Common Fault Causes And Treatment Methods Of Low Nitrogen Burner

Common Fault Causes And Treatment Methods Of Low Nitrogen Burner
Low nitrogen burner is an important equipment installed on industrial oil fired boiler and gas fired boiler to control pollutant emission, but it is inevitable that many failures will occur in the process of use, so what are the causes? What are the solutions?
1. Burner motor does not rotate
Cause: no voltage, thermal relay, action fuse, damage, zero line, motor failure, control circuit, gas transmission, ball valve, shutdown, controller failure
Treatment method: connect the circuit, reset, replace, repair, replace, find the disconnection point, connect or disconnect the regulator or the controller, open the ball valve, and replace.
2. The motor of low nitrogen burner runs, but it fails when pre purging for about 10 seconds
Cause: The set value of the air pressure switch is incorrect. The air pressure switch fails. The air pressure switch pipe is blocked. The blower is polluted. The burner motor reverses
Treatment method: reset, replace, clean and clean the motor pole return
3. The burner motor runs, but a fault occurs when the pre purge is about 20 seconds:
Cause: The solenoid valve is not sealed: the solenoid valve is polluted and the solenoid valve is damaged
Treatment method: clean and replace
4. The low nitrogen burner motor is running, and the voltage has been applied to the input terminal of the transformer
Cause: The distance between ignition electrodes is too large. Ignition electrodes or circuit grounding. Ignition transformer fails
Treatment method: readjust and eliminate grounding, replace damaged electrode or cable
6. The motor operates normally and the ignition is normal, but it fails later
Cause: The solenoid valve is not opened: the solenoid valve coil is damaged, and the solenoid valve is not energized
Solution: replace the solenoid valve and check the circuit
7. The motor operates normally and the ignition is normal, but it stops later without fault display
Cause: gas filter is blocked
Handling method: turn on electromagnetic
The above are the common failure causes and treatment methods of low nitrogen burners. Low nitrogen burners are important equipment added to industrial oil fired boilers and gas fired boilers to control pollutant emissions. They ensure stable ignition and full combustion of fuel by regulating combustion air and combustion head, improve combustion efficiency and reduce nitrogen oxide content, so as to obtain combustion parameters to meet emission standards.