High-frequency Welded Spiral Finned Tubes

High-frequency welded spiral fin tube

Finned Tube Overview
Finned tubes, designed to enhance heat exchange efficiency, typically increase the surface area (either external or internal) of the heat exchange tubes by adding fins, thereby improving the heat exchange efficiency. Such heat exchange tubes, as heat exchange elements, operate under harsh conditions of high-temperature烟气 for extended periods, such as in boiler heat exchangers where the environment is severe with high temperature, pressure, and corrosive atmospheres. This necessitates that finned tubes possess high performance specifications.
1. Corrosion resistance
2. Abrasion resistance
3. Low contact thermal resistance
4. High stability
5. Dust-Resistant Ability

Finned tube classification
Finned tubes come in a variety of types and new varieties are continually emerging. Finned tubes can generally be categorized into several aspects of application:
Categorized by processing technology: 1. Strip Tube (Sleeve Tube); 2. Tension Wound Finned Tube; 3. Inserted 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.
Categorized by fin shape: 1. Square, rectangular, and circular finned tubes; 2. Spiral finned tubes; 3. Wavy finned tubes; 4. Toothed finned tubes; 5. Needle finned tubes; 6. Vertical finned tubes; 7. Solid plate finned tubes (plate fins) etc.
Categorized by material: 1. Copper, Aluminum, Copper/Aluminum finned tubes; 2. Carbon steel, Stainless steel, Carbon steel/Stainless steel finned tubes; 3. Cast iron (cast steel) finned tubes, etc.
Categorized by application: Air conditioning finned tubes; Air-cooled finned tubes; Boiler finned tubes for water walls, economizers, and air preheaters; Finned tubes for various kilns and industrial furnaces with waste heat recovery; and other special-purpose finned tubes.

Finned tube advantages
1. High Efficiency and Energy Saving: Its heat exchange coefficient ranges from 3000 to 4500 kcal/m²·°C·h, which is 3 to 5 times more efficient than shell-and-tube heat exchangers.
2. Compact Structure: Plate heat exchangers have tightly packed plates, occupying less floor space and overall space compared to other types of heat exchangers. A plate heat exchanger with the same heat transfer capacity as a shell-and-tube exchanger requires only 1/5 of the area.
3. Easy to Clean and Dismantle: The plate heat exchanger clamps the plate elements together with clamping bolts, making it convenient to dismantle and clean at any time. Additionally, due to the smooth surface and high turbulence, scaling is not likely to occur.
4. Long Service Life: Plate heat exchangers are made with stainless steel or titanium alloy plates, resistant to various corrosive mediums. Gaskets are replaceable and easy to install, disassemble, and inspect.
5. Versatile: Plate heat exchanger plates are independent components, allowing for adjustments in flow paths to meet specifications and come in various configurations; suitable for a wide range of different process requirements.
6. Non-leakage design: The plate heat exchanger features a sealed groove with a leakage channel, ensuring that various media do not intermix. In the event of a leak, the media always discharges outward.