CN210048804U - Inside and outside double coil induction heating device of thick wall steel pipe - Google Patents
Inside and outside double coil induction heating device of thick wall steel pipe Download PDFInfo
- Publication number
- CN210048804U CN210048804U CN201920565742.7U CN201920565742U CN210048804U CN 210048804 U CN210048804 U CN 210048804U CN 201920565742 U CN201920565742 U CN 201920565742U CN 210048804 U CN210048804 U CN 210048804U
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- steel pipe
- thick
- wall coil
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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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Abstract
The utility model discloses an inside and outside twin coil induction heating device of thick wall steel pipe, the device mainly include three-jaw chuck, thick wall steel pipe, outer wall coil, inner wall coil, outer wall coil negative terminal, the positive terminal of outer wall coil, the positive terminal of inner wall coil, inner wall coil negative terminal, three-jaw chuck with thick wall steel pipe chucking, distance between outer wall coil and the thick wall steel pipe outer wall keeps being d
1And the distance between the inner wall coil and the inner wall of the thick-wall steel pipe is kept as d
2Negative wiring of outer wall coilThe end and the positive terminal of the outer wall coil are respectively connected with an external power supply, the negative terminal of the inner wall coil and the positive terminal of the inner wall coil are respectively connected with the external power supply, a longitudinal magnetic field is generated after the outer wall coil is electrified, a transverse magnetic field is generated after the inner wall coil is electrified, the local induction heating of the inner wall and the outer wall of the steel pipe is realized, and the three-jaw chuck clamps the thick-wall steel pipe and rotates, so that the steel pipe can be uniformly heated.
Description
Technical Field
The utility model belongs to welded tube induction heating field, an inside and outside double coil induction heating device of thick wall steel pipe.
Background
With the development of world industry, the revolution of energy structures in China pushes the rapid development of nuclear power and petrochemical equipment manufacturing industry, and the demand for large-sized thick-wall pipe bodies in the two fields is continuously increased. The large thick-wall steel pipe is easy to crack in the welding and manufacturing process due to large pipe diameter, large pipe wall thickness and large restraint degree. In order to remove the welding residual stress and improve the welding quality, the integral heat treatment of the thick-wall steel pipe is needed. At present, generally use flame to preheat and the after-heating in the production, but the cost of flame heating is high, and operational environment is abominable, and energy utilization is low, and the temperature is wayward, and the later maintenance expense is high. The induction heating uses electricity as energy, and is completely different from the use of natural gas, gas or liquefied petroleum gas and other gas, smoke and dust are generated in the heating process of the steel pipe, and air pollution is formed. Therefore, pre-weld preheating and post-weld heating of thick-walled steel pipes requires an efficient, low-cost, temperature-controlled heating process. The induction heating is a novel welding heat treatment heating process, has the advantages of flexible process, high heating speed, easy temperature control, high energy efficiency, low production cost and the like, and electric energy belongs to green energy, cannot damage the environment, and meets the requirement of the human society on environmental protection.
Disclosure of Invention
To above problem, the utility model relates to an inside and outside twin coil induction heating device of thick wall steel pipe utilizes the produced vertical magnetic field of outer wall coil of thick wall steel pipe and the produced horizontal magnetic field of inner coil to carry out induction heating to the thick wall steel pipe more high-efficiently.
The utility model discloses mainly include three-jaw chuck, thick wall steel pipe, outer wall coil, inner wall coil, outer wall coil burden wiring end, the positive wiring end of outer wall coil, the positive wiring end of inner wall coil, inner wall coil burden wiring end, three-jaw chuck with thick wall steel pipe chucking, distance between outer wall coil and the thick wall steel pipe outer wall keeps being d
1And the distance between the inner wall coil and the inner wall of the thick-wall steel pipe is kept as d
2The negative wiring end of the outer wall coil and the positive wiring end of the outer wall coil are respectively connected with an external power supply, and the negative wiring end of the inner wall coil and the positive wiring end of the inner wall coil are respectively connected with the external power supply.
The utility model discloses the device includes following technical scheme: the distance between the outer wall coil and the outer wall of the thick-wall steel pipe is 12mm<d
1<20 mm; the distance between the inner wall coil and the inner wall of the thick-wall steel pipe is 10mm<d
2<15 mm; the outer wall coil generates a longitudinal magnetic field after being electrified, and the inner wall coil generates a transverse magnetic field after being electrified, so that the local induction heating of the inner wall and the outer wall of the welding pipe is realized; the three-jaw chuck clamps the thick-wall steel pipe and rotates, so that the steel pipe can be uniformly heated.
The utility model discloses than advantage and positive effect that current device brought:
1. the outer wall coil generates a longitudinal magnetic field after being electrified, and the inner wall coil generates a transverse magnetic field after being electrified, so that the local induction heating of the inner wall and the outer wall of the steel pipe is realized.
2. The three-jaw chuck is adopted to drive the steel pipe to rotate, so that the local heating of the pipe wall is changed into the circumferential integral heating of the pipe wall, and the heating efficiency is higher.
3. The inner and outer wall coils generate different magnetic fields, and can perform induction heating on the thick-wall steel pipe simultaneously, so that the thick pipe wall is heated more uniformly, and the efficiency is higher.
Drawings
The device of the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is an operational view of a preferred embodiment of the present invention;
FIG. 2 is a view of the inner wall coil of the present invention;
figure 3 is a side view of a preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of a preferred embodiment of the present invention.
In the figure 1, a three-jaw chuck; 2. a thick-walled steel pipe; 3. an outer wall coil; 4. an inner wall coil; 5. an outer wall coil negative terminal; 6. the outer wall coil is connected with a positive terminal; 7. a positive wiring end of the inner wall coil; 8. and the inner wall coil is connected with a negative terminal.
Detailed Description
In fig. 1 to 4, the thick-walled steel pipe (2) is clamped by the three-jaw chuck (1) and the distance d between the outer-wall coil (3) and the outer wall of the thick-walled steel pipe (2) is maintained
1The distance between the inner wall coil (4) and the inner wall of the thick-walled steel pipe (2) is kept as d
2The negative terminal (5) of the outer wall coil and the positive terminal (6) of the outer wall coil are dividedThe inner wall coil negative wiring end (8) and the inner wall coil positive wiring end (7) are respectively connected with the external power supply, so that the induction heating of the thick-wall steel pipe is realized.
Claims (2)
1. The utility model provides an inside and outside twin coil induction heating device of thick wall steel pipe, its characterized in that, including three-jaw chuck, thick wall steel pipe, outer wall coil, inner wall coil, outer wall coil negative terminal, the positive terminal of outer wall coil, the positive terminal of inner wall coil, inner wall coil negative terminal, three-jaw chuck will thick wall steel pipe chucking, the outer wall coil with distance between the thick wall steel pipe outer wall keeps for d
1The distance between the inner wall coil and the inner wall of the thick-wall steel pipe is kept as d
2The negative wiring end of the outer wall coil and the positive wiring end of the outer wall coil are respectively connected with an external power supply, and the negative wiring end of the inner wall coil and the positive wiring end of the inner wall coil are respectively connected with the external power supply.
2. The double coil induction heating device inside and outside the thick-walled steel pipe as claimed in claim 1, wherein: the distance between the outer wall coil and the outer wall of the thick-walled steel pipe is 12mm<d
1<20mm, and the distance between the inner wall coil and the inner wall of the thick-wall steel pipe is 10mm<d
2<15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565742.7U CN210048804U (en) | 2019-04-24 | 2019-04-24 | Inside and outside double coil induction heating device of thick wall steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920565742.7U CN210048804U (en) | 2019-04-24 | 2019-04-24 | Inside and outside double coil induction heating device of thick wall steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210048804U true CN210048804U (en) | 2020-02-11 |
Family
ID=69381015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920565742.7U Expired - Fee Related CN210048804U (en) | 2019-04-24 | 2019-04-24 | Inside and outside double coil induction heating device of thick wall steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210048804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421198A (en) * | 2020-03-23 | 2020-07-17 | 燕山大学 | Device and method for local rapid welding of metal pipe |
| CN112935505A (en) * | 2021-01-29 | 2021-06-11 | 燕山大学 | High frequency welded tube impeder and method of using same |
| CN113245756A (en) * | 2021-05-27 | 2021-08-13 | 燕山大学 | Double-layer composite pipe straight seam welding heating device and process thereof |
-
2019
- 2019-04-24 CN CN201920565742.7U patent/CN210048804U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421198A (en) * | 2020-03-23 | 2020-07-17 | 燕山大学 | Device and method for local rapid welding of metal pipe |
| CN111421198B (en) * | 2020-03-23 | 2021-10-29 | 燕山大学 | Device and method for local rapid welding of metal pipe |
| CN112935505A (en) * | 2021-01-29 | 2021-06-11 | 燕山大学 | High frequency welded tube impeder and method of using same |
| CN112935505B (en) * | 2021-01-29 | 2022-04-19 | 燕山大学 | High frequency welded tube impeder and method of using same |
| CN113245756A (en) * | 2021-05-27 | 2021-08-13 | 燕山大学 | Double-layer composite pipe straight seam welding heating device and process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20210424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |