With the rapid development of our country's social economy and the continuous improvement of people's living standards, in the past transportation, there are more and more types of perishable food, so the scope of use of refrigerated truck is becoming wider and wider, from frozen and refrigerated food to fresh agricultural products , Biological scientific research drugs, chemical products, electronic products, fresh flowers, high-end furniture, etc., have all been associated with refrigerated vehicles. Its purpose is to ensure stable product quality. However, product damage and other phenomena still exist during use. The reason for the correction is mainly due to the incorrect use of the refrigerated truck. So how should we use the refrigerated truck? How can we properly avoid the losses and risks caused by improper use?

1. Correct operation can ensure that the goods can be preserved and delivered in good condition. Only by using and operating the refrigerated truck correctly can the goods be delivered and preserved in good condition. Because refrigerated trucks are specially used for temperature-sensitive products, the guarantee of temperature is the most critical method of refrigerated truck operation. Improper use or handling will result in the goods not being kept or shipped in perfect condition.

2. Preventive maintenance can minimize maintenance and operating costs. In our normal use process, the maintenance and maintenance of vehicles and refrigerators are inseparable. Only when the equipment is properly maintained and maintained on time can the normal use of the equipment be guaranteed and the service life of the equipment can be extended.

3. Proper packaging is essential to protect the goods. For frozen goods, use non-ventilated packaging boxes, and for fresh goods, use sidewall-ventilated packaging boxes. The packing box must be compressive. Since the frozen goods are not allowed to have wind blowing over the surface, because the wind blowing over the surface of the frozen goods will cause the loss of moisture in the goods, resulting in a decline in the quality of the goods.

4. Set the thermostat at the desired temperature, pre-cool the car for 1.5 hours to remove the heat trapped in the car; turn off the refrigeration unit when loading, and quickly load the car. The goods must be pre-cooled to the required temperature, and the temperature of the goods must be checked when loading; the refrigeration unit is used to maintain the temperature of the goods, not to reduce the temperature of the goods.

5. Even if the unit capacity exceeds what is actually needed, insufficient air circulation will be the main cause of spoilage; any blockage around the cargo can cause "hot spots". A qualified refrigerated truck must ensure good ventilation on the six sides of the compartment and no blockage on the six sides of the goods; good air circulation can ensure that the goods are transported under appropriate temperature requirements. The cold (hot) gas blown out by the refrigerating unit isolates the cold (heat) source entering the compartment from the outside, thereby protecting the goods.

6. The goods must be stacked on double-sided pallets; plastic film cannot be wrapped on fresh-keeping pallets, as the plastic film will block the circulation of cold air to the goods; the floor under the goods must not be blocked. Generally, the floors of refrigerated trucks use ventilated aluminum rail floors; however, there are also some refrigerated trucks that do not have aluminum rails and use flat non-slip floors. Usually used as a third-party transport company or an enterprise transport vehicle for dairy products, the flat non-slip floor is used for the purpose of being suitable for the transportation of various products, or for easy cleaning of the ground. However, care must be taken when loading, and double-sided pallets must be used for loading to ensure the circulation of cold air on the ground. It is strictly forbidden to stack goods directly on the flat floor.
7. Do not stack goods in front of the evaporator outlet, otherwise it will block the cold air flow; blockage above the goods will cause a short circuit of the cold air flow. Maintain a minimum distance of 225 mm between the top of the cargo and the roof of the truck. When loading, do not stack the goods too high, and ensure that the loading height is not higher than the plane height of the air outlet. If the front of the air outlet is blocked by the goods or is too close to the goods, it will not only affect the storage and transportation temperature of the goods, but also affect the normal operation of the refrigeration unit. Because the air outlet is blocked by the goods, the cold air (or hot air) cannot circulate normally in the compartment, thus causing the local temperature of the goods to rise.

8. The interior of the carriage must be kept clean; there should be no wrapping paper and paper dust on the ground; the debris will block the air flow or be sucked by the evaporator. Handle properly; turn off the freezer when the doors are open; keep the doors open as little as possible; use strip curtains whenever possible when loading and unloading. Use dividers to separate dry goods (empty crates) from perishable items.