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Serrated fin tube is a heat exchange element with serrated fins added to an ordinary base tube, mainly used to improve heat exchange efficiency. Its unique geometric design, such as closely connected serrated fins, significantly increases the surface area of the tube, thereby improving heat exchange efficiency.
Core structural features
Serrated fins: The fin edges are cut into continuous serrations (similar to a blade) rather than a smooth design.
Base tube material: Carbon steel, stainless steel or copper tubes are commonly used as heat medium channels.
Joining process:
High frequency welding: The fin root is metallurgically bonded to the base tube through high frequency current to ensure strength and thermal conductivity;
Mechanical winding: The fin is spirally wound around the base tube and pressed into a serrated shape
Features and advantages of serrated fin tubes
Efficient heat exchange: The serrated design increases the contact area between the fins and the fluid, promotes the transfer and absorption of heat, and makes the heat exchange process more efficient and rapid.
Strong durability: High-frequency welding technology ensures a firm connection between the fins and the base tube, improves the strength and durability of the overall structure, and reduces leakage problems caused by poor welding.
Self-cleaning effect: The serrated fins can disturb the flow of fluid when the fluid passes through, reduce dirt deposition, extend the service life of the fin tube, and reduce maintenance costs.
Wide range of application: Suitable for waste heat recovery and high-efficiency heat exchange systems in the petroleum, chemical, electric power, metallurgy and other industries, especially in harsh working conditions.
Application fields of serrated fin tubes
Serrated fin tubes are widely used in the field of modern industrial heat exchange, especially in the petroleum, chemical, electric power, metallurgy and other industries. Its high efficiency and stable performance make it play an important role in these fields and promote the green and efficient development of industrial production.
Core Performance Advantages of Serrated Fin Tubes
| Characteristic | Technical Mechanism | Industrial Value |
|---|---|---|
| Enhanced Heat Transfer | Serrated edges disrupt fluid boundary layers and amplify turbulence, increasing heat transfer efficiency by over 30% compared to smooth tubes | Reduces equipment footprint and lowers energy consumption |
| Anti-Fouling Capability | Serration gaps prevent dust accumulation, sustaining long-term heat exchange stability | Decreases shutdown frequency for cleaning |
| High Temp/Pressure Resistance | High-frequency welded structure withstands media temperatures ≤400°C and pressures ≤32MPa | Suitable for demanding applications (e.g., power plant boilers, petrochemical reactors) |
Key Features:
- Structural Superiority:
- Serrated fin geometry maximizes turbulence generation for efficient boundary layer disruption2.
- Material Resilience:
- Robust welded joints ensure integrity under extreme thermal-mechanical stress4.
- Operational Economy:
- Combined heat transfer enhancement and fouling resistance minimize operational downtime.
