High-frequency welding spiral fin tube designed specifically for circulating fluidized bed (CFB) boilers in power plant applications. This compact structure heat exchanger economizer features advanced engineering for maximum performance and efficiency.

The H-type finned tube economizer features two steel circular symmetry tubes welded together to form fins resembling the letter "H". This patented design has been recognized as high-tech product with utility model and design patents.

• Utility boilers and industrial boilers
• Marine power systems
• Heat exchanger components for CFB boilers
• Power station retrofit and replacement units

• Reduces thermal shock and water temperature fluctuations
• Optimized for nitrogen oxides and sulfur dioxide emission compliance
• Enhanced gas-side heat transfer coefficient through finned surface area
• Maximum allowable flue gas velocity for improved heat transfer
• Bespoke fin shapes available for individual applications

• Impact test and strength calculation reports with material information
• 100% non-destructive inspection of steel plate, tube, and electrode
• X-ray, γ-ray, and liquid penetrant test inspection for welding seams
• Hydraulic test reports ensuring standard working pressure and safety
• Compliance with European and American standards

With over 30 years of experience, Hua Dong Boiler consistently innovates and improves boiler superheaters and reheaters. Advanced bending, welding, and design techniques ensure reliable performance and compliance with international standards.