The refrigeration unit editor will explain it in detail.

1、 Insulation performance. The insulation performance of a refrigerated insulated box is closely related to its structure. Therefore, when purchasing a refrigerated truck, it is necessary to check the thermal conductivity of the insulation material itself and whether the filling is compact. At present, a good insulation material is foamed PU.

Secondly, it depends on whether the internal insulation layer of the car panel is sealed. The car panels used in cold chain are injected and foamed as a whole. The internal insulation layer of the entire car panel is integrated into one.

The interlayer bonding method used by other refrigeration unit manufacturers is far from the same. Is there a metal thermal bridge. The fourth is to check whether the board connection is tight and seamless. Check the sealing performance of the door.

Good insulation and thermal performance means that the refrigerator has a long insulation time and a short working time to reach the same temperature inside the cabin, which correspondingly reduces fuel consumption and plays a role in energy conservation and emission reduction.

2、 Lightweight and structurally sturdy. The weight of a car consumes more fuel during transportation; On the contrary, cars are lighter and consume less fuel during transportation. The refrigerated incubator of the cold chain car uses foam polyurethane as the thermal insulation layer.

The inner and outer surfaces of the car are made of fiberglass sheets. The outer edge of the car body is also made of lightweight aluminum. It has reduced its weight by about 20% and has higher structural strength. Taking a standard 12 cubic meter car as an example, it can save 1-1.5 million yuan in operating costs annually.

3、 Corrosion resistant, good refrigerated and insulated car skins should be made of fiberglass. Some refrigerated trucks use painted steel for both the interior and exterior. Tests have shown that the anti-corrosion ability of fiberglass is 3-5 times that of ordinary metal materials, and it is easy to repair.

Therefore, the service life of refrigerated insulated boxes will be greatly extended, and the service life of good insulated boxes will reach 15 or even 20 years. However, if the structure of the body insulation panel is not reasonable, such as using sandwich bonding method, it will take a long time, the adhesive will age, and the body insulation layer is easily peeled off from the inner and outer skin. The microorganisms in the car body will reduce the food quality and security, while the water absorption of the foam insulation layer will also reduce the heat insulation performance of the car body.