4/7/2023 0 Comments Oil burner draft controlexcessive air leaks in boiler or furnace.poor fuel supply, malfunctioning fuel pump.insufficient draft, incorrectly adjusted draft regulator, improper fan delivery.The amount of smoke can be measured with a smoke tester where smoke particles set on a filter paper are interpreted according a Bacharach scale. Smoke in flue gas indicates poor burner performance. High carbon dioxide content may be caused by When the CO 2 content of the flue gas is too high it is common with excess smoke in the flue gas. Low carbon dioxide content may be caused by When the CO 2 content of the flue gas is low (less than 8 percent) heat is lost up the chimney and the operation is inefficient. Proportional burner power continuously changes, it changes determined by the demand of the boiler.Other burner power change is determined by the number of injectors.To secure safe and efficient operation of gas or fuel oil burners it is common to test the burners for Primary has one injector, secondary has two fuel injectors, tertiary has three injectors. Depending on the fuel, the burner is divided into light oil (kerosene, diesel>, heavy oil (residue) and Oil Burner.Īccording to the number of burner nozzle and regulation in different ways, the burner is divided into primary, secondary, tertiary and proportional. We took apart the base body, namely oil system, air system, and thus circuit systems separately. In addition it can better ensure complete combustion of the fuel supplied to the boiler, it also has automatic control, alarm and protection devices. and let the oil droplets atomization further.īurner is combination by fuel delivery ,atomization devices ,air circuit devices. At the same time, the wind which produced by blower through the rotor, and it's direction of rotation is opposite to the oil droplets. Its working principle is: make fuel through the hollow shaft into the high-speed rotating cup-shaped device 3000 ~ 5000r / min, Under the effect of centrifugal force, forming a thin oil film on the inner wall of the rotor, flying along the cup, and is atomized into a very fine oil particles. Under turbulent circumstances, oil through the orifice diffusion, combined with the centrifugal force, forming a surface tension and crushed into many small oil particles, finally achieve the purpose of atomization. Oil produced strong centrifugal rotation in the swirl chamber, causing the groove pulsating, ejected from the nozzle holes and form a hollow cone-shaped film. Mechanical atomizing nozzle is composed of : swirl chamber, oil and grease nipple nuts and other parts, has a certain pressure, fuel temperature, and through the hole and sump into the tangential grooves, and access to high speed, then into the cyclone chamber. Mechanical atomizing nozzle usually use centrifugal nozzle. Mechanical atomization is use the high oil pressure, and the oil discharged from the orifice at high speed to achieve atomization. Servo motor provide power for the fan motor, pump, air damper, oil regulator. Ignition and combustion stabilization equipment by a transformer, ignition electrodes and other components.stable combustion device comprises adjustable air combustion head and disk components.Įlectrical system by the flame sensor, combustion process controller, fuel heating controller and other components. Burner is the key equipment of the oil-fired boiler, which consists of injector portion (atomizer), adjusting the wind section, ignition and combustion stabilization equipment, electrical systems and motors and servo motors, and so on.įuel injection device include pump, pump control valves, filters, oil preheaters, solenoid valves, fuel injectors, oil return valve and other components Īdjust the air flow part by the fan, air baffle, adjusting sleeve, shell and other components. If need let mist and air mixes well, that wad achieved by the burner. For the full combustion of fuel oil, it need to improve the atomization of the oil.
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