CN108941338B - Induction heating leveling integral structure - Google Patents
Induction heating leveling integral structure Download PDFInfo
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- CN108941338B CN108941338B CN201711252161.XA CN201711252161A CN108941338B CN 108941338 B CN108941338 B CN 108941338B CN 201711252161 A CN201711252161 A CN 201711252161A CN 108941338 B CN108941338 B CN 108941338B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 86
- 230000006698 induction Effects 0.000 title claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 144
- 238000001816 cooling Methods 0.000 claims abstract description 114
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 36
- 239000003990 capacitor Substances 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000012937 correction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000005674 electromagnetic induction Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000075 skin burn Toxicity 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to an induction heating leveling integral structure, which is characterized in that: the system comprises a control system, a water cooling system and an execution system; the whole induction leveling system integrates three energy forms of electromagnetic heat, and the rectification, filtering and inversion electric energy is transmitted to the electromagnetic induction heating energy converter to be converted into magnetic energy by controlling the power regulator and the frequency converter, so that eddy current is generated to finish leveling; compared with common induction heating leveling equipment, the equipment has the characteristics of small volume, light weight, easy movement and wide operation range; in addition, the heating device has the characteristics of high heating efficiency, high heating speed and energy conservation; the defects of a single constant current power supply and a Shan Heng power supply are overcome, and the advantages of the single constant current power supply and the Shan Heng power supply are maintained; compared with the prior art, the water cooling system has the advantages of simple structure, independent water cooling channels, simple design, convenient installation and convenient popularization: in addition, the water cooling effect is obvious, and each water cooling channel independently cools the heating area of the component, so that the main heating area is cooled, and the cooling effect is direct and effective.
Description
Technical Field
The invention relates to the field of high-frequency induction heating, in particular to an induction heating leveling integral structure.
Background
At present, ship and ocean engineering structures are mainly connected by adopting a fusion welding process, and uneven local heating of steel by welding arcs inevitably causes stress and deformation of the ship and ocean engineering structures. Because the ship and ocean engineering structure is large in size and mass, mechanical leveling deformation cannot be adopted, and leveling is mainly carried out by means of a fire machine at present. The initiating explosive device leveling deformation process has various defects, such as long heating time, easy overburning when leveling steel plates with large thickness, high requirements on experience and skills of operators, poor leveling effect stability and poor consistency; on the other hand, toxic gas and smoke dust can be generated in the leveling process to pollute the environment, and the acetylene and liquefied gas have poor safety.
The high-frequency induction heating technology is a novel heating method which is rapidly developed in recent years, and compared with the traditional flame-water cooling heating, the high-frequency induction heating technology has the advantages of high efficiency, cleanliness, easiness in operation, safety and no pollution, so that the high-frequency induction heating technology has a wide application prospect in the industrial field; compared with the initiating explosive device leveling, the induction heating leveling has the advantages that the temperature is fast, the heat input is accurate and controllable, the mechanized operation is realized, the leveling workload is reduced by 80%, the leveling quality is obviously improved, and the working environment of an operator is improved; eliminates the potential safety hazards of harmful smoke, easy skin burn, inflammability and explosiveness caused by flame heating.
In the future, the induction heating leveling process is inevitably applied to the construction of marine engineering structures.
Disclosure of Invention
The invention aims to solve the technical problem of providing the integrated structure which can realize long-distance transmission, is simple to install, convenient to control and good in electromagnetic compatibility and can sense heating and leveling.
In order to solve the technical problems, the technical scheme of the invention is as follows: the induction heating leveling integral structure is characterized in that: the system comprises a control system, a water cooling system and an execution system;
the control system comprises a main circuit, a driving circuit and a control circuit, wherein the main circuit, the driving circuit and the control circuit form a complete closed-loop control system, the control circuit generates a driving signal to be input to the driving circuit after operation and processing of feedback quantity collected by the main circuit and given quantity set by a user, and the driving circuit generates driving pulses to control the on and off of the main circuit;
the water cooling system comprises a cooler, a transformer water cooling channel, a capacitor water cooling channel, a reactor water cooling channel, an IGBT water cooling channel and an induction heating head water cooling channel; the transformer water cooling channel, the capacitor water cooling channel, the reactor water cooling channel, the IGBT water cooling channel and the induction heating head water cooling channel are connected in parallel on the cooler through the flow channels to cool each element singly and independently;
the execution system is a mobile trolley, and a coaxial transformer and an electromagnetic transducer connected to the coaxial transformer are arranged in the mobile trolley; one end of the mobile trolley is provided with a correction device, the other end of the mobile trolley is fixedly connected with a push rod through a push rod support, the upper end of the push rod is provided with a manual control box, and the outer end face of the manual control box is respectively provided with a switch button and a correction button.
Further, the main circuit comprises a piezoresistor overvoltage clamping circuit, a three-phase rectifying circuit, a filter circuit, a voltage regulating chopper circuit and an RLC filter circuit; the sensitive resistor overvoltage clamping circuit, the three-phase rectifying circuit, the filter circuit, the voltage regulating chopper circuit and the RLC filter circuit are connected in sequence; the full-bridge inverter circuit formed by the IGBT module is arranged in the voltage-regulating chopper circuit; the output end of the full-bridge inverter circuit is sequentially connected with a coaxial transformer and an induction heating head in series; the coaxial transformer and the induction heating head form a moving heater.
Further, the control circuit comprises a control panel, a main control board and a power supply board; the control panel is respectively connected with the main control panel and the power supply panel, and the power supply panel is connected with the main control panel; the main control board is connected in series with the driving circuit, and the driving circuit is connected with the piezoresistor overvoltage clamping circuit, the three-phase rectifying circuit and the filter circuit to form a power regulator; the driving circuit is also connected to an IGBT module full-bridge inverter circuit arranged in the voltage-regulating chopper circuit to form a frequency converter.
Furthermore, a piezoresistor overvoltage clamping circuit, a three-phase rectifying circuit and a filtering circuit in the power regulator are provided with open-phase detection sensors connected with a main control board; the voltage-regulating chopper circuit is provided with a first overcurrent sensor and a short-circuit sensor which are connected with the main control board; a voltage regulating plate connected with a main control board is arranged on the full-bridge inverter circuit in the frequency converter; the input end on the RLC filter circuit is provided with a second overcurrent sensor, and the output end on the RLC filter circuit is provided with a current feedback sensor.
Further, the open-phase detection sensor, the first overcurrent sensor, the short-circuit sensor and the second overcurrent sensor transmit fault signals to the main control board; the current feedback sensor and the voltage regulating plate respectively transmit a current feedback signal and a voltage feedback signal to the main control board.
Further, the transformer water cooling channel and the reactor water cooling channel are wound on the iron core, water is supplied to the inside of the transformer water cooling channel and the inside of the reactor water cooling channel, and water nozzles are arranged at the water inlet and outlet ends of the transformer water cooling channel and the reactor water cooling channel;
the capacitor water cooling channel is used for cooling the capacitor through a cooling plate paved on the surface of the capacitor, and is arranged on the cooling plate in an S shape;
the IGBT water cooling channel is a through hole which is perpendicular to the thickness direction of a heat conducting plate and is provided with circulating flow; a plurality of plugging points are arranged on the through holes, so that circulating runners are formed between the through holes, and the through holes become IGBT water cooling channels;
the induction heating head water cooling channel comprises a first water inlet, a second water inlet, a first water return port, a second water return port, a primary winding, a central tube and an outer barrel; the two poles of the primary winding are respectively connected to the second water return port and the second water inlet; the two electrode contacts on the primary winding are respectively electrically connected with the central tube and the outer cylinder; the central tube and the outer cylinder form a secondary winding, and the central tube is electrically connected with the outer cylinder.
Further, the transformer water cooling channels are two water cooling loops, and comprise a first transformer water cooling loop and a second transformer water cooling loop; the cooling water in the first transformer water cooling loop enters the outer barrel through a first water inlet, the first water inlet is electrically isolated from the outer barrel, the cooling water in the outer barrel enters the movable heater through a channel of the primary winding, a large amount of heat is carried away from the movable heater after flowing through the movable heater, the cooling water enters the central pipe through the channel of the primary winding, and the primary winding is electrically connected with the central pipe and has the same waterway; and cooling water in the water cooling loop of the second transformer enters the primary winding through the second water inlet, the primary winding is wound on the magnetic core, and after heat of the magnetic core and the primary winding is taken away, the cooling water flows back to the first water return port through the primary winding by the other pole on the primary winding.
Further, the electromagnetic transducer comprises a rectangular induction heating energy input frame, an induction heating strip which is parallel to the rectangular induction heating energy input frame and extends along the long axis direction of the rectangular induction heating energy input frame is fixedly connected to the inner center of one end of the rectangular induction heating energy input frame, and a gap is reserved between one end of the induction heating strip and the rectangular induction heating energy input frame.
Further, the push rod support comprises push rod support side plates which are symmetrically arranged and a push rod support top plate which is connected with the two push rod support side plates, the push rod support side plates are fixedly connected with the movable trolley through bolts, and a plurality of adjusting holes which are distributed at intervals are formed in one end side plate of the connecting section of the push rod support side plates and the movable trolley.
The invention has the advantages that:
1) The whole induction leveling system integrates three energy forms of electromagnetic heat, the power regulator and the frequency converter are controlled by the man-machine control system, the electric energy after rectification, filtering and inversion is transmitted to the electromagnetic induction heating energy converter through the cable assembly to be converted into magnetic energy, and eddy current is generated on the steel plate to be leveled, so that Joule heat is generated to enable the temperature of the steel plate to rise rapidly, and the leveling effect is achieved;
2) Compared with common induction heating leveling equipment, the invention has the characteristics of small volume, light weight, easy movement and wide operation range; in addition, the heating device has the characteristics of high heating efficiency, high heating speed and energy conservation; the heating process is stable, the state of a heating power supply is adjustable, and the leveling effect is good; the defects of a single constant current power supply and a Shan Heng power supply are overcome, and the advantages of the single constant current power supply and the Shan Heng power supply are maintained, so that the power supply has good practical prospect and economic benefit;
3) Compared with the prior art, the water cooling system has the advantages of simple structure, independent water cooling channels, simple design, convenient installation and convenient popularization: in addition, the water cooling effect is obvious, and each water cooling channel independently cools the heating area of the component, so that the main heating area is cooled, and the cooling effect is direct and effective.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a diagram of an induction heating leveling control system in accordance with the present invention.
FIG. 2 is a flow chart of an induction heating leveling core control according to the present invention.
Fig. 3 is a schematic diagram of an induction heating leveling master circuit according to the present invention.
Fig. 4 is a diagram showing the connection between an induction heating leveling control board and a main circuit according to the present invention.
FIG. 5 is a schematic diagram of an induction heating leveling water cooling system according to the present invention.
FIG. 6 is a schematic diagram of a capacitor water cooling channel of an induction heating leveler water cooling system of the present invention.
Fig. 7 is an IGBT water cooling channel of an induction heating leveler water cooling system of the invention.
FIG. 8 shows a blocked IGBT water cooling channel of the water cooling system of the induction heating leveler
FIG. 9 is a diagram of a transformer water cooling channel of an induction heating leveler water cooling system of the present invention.
Fig. 10 is a perspective structure diagram of an induction heating leveling trolley according to the present invention.
Fig. 11 is a diagram showing the structure of an electromagnetic transducer of an induction heating leveling trolley according to the present invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
An induction heating leveling overall structure as shown in fig. 1 to 11 includes a control system 1, a water cooling system 2, and an execution system 3.
The control system 1 comprises a main circuit 11, a driving circuit 12 and a control circuit 13, wherein the main circuit 11, the driving circuit 12 and the control circuit 13 form a complete closed-loop control system, and the control circuit 13 generates a driving signal to be input into the driving circuit 12 after operation and processing of a feedback quantity collected by the main circuit 11 and a given quantity set by a user, and the driving circuit 12 generates driving pulses to control the on and off of the main circuit 11.
The water cooling system 2 comprises a cooler 21, a transformer water cooling channel 22, a capacitor water cooling channel 23, a reactor water cooling channel 24, an IGBT water cooling channel 25 and an induction heating head water cooling channel 26; the transformer water cooling channel 22, the capacitor water cooling channel 23, the reactor water cooling channel 24, the IGBT water cooling channel 25 and the induction heating head water cooling channel 26 are connected in parallel on the cooler 21 through flow channels to cool each element singly and independently.
The execution system 4 is a mobile trolley, and a coaxial transformer 41 and an electromagnetic transducer 42 connected to the coaxial transformer 41 are arranged in the mobile trolley; one end of the mobile trolley is provided with a correction device 43, the other end of the mobile trolley is fixedly connected with a push rod 44 through a push rod bracket, the upper end of the push rod 44 is provided with a manual control box 45, and the outer end face of the manual control box 45 is respectively provided with a switch button and a correction button.
The main circuit 11 comprises a piezoresistor overvoltage clamping circuit 111, a three-phase rectifying circuit 112, a filter circuit 113, a voltage regulating chopper circuit 114 and an RLC filter circuit 115; the piezoresistor overvoltage clamping circuit 111, the three-phase rectifying circuit 112, the filter circuit 113, the voltage regulating chopper circuit 114 and the RLC filter circuit 115 are sequentially connected; the voltage-regulating chopper circuit 114 is provided with a full-bridge inverter circuit formed by IGBT modules; the output end of the full-bridge inverter circuit is sequentially connected with a coaxial transformer and an induction heating head in series; the coaxial transformer and the induction heating head form a moving heater.
The control circuit 13 includes a control panel 131, a main control board 132, and a power supply board 133; the control panel 131 is respectively connected with the main control panel 132 and the power supply panel 133, and the power supply panel 133 is connected with the main control panel 132; the main control board 132 is connected in series with the driving circuit 12, and the driving circuit 12 is connected with the piezoresistor overvoltage clamping circuit 111, the three-phase rectifying circuit 112 and the filter circuit 113 to form a power regulator; the driving circuit 12 is also connected to an IGBT module full-bridge inverter circuit provided in the voltage regulation chopper circuit 114 to form a frequency converter.
The piezoresistor overvoltage clamping circuit 111, the three-phase rectifying circuit 112 and the filter circuit 113 in the power regulator are provided with open-phase detection sensors connected with the main control board 132; the voltage-regulating chopper circuit 114 is provided with a first overcurrent sensor and a short-circuit sensor which are connected with the main control board 132; a voltage regulating plate connected with the main control board 132 is arranged on the full-bridge inverter circuit in the frequency converter; the input end of the RLC filter circuit 115 is provided with a second overcurrent sensor, and the output end of the RLC filter circuit 115 is provided with a current feedback sensor.
The open-phase detection sensor, the first overcurrent sensor, the short-circuit sensor and the second overcurrent sensor transmit fault signals to the main control board; the current feedback sensor and the voltage regulating plate respectively transmit a current feedback signal and a voltage feedback signal to the main control board.
The transformer water cooling channel 22 and the reactor water cooling channel 24 are wound on the iron core, water is supplied to the inside of the transformer water cooling channel 22 and the reactor water cooling channel 24, and water nozzles are arranged at the water inlet and outlet ends of the transformer water cooling channel 22 and the reactor water cooling channel 24.
The capacitor water cooling channel 23 cools the capacitor by a cooling plate 231 laid on the surface of the capacitor, and the capacitor water cooling channel 23 is disposed on the cooling plate in an S shape.
The IGBT water cooling channel 25 is a through hole through which circulation flow is provided in a direction perpendicular to the thickness direction of a heat conductive plate 251; a plurality of plugging points are arranged on the through holes, so that circulating runners are formed between the through holes to form an IGBT water cooling channel 25;
the induction heating head water cooling channel 26 comprises a first water inlet 261, a second water inlet 262, a first water return port 263, a second water return port 264, a primary winding 265, a central tube 266 and an outer barrel 267; the two poles of the primary winding 265 are respectively connected to the second water return port 264 and the second water inlet 262; the two electrode contacts on the primary winding 265 are also respectively electrically connected with the central tube 266 and the outer tube 267; the center tube 266 forms a secondary winding with the outer tube 267 and the center tube 266 is electrically connected to the outer tube 267.
The transformer water cooling channel 26 is two water cooling loops, including a first transformer water cooling loop and a second transformer water cooling loop; cooling water in the water cooling loop of the first transformer enters the outer barrel 267 through the first water inlet 261, the first water inlet 261 is electrically isolated from the outer barrel 267, the cooling water in the outer barrel 267 enters the movable heater through a channel of the primary winding 265, a large amount of heat is carried away from the movable heater after flowing through the movable heater, the cooling water enters the central tube 266 through the channel of the primary winding 265, and the primary winding 265 is electrically connected with the central tube 266 and has the same waterway; the cooling water in the second transformer water cooling loop enters the primary winding 265 through the second water inlet 262, the primary winding 265 is wound on the magnetic core, and after taking away the heat of the magnetic core and the primary winding 265, the cooling water flows back to the first water return port 263 through the primary winding 265 by the other pole on the primary winding 265.
The electromagnetic transducer 42 includes a rectangular induction heating energy input frame 421, an induction heating strip 422 parallel to the rectangular induction heating energy input frame and extending along the long axis direction of the rectangular induction heating energy input frame 421 is fixedly connected to the inner center of one end of the rectangular induction heating energy input frame 421, and a gap is left between one end of the induction heating strip 422 and the rectangular induction heating energy input frame 421.
The push rod support comprises two symmetrically arranged push rod support side plates and a push rod support top plate connected with the two push rod support side plates, the push rod support side plates are fixedly connected with the mobile trolley through bolts, and a plurality of adjusting holes distributed at intervals are formed in one end side plate of the connecting section of the push rod support side plates and the mobile trolley.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and their equivalents.
Claims (5)
1. An induction heating leveling overall structure, its characterized in that: the system comprises a control system, a water cooling system and an execution system;
the control system comprises a main circuit, a driving circuit and a control circuit, wherein the main circuit, the driving circuit and the control circuit form a complete closed-loop control system, the control circuit generates a driving signal to be input to the driving circuit after operation and processing of feedback quantity collected by the main circuit and given quantity set by a user, and the driving circuit generates driving pulses to control the on and off of the main circuit;
the water cooling system comprises a cooler, a transformer water cooling channel, a capacitor water cooling channel, a reactor water cooling channel, an IGBT water cooling channel and an induction heating head water cooling channel; the transformer water cooling channel, the capacitor water cooling channel, the reactor water cooling channel, the IGBT water cooling channel and the induction heating head water cooling channel are connected in parallel on the cooler through the flow channels to cool each element singly and independently;
the execution system is a mobile trolley, and a coaxial transformer and an electromagnetic transducer connected to the coaxial transformer are arranged in the mobile trolley; one end of the mobile trolley is provided with a correction device, the other end of the mobile trolley is fixedly connected with a push rod through a push rod bracket, the upper end of the push rod is provided with a manual control box, and the outer end face of the manual control box is respectively provided with a switch button and a correction button;
the main circuit comprises a piezoresistor overvoltage clamping circuit, a three-phase rectifying circuit, a filter circuit, a voltage-regulating chopper circuit and an RLC filter circuit; the sensitive resistor overvoltage clamping circuit, the three-phase rectifying circuit, the filter circuit, the voltage regulating chopper circuit and the RLC filter circuit are connected in sequence; the full-bridge inverter circuit formed by the IGBT module is arranged in the voltage-regulating chopper circuit; the output end of the full-bridge inverter circuit is sequentially connected with a coaxial transformer and an induction heating head in series; the coaxial transformer and the induction heating head form a movable heater;
the transformer water cooling channel and the reactor water cooling channel are wound on the iron core, water is supplied to the inside of the transformer water cooling channel and the inside of the reactor water cooling channel, and water nozzles are arranged at two water inlet ends and two water outlet ends of the transformer water cooling channel and the reactor water cooling channel;
the capacitor water cooling channel is used for cooling the capacitor through a cooling plate paved on the surface of the capacitor, and is arranged on the cooling plate in an S shape;
the IGBT water cooling channel is a through hole which is perpendicular to the thickness direction of a heat conducting plate and is provided with circulating flow; a plurality of plugging points are arranged on the through holes, so that circulating runners are formed between the through holes, and the through holes become IGBT water cooling channels;
the induction heating head water cooling channel comprises a first water inlet, a second water inlet, a first water return port, a second water return port, a primary winding, a central tube and an outer barrel; the two poles of the primary winding are respectively connected to the second water return port and the second water inlet; the two electrode contacts on the primary winding are respectively electrically connected with the central tube and the outer cylinder; the central tube and the outer cylinder form a secondary winding, and the central tube is electrically connected with the outer cylinder;
the transformer water cooling channels are two water cooling loops and comprise a first transformer water cooling loop and a second transformer water cooling loop; the cooling water in the first transformer water cooling loop enters the outer barrel through a first water inlet, the first water inlet is electrically isolated from the outer barrel, the cooling water in the outer barrel enters the movable heater through a channel of the primary winding, a large amount of heat is carried away from the movable heater after flowing through the movable heater, the cooling water enters the central pipe through the channel of the primary winding, and the primary winding is electrically connected with the central pipe and has the same waterway; cooling water in the second transformer water cooling loop enters the primary winding through the second water inlet, the primary winding is wound on the magnetic core, heat of the magnetic core and the primary winding is taken away, and then flows back to the first water return port through the primary winding by the other pole on the primary winding;
the electromagnetic transducer comprises a rectangular induction heating energy input frame, an induction heating strip which is parallel to the rectangular induction heating energy input frame and extends along the long axis direction of the rectangular induction heating energy input frame is fixedly connected to the inner center of one end of the rectangular induction heating energy input frame, and a gap is reserved between one end of the induction heating strip and the rectangular induction heating energy input frame.
2. An induction heating leveler monolith as in claim 1 wherein: the control circuit comprises a control panel, a main control board and a power supply board; the control panel is respectively connected with the main control panel and the power supply panel, and the power supply panel is connected with the main control panel; the main control board is connected in series with the driving circuit, and the driving circuit is connected with the piezoresistor overvoltage clamping circuit, the three-phase rectifying circuit and the filter circuit to form a power regulator; the driving circuit is also connected to an IGBT module full-bridge inverter circuit arranged in the voltage-regulating chopper circuit to form a frequency converter.
3. An induction heating leveler monolith as in claim 2 wherein: the piezoresistor overvoltage clamping circuit, the three-phase rectifying circuit and the filtering circuit in the power regulator are provided with open-phase detection sensors connected with the main control board; the voltage-regulating chopper circuit is provided with a first overcurrent sensor and a short-circuit sensor which are connected with the main control board; a voltage regulating plate connected with a main control board is arranged on the full-bridge inverter circuit in the frequency converter; the input end on the RLC filter circuit is provided with a second overcurrent sensor, and the output end on the RLC filter circuit is provided with a current feedback sensor.
4. An induction heating leveler monolith as in claim 3 wherein: the open-phase detection sensor, the first overcurrent sensor, the short-circuit sensor and the second overcurrent sensor transmit fault signals to the main control board; the current feedback sensor and the voltage regulating plate respectively transmit a current feedback signal and a voltage feedback signal to the main control board.
5. An induction heating leveler monolith as in claim 1 wherein: the push rod support comprises push rod support side plates which are symmetrically arranged and a push rod support top plate which is connected with the two push rod support side plates, the push rod support side plates are fixedly connected with the movable trolley through bolts, and a plurality of adjusting holes which are distributed at intervals are formed in one end side plate of the connecting section of the push rod support side plates and the movable trolley.
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| CN201711252161.XA CN108941338B (en) | 2017-12-01 | 2017-12-01 | Induction heating leveling integral structure |
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| CN201711252161.XA CN108941338B (en) | 2017-12-01 | 2017-12-01 | Induction heating leveling integral structure |
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| CN108941338B true CN108941338B (en) | 2023-12-22 |
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| CN113145687B (en) * | 2021-04-12 | 2022-08-05 | 上海交通大学 | Automatic induction leveling integration method for ship plate welding deformation |
| CN113351685B (en) * | 2021-05-25 | 2021-12-28 | 江苏科技大学 | Integrated high-frequency intelligent leveling machine and working method thereof |
Citations (11)
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| CN106535383A (en) * | 2016-12-27 | 2017-03-22 | 珠海市松立电器有限公司 | Inductive heating head and device for vehicle maintenance |
| CN208276056U (en) * | 2017-12-01 | 2018-12-25 | 江苏科技大学 | A kind of induction heating smoothing overall structure |
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| FR2782184A1 (en) * | 1998-08-04 | 2000-02-11 | Soprano | ENERGY RECOVERY LOGIC INPUT DEVICE FOR INDUSTRIAL AUTOMATION |
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| CN201332514Y (en) * | 2008-12-31 | 2009-10-21 | 郑州科创电子有限公司 | Full air-cooling IGBT induction heating equipment |
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| CN108941338A (en) | 2018-12-07 |
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