What is the working principle of a cast copper heater
The working principle of the Cast Copper Heater is to utilize an alternating magnetic field to install a primary coil with more turns and a secondary coil with fewer turns on the same iron core. The ratio of the input voltage to the output voltage is equal to the ratio of the number of turns in the coil, while the energy remains constant.
Therefore, the secondary coil generates a large current under low voltage conditions. For induction heaters, the bearing is a short-circuited single-turn secondary coil that passes a large current under a relatively low alternating voltage, thus generating a considerable amount of heat. The heater itself and the magnetic yoke remain at room temperature. Because this heating method can induce an electric current, the bearing will be magnetized. It is important to ensure that the bearing is demagnetized in the future so that it will not attract metal magnetic shavings during operation. All FAG induction heaters have an automatic demagnetization function.
The method of generating eddy currents in metals in an alternating magnetic field to heat them up is usually applied in metal heat treatment and other aspects. The principle is that when a relatively thick metal is placed in an alternating magnetic field, an electric current will be generated due to the electromagnetic induction phenomenon.
For thicker metals, when an electric current is generated, it will form a spiral flow path within the metal. As a result, all the heat produced by the current flow is absorbed by the metal itself, causing the metal to heat up rapidly.
This equipment is an energy-saving device for preheating or reheating fuel oil. It is installed before the combustion equipment to heat the fuel oil before combustion, making it reach a high temperature (105℃-150℃) to reduce the viscosity of the fuel oil and promote complete atomization and combustion, ultimately achieving the goal of energy conservation. It is widely used in the preheating or secondary heating of heavy oil, asphalt, light oil and other fuel oils.