Recently, many businesses have made fresh electricity supplier, delivery to the door. Fresh products, fruits, vegetables, fish, meat preservation needs, transportation problem is derived from the freezer preservation for many. The following is to introduce three kinds of freezer knowledge. Has good heat insulation refrigerated containers (refrigerated container), airtight, and can maintain a certain requirement of low temperature, suitable for transport of perishable food, stored in special containers. Designed to transport requirements to maintain the temperature of frozen goods or goods of low temperature and the design of the container. It is divided into a built-in mechanical refrigerated container with a freezer and refrigerator without external mechanical refrigerated containers. For meat, fruits and other goods loading. Refrigerated container, high cost, high operating costs, should pay attention to the required technical condition of the goods inside freezer temperature in use. Refrigerated container (reefer container) is divided into external and internal two. The temperature can be adjusted between -60 ~ +30 DEG C. The built-in container in the transportation process can be free to start a freezer container to maintain the specified temperature; and external must rely on special container trucks, boats and special yard station equipped with refrigerator refrigeration. This box is suitable for transportation in summer butter, chocolate, frozen fish, milk, margarine and other items.

     Insulation (insulated container) container includes box body is composed of a top plate, a side plate, and the bottom plate, of which the base set and transport chassis with gooseneck groove, and the side plate is provided with a place for resting rack rail, the box body has double-layer structure, includes is arranged on the inner side of the box body inner layer and is arranged on the outer layer of the outer side of the box body, between the double-layer structure is a filler, the outer layer of width W is 2595.3mm to 2600.3mm, the height h of the outer layer is to 2908.3mm 2903.3mm. The utility model by improving box outer width and height, reduce the height of the gooseneck tunnel, and through sink into the type of orbit design and plug-in unit, tank design, and expanding the internal volume to meet the insulation box of heat leakage value requirements; and the inner layer of planks and outer steel plate structure, while maintaining the box has the advantages of light weight and increased the intensity of the FCL, in line with the quality requirements of the container.

     (1) the general Tibetan refrigerated container in front of the box is provided with inner cooling device. In the refrigerator, cold wind from the rear end of the tank vent tube blowing through the ventilation box on the wall of the convex strips of voids and the bottom rail, the front end wall of the air inlet and return to the freezer for loop. In order to improve the cooling effect, the freezing box wall, container top and bottom inside are covered with insulating material. The working temperature of the freezing container is between ~+26 and -28, according to the need of the goods, the temperature in the container can be automatically adjusted.

     (2) thermal insulation container is mainly used for loading the fresh fruits and vegetables. General use dry ice as refrigerant prevent an excessive rise in temperature in the box, usually the holding time is about 72 hours. The box around the upper and lower structure has sufficient thermal protection.

Frozen cabinet need to understand the terms:

PRETESTING INSPECT PTI: (pre cooling)

CARGO WORTHY INSPECTION CWI: (adaptive test)