CN203812702U - Oilpaper capacitance type transformer bushing - Google Patents
Oilpaper capacitance type transformer bushing Download PDFInfo
- Publication number
- CN203812702U CN203812702U CN201420122168.5U CN201420122168U CN203812702U CN 203812702 U CN203812702 U CN 203812702U CN 201420122168 U CN201420122168 U CN 201420122168U CN 203812702 U CN203812702 U CN 203812702U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- base
- sealing ring
- type transformer
- exterior seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to the technical field of transformer bushings, and discloses an oilpaper capacitance type transformer bushing. The oilpaper capacitance type transformer bushing comprises an epoxy glass steel sleeve, a base matching with the inner side of the epoxy glass steel sleeve, a conductive rod arranged on the inner side of the base, a conductive rod sealing ring arranged on the outer side of the conductive rod, an outer sealing ring and an inner sealing ring both arranged between the conductive rod sealing ring and the inner side of the base; the outer sealing ring is in contact with the inner side of the base; the inner sealing ring is in contact with the outer side of the conductive rod sealing ring; multiple outer sealing ring grooves are arranged in the axial direction of the outer sealing ring; multiple inner sealing ring convex blocks mutually matching with the outer sealing ring grooves are arranged in the axial direction of the inner sealing ring; a limiting mechanism for limiting the axial movement of both the inner sealing ring and the outer sealing ring is also arranged on the base. The oilpaper capacitance type transformer bushing greatly improves the sealing performance, enables parts inside the bushing to be closely stuck together, avoids water inflow which affects normal use of the transformer bushing, and improves reliability and safety.
Description
Technical field
The utility model relates to bushing shell for transformer technical field, more particularly, and particularly a kind of oil-impregnated paper condenser type transformer bushing.
Background technology
Bushing shell for transformer environmental condition is in use very harsh, is subject to many-sided integrated environment impact such as voltage, electric current, pulling force, vibrations, wind-force, atmosphere filth when operation, once produce fault, very easily causes fault spread and loss serious.Wherein inside pipe casing intake be still incipient failure occur main cause, mostly be catastrophic discontinuityfailure, harmfulness is very big, this is because the sealed bottom structure of sleeve pipe is unreliable, as existing structure comprises lower insulator, base, central guiding fulgurite and seal, when installation, between each part, to place sealing ring and carry out press seal, such structure is owing to being self-existent between each part, its sealing property is poor, easily causes having affected into water the normal use of bushing shell for transformer.
Utility model content
The purpose of this utility model is to provide a kind of sealing property high and can improve the oil-impregnated paper condenser type transformer bushing of security performance.
In order to solve problem set forth above, the technical solution adopted in the utility model is: a kind of oil-impregnated paper condenser type transformer bushing, comprise epoxy glass fiber reinforced plastic cylinder, the base coordinating with epoxy glass fiber reinforced plastic cylinder inner side, be arranged on the conducting rod of base inner side, it also comprises the conducting rod sealing ring that is arranged on conducting rod outside, be arranged on exterior seal ring and inner seal ring between conducting rod sealing ring and base inner side, described exterior seal ring contacts with the inner side of base, described inner seal ring contacts with the outside of conducting rod sealing ring, described exterior seal ring be axially arranged with multiple exterior seal ring grooves, described inner seal ring be axially arranged with the inner seal ring projections that multiple and exterior seal ring groove cooperatively interact, and on base, be also provided with the described exterior seal ring of restriction and the axially movable position-limit mechanism of inner seal ring.
According to a preferred embodiment of the present utility model: described position-limit mechanism comprises the block that is arranged on base top and contacts with the top of exterior seal ring and inner seal ring, be arranged on base bottom the gland tactile with the bottom connection of exterior seal ring and inner seal ring, be arranged on the step of conducting rod bottom, be arranged on the jump ring in step, and be arranged on the clamp between gland and jump ring.
According to a preferred embodiment of the present utility model: the bottom of described base is provided with base groove, and described gland is provided with the gland projection cooperatively interacting with base groove.
According to a preferred embodiment of the present utility model: be also provided with gap between the lower outside of described exterior seal ring and base.
According to a preferred embodiment of the present utility model: the contact-making surface of the exterior seal ring groove of described exterior seal ring and the inner seal ring projection of inner seal ring is arc contact surface.
According to a preferred embodiment of the present utility model: the top of described gland is also provided with the boss tactile with the bottom connection of conducting rod sealing ring.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by being provided with conducting rod sealing ring in the outside of conducting rod, and between base and conducting rod sealing ring, be provided with the version of inner seal ring and exterior seal ring, improve greatly sealing property, each part in sleeve pipe can be fit together closely, avoid water inlet and affected the normal use of bushing shell for transformer, improved reliability and fail safe.
Brief description of the drawings
Fig. 1. be the structural representation of oil-impregnated paper condenser type transformer bushing of the present utility model.
Description of reference numerals: 1, conducting rod, 2, epoxy glass fiber reinforced plastic cylinder, 3, base, 4, exterior seal ring, 5, inner seal ring, 6, conducting rod sealing ring, 7, gland, 8, clamp, 9, jump ring, 10, boss, 11, gland projection, 12, base groove, 13, gap, 14, inner seal ring projection, 15, exterior seal ring groove, 16, block.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Consult shown in Fig. 1, the utility model provides a kind of oil-impregnated paper condenser type transformer bushing, comprise epoxy glass fiber reinforced plastic cylinder 2, the base 3 coordinating with epoxy glass fiber reinforced plastic cylinder 2 inner sides, be arranged on the conducting rod 1 of base 3 inner sides, it also comprises the conducting rod sealing ring 6 that is arranged on conducting rod 1 outside, be arranged on exterior seal ring 4 and inner seal ring 5 between conducting rod sealing ring 6 and base 3 inner sides, described exterior seal ring 4 contacts with the inner side of base 3, described inner seal ring 5 contacts with the outside of conducting rod sealing ring 6, described exterior seal ring 4 be axially arranged with multiple exterior seal ring grooves 15, described inner seal ring 5 be axially arranged with the inner seal ring projections 14 that multiple and exterior seal ring groove 15 cooperatively interact, and on base 3, be also provided with the described exterior seal ring 4 of restriction and the axially movable position-limit mechanism of inner seal ring 5.Due to the cooperatively interacting of multiple inner seal ring projections 14 and exterior seal ring groove 15, form circulating hermetically-sealed construction like this, improved greatly sealing property, avoided entering of moisture content.
Position-limit mechanism in the utility model comprises the block 16(and base 3 integral structures that are arranged on base 3 tops and contact with the top of exterior seal ring 4 and inner seal ring 5), be arranged on base 3 bottoms the gland 7 tactile with the bottom connection of exterior seal ring 4 and inner seal ring 5, be arranged on the step of conducting rod 1 bottom, be arranged on the jump ring 9 in step, and be arranged on the clamp 8 between gland 7 and jump ring 9.
For convenient, the axial location of conducting rod sealing ring 6 is limited, the utility model is also provided with the boss 10 tactile with the bottom connection of conducting rod sealing ring 6 at the top of described gland 7, boss 10 specifically with the top integral structure of gland 7.
In order further to improve the axial location limitation function to exterior seal ring 4 and inner seal ring 5, the utility model is provided with base groove 12 in the bottom of base 3, on described gland 7, be provided with the gland projection 11 cooperatively interacting with base groove 12, such structure has been avoided the skew of gland 7, can better limit the position of exterior seal ring 4 and inner seal ring 5.
For the convenient installation to exterior seal ring 4 and inner seal ring 5, the utility model is also provided with gap 13 between the lower outside of described exterior seal ring 4 and base 3.
The utility model is arc contact surface at the exterior seal ring groove 15 of exterior seal ring 4 with the contact-making surface of the inner seal ring projection 14 of inner seal ring 5, arc contact surface has improved the contact area of exterior seal ring groove 15 and inner seal ring projection 14, has better improved sealing property.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (6)
1. an oil-impregnated paper condenser type transformer bushing, comprise epoxy glass fiber reinforced plastic cylinder (2), the base (3) coordinating with epoxy glass fiber reinforced plastic cylinder (2) inner side, be arranged on the conducting rod (1) of base (3) inner side, it is characterized in that: also comprise the conducting rod sealing ring (6) that is arranged on conducting rod (1) outside, be arranged on exterior seal ring (4) and inner seal ring (5) between conducting rod sealing ring (6) and base (3) inner side, described exterior seal ring (4) contacts with the inner side of base (3), described inner seal ring (5) contacts with the outside of conducting rod sealing ring (6), described exterior seal ring (4) be axially arranged with multiple exterior seal ring grooves (15), described inner seal ring (5) be axially arranged with the inner seal ring projections (14) that multiple and exterior seal ring groove (15) cooperatively interact, and on base (3), be also provided with the described exterior seal ring of restriction (4) and the axially movable position-limit mechanism of inner seal ring (5).
2. oil-impregnated paper condenser type transformer bushing according to claim 1, it is characterized in that: described position-limit mechanism comprises the block (16) that is arranged on base (3) top and contacts with the top of exterior seal ring (4) and inner seal ring (5), be arranged on base (3) bottom the gland (7) tactile with the bottom connection of exterior seal ring (4) and inner seal ring (5), be arranged on the step of conducting rod (1) bottom, be arranged on the jump ring (9) in step, and be arranged on the clamp (8) between gland (7) and jump ring (9).
3. oil-impregnated paper condenser type transformer bushing according to claim 2, is characterized in that: the bottom of described base (3) is provided with base groove (12), and described gland (7) is provided with the gland projection (11) cooperatively interacting with base groove (12).
4. oil-impregnated paper condenser type transformer bushing according to claim 1, is characterized in that: between the lower outside of described exterior seal ring (4) and base (3), be also provided with gap (13).
5. oil-impregnated paper condenser type transformer bushing according to claim 1, is characterized in that: the exterior seal ring groove (15) of described exterior seal ring (4) is arc contact surface with the contact-making surface of the inner seal ring projection (14) of inner seal ring (5).
6. oil-impregnated paper condenser type transformer bushing according to claim 2, is characterized in that: the top of described gland (7) is also provided with the boss (10) tactile with the bottom connection of conducting rod sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122168.5U CN203812702U (en) | 2014-03-18 | 2014-03-18 | Oilpaper capacitance type transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122168.5U CN203812702U (en) | 2014-03-18 | 2014-03-18 | Oilpaper capacitance type transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812702U true CN203812702U (en) | 2014-09-03 |
Family
ID=51451422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122168.5U Expired - Fee Related CN203812702U (en) | 2014-03-18 | 2014-03-18 | Oilpaper capacitance type transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812702U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| CN108692191A (en) * | 2018-04-28 | 2018-10-23 | 陇东学院 | A kind of Household tap water pipe preventing water leakage monitoring system |
| WO2019144293A1 (en) * | 2018-01-23 | 2019-08-01 | Abb Schweiz Ag | A sealing arrangement for a bushing and a bushing with such a sealing arrangement |
-
2014
- 2014-03-18 CN CN201420122168.5U patent/CN203812702U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| WO2019144293A1 (en) * | 2018-01-23 | 2019-08-01 | Abb Schweiz Ag | A sealing arrangement for a bushing and a bushing with such a sealing arrangement |
| US11769611B2 (en) | 2018-01-23 | 2023-09-26 | Hitachi Energy Switzerland Ag | Sealing arrangement for a bushing and a bushing with such a sealing arrangement |
| CN108692191A (en) * | 2018-04-28 | 2018-10-23 | 陇东学院 | A kind of Household tap water pipe preventing water leakage monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20200318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |