The reason for the flameout after the burner is ignited

To 　　The atomization method and basic working principle of the burner. If alcohol oil is selected as the fuel, the burner can choose a mechanical atomization burner and a middle atomization burner according to the viscosity of the fuel. When the fuel is burned in the furnace cavity of the burner, high-temperature flue gas is generated and used as the heat carrier of the convection chamber and discharged from the chimney. The crude oil to be heated first enters the convection chamber tube of the burner. The crude oil temperature is generally 29. The furnace tube mainly obtains heat from the flue gas flowing through the convection chamber through convection, and the heat is transferred from the outer surface of the furnace tube to the furnace tube through heat The inner surface of the tube is convectively transferred to the crude oil flowing in the tube. 　　The atomization method and basic working principle of the burner, the total heat transfer coefficient of the surface of the furnace tube is certain for the furnace, so the heating capacity of each furnace has a certain range. In actual use, poor flame combustion and coking of the furnace tube will affect the heating capacity of the burner, so attention should be paid to control the burner to completely burn and prevent local furnace tubes from overheating. Coking. To 　　The heating capacity of the burner depends on the flame intensity (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 contacts the flue gas, the more heat transfer; the higher the thermal conductivity of the furnace tube, The more reasonable the furnace structure, the more heat transfer. The intensity of the flame can be adjusted by controlling the burner. However, for a certain structure of the furnace, the furnace temperature will not increase after reaching a certain value under normal operating conditions. 　　 Crude oil enters the radiant furnace tube from the convection chamber furnace tube. In the radiation chamber, the flame sprayed from the burner radiates part of the heat to the outer surface of the furnace tube by radiation, and the other part radiates to the furnace wall where the furnace tube is placed on the furnace wall. The wall again radiates heat to the outer surface of the furnace tube on one side of the tempered surface. The two parts of radiant heat work together to heat the outer surface of the tube and create a temperature difference with the inner surface of the tube wall. The heat flows to the inner wall of the pipe in a conductive manner, and the crude oil flowing in the pipe continuously obtains heat from the inner wall of the pipe in a convective manner to achieve heating. Crude oil process requirements. 　　 There is a leak detector in the middle of the burner valve group (usually for boilers larger than 2 tons). It is used to detect whether the two solenoid valves are leaking. Once there is a leak, the burner will shut down and alarm. (Usually the detection starts when the gas turbine is started) Gas boiler leak detection failure, because the working time of gas valve group leak detection is before the burner starts, the burner will not start if the leak detection fails, and the fan will not operate. If internal leakage occurs, it is very dangerous for gas to enter the furnace. To 　　 Inspection method: 　　 1. Check the setting value of the low air pressure protection switch and set it to the low value that the burner can normally use. If the setting is too high, the leak detector will of course not light up, and the installation position should be in front of the main intake valve; 　　 Second, also check the setting value of the high air pressure protection switch, the installation position should be between the main intake valve and the butterfly valve; 　　 3. Remove the air pressure switch for leak detection, check if there is dust in the air inlet, clean it carefully, and set the scale at one-third of the dynamic air supply pressure after reinstalling; 　　Four. Start the gas boiler and look at the indicator light on the main gas valve. If the leak detection alarm before the indicator light is on, adjust the 'air pressure switch for leak detection' to be higher; if the indicator light is on, then the alarm is lowered; 　　 5. If the leak detection still fails, it means that the main air valve group is indeed not tightly closed and needs to be shut down for maintenance. 　　The unremovable burner is an integral burner, and the detachable burner is a split burner. Choose an integral burner. The thermal expansion coefficient of each material is different. The gas stove is used under high temperature for a long time. If the materials used in the upper and lower parts of the panel, especially the gas passage part, are different, the material will be thermally deformed after using for a period of time. At the time of the sealed state, which may cause air-tight leakage. Second, when the user cleans the stove, it is easy to place the stove head when it is placed or touched. In addition to causing gas leakage, it is also easy to form abnormal combustion, causing safety hazards such as backfire and deflagration of the gas stove. . The maximum fuel consumption per hour listed in the burner manual is based on the fact that there is no resistance in the furnace (internal pressure = 0) or only a little positive or negative internal pressure. To If you are interested in gas oil burners, please contact us for a quote!