Self-preheating burner is widely used in industrial furnaces, but the optimization of its gas flow distribution has been the focus of technical improvement. We can learn some alternative methods to improve the gas flow distribution, so as to improve combustion efficiency and reduce the generation of nitrogen oxides.

Alternative methods to improve airflow distribution

Multi-point air intake design

By setting multiple air intake holes on the burner body, multi-point addition of combustion air can be realized. This method can make combustion air form multiple reflux areas inside the burner, so as to improve the distribution of gas flow and achieve more stable combustion.

Sawtooth shaped nozzle design

Multiple protruding teeth are arranged in a ring pattern on the inner wall of the burner outlet, creating a continuous and uneven internal toothed structure. This design allows the combustion air to form a zero-speed line within the burner's interior space, reducing the airflow speed and ensuring a stable ignition source.

Segmental combustion technology

By setting up multiple combustion heads inside the burner, segmental combustion is realized. This method can make the combustion process more uniform, so as to improve the distribution of gas flow and improve the combustion efficiency.

Heat exchanger optimization design

The design of the heat exchanger is optimized so that the combustion air can be preheated more uniformly through the heat exchanger. This method can improve the temperature of the combustion air, thus improving the gas flow distribution and improving the combustion efficiency.

Conclusion

Through the above alternative methods, the gas flow distribution of the self-preheating burner can be effectively improved, so as to improve the combustion efficiency and reduce the generation of nitrogen oxides. These methods have been verified in practical application and have high practical value.