3T medium frequency induction heating melting furnace solution

First, the classic line is generally parallel

First, equipment configuration and quotation:

Medium frequency furnace main components supporting manufacturers (for famous manufacturers)

1. Power cabinet:

(1) Main circuit breaker Shanghai People's Electric Appliance Factory

(2) Rectifier thyristor Hubei Xiangfan “岘峰” brand

(3) Inverter thyristor Xiangfan, Hubei "岘峰" card

(4) The main control board SCR-9.6A homemade

(5) Buttons, indicators, etc. Chint

(6) Protection of thyristor resistors and capacitors 794 and 795 plants

(7) copper row   Luoyang copper

2. Electric heating capacitor Jiande Capacitor Factory RFM1.2-2000-0.5S           

3. Sensor :

(1) Induction coil copper tube Luoyang copper 30*60*4

(2) Epoxy board                Zhejiang

Second, the progress line super fast melting energy-saving series line

Second, water cooling equipment: (optional)

The water tank can be built at the production site, and the water can be circulated by the water pump to cool the equipment. A complete set of combined cooling equipment can also be used. The FSS-600 closed circulation cooling tower is recommended to save a lot of production site space. The technical parameters of the circulating water cooling equipment are as follows:

Third, the transformer: S11 three-phase oil-immersed distribution transformer (S11-2500-10/0.95)

Product introduction: Oil-immersed transformer is a low-loss series with international advanced level. It has obvious energy-saving effect and can be widely used in urban and rural industrial and agricultural power grids. Its core adopts the new process of step-welding (Step-Lap), which improves the no-load performance and reduces the noise.

Fourth, the classic line common parallel equipment introduction:

1. The power supply adopts parallel resonant circuit, the control circuit is fully integrated, and the starting power supply adopts zero voltage soft start. The operation is very convenient, stable and reliable, long time without failure, convenient maintenance and low maintenance cost.

2 , the power supply has overvoltage, overcurrent, phase loss, undervoltage, under water pressure, cooling water temperature over limit alarm protection and other functions, safe and reliable.

3 , stable operation at the right power, fast melting speed, high production efficiency.

4 , using three-phase full-bridge rectification, low harmonics, no interference to the power grid, while the transformer does not heat, the loss is extremely low.

5 , power saving when working, water saving, small size, light weight, safe to use, a wide range of uses.

Heating characteristics:

1. The smelting process is stable and the casting has high mechanical strength;

2 , less oxidation loss, can achieve non-oxidative smelting, reduce melting loss;

3 , the iron liquid itself has electromagnetic stirring effect, the metal composition is uniform, can smelt various processing chips and fine scraps, reduce the cost;

4. Reduce environmental pollution;

5 , the power density is large, the melting speed is fast, and the melting is convenient;

6 , the operation is flexible and convenient, the frequency can be selected;

7. The cost of civil works is small;

8 , superb coil design, high-quality thick-walled copper tube, through the reasonable choice of the inter-turn distance of the induction coil, the induction coil has the highest conversion efficiency, the smallest resistance, more energy can be used for melting, heating, high strength, the coil is not easy to occur Damage due to arcing and expansion forces.

V. Introduction to energy-saving series line equipment:

Features: Energy saving effect is remarkable

1. High power factor operating characteristics with a power factor of 0.95 . efficient. Constant power output, power output is controlled by constant. During the melting process, when the load and temperature change, the load is always full power output, which effectively shortens the melting time.

Parallel frequency inverter technology using electric average power factor of 0.85, in series inverter technology power factor 0.95

2. Compared with other circuits, the current of the load circuit is 10-12 times smaller, which can save 3% of running power consumption .

3, no need for large-capacity filter reactors can save 1% power consumption

4. Each induction melting furnace is independently powered by a group of inverters. It is not necessary to install a large current to change the furnace switch to save 1% of power consumption .

5. In series inverter, there is no power concave part in the running power characteristic curve, that is, the power loss part makes the smelting time significantly shortened, which increases the output and saves electricity consumption.

Sixth, installation and commissioning:

Please first construct the foundation according to our foundation and layout structure diagram, and install the furnace body and power supply according to the drawings and instructions. The materials required for the waterway and circuit are fully prepared. Our company has a special person to guide the equipment installation and is responsible for it. Commissioning, free on-site operation training.