Explosion proof electric heater is a device that converts electrical energy consumption into thermal energy to heat the heated substance. During operation, the low-temperature fluid medium enters its input port through a pipeline under pressure and travels along a specific heat exchange channel inside the electric heating container, carrying away the high-temperature heat generated by the electric heating element during operation, causing the temperature of the heated medium to rise. The outlet of the electric heater can obtain the high-temperature medium required for the process.