Intermediate Frequency Induction Heater Series

Shandong Weiterui Industrial Technology Co., Ltd. is one of the leading manufacturers and suppliers of intermediate frequency induction heater series in China. Welcome to buy high quality bearing heaters made in China here from our factory. Please be free to enjoy our discount price and good service.

Introduction of the principle of medium and high frequency electromagnetic induction heating

The principle of electromagnetic induction to produce high frequency induction eddy current heat effect to heat the workpiece is essentially a frequency converter with power control function. Heating power 50Hz power frequency power supply into 10 kHz or higher high frequency power supply, high frequency current through the coil to produce alternating magnetic field, when the magnetic field through the heated metal workpiece, the alternating magnetic line through the metal workpiece form loop, so in its cross section vortex, make the local heating, and then achieve the purpose of industrial heating.

Introduction to the WTR IF induction heater

The WTR IF induction heater is an advanced tool for the installation and disassembly of industrial accessories in the industrial transmission field, which can improve the quality of installation or maintenance. It is fast, simple and energy efficient compared to conventional methods. Can be applied to the following areas:

1.1 Maintenance of the electromechanical industry:

Disassembly and installation of large mechanical and electrical equipment, such as the installation and disassembly of bearing inner sleeve, gear, chain wheel, opposite wheel, coupling, connection shaft, balance shaft, roller motor rotor and other large workpieces;

1.2 Petrochemical industry

Petroleum pipeline preheating, pipeline heat coating, oil storage tank heating, etc.;

1.3 preheating before welding, heat treatment and hydrogen elimination treatment

Pipe preheating before welding, mold preheating, pipe hydrogen removal treatment after welding, post-welding heat treatment for steel structure, post-welding heat treatment for the main steam pipe of the boiler

Adapt to the working conditions and the operation of a brief introduction

1. Thermal assembly

First, place the customized induction tooling inside the heating workpiece (for temperature difference, the internal and external ring sensors can be heated simultaneously); adsorb the temperature sensor to the inner ring of the workpiece, turn on the host power supply to set the heating temperature, and start the equipment for heating. No temperature sensor is used in the time mode.

2. Thermal disassembly

First of all, the auxiliary material and the workpiece to be disassembled are in place, then the insulation blanket is wrapped around the workpiece, the insulation blanket is wrapped on the insulation blanket with induction cable, the temperature sensor is adsorbed at the edge of the workpiece, set the temperature and time, and start the equipment for heating.(External force is required for disassembly)

3. Preheat before welding, and remove hydrogen after welding

Custom induction truck

Place the tropic or induction vehicle in the weld position, fix the tropic to prevent sliding, resulting in poor heating effect; set the heating temperature, place the sensor in the weld position, then start the equipment, heat the equipment will automatically stop, remove the relevant equipment, welding operation.

4. Preheat the pipeline

Preheat tooling

If there is a custom tooling, it can be directly placed in the preheating position. If the induction cable is used, first place the insulation blanket on the surface of the workpiece, then wrap the induction cable, and then set the temperature, place the sensor on the outer wall of the workpiece, start heating, and complete the automatic shutdown.

Some WTR IF winding heater parameters (greater power can be customized according to the workpiece parameters)

WTR IF induction heating characteristics and main technical indicators

WTR medium frequency induction heating power supply is an energy saving product of DSP + IGBT structure; the product is IGBT inverter and adopts DSP for full digital precise control, always ensure the IGBT working in ZCS (zero current switch) condition; full air cooling structure greatly reduces the power loss; various operation control modes and set functions enable the equipment to suit the process requirements of almost all induction heating occasions; perfect restriction protection measures enable the equipment to maintain continuous and safe operation under various working conditions.

2) The power supply is fully air cooled structure, the main engine, transformer and capacitor group are air cooled.

3) Air cooling sensors can be used in many cases; the whole system does not require water.

5) Uninterrupted operation design: In the case of quick cutting or flash of the power supply circuit, or accidental protection, the device can automatically diagnose, and automatically return to the normal operation state (manual restart), so as to avoid the production loss caused by shutdown.

7) The output of the device is transformer isolation type, high safety, in line with European and American standards.

9) Timed operation function: with the positive timing and automatic shutdown function.

15) Device efficiency 75%, power factor 0.90 (ratio of output power to input power of transformer box at 50% rated power). Most magnetic metal heating power supplies can be more than 75% efficient.

16) The equipment grounding system is safe and reliable (including the equipment entry and exit lines, and the buyer shall provide a reliable connection point and reliable grounding in the power distribution cabinet). The equipment has a complete safety and protection function. Alarm and protection event recording and viewing function: the device will record all alarm and protection events occurring during operation, which operators can view at any time, which is conducive to equipment fault diagnosis and problem analysis.

17) Heating cable insulation grade: Grade F.

Equipment grounding system is safe and reliable (including equipment entry and exit line, the buyer shall provide reliable connection point and reliable grounding in the power distribution cabinet)

Built-in output circuit (including sensor / sensor / cable, extension cable / copper row) insulation resistance online monitoring (optional) function (i. e. leakage detection function), can display the insulation resistance value, can set the insulation resistance alarm / protection value.

Alarm and protection event recording and view function: the device will record all alarm and protection events occurred during operation, operators can view at any time, which is very conducive to equipment fault diagnosis and problem analysis.

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