High-frequency welded finned tube

Finned Tube Overview
Finned tubes are designed to enhance heat exchange efficiency by adding fins to the surface of the heat exchange tubes, thereby increasing the external (or internal) surface area of the tubes to achieve higher heat exchange efficiency. Such tubes are used as heat exchange elements and are subjected to harsh operating conditions over a long period, such as in boiler heat exchangers where they are exposed to high temperatures, pressures, and corrosive atmospheres. This necessitates that finned tubes have high performance specifications.
1. Corrosion resistance
2. Abrasion Resistance
3. Low contact thermal resistance
4. High stability
5. Dust-Resistant Capacity

Finned Tube Classification
Finned tubes come in a variety of types and new varieties are continuously emerging. Finned tubes can generally be categorized into the following aspects based on their application scenarios:
Categorized by processing technology: 1. Seamless tube (sleeve tube); 2. Tension-wound finned tube; 3. Insert fin tube; 4. Integral rolled finned tube; 5. Cast finned tube; 6. Welded finned tube, which includes: high-frequency welded finned tube, submerged arc welded finned tube, etc.
1. Square, rectangular, and round finned tube; 2. Spiral finned tube; 3. Wavy finned tube; 4. Toothed finned tube; 5. Needle finned tube; 6. Vertical finned tube; 7. Solid plate finned tube (plate fin) etc.
Material Classification: 1. Copper, Al, Copper/Al finned tubes; 2. Carbon steel, Stainless steel, Carbon steel/Stainless steel finned tubes; 3. Cast iron (cast steel) finned tubes, etc.
By Application: Air conditioning finned tubes; Air-cooled finned tubes; Boilers: finned tubes for water walls, economizers, and air preheaters; Various kilns and industrial furnaces for waste heat recovery; Other special-purpose finned tubes, etc.

Finned tube advantages
1. High Efficiency and Energy-Saving: With a heat exchange coefficient of 3000~4500 kcal/m²·°C·h, it offers 3~5 times the thermal efficiency of shell-and-tube heat exchangers.
2. Compact Structure: Plate heat exchangers have closely packed plates, occupying less floor space and volume compared to other types of heat exchangers. A plate heat exchanger with the same heat transfer capacity as a shell-and-tube heat exchanger requires only 1/5 of the area.
3. Easy to clean and disassemble: The plate heat exchanger is clamped by bolts, making it convenient for disassembly and cleaning at any time. Additionally, due to the smooth surface and high turbulence, it is less prone to scaling.
4. Long Service Life: Plate heat exchangers are made from stainless steel or titanium alloy plates, resistant to various corrosive media. Gaskets are replaceable and can be easily assembled, disassembled, and inspected.
5. Versatile: Plate heat exchanger plates are individual components, allowing for customization of flow paths according to requirements, with various configurations; suitable for different process demands.
6. Leak-proof design with drainage channels in the seal groove of the plate heat exchanger; various media do not intermix, and in the event of leakage, the media always discharges outward.