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Elliptical finned tube is also called elliptical high-frequency welded fin tube.Elliptical finned tube is a highly efficient heat exchange element, which consists of a base tube, an elliptical tube and an outer fin. Its structural feature is that the elliptical seamless steel tube is mechanically connected with the rectangular fin to form a tightly combined heat exchanger.
Elliptical finned tube manufacturing process
The manufacturing process of the elliptical finned tube includes prefabricating oblique folded holes on the fins to reserve interference material, and then retracting them to make the tube and the sheet fit tightly to achieve a gapless combination. This process does not require welding, bonding or filling other substances, and can be completed under normal temperature conditions, thereby improving the heat dissipation efficiency.
Elliptical finned tube application field
Elliptical finned tube is widely used in air conditioning, cooling, dehumidification, heating and other projects, and is an ideal supporting product for fresh air units and air handling units. It can also be connected to the air duct and used alone as a cooling or heating device, which is particularly suitable for industrial heating and occasions requiring efficient heat exchange.
Features of elliptical finned tubes
Elliptical finned tubes adopt advanced mechanical tube expansion and bridge-type slit double-turned aluminum fin structure. Mechanical tube expansion makes the copper tube and aluminum fins in close contact, and the bridge-type slit can promote fluid turbulence, destroy the boundary layer, and improve the heat transfer coefficient. This structure makes the heat exchanger have the characteristics of good heat transfer performance, small air resistance, compact structure, and light weight.
One of the main features of elliptical finned tubes is its unique fin structure. The fins are elliptical, which can significantly increase the contact area with the fluid compared to traditional rectangular fins, thereby improving the heat exchange efficiency. This design enables elliptical finned tubes of the same size to achieve higher heat exchange effects.
Strong adaptability:
Elliptical finned tubes are suitable for various industrial and commercial applications, and can handle a variety of media and working conditions, including high temperature, high pressure, corrosive media, etc. The design of this finned tube enables it to perform well in different environments and is stable and reliable.
Save space:
Compared with other types of finned tubes, elliptical finned tubes can reduce the size and weight of the overall heat exchanger while ensuring the same heat exchange capacity due to their excellent heat exchange efficiency, saving installation space and cost.
Reduce pressure drop:
The design of elliptical finned tubes not only increases the heat exchange surface area, but also effectively reduces the flow resistance and pressure drop of the medium in the tube, improving the energy efficiency of the system. This is especially important for industrial applications that need to reduce energy consumption.
Strong corrosion resistance:
Finned tubes are usually made of high-strength, corrosion-resistant materials such as stainless steel and aluminum alloy, which can resist the erosion of various chemical media and environments, extend the service life of the finned tubes, and reduce maintenance costs.
Stable operation:
The design and manufacturing precision of elliptical finned tubes are high, and the assembly process is strictly controlled, which can ensure its stability and reliability in long-term operation and reduce failures and downtime during operation.
Working principle of elliptical finned tube:
The working principle of elliptical finned tube is based on the basic principles of heat conduction and convection heat transfer, and its main process is as follows:
Fin structure optimization:
The fin structure of elliptical finned tube is designed to be elliptical, which can achieve a larger surface area in the same volume. When the medium passes through the finned tube, the fin surface and the medium are effectively exchanged with heat. The design of the elliptical fin increases the contact area between the fin and the fluid, and improves the heat exchange efficiency.
Heat conduction and convection heat transfer:
Heat conduction refers to the transfer of heat to the fin surface through the fin material, and then to the medium by convection heat transfer. When the medium flows in the tube, it contacts the fin surface. The elliptical shape of the fin enables the medium to flow effectively along the fin surface when passing through the finned tube, increasing the heat transfer efficiency between the medium and the finned tube.
Optimize fluid dynamic characteristics:
The elliptical finned tube improves the flow dynamic characteristics of the medium in the tube by optimizing the fin shape and gap. This optimization helps to reduce the resistance and pressure drop of the medium flow, improve the energy efficiency of the overall system, and reduce the operating cost.
Adapt to different working conditions:
The design of the elliptical string fin tube takes into account the adaptability under different working conditions, and can cope with complex environments such as high temperature, high pressure, and corrosive media. This design makes the elliptical string fin tube widely used in the chemical, power, pharmaceutical and other industries, providing a reliable heat exchange solution for industrial production.
Due to its excellent heat exchange efficiency, space saving, strong adaptability, good corrosion resistance, and working principle based on heat conduction and convection heat transfer, the elliptical string fin tube has become an important heat exchanger element in modern industry and is widely used in various industrial production and manufacturing processes.
