What is the principle of electromagnetic heating?
Electromagnetic heating means that the components of an electronic circuit board generate an alternating magnetic field. When a container containing iron is placed on it, the metal part at the bottom of the container generates an alternating current, which causes the carrier to move at high speed and irregularly, and the friction generates heat energy....
What is the structure of an electromagnetic heater?
The electromagnetic heater consists of two parts. The first part is the electromagnetic heating controller, which first converts the low-frequency alternating current (AC) delivered by the power grid into direct current (DC), and then converts the DC into high-frequency AC. The second part is the electromagnetic heating ring, which consists of electromagnetic coils. A magnetic field is generated when it is energized. Iron-containing containers are placed on it, and the metal at the bottom generates eddy currents, which collide and friction with each other to produce heat energy.
Why is electromagnetic heating energy efficient?
Electromagnetic energy-saving principle is to let the metal heated body heat itself, according to the specific circumstances of the heated body outside the parcel of insulation materials, which will greatly reduce heat loss, improve thermal efficiency, to achieve energy-saving effect.
Comparison of electromagnetic heating and traditional resistance wire heating
The traditional resistance wire heating will lead to the heating of most of the heat dissipated into the air, so that the ambient temperature rises, the production environment in the summer caused by a particularly harsh impact.
Electromagnetic heating is where a metal cylinder heats itself through a magnetic field, with no direct contact between the coil and the cylinder. Wrapping a layer of thermal insulation outside the cylinder will reduce heat dissipation into the air and improve the production environment in the workshop.
What are the advantages of electromagnetic heating?
Energy saving: electric heat conversion efficiency is as high as 98%, the heater itself warms up quickly, the heat is fully utilized, and the power saving effect is remarkable, up to 30% or more.
Precise temperature control: the temperature of the outer wall of the cylinder body is consistent, can be controlled at 1, significantly improving product quality and production efficiency.
Heating uniformity: heating without dead angle, high-frequency magnetic field to make the whole barrel uniform and rapid heating.
Safety: the surface temperature of the electromagnetic coil is about 40 ~ 50, no need for high temperature protection can be safe to touch, safe and reliable.
High efficiency: short preheating time, only 1/3 ~ 2/3 of the original, greatly improving production efficiency.
Environmental protection: electromagnetic heating does not produce pollutants, clean and green, can be used without fear.
What are the applications of electromagnetic heating?
Chemical industry, such as: medical equipment steam sterilizer, medical infusion bags, plastic equipment production line, chemical liquid heating pipes.
Plastics industry, such as: plastic film blowing machine, wire drawing machine, injection molding machine, rubber extruder, cable production extruder. Various granulators and vulcanizers.
Energy and food industry, such as: crude oil pipeline heating, frying machine, tea processing equipment, high-power commercial induction cooker movement, commercial heating furnace, a variety of steam boilers.
Building materials industry, such as: gas pipeline production line, plastic pipe production line, pe rigid flat mesh, geotextile unit, automatic hollow molding machine, PE honeycomb board production line, single and double wall corrugated pipe extrusion line, composite air cushion film unit, PVC hard pipe, core foam pipe production line, PP extrusion transparent sheet production line, extruded polystyrene foam pipe, PE winding film unit.
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