CN202261884U - Magnetic shielding apparatus for intermediate frequency induction heater - Google Patents
Magnetic shielding apparatus for intermediate frequency induction heater Download PDFInfo
- Publication number
- CN202261884U CN202261884U CN 201120336589 CN201120336589U CN202261884U CN 202261884 U CN202261884 U CN 202261884U CN 201120336589 CN201120336589 CN 201120336589 CN 201120336589 U CN201120336589 U CN 201120336589U CN 202261884 U CN202261884 U CN 202261884U
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- screen device
- frequency induction
- induction heater
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Abstract
The utility model relates to a magnetic shielding apparatus for an intermediate frequency induction heater, which is prepared through improving the prior annular magnetic shielding apparatus, wherein the annular magnetic shield body of an annular shielding apparatus is replaced with a sphere magnetic shield body, a cylindrical magnetic shield body or a coned magnetic shielding body, and through arranging water inlet and outlet pipes on the sphere magnetic shield body, the cylindrical magnetic shield body or the coned magnetic shield body, a sphere magnetic shielding apparatus, a cylindrical magnetic shielding apparatus or a coned magnetic shielding apparatus is formed. The magnetic shield body of the intermediate frequency induction heater is only needed to be prepared into a plurality of different shapes according to the shape of an intermediate frequency induction heater hole, thereby enabling thickened tubes of various specifications to be completely and flexibly configured, and the magnetic shielding apparatus moves back and forth within the tail end of the intermediate frequency induction heater to change magnetic field distribution and adjust tube end temperature, thereby enabling heating effect to be more ideal.
Description
Technical field
The utility model relates to a kind of metallurgy industry Pipe Middle Frequency Induction heater technology, particularly a kind of magnetic shielding device that is used for improving the pipe end temperature homogeneity of Pipe Middle Frequency Induction heater.
Background technology
When producing, adopts by the petroleum pipeline end upsetting medium frequency induction heater heating; Heated length is at 200-600mm; Because the skin effect of heating in medium frequency; Exist heating-up temperature to deposit inequality at the steel pipe length direction, the temperature in the pipe end 30mm differs about 150-200 ℃ than back segment height, thereby influences heats.In order to eliminate the skin effect of heating in medium frequency; Steel pipe is kept evenly in the heating-up temperature of length direction; Add a copper magnetic shielding device at the medium frequency induction heater tail end; Its effect is to change the electromagnetic field distribution that medium frequency induction heater produces, and shielding is at the part induced field of pipe end, thus the skin effect of elimination pipe end.Flow of cooling water is arranged in the magnetic shielding device, and cooling water is to let copper magnetic shielding device cooling, does not make its fusing distortion.
Existing medium frequency induction heater magnetic shielding device is a kind of annular magnetic screening arrangement; Shown in accompanying drawing 1; It is made up of the open annular magnetic screen device of a closed at both ends 1, a water inlet pipe 2 and an outlet pipe 3; Water inlet pipe 2 and outlet pipe 3 are located at the openend of annular magnetic shielding device 1 respectively, and communicate with the inner chamber of annular magnetic shielding device 1, make water inlet pipe 2, annular magnetic shielding device 1 and outlet pipe 3 form a cooling water circulation canal.
There is following defective in existing annular magnetic screening arrangement:
1, when the upset end size changes, must in time change the annular magnetic screening arrangement, otherwise just not reach shield effectiveness; So not only will customize the annular magnetic screening arrangement, and the steel pipe of specification of the same race will be changed also when the upset end size changes to the annular magnetic screening arrangement by specification.
2,, it still is higher about 50 ℃ apart from the temperature at 50 millimeters places of pipe end when the size of annular magnetic screening arrangement fully and during the pipe end size match.The phenomenon that when the needed temperature of distortion is higher, occurs local overheating, burning easily.
3, contact area is less, is unfavorable for conducting heat, and the water yield in copper pipe is also less, causes copper pipe to be prone to burn damage.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art and a kind of novel medium frequency induction heater magnetic shielding device is provided; It is that existing annular magnetic screening arrangement is improved; Change the annular magnetic shielding device of annular magnetic screening arrangement into spheroid magnetic screen device, cylinder magnetic screen device, cone magnetic screen device and other shape; Increase contact area, all size that like this can the flexible configuration extra strong pipe makes its heats desirable more.
The technical scheme of the utility model is: a kind of medium frequency induction heater magnetic shielding device; It comprises a magnetic screen device, a water inlet pipe and an outlet pipe; Described magnetic screen device is the spheroid of sealing; Water inlet pipe becomes parallel distribution to be fixed on the spheroid magnetic screen device with outlet pipe, and communicates with the inner chamber of spheroid magnetic screen device, makes water inlet pipe, spheroid magnetic screen device and outlet pipe form a cooling water circulation canal.
Spheroid magnetic screen device only needs to make several kinds of ball-types that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
The further technical scheme of the utility model is: a kind of medium frequency induction heater magnetic shielding device; Described magnetic screen device is the cylinder of sealing; Cylindrical two ends are semi arch; Water inlet pipe becomes parallel distribution to be fixed on the semi arch end of cylinder magnetic screen device one end with outlet pipe, and communicates with the inner chamber of cylinder magnetic screen device, makes water inlet pipe, cylinder magnetic screen device and outlet pipe form a cooling water circulation canal.
Cylinder magnetic screen device only needs to make several kinds of shapes that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
The further again technical scheme of the utility model is: a kind of medium frequency induction heater magnetic shielding device; Described magnetic screen device is the cone of sealing; Water inlet pipe becomes parallel distribution to be fixed on the big end of cone magnetic screen device with outlet pipe; And communicate with the inner chamber of cone magnetic screen device, make water inlet pipe, cone magnetic screen device and outlet pipe form a cooling water circulation canal.
Cone magnetic screen device only needs to make several kinds of shapes that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
The utility model compared with prior art has following characteristics:
1, the magnetic screen device can be made spheroid, cylinder or cone, only needs make several kinds of shapes that vary in size by the medium frequency induction heater hole shape all size that just fully can the flexible configuration extra strong pipe.
2, increase heat transfer area, be more conducive to the temperature homogeneity adjustment.
3, magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes heating pipe end Temperature Distribution more even, and heats is desirable more, has stopped overheated, burn-off phenomenon fully.
4, the thickening quality tips of coming out is good, practices thrift cost, and the thickening lumber recovery has had large increase.
Further describe below in conjunction with accompanying drawing and embodiment detailed structure the utility model.
Description of drawings
Accompanying drawing 1 is existing annular magnetic screening arrangement structural representation;
Accompanying drawing 2 is the A-A cutaway view in the accompanying drawing 1;
The spheroid magnetic shielding device structural representation that accompanying drawing 3 provides for the utility model;
Accompanying drawing 4 is the B-B cutaway view in the accompanying drawing 3;
The cylinder magnetic shielding device structural representation that accompanying drawing 5 provides for the utility model;
Accompanying drawing 6 is the C-C cutaway view in the accompanying drawing 5;
The cone magnetic shielding device structural representation that accompanying drawing 7 provides for the utility model;
Accompanying drawing 8 is the D-D cutaway view in the accompanying drawing 7;
The spheroid magnetic shielding device user mode figure that accompanying drawing 9 provides for the utility model;
Accompanying drawing 10 is the E-E cutaway view in the accompanying drawing 9.
Embodiment
Embodiment one, shown in accompanying drawing 3, accompanying drawing 4, a kind of medium frequency induction heater magnetic shielding device,
It comprises a spheroid magnetic screen device 4, a water inlet pipe 5 and an outlet pipe 6; 6 one-tenth parallel distributions of water inlet pipe 5 and outlet pipe are fixed on the spheroid magnetic screen device 4; And communicate with the inner chamber of spheroid magnetic screen device 4, make water inlet pipe 5, spheroid magnetic screen device 4 and outlet pipe 6 form a cooling water circulation canal.
4 need of spheroid magnetic screen device are made several kinds of spheroids that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
Operation principle of the utility model and method for using such as accompanying drawing 9 and accompanying drawing 10; Extra strong pipe 13 gets into medium frequency induction heater 14 heating; Spheroid magnetic shielding device 15 is arranged in the medium frequency induction heater 4 tail end holes; Spheroid magnetic shielding device 15 can change the temperature that Distribution of Magnetic Field is regulated pipe end through in medium frequency induction heater 14 tail ends, moving forward and backward, thereby makes its heats desirable more.
Embodiment two, shown in accompanying drawing 5, accompanying drawing 6; A kind of medium frequency induction heater magnetic shielding device; It comprises a cylinder magnetic screen device 7, a water inlet pipe 8 and an outlet pipe 9, and cylindrical two ends are semi arch, and water inlet pipe becomes parallel distribution to be fixed on the semi arch end of cylinder magnetic screen device 7 one ends with outlet pipe; And communicate with the inner chamber of cylinder magnetic screen device 7, make water inlet pipe, cylinder magnetic screen device 7 and outlet pipe form a cooling water circulation canal.
7 need of cylinder magnetic screen device are made several kinds of shapes that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
Embodiment three, shown in accompanying drawing 7, accompanying drawing 8; A kind of medium frequency induction heater magnetic shielding device; It comprises a cone magnetic screen device 10, a water inlet pipe 11 and an outlet pipe 12; 12 one-tenth parallel distributions of water inlet pipe 11 and outlet pipe are fixed on the big end of cone magnetic screen device 10, and communicate with the inner chamber of cone magnetic screen device 10, make water inlet pipe 11, cone magnetic screen device 10 and outlet pipe 12 form a cooling water circulation canal.
10 need of cone magnetic screen device are made several kinds of shapes that vary in size by the medium frequency induction heater hole shape, all size that just fully can the flexible configuration extra strong pipe.Magnetic shielding device can change the temperature that Distribution of Magnetic Field is regulated pipe end through in the medium frequency induction heater tail end, moving forward and backward, thereby makes its heats desirable more.
Claims (3)
1. medium frequency induction heater magnetic shielding device; It is characterized in that: it comprises a magnetic screen device, a water inlet pipe and an outlet pipe; Described magnetic screen device is the spheroid of sealing; Water inlet pipe becomes parallel distribution to be fixed on the spheroid magnetic screen device with outlet pipe, and communicates with the inner chamber of spheroid magnetic screen device, makes water inlet pipe, spheroid magnetic screen device and outlet pipe form a cooling water circulation canal.
2. a kind of medium frequency induction heater magnetic shielding device according to claim 1; It is characterized in that: described magnetic screen device is the cylinder of sealing; Cylindrical two ends are semi arch; Water inlet pipe becomes parallel distribution to be fixed on the semi arch end of cylinder magnetic screen device one end with outlet pipe, and communicates with the inner chamber of cylinder magnetic screen device, makes water inlet pipe, cylinder magnetic screen device and outlet pipe form a cooling water circulation canal.
3. a kind of medium frequency induction heater magnetic shielding device according to claim 1; It is characterized in that: described magnetic screen device is the cone of sealing; Water inlet pipe becomes parallel distribution to be fixed on the big end of cone magnetic screen device with outlet pipe; And communicate with the inner chamber of cone magnetic screen device, make water inlet pipe, cone magnetic screen device and outlet pipe form a cooling water circulation canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120336589 CN202261884U (en) | 2011-09-08 | 2011-09-08 | Magnetic shielding apparatus for intermediate frequency induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120336589 CN202261884U (en) | 2011-09-08 | 2011-09-08 | Magnetic shielding apparatus for intermediate frequency induction heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261884U true CN202261884U (en) | 2012-05-30 |
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ID=46123057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120336589 Expired - Lifetime CN202261884U (en) | 2011-09-08 | 2011-09-08 | Magnetic shielding apparatus for intermediate frequency induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542721A (en) * | 2016-12-07 | 2017-03-29 | 常熟建华模具科技股份有限公司 | Drift intermediate frequency induction heating device |
| CN108746976A (en) * | 2018-08-13 | 2018-11-06 | 合肥艾派特知识产权运营有限公司 | The anti-magnetic disturbance device of electron beam welding |
| CN108746975A (en) * | 2018-08-13 | 2018-11-06 | 合肥艾派特知识产权运营有限公司 | Magnetic shielding system for electron beam welding |
-
2011
- 2011-09-08 CN CN 201120336589 patent/CN202261884U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542721A (en) * | 2016-12-07 | 2017-03-29 | 常熟建华模具科技股份有限公司 | Drift intermediate frequency induction heating device |
| CN106542721B (en) * | 2016-12-07 | 2022-08-30 | 常熟建华模具科技股份有限公司 | Punch intermediate frequency induction heating device |
| CN108746976A (en) * | 2018-08-13 | 2018-11-06 | 合肥艾派特知识产权运营有限公司 | The anti-magnetic disturbance device of electron beam welding |
| CN108746975A (en) * | 2018-08-13 | 2018-11-06 | 合肥艾派特知识产权运营有限公司 | Magnetic shielding system for electron beam welding |
| CN108746976B (en) * | 2018-08-13 | 2020-05-01 | 林驰杰 | Anti-magnetic interference device for electron beam welding |
| CN108746975B (en) * | 2018-08-13 | 2020-05-19 | 江苏京沂电器有限公司 | Magnetic shielding system for electron beam welding |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |