CN201655511U - Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing - Google Patents
Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing Download PDFInfo
- Publication number
- CN201655511U CN201655511U CN2010201707835U CN201020170783U CN201655511U CN 201655511 U CN201655511 U CN 201655511U CN 2010201707835 U CN2010201707835 U CN 2010201707835U CN 201020170783 U CN201020170783 U CN 201020170783U CN 201655511 U CN201655511 U CN 201655511U
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- China
- Prior art keywords
- porcelain
- transformer
- insulator
- sealing gasket
- gland
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Abstract
The utility model discloses a novel anti-ageing and oil-seepage prevention low-voltage transformer bushing comprising an upper porcelain bushing (6) and a porcelain gland (4) sequentially arranged on a transformer box cover (7), a lower porcelain bushing (9) located inside an oil tank below the transformer box cover, and a conducting rod (1) sequentially passing through the porcelain gland, the upper porcelain bushing and the lower porcelain bushing, wherein the two ends of the conducting rod are respectively connected with the porcelain gland (4) and the lower porcelain bushing (9) in a fastening and sealing manner; a sealing gasket (8) is arranged between the upper porcelain bushing and the transformer box cover; and a conical hollow cavity (12), in which a conical sealing gasket (5) is arranged, is formed in the contact surface of the porcelain gland and the upper porcelain bushing. By arranging the conical sealing gasket inside the contact surface of the porcelain gland and the upper porcelain bushing and arranging the sealing gasket in the hollow cavity formed by the contact surface of the upper porcelain bushing and the transformer box cover, the utility model can improve the sealing performance of the porcelain bushings and prevent the sealing gaskets from being exposed on the transformer box cover, thus ensuring the attractive and elegant appearance, preventing the conical gasket from being radiated by ultraviolet light and corroded by chemical substances and other harmful substances, ensuring that the conical sealing gasket is resistant to ageing, guaranteeing that the transformer is oil-tight within the operation for a long time, and guaranteeing the normal use of the transformer.
Description
Technical field
The utility model relates to transformer accessory in the distrbution network, especially relates to bushing shell for transformer.
Background technology
According to the Eleventh Five-Year Plan requirement that national GDP energy consumption requirement declines to a great extent, the transformer that domestic power consumption is big is progressively eliminated, and new energy-economic transformer is produced in a large number.The output surge of transformer, specification requirement to transformer is more and more higher. and present China's transformer and porcelain shell for transformer pipe are in the middle of producing and moving, the common problem that has the transformer leakage of oil, its main cause: the one, the porcelain bushing project organization is unreasonable, can not adapt to new technical matters requirement; The 2nd, there is structural defect in the sealing of porcelain bushing and transformer case lid, porcelain bushing and conducting rod, not only the narrow but also sealing gasket of sealing surface is exposed, along with the increase of service time and the variation of environment for use, exposed sealing gasket by Exposure to Sunlight, ultraviolet irradiation, drench with rain, the erosion of moisture and chemical substance, the surface is ageing hardening progressively, follow the string, even take place to rot, the loss of seal ability produces the seepage of transformer oil then, influence the normal operation of transformer, produce the damage accident when serious.
The utility model content
At the problem that above-mentioned bushing shell for transformer exists, the utility model has designed a kind of good seal performance, and the sealing face width, and sealing gasket is not exposed, installs and fixes conveniently, and is aesthetic in appearance generous, the aging grease proofing low-tension transformer sleeve pipe that oozes of the novel anti that manufacturing cost is low again.
The technical scheme that the technical problems to be solved in the utility model is taked is: the aging grease proofing low-tension transformer sleeve pipe that oozes of described novel anti comprises last insulator and the porcelain gland that is arranged on transformer tank and covers, the following insulator that is positioned at transformer case lid below fuel tank and the conducting rod that passes porcelain gland, last insulator and following insulator successively, the conducting rod two ends link to each other with following insulator fit sealing with the porcelain gland respectively, be provided with sealing gasket between last insulator and the transformer case lid, in porcelain gland and last insulator contact-making surface, be provided with conical cavity, in conical cavity, be provided with conical sealing gasket.
Conical cavity in described porcelain gland and the last insulator contact-making surface can be formed by the cavity combinations that is arranged on porcelain gland lower surface and last insulator upper surface; Also can be by forming by the cavity that is arranged on porcelain gland lower surface or last insulator upper surface separately.
It is more convenient for porcelain bushing is installed, install and fix more reliable, be provided with groove in the insulator lower surface down, the conducting rod of described groove location correspondence is provided with the convex clip that can embed in the groove, described groove and convex clip cross section are quincunx, also can be in-line, cross or box-shaped certainly.During installation the activity of the convex clip on the conducting rod is embedded in the groove, to play the insulator circumference to erect simultaneously and cut two parallel tangent planes, parallel cut surface is put into the transformer case lid card article that presets, it is installed firmly not can left rotation and right rotation, then conducting rod passed down insulator, transformer case lid from bottom to up, go up insulator and porcelain lid, from last fastening nut, connection is installed in bobbin seal then, and can reduce and make and installation cost.
The utility model is arranged between porcelain gland and the last insulator owing to having now, the O grommet type seal that is used for the conducting rod sealing is designed to conical sealing gasket, and conical sealing gasket placed in porcelain gland and the last insulator contact-making surface and with sealing gasket insert in insulator and the formed cavity of transformer case lid contact-making surface, change that to expose oil sealing be built-in oil sealing, conical sealing gasket is not exposed, thereby cover at transformer tank and cannot see sealing gasket, both elegant in appearance, make conical sealing gasket can not be subjected to the corrosion of harmful substances such as ultraviolet ray and chemistry again, it is aging to guarantee that conical sealing gasket is difficult for, ensure that transformer works long hours and oil-proof, guarantee the normal use of transformer; Change original O type sealing into the coned face sealing simultaneously, also can avoid the sealing of O type, improved the sealing property of porcelain bushing owing to the uneven problem of the sealing that exists the gap to bring between porcelain bushing and the conducting rod.
Novel anti described in the utility model is aging grease proofingly oozes the low-tension transformer sleeve pipe to be widely used in electric current is 100-5000A, and voltage is to use in the transformer of 1KV series.
Description of drawings
Fig. 1 is a structural representation intention of the present utility model.
In the drawings 1, conducting rod 2, nut 3, packing ring 4, porcelain gland 5, conical sealing gasket 6, go up insulator 7, transformer case lid 8, sealing gasket 9, insulator 10, convex clip 11, groove 12, conical cavity down
Embodiment
In Fig. 1, the described anti-aging grease proofing low-tension transformer sleeve pipe that oozes comprises porcelain gland 4, last insulator 6, following insulator 9 and pass the porcelain gland successively, the conducting rod 1 of last insulator and following insulator, described porcelain gland, last insulator and following insulator are all made with ceramic material, described conducting rod 1 TBE (threaded both ends), described insulator 9 down is arranged in the fuel tank (figure does not draw) of transformer case lid 7 belows, between last insulator and transformer case lid contact-making surface, cylindrical cavity (not marking among the figure) is set, this cavity all is arranged on the insulator lower surface, in this cavity, be provided with sealing gasket 8, described sealing gasket is a rubber, also can be the sealing gasket of other material.The 4 not glazings of lower surface of porcelain gland, in porcelain gland 4 and last insulator 6 contact-making surfaces, be provided with a conical cavity 12, conical cavity lay respectively in the porcelain gland lower surface and last insulator upper surface in, in conical cavity, be provided with conical sealing gasket 5, by the nut 2 of tightening the conducting rod two ends and the packing ring 3 that passes through the conducting rod two ends, both can make the conducting rod two ends all realize sealing with porcelain gland upper surface and following insulator lower surface respectively, make porcelain gland lower surface and last insulator upper surface again and go up the insulator lower surface and in mutually close, seal by the conical sealing gasket on it 5 and its sealing gasket 8 realizations down with the transformer case lid, it is near being preferably in below the 1mm at interval, thereby cover at transformer tank and can't see the conical sealing gasket that exposes after compressing, it is firm so both to have sealed, conical sealing gasket in two cavitys is not exposed, be not afraid of wind and weather, the sun shines, effectively prevent ultraviolet ray, chemical substance is to the infringement of conical sealing gasket, prevent that conical sealing gasket is aging, prevent the outside seepage of transformer oil, in addition, because following insulator 9 lower surfaces are provided with cross section and are quincuncial groove 11, be quincuncial convex clip 10 with also being provided with on the corresponding conducting rod of groove, in the movable embedding groove of convex clip, because insulator directly is provided with conducting rod plum blossom groove and directly erects on the circle tangent plane and cut two taper shapes down, reduce the length of conducting rod and effective external diameter of following insulator, reduced manufacturing and installation cost.
Claims (3)
1. the aging grease proofing low-tension transformer sleeve pipe that oozes of novel anti, it comprises last insulator (6) and the porcelain gland (4) that is successively set on the transformer case lid (7), be positioned at the following insulator (9) of transformer case lid below fuel tank and pass the porcelain gland successively, the conducting rod (1) of last insulator and following insulator, described conducting rod two ends link to each other with following insulator (9) fit sealing with porcelain gland (4) respectively, described going up between insulator and the transformer case lid is provided with sealing gasket (8), it is characterized in that: in porcelain gland and last insulator contact-making surface, be provided with conical cavity (12), in conical cavity, be provided with conical sealing gasket (5).
2. the novel anti according to claim 1 grease proofing low-tension transformer sleeve pipe that oozes that wears out, it is characterized in that: insulator (9) lower surface is provided with groove (11) down, and the conducting rod of described groove location correspondence (1) is provided with the convex clip (10) that can embed in the groove.
3. the novel anti according to claim 2 grease proofing low-tension transformer sleeve pipe that oozes that wears out is characterized in that: described groove (11) and convex clip (10) cross section are quincunx, box-shaped, in-line or cross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201707835U CN201655511U (en) | 2010-04-25 | 2010-04-25 | Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201707835U CN201655511U (en) | 2010-04-25 | 2010-04-25 | Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655511U true CN201655511U (en) | 2010-11-24 |
Family
ID=43120755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201707835U Expired - Fee Related CN201655511U (en) | 2010-04-25 | 2010-04-25 | Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655511U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496443A (en) * | 2011-12-12 | 2012-06-13 | 辽宁省电力有限公司锦州供电公司 | Sleeve of distribution transformer |
| CN103413659A (en) * | 2013-09-02 | 2013-11-27 | 丹阳市金诺电器有限公司 | Combined type 1-KV level transformer bushing |
| CN103456474A (en) * | 2013-09-29 | 2013-12-18 | 丹阳市金诺电器有限公司 | Combined low-voltage bushing of transformer |
-
2010
- 2010-04-25 CN CN2010201707835U patent/CN201655511U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496443A (en) * | 2011-12-12 | 2012-06-13 | 辽宁省电力有限公司锦州供电公司 | Sleeve of distribution transformer |
| CN102496443B (en) * | 2011-12-12 | 2014-06-25 | 辽宁省电力有限公司锦州供电公司 | Sleeve of distribution transformer |
| CN103413659A (en) * | 2013-09-02 | 2013-11-27 | 丹阳市金诺电器有限公司 | Combined type 1-KV level transformer bushing |
| CN103413659B (en) * | 2013-09-02 | 2016-08-17 | 丹阳市金诺电器有限公司 | A kind of combination type 1KV level bushing shell for transformer |
| CN103456474A (en) * | 2013-09-29 | 2013-12-18 | 丹阳市金诺电器有限公司 | Combined low-voltage bushing of transformer |
| CN103456474B (en) * | 2013-09-29 | 2016-03-30 | 丹阳市金诺电器有限公司 | A kind of combined transformer low-tension bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: PingXiang City HuaPeng Electric Porcelaneous Manufacture Limited Company Assignor: Xiong Huizhen Contract record no.: 2012360000008 Denomination of utility model: Novel anti-ageing and oil-seepage prevention low-voltage transformer bushing Granted publication date: 20101124 License type: Exclusive License Record date: 20120307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20190425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |