The refrigeration unit editor will talk about refrigerated trucks, which are mainly used for transporting fresh meat, vegetables, seafood, and so on. They use assembly technology, and the container body of the refrigerated truck adopts splicing technology. The refrigerated container plate adopts a plastic composite material plate composite structure.

The internal and external wall panels and high-quality glass fiber reinforced plastic or alloy anti rust aluminum plates, stainless steel plates, and the intermediate interlayer are polyurethane foam insulation materials, which are different from high-strength rubber plates, and aluminum profiles are riveted together. A low-temperature insulation sealing strip is installed between the box and the door. The door lock structure adopts box car stainless steel standard parts. The box board is seamless, has a bright appearance, is easy to clean, impact resistant, and corrosion-resistant.

The main reason for the spoilage and deterioration of aquatic products is that the products themselves contain or are contaminated by microorganisms during storage and transportation. Under appropriate conditions, they grow and reproduce, decompose fish proteins, amino acids, fats, and other components to produce odors and toxic substances, leading to spoilage and deterioration of aquatic products.

On the other hand, the enzymes contained in aquatic products themselves can promote the decay of fish under certain environmental conditions. In the process of refrigerated truck storage and transportation, to ensure the quality of aquatic products and achieve the purpose of preservation, these two factors need to be controlled.

The environmental temperature and humidity are closely related to the growth and reproduction of microorganisms. Water is essential for microbial life and a fundamental component of the human body. The more water in aquatic products, the easier it is for microorganisms to reproduce.

It is generally believed that microorganisms can only grow and reproduce when the moisture content exceeds 50%. When the moisture content is below 30%, microbial growth is inhibited. When the moisture content is below 12%, microorganisms find it difficult to reproduce.

Temperature is an important condition for the growth and reproduction of microorganisms. The suitable temperature for the growth of various microorganisms varies. If the temperature exceeds the appropriate range, growth or death will stop. The function of enzymes is also closely related to temperature.

At around 37 ℃, it has strong decomposition ability and fast chemical reaction rate. As the temperature increases, the enzyme's ability to decompose increases, and when the temperature exceeds a certain range, the enzyme begins to be destroyed. Therefore, by lowering the temperature, microorganisms stop reproducing or even die, and the ability of enzymes to decompose is weakened or lost, the freshness of aquatic products can be prolonged.