Specific division of industrial burner structure
Dec 17, 2022
Industrial burners and boiler burners structure
As a mechatronic equipment with a high degree of automation, industrial burners can be divided into five major systems from the functions they realize: air supply system, ignition system, monitoring system, fuel system, and electronic control system. the
1. Air supply system
The function of the air supply system is to send air with a certain wind speed and volume into the combustion chamber. Its main components are: casing, fan motor, fan impeller, air gun fire tube, damper controller, damper baffle, and diffuser. the
2. Shell: It is the main component of the installation bracket of various components of industrial burners such as boiler burners and the fresh air inlet channel. From the appearance point of view, it can be divided into two types: box type and gun type. Most of the box type burners have an outer cover of injection molding material, and the power is generally small. Most high-power burners use split shells, which are generally gun type. The constituent material of the shell is generally a high-strength lightweight alloy casting. the
3. Fan motor: It mainly provides power for the operation of the fan impeller and high-pressure oil pump, and some burners use a separate motor to provide power for the oil pump. Some low-power burners use single-phase motors, and the power is relatively small. Most burners use three-phase motors. Only when the motor rotates in a certain direction can the burner work normally. the
4. Fan impeller: It rotates at high speed to generate enough wind pressure to overcome the resistance of the furnace and chimney, and blow enough air into the combustion chamber to meet the needs of combustion. It is composed of a cylindrical wheel with blades at a certain angle of inclination. Its constituent materials are generally high-strength light alloy steel, and there are also injection-molded products. All qualified fan impellers have good dynamic balance performance. 5. Air gun fire tube: It plays the role of guiding the airflow and stabilizing the wind pressure. It is also an integral part of the air inlet channel. Generally, there is a jacket flange connected to the furnace mouth. Its constituent materials are generally high-strength and high-temperature-resistant alloy steels. the
6. Damper controller: It is a driving device that controls the rotation of the damper baffle through a mechanical linkage. Generally, there are two types of hydraulic drive controllers and servo motor drive controllers. The former works stably and is not prone to failure, while the latter has accurate control and smooth air volume changes. the
7. Damper baffle: the main function is to adjust the size of the air inlet channel to control the amount of air intake. Its constituent materials include injection molding and alloy. The injection molding baffle is generally in the form of a single piece, and the alloy baffle has a variety of combinations such as single piece, double piece, and three piece. the
8. Diffusion disk: Its special structure can generate swirling airflow, which is conducive to the full mixing of air and fuel, and also has the function of adjusting the secondary air volume.
