Flange electric heating tube (also called plug-in electric heater): U-shaped tubular electric heating element is used. According to the design specifications of different heating media, it is assembled on the flange cover according to the power configuration requirements and inserted into the material to be heated. When the heating element is working The large amount of heat emitted is conducted to the heated medium to increase the temperature of the medium to meet the required process requirements. When the medium temperature reaches the set value required by the process, the control system adjusts the output power of the electric heater after PID calculation according to the temperature sensor signal, and realizes temperature control of the resistive load of the heating element. Make the temperature of the medium uniform and meet the required requirements; when the heating element is over-temperature or low liquid level, the interlocking protection device of the heating element immediately cuts off the heating power to prevent the heating element from burning out and prolong the service life.
