What are the structures and characteristics of natural gas burners?

What are the structures and characteristics of natural gas burners?
For diffusion combustion, the mixing process of natural gas and air is very important, because it can not only shorten the combustion time, but also greatly affect the stability and combustion performance.
The structural design of the burner requires that the natural gas burner and the air supply device must ensure the rapid and uniform mixing of natural gas and air. Generally, the following main design structures are used to achieve this.
1、 The natural gas is divided into multiple jets and mixed with swirling air through multi pipe porous.
2、 The natural gas is used to meet and mix with the air jet passing through the annular space of the pore area at different angles and speeds.
3、 The cyclone device is used to strengthen the mixing of natural gas and air.
Natural gas and air injection devices are used on various types of burners, which is based on the above mixed structure.
As for the structure of burner, it mainly depends on the structure and application requirements of natural gas heat conduction furnace, the supply conditions of natural gas and combustion supporting air and other factors.
In the structural design of natural gas burner, the total area of nozzle fire hole of diffusion type natural gas burner can be calculated by the fire hole diameter and the total number of fire holes.
If the fire hole diameter is too large, it is not easy to burn, and if the fire hole is too small, it is easy to block the combustion head, while the determination of the fire hole spacing can ensure the normal propagation of the flame without merging. Within a certain range of fire hole diameter, if the heat intensity of fire hole exceeds a certain range
It worsens the combustion condition of the burner, such as misfire, smoke, insufficient heat intensity, etc.