Do you know how to Maintain Low-Nitrogen Burners?
Do you know how to Maintain Low-Nitrogen Burners?
Low-nitrogen burners are burners that have low nitrogen emissions during the combustion process. They are designed to reduce nitrogen oxide emissions during fuel combustion. The principle of low-nitrogen burners is to have some fuel burn too rich and some fuel burn too lean but keep the overall airflow constant. Because both of these parts are burning off-stoichiometrically, NOx emissions are very low.
This type of combustion is also known as bias combustion or non-stoichiometric combustion. Residence time in the high-temperature zone of the flue gas is one of the main factors that affect NOx production. Improving the mixing of the fuel and air reduces the thickness of the flame surface. Keeping the flue gas in a high-temperature state on the flame surface for a short period of time can reduce the amount of NOx generated.
Low-nitrogen burners are designed based on this principle. The maintenance procedure for low-nitrogen burners includes the debugging of the low-nitrogen burner. A well-adjusted low-nitrogen burner will be able to operate more efficiently. A portable combustion analyzer can provide accurate information about the operating conditions of the low-nitrogen burner. Typical burner debugging methods include fuel analysis and a series of adjustments to enable the burner to operate well while maintaining combustion power.
The basic debugging of low-nitrogen burners can be completed in one day or less, and testing should be performed before conducting various tests. After completing the complete burner maintenance procedure, it is particularly important to debug the low-nitrogen burner.
The debugging of the burner should be carried out under normal conditions. Fuel samples should be taken from the fuel tank to accurately describe the operating conditions of the burner. Debugging of low-nitrogen burners is based on sampling information about the combustion flue gas. Any adjustment to the air or fuel will affect flue gas emissions. The flue gas composition can be studied and used as a basis for analyzing combustion efficiency.
A regular low-nitrogen burner maintenance program is necessary to avoid downtime and extend the life of the combustion system. This not only reduces downtime and maintenance costs but also improves combustion efficiency and saves fuel costs.