An effective way to improve the efficiency of electromagnetic heating.
The thermal efficiency of electromagnetic heating equipment is the main electrical parameter of electromagnetic heating equipment, and its efficiency is determined by four main factors. First of all, the amplification factor and switching loss of high-power high-frequency current amplifiers are important factors affecting thermal efficiency. We use the high-frequency and high-power module of Infineon in Germany, which is a world-class product with high amplification, fast switching speed and low switching loss.
Secondly, the cross-sectional area of the electromagnetic wire of the solenoid coil also has an important impact on the thermal efficiency. According to the ICC's formula for calculating the current carrying capacity of conductors, we calculate the cross-sectional area of the magnet wire and then add 20% of the industrial margin to ensure the conduction efficiency of the current.
The third point is the number of clusters and roots of the solenoid coil cell wire. In order to overcome the negative effect of high-frequency current, we made nine clusters of 1062 magnet wires, which greatly improved the conduction efficiency of high-frequency current, thereby effectively improving the thermal efficiency.
Finally, the optimal distance between the electromagnetic field and the radiation construction is also a key factor affecting the thermal efficiency. In practice, this distance cannot be zero, because the radiation efficiency, the high-frequency oblique wave voltage insulation problem, and the insulation problem of the heating element all need to be considered. These distances were derived by our experiments to achieve the best heating results.
In summary, the effective ways to improve the efficiency of electromagnetic heating include the use of high-efficiency high-power high-frequency current amplifiers, the selection of appropriate cross-sectional areas of magnet coils and magnet wires, the use of multiple clusters and multiple magnet wires, and the determination of the optimal electromagnetic field and radiation construction distance. These measures can enable our electromagnetic heating equipment to achieve higher thermal efficiency, thereby saving energy and increasing production efficiency.