Condensing Pressure Hot Water Boiler-i6

Fangkuai I6 Series Condensing Pressure Hot Water Boiler: Advanced Thermal Solutions for Process Industries​​

1. Combustion System Engineering

The I6’s full-premix radiant panel burner achieves 106% thermal efficiency (LHV basis) through stoichiometric combustion control within ±0.8% oxygen variance. Field tests at Unilever’s ice cream plant demonstrated consistent 102-104% efficiency across 2,500-18,000 kW load ranges, maintaining flue gas temperatures below 55°C even during peak production cycles.

2. Precision Emission Control

Equipped with staged air injection nozzles and FGR modulation, the system achieves NOx levels of 26-28 mg/Nm³ without SCR catalysts – 22% below EU BREF MTD guidelines. Continuous opacity monitoring ensures Ringelman 0.5 smoke density during fuel transitions, particularly crucial for biomass co-firing operations.

3. Corrosion-Resistant Heat Exchange

The patented wing-tube array (Patent CN 2021102345.7) combines silicon-aluminum diffusion bonding with 316L stainless steel end caps. Accelerated life testing shows <0.03mm/year corrosion rate in chloride-rich environments (≥500ppm), outperforming standard copper-nickel alloys by 8:1.

4. Compact Steam Plant Integration

By combining condensing modules with spiral-grooved economizers, the I6 achieves 60% footprint reduction versus conventional shell boilers. A recent pharmaceutical retrofit in Basel installed 3×25MW units vertically within 18m², replacing horizontal units requiring 47m² floor space.

5. Intelligent Process Adaptation

The Siemens S7-1500 PLC-driven system features:
• Automatic turndown to 15% capacity without flame instability
• Predictive scaling alerts via conductivity trend analysis
• Dual-fuel auto-switch within 90 seconds (gas/oil)
• ISO 50001-compliant energy tracking reports

6. Maintenance Engineering

Self-descaling water circuits reduce chemical cleaning frequency to 26-month intervals. The split-ring tube bundle design enables individual wing-tube replacement in 38 minutes (vs. 4.5 hours for traditional tube sheets), as validated during emergency repairs at a Guangdong paper mill.

7. Global Compliance Packages

Custom-configured versions available for:
• ASME Section IV + NB stamp (North America)
• EN 12953-6 with TA Luft certification (EU)
• GB 24500-2020 compliance with real-time carbon monitoring (China)
• TÜV SÜD-approved tropicalized package (Southeast Asia)

Performance Validation

Third-party verified results from TUV Rheinland:
• 89,216 hours MTBF (95% confidence interval)
• 98.7% availability over 5-year operational lifecycle
• 22-second cold start to full pressure (10 bar)
• 37% reduced lifecycle costs vs. conventional hot water boilers