigerating trucks to install refrigerators is to match them. It's not good if they are big and small.
Misunderstanding 4: The less goods, the better the temperature?
The smaller the goods, the greater the volume of air inside the box, which is one of the reasons why Mengniu's probiotic milk temperature is difficult to fight.
Reasons: 1) The volume of air is too large for half-car goods.
2) Fermentation of heat produced by the goods themselves.
Myth 5: Refrigerated cars are cold storage
A refrigerated truck is not a cold storage. In the concept of many people, a refrigerating unit on a refrigerated truck is free to freeze or heat the cargo loaded into the compartment to its required temperature. In fact, the refrigeration unit is used to maintain the temperature of the cargo, not to reduce the temperature of the cargo. It is similar to the quilt used to sell cold drinks in the past. It wraps the goods. When the outside temperature passes radiation, conduction, and convection into the compartment of the refrigerated truck, it will be carried away by the cooling air blown by the refrigeration unit, blocking the heat source from entering the goods.
The above are some of the practical misunderstandings of refrigerating truck refrigerators compiled by Xiao Bian. We hope to help everyone.
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