Difference between high frequency induction heater and traditional heating

The electromagnetic induction heater is a heating controller based on the principle of electromagnetic heating induction. It comes from the electromagnetic induction phenomenon discovered by Faraday, that is, the alternating current generates the induced current in the conductor, which leads to the conductor heating. Since the discovery of the thermal effect of electric current through wires, there have been many inventors engaged in the research and manufacture of electric heaters in the world. In 1890, Swedish technicians invented the first induction melting furnace - slotted cored furnace; In 1893, the rudiment of electric iron appeared in the United States; In 1909, the emergence of electric cooker realized the process of transforming electric energy into heat energy; In 1916, the Americans invented the closed tank cored furnace, and the electromagnetic induction technology gradually entered the practical stage. With the continuous development of these technologies, the development of electromagnetic induction heating technology and electromagnetic heater is getting better and better.

As we all know, most of the traditional heating industries use resistance wire and quartz heating method. However, the thermal efficiency of this traditional heating method is relatively low. Resistance wire and quartz mainly heat themselves after being electrified, and then transfer the heat to the barrel, so as to heat the goods. The highest heat utilization rate of this heating effect is only about 50%, In addition, about 50% of the heat is released into the air, and the power loss of all traditional resistance wire heating methods is as high as 50%.

However, the electromagnetic induction heater generates magnetic field through current, which makes the iron metal pipe heat itself. In addition, the heat insulation material prevents the heat emission of the pipe. The heat utilization rate is more than 95%. Theoretically, the power saving effect can reach more than 50%. However, considering the different quality of the electromagnetic induction heating controller, the energy conversion efficiency is not the same, As well as different production equipment and environment, the energy saving effect of all electromagnetic heating generally can reach at least 30%, and the highest can reach 70%.