Guide: After the fuel oil of the oil-fired steam boiler is atomized and sprayed into the inner tank through the burner, the flue gas enters the left and right lower flue pipes through the re-combustion chamber, forwards to the front flue box, folds into the upper flue pipe, and flows from front to back , Discharged into the atmosphere through the chimney. The boiler is equipped with openable front and rear smoke box doors, and there are inspection holes at the rear for easy maintenance. Users have a series of questions about oil-fired boilers, such as oil-fired steam boiler specifications, oil-fired burner operation methods, etc., I will find out with you.
After the fuel oil of the oil-fired steam boiler is atomized and sprayed into the inner tank through the burner, the flue gas enters the left and right lower flue pipes through the re-combustion chamber, forwards to the front flue box, folds into the upper flue pipe, and flows from front to back , Discharged into the atmosphere through the chimney. The boiler is equipped with openable front and rear smoke box doors, and there are inspection holes at the rear for easy maintenance. Users have a series of questions about oil-fired boilers, such as oil-fired steam boiler specifications, oil-fired burner operation methods, etc., I will find out with you.
1. Specifications of oil-fired steam boiler
Oil-fired steam boiler fuels include light diesel, heavy oil, and other environmentally friendly oils. The common specifications are 0.5t-20t, and the pressure ranges from 1.0Mpa, 1.25Mpa, and 1.6Mpa. Different fuel oils have different compositions. When using oil-fired boilers, you need to provide an oil quality analysis report, and configure a suitable burner according to the report.
2.Operation method of oil burning burner
Turn on the main power switch to power on;
Press the start switch, the burner motor starts, the ignition electrode generates electric spark, after about 7 seconds of pre-blowing time, the solenoid valve automatically opens the nozzle to spray oil mist, which is ignited by the electric spark to form a flame. At this time, the photoelectrode is delayed for another 15 seconds to stop ignition, and the burner enters normal operation;
If the ignition is unsuccessful, no flame is formed, or the photoelectric system fails to sense the brightness of the flame, after a safe time of about 25 seconds, the alarm system will act, cut off the burner and start the working program, and the failure and the red light will light up;
After the fault red light is on, it must be 3 minutes before you can press the recovery button to restart the burner;
The position of the air door should match the size of the nozzle. Generally, it has been adjusted before leaving the factory. However, there will be differences with the internal pressure of the furnace. The adjustment method is to adjust the air volume with the air adjustment tube after the burner sprays the flame. If the air volume is too small, it will produce black smoke. If the air volume is too large, the flame will be blown out. Generally, the flame is stable and no black smoke is appropriate;
3. Safety protection device for oil-fired steam boiler The boiler is equipped with a fully automatic alarm controller
With high and low water level audible and visual alarms: when the boiler water level is higher than the normal water level by more than 75mm and lower than the normal water level by more than 45mm, both sound and light alarms will be issued.
has a low water level interlock protection function, that is, when the boiler water level is below the normal water level 35mm, the burner will automatically stop running and be locked. Once there is water shortage, both the burner and the water pump are interlocked, and the operation can only be restarted after turning on and resetting with the key.
has the function of automatic water level control: when the boiler water level is lower than 17mm below the normal water level, the water pump will automatically start; when the water level rises to 42mm above the normal water level, the water pump will automatically stop. The start and stop of the water pump can also be manually controlled on the instrument panel.
With flameout protection function
If the oil-fired boiler continues to supply oil or gas after the furnace is turned off, a furnace explosion may occur. The burner of the oil-fired boiler is equipped with a flame detection device to detect the combustion situation in the furnace (including the ignition situation) at any time. When the ignition fails or the flame is extinguished in the middle of the combustion, the oil and gas solenoid valves are generally closed within 5s (ignition) or 10s (during operation), and an audible and visual alarm signal is issued. At this time, the blower continues to operate to purge the remaining combustible gas in the furnace. After 20∽ 30s purge, the blower and various auxiliary power supplies are automatically cut off, and the boiler stops running.
The above gives a brief introduction to "oil-fired steam boiler specifications, operation methods of oil-fired burners, and safety protection devices for oil-fired steam boilers". I hope it will be helpful to the daily operation of the boiler. Industrial boilers should be operated properly, and the boilers should be maintained regularly to ensure operating conditions.
