Applications of Laser Welded Fin Tubes

Laser-welded fin tubes have achieved successful applications in multiple industrial sectors due to their high welding strength, excellent heat transfer performance, and wide applicability.

1. Energy and Power Sector

In thermal power plants, laser-welded fin tubes are used in key equipment such as boiler economizers and air preheaters.

For example, after adopting nickel-based alloy laser-welded fin tubes in a supercritical unit project, the flue gas heat transfer coefficient increased by 40%, while simultaneously solving the problem of cracking easily at 600℃ using traditional high-frequency welded fin tubes.

In the nuclear power sector, zirconium alloy laser-welded fin tubes are used in the waste heat removal system of the power plant. While ensuring heat transfer efficiency, this perfectly solves the pitting corrosion problem under seawater cooling conditions, extending the equipment maintenance cycle from 18 months to 5 月日.

304 Stainless Steel Laser-Welded Fin Tubes

2. Petrochemical Industry

In the atmospheric and vacuum distillation units of oil refining plants, laser-welded fin tubes demonstrate unique adaptability to high-sulfur crude oil.

In petrochemical upgrades, a bidirectional spiral finned design was adopted, reducing tube-side pressure drop by 28%. Simultaneously, a dense protective layer formed by laser welding controlled the sulfur corrosion rate to below 0.05 mm/a.

In ethylene cracking furnaces, laser-welded spiral finned tubes increased flue gas waste heat recovery efficiency from 72% to 89%, saving approximately 1200 tons of fuel gas per furnace annually.

Laser Spiral Fin Tube Welding Machine Manufacturer and Supplier from Datang

3. Environmental Engineering

In the sintering flue gas desulfurization system of the steel industry, laser-welded finned tubes solved the technical bottleneck of traditional enamel tubes being prone to detachment.

Using a composite structure of 316L stainless steel base tubes and titanium alloy fins, stable heat transfer performance is maintained even in highly acidic environments. Combined with anti-ash accumulation coating technology, system energy consumption is reduced by 22%.

In waste-to-energy incineration flue gas waste heat recovery, the Shanghai Laogang Renewable Energy Utilization Center adopted gradient material laser-welded finned tubes, increasing the power generation per ton of waste to 580 kWh.

Laser welded Fin Tube Coils Manufacturer and Supplier, Factory

4. HVAC and Transportation

In the HVAC field, laser-welded finned tubes are used in equipment such as air preheaters and radiators, effectively improving system energy efficiency.

Laser-welded finned tubes also play an important role in heating furnaces and coolers in the petroleum industry, as well as in the paper, food, and electronics industries.

Application cases of laser-welded finned tubes fully demonstrate their significant advantages in improving heat exchange efficiency, reducing energy consumption, and extending equipment life.