Burner fails to ignite

There are two basic conditions for the ignition of burners similar to that of internal combustion engines. One is well atomized fuel oil, and the other is high-pressure sparks. The former requires sufficient oil supply of the oil pump, stable injection pressure difference between the front and back of the nozzle, and fine oil mist. During ignition, the air supply should be small to prevent sparks and oil mist from blowing off; the latter requires that high-pressure sparks have enough ignition energy, the gap between the two ignition electrodes is 3-5mm, and the insulation between the two electrodes is good, so the sparks can smoothly skip the gap between the electrodes to ignite the diesel oil mist.

The common reason for the burner is not on fire is that there is no ignition high pressure. The first reason is that the ignition transformer is not energized (it may be that the relay in the power supply line or controller is in poor contact); the second one is that the insulation between the two thermal power poles is poor due to carbon deposition, and the high voltage is leaked, so there is no discharge spark. The distance between the ignition electrodes should be about 3mm, the distance between the ignition electrodes and the front end face of the nozzle should be about 5-7mm, and the insulation between the two electrodes must be good.