1. Burner control and detection system
1) Program controller: There is a solidification sequence inside, and the whole process automatically controls the start-up, firepower conversion and flame monitoring of the burner.
2) Flame detector: UV electric eye or ion probe, used to detect the existence of flame.
3), Proportional or switch type controller and sensor: detect external temperature or pressure, and provide fire power conversion signal for program controller. (Auxiliary parts standing outside the burner)
4) Wind pressure switch: monitor the air supply pressure to ensure the normal operation of the blower.
5) Gas high pressure protection switch: monitor whether the gas pressure is too high. If the gas pressure is too high and exceeds the working range of the gas valve, the gas valve may not be able to close.
6) Gas low-pressure protection switch: monitor whether the gas pressure is too low. The gas pressure is too low to overcome the resistance formed by the gas valve, burner and boiler furnace.
7) Leak detector for gas valve group: check the airtightness of the gas valve through the built-in program. (Gas burners above 1200KW must be installed).
8) Ignition transformer and ignition electrode: Under the control of the program controller, high-voltage electricity is generated and sent to the ignition electrode to form arc sparks.
2. The gas and air ratio servo system of the burner
1) Throttle servo motor: controlled by the program controller to drive the damper and disc valve to the set position
Coaxial with the damper servo motor, the cam disc can be adjusted when rotating:
2) The ratio between the rotation angle of the cam and the movement of the connecting rod mechanism driven by the damper, the rotation angle of the baffle and the gas disc valve can be adjusted.
3) Air door baffle: at the air inlet of the air supply duct, it can control the amount of air intake
4) Gas disc valve: at the gas inlet of the combustion head, it can control the gas volume.
5), linkage mechanism: connecting the cam plate and damper baffle, gas disc valve
6) Flame mixing plate of the combustion head: fully mix the gas and air, and make the flame spin out according to the design.