CN204291433U - The electric induction heater of heating of metal part - Google Patents
The electric induction heater of heating of metal part Download PDFInfo
- Publication number
- CN204291433U CN204291433U CN201420491848.4U CN201420491848U CN204291433U CN 204291433 U CN204291433 U CN 204291433U CN 201420491848 U CN201420491848 U CN 201420491848U CN 204291433 U CN204291433 U CN 204291433U
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- Prior art keywords
- module assembly
- metalwork
- heating
- coil
- support arm
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Abstract
The utility model discloses a kind of electric induction heater of heating of metal part, cylindric module assembly of the present utility model comprises the coil windings module that some central axis around module assembly are arranged, coil windings module comprises an iron core and is wrapped in the coil on iron core along core length direction, metalwork passes its chamber along the central axis of module assembly, electric supply installation exports frequency-changing AC electricity to some coil windings modules, and coil windings produces alternating magnetic field and acts on metalwork and makes it to produce vortex flow and heat.Coil turn of the present utility model is many, air gap is little, and the ordinary copper coiling that small cross sections can be used to amass just can realize the heating of high-power high-efficiency.Because the current density in coil reduces greatly, during heating, the energy of loss in winding coil significantly reduces, and does not need to be equipped with huge Capacitor banks.The efficiency of heating surface of heater described in the utility model can reach 80%, far above the peak efficiency 65% of the current electric induction heater of circumferential coiling in the world.
Description
Technical field
The utility model relates to METAL HEATING PROCESS field, particularly a kind of electric induction heater of heating of metal part.
Background technology
In METAL HEATING PROCESS field, there is following several conventional heating techniques:
1, gas heating, utilizes the heat heating of metal that gas-firing or coal gas produce.Under this heating technique, the heating-up temperature of metal is difficult to accurate control, and not easily realizes the larger-diameter metal billet of heating, as the ingot of φ more than 12.
2, resistance furnace heating, resistance furnace take electricity as thermal source, is heat energy by electric heating element by electric energy conversion, relies on thermal radiation or thermal current convection type to heat metal in stove.In this heating technique, a large amount of energy is consumed in electric heating element as on resistance wire, and the efficiency of heating surface is lower.
3, electrical induction, traditional induction heater utilizes copper induction coil to surround aluminium bar, when alternating current is applied on induction coil, in the space that coil surrounds, produces alternating magnetic field.Alternating magnetic field is pulsed under basic frequency, and go out vortex flow in aluminium bar induced inside, therefore aluminium bar is also heated.But because induction coil has the resistance of can not ignore, when by heavy current, appreciable heat is lost on coil.And these heats produced on coil must use a large amount of cooling waters to cool coil.Such birth defect makes the energy utilization rate of traditional induction heater quite low, only has 40% to 60%.
So, be necessary to change from new visual angle traditional mode of heating, to solve current technology Problems existing.
Utility model content
The purpose of this utility model is to provide a kind of electric induction heater of heating of metal part, to solve some problems that current technology exists.
The utility model provides a kind of electric induction heater of heating of metal part, comprises a board, also comprises:
Be located at the cylindric module assembly on described board, it comprises the coil windings module that some central axis around described module assembly are arranged further, described coil windings module comprises an iron core and is wrapped in the coil on described iron core along described core length direction, the length direction of described iron core and the centerline axis parallel of described module assembly, described metalwork passes its chamber along the central axis of described module assembly;
Electric supply installation, connects described module assembly, and in order to export frequency-changing AC electricity to described some coil windings module, described coil windings produces alternating magnetic field and acts on described metalwork and makes it to produce vortex flow and heat;
Be located at the heating positioner on described board, described heating positioner is positioned at the metalwork in described module assembly cylinder chamber, makes the cylinder inwall of described metalwork and described module assembly keep predetermined gap.
As an embodiment, described some coil windings modules are evenly arranged around the central axis of described module assembly, the central axis of module assembly described in the magnetic fields point that each described coil windings module produces.
As an embodiment, described heating positioner comprises the first Hydraulic Station of being distributed in the axial two ends of described module assembly and the second Hydraulic Station, the first support arm be connected with described first Hydraulic Station piston rod, the second support arm of being connected with described second Hydraulic Station piston rod, and the bare terminal end of described first support arm and the bare terminal end of the second support arm withstand the both ends of the surface of the described metalwork being positioned at described module assembly cylinder chamber respectively inwards at the axial two ends of described module assembly.
As an embodiment, described first support arm bare terminal end and the second support arm bare terminal end are rotation bare terminal end, and they clamp described metalwork and rotate in the cylinder chamber of described module assembly.
As an embodiment, described first support arm and the second support arm are respectively under the effect of described first Hydraulic Station hydraulic cylinder and the second Hydraulic Station hydraulic cylinder, simultaneously in the same way along the axial back and forth movement of described module assembly, thus drive and describedly axially done back and forth movement by the metalwork that withstands in the cylinder chamber of described module assembly.
As an embodiment, described metalwork is non-ferromagnetic metal material, and described metalwork is aluminium or copper or magnesium alloy material.
One of the utility model advantage, to the locate mode (hydraulic pressure two ends are withstood) of metalwork in the utility model, makes the gap smaller between coil and metalwork, improves the efficiency of heating surface.Because traditional electrical induction heater is difficult to realize less gap, traditional electrical induction heater needs the conveying mechanism of tray form in the weight of the lower support metalwork of metalwork, like this in heating process, pallet body is between coil and metalwork, could hold described pallet body after making the gap enlargement between coil and metalwork, the existence of pallet body also counteracts that the transmission of electric induction in addition.In the utility model except loss of energy in coil, main energetic loss is in the process of the variable-frequency variable-voltage of electric power system.Through theory calculate, the efficiency of heating surface of this heater can reach 80%, far above the peak efficiency 65% of the current electric induction heater of circumferential coiling in the world.
The utility model advantage two, around the coil windings module arranged in the utility model, the coil turn of winding can be increased, reduce coil diameter, and then the eddy current reduced because self-induction of loop produces, current density lower in keeping coil, the heat that the resistance reducing coil itself produces when the work of energising.Traditional electrical induction heater cannot use little copper coil, because its copper conductor is the rectangle copper pipe for hollow, cooling water flows through from the space of hollow, and the copper coil that such copper conductor diameter is used far beyond the utility model is large.
The utility model advantage three, to the locate mode of metalwork in the utility model, makes the gap smaller between coil and metalwork, improves heating effect, therefore does not need electric power system to arrange capacitance group to carry out compensating power.In traditional electrical induction heater, there is very large air gap ac power supply system between coil and metalwork and can consume more reactive power, so electric power system needs huge and the capacitance group of costliness carrys out compensating power.
The utility model advantage four, heating positioner can drive metalwork in the cylinder chamber of cylindric module assembly along axis back and forth movement, make metalwork be heated like this evenly, further increase the efficiency of heating surface.
The utility model advantage five, the heating to metalwork will be realized in the utility model, relative rotational between metal and magnetic field is most important to firing rate, the efficiency of heating surface, the support arm of the heating positioner in the utility model rotates bare terminal end and metalwork can also be driven to rotate, larger relative velocity can be realized, metalwork is accelerated by the effect of alternating magnetic field, and its inside can produce larger vortex flow, can produce larger heating effect.Meanwhile, due to metalwork and High Rotation Speed, ambient air accelerate flowing, produce powerful air-cooled effect, greatly improve heat sinking function.
Accompanying drawing explanation
Fig. 1 is the structural representation of heating system one embodiment described in the utility model;
Fig. 2 is the structural representation of another embodiment of heating system described in the utility model;
Fig. 3 is tubular module assembly structure chart described in the utility model.
Wherein, electric induction heater 100, board 110, module assembly 120, coil windings module 121, iron core 122, coil 123, metalwork 130, heating location-plate 140, first Hydraulic Station 150, second Hydraulic Station 151, first support arm 152, second support arm 153, bare terminal end 154.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with drawings and embodiments.
Two embodiments of the present utility model respectively see Fig. 1 and Fig. 2, Fig. 1 and Fig. 2.The utility model provides a kind of electric induction heater 100 of heating of metal part 130, comprises a board 110, cylindric module assembly 120, electric supply installation, heating positioner, particularly:
Be located at the cylindric module assembly 120 on described board 110, see Fig. 3, it comprises the coil windings module 121 that some central axis around described module assembly 120 are arranged further, described coil windings module 121 comprises an iron core 122 and is wrapped in the coil 123 on described iron core 122 along described iron core 122 length direction, the length direction of described iron core 122 and the centerline axis parallel of described module assembly 120, described metalwork 130 passes its chamber along the central axis of described module assembly 120.As an embodiment, described some coil windings modules 121 are evenly arranged around the central axis of described module assembly 120, these some coil windings modules 121 around formation tubular, the central axis of module assembly 120 described in the magnetic fields point that each described coil windings module 121 produces.
Electric supply installation (not shown in FIG.), connect described module assembly 120, in order to export frequency-changing AC electricity to described some coil windings modules 121, described coil 123 winding produces alternating magnetic field and acts on described metalwork 130 and makes it to produce vortex flow and heat.What adopt here is frequency-changing AC electricity, adopts frequency-changing AC electricity to make heating time, heating quality etc. adjustable, improves heating effect.Constant frequency AC can certainly be adopted, but its heating effect can reduce.
Be located at the heating positioner on described board 110, described heating positioner rises effect is the metalwork 130 being positioned at described module assembly 120 chambeies, makes described metalwork 130 keep predetermined gap with the cylinder inwall of described module assembly 120.Heating positioner can be heating location-plate 140 in Fig. 1, and heating location-plate 140 1 aspect can stuck-module assembly 120, on the other hand also can one end of fixing metal part 130.Heating positioner also can be the Hydraulic Station positioner in Fig. 2, metalwork 130 is withstood by the first Hydraulic Station 150 and the second Hydraulic Station 151, module assembly 120 is arranged on the two pieces of mounting panels in left and right, and metalwork 130 is successively through left mounting panel, the cylinder chamber of module assembly 120, right mounting panel.And keep gap with them.
See Fig. 2, as an embodiment, described heating positioner comprises the first Hydraulic Station 150 of being distributed in the described axial two ends of module assembly 120 and the second Hydraulic Station 151, the first support arm 152 be connected with described first Hydraulic Station 150 piston rod, the second support arm 153 of being connected with described second Hydraulic Station 151 piston rod, and the bare terminal end 154 of described first support arm 152 and the bare terminal end 154 of the second support arm 153 withstand the both ends of the surface of the described metalwork 130 being positioned at described module assembly 120 chambeies respectively inwards at the axial two ends of described module assembly 120.As an embodiment, the bare terminal end 154 of described first support arm 152 and the bare terminal end 154 of the second support arm 153 are rotation bare terminal end, and they clamp described metalwork 130 and rotate in the cylinder chamber of described module assembly 120.Here rotation bare terminal end specific implementation, can be the rotating clamp fastener etc. that current industrial circle adopts, also rotate while realization is to Workpiece clamping.
See Fig. 2, as an embodiment, described first support arm 152 and the second support arm 153 are respectively under the effect of described first Hydraulic Station 150 hydraulic cylinder and the second Hydraulic Station 151 hydraulic cylinder, simultaneously in the same way along the axial back and forth movement of described module assembly 120, thus drive and describedly axially done back and forth movement by the metalwork 130 that withstands in the cylinder chamber of described module assembly 120.In the present embodiment, heating positioner employs the mode of hydraulic pressure location, obviously, also can adopt other locate modes, such as adopts lead screw transmission mode to substitute Hydraulic Station, also can arrange spring to realize clamping and positioning to metalwork 130 at described bare terminal end 154.
As an embodiment, described metalwork 130 is nonferromugnetic material, and metalwork 130 can be aluminium or copper or magnesium alloy inner bag.Adopt this material, because it belongs to nonferromagnetic, when it rotates, can not obstruction be produced, make rotation more smooth and easy.
During heater described in the utility model work, electric power system under the instruction of control system for coil provides the alternating current of different frequency.The alternating magnetic field that alternating current produces at coil is also effectively directed on metalwork (ingot) by iron core.At this moment, vortex flow can be induced to the alternating magnetic field resisting the generation of each coil windings in ingot.These vortex flows can heating of metal ingot effectively.Simultaneously, the two ends of ingot are clamped by support arm, under the driving of hydraulic pressure, ingot can move along cylinder axis in the cylinder chamber of module assembly 120, ensure that it is heated properly at length direction by the position controlling ingot thermal treatment zone in cylinder chamber, or according to certain axial temperature curve, exact heat is carried out to ingot.
Those of ordinary skill in the art will be appreciated that, above execution mode is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of above execution mode, modification.
Claims (7)
1. an electric induction heater for heating of metal part, comprises a board, it is characterized in that, also comprise:
Be located at the cylindric module assembly on described board, it comprises the coil windings module that some central axis around described module assembly are arranged further, described coil windings module comprises an iron core and is wrapped in the coil on described iron core along described core length direction, the length direction of described iron core and the centerline axis parallel of described module assembly, described metalwork passes its chamber along the central axis of described module assembly;
Electric supply installation, connects described module assembly, and in order to export frequency-changing AC electricity to described some coil windings module, described coil windings produces alternating magnetic field and acts on described metalwork and makes it to produce vortex flow and heat;
Be located at the heating positioner on described board, described heating positioner is positioned at the metalwork in described module assembly cylinder chamber, makes the cylinder inwall of described metalwork and described module assembly keep predetermined gap.
2. heater as claimed in claim 1, it is characterized in that, described some coil windings modules are evenly arranged around the central axis of described module assembly, the central axis of module assembly described in the magnetic fields point that each described coil windings module produces.
3. heater as claimed in claim 1 or 2, it is characterized in that, described heating positioner comprises the first Hydraulic Station of being distributed in the axial two ends of described module assembly and the second Hydraulic Station, the first support arm be connected with described first Hydraulic Station piston rod, the second support arm of being connected with described second Hydraulic Station piston rod, and the bare terminal end of described first support arm and the bare terminal end of the second support arm withstand the both ends of the surface of the described metalwork being positioned at described module assembly cylinder chamber respectively inwards at the axial two ends of described module assembly.
4. heater as claimed in claim 3, it is characterized in that, described first support arm bare terminal end and the second support arm bare terminal end are rotation bare terminal end, and they clamp described metalwork and rotate in the cylinder chamber of described module assembly.
5. heater as claimed in claim 4, it is characterized in that, described first support arm and the second support arm are respectively under the effect of described first Hydraulic Station hydraulic cylinder and the second Hydraulic Station hydraulic cylinder, simultaneously in the same way along the axial back and forth movement of described module assembly, thus drive and describedly axially done back and forth movement by the metalwork that withstands in the cylinder chamber of described module assembly.
6. heater as claimed in claim 5, it is characterized in that, described metalwork is non-ferromagnetic metal material.
7. heater as claimed in claim 6, is characterized in that, described metalwork is aluminium or copper or magnesium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491848.4U CN204291433U (en) | 2014-08-28 | 2014-08-28 | The electric induction heater of heating of metal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491848.4U CN204291433U (en) | 2014-08-28 | 2014-08-28 | The electric induction heater of heating of metal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204291433U true CN204291433U (en) | 2015-04-22 |
Family
ID=52874557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491848.4U Withdrawn - After Issue CN204291433U (en) | 2014-08-28 | 2014-08-28 | The electric induction heater of heating of metal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204291433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185326A (en) * | 2014-08-28 | 2014-12-03 | 上海锐漫能源科技有限公司 | Electric induction heater for heating metal part |
| CN106941739A (en) * | 2017-05-18 | 2017-07-11 | 湖南中科电气股份有限公司 | A kind of inductor of continuous heating |
| CN112423416A (en) * | 2020-11-23 | 2021-02-26 | 江西联创光电超导应用有限公司 | Novel high-temperature superconducting induction heating device |
-
2014
- 2014-08-28 CN CN201420491848.4U patent/CN204291433U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185326A (en) * | 2014-08-28 | 2014-12-03 | 上海锐漫能源科技有限公司 | Electric induction heater for heating metal part |
| CN104185326B (en) * | 2014-08-28 | 2016-07-06 | 上海锐漫能源科技有限公司 | Electric induction heater for heating metal parts |
| CN106941739A (en) * | 2017-05-18 | 2017-07-11 | 湖南中科电气股份有限公司 | A kind of inductor of continuous heating |
| CN112423416A (en) * | 2020-11-23 | 2021-02-26 | 江西联创光电超导应用有限公司 | Novel high-temperature superconducting induction heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |