Composition, working principle and characteristics of gas burners

Composition, working principle and characteristics of gas burners
Composition of gas burners
The structure of a gas burner consists of the following five systems:
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 include: shell, fan motor, fan impeller, air gun fire pipe, air door controller, air door baffle, cam adjustment mechanism, and diffusion plate.
2. Ignition system
The function of the ignition system is to ignite a mixture of air and fuel.
3. Monitoring system
The main components of the monitoring system are flame monitors, pressure monitors, and temperature monitors.
4. Fuel system
The function of the fuel system is to ensure that the burner burns the necessary fuel. The fuel system of the fuel burner mainly includes: oil pipes and joints, oil pumps, solenoid valves, nozzles, and heavy oil preheaters. Gas burners mainly include filters, regulators, solenoid valve groups, ignition solenoid valve groups, and fuel butterfly valves.
5. Electrical control system
The electronic control system is the command center and liaison center of the above systems. The main control component is a program controller, which is equipped with different program controllers for different burners. Common program controllers include the LFL series, LAL series, LOA series, and LGB series.
Working principle of gas burner
When combustible gases (city gas, natural gas, liquefied petroleum gas) are programmatically controlled by a microcomputer control system and enter the burner head, they are mixed with primary air and combustible gas, ignited and burned, and the secondary air is burned to achieve full combustion. The combustion state is detected and controlled by the automatic flame tracking system. When a combustion malfunction occurs (such as lack of oxygen in the combustion chamber, low pressure of combustible gas, cut-off of combustible gas, insufficient gas volume, etc.), the control system issues a command, the solenoid valve of the gas supply system quickly closes, the gas power is cut off, and the burner automatically purges and stops to indicate the malfunction.
What are the characteristics of gas burners
(1) High thermal efficiency: able to adapt to pressure fluctuations, self adjust the distribution of primary air (i.e. high pressure, frequent intake of primary air; low pressure, less intake of primary air), sufficient combustion, high thermal efficiency;
(2) High safety: The burner is equipped with a low fire. When starting the boiler, light a small fire first. When the small fire burns normally and stably, the automatic control system opens the main combustion gas valve, and the fuel enters the boiler for normal combustion without deflagration.
(3) Strong fuel adaptability: The burner can be suitable for various gases such as natural gas, liquefied petroleum gas, natural gas, and mixed liquefied petroleum gas with only a small number of components replaced.