CN219998027U - Novel power transformer high-voltage bushing outgoing flange plate structure - Google Patents
Novel power transformer high-voltage bushing outgoing flange plate structure Download PDFInfo
- Publication number
- CN219998027U CN219998027U CN202321486915.9U CN202321486915U CN219998027U CN 219998027 U CN219998027 U CN 219998027U CN 202321486915 U CN202321486915 U CN 202321486915U CN 219998027 U CN219998027 U CN 219998027U
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- flange plate
- flange
- wire outlet
- outlet hole
- plate body
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- 238000003466 welding Methods 0.000 claims abstract description 25
- 239000011324 bead Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a novel power transformer high-voltage bushing outgoing flange plate structure, and belongs to the technical field of large-scale transformer manufacturing. The technical proposal is as follows: the transformer oil tank is characterized in that a wire outlet hole (7) is formed in a tank cover (4) of the transformer oil tank, a tank cover opening round corner (6) is formed in the lower edge of the circumference of the wire outlet hole (7), the inner diameter of a flange plate body (2) is smaller than that of the wire outlet hole (7), the flange plate body (2) is arranged on the tank cover (4) above the wire outlet hole (7), a flange plate round corner (5) is formed in the lower edge of the circumference of an inner hole of the flange plate body (2), and the lower plane of the flange plate body (2) is attached to the tank cover (4) and fixedly connected with the tank cover through a welding bead (3); the high-voltage sleeve (1) penetrates through the box cover (4) from the transformer oil tank through the wire outlet hole (7) and the flange plate body (2). The fillet structure of the flange plate and the box cover can effectively shield the sharp corner area at the welding seam, prevent the occurrence of discharge phenomenon, and has the advantages of small welding bead, small welding workload and good processing effect.
Description
Technical Field
The utility model relates to a novel power transformer high-voltage bushing outgoing flange plate structure, and belongs to the technical field of large-scale transformer manufacturing.
Background
The voltage class of the outgoing line of the high-voltage bushing of the power transformer is high, and the phenomenon of discharging the outgoing line of the metal area with the closed sharp angle is easy. The welding part of the flange plate and the box cover at the outlet of the high-voltage sleeve in the prior art is required to be filled with a welding bead of 10-30mm (determined according to the thickness of the box cover), and then the welding bead, the flange plate and the box cover are polished to be smooth. The problems are: the welding workload is large, and the later polishing and forming effects are not ideal; and a sharp corner area exists at the welding seam between the flange plate and the box cover, so that a discharge phenomenon can occur.
Disclosure of Invention
The utility model aims to provide a novel power transformer high-voltage bushing outgoing flange structure, which has small welding workload, does not have a sharp corner region between a flange and a box cover, avoids discharge phenomenon, has good processing effect and solves the technical problems existing in the prior art.
The technical scheme of the utility model is as follows:
a novel power transformer high-voltage bushing outgoing line flange structure comprises a flange body and a box cover, wherein an outgoing line hole is formed in the box cover of a transformer oil box, a round angle is formed in the lower edge of the circumference of the outgoing line hole, the inner diameter of the flange body is smaller than the inner diameter of the outgoing line hole, the flange body is arranged on the box cover above the outgoing line hole, a round angle is formed in the lower edge of the circumference of the inner hole of the flange body, and the lower plane of the flange body is attached to the box cover and fixedly connected through a welding bead; the high-voltage sleeve penetrates through the box cover from the transformer oil tank through the wire outlet hole and the flange plate body.
The radius of the flange disc fillet is larger than the radius of the case cover opening fillet. The inner diameter of the wire outlet hole is 40mm larger than that of the flange plate body.
The weld bead is positioned between the upper edge of the circumference of the wire outlet hole and the lower plane of the flange plate body.
The welding bead is not overlapped with the flange round angle.
The utility model has the positive effects that: the fillet structure of the flange plate and the box cover can effectively shield the sharp corner area at the welding seam, prevent the occurrence of discharge phenomenon, and has the advantages of small welding bead, small welding workload and good processing effect.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
in the figure: the high-voltage bushing comprises a high-voltage bushing 1, a flange body 2, a welding bead 3, a box cover 4, a flange fillet 5, a box cover open pore fillet 6 and a wire outlet hole 7.
Detailed Description
The utility model is further described by way of examples with reference to the accompanying drawings.
A novel power transformer high-voltage bushing wire-outgoing flange structure comprises a flange body 2 and a box cover 4, wherein a wire-outgoing hole 7 is formed in the box cover 4 of a transformer oil box, a round corner 6 is formed in the lower circumference edge of the wire-outgoing hole 7, the inner diameter of the flange body 2 is smaller than that of the wire-outgoing hole 7, the flange body 2 is arranged on the box cover 4 above the wire-outgoing hole 7, a round corner 5 is formed in the lower circumference edge of an inner hole of the flange body 2, and the lower plane of the flange body 2 is attached to the box cover 4 and fixedly connected with the box cover through a welding bead 3; the high-voltage sleeve 1 passes through the tank cover 4 from the transformer oil tank through the wire outlet hole 7 and the flange plate body 2.
The radius of the flange circular bead 5 is larger than that of the case cover opening circular bead 6. The inner diameter of the wire outlet hole 7 is 40mm larger than the inner diameter of the flange plate body 2.
The welding bead 3 is positioned between the upper edge of the circumference of the wire outlet 7 and the lower plane of the flange body 2.
The welding bead 3 is not overlapped with the flange round angle 5.
In this embodiment, the radius of the flange fillet 5 is 30mm, the radius of the case cover opening fillet 6 is 10mm, and the inner diameter of the wire outlet hole 7 is 40mm larger than the inner diameter of the flange body 2. The welding bead with the width of 8mm can be welded between the flange plate and the box cover, the corner area at the welding seam can be effectively shielded by the round corner structure of the flange plate and the box cover, the occurrence of discharge phenomenon is prevented, the welding bead is small, the welding workload is small, and the processing effect is good.
Claims (3)
1. Novel power transformer high-voltage bushing outgoing flange structure, its characterized in that: the transformer oil tank comprises a flange body (2) and a tank cover (4), wherein a wire outlet hole (7) is formed in the tank cover (4) of the transformer oil tank, a tank cover opening round corner (6) is formed in the lower edge of the circumference of the wire outlet hole (7), the inner diameter of the flange body (2) is smaller than that of the wire outlet hole (7), the flange body (2) is arranged on the tank cover (4) above the wire outlet hole (7), a flange round corner (5) is formed in the lower edge of the circumference of an inner hole of the flange body (2), and the lower plane of the flange body (2) is attached to the tank cover (4) and fixedly connected with the tank cover through a welding bead (3); the high-voltage sleeve (1) penetrates through the box cover (4) from the transformer oil tank through the wire outlet hole (7) and the flange plate body (2).
2. The novel power transformer high-voltage bushing outgoing flange structure according to claim 1, wherein: the radius of the flange round angle (5) is larger than that of the box cover open round angle (6); the inner diameter of the wire outlet hole (7) is 40mm larger than that of the flange plate body (2).
3. The novel power transformer high-voltage bushing outgoing flange structure according to claim 1, wherein: the welding bead (3) is positioned between the upper edge of the circumference of the wire outlet hole (7) and the lower plane of the flange plate body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321486915.9U CN219998027U (en) | 2023-06-12 | 2023-06-12 | Novel power transformer high-voltage bushing outgoing flange plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321486915.9U CN219998027U (en) | 2023-06-12 | 2023-06-12 | Novel power transformer high-voltage bushing outgoing flange plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219998027U true CN219998027U (en) | 2023-11-10 |
Family
ID=88615402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321486915.9U Active CN219998027U (en) | 2023-06-12 | 2023-06-12 | Novel power transformer high-voltage bushing outgoing flange plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219998027U (en) |
-
2023
- 2023-06-12 CN CN202321486915.9U patent/CN219998027U/en active Active
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