High Pressure Coal-fired Boiler Economizer with Max. 20t/h Steam Production for Power Stations

Boiler economizers are high-efficiency heat exchange devices with finned tubes designed to heat liquids (typically water) up to, but not exceeding, their boiling point. We manufacture three types of boiler economizers:

• Bare tube economizer
• H-finned tube economizer
• Spiral finned tube economizer

The H-finned tube economizer is a highly efficient heat exchanger consisting of H-finned tubes. Compared to bare tube economizers, H-finned tube economizers offer:

• Increased heat exchange area
• Reduced number of tubes required
• Expanded flue gas flow area
• Lower flue gas flow speed and reduced abrasion

Our H-finned tubes can be manufactured as double H-finned tubes with high rigidity to accommodate long tube rows. The spiral finned economizer is our innovative design featuring spiral fin tubes that overcome common issues of serious abrasion and short service life.

• Impact test and Strength calculation report with applied materials information
• 100% NDT (non-destructive inspection) report of steel plate, tube and electrode
• X-ray, γ-ray and liquid penetrant test inspection report (welding seam) to ensure the quality of the entire boiler
• Hydraulic test report to ensure standard working pressure and safety