CN202134326U - Box edge sealing structure for oil immersed transformer - Google Patents
Box edge sealing structure for oil immersed transformer Download PDFInfo
- Publication number
- CN202134326U CN202134326U CN201120242167U CN201120242167U CN202134326U CN 202134326 U CN202134326 U CN 202134326U CN 201120242167 U CN201120242167 U CN 201120242167U CN 201120242167 U CN201120242167 U CN 201120242167U CN 202134326 U CN202134326 U CN 202134326U
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- CN
- China
- Prior art keywords
- sealing strip
- case
- oil
- along
- sealing
- 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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- Housings And Mounting Of Transformers (AREA)
- Gasket Seals (AREA)
Abstract
A box edge sealing structure for an oil immersed transformer comprises a box edge of an oil box, a box cover and a sealing strip, wherein the sealing strip is arranged between the box edge and the box cover; the end part of the sealing strip is inclined and provided with a penetration hole; a bolt penetrating a hole on the box cover, the penetration hole and a hole on the box edge is fixed through a nut; and the sealing strip is a fiber cork rubber sealing strip. The box edge sealing structure for the transformer, which is provided by the utility model, greatly reduces the defects in leakage oil sealing, prolongs the service life and improves the product quality of the sealing strip, and can be popularized in oil immersed transformers.
Description
Technical field
The utility model relates to transformer technology, and especially a kind of transformer tank is along the structure of sealing.
Background technology
Oil-immersed power transformer seepage oil is the long-standing quality problems of transformer industry.Technology tackling key problem through nearly ten years has obtained effect preferably.But compare with the like product of external industrially developed country, seepage oil also fundamentally is not resolved, particularly middle-size and small-size manufacturer, and the problem that exists in this respect is more general.Transformer seepage oil mostly occurs in the commissure, sealing surface and encapsulant etc. are located.The sealing ring of existing distribution transformer adopts O shape rubber ring mostly, and its main material is an acrylonitrile-butadiene rubber, the deadly defect that the acrylonitrile butadiene packing material oil resistant is not ageing-resistant.Therefore the case of inventing a kind of oil-immersed type transformer is along hermetically-sealed construction, and be very important the useful life of improving sealing strip.
The utility model content
The case that the utility model main purpose is a kind of oil-immersed type transformer is provided is along hermetically-sealed construction, and it is simple in structure, and dependable performance in the useful life that can improve sealing strip, reduces the oily defective of seal leak.
The technical scheme that technical problem adopted that the utility model solves is: a kind of case of oil-immersed type transformer is along hermetically-sealed construction; The case edge, case lid and the sealing strip that comprise fuel tank; Sealing strip is located between case edge and the case lid; It is characterized in that sealing strip is the strip sealing strip of sloped-end and end tape punching, being provided with bolt, to pass case lid hole, perforation and case fastening with nut along the hole.The inclined-plane that sloped-end forms is provided with perforation; Case is changed into the sloped-end sealing strip in the slope of the utility model by original O shape rubber ring along seal configuration; Sealing strip receives pressure at right angle during compression, and sealing surface does not receive ultraviolet direct irradiation, like this; The sealing surface of sealing strip is not easy to wear out, and has reduced the seal leak oil condition.
In the practical implementation, sealing strip and case are respectively equipped with 3～5mm gap along inboard and the outside, so that assembling.
In the practical implementation, sealing strip is a fiber cork rubber sealing bar.The fiber cork-rubber is greatly improved than common cork-rubber performance and improves in several respects such as hot strength, elongation at break, compression set, anti-ozone aging, working temperatures, and its performance has the dual nature of cork-rubber and acrylonitrile-butadiene rubber.
The beneficial effect of the utility model is: the case of the utility model transformer has reduced the defective of seal leak oil greatly along hermetically-sealed construction, has improved sealing strip useful life and product quality, can promote the use of at oil-immersed type transformer.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the utility model embodiment sketch map;
Fig. 2 is the utility model embodiment sealing strip sketch map.
Among the figure: 1, sealing strip 2, case lid 3, case along 4, bolt 5, nut 11, sealing surface 12, inclined-plane 13, perforation 31, case along inboard 32, case along the outside.
Embodiment
Extremely shown in Figure 2 according to Fig. 1 below, embodiment states to the utility model
In Fig. 1 and Fig. 2, a kind of case of oil-immersed type transformer comprises case edge 3, case lid 2 and the sealing strip 1 of fuel tank along hermetically-sealed construction; Sealing strip 1 is a fiber cork rubber sealing bar; Sealing strip 1 is located between case edge 3 and the case lid 2, and sealing strip 1 is the strip sealing strip of sloped-end and end tape punching 13, and the inclined-plane 12 that sloped-end forms is provided with perforation 13; Sealing strip 1 and case 31 are respectively equipped with 3～5mm gap with case along the outside along inboard 32; So that the assembling, be provided with spiral shell, 4 pass case lid 2 holes, the perforation 13 and case along 3 holes fastening with nut 5.The sloped-end that changes case into the utility model along seal configuration by original O shape rubber ring becomes the sealing strip on inclined-plane 12; Sealing strip 1 receives pressure at right angle during compression; Sealing surface 11 does not receive ultraviolet direct irradiation; Like this, the sealing surface 11 of sealing strip is not easy to wear out, and has reduced the seal leak oil condition.
Claims (3)
1. the case of an oil-immersed type transformer is along hermetically-sealed construction; The case edge, case lid and the sealing strip that comprise fuel tank; Sealing strip is located between case edge and the case lid, it is characterized in that sealing strip is the strip sealing strip of sloped-end and end tape punching, and being provided with bolt, to pass case lid hole, perforation and case fastening with nut along the hole.
2. the case of a kind of oil-immersed type transformer according to claim 1 is characterized in that along hermetically-sealed construction above-mentioned sealing strip and case are respectively equipped with 3～5mm gap along inboard and the outside.
3. the case of a kind of oil-immersed type transformer according to claim 1 and 2 is characterized in that along hermetically-sealed construction above-mentioned sealing strip is a fiber cork rubber sealing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242167U CN202134326U (en) | 2011-07-11 | 2011-07-11 | Box edge sealing structure for oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242167U CN202134326U (en) | 2011-07-11 | 2011-07-11 | Box edge sealing structure for oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134326U true CN202134326U (en) | 2012-02-01 |
Family
ID=45523088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120242167U Expired - Fee Related CN202134326U (en) | 2011-07-11 | 2011-07-11 | Box edge sealing structure for oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134326U (en) |
-
2011
- 2011-07-11 CN CN201120242167U patent/CN202134326U/en not_active Expired - Fee Related
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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: 20120201 Termination date: 20170711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |