The safe use of oil fired hot water boilers requires strict adherence to operating procedures, and the following are key precautions:
1、 Preparation before operation
1. Personnel Qualification and Protection
Operators must hold a special equipment operation certificate (G1/G2) and complete specialized training for fuel boilers. Cotton work clothes, heat-resistant gloves, and anti slip shoes must be worn, and synthetic clothing (anti-static sparks) is prohibited.
2. Equipment inspection
Fuel system: Check for no leakage in the pipeline, filter pressure difference ≤ 0.1MPa, and no carbon buildup in the burner nozzle.
Boiler body: Confirm that the pressure gauge is reset to zero, the water level is normal, and the safety valve is manually tested for sensitivity.
Environmental safety: Good ventilation, complete fire-fighting equipment (fire extinguishers, oil absorbing cotton), distance between fuel tanks and boilers ≥ 5m.
2、 Ignition and operation
1. Ignition process
Start the fan to blow the furnace for 5-10 minutes to remove residual oil and gas.
Ignite from the side, slowly open the oil valve, and observe that the flame should be light blue (yellow flame requires adjusting the air volume).
2. Operation monitoring
Maintain stable pressure and water level, and regularly discharge pollutants (at low loads).
Check if the interlock protection devices (such as low water level and shutdown protection) are functioning properly.
3、 Emergency and Maintenance
1. Exception handling
Immediately close the oil valve in case of flameout, ventilate and reignite; When overpressure or low water level triggers interlock shutdown, manual reset is required.
2. Regular maintenance
Clean safety valves and pressure gauges monthly, and replace worn parts.
Clean up the accumulated dust in the flue and check the sealing of the pipeline.
4、 Other precautions
1. Prohibit illegal operations (such as overpressure operation), and cut off oil before shutting down the furnace.
2. The fuel temperature should be higher than the flash point to prevent condensation from causing combustion faults.
By standardizing operations and regular maintenance, the safety risks of oil fired hot water boilers can be effectively reduced.