Introduction of energy-saving series one-to-two induction melting furnace :

The three- ton one-to-two induction melting furnace is a three- ton inverter induction melting furnace in series . It can be smelted simultaneously with two medium-frequency induction heating furnaces. It can also be smelted by one induction melting furnace and the other induction melting furnace can be controlled by the required temperature Casting or insulation. (It is called a two- ton, three- ton induction melting furnace. ) Users can choose according to their needs.

The three- ton one-to-two induction melting furnace consists of a 12- pulse rectifier power transformer, a 12- pulse intermediate frequency power supply, and two three- ton electric furnace bodies. A set of intermediate frequency power supplies power to the two electric furnaces for melting.

3 tons one to two induction melting furnace working mode :

Smelting of two furnaces at the same time

One set of furnace body for smelting production, the other set of furnace body insulation

One set of furnace body is smelted and the other set is used

First, one for two induction melting furnace main equipment function, configuration and technical description:

1 , KYN28-12 type high-voltage cabinet (optional)

High-voltage cabinet is a hand-mounted switchgear

The high voltage cabinet is composed of VS1-12 vacuum circuit breaker, lightning arrester, high voltage isolating switch, voltage transformer, current transformer, transformer temperature display, and gas protection.

Equipped with time-sharing meters, power factor meters, voltmeters, and ammeters on the high voltage cabinet

2. Rectifier transformer (optional)

Rectifier transformer is used to reduce the primary high voltage to the input voltage suitable for intermediate frequency power supply. It adopts a special high-impedance oil-immersed self-cooling rectifier transformer. S11 type high-performance three-phase oil-immersed distribution transformer 2500KVA

    This rectifier transformer generally adopts the Y / d11 , Y0 connection group mode. The secondary output is two sets, one of which is a Y -type connection, and the other output is a d11 -type connection, so that the phase of the two sets of outputs will The difference of 30 ° from each other forms a 12- pulse rectification method. Compared with the six-pulse rectification, this rectification method can effectively suppress the 5th and 7th harmonics and reduce the interference of harmonic components on the power grid. Therefore, this rectifier transformer is used in large electric furnaces.

Parameters of 12- pulse rectifier power transformer:

Note: There should be no-load voltage regulating switch on the high voltage side of the transformer. The voltage can be adjusted in five steps: -10 %, -5 %, 0 , + 5 %, + 10 %.

3 , 3 tons one to two induction melting furnace main technical parameter configuration

 Advantages of 3 tons one tow two double power induction melting furnaces :

1. One-to-two induction melting furnace adopts series resonance circuit. The electric efficiency of the furnace is much higher than the parallel inverter electric furnace. It has one-to-two function. One power supply can supply two electric furnaces at the same time. Fast and power saving.

2. The control system circuit board and various sensors are installed in a shielded room, which is isolated from high-voltage high-current copper busbars and power devices to avoid strong electromagnetic field interference. The circuit board works in a closed and clean environment to increase the service life of the circuit board. The control system is stable and reliable, and the operation of the furnace is simple and easy. Under any load condition, including full furnace charge, the startup success rate of the freezing furnace is 100 %.

3. The rectifier bridge adopts thyristor, which is used as an electronic switch to quickly cut off the DC power supply during soft start and inverter failure. When the electric furnace is running, it does not need to adjust the voltage and works in the fully open state, so it has a high power supply. power factor of 0.96 , thereby reducing the power supply capacity, the full open state operation of the power supply interference reduced zui small limits.

4 , the control circuit has a regulation system and a fault diagnosis display system

5 . The one-to-two induction melting furnace adopts an integrated structure for operation, which occupies less land, can reduce the capacity of the high-voltage transformer by half, and greatly reduces the investment in the transformer room. All electrical components and matching capacitors are installed in the cabinet to form an integrated power supply for easy installation.

2. Water-cooling equipment of 3 tons, one drag and two induction melting furnaces : (optional)

According to your own situation, you can also buy or build your own cooling pool to eliminate the HRBL-150T closed circulation cooling tower.

You can build a pool at the production site and use a water pump to circulate water to cool the 3 ton, one tow, two induction melting furnace , or you can choose a complete set of combined cooling equipment. It is recommended to use HRBL-150T closed circulation cooling tower, which can save a lot of production area. Circulating water cooling 3 tons one to two induction melting furnace technical parameters are as follows:

 感应熔炼炉 ：http : //www.songdaokeji.com