After the boiler is ignited successfully and switched to normal operation, the load can be adjusted. At this time, the combustion in the furnace shall be observed frequently. In case of poor atomization of oil and gas, flame jumping, flame hitting the furnace liner and too high or too low exhaust temperature, the oil pressure, oil temperature, steam volume, air volume, air pressure and steam pressure shall be adjusted in time to ensure the safe and economic operation of the boiler. The size of oil pressure and air pressure is related to the boiler load. The adjustment of oil pressure is realized by adjusting the burner pressure or the oil return volume. The adjustment of air pressure is realized by the opening of valve.

   When adjusting the load, adjust the oil volume and air pressure. At the same time, the air volume must be adjusted synchronously to ensure the reasonable matching of oil volume and air volume, so as to achieve the purpose of economic operation of the boiler. 1、 Methods for judging the combustion of oil-fired and gas-fired boilers: (1) judging the combustion from the flame color and smoke exhaust color (2) judging the combustion from the flame length (3) Judge whether the combustion is good or bad from the C02 content in the flue gas and the excess air coefficient; 2. Combustion adjustment method of oil fired boiler: during normal combustion, the flame in the furnace is stable, white orange and generally has rumbling sound. If the flame jumps or has abnormal sound, the oil quantity and air volume shall be adjusted in time. If it still does not improve after adjustment, the flame shall be shut down to find out the cause and restart after taking measures Fire.