CN203311982U - Oil-immersed transformer - Google Patents
Oil-immersed transformer Download PDFInfo
- Publication number
- CN203311982U CN203311982U CN2013203576466U CN201320357646U CN203311982U CN 203311982 U CN203311982 U CN 203311982U CN 2013203576466 U CN2013203576466 U CN 2013203576466U CN 201320357646 U CN201320357646 U CN 201320357646U CN 203311982 U CN203311982 U CN 203311982U
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- CN
- China
- Prior art keywords
- cover plate
- oil
- transformer
- fuel tank
- sealing ring
- 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
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Abstract
The utility model discloses an oil-immersed transformer which comprises an oil tank and a cover plate, wherein a protection cavity is formed in the oil tank; a tank edge integrally wound on the opening end surface of the oil tank is arranged on the oil tank; the tank edge and the cover plate are fixedly connected through a fastening piece; a seal ring is arranged between the tank edge and the cover plate; bumps integrally formed with the cover plate stretch on the periphery of the cover plate relative to the oil tank; every two bumps are integrally arranged. The transformer has the advantages that through the arrangement of the bumps on the cover plate to keep off the irradiation on the seal ring by solar ultraviolet, the seal ring is prevented from being aged, the service life of the seal ring is prolonged, the hidden trouble of sealing oil leaked in the transformer is reduced, the maintenance cost is reduced, and the reliability of the transformer is improved.
Description
Technical field
The utility model relates to the potential device field, relates in particular to a kind of oil-filled transformer.
Background technology
The oil-immersed power transformer leakage of oil is the long-standing quality problems of transformer industry.Technique tackling key problem through nearly ten years, obtained effect preferably.But compare with the like product of external industrially developed country, leakage of oil also fundamentally is not resolved, middle-size and small-size manufacturer particularly, the problem existed in this respect is more general, and Leakage in Transformer oil mostly occurs in commissure, sealing surface and encapsulant etc. are located.Be sealed in Leakage in Transformer oil and be more common a kind of phenomenon, between transformer cover plate and case edge, be provided with sealing ring and positive stop strip, at case along under bolt fastening, sealing ring is crushed, owing between transformer cover plate and case edge, not taking measures, under the irradiation of ultraviolet ray to sealing ring of the sun, sealing ring is easy to aging, transformer seal leak oil phenomenon occurs, increased maintenance cost, reduced the reliability of transformer.
The utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of oil-filled transformer that can prevent that sealing ring is aging.
For achieving the above object; the utility model provides following technical scheme: a kind of oil-filled transformer; comprise fuel tank and cover plate; in described fuel tank, be provided with the protection chamber; described fuel tank is provided with the case edge of one winding at the fuel tank open end, and described case edge is fixedly connected with by securing member with cover plate, is provided with sealing ring between case edge and cover plate; the relative fuel tank direction of described cover plate surrounding is extended with and the integrated projection of cover plate, and described projection is integrated setting between any two.
By adopting technique scheme, by the projection arranged on cover plate, blocked the irradiation of the ultraviolet ray of the sun to sealing ring, prevent that sealing ring is aging, extended the useful life of sealing ring, reduce the hidden danger of transformer seal leak oil, reduced maintenance cost, improved the reliability of transformer; In addition, projection, except preventing the irradiation of ultraviolet ray to sealing ring, also prevents effectively that rainwater, dust etc. from entering into fuel tank by the gap between cover plate and case edge.
The utility model further is set to: described fuel tank is provided with and the inert gas inflation inlet of protecting chamber to be communicated with.
By adopting technique scheme, because the inert gas inflation inlet is communicated with the protection chamber, after to the inert gas inflation inlet, being filled with inert gas; indifferent gas cognition moves in the protection chamber; can prevent that air from entering, stop the transformer oil oxidation and make moist, slow down oil deterioration speed.
The utility model further is set to: described inert gas is argon gas.
By adopting technique scheme, argon gas is the very wide rare gas of current industrial application, and its character is torpescence very, can not burn, also not combustion-supporting, can be used as protection gas and prevents the transformer oil oxidation and make moist.
The utlity model has following advantage: blocked the irradiation of the ultraviolet ray of the sun to sealing ring by the projection arranged on cover plate, prevent that sealing ring is aging, extended the useful life of sealing ring, reduced the hidden danger of transformer seal leak oil, reduce maintenance cost, improved the reliability of transformer; And inert gas inflation inlet and the protection setting that is communicated with of chamber make to protect in chamber to be full of nitrogen and to prevent that effectively air from entering, prevention transformer oil oxidation and making moist, finally slowed down oil deterioration speed.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model oil-filled transformer.
In figure: 1, fuel tank; 2, cover plate; 3, protection chamber; 4, case edge; 5, inert gas inflation inlet; 6, projection.
Embodiment
With reference to shown in Figure 1; the oil-filled transformer of the present embodiment; comprise fuel tank 1 and cover plate 2; in described fuel tank 1, be provided with protection chamber 3; described fuel tank 1 be provided with the one winding at the case of fuel tank 1 open end along 4, described case is fixedly connected with by securing member with cover plate 2 along 4, case along 4 and cover plate 2 between be provided with sealing ring; relative fuel tank 1 direction of described cover plate 2 surrounding is extended with and the integrated projection 6 of cover plate 2, and described projection 6 is integrated setting between any two.
By adopting technique scheme, by the projection 6 arranged on cover plate 2, blocked the irradiation of the ultraviolet ray of the sun to sealing ring, prevent that sealing ring is aging, extended the useful life of sealing ring, reduced the hidden danger of transformer seal leak oil, reduce maintenance cost, improved the reliability of transformer; In addition, projection 6, except preventing the irradiation of ultraviolet ray to sealing ring, also prevents effectively that rainwater, dust etc. from entering into fuel tank 1 by cover plate 2 and case along the gap between 4.
Described fuel tank 1 is provided with and the inert gas inflation inlet 5 of protecting chamber 3 to be communicated with.
By adopting technique scheme, because inert gas inflation inlet 5 is communicated with protection chamber 3, after to inert gas inflation inlet 5, being filled with inert gas; indifferent gas cognition moves in protection chamber 3; can prevent that air from entering, stop the transformer oil oxidation and make moist, slow down oil deterioration speed.
Described inert gas is argon gas.
By adopting technique scheme, argon gas is the very wide rare gas of current industrial application, and its character is torpescence very, can not burn, also not combustion-supporting, can be used as protection gas and prevents the transformer oil oxidation and make moist.
The utlity model has following advantage: blocked the irradiation of the ultraviolet ray of the sun to sealing ring by the projection 6 arranged on cover plate 2, prevent that sealing ring is aging, extended the useful life of sealing ring, reduced the hidden danger of transformer seal leak oil, reduce maintenance cost, improved the reliability of transformer; And inert gas inflation inlet 5 and the protection setting that is communicated with of chamber 3 make to protect in chamber 3 to be full of nitrogen and to prevent that effectively air from entering, prevention transformer oil oxidation and making moist, finally slowed down oil deterioration speed.
The above is only preferred implementation of the present utility model, and protection range of the present utility model also not only is confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. oil-filled transformer; comprise fuel tank and cover plate; in described fuel tank, be provided with the protection chamber; described fuel tank is provided with the case edge of one winding at the fuel tank open end; described case edge is fixedly connected with by securing member with cover plate; between case edge and cover plate, be provided with sealing ring, it is characterized in that: the relative fuel tank direction of described cover plate surrounding is extended with and the integrated projection of cover plate, and described projection is integrated setting between any two.
2. oil-filled transformer according to claim 1, it is characterized in that: described fuel tank is provided with and the inert gas inflation inlet of protecting chamber to be communicated with.
3. oil-filled transformer according to claim 2, it is characterized in that: described inert gas is argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203576466U CN203311982U (en) | 2013-06-19 | 2013-06-19 | Oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203576466U CN203311982U (en) | 2013-06-19 | 2013-06-19 | Oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203311982U true CN203311982U (en) | 2013-11-27 |
Family
ID=49618173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203576466U Expired - Fee Related CN203311982U (en) | 2013-06-19 | 2013-06-19 | Oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203311982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740003A (en) * | 2021-07-23 | 2021-12-03 | 中国南方电网有限责任公司超高压输电公司大理局 | Method and system for testing sealing element for transformer under plateau weather |
-
2013
- 2013-06-19 CN CN2013203576466U patent/CN203311982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740003A (en) * | 2021-07-23 | 2021-12-03 | 中国南方电网有限责任公司超高压输电公司大理局 | Method and system for testing sealing element for transformer under plateau weather |
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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: 20131127 Termination date: 20150619 |
|
| EXPY | Termination of patent right or utility model |