Burner injectors can be classified into the following main categories according to their structure and operating method:
1. Pressure Atomizing Nozzle
This is the most widely used type, relying on oil pump pressure to atomize fuel.
Features:
Simple structure
Low cost
Good atomization effect
Commonly used in diesel, kerosene, and other light oil burners
Applications:
Household boilers
Commercial boilers
Industrial boilers
Hot air furnaces
Common Brands:
Danfoss
Delavan
Monarch
Steinen
2. Return Oil Nozzle
Also known as a return oil regulating nozzle, it adjusts the actual injection volume by changing the return oil flow.
Features:
Wide adjustment range
Stable atomization quality
Suitable for proportional control burners
Good flame stability
Suitable for:
Large industrial burners
Proportional control burners
Heavy oil combustion systems
3. Dual-media fuel injector (Air/Steam Atomizing Nozzle)
Utilizes compressed air or steam to assist in fuel atomization.
Classification:
Air atomizing nozzle
Steam atomizing nozzle
Features:
Extremely fine atomized particles
Can burn high-viscosity fuels
High combustion efficiency
Suitable for:
Heavy oil boilers
Asphalt heating furnaces
Petrochemical industry
Industrial kilns
4. Mechanical centrifugal fuel injector (Mechanical Atomizing Nozzle)
Relies on centrifugal force generated by the internal swirling structure of the nozzle for atomization.
Features:
No auxiliary medium required
Uniform atomization
High reliability
Suitable for:
Medium and large burners
Industrial boilers
5. Rotary Cup fuel injector (Rotary Cup Atomizer)
Utilizes a high-speed rotating cup to atomize fuel into fine droplets.
Features:
Can burn high-viscosity fuel oil
Wide range of fuel injection volume adjustment
Highly adaptable to various fuel types
Suitable for:
Large industrial boilers
Marine boilers
Power plant boilers
6. Ultrasonic Atomizer
Utilizes ultrasonic vibration to atomize fuel oil.
Features:
Extremely fine atomization
High combustion efficiency
Low energy consumption
Disadvantages:
Higher cost
Relatively limited industrial applications
Burner injectors can be classified into the following main categories according to their structure and operating method:
1. Pressure Atomizing Nozzle
This is the most widely used type, relying on oil pump pressure to atomize fuel.
Features:
Simple structure
Low cost
Good atomization effect
Commonly used in diesel, kerosene, and other light oil burners
Applications:
Household boilers
Commercial boilers
Industrial boilers
Hot air furnaces
Common Brands:
Danfoss
Delavan
Monarch
Steinen
2. Return Oil Nozzle
Also known as a return oil regulating nozzle, it adjusts the actual injection volume by changing the return oil flow.
Features:
Wide adjustment range
Stable atomization quality
Suitable for proportional control burners
Good flame stability
Suitable for:
Large industrial burners
Proportional control burners
Heavy oil combustion systems
3. Dual-media fuel injector (Air/Steam Atomizing Nozzle)
Utilizes compressed air or steam to assist in fuel atomization.
Classification:
Air atomizing nozzle
Steam atomizing nozzle
Features:
Extremely fine atomized particles
Can burn high-viscosity fuels
High combustion efficiency
Suitable for:
Heavy oil boilers
Asphalt heating furnaces
Petrochemical industry
Industrial kilns
4. Mechanical centrifugal fuel injector (Mechanical Atomizing Nozzle)
Relies on centrifugal force generated by the internal swirling structure of the nozzle for atomization.
Features:
No auxiliary medium required
Uniform atomization
High reliability
Suitable for:
Medium and large burners
Industrial boilers
5. Rotary Cup fuel injector (Rotary Cup Atomizer)
Utilizes a high-speed rotating cup to atomize fuel into fine droplets.
Features:
Can burn high-viscosity fuel oil
Wide range of fuel injection volume adjustment
Highly adaptable to various fuel types
Suitable for:
Large industrial boilers
Marine boilers
Power plant boilers
6. Ultrasonic Atomizer
Utilizes ultrasonic vibration to atomize fuel oil.
Features:
Extremely fine atomization
High combustion efficiency
Low energy consumption
Disadvantages:
Higher cost
Relatively limited industrial applications