CN213954627U - Flange structure of transformer bushing - Google Patents
Flange structure of transformer bushing Download PDFInfo
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- CN213954627U CN213954627U CN202023019912.3U CN202023019912U CN213954627U CN 213954627 U CN213954627 U CN 213954627U CN 202023019912 U CN202023019912 U CN 202023019912U CN 213954627 U CN213954627 U CN 213954627U
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- flange
- core body
- sealing
- release hole
- transformer bushing
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Abstract
The utility model discloses a flange structure of transformer bushing, belonging to the technical field of transformer bushing, comprising a core body and a flange of the transformer bushing, wherein the flange is sleeved on the core body, the outer periphery of the core body is formed with a step structure, the core body diameter at the upper end of the step structure is larger than the core body diameter at the lower end of the step structure, the inner periphery of the flange is formed with a step surface matched with the step structure of the core body, a sealing ring is arranged between the step structure and the step surface, the top end of the flange is provided with a sealing cover plate, one side of the sealing cover plate close to the core body is provided with a sealing groove, a sealing ring is arranged in the sealing groove, the bottom end of the flange is provided with an air release structure, the air release structure comprises a first air release hole and a second air release hole, the first air release hole is communicated with the second air release hole, the first air release hole is in threaded connection with an air release bolt, and a combined washer is sleeved on the air release bolt.
Description
Technical Field
The utility model relates to a transformer bushing technical field, concretely relates to transformer bushing's flange structure.
Background
At present, a flange structure of a transformer bushing is generally an open structure of an upper opening of a flange, so that a bushing flange sealing structure is arranged at an oil end, a sealing device is not arranged at an air end, and after the bushing flange leaks air, a field can not be repaired, and only a new bushing is replaced. In addition, with higher requirements on performance indexes of the transformer product, the transformer bushing flange structure in the prior art cannot meet the requirements of the power industry in the aspects of safety performance, sealing performance and the like, and the flange structure is urgently required to be improved to ensure the safe operation of a power grid.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a transformer bushing's flange structure changes single-end sealing into double-end through increasing sealed apron at sleeve pipe air end and seals, takes place to leak gas when the operation, need not on-the-spot more change the sleeve pipe, only change the air end sealing washer can, saved a large amount of manpower and materials, and through being equipped with sealing washer and combination packing ring, guaranteed the leakproofness of flange and sleeve pipe and gassing bolt.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a flange structure of a transformer bushing comprises a core body of the transformer bushing and a flange, wherein the flange is sleeved on the core body, a step structure is formed on the outer circumferential surface of the core body, the core body diameter at the upper end of the step structure is larger than the core body diameter at the lower end of the step structure, a step surface matched with the step structure of the core body is formed on the inner circumferential surface of the flange, a sealing ring is arranged between the step structure and the step surface, an injection glue layer is arranged between the flange and the core body at the upper end of the step structure, a sealing cover plate is arranged at the top end of the flange and fixed on the flange through screws, a sealing groove is arranged on one side of the sealing cover plate close to the core body, a sealing ring is arranged in the sealing groove, a gas discharging structure is arranged at the bottom end of the flange and comprises a first gas discharging hole and a second gas discharging hole, first gas release hole transversely sets up on the flange, the second gas release hole vertically sets up on the flange, first gas release hole with second gas release hole intercommunication, first gas release hole threaded connection has the gassing bolt, the cover is equipped with the combination packing ring on the gassing bolt.
Preferably, the flange is an aluminum alloy flange.
Preferably, the glue injection layer is an epoxy resin glue injection layer.
Preferably, the sealing ring is an O-ring.
Preferably, the combined gasket is a nitrile rubber combined gasket.
The utility model has the advantages of that:
1. the sealing cover plate is additionally arranged at the air end of the sleeve to change single-end sealing into double-end sealing, so that when air leakage occurs during operation, the sleeve does not need to be replaced on site, and only the sealing ring at the air end is replaced, thereby saving a large amount of manpower and material resources;
2. sealing rings are arranged between the sealing cover plate and the core body and between the step structure and the step surface, so that the sealing performance of the flange and the sleeve is ensured;
3. the combined gasket is used for replacing a sealing ring so as to ensure the sealing performance between the air bleeding bolt and the flange, the compression amount of the combined gasket can be ensured, and the sealing effect can also be ensured.
Drawings
Fig. 1 is the utility model relates to a transformer bushing's flange structure's overall structure schematic diagram.
In the figure: 1-core body, 2-flange, 3-step structure, 4-sealing ring, 5-glue injection layer, 6-sealing cover plate, 7-first air vent, 8-second air vent, 9-air vent bolt and 10-combined gasket.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the flange structure of the transformer bushing comprises a core 1 and a flange 2 of the transformer bushing, wherein the flange 2 is sleeved on the core 1, a step structure 3 is formed on the outer circumferential surface of the core 1, the diameter of the core 1 at the upper end of the step structure 3 is larger than that of the core 1 at the lower end of the step structure 3, a step surface matched with the step structure 3 of the core 1 is formed on the inner circumferential surface of the flange 2, a sealing ring 4 is arranged between the step structure 3 and the step surface, a glue injection layer 5 is arranged between the flange 2 and the core 1 at the upper end of the step structure 3, a sealing cover plate 6 is arranged at the top end of the flange 2, the sealing cover plate 6 is fixed on the flange 2 through screws, a sealing groove is arranged on one side of the sealing cover plate 6 close to the core 1, and a sealing ring 4 is arranged in the sealing groove, 2 bottoms of flange are equipped with the gassing structure, the gassing structure includes first gas pocket 7 and second gas pocket 8, first gas pocket 7 transversely sets up on the flange 2, second gas pocket 8 vertically sets up on the flange 2, first gas pocket 7 with second gas pocket 8 intercommunication, 7 threaded connection in first gas pocket have bleeder bolt 9, the cover is equipped with combination packing ring 10 on the bleeder bolt 9.
The flange 2 is an aluminum alloy flange. The glue injection layer 5 is an epoxy resin glue injection layer. The sealing ring 4 is an O-shaped sealing ring. The combined gasket 10 is a nitrile rubber combined gasket.
The top end of the flange 2 is fixedly provided with a sealing cover plate 6 through screws, so that the single-end sealing of the flange 2 is changed into double-end sealing, air leakage occurs during operation, and the sleeve does not need to be replaced on site. The sealing rings 4 are arranged between the sealing cover plate 6 and the core body 1 and between the step structure 3 and the step surface, so that the sealing performance of the flange 2 and the sleeve is ensured. The combined gasket 10 is sleeved on the air bleeding bolt 9 to ensure the sealing performance between the air bleeding bolt 9 and the flange 2, the compression amount of the combined gasket 10 can be ensured, and the sealing effect can also be ensured.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The flange structure of the transformer bushing is characterized by comprising a core body and a flange of the transformer bushing, wherein the flange is sleeved on the core body, a step structure is formed on the outer circumferential surface of the core body, the diameter of the core body at the upper end of the step structure is larger than that of the core body at the lower end of the step structure, a step surface matched with the step structure of the core body is formed on the inner circumferential surface of the flange, a sealing ring is arranged between the step structure and the step surface, a glue injection layer is arranged between the flange and the core body at the upper end of the step structure, a sealing cover plate is arranged at the top end of the flange and fixed on the flange through screws, a sealing groove is arranged on one side, close to the core body, of the sealing cover plate, a sealing ring is arranged in the sealing groove, an air release structure is arranged at the bottom end of the flange and comprises a first air release hole and a second air release hole, first gas release hole transversely sets up on the flange, the second gas release hole vertically sets up on the flange, first gas release hole with second gas release hole intercommunication, first gas release hole threaded connection has the gassing bolt, the cover is equipped with the combination packing ring on the gassing bolt.
2. The flange structure of the transformer bushing according to claim 1, wherein the flange is an aluminum alloy flange.
3. The flange structure of the transformer bushing according to claim 1, wherein the glue-injection layer is an epoxy resin glue-injection layer.
4. The flange structure of transformer bushing according to claim 1, wherein the sealing ring is an O-ring.
5. The flange structure of the transformer bushing according to claim 1, wherein the combination washer is a nitrile rubber combination washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023019912.3U CN213954627U (en) | 2020-12-15 | 2020-12-15 | Flange structure of transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023019912.3U CN213954627U (en) | 2020-12-15 | 2020-12-15 | Flange structure of transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213954627U true CN213954627U (en) | 2021-08-13 |
Family
ID=77216354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023019912.3U Active CN213954627U (en) | 2020-12-15 | 2020-12-15 | Flange structure of transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213954627U (en) |
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2020
- 2020-12-15 CN CN202023019912.3U patent/CN213954627U/en active Active
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