Common faults and troubleshooting of power frequency coreless medium frequency induction heating equipment

Broken cooling water pipe

Cause: scale blockage.

Troubleshooting method: regular replacement and cleaning

Water cooling cable damage

Cause: aging due to long-term use, pipe cracking.

Troubleshooting method: Replace immediately and regularly, and check for leaks.

Furnace cooling water temperature rises

1. There is rust or foreign matter blocking the pipe. Solution: pickle or blow with compressed air when the furnace is empty.

2. The water pump displacement does not reach the pump supply volume. Solution: Repair the water pump and confirm whether the amount of water is appropriate.

3. Part of the furnace lining has been burned out. Solution: Check the burning damage of the furnace lining and repair it in time.

Coil grounding accident

Foreign iron beans and foreign matter adhere to the surface of the coil and cause a short circuit. Solution: Clean daily and protect with dust-proof tape.

Foreign iron beans penetrate into the gaps of the coil and attach to them, causing a short circuit. Solution: Install protective dust curtains, repair the gap between the furnace platform and the furnace periphery, and apply insulating varnish to enhance the insulation between circuit layers.

When re-building the furnace, the iron beans and other metal materials drilled into the coil were not completely removed, causing a short circuit. Solution: Remove iron beans and other metal objects that can easily cause short circuits.

Adhesive liquid

The furnace lining was not compacted when repaired. Solution: Use correct tamping methods and replace furnace building tools.

Improper sintering (residual moisture, incomplete sintering) follows the sintering process and uses anhydrous boric acid, adding an appropriate amount.

Mixed with foreign matter. Solution: It is strictly forbidden to mix foreign matter into the

Repairing refractory materials is inappropriate. Solution: select and mix repair materials

Used for too long. Solution: Check the furnace diameter and height once a week, control the age of the furnace, and build the furnace again

Furnace lining cracked. Solution: Repair or rebuild the furnace according to cracks

Transformer failure

The oil temperature rises and heats itself (under load). Solution: Check the oil regularly and perform gas analysis on the insulating oil.

Deterioration (mixed with moisture, natural deterioration, etc.) causes a decrease in pressure resistance. Solution: Check the air volume of the cooling fan to see if there is any blockage.

Capacitor burned out and broken down

The oil temperature rises and heats itself (under load). Solution: Remove and replace. If the voltage drops during alarm, please pay attention to the operation and do not exceed the temperature set value.

The pressure resistance decreases due to oil oxidation, natural deterioration, etc. Solution: Check the cooling air volume and whether there is any blockage, and conduct regular inspections of the appearance once a month (Zhengzhou Gou's electromagnetic induction heating equipment manufacturer reminds you to pay special attention in summer).

Liquid iron leakage detector

The circuit is short. Solution: Replace

Bad contact points. Solution: Check the contact points of the molten iron leakage detector once a week and check once a month.

Busbar connection part

The busbar fastening part has poor contact. Solution: Adjust power factor or phase balance.

Power factor or phase balance imbalance. Solution: Adjust power factor or phase balance

Mechanical phase short circuit. Solution: Repair and replace