Finned tube heat exchangers are generally composed of baffles, fins, seals, and drainage fins. Between two adjacent partitions, fins, drainage fins and their seals are placed to form a compartment, which is called a safe passage. The compartments are juxtaposed according to different methods of liquid, and the whole staff is welded to form a board. Bundles and plate bundles are the management center of fin-tube heat exchangers, together with necessary cylinders, receiving points, and supporting points to form fin-tube heat exchangers.
The basic principle of finned tube heat exchanger—the principle of finned tube heat exchanger
From the perspective of heat conduction, finned tube heat exchangers are still classified as shoulder-arm heat exchangers. The main feature of customized processing of stainless steel pipe is that it has an extended secondary heat conduction surface (fin), so the heat conduction process is not only carried out on the primary heat conduction surface (baffle plate), but also on the secondary heat conduction surface. In addition to the heat generated by the material on the high-temperature side, the surface is poured into the material on the ultra-low temperature side, and some heat is transferred along the height of the fin surface. That is, along the height of the fin, there is a partition to pour the heat into the material, and then this heat is transferred. The material that is widely spread to the ultra-low temperature side.
Because the height of the fin greatly exceeds the thickness of the fin, the heat transfer process along the height of the fin is similar to that of a uniform long thin pendulum rod. At this time, the heat transfer coefficient of the fin cannot be careless. The temperature on both sides of the fin is at most equal to the temperature of the partition, following the heat of the fin and the material, and the temperature continues to decrease until the temperature of the material in the middle of the fin. The manufacturing process of the heating plate of the food supplement machine is strict and the whole process is complicated. It is very easy to block, not resistant to corrosion, and difficult to clean and maintain, so it is only used for places where the heat transfer material is clean, corrosion-resistant, not easy to accumulate, not easy to accumulate, and not easy to block.
