The fuel gas in atmospheric-pressure furnaces has a high methane content, causing the burners to go out easily
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In the fuel gas for atmospheric-pressure furnaces, the methane content used to be around 55% but is now 90%; no major changes have been made to other operating parameters. However, the burners have recently tended to go out easily. Is it necessary to adjust the operating conditions, and if so, how?
If the components of the fuel gas vary greatly, does that mean the burner can no longer be used?
It is recommended to observe the color of the flame; you can try increasing the air volume – I think it’s likely a matter of the proportions
How large is the opening of the burner? Is it too small, resulting in too low pressure of the fuel gas?
The ratio of combustion air to fuel gas is not appropriate. Readjust the amount of combustion air.
The current situation is that when the air valve is set to a low value, it’s difficult for the burner to ignite; whereas if the air valve is set to a higher value, the burner gets blown out.
Check whether the flame is burning weakly; if so, increase the amount of combustion air by raising the pressure of the fuel gas.