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What is Electromagnetic Heating Equipment?
Electromagnetic heating equipment is an electrical appliance that converts electrical energy into thermal energy through the principle of electromagnetic induction. Its essence is to use electromagnetic induction to generate eddy currents in the column to electrically heat the heated workpiece. It converts electrical energy into electromagnetic energy, and then from electromagnetic energy to electrical energy. Electrical energy is converted into thermal energy inside the metal to achieve the purpose of heating the metal, thereby eliminating the hazards and interference of open flames during the heating process. It is an environmentally friendly heating solution.
It is mainly used in the fields of industrial heating and oil and gas exploration, covering wellhead heating and thawing, heavy oil extraction, and oil pipeline penetration insulation. Compared with traditional resistance heating, the thermal efficiency is increased to 97%, energy saving is 30%-50%, and the entire system has achieved independent research and development intellectual property rights. In terms of environmental protection, there is no need to burn fossil fuels, and clean energy conversion is achieved through electromagnetic coupling heating.
Electromagnetic heating is an energy conversion process that uses the principle of electromagnetic induction to convert electrical energy into thermal energy. The rectifier circuit converts the 50/60Hz AC voltage into DC voltage, and then the power control circuit converts the DC voltage into a high-frequency voltage with a frequency of 20-40kHz. When the high-speed changing AC current passes through the coil, the coil will generate a high-speed changing magnetic field. When the alternating magnetic lines of force in the magnetic field pass through the metal pipe (magnetic and conductive materials), countless small eddy currents are generated in the pipe wall, causing the pipe wall of the oil pipeline to heat up and exchange heat with the crude oil, thereby achieving the purpose of heating the crude oil.
Advantages of electromagnetic induction heating: Non-contact induction heating.
- 95% of the power consumption is converted into working heat energy.
Coil loss ≈ 2%, control unit loss ≈ 2%, and the insulation layer can retain 98% of the energy on the barrel.
- Only the barrel is heated, while the screw remains cool.
- Eliminate the inertia phenomenon of heating, and the temperature rise and fall are rapid and efficient.
- There is no dead angle in heating, and the entire barrel is evenly heated.
- The electromagnetic coil stays cool, so it has a very long life.It can realize automatic operation and precise control. This greatly improves production efficiency and product quality, while reducing interference from human factors.
Prospects of Electromagnetic Heaters
CONSULT AN EXPERTThe current world economy is in recession, companies are under great pressure to survive, and the plastics industry is highly competitive. Reducing production costs and improving product competitiveness are core issues faced by every company, and electricity costs account for a large proportion of the production costs of the plastics industry. Plastics companies are naturally very concerned about saving electricity costs and reducing production costs. The use of electromagnetic heating can have a significant power saving effect on plastic machinery, and can reach at least 30%. Some machines with low thermal efficiency can reach 80%. It is precisely because of this that it has attracted the attention of plastics companies and industry professionals across the country.
Application of electromagnetic induction heating
- Plastic and rubber industry, such as: plastic film blowing machine, wire drawing machine, injection molding machine, granulator, rubber extruder, vulcanizer, cable production extruder, etc.
- Pharmaceutical and chemical industry, such as: pharmaceutical infusion bags, plastic equipment production line, chemical industry liquid heating pipeline, etc.
- Energy and food industry, such as: heating of crude oil pipeline; food machinery, such as: super cargo aircraft and other equipment that require electric heating.
- High-power commercial electromagnetic stove movement.
- Building materials industry, such as: gas pipe production line, plastic pipe production line, PE plastic hard flat net, geonet unit, automatic hollow molding machine, PE honeycomb board production line, single and double wall corrugated pipe extrusion production line, composite air cushion film unit, PVC hard pipe, core layer foam pipe production line, PP extrusion transparent sheet production line, extrusion polystyrene foam pipe, PE winding film unit.
- Drying and heating in printing equipment.
- Heating in other similar industries.
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