Project Description
- Product Name: L-foot Tension Fin Tubes for Heat Exchanger
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L-Foot Tension Fin Tubes: An Advanced Heat Transfer Solution
1. What is an L-Foot Tension Fin Tube?
An L-foot tension fin tube is a specialized type of finned tube designed for enhanced heat transfer efficiency. Unlike standard tension-wound fin tubes, this variant features an “L”-shaped foot at the base of each fin, which ensures superior mechanical bonding and thermal conductivity. The L-foot design provides:
- Stronger mechanical grip on the base tube, preventing fin loosening under thermal cycling.
- Improved heat conduction due to increased contact area between the fin and tube.
- Better corrosion resistance, as the L-foot minimizes gaps where moisture or corrosive agents could accumulate.
Common materials include aluminum fins on carbon steel, stainless steel, or copper tubes, making them suitable for high-temperature and corrosive environments.
| No. | Parameter | Materials / Dimensions |
|---|---|---|
| 1 | Tube materials | Carbon steel, stainless steel, copper, or aluminum |
| 2 | Tube dimensions | Outer diameter: 12.7 mm (0.5 in) to 38.1 mm (1.5 in) Wall thickness: 0.8 mm (0.03 in) to 2.5 mm (0.1 in) |
| 3 | Fin materials | Aluminum or copper |
| 4 | Fin height | 6 mm (0.24 in) to 16 mm (0.63 in) |
| 5 | Fin thickness | 0.15 mm (0.006 in) to 0.25 mm (0.01 in) |
| 6 | Fin spacing | 1.5 mm (0.06 in) to 3.0 mm (0.12 in) |
| 7 | Fin pitch | 2.0 mm (0.08 in) to 5.0 mm (0.2 in) |
| 8 | Fin angle | 18 degrees to 26 degrees |
| 9 | Tension strip material | Carbon steel or stainless steel |
| 10 | Tension strip dimensions | Thickness: 0.6 mm (0.02 in) to 1.2 mm (0.05 in) Width: 6 mm (0.24 in) to 12 mm (0.47 in) |
2. L-foot Tension Fin Tubes Manufacturing Process
The production of L-foot tension fin tubes involves precision engineering:
- Base Tube Preparation: The tube (typically carbon steel or stainless steel) is cleaned and prepped.
- Fin Strip Formation: A metal strip (usually aluminum) is pre-formed into an L-shaped profile.
- High-Tension Winding: The L-foot fin is wound helically around the tube under controlled tension, ensuring a tight mechanical bond.
- Final Inspection: Each tube undergoes quality checks for fin adhesion, spacing, and thermal performance.
3. L-foot Tension Fin Tubes Key Advantages
- Enhanced Durability: The L-foot design resists vibration and thermal expansion stresses.
- Higher Heat Transfer Efficiency: The increased contact area improves thermal conductivity by 10–15% over standard tension-wound fins.
- Reduced Fouling: The smooth helical fin layout minimizes particulate buildup.
- Lower Maintenance Costs: Long service life with minimal cleaning requirements.
4. L-foot Tension Fin Tubes Applications
- Power Plants: Used in air-cooled condensers and heat recovery steam generators (HRSGs).
- Oil & Gas: Deployed in heat exchangers for refineries and offshore platforms.
- Chemical Processing: Ideal for corrosive fluid heating/cooling due to material versatility.
- HVAC & Refrigeration: Enhances efficiency in industrial chillers and condenser coils.
L-foot Tension Fin Tubes Conclusion
L-foot tension fin tubes represent a high-performance evolution of finned tube technology, offering superior thermal efficiency, durability, and corrosion resistance. Their unique design makes them indispensable in industries demanding reliable heat transfer under extreme conditions.
