II. Core Technical Principles and Regenerator Characteristics
(1) Technical Logic: Three-Cycle Energy Closed-Loop
RTO Regenerators achieves efficient treatment through the closed-loop process of “waste gas preheating – high-temperature oxidation – heat recovery”. With regenerators serving as the core carrier of energy circulation:
- Heat Storage Phase: High-temperature gas (above 800℃) after purification flows through the regenerator, transferring heat to the ceramic medium. And raising the regenerator temperature to 750-800℃;
- Heat Release Phase: Normal-temperature waste gas enters the regenerator chamber, exchanging heat with the high-temperature regenerator to reach above 700℃
- Cycle Switching: Alternate air flow direction through switching valves (60-180 seconds/cycle) to realize heat storage-heat release circulation, achieving heat recovery efficiency above 95%.
(2) Key Performance Requirements for RTO Regenerators
| Performance Indicator | Standard Requirement | Core Function |
| Heat Recovery Rate | ≥95% | Reduce fuel consumption and enable energy-saving operation |
| High-Temperature Resistance | ≥1000℃ | Adapt to combustion chamber operating temperature of 800-850℃ |
| Thermal Shock Resistance | No cracking under 200℃ temperature difference | Withstand temperature impact during switching processes |
| Corrosion Resistance | Tolerant to benzene series, sulfides, etc. | Adapt to complex waste gases in chemical, pharmaceutical and other industries |
| Porosity | 30%-40% | Ensure smooth air flow and reduce system pressure drop (≤3000Pa) |
| Mechanical Strength | Compressive strength ≥15MPa | Prevent collapse and pulverization caused by air flow impact |
