There are many auxiliary machines in the heating system of gas-fired boiler, and the burner is one of the most important devices. In the process of heating, the burner may be destroyed, which can be caused by the following reasons:

1. The causes of the burner failure of the gas boiler are related to many factors, such as the furnace temperature of the gas boiler is too high, exceeding the maximum allowable temperature limit, so that the high temperature flue gas of the furnace enhances the radiation heat transfer of the burner, and the wall temperature of the burner nozzle increases to cause damage.

2. The burner of the gas boiler may also be damaged due to the deviation of the flame base in the furnace, because the temperature distribution of the furnace and the burner nozzle is uneven, and the air velocity of the burner nozzle in the four corners of the boiler is also uneven, so that the flame base is skewed.

3. When adjusting the gas boiler, if the secondary air velocity is set too low, it can cause the gas to ignite at too close a distance, leading to the burner nozzle deforming or even being damaged due to excessive heat. Additionally, if the high and low load adjustments of the gas boiler are not timely, the upper secondary sealing nozzle will fail to cool properly, also causing damage to the burner.

In summary, the impact of a damaged burner on the entire gas boiler is significant. Therefore, users should strengthen control and adjustment of the boiler during regular use, including timely monitoring of changes in gas pressure and quality to ensure a reasonable ratio of gas to hot air; observing the ignition status of the gas and adjusting the size of the secondary air valve as needed... When changing operating conditions at high or low loads, it is essential to adjust the negative pressure combustion inside the furnace, fine-tune the ratio of gas to hot air, and ensure that the flame in the furnace remains centered while coordinating the opening degrees of each layer of gas.

In addition, the material of the burner in gas boilers can be appropriately improved. It is recommended to choose high-quality alloy steel and add wear-resistant and heat-resistant functions. For the swirl vanes, use high-temperature resistant stainless steel to prevent the burner nozzle from deforming or being damaged due to the falling of burnt swirl vanes. Furthermore, it is essential to strictly follow the drawings for adjusting the standards of the gas boiler burner to ensure that the flame burns in a circular pattern within the furnace, guaranteeing the stable operation of the gas boiler.