The heating element of the air electric heater is a stainless steel electric heating tube

The heating element of the air electric heater is a stainless steel electric heating tube

An air electric heater is an electrical heating device that mainly heats the gas flow. The heating element of the air electric heater is a stainless steel electric heating tube. The inner chamber of the heater is equipped with multiple baffle plates (guide plates) to guide the flow of gas, extend the residence time of gas in the inner chamber, and fully heat the gas, making the gas heated uniformly and improving the heat exchange efficiency. The heating element of the air electric heater is a stainless steel heating tube, which is made by inserting electric heating wires into seamless steel pipes, filling the gaps with magnesium oxide powder with good thermal conductivity and insulation, and then shrinking the tube. When the current passes through the high-temperature resistance wire, the heat generated diffuses to the surface of the heating tube through crystalline magnesium oxide powder, and then transfers to the heated air to achieve the purpose of heating.

Install a primary coil with a higher number of turns and a secondary coil with a lower number of turns on the same iron core. The voltage ratio between input and output is equal to the ratio of coil turns, while the energy remains constant. Therefore, the secondary coil generates a large current under low voltage conditions. For an induction heater, the bearing is a short circuited single turn secondary coil that generates a large amount of heat through a large current under lower AC voltage conditions. The heater itself and magnetic yoke are kept at room temperature. Due to the induction of current by this heating method, the bearing will be magnetized. It is important to ensure that the bearings are demagnetized in the future, so that they will not attract metal magnetic debris during operation. FAG induction heaters have automatic demagnetization function.

It is the use of metal to generate eddy currents in an alternating magnetic field to generate heat, usually used in metal heat treatment and other aspects. The principle is that when thicker metals are exposed to an alternating magnetic field, an electric current is generated due to electromagnetic induction. After thicker metals generate current, the current will form a spiral flow path inside the metal, so that the heat generated by the current flow is absorbed by the metal itself, which will cause the metal to quickly heat up.

Uniformly distribute high-temperature resistance wires inside high-temperature resistant stainless steel seamless pipes, and densely fill the gaps with crystalline magnesium oxide powder with good thermal conductivity and insulation performance. This structure is not only advanced and has high thermal efficiency, but also generates uniform heat. When there is current passing through the high-temperature resistance wire, the heat generated diffuses through the crystalline magnesium oxide powder to the surface of the metal pipe, and then transfers to the heated part or air to achieve the purpose of heating.

Www.superbheater.com