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Industrial inverter electromagnetic heating application system
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Industrial inverter electromagnetic heating application system
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- Description
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- Commodity name: Industrial inverter electromagnetic heating application system
Frequency conversion electromagnetic heating technology is based on Faraday's law of electromagnetic induction, which generates alternating magnetic field through alternating current, so that the internal eddy current of metal objects is generated, thereby heating rapidly.
► Overview of frequency conversion electromagnetic heating technology
(1) Basic principles
Based on Faraday's law of electromagnetic induction, the variable frequency electromagnetic heating technology generates an alternating magnetic field through an alternating current, which causes eddy currents to be generated inside the metal object, so as to generate heat quickly. The specific process is as follows:
1. Rectification and filtering: The power frequency alternating current is rectified into direct current through the diode, and smoothed by the capacitor to reduce voltage fluctuations.
2. Inverter: DC power is converted into high-frequency alternating current through power switching devices (such as IGBTs and MOSFETs).
3. Electromagnetic induction: high-frequency alternating current through the coil to generate an alternating magnetic field, when a metal object is placed in this magnetic field, due to the electromagnetic induction effect, eddy currents are generated inside the object, and then heating is realized.
4. Intelligent control: The temperature is monitored in real time through the sensor, and the microprocessor adjusts the output power according to the set value to ensure accurate temperature control.
(2) System composition A complete inverter electromagnetic heating system usually includes the following components:
1. Power module: including rectifier, filter, inverter and protection circuit.
2. Induction coil: designed according to the characteristics of the workpiece, it is used to generate high-frequency magnetic fields.
3. Load: A metal object that needs to be heated.
4. Cooling system: water-cooled or air-cooled system for heat dissipation.
5. Control system: including temperature sensor, microprocessor and user interface for real-time monitoring and adjustment.
► Second, the advantages of frequency conversion electromagnetic heating technology
(1) High efficiency and energy saving
Compared with the traditional heating method, inverter electromagnetic heating has a higher energy conversion efficiency, usually reaching more than 90%. This is because electromagnetic induction acts directly on the inside of the metal object, reducing the energy loss during heat conduction. In addition, due to the fast heating rate, the heating time can be shortened, further saving energy.
(2) Precise temperature control
The inverter electromagnetic heating system is equipped with advanced temperature sensors and microprocessors, which can achieve high-precision temperature control (±1°C). This is especially important in temperature-sensitive processes such as chemical reactions, food processing, etc.
(3) Green environmental protection
Electromagnetic heating does not involve a combustion process, so there is no exhaust gas emission and meets strict environmental requirements. At the same time, due to the high heating efficiency and low energy consumption, it also helps to reduce carbon emissions.
(4) Low maintenance cost
The electromagnetic heating system has no open flame, and there is no common ablation and oxidation problems of traditional heating equipment, which prolongs the service life of the equipment. In addition, the modular design of the system allows for easy repair and replacement, further reducing maintenance costs.
(5) Wide range of applications
Inverter electromagnetic heating is suitable for the heating needs of various metal materials, whether it is steel, aluminum or stainless steel, it can achieve efficient heating. This makes it widely used in a wide range of industrial sectors.
► The specific application of frequency conversion electromagnetic heating in industr
(1) Plastic and rubber industry
1. Application scenarios
Heating and heat preservation of plastic extruder and injection molding machine barrel.
2. Advantage analysis
Fast heating: Electromagnetic heating can raise the barrel temperature to working temperature in a matter of seconds, significantly improving production efficiency.
Uniform temperature: It avoids the problem of uneven heating of traditional resistance wires and improves product quality.
Energy saving and environmental protection: energy efficiency is 30%-70% higher than traditional heating methods.
(2) Chemical and pharmaceutical industries
1. Application scenarios
Heating and heat preservation of reactors, distillation kettles and other containers.
2. Advantage analysis
Precise temperature control: meet the strict requirements of chemical reaction for temperature control and improve reaction efficiency.
Non-contact heating: avoids the risk of local overheating and contamination and improves product purity.
High safety: No open flame heating, reducing the risk of explosion and fire.
(3) Metallurgical metal processing industry
1. Application scenarios
Metal smelting, heat treatment and other processes.
2. Advantage analysis
Uniform heating: Electromagnetic induction heating makes the whole metal object evenly heated, avoiding the problem of large temperature difference caused by traditional flame heating.
Easy to automate: Combined with modern automatic control systems, it can achieve unattended operation and improve production efficiency.
Improved material properties: Precise temperature control and uniform heating help to improve the mechanical properties and surface quality of metal materials.
(4) Food processing industry
1. Application scenarios Food frying, baking, steaming and other processes.
2. Advantage analysis Rapid heating: Shortens heating time to preserve the original flavor and nutrients of food. Clean and hygienic: no open flame, no exhaust emissions, in line with food safety standards.
Easy to control: Precise temperature control ensures stability and consistency in food processing.
(5) Textile printing and dyeing industry
1. Application scenarios
Heating of fabric dyeing and setting machines.
2. Advantage analysis
Energy-efficient: Compared to traditional steam heating, electromagnetic heating can save a lot of energy.
Temperature stability: ensure the quality of dyeing and reduce color difference.
Environment-friendly: no waste water and exhaust gas discharge, reducing environmental protection pressure.
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