Three Methods of Adjusting the Methanol Burner Damper
The damper of the methanol burner is mainly used to regulate the intake volume and control combustion. The damper is used to regulate the amount of air entering the combustion chamber. It directly affects the combustion effect of the combustion chamber. There are three ways to adjust the damper of a methanol burner.
1. Manual adjustable damper
All single stage controlled methanol boiler burners for low nitrogen boilers use manually adjustable dampers. Firstly, loosen the fixing screws on the damper, and then adjust the opening of the damper according to the methanol injection volume to match the combustion air and methanol injection volume. Then tighten the fixing screws.
2. Servo motor adjustable damper
The the second mock examination damper of the burner of the low nitrogen boiler is a servo motor adjustable damper. The rotation angle of the servo motor is used to control the opening of the damper.
Clutch button: When pressed, the cam and shaft separate. After setting up, press again and then pop up, the cam and shaft are combined
1. First-class fire damper adjustment cam;
2. Secondary fire damper adjustment cam;
3. Two stage solenoid valve action cam;
4. Fully closed, i.e. opening the damper when closed;
Opening setting relationship: 1>4>3>2
3. Limit type regulating damper
The two-stage controllable methanol burner has two combustion states.
In the first stage: the flame in the first stage burns alone, requiring less combustion air.
In the secondary combustion state: both the primary and secondary flames burn simultaneously. More combustion air is needed. Therefore, the valve also has two openings. The boiler burner has two types of adjustable dampers.
1. When the methanol boiler burner does not start or stop, please adjust the limit screw on the damper actuator to control the amount of air required for the first stage flame;
2. After setting the primary air inlet value, connect the secondary temperature control line. At this point, the methanol burner will start with a low flame and automatically ignite the secondary flame for about 10 seconds; Now you can enter the second stage of time combustion and air distribution adjustment. This methanol damper adjustment method is not only economical, but also greatly extends the service life of the methanol burner.