Finned Tube Heat Exchanger Features

- Jun 11, 2018 -

As a widely used heat exchanger device, finned tube heat exchangers have shown superior performance in various applications. Finned tube heat exchangers are usually composed of partitions, fins, seals, and deflectors. A sandwich composed of fins, baffles, and seals is placed between two adjacent separators, and sandwiches are laminated according to the different ways of fluids, and brazed together to form the core of the heat exchanger—the plate bundle.


At the same time in the configuration to adapt to the head, take over, support and other components, constitute a finned tube heat exchanger. Its main feature is that it has an extended secondary heat transfer surface, so the heat transfer process is not only performed on the primary heat transfer surface, but also on the secondary heat transfer surface at the same time. Since the height of the fins greatly exceeds the thickness of the fins, the heat conduction along the height of the fins is similar to that of the homogeneous slender guide rods. At this point, the thermal resistance of the fins cannot be ignored.


So, for users, what are the differences in the use of such heat exchanger equipment? We know that there are many different kinds of heat exchange equipment on the market, and the reason why the fin-and-tube heat exchanger can be widely used is inseparable from its superior performance.


First of all, in practical applications, the heat transfer efficiency of the fin-tube heat exchanger is high. This is because the disturbance of the fluid by the fins continuously breaks the boundary layer and thus has a large heat transfer coefficient. In addition, the partition plate, the fins are thin, and the high thermal conductivity makes the finned tube heat exchanger highly efficient. Second, the overall structural design of the device is compact and reasonable, so a large specific surface area can be obtained.


In addition, the finned tube heat exchanger is not only compact in structure, but also used aluminum alloy as its material. Therefore, the quality of the finned tube heat exchanger is light, and transportation, handling and installation are relatively labor-saving. In addition, the fin and tube heat exchangers are adaptable and can be used in different workplaces. In addition, the equipment's manufacturing process requirements are very strict, so it can ensure that the equipment has good performance.