In order to prevent unstable combustion when the self-preheating burner is running at high load, the following measures can be taken:

Ensure a high adjustment ratio for the burner:

Self-preheating burners should have a high adjustment ratio to adapt to load changes.

This can be achieved through the design and selection of suitable burners.

Preheat air or gas:

By preheating the air or gas, combustion efficiency and stability can be improved.

Self-preheating burners use a counter-flow heat exchanger to preheat the combustion air, thereby increasing the combustion temperature and efficiency.

Maintain an appropriate air coefficient:

To achieve complete combustion under low air coefficients, the ratio of air to gas must be precisely controlled to ensure stable and efficient combustion.

Using a steady flame disk structure:

This structure ensures stable combustion and prevents burner de-firing or flashback.

It helps maintain flame stability, especially during high-load operations.

Regular maintenance and inspection:

Regularly inspect and maintain the burner to ensure it operates normally.

This includes checking the gas supply lines, detection instruments, and pipeline valves to ensure their reliability and sealing.

Monitoring the combustion process:

Use thermal detection and control devices to monitor the combustion process in real-time, promptly identifying and addressing any instability issues.

This involves monitoring parameters such as flame, gas pressure, and electrical circuits to ensure safe and stable combustion.

Avoiding high-temperature peaks:

By mixing with flue gas to form a strong recirculation airflow, avoid high-temperature peaks, thereby reducing NOx emissions and maintaining combustion stability.

Operator training:

Operators should be proficient in the operation of the burner and strictly follow the operating procedures.

This helps prevent combustion instability caused by improper operation.

Through these measures, the issue of unstable combustion in self-preheating burners during high-load operations can be effectively prevented, ensuring the safety and efficiency of the combustion process.