CN103491663B - Channel induction furnace opens molten supply unit - Google Patents
Channel induction furnace opens molten supply unit Download PDFInfo
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- CN103491663B CN103491663B CN201310470110.XA CN201310470110A CN103491663B CN 103491663 B CN103491663 B CN 103491663B CN 201310470110 A CN201310470110 A CN 201310470110A CN 103491663 B CN103491663 B CN 103491663B
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- 230000006698 induction Effects 0.000 title claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000033228 biological regulation Effects 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- General Induction Heating (AREA)
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Abstract
The present invention relates to induction heating channel induction furnace technical field, molten supply unit is opened in particular to a kind of channel induction furnace, device comprises induction voltage regulator, switch switching unit, control and display unit, frequency converter and pressure regulation drive motors, the inductor coil L two ends Shunt compensation capacitor C of channel induction furnace, factory power power supply and heating power supply are that inductor coil L powers by switch switching unit, and described switch switching unit controls the break-make of factory power power supply or heating power supply and inductor coil L; The power that control and display unit monitoring switch switch unit export also outputs signal to frequency converter, and Frequency Converter Control pressure regulation drive motors rotates thus realizes the adjustment of induction voltage regulator output voltage.Owing to adopting induction voltage regulator to regulate factory power output power of power supply here, its power output can be started from scratch and slowly be increased, and effectively prevent the disconnected ditch phenomenon caused because initial power is excessive.
Description
Technical field
The present invention relates to induction heating channel induction furnace technical field, particularly a kind of channel induction furnace opens molten supply unit.
Background technology
Namely induction furnace utilizes the Induction Heating effect of material and makes the electric furnace that heating material melts or is incubated.The AC power that induction furnace adopts has power frequency (50 or 60 hertz), intermediate frequency (150 ~ 10000 hertz) and high frequency (higher than 10000 hertz) 3 kinds.The critical piece of induction furnace has inductor, body of heater, power supply, electric capacity and control system etc.Under the alternating electromagnetism field action of induction furnace coil, internal batch produces eddy current thus reaches the effect of heating.Induction furnace can be used for melting and the insulation of material, is usually divided into channel induction furnace and coreless induction furnace two class.Channel induction furnace because of utilization rate of electrical high, melting cost is low, and is widely used.Due to the design feature of its inductor, to the quality of channel and open molten technical process and require very strict, if control bad, very easily there is disconnected ditch phenomenon, cause opening and melt unsuccessfully in channel induction furnace.Open the waste of melting and unsuccessfully not only causing channel and whole inductor, the inductor simultaneously more renewed needs expensive cost and time.
According to the connected mode having core inductor coil and compensation condenser, its supply unit can be divided into series inductive heating power and induction heating power in parallel; Wherein series inductance supply unit realizes inductor power by regulating frequency and arrives large continuous adjustment from childhood, and induction power supply device in parallel is in order to ensure the continuity of the commutation of controllable silicon electric current and load current, its minimum output power is generally about 10% of rated power, instead of increase gradually from 0%, disconnected ditch phenomenon is happened occasionally.For the load composed in parallel by building-out capacitor and induction coil, general power electronics power regulating eqiupment is difficult to the adjustment realizing power, does not also have the product of mature and reliable to have opening smoothly of core inductor molten for the continuous voltage regulating Power Regulation of this type of load to realize induction furnace at present.
Summary of the invention
The object of the present invention is to provide a kind of channel induction furnace to open molten supply unit, can open molten smoothly, avoid induction power supply in parallel to open the molten and generation of disconnected ditch phenomenon that is that cause.
For realizing above object, the technical solution used in the present invention is: a kind of channel induction furnace opens molten supply unit, this device comprises induction voltage regulator, switch switching unit, control and display unit, frequency converter and pressure regulation drive motors, the inductor coil L two ends Shunt compensation capacitor C of channel induction furnace, factory power power supply and heating power supply are that inductor coil L powers by switch switching unit, and described switch switching unit controls the break-make of factory power power supply or heating power supply and inductor coil L; The power that control and display unit monitoring switch switch unit export also outputs signal to frequency converter, and Frequency Converter Control pressure regulation drive motors rotates thus realizes the adjustment of induction voltage regulator output voltage.
Compared with prior art, there is following technique effect in the present invention: regulates factory power output power of power supply owing to adopting induction voltage regulator here, its power output can be started from scratch and slowly be increased, and effectively prevent the disconnected ditch phenomenon caused because initial power is excessive.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with Fig. 1, the present invention is described in further detail.
Consult Fig. 1, a kind of channel induction furnace opens molten supply unit, this device comprises induction voltage regulator 31, switch switching unit 32, control and display unit 33, frequency converter 34 and pressure regulation drive motors 35, the inductor coil L two ends Shunt compensation capacitor C of channel induction furnace 40, factory power power supply 10 and heating power supply 20 by switch switching unit 32 for inductor coil L powers, wherein, factory power power supply 10 is through induction voltage regulator 31, switch switching unit 32 is connected with inductor coil L, heating power supply 20 is directly connected with inductor coil L through switch switching unit 32.Described switch switching unit 32 controls the break-make of factory power power supply 10 or heating power supply 20 and inductor coil L, also namely: when normally working, by heating power supply 20 for inductor coil L provides energy; Channel induction furnace opens in molten process, by factory power power supply 10 for inductor coil L provides energy.The power that control and display unit 33 monitoring switch switch unit 32 export also outputs signal to frequency converter 34, and frequency converter 34 controls pressure regulation drive motors 35 and rotates thus the adjustment realizing induction voltage regulator 31 output voltage.
Molten in order to ensure to open smoothly, the two-phase induction voltage regulator 31 of mature and reliable is have employed in the present invention, pressure regulation drive motors 35 is driven to change relative angular displacement continuous setup output voltage between its stator and rotor by frequency converter 34, the continuous precision realizing the shunt load power be made up of building-out capacitor C and inductor coil L regulates, thus make channel induction furnace channel in effective control of opening temperature in molten process, to ensure the success of opening molten process.
Be provided with interlock in switch switching unit 32, avoid factory power power supply 10, heating power supply 20 to be connected with inductor coil L simultaneously.
Here factory power power supply 10 is not only worked opening in molten process by induction voltage regulator 31, and when heating power supply 20 breaks down without input, factory power power supply 10 also can be connected with inductor coil L, for channel induction furnace provides insulation effect.
The closed situation of switch switching unit 32 breaker in middle is understood for the ease of staff, switch connection/closure signal in described control and display unit 33 receiving key switch unit 32 also shows, the connection of switch/closed can lighting/extinguishing and represent with indicator light, these indicator lights are generally placed in control room, facilitate staff to check.
Claims (2)
1. a channel induction furnace opens molten supply unit, it is characterized in that: this device comprises induction voltage regulator (31), switch switching unit (32), control and display unit (33), frequency converter (34) and pressure regulation drive motors (35), the inductor coil L two ends Shunt compensation capacitor C of channel induction furnace (40), factory power power supply (10) and heating power supply (20) by switch switching unit (32) for inductor coil L powers, described switch switching unit (32) controls the break-make of factory power power supply (10) or heating power supply (20) and inductor coil L, the power that control and display unit (33) monitoring switch switch unit (32) export also outputs signal to frequency converter (34), and frequency converter (34) controls pressure regulation drive motors (35) and rotates thus the adjustment realizing induction voltage regulator (31) output voltage.
2. channel induction furnace as claimed in claim 1 opens molten supply unit, it is characterized in that: the switch connection/closure signal in described control and display unit (33) receiving key switch unit (32) also shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470110.XA CN103491663B (en) | 2013-10-10 | 2013-10-10 | Channel induction furnace opens molten supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470110.XA CN103491663B (en) | 2013-10-10 | 2013-10-10 | Channel induction furnace opens molten supply unit |
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| Publication Number | Publication Date |
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| CN103491663A CN103491663A (en) | 2014-01-01 |
| CN103491663B true CN103491663B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310470110.XA Active CN103491663B (en) | 2013-10-10 | 2013-10-10 | Channel induction furnace opens molten supply unit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786619B (en) * | 2016-12-26 | 2019-04-26 | 东北大学 | A power grid peak regulation system and method for induction furnace iron bath coal gasification |
| CN111219986B (en) * | 2020-03-18 | 2021-08-27 | 华冠新型材料股份有限公司 | Treatment process of induction heater for aluminum pot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842889A (en) * | 1956-06-29 | 1960-07-27 | Ohio Crankshaft Co | Improvements relating to induction melting furnaces and to inductors therefor |
| GB1398667A (en) * | 1973-03-16 | 1975-06-25 | Crescenzi G | Induction furnaces |
| CN201113803Y (en) * | 2007-06-19 | 2008-09-10 | 深圳市中传电气技术有限公司 | Output voltage automatic compensation high voltage large power frequency converter in unit series |
| CN101657048A (en) * | 2008-08-21 | 2010-02-24 | 西安诚瑞科技发展有限公司 | Variable-frequency control systems of induction furnace |
| CN203537588U (en) * | 2013-10-10 | 2014-04-09 | 铜陵金威铜业有限公司 | Melting starting power source device of channel-type induction furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202162365U (en) * | 2011-06-05 | 2012-03-14 | 杨唯加 | Electric system of continuous casting machine adopting updraw process |
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2013
- 2013-10-10 CN CN201310470110.XA patent/CN103491663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842889A (en) * | 1956-06-29 | 1960-07-27 | Ohio Crankshaft Co | Improvements relating to induction melting furnaces and to inductors therefor |
| GB1398667A (en) * | 1973-03-16 | 1975-06-25 | Crescenzi G | Induction furnaces |
| CN201113803Y (en) * | 2007-06-19 | 2008-09-10 | 深圳市中传电气技术有限公司 | Output voltage automatic compensation high voltage large power frequency converter in unit series |
| CN101657048A (en) * | 2008-08-21 | 2010-02-24 | 西安诚瑞科技发展有限公司 | Variable-frequency control systems of induction furnace |
| CN203537588U (en) * | 2013-10-10 | 2014-04-09 | 铜陵金威铜业有限公司 | Melting starting power source device of channel-type induction furnace |
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| CN103491663A (en) | 2014-01-01 |
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