In the category of fresh cold chain, the definition of "cold chain" and "refrigerated" is often confusing.
What is the difference between a cold chain car and a refrigerator car? Is it the same kind of transportation? In fact, there are some differences between the two.
If the owner of the cold chain is in the whole process of transportation, whether it is loading, unloading and handling, changing the mode of transportation, changing the packaging equipment and other links, the goods will always maintain a certain temperature transportation.
Refrigerated vehicle refers to the enclosed van transport vehicle used to transport frozen or fresh goods. It is a special refrigerated transport vehicle equipped with refrigerating units and polyurethane heat insulation compartments. It can be classified according to the manufacturer, chassis bearing capacity and carriage type.
From the definition, there is no doubt that the cold chain car to maintain a certain temperature, and the refrigerator car to use the refrigeration unit for freezing and preservation.
Refrigerated transport this link is the most familiar to us, including the refrigerated transport of food, long-distance transport and short-distance distribution and other logistics links.
Refrigeration mainly involves railway refrigerated vehicles, automobile refrigerated vehicles, refrigerated ships, refrigerated containers and other means of transportation, among which the automobile is the main refrigerated transportation force in China.
In the process of refrigerated transportation, temperature fluctuation is one of the main reasons for the decline of food quality. Therefore, the means of transportation should have good performance and maintain a stable temperature while maintaining a prescribed low temperature. Long-distance transportation is especially important.
Frozen sales are the most frequently contacted links in daily life. Frozen sales include the frozen storage and sales of all kinds of cold chain food into the wholesale and retail links, which are jointly completed by manufacturers, wholesalers and retailers.
With the rapid development of all kinds of chain supermarkets in cities, various chain supermarkets are becoming the main sales channels of cold chain food. In these retail terminals, a large number of refrigerated/frozen display cases and storage warehouses are used, thus gradually becoming an indispensable and important part of the complete food cold chain.
For the whole cold chain logistics, special car industry people are most concerned about the cold chain transport this link. At present, China's refrigerated transport is mainly based on automobile transport.
According to the processing degree of food, cold chain transportation can be divided into primary agricultural products and processed food. Primary agricultural products include vegetables, fruits, meat, poultry, eggs, milk, aquatic products, flower products;
Processed foods include frozen foods, packaged cooked foods such as poultry, meat and aquatic products, ice cream and dairy products, and fast food ingredients.
Different foods require different temperatures to keep them fresh, so different types of vehicles need to be transported.
According to the temperature required for food transportation, cold chain transportation can be subdivided into three categories, which are: fresh, chilled and frozen.
Fresh goods include vegetables, flowers, fruits, fresh vaccines and fresh aquatic products. The transportation temperature should be around 2-8 ℃.
Chilled goods mainly include sour meat products, jiang seafood products, soy products, vaccine products, chocolate, etc. The transportation temperature is required to be between 0 ° c and -5 ° c.
Frozen goods include quick-frozen food, quick-frozen seafood, frozen meat, frozen meat products, etc. The transportation temperature requirement is between -10 ° c and -18 ° c.
