H-Type Finned Tubes Manufacturer and Supplier in China
H-Type Finned Tubes: Manufacturing Process, Specifications, Materials, and Applications
H-Type Finned Tubes Introduction
H type finned tubes are a groundbreaking innovation in heat exchange technology, widely adopted across industries for their superior thermal efficiency, durability, and adaptability to harsh environments. This article delves into the manufacturing process, specifications, materials, and real-world applications of H-type finned tubes, offering insights into their role in optimizing industrial operations.
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Manufacturing Process of H Type Finned Tubes
The production of H-type finned tubes involves advanced welding techniques to ensure structural integrity and performance:
High-Frequency Resistance Welding (HFRW):
Two steel strips with central arcs are symmetrically welded to a bare tube, forming an “H” shape. This method ensures high fusion rates (over 98%) and minimal thermal resistance.
Ideal for high-volume production due to its speed and consistency.
Flash Resistance Welding:
Used for specialized designs like “double H-type” tubes, where dual tubes are welded side-by-side for enhanced rigidity.
Delivers robust joints with high tensile strength, suitable for long tube rows in large boilers or heat exchangers.
Both processes prioritize precision to maintain tight contact between fins and the base tube, maximizing heat transfer efficiency.
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Whatsapp:+86 15690122018
Key Specifications of H-Type Finned Tubes
H-type finned tubes are customizable to meet diverse industrial requirements:
Common Specifications of H Finned Tube
| General Descriptions of H-fins | Popular Specifications we make |
| Tube OD(mm) | 25mm to 73mm |
| Tube Wall thickness(mm) | 2.5mm Min. |
| Tube length(mm) | 18000mm Max. |
| Fin thickness(mm) | 1.5mm to 3.5mm |
| Fin pitch(mm) | 10mm Min. |
H Type Finned Tubes Base Tube Dimensions:
Outer Diameter: 25–76 mm (common sizes: 32 mm, 38 mm, 51 mm).
Thickness: 3–8 mm, depending on pressure and temperature demands.
H Type Finned Tubes Fin Specifications:
Height: 10–25 mm (typically 1.5–2 times the tube diameter).
Thickness: 1.5–3 mm.
Spacing: 5–15 mm between fins to balance heat exchange and airflow resistance.
Length: Up to 12 meters for seamless integration into large systems.
Arrangement: Parallel “gas corridors” reduce ash accumulation and pressure drop.
Common Materials Used
Material selection ensures durability in extreme conditions:
Carbon Steel (ND Steel/Corten Steel):
Resists high-temperature corrosion (up to 450°C) and sulfur-rich environments.
Cost-effective for power plant boilers and flue gas systems.
Stainless Steel (304/316L):
Ideal for acidic, alkaline, or marine environments (e.g., chemical plants, ships).
Alloy Steels (SA213 T11/T22):
Withstand ultra-high temperatures (600°C+) in superheaters and reformers.
Composite Tubes:
Clad with anti-wear coatings (e.g., thermal-sprayed ceramics) for abrasive gas flows.
Contact Us:datangfintube@gmail.com
Whatsapp:+86 15690122018
Applications of H-Type Finned Tubes
H-type finned tubes excel in scenarios requiring efficient heat transfer under challenging conditions:
H Type Finned Tubes for Power Generation
Boiler Economizers/Heat Recovery Systems: Enhance energy efficiency by extracting waste heat from exhaust gases.
Air Preheaters: Reduce fuel consumption in coal-fired and biomass power plants.
H Type Finned Tubes for Industrial Heating
Chemical Reactors: Accelerate heat exchange in processes like catalytic cracking.
Metallurgical Furnaces: Recover waste heat from smelting or forging operations.
H Type Finned Tubes for Environmental Protection
Flue Gas Treatment: Handle high-dust environments in cement kilns or incinerators.
Desulfurization Systems: Optimize heat recovery in scrubbers.
Marine & Offshore
Exhaust Gas Boilers: Compact design saves space while resisting saltwater corrosion.
Why Choose H Type Finned Tubes?
30–50% Higher Heat Transfer Efficiency compared to spiral finned tubes.
50% Lower Ash Accumulation due to self-cleaning “gas corridor” design.
Extended Service Life (>10 years) with minimal maintenance.
Conclusion
H type finned tubes are a cornerstone of modern thermal management, combining advanced manufacturing, versatile specifications, and robust materials to address complex industrial challenges. Whether optimizing energy systems, reducing emissions, or enhancing process efficiency, these tubes deliver unmatched performance and cost savings.
Keywords: H-type finned tubes, heat exchanger, boiler economizer, thermal efficiency, high-temperature resistance, manufacturing process.