About the introduction of the air supply system accessories in the Luoyang low-nitrogen burner
Writer： admin Time：2021-11-08 16:35 Browse：℃
At present, various low-nitrogen combustion technologies are the main and relatively mature technical measures to reduce the emission concentration of coal-fired boilers. Low nitrogen Burners play an important role in suppressing harmful gas emissions, so we should use low-nitrogen burners as much as possible in coal combustion.
The function of the air supply system in the low-nitrogen burner is to feed air with a certain wind speed and volume into the combustion chamber. Its main components are as follows: shell, fan motor, fan impeller, air gun fire tube, air door controller, Throttle baffle, diffuser plate.
Shell: It is the main component of the mounting bracket of each part of the burner 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 box type burners have an injection-molded material outer cover, and the power is generally small. Most high-power burners use a split shell, which is generally a gun type. The material of the shell is generally high-strength lightweight alloy castings.
Fan motor: Mainly provide power for the operation of fan impeller and high-pressure oil pump, and some burners use a separate motor to provide oil pump power. Some low-power burners use single-phase motors with relatively small power. Most of the burners use three-phase motors. The motor can only operate normally when the motor rotates in a certain direction.
Fan impeller: Through high-speed rotation, enough wind pressure is generated to overcome the resistance of the furnace and the chimney, and enough air is blown into the combustion chamber to meet the needs of combustion. It consists of cylindrical wheels equipped with blades with a certain angle of inclination. Its constituent materials are generally high-strength lightweight alloy steel, and there are also injection-molded products. All qualified fan impellers have good dynamic balance performance.
Air gun fire tube: It plays a role in guiding the airflow and stabilizing the air pressure. It is also a component of the air inlet channel. Generally, there is an outer jacket flange connected to the furnace mouth. Its constituent material is generally high-strength and high-temperature resistant alloy steel.
Damper controller: It is a driving device that controls the rotation of the damper baffle through a mechanical linkage. There are generally 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.
Throttle baffle: The main function is to adjust the size of the air inlet channel to control the size of the air inlet. Its constituent materials are injection molding and alloy. Injection molding baffles are generally in single-piece form, and alloy baffles are available in multiple combinations such as single-piece, double-piece, and three-piece. Diffusion disk: Its special structure can generate rotating air flow, which helps to fully mix air and fuel, and also has the function of adjusting the volume of secondary air.
The above is an introduction for you about the air supply system accessories in Luoyang low-nitrogen burner. If you want to know other contents of the low-nitrogen burner, please pay attention to Zhengzhou Bona Thermal Energy Equipment Co., Ltd.