CN202052730U - Device for removing wrappage on steel surface - Google Patents
Device for removing wrappage on steel surface Download PDFInfo
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- CN202052730U CN202052730U CN2011200962840U CN201120096284U CN202052730U CN 202052730 U CN202052730 U CN 202052730U CN 2011200962840 U CN2011200962840 U CN 2011200962840U CN 201120096284 U CN201120096284 U CN 201120096284U CN 202052730 U CN202052730 U CN 202052730U
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- electromagnetic induction
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- steel surface
- induction unit
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Abstract
The utility model discloses a device for removing wrappage on a steel surface. The device comprises a main controller, an electromagnetic induction unit and a speed sensor, wherein the main controller is connected with the electromagnetic induction unit and the speed sensor, the speed sensor is used for detecting the moving speed of the electromagnetic induction unit, the main controller is used for controlling output voltage and current according to the moving speed of the electromagnetic induction unit, and the electromagnetic induction unit is used for sliding on the steel surface and generating electromagnetic induction heat on the steel surface according to the control of the main controller. The wrappage on the steel surface is removed by the heat generated by the electromagnetic induction unit, heating depth can be accurately controlled at a position with 0.3 millimeter below the steel surface so that steel is not integrally heated, and the treatment mode has the efficiency more than ten times of that of a traditional mode, is harmless to human bodies and free of any environmental pollution.
Description
Technical field
The utility model relates to steel surface treatment process field, is meant a kind of device of removing the steel surface wrappage especially.
Background technology
In the Western countries, people estimate that corrosion reaches the 3%-4% of BNP.Only in Norway, annual just have millions of square metres surface to protect by paint.In order to obtain effect preferably, must clean and preliminary treatment painted surface.Such as: in the paint renovation and maintenance of the petroleum pipeline on boats and ships, storage tank/cabinet case, coastal waters and land,, the old lacquer and the iron rust of steel surface need be removed totally, and be done suitable surface preparation in order to reach the effect of spraying paint preferably.The flushing methods such as (water cuttves) that generally adopted sandblast, polishes and sprayed water with high pressure before the industrial quarters, perhaps several method is used in combination.
The most frequently used method is an abrasive cleaning.This method is by removing old paint and rust to surface sand-blasting or other media that is fit to.This is a kind of expensive and quite consuming time technology.The advantage of this method is to produce a coarse surface, and rough surface can bond well with fresh paint.Moreover, the employed equipment cheapness of this method, and simple to operate and be easy to the maintenance.The weak point of this method is to use a large amount of sand, can produce a large amount of dusts, and equipment weighs and the operation heaviness.And this method speed is slow, can not remove grease and other dirts, as water-soluble salt, sulfate etc.
The water spray flushing method of removing paint and rust becomes more commonly used now.The advantage of this method is a problem of having avoided relevant dust, and discarded object is seldom arranged in the method, and has removed water-soluble dirt.The deficiency of this method is apparatus expensive and is difficult to maintenance not have rough surface at steel piece surface and form, and has big water gaging spilling to come out, and needs a large amount of water, and treated side could paint after must drying up.
Grinding process does not re-use substantially, only is applicable to the local surfaces maintenance work at present.
The utility model content
The utility model provides a kind of device of removing the steel surface wrappage, can improve the efficient of removing the steel surface wrappage.
A kind of device of removing the steel surface wrappage that the utility model provides comprises: master controller, electromagnetic induction unit and velocity sensor, and described master controller links to each other with velocity sensor with described electromagnetic induction unit, wherein,
Described velocity sensor is used to survey the translational speed of described electromagnetic induction unit;
Described master controller is used for translational speed control output voltage and electric current according to described electromagnetic induction unit;
Described electromagnetic induction unit is used for sliding at described steel surface, and according to the control of described master controller, produces electromagnetic induction heat at steel surface.
Described electromagnetic induction unit comprises magnet exciting coil, the resonance circuit in parallel with described magnet exciting coil, wherein,
Described magnet exciting coil is fixed on the movable part, and has the distance of setting with steel surface.
Described movable part is roller, coaster.
Described master controller comprises:
Rectification unit is used for the alternating current of input is carried out rectification, and to the inversion unit output DC;
Inversion unit according to the control of main control unit, carries out inversion with described direct current and produces high-frequency alternating current;
Main control unit is used for the translational speed according to the electromagnetic induction unit, regulates the voltage and current of inversion unit output, and inversion unit is carried out closed-loop control.
Described rectification unit is the diode rectified three-phase circuit.
Described inversion unit is a H type IGBT inverter bridge.
In the utility model scheme, velocity sensor is used to survey the translational speed of described electromagnetic induction unit; Master controller is used for translational speed control output voltage and electric current according to described electromagnetic induction unit; The electromagnetic induction unit is used for sliding at described steel surface, and according to the control of described master controller, produces electromagnetic induction heat at steel surface.The heat of utilizing the electromagnetic induction unit to produce is removed the steel surface wrappage, and, can accurately the degree of depth that heats be controlled at the following 0.3 millimeter place of steel surface, rather than to the whole heating of iron and steel, and this processing mode has the efficient more than 10 times of traditional approach, and the person is had no injury and do not have any environmental pollution.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment device;
Fig. 2 is the schematic diagram of the rectification unit among the utility model embodiment;
Fig. 3 is the schematic diagram of the inversion unit that is made of H type IGBT inverter bridge among the utility model embodiment;
Fig. 4 is the structural representation of the electromagnetic induction unit among the utility model embodiment;
Wherein, among Fig. 1,1 is three phase mains, and 2 is master controller, and 3 is roller (roller of master controller), and 4 is the velocity sensor cable, and 5 is leader cable; 6 is velocity sensor; 7 is magnet exciting coil; 8 is roller (roller of electromagnetic induction unit); 9 is the electromagnetic induction unit; 10 is steel surface; 11 is handle.
The specific embodiment
Referring to shown in Figure 1, in order to improve the efficient of removing the steel surface wrappage, the device that the utility model is removed steel surface 10 wrappages comprises: master controller 2, electromagnetic induction unit 9 and velocity sensor 6, described master controller 2 links to each other with electromagnetic induction unit 9 with described velocity sensor 6, wherein, described velocity sensor 6 is used to survey the translational speed of described electromagnetic induction unit 9; Described master controller 2 is used for translational speed control output voltage and electric current according to described electromagnetic induction unit 9; Described electromagnetic induction unit 9 is used for sliding at described steel surface 10, and according to the control of described master controller 2, produces electromagnetic induction heats at steel surface 10.
Master controller 2 is installed on the roller 3, is connected by leader cable 5 and velocity sensor cable 4 between master controller 2 and the electromagnetic induction unit 9.
Described electromagnetic induction unit 9 comprises magnet exciting coil 7 and the resonance circuit in parallel with described magnet exciting coil 7.
For the heat energy that electromagnetic induction unit 9 is produced arrives 10 times certain thickness of steel surface equably, described electromagnetic induction unit 9 can be fixed on the movable part, this movable part is realized by roller 8 in Fig. 1, and is had the distance of setting with steel surface 10.And this roller 8 can be coaster, perhaps mobile miscellaneous part.
Described master controller 2 comprises: rectification unit, inversion unit and main control unit.Wherein,
Rectification unit is used for the alternating voltage of input is carried out rectification, and to the inversion unit output dc voltage; Inversion unit according to the control of main control unit, carries out inversion with described DC voltage and produces high-frequency alternating current; Main control unit is used for the translational speed according to the electromagnetic induction unit, regulates the voltage and current of inversion unit output, and inversion unit is carried out closed-loop control.Here, described rectification unit just can adopt the diode rectified three-phase circuit of standard.Described inversion unit can adopt H type IGBT inverter bridge.
Rectification unit can adopt the diode rectified three-phase circuit of standard, as shown in Figure 2, specifically comprises diode three-phase commutation bridge, dc capacitor and pre-charge circuit.Pre-charge circuit carried out current-limiting charge to dc capacitor before main inlet wire closes a floodgate; Alternating current is a direct current through the diode bridge rectification; Dc capacitor smooth direct current level and stored charge.
Main control unit can comprise CPU, on-site programmable gate array FPGA, signal isolated drive circuit etc.CPU can be digital signal processor (DSP), DSP monitoring rectifier bridge primary voltage U
Ac1, VD U
DcAnd average anode current I
Dc, inverter bridge outlet side voltage U
Ac2, outlet side alternating current I
Ac, output frequency f
ActAnd electromagnetic induction cell moving speed n
Rpm, trigger the switch order of controlling the inverter bridge power semiconductor, the alternating current that inverter bridge output voltage and changeable frequency change.FPGA handles logical operation, system's overcurrent-overvoltage of fast signal and protects, reaches the transmission of triggering signal between DSP and the inverter bridge fast and block processing, handles man-machine interface information interaction etc. simultaneously.
CPU monitoring inlet wire alternating voltage U
Ac1, VD U
DcAnd average anode current I
Dc, disjunction front end breaker when fault, reliably protecting Circuits System; CPU also is the control module of pre-charge circuit, run jointly close send electricity before, the capacitor of DC link need slowly charge to full voltage, avoids damaging electric capacity, or the overcurrent breakdown diode.
Inversion unit can be made of H type IGBT inverter bridge, as shown in Figure 3.The main power semiconductor of H type IGBT inverter bridge is IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor, by the compound full-control type voltage driven type power electronic devices that BJT (bipolar transistor) and MOS (insulating gate type field effect tube) form, have the advantage of low conduction voltage drop two aspects of the high input impedance of MOSFET and GTR concurrently.Therefore, main control unit can be according to outlet side alternating current I
Ac, output frequency f
ActAnd electromagnetic induction unit 9 translational speed n
Rpm, comparing the back closed-loop control with setting value, the IGBT that triggers brachium pontis and following brachium pontis on the H bridge by drive circuit forms the high-frequency alternating current that amplitude and frequency adjustable save with certain frequency and the staggered conducting of order.
The electrical schematic diagram of electromagnetic induction unit 9 can change the alternating current of voltage and frequency as shown in Figure 4, acts on mainly in the load that impedance and eddy current loop internal resistance by magnet exciting coil 7 constitute.L is the induction reactance of magnet exciting coil 7, and R is the impedance of magnet exciting coil 7 and the impedance of eddy current loop, has also comprised resonant capacitance C in the circuit.
The magnet exciting coil 7 of electromagnetic induction unit 9 is installed in by on the free rolling roller 8, and guaranteeing has certain clearance with steel surface 10, manually handle 11 operations of hand-held electromagnetic induction unit 9.With the roller 8 coaxial velocity sensors 6 of having installed, such as: speed encoder, the rate signal n that speed encoder is gathered
RpmDeliver to master controller 2, regulate power output according to sliding speed.When sliding speed is accelerated, power supply will strengthen output voltage, promptly increase output current (real-time power), guarantee the energy coincidence that the unit are steel plate is received.When sliding speed slows down, reduce output voltage, promptly reduced output current (real-time power), the power time product of unit are is consistent.
When whole system comes into operation, supply alternating current by three phase mains 1, electric energy finally generates an electromagnetic field and inductive loop on surface of steel workpiece 10 via master controller 2, leader cable 5 and electromagnetic induction unit 9, and can control the scope of heat energy accurately.Electromagnetic induction unit 9 and surface of steel workpiece 10 contact (so workpiece does not have wearing and tearing and tears) without any reality.Locality and controlled temperature can be removed coating and iron rust immediately.
In addition, magnetic field arrives the degree of depth by the frequency decision that feeds to the alternating current on the magnet exciting coil 7, that is to say that output voltage frequency is high more, and the penetration power that produces magnetic field is low more; Its frequency is low, and the penetration power that produces magnetic field is high more.Show that according to practice when the output voltage frequency of equipment work reached more than 20000 hertz, induction heat energy only can penetrate in the place of steel plate 0.3mm thickness, can remove paint and antirust wrappage.If the other one side of other coating at steel plate arranged, then be not affected fully.
The electromagnetic induction unit 9 of this paint removal rust removalling equipment is in order to produce enough alternating electromagnetic fields, and penetrates certain thickness steel surface 10, needs bigger current excitation magnet exciting coil 7; And the impedance of magnet exciting coil 7, induction reactance, and the internal resistance of iron and steel eddy current closure is less, it is very high that the driving voltage of magnet exciting coil 7 does not need, and is the low-voltage and high-current characteristic.
Referring to shown in Figure 2, the wrappage method of the removal steel surface 10 of the utility model embodiment may further comprise the steps:
The ferrous materials of step 1, band wrappage is prepared.
(1) ferrous materials of band wrappage is 5mm and above, surperficial opposed flattened.
(2) weldment sheet material is less than 5mm, notice that the back heat sink material prepares.
Step 2, ferrous materials cleaning.
Simple cleaning iron and steel wrappage concave-convex surface place.
Step 3: implement the steel surface wrappage and remove.
(1) master controller is opened in start.
(2) output parameter of selection master controller, power parameter is selected as follows, rated voltage 380 ± 10%V, 50%～100% can adjust fundamental frequency 50/60Hz between the rated power 25-50KW.
(3) staff extracts the electronic equipment that wrist-watch, ring and removal mobile phone etc. are carried.
(4) hand-hold front end electromagnetic induction unit and ferrous materials are fitted and are at the uniform velocity mobile.
(5) wrappage peels off separation naturally from steel surface.
Step 4: remove post processing.
Iron and steel is cooled to 40 ℃ naturally, has unevenly as steel surface, and available low-power high-voltage hydraulic giant cleans steel surface, removes concavo-convex interior remnants and deposits slag.
Present embodiment adopts electromagnetic induction heating technology, steel surface is heated the back directly just can divest all firm materials, equipment can accurately be controlled at the following 0.3 millimeter place of steel surface with the degree of depth that heats, rather than to the whole heating of iron and steel, and this processing mode has the efficient more than 10 times of traditional approach, and the person is had no injury and do not have any environmental pollution.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. a device of removing the steel surface wrappage is characterized in that, this device comprises: master controller, electromagnetic induction unit and velocity sensor, and described master controller links to each other with velocity sensor with described electromagnetic induction unit, wherein,
Described velocity sensor is used to survey the translational speed of described electromagnetic induction unit;
Described master controller is used for translational speed control output voltage and electric current according to described electromagnetic induction unit;
Described electromagnetic induction unit is used for sliding at described steel surface, and according to the control of described master controller, produces electromagnetic induction heat at steel surface.
2. device as claimed in claim 1 is characterized in that, described electromagnetic induction unit comprises magnet exciting coil, the resonance circuit in parallel with described magnet exciting coil, wherein,
Described magnet exciting coil is fixed on the movable part, and has the distance of setting with steel surface.
3. device as claimed in claim 2 is characterized in that, described movable part is roller, coaster.
4. device as claimed in claim 1 is characterized in that, described master controller comprises:
Rectification unit is used for the alternating current of input is carried out rectification, and to the inversion unit output DC;
Inversion unit according to the control of main control unit, carries out inversion with described direct current and produces high-frequency alternating current;
Main control unit is used for the translational speed according to the electromagnetic induction unit, regulates the voltage and current of inversion unit output, and inversion unit is carried out closed-loop control.
5. device as claimed in claim 4 is characterized in that, described rectification unit is the diode rectified three-phase circuit.
6. device as claimed in claim 4 is characterized in that, described inversion unit is a H type IGBT inverter bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200962840U CN202052730U (en) | 2011-04-02 | 2011-04-02 | Device for removing wrappage on steel surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200962840U CN202052730U (en) | 2011-04-02 | 2011-04-02 | Device for removing wrappage on steel surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052730U true CN202052730U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200962840U Expired - Fee Related CN202052730U (en) | 2011-04-02 | 2011-04-02 | Device for removing wrappage on steel surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102573158A (en) * | 2012-01-05 | 2012-07-11 | 江苏舾普泰克自动化科技有限公司 | Method and device for removing electromagnetic induction type metallic surface coating |
| CN102732704A (en) * | 2011-04-02 | 2012-10-17 | 重庆烽峦科技发展有限公司 | Device for removing wrappage on steel surface |
| CN108544355A (en) * | 2018-04-11 | 2018-09-18 | 山东师范大学 | A kind of ring that can protect limbs quickly abolishes device and method |
| CN110784073A (en) * | 2018-07-27 | 2020-02-11 | 奥迪股份公司 | Electric machine, motor vehicle having an electric machine, and method for operating an electric machine |
-
2011
- 2011-04-02 CN CN2011200962840U patent/CN202052730U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732704A (en) * | 2011-04-02 | 2012-10-17 | 重庆烽峦科技发展有限公司 | Device for removing wrappage on steel surface |
| CN102732704B (en) * | 2011-04-02 | 2013-08-28 | 重庆烽峦科技发展有限公司 | Device for removing wrappage on steel surface |
| CN102573158A (en) * | 2012-01-05 | 2012-07-11 | 江苏舾普泰克自动化科技有限公司 | Method and device for removing electromagnetic induction type metallic surface coating |
| CN102573158B (en) * | 2012-01-05 | 2014-04-09 | 江苏舾普泰克自动化科技有限公司 | Method and device for removing electromagnetic induction type metallic surface coating |
| CN108544355A (en) * | 2018-04-11 | 2018-09-18 | 山东师范大学 | A kind of ring that can protect limbs quickly abolishes device and method |
| CN110784073A (en) * | 2018-07-27 | 2020-02-11 | 奥迪股份公司 | Electric machine, motor vehicle having an electric machine, and method for operating an electric machine |
| CN110784073B (en) * | 2018-07-27 | 2021-11-23 | 奥迪股份公司 | Electric machine, motor vehicle having an electric machine, and method for operating an electric machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20140402 |