Explosion-proof Heater Principle
Working Principle
An explosion-proof electric heater is a device that converts electrical energy into heat energy to heat the material to be heated. During operation, the low-temperature fluid medium enters the input port through the pipeline under pressure, flows along the specific heat exchange channel inside the electric heating container, which is designed using fluid thermodynamics principles, and takes away the high-temperature thermal energy generated by the electric heating element during operation, thereby raising the temperature of the heated medium. The outlet of the electric heater provides the high-temperature medium required by the process. The internal control system of the electric heater automatically adjusts the output power of the electric heater based on the temperature sensor signal at the outlet, ensuring uniform temperature of the medium at the outlet. When the heating element overheats, the independent overheat protection device of the heating element immediately cuts off the heating power supply, preventing the heated material from coking, deteriorating, or carbonizing due to overheating, and in severe cases, preventing the heating element from burning out, effectively extending the service life of the electric heater.
Explosion-proof Principle
Explosion-proof heaters are generally used in hazardous locations where explosions may occur. Since the surrounding environment contains various flammable and explosive oils, gases, dust, etc., contact with electric sparks can cause explosions. Therefore, heating in such environments requires the use of explosion-proof heaters. The main explosion-proof measure of explosion-proof heaters is the installation of an explosion-proof device in the junction box of the heater, eliminating the risk of ignition by electric sparks. For different heating applications, the explosion-proof rating requirements of the heater vary, depending on the specific situation.
