At present, with the development of the economy and society, the pace of people's life is accelerating, and frozen and chilled food is gradually becoming the choice of citizens for three meals a day. What transport equipment does the different refrigerated transport methods have? Today, I will give you a detailed explanation of the transportation methods and equipment in China.
First, the land transport
(a), truck
Here, a truck generally refers to an integrated truck whose cooling cabinet is fixed to the chassis. It can also be a multi-purpose van with the rear of the compartment separated from the cab and subjected to a heat treatment to maintain the temperature of the cargo. Truck refrigeration systems are divided into two broad categories: non-independent (vehicle driven) and stand-alone (self-driven). The engine of the truck is driven non-independently to drive the compressor of the refrigeration unit or to drive the generator, and then the compressor of the refrigeration unit is driven by the generator. The stand-alone unit has its own engine, usually a diesel engine, to drive the refrigeration system independently without the engine power of the vehicle.
(two), trailer
The refrigerated trailer towed by the tractor is another means of transportation. Similar to a stand-alone unit mounted on a truck, the trailer unit mounted on the trailer car is larger in size and is suitable for trailer bodies that require greater cooling capacity. The refrigerating unit of the trailer is installed at the front end of the tank, and the conditioned air is sent to the various parts of the compartment through the wind trough at the top of the trailer compartment, and the final return to the refrigeration unit under the pressure difference.
(3) Railway refrigerated containers
Trailers and standard reefer containers can be used for rail refrigerated transport, a special trailer designed to match the train chassis, or transported by rail, and then used a standard road tractor to drag the trailer to the end. At the destination, these trailers use the same refrigeration unit as road applications, often with air suspension systems.
(4) Railway refrigerated compartment
Railway refrigerated train cars generally use an integrated self-contained power refrigeration unit. The air supply system is similar to the air supply system of the trailer. The refrigeration system delivers cool air to the top of the car, and the cold air flows through the cargo and returns from the bottom of the car. Similar to containers, as long as the stacking of goods is reasonable and meets the airflow layout requirements, it can generally be transported over long distances. Usually used to transport non-corrosive goods such as citrus, onions and carrots. General cars require good air tightness to meet the requirements of the atmosphere. The railway transportation mode has the characteristics of large capacity. Generally, the zui can transport 113 cubic meters and 45 tons of cargo.
Second, water transport
There are two main types of refrigerated transport on the water, one is a temperature-controlled container and the other is a refrigerated ship.
(1), reefer container
Refrigerated containers rely on electric power to drive compressors whose power is provided by onboard generators or portable generators. When the container arrives at the dock, it is transported to the chassis. These chassis are usually equipped with generator sets, the generator sets mentioned above. In this way, the refrigerated container mounted on the chassis can be pulled by the tractor like a trailer and transported on land.
(2) Refrigerated ship
The cargo hold of a refrigerated ship is a refrigerated compartment, often divided into several compartments. Each compartment is a separate enclosed loading space. The bulkhead and the hatch are airtight and covered with insulating materials such as foam plastic and aluminum plate polymer , so that adjacent compartments do not conduct heat to each other to meet different temperature requirements of different goods. The height between the upper and lower decks of the refrigerated compartment or between the deck and the bilge is smaller than that of other cargo ships to prevent the cargo from accumulating too high and crushing the underlying cargo. There are refrigeration units on the refrigerated ship, including refrigeration units and various lines. The refrigeration unit generally consists of a refrigeration compressor, a drive motor and a condenser.
Third, air transport
Although the cost control effect is not satisfactory, the transportation company chooses air refrigerated transportation as a fast means of transportation. It is usually used to transport perishable goods with high added value and long distance transportation or export, such as fresh cut flowers. And some tropical fruits.
The above three are the transportation methods that we usually use and the equipment they use when transporting. I think you choose the lot of land is the land transport. If it is a small series, I will also choose the land transport because the cost of air transportation is too high.
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