The air damper is used to regulate the amount of air entering the burner, and it has a direct relationship with the burner's combustion efficiency. There are three methods for adjusting the air damper of a methanol fuel burner (hydraulic cylinder dampers are not suitable for methanol combustion and are therefore excluded):
I. Manual Adjustment Air Damper
All single-stage controlled methanol burners from Songran Methanol Combustion Equipment use manually adjustable air dampers. First, loosen the fixing screws on the air damper. Adjust the opening of the air damper according to the amount of methanol being sprayed, so that the combustion air matches the amount of methanol sprayed. Then tighten the fixing screws.
II. Servo Motor Adjustment Air Damper
The second type of air damper for Songran dual-stage controlled burners is a servo motor adjustable air damper. It uses the rotation angle of the servo motor to control the opening of the air damper. Clutch button: When pressed, the cam separates from the shaft. After the setting is completed, press again to release, and the cam and shaft will reconnect.
Cam and shaft connection:
1. First-stage fire air damper adjustment cam;
2. Second-stage fire air damper adjustment cam;
3. Second-stage solenoid valve action cam;
4. Fully closed, i.e., air damper opening when the machine is stopped;
Opening setting relationship: 1 > 4 > 3 > 2
III. Limit Switch Adjustment Air Damper
Dual-stage controlled alcohol-based fuel burners have two combustion states. In the first state, the first-stage flame burns alone, requiring less combustion air. In the second combustion state, the first and second-stage flames burn simultaneously, requiring more combustion air. Therefore, the air damper also needs to be set to two different openings. This type of burner has two types of adjustable air dampers. 1. When the methanol burner is not started or is in a stopped state, adjust the limit screws on the damper actuator to control the amount of air required for the first stage flame (initial setting);
2. After setting the initial value for the first stage air intake (when a dual-stage temperature controller is not installed), connect the second-stage temperature control wire. Starting the methanol burner will initially produce a small flame, and after approximately 10 seconds, the second stage flame will automatically ignite (the #2 methanol pump and #2 solenoid valve will open). At this point, the second stage combustion and air flow can be adjusted. This methanol damper adjustment method is not only economical but also significantly extends the service life of the methanol burner (commonly used with Songran high-pressure pump type methanol fuel burners).
The air damper is used to regulate the amount of air entering the burner, and it has a direct relationship with the burner's combustion efficiency. There are three methods for adjusting the air damper of a methanol fuel burner (hydraulic cylinder dampers are not suitable for methanol combustion and are therefore excluded):
I. Manual Adjustment Air Damper
All single-stage controlled methanol burners from Songran Methanol Combustion Equipment use manually adjustable air dampers. First, loosen the fixing screws on the air damper. Adjust the opening of the air damper according to the amount of methanol being sprayed, so that the combustion air matches the amount of methanol sprayed. Then tighten the fixing screws.
II. Servo Motor Adjustment Air Damper
The second type of air damper for Songran dual-stage controlled burners is a servo motor adjustable air damper. It uses the rotation angle of the servo motor to control the opening of the air damper. Clutch button: When pressed, the cam separates from the shaft. After the setting is completed, press again to release, and the cam and shaft will reconnect.
Cam and shaft connection:
1. First-stage fire air damper adjustment cam;
2. Second-stage fire air damper adjustment cam;
3. Second-stage solenoid valve action cam;
4. Fully closed, i.e., air damper opening when the machine is stopped;
Opening setting relationship: 1 > 4 > 3 > 2
III. Limit Switch Adjustment Air Damper
Dual-stage controlled alcohol-based fuel burners have two combustion states. In the first state, the first-stage flame burns alone, requiring less combustion air. In the second combustion state, the first and second-stage flames burn simultaneously, requiring more combustion air. Therefore, the air damper also needs to be set to two different openings. This type of burner has two types of adjustable air dampers. 1. When the methanol burner is not started or is in a stopped state, adjust the limit screws on the damper actuator to control the amount of air required for the first stage flame (initial setting);
2. After setting the initial value for the first stage air intake (when a dual-stage temperature controller is not installed), connect the second-stage temperature control wire. Starting the methanol burner will initially produce a small flame, and after approximately 10 seconds, the second stage flame will automatically ignite (the #2 methanol pump and #2 solenoid valve will open). At this point, the second stage combustion and air flow can be adjusted. This methanol damper adjustment method is not only economical but also significantly extends the service life of the methanol burner (commonly used with Songran high-pressure pump type methanol fuel burners).