CN102573158A - Method and device for removing electromagnetic induction type metallic surface coating - Google Patents
Method and device for removing electromagnetic induction type metallic surface coating Download PDFInfo
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- CN102573158A CN102573158A CN201210001063XA CN201210001063A CN102573158A CN 102573158 A CN102573158 A CN 102573158A CN 201210001063X A CN201210001063X A CN 201210001063XA CN 201210001063 A CN201210001063 A CN 201210001063A CN 102573158 A CN102573158 A CN 102573158A
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Abstract
The invention discloses a method and a device for removing electromagnetic induction type metallic surface coating. The scheme adopted by the invention is that high-frequency current generates an induction magnetic field and a current vortex on a metallic surface via an electromagnetic induction coil, and further a coating is separated from the metallic surface under an appropriate temperature. The device comprises an induction power supply main frame (1), a relay power supply submachine (2), a hand-held sensor (3) and a removable induction head (4), and has the advantages of high speed, low energy consumption, no noise, no dust, no smoke, radiation prevention, discharge prevention, obsolete abrasiveness and sewage prevention, cleanness and safety, can removes the coasting difficult to be processed and on the surface of metal (in particular magnetic metal), can be widely suitable for coating removing operation of ships, storage grooves/cabinets/boxes, and various steel surfaces of coastwise and terrestrial oil conveying pipes.
Description
Technical field
The invention belongs to the electromagnetic induction field, relate in particular to a kind of electromagnetic induction type metal face coat removal method and equipment thereof.
Background technology
Vortex current is when energising ferromagnetic metal piece during near the ferromagnetic metal piece of not energising, produces magnetic field in the opposite direction on the ferromagnetic metal piece surface of not energising, and this magnetic field produces the electric current of cutting magnetic line.When alternating current passed through metal derby, electric current will concentrate on the metal derby surface to be passed through, and this phenomenon is kelvin effect, and the high more this phenomenon of frequency is obvious more.Because metal has resistance, these current vortexs can be transformed into induction heat energy, and it is widely used for metal is carried out surface hardening in industry.
Ship deck, hull; Groove/cabinet/case that the oil storage gas storage of petrochemical industry is used; The petroleum pipeline on coastal waters and land; Bridge and other Industrial Steel structures etc. when maintenance, generally all need be removed various coatings such as its surperficial paint, coating, rusty scale, fire prevention coating, corrosion thing and oil stain residue.Sandblast, grinding or water cutter are adopted in the operation of conventional surface coating removal usually.The mode of sandblast and grinding can produce a large amount of discarded objects, and its expense of handling discarded object is also considerable; The water cutter also is the problem of often will disposing of sewage.In addition, the mode of sandblast, grinding or water cutter also can produce very big noise, and average energy consumption reaches 3kWh/ square metre.
Summary of the invention
The purpose of this invention is to provide a kind of electromagnetic induction (current vortex) that utilizes and give birth to the joint interface that thermal technology destroys the metal surface and is coated with interlayer, efficiency is high, noise is little, pollute little coating for metal surfaces removal method.
Another object of the present invention provides a kind ofly to be utilized electromagnetic induction (current vortex) to give birth to thermal technology to destroy metal surface and the joint interface that is coated with interlayer, efficient, energy-saving and environmental protection, is used for the equipment of hull, ship deck, petroleum pipeline, oil storage (natural gas or chemicals) jar/groove/face coats such as cabinet/case removal safely.
Technical scheme of the present invention is: a kind of electromagnetic induction type metal face coat removal method; Thereby utilize electromagnetic induction to give birth to thermal technology and destroy metal surface and the joint interface removal coat that is coated with interlayer; The electromagnetic induction coil that utilizes high-frequency current to pass through high power density produces induced field and current vortex in the metal surface, and then the suitable temperature of generation makes coat separate with the metal surface; Said high-frequency current frequency is 10kHz ~ 100kHz; The power density of said electromagnetic induction coil is 1500 ~ 2000kW/m
2
A kind of electromagnetic induction type metal face coat is removed equipment; Comprise induction power supply main frame, relaying power supply handset, hand-held inductor and replaceable inductive head; Said induction power supply main frame is connected with relaying power supply handset through the RF power cable of band water-cooling apparatus and magnetic shielding device, and said relaying power supply handset is connected with hand-held inductor through the RF power cable of band water-cooling apparatus and magnetic shielding device; Said induction power supply main frame is connected with relaying power supply handset, hand-held inductor through data wire respectively; Said replaceable inductive head is connected with hand-held inductor through the standard connector firmly, is connected with the RF power cable of data wire and band water-cooling apparatus between said replaceable inductive head and the hand-held inductor;
Said induction power supply main frame is used to equipment electric power, cooling water circulation and purification, parameter setting, operational monitoring is provided, and the Long-distance Control of centering relay source handset and hand-held inductor;
Said relaying power supply handset is used for high frequency boosts, and for said hand-held inductor provides high-frequency induction electric power, carries out the cooling water supercharging simultaneously;
Said hand-held inductor is used to monitor the real time job temperature and the speed of replaceable inductive head, and for replaceable inductive head suitable induced voltage and induction frequencies is provided;
Said replaceable inductive head is used for generation induced field and current vortex in the metal surface, and produces suitable temperature.
Further; Said induction power supply main frame comprises main control unit, PMU, rectification filtering unit, high-frequency inversion unit, cooling system and man-machine interface; Said main control unit passes through data wire and PMU, rectification filtering unit, high-frequency inversion unit, cooling system, man-machine interface respectively, and relaying power supply handset links to each other with hand-held inductor; Said alternating current produces the high frequency low voltage electricity through PMU, rectification filtering unit and high-frequency inversion unit successively and outputs to said relaying power supply handset; Said cooling water is input to said relaying power supply handset through said cooling system; Said man-machine interface is used to carry out the parameter setting.
Further, said relaying power supply handset comprises power-supply controller of electric, high frequency boost module and cooling water pressure charging system, and said power-supply controller of electric is used to control said high frequency boost module and cooling water pressure charging system.
Further, said hand-held inductor comprises induction controller, operating key and display, and said induction controller is connected with display with said operating key through data wire, and said induction controller is used to receive real time job temperature and speed; Said operating key and display are used for input control and information shows.
Further, said replaceable inductive head comprises TEMP, velocity transducer and inductive head body; Said inductive head body is the electromagnetic induction coil that high-power high-temperature resistant enamelled wire is made into, and it adopts immersion or/and interior general formula water cooling; Said TEMP and velocity transducer are used for to hand-held inductor feedback real time job temperature and speed.
Further, the power density of said inductive head body 19 is 1500 ~ 2000kW/m
2, what said electromagnetic induction coil passed through is 10kHz ~ 100kHz high-frequency current.
The invention has the beneficial effects as follows: utilize electromagnetic induction (current vortex) to give birth to thermal technology and destroy metal surface and the joint interface that is coated with interlayer; Can adjust control energy-output ratio, joint interface temperature, heat energy penetration power, operating speed etc. according to the coating of metal surface unlike material, remove the various coats such as paint, coating, rusty scale, fire prevention coating, corrosion thing and oil stain residue on the metal surface easily and up hill and dale.Compare with traditional approachs such as sandblast, grinding or water cuttves; Have that speed is fast, energy consumption is low, noiselessness, free from dust, non smoke, nothing radiation, do not have discharging; Totally, safety; And do not produce discarded abrasive and sewage, can remove the various unmanageable coatings in metal (especially ferromagnetic metal) surface.Because the equipment inductive head contact with working surface, therefore can operation under moist surface or moist environment, it is little to wear and tear, and maintenance makes things convenient for.This equipment can be widely used in the coating removal operation of the various steel surfaces such as petroleum pipeline on boats and ships, storage tank/cabinet/case, coastal waters and land.
Description of drawings
Fig. 1 is the system configuration theory diagram of equipment;
Fig. 2 is that the system of equipment forms sketch map;
Fig. 3 is a fundamental diagram.
Embodiment
As depicted in figs. 1 and 2; A kind of electromagnetic induction type metal face coat provided by the present invention is removed equipment; Comprise induction power supply main frame 1, relaying power supply handset 2, hand-held inductor 3 and replaceable inductive head 4; And connection induction power supply main frame 1 and the band water-cooling apparatus of relaying power supply handset 2 and the special-purpose RF power cable of magnetic shielding device; Connection relaying power supply handset 2 and the band water-cooling apparatus of hand-held inductor 3 and the special-purpose RF power cable of magnetic shielding device, the exclusive data cable of connection relaying power supply handset 2 and induction power supply main frame 1, hand-held inductor 3 and induction power supply main frame 1.
Induction power supply main frame 1; Be used to entire equipment electric power, cooling water circulation and purification, parameter setting, operational monitoring are provided; And the Long-distance Control of centering relay source handset 2 and hand-held inductor 3 etc., mainly comprise main control unit 6, PMU 7, rectification filtering unit 8, high-frequency inversion unit 9, man-machine interface unit 10 and cooling system 11.But electric power transfer adopts the special-purpose RF power cable 5 of band water cooling plant and magnetic shielding device and merogenesis expansion (20 meters at every joint can be expanded 60 meters of 3 joint meters), and transfer of data adopts industrial field bus to realize.It is the control core system with PLC that main control unit 6 is one; Main coordination, control and the management of accomplishing between PMU 7, rectification filtering unit 8, high-frequency inversion unit 9, man-machine interface unit 10 and 11 5 unit of cooling system (system), the Long-distance Control and the management of centering relay source handset and hand-held inductor.PMU 7 mainly comprises circuit breaker, fuse, contactor, relay etc., is used for the alternating current input power supplying of 380V/50Hz or 480V/60Hz is protected and break-make.Rectification filtering unit 8 is made up of three-phase commutation bridge switch module, compound filter module and relevant protective circuit.The core of high-frequency inversion unit 9 is IGBT high-frequency inversion modules, is used for the dc inverter of rectification filtering unit 8 output is become the high-frequency alternating current of 10kHz ~ 100kHz.Man-machine interface unit 10 is made up of LCD, keyboard, indicator light, switch and alarm buzzer: display is used for display operation menu, running parameter, parameter setting, report to the police indication, fault type etc.; Keyboard comprises 10 numerical keys, 10 function keys, 2 directionkeys, acknowledgement key, backspace key, clear key etc.; Indicator light comprises operation indication, faulty indication, Long-distance Control, local control etc.; Switch comprises upper electrical switch, (fault alarm) reset switch, control mode selector switch etc.
Relaying power supply handset 2 is used for electric power relaying (high frequency boosts), for hand-held inductor 3 provides high-frequency induction electric power, has the cooling system function of increasing pressure simultaneously, comprises power-supply controller of electric 12, high frequency boost module 13 and cooling water pressure charging system 14.Power-supply controller of electric 12 is made up of PLC and supplementary module, and the core of high frequency boost module 13 is a high-frequency step-up transformer.
Hand-held inductor 3; Be used for monitoring the temperature and the speed of inductive head 4 real time jobs; And provide running parameters such as suitable induced voltage and induction frequencies to accomplish different job tasks for inductive head 4, comprising: induction controller 15 is made up of AVR single-chip microcomputer and respective peripheral circuit; Be used for being implemented under the automatic mode and suitable running parameter be provided automatically for inductive head 4; The control of operating key 16 and display 17 is carried out data interaction through fieldbus and main control unit 6, and the data acquisition of temperature sensor 20 and velocity transducer 21; Operating key 16 mainly comprises startup/stop button, power increasing button, power reduction button, replacement button etc.; With digital parameter display 17, be used for showing work at present parameters such as operation area temperature, operating speed, induced voltage, induction frequencies.
Replaceable inductive head 4 is used for producing induced field and current vortex in the metal surface of need operation, and produces suitable temperature in the metal surface, accomplishes the coating removal operation, mainly comprises the high power density (1500 ~ 2000kW/m that is with water-cooling apparatus
2) inductive head body 19, TEMP 20 and velocity transducer 21.Replaceable inductive head 4 is connected with hand-held inductor 3 through standard connector 18 firmly, and the purpose of replacing is to use the inductive head of respective shapes for the difformity that is directed against the metal surface.
Operation principle of the present invention is as shown in Figure 3; When in the electromagnetic induction coil during through 10kHz ~ 100kHz high-frequency current; To promptly produce 200 ℃ ~ 400 ℃ localized hyperthermia among a small circle at the joint interface place between surface of steel plate and coat; Destroy connecting between surface of steel plate and coat, can root out the coat at this place then easily.Along with moving of inductor, can remove all kinds of coats of surface of steel plate fast and efficiently.Because the electromagnetic induction heating layer that the present invention produces is controlled in the very thin thickness, can't the coating of steel plate another side be exerted an influence.
The course of work of embodiment is following: induction power supply main frame 1 the corresponding interface is received with AC power and cooling water in (1), does not have water purification to use like the operation place, and cooling system 11 must increase water filtering device.(2) special-purpose RF power cable and the data cable between connection induction power supply main frame 1 and the relaying power supply handset 2; Power cable can expand to more piece according to operating radius; If still must increase job area, can prolong the length of input feed cable, this length is unrestricted.(3) power cable and the data cable between connection relaying power supply handset 2 and the hand-held inductor 3.(4) select suitable replaceable inductive head 4 according to the shape of metal operation surface, be connected to hand-held inductor 3, and velocity transducer on the replaceable inductive head 4 20 and temperature sensor 21 data wires are inserted the corresponding port of handing inductor 3 with instrument.(5) connect induction power supply main frame 1, select proper working parameters, comprise heat penetration, heating-up temperature etc., and select control mode according to the thickness and the character of metal operation surface coating.(6) press the start button of handing on the inductor 3; Induction power supply generates an electromagnetic field and inductive loop at the metal operation surface via induction coil; Induction controller 15 is gathered the temperature and the operating speed of operation surface in real time; And control heated perimeter and heating-up temperature automatically by the running parameter that is provided with, this locality and controlled heat energy can be removed coating for metal surfaces immediately, in case of necessity the auxiliary coating of rooting out operation surface of instrument such as available spades.(7) ambulatory handheld inductor 3 needs the surface of operation to other, accomplishes up to operation.
The present invention can adjust control energy-output ratio, joint interface temperature, heat energy penetration power, operating speed etc. according to the coating of metal surface unlike material, removes the various coats such as paint, coating, rusty scale, fire prevention coating, corrosion thing and oil stain residue on the metal surface easily and up hill and dale.Compare with traditional approachs such as sandblast, grinding or water cuttves; The present invention has that speed is fast, energy consumption is low, noiselessness, free from dust, non smoke, nothing radiation, do not have discharging; Totally, safety; And do not produce discarded abrasive and sewage, can remove the various unmanageable coatings in metal (especially ferromagnetic metal) surface.Compare with traditional approach, main advantage of the present invention has:
The speed of removing coating is than the fast 5-10 of traditional approach times;
According to the material and the proterties of coating, per hour approximately can remove the coating of 5-50 square metre of area;
Noiselessness can not influence surrounding environment;
Do not grind the release of sand, even if utilize the sandblast reprocessing of doing things, the pollution of dust also greatly reduces;
Considerably less Litter and disposal cost, environment friendly and pollution-free;
Coating can be removed fully, also partial coating can be removed selectively;
But most coats that process metal surfaces is common;
There is not the pollution of abrasive particles to scatter;
Basically do not have dust emission, needn't build expensive time-consuming again partition wall;
Other engineering (like welding, assembling, mechanical, electric etc.) all can nearby be carried out simultaneously;
All very safe to operator and surrounding environment, under open environment, the operator uses the standard personal protection of common mechanical engineering to be equipped with and gets final product;
Low energy consumption, the required energy consumption of unit are has only 1/2 ~ 1/3 of traditional approach;
Inductive head has multiple shape and size, can be used for the several work occasion, and changes conveniently;
Can operation under moist surface or moist environment, also no problem even if the rainy day uses;
Inductive head does not contact with working surface, and all movable parts are wheeled, almost not wearing and tearing, and maintenance is convenient;
Can not produce any harmful effect to electrical type equipment.
Above unrestricted technical scheme of the present invention only in order to explanation; Although the present invention is specified with reference to the foregoing description; Those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention; And replace any modification or the part that do not break away from the spirit and scope of the present invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. electromagnetic induction type metal face coat removal method; Thereby utilize electromagnetic induction to give birth to thermal technology and destroy metal surface and the joint interface removal coat that is coated with interlayer; It is characterized in that; The electromagnetic induction coil that utilizes high-frequency current to pass through high power density produces induced field and current vortex in the metal surface, and then the suitable temperature of generation makes coat separate with the metal surface.
2. a kind of electromagnetic induction type metal face coat removal method according to claim 1 is characterized in that said high-frequency current frequency is 10kHz ~ 100kHz; The power density of said electromagnetic induction coil is 1500 ~ 2000kW/m
2
3. an electromagnetic induction type metal face coat is removed equipment; Comprise induction power supply main frame (1), relaying power supply handset (2), hand-held inductor (3) and replaceable inductive head (4); It is characterized in that; Said induction power supply main frame (1) is connected with relaying power supply handset (2) through the RF power cable of band water-cooling apparatus and magnetic shielding device, and said relaying power supply handset (2) is connected with hand-held inductor (3) through the RF power cable of band water-cooling apparatus and magnetic shielding device; Said induction power supply main frame (1) is connected with relaying power supply handset (2), hand-held inductor (3) through data wire respectively; Said replaceable inductive head (4) is connected with hand-held inductor (3) through standard connector (18) firmly, is connected with the RF power cable of data wire and band water-cooling apparatus between said replaceable inductive head (4) and the hand-held inductor (3);
Said induction power supply main frame (1) equipment of being used to provides electric power, cooling water circulation and purification, parameter setting, operational monitoring, and the Long-distance Control of centering relay source handset (2) and hand-held inductor (3);
Said relaying power supply handset (2) is used for high frequency boosts, and for said hand-held inductor (3) provides high-frequency induction electric power, carries out the cooling water supercharging simultaneously;
Said hand-held inductor (3) is used to monitor the real time job temperature and the speed of replaceable inductive head (4), and for replaceable inductive head (4) suitable induced voltage and induction frequencies is provided;
Said replaceable inductive head (4) is used for generation induced field and current vortex in the metal surface, and produces suitable temperature.
4. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment; It is characterized in that; Said induction power supply main frame (1) comprises main control unit (6), PMU (7), rectification filtering unit (8), high-frequency inversion unit (9), cooling system (11) and man-machine interface (10); Said main control unit (6) passes through data wire and PMU (7), rectification filtering unit (8), high-frequency inversion unit (9), cooling system (11), man-machine interface (10) respectively, and relaying power supply handset (2) links to each other with hand-held inductor (3); Said alternating current outputs to said relaying power supply handset (2) through PMU (7), rectification filtering unit (8) and high-frequency inversion unit (9) generation high frequency low voltage electricity successively; Said cooling water is input to said relaying power supply handset (2) through said cooling system (11); Said man-machine interface (10) is used to carry out the parameter setting and information shows.
5. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment; It is characterized in that; Said relaying power supply handset (2) comprises power-supply controller of electric (12), high frequency boost module (13) and cooling water pressure charging system (14), and said power-supply controller of electric (12) is used to control said high frequency boost module (13) and cooling water pressure charging system (14).
6. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment; It is characterized in that; Said hand-held inductor (3) comprises induction controller (15), operating key (16) and display (17); Said induction controller (3) is connected with display (17) with said operating key (16) through data wire, and said induction controller (15) is used to receive real time job temperature and speed; Said operating key (16) and display (17) are used for input control and information shows.
7. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment, it is characterized in that said replaceable inductive head (4) comprises TEMP (20), velocity transducer (21) and inductive head body (19); The electromagnetic induction coil that said inductive head body (19) is made into for high-power high-temperature resistant enamelled wire, it adopts immersion or/and interior general formula water cooling; Said TEMP (20) and velocity transducer (21) are used for to hand-held inductor (3) feedback real time job temperature and speed.
8. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment, it is characterized in that the power density of said inductive head body (19) is 1500 ~ 2000kW/m
2
9. a kind of electromagnetic induction type metal face coat according to claim 3 is removed equipment, it is characterized in that what said electromagnetic induction coil passed through is 10kHz ~ 100kHz high-frequency current.
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| CN201210001063.XA CN102573158B (en) | 2012-01-05 | 2012-01-05 | Method and device for removing electromagnetic induction type metallic surface coating |
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| CN201210001063.XA CN102573158B (en) | 2012-01-05 | 2012-01-05 | Method and device for removing electromagnetic induction type metallic surface coating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102392249A (en) * | 2011-11-28 | 2012-03-28 | 江西省科学院应用物理研究所 | Method for removing coatings on surfaces of hard alloys |
| CN104624540A (en) * | 2015-02-27 | 2015-05-20 | 四川渝拓橡塑工程有限公司 | Crawler-type coating removal device |
| CN105173033A (en) * | 2015-09-30 | 2015-12-23 | 江苏天宝利自动化科技有限公司 | Heating device for ship paint removal and ship paint removal method |
| CN107076622A (en) * | 2014-08-21 | 2017-08-18 | 圣地亚哥德孔波斯特拉大学 | Temperature measurement equipment, device manufacturing method and the point of impingement measuring system including the equipment |
| CN109202733A (en) * | 2018-09-26 | 2019-01-15 | 南京航空航天大学 | A kind of minimizing technology and device of metal component surface thermal barrier coating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| NO338187B1 (en) * | 2014-09-19 | 2016-08-01 | Brynsloekken As | Antigree by Induction |
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| CN109202733A (en) * | 2018-09-26 | 2019-01-15 | 南京航空航天大学 | A kind of minimizing technology and device of metal component surface thermal barrier coating |
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| CN102573158B (en) | 2014-04-09 |
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Address after: Building 2, No.36, Nanwei 4th Road, Dingmao, New District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: JIANGSU SHIPTEK AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: JIANGSU SHIPTEK AUTOMATION TECHNOLOGY Co.,Ltd. |
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