90Nm³/h 93% Purity VPSA Oxygen Generator for Industrial Boiler Combustion
Industrial boilers, as core energy supply equipment in manufacturing, power generation, and heating industries, face urgent demands for efficiency improvement and emission reduction. Oxygen-enriched combustion—boosting boiler thermal efficiency by increasing oxygen concentration in combustion air—relies heavily on stable, cost-effective oxygen supply. The VPSA oxygen generator (Vacuum Pressure Swing Adsorption Oxygen Generator), a high-performance industrial oxygen generator, operates on pressure swing adsorption for oxygen production technology. It uses high-efficiency molecular sieves to physically separate oxygen from ambient air, delivering 93% pure oxygen with no chemical additives. Compared with cryogenic oxygen production, it features fast start-up, flexible load adjustment, and low energy consumption; compared with conventional PSA oxygen generator, it offers larger output and better adaptability to continuous boiler operation. This 90Nm³/h model, customized for industrial boiler scenarios, cuts fuel consumption by 15%-20% and reduces NOₓ emissions by 30%, becoming a key equipment for green boiler transformation.
Core Parameters
| Model No. |
Flow Rate (Nm³/h) |
Purity |
| VPSA-5 | 5 | 93±2% |
| VPSA-10 | 10 | 93±2% |
| VPSA-20 | 20 | 93±2% |
| VPSA-30 | 30 | 93±2% |
| VPSA-40 | 40 | 93±2% |
| VPSA-50 | 50 | 93±2% |
| VPSA-60 | 60 | 93±2% |
| VPSA-70 | 70 | 93±2% |
| VPSA-80 | 80 | 93±2% |
| VPSA-100 | 100 | 93±2% |
| VPSA-120 | 120 | 93±2% |
| VPSA-150 | 150 | 93±2% |
| VPSA-180 | 180 | 93±2% |
| VPSA-200 | 200 | 93±2% |
Why VPSA Oxygen Generator is the First Choice for Boiler Oxygen-Enriched Combustion
Boiler oxygen-enriched combustion has strict requirements for oxygen supply: large continuous output, stable purity, and low energy consumption—all fulfilled by VPSA oxygen generators:
- Efficiency boost vs. air combustion: Traditional air combustion uses 21% oxygen, with nitrogen absorbing 70% of heat and increasing flue gas emissions. 93% pure oxygen reduces nitrogen content in combustion air, raising boiler thermal efficiency by 8%-12% (e.g., a 10t/h gas-fired boiler saves 150m³ of natural gas daily).
- Stability vs. liquid oxygen: Liquid oxygen requires large storage tanks and has high transportation costs; its supply is easily affected by weather and logistics. The VPSA generator produces oxygen 24/7, with a 2Nm³ buffer tank ensuring stable supply during boiler load fluctuations.
- Cost vs. PSA oxygen generator: PSA oxygen generator (pressure swing adsorption) has higher energy consumption (≥0.85kWh/Nm³ O₂) and smaller output (≤50Nm³/h), making it unsuitable for 10t/h+ boilers. The VPSA model's vacuum regeneration technology cuts energy use by 30%, matching large boiler demands.
PSA Oxygen Plant Working Principle vs. VPSA: Technical Advantages in Boiler Scenarios
Both VPSA oxygen generator and PSA oxygen generator belong to pressure swing adsorption oxygen plant technology, but their regeneration methods create distinct boiler adaptability:
- PSA working principle: Relies on atmospheric pressure regeneration—adsorbs nitrogen at high pressure (0.7-0.9MPa) and desorbs at atmospheric pressure. It has a simple structure but requires high compression energy, leading to higher power consumption. Suitable for small boilers (≤5t/h) with low oxygen demand.
- VPSA working principle: Uses vacuum regeneration—adsorbs at low pressure (0.3-0.5MPa) and desorbs at negative pressure (-0.08MPa). The optimized regeneration process reduces compression energy use, lowering unit energy consumption to ≤0.61kWh/Nm³ O₂. Its dual-tower alternating design ensures continuous output, critical for 24/7 boiler operation.
- Boiler-specific optimization: The VPSA generator adds a flue gas heat recovery module, using waste heat from boiler flue gas to preheat intake air, further reducing energy consumption by 5%-8%.
Policy Compliance: VPSA Oxygen Generators Promote Green Boiler Transformation
National environmental protection policies (e.g., "Dual Carbon" goals, boiler emission standards) make VPSA oxygen generators a policy-compliant choice:
- Emission reduction: 93% purity oxygen reduces boiler flue gas volume by 30%, cutting NOₓ emissions by 30% and CO by 40%—helping enterprises meet strict emission limits (GB 13271-2014).
- Energy-saving subsidies: Many regions offer 10%-15% equipment subsidies for enterprises adopting energy-saving oxygen-enriched combustion technology, reducing initial investment burdens.
- Carbon credits: Reduced fuel consumption lowers carbon emissions, allowing enterprises to trade carbon credits and gain additional revenue.
Conclusion
The 90Nm³/h 93% purity VPSA oxygen generator has become a core equipment for industrial boiler green transformation, leveraging advanced pressure swing adsorption oxygen plant technology to balance efficiency, cost, and emission reduction. Compared with PSA oxygen generator and traditional oxygen supply methods, it delivers larger output, lower energy consumption, and more stable performance—perfectly matching the continuous, large-scale oxygen demand of industrial boilers. Its ability to cut fuel costs by 15%-20% and reduce NOₓ emissions by 30% not only improves enterprise profitability but also helps comply with environmental policies. For enterprises operating 10t/h+ industrial boilers, investing in this VPSA oxygen generator is a cost-effective, future-oriented decision that supports sustainable development while enhancing core competitiveness. As boiler emission standards tighten, VPSA Oxygen System will play an increasingly critical role in the industrial energy-saving revolution.
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