What is the atomization method and operating principle of gas burner?
What is the atomization method and operating principle of gas burner?
The atomization method and basic operating principle of gas burners. If alcohol oil is chosen as the fuel, the alcohol oil-based burner can choose mechanical atomization burner or medium atomization burner according to the viscosity of the fuel oil. When fuel is burned in the radiation chamber furnace of the combustion engine, high-temperature flue gas is generated and used as a heat carrier to flow towards the convection chamber and be discharged from the chimney.
The crude oil to be heated first enters the convection chamber furnace tube of the combustion engine, and the temperature of the crude oil is generally 29. The furnace tube mainly obtains heat from the flue gas flowing through the convection chamber through convection, and this heat is then conducted from the outer surface of the furnace tube to the inner surface of the furnace tube through heat transfer, while also being transferred to the crude oil flowing inside the tube through convection.
Crude oil enters the radiation chamber furnace tube from the convection chamber furnace tube. In the radiation chamber, the flame emitted by the combustion engine mainly radiates a part of the heat to the outer surface of the furnace tube, and another part to the furnace wall on which the furnace tube is laid. The furnace wall then radiates the heat to the outer surface of the furnace tube on the opposite side of the backfire surface.
These two parts of radiant heat work together to raise the temperature of the outer surface of the furnace tube and create a temperature difference with the inner surface of the tube wall. Heat flows towards the inner wall of the tube through conduction, and the crude oil flowing inside the tube continuously obtains heat from the inner wall through convection, achieving the process requirements for heating crude oil.
The heating capacity of a combustion engine depends on the strength of the flame (furnace temperature), the surface area of the furnace tube, and the total heat transfer coefficient. The stronger the flame, the higher the furnace temperature, the greater the temperature difference between the furnace and the oil flow, and the greater the heat transfer; The larger the area of the furnace tube where the flame comes into contact with the flue gas, the more heat is transferred; The better the thermal conductivity of the furnace tube, the more reasonable the furnace structure, and the more heat is transferred. The strength of the flame can be adjusted by controlling the flame. But for a furnace with a certain structure, the furnace temperature will no longer rise after reaching a certain value under normal operating conditions.
The atomization method and basic operating principle of gas burner, as well as the total heat transfer coefficient on the surface of the furnace tube, are constant for a furnace, so the heating capacity of each furnace has a certain range. In practical use, poor flame combustion and furnace tube coking can affect the heating capacity of the burner. Therefore, it is important to control the burner to achieve complete combustion and prevent local furnace tube temperatures from becoming too high and coking.