Flange type electric heaters are mainly used for insulation and heating of various storage tanks, containers, and materials inside oil tanks in industries such as petroleum, chemical, food, and machinery. The connection method can be flange or threaded end face sealing.

　　working principle

Adopting U-shaped tubular electric heating elements, assembled on the flange cover according to the design specifications for heating different media and power configuration requirements, inserted into the material to be heated. The large amount of heat emitted by the heating element during operation is conducted to the heated medium, causing the temperature of the medium to rise and meet the required process requirements. When the medium temperature reaches the set value required by the process, the control system will adjust the output power of the electric heater based on the temperature sensor signal and PID calculation to achieve temperature control of the resistive load of the heating element. Make the temperature of the medium uniform and meet the required standards; When the heating element exceeds the temperature or reaches a low liquid level, the interlocking protection device of the heating element immediately cuts off the heating power supply to prevent the heating element from burning out and extend its service life.