CN202392296U - Sealing structure between sleeve and box cover of oil immersed transformer - Google Patents
Sealing structure between sleeve and box cover of oil immersed transformer Download PDFInfo
- Publication number
- CN202392296U CN202392296U CN2011205487542U CN201120548754U CN202392296U CN 202392296 U CN202392296 U CN 202392296U CN 2011205487542 U CN2011205487542 U CN 2011205487542U CN 201120548754 U CN201120548754 U CN 201120548754U CN 202392296 U CN202392296 U CN 202392296U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- flange
- sleeve
- box cover
- case lid
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 239000005060 rubber Substances 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000007799 cork Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 240000007182 Ochroma pyramidale Species 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a sealing structure between a sleeve and a box cover of an oil immersed transformer, which comprises the sleeve, the box cover and a sealing ring, wherein the box cover is provided with a sleeve hole; a flange is welded on the sleeve hole of the box cover; the sealing ring is arranged between the flange and an umbrella surface of the sleeve; the sealing ring has the outer end taking on an inclined rectangle; the sealing ring is contained in a step of the flange; and the sealing ring is made of fiber cork wood rubber. According to the sealing structure between the sleeve and the box cover, the defect of sealing leaked oil can be greatly reduced, the service life and the product quality of the sealing ring can be improved, and the sealing structure between can be popularized in the oil immersed transformer.
Description
Technical field
The utility model relates to transformer technology, and especially a kind of transformer case is along the structure of sealing.
Background technique
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 weld joint, sealing surface and sealing material etc. are located.The seal ring of the sleeve pipe of existing oil-filled electric transformer and case lid sealing configuration adopts O shape rubber ring mostly, and its main material is a nitrile butadiene rubber, the deadly defect that the acrylonitrile butadiene packing material oil resistant is not ageing-resistant.Therefore invent a kind of sleeve pipe and case lid sealing configuration of oil-filled electric transformer, be very important the working life of improving seal ring.
The model utility content
The utility model main purpose is to provide a kind of sleeve pipe and case lid sealing configuration of oil-filled electric transformer, and it is simple in structure, and reliable performance in the working life that can improve Stamping Steel Ribbon, reduces the oily defective of seal leak.
The technological scheme that technical problem adopted that the utility model solves is: a kind of sleeve pipe of oil-filled electric transformer and case lid sealing configuration; Comprise sleeve pipe, case lid and seal ring; Case lid is provided with collar aperture; It is characterized in that being welded with flange on the collar aperture of case lid, seal ring is located between the umbrella cover of flange and sleeve pipe, and seal ring is an outer end inclined rectangular seal ring.O shape rubber ring originally changes the outer end inclined rectangular seal ring of the utility model into, and Stamping Steel Ribbon receives vertical pressure during compression, and sealing surface does not receive ultraviolet direct irradiation, and like this, the sealing surface of seal ring is not easy to wear out, and has reduced the seal leak oil condition.
In the practical implementation, the inner ring of flange is provided with step, and seal ring is contained in the step of flange.Seal ring is contained in the step of flange, the direct projection of sunlight has been blocked in the outer ring of flange, has reduced the deterioration phenomenon that seal ring receives ultraviolet direct irradiation.
In the practical implementation, seal ring is a fiber cork rubber sealing circle.The fiber cork-rubber is greatly improved than common cork-rubber performance and improves in several respects such as tensile strength, elongation at break, compression set, anti-ozone aging, operating temperatures, and its performance has the dual nature of cork-rubber and nitrile butadiene rubber.
The beneficial effect of the utility model is: the utility model sleeve pipe and case lid sealing configuration, reduced the oily defective of seal leak greatly, and improved seal ring working life and quality of product, can promote the use of at oil-filled electric 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 schematic representation;
Fig. 2 is the utility model embodiment Stamping Steel Ribbon schematic representation.
Among the figure: 1, sleeve pipe 2, seal ring 3, flange 4, case lid 21, conical surface 31, step 41, collar aperture.
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 sleeve pipe of oil-filled electric transformer and case lid sealing configuration comprise sleeve pipe 1, case lid 4 and seal ring 2; Case lid 4 is provided with collar aperture 41, is welded with flange 3 on the collar aperture 41 of case lid 4, and the inner ring of flange 3 is provided with step 31; Seal ring 2 is a fiber cork rubber sealing circle, and seal ring 2 is contained in the step 31 of flange 3, and seal ring 2 is an outer end inclined rectangular seal ring; Seal ring 2 is formed slopely conical surface 21 for the outer end, and seal ring 2 is located between the umbrella cover of flange 3 and sleeve pipe 1, and O shape rubber ring originally changes the outer end inclined rectangular seal ring of the utility model into; Stamping Steel Ribbon receives vertical pressure during compression, and sealing surface does not receive ultraviolet direct irradiation, like this; The sealing surface of seal ring is not easy to wear out, and has reduced the seal leak oil condition.
Claims (3)
1. the sleeve pipe of an oil-filled electric transformer and case lid sealing configuration; Comprise sleeve pipe, case lid and seal ring, case lid is provided with collar aperture, it is characterized in that being welded with flange on the collar aperture of case lid; Seal ring is located between the umbrella cover of flange and sleeve pipe, and seal ring is an outer end inclined rectangular seal ring.
2. the sleeve pipe of a kind of oil-filled electric transformer according to claim 1 and case lid sealing configuration is characterized in that the inner ring of flange is provided with step, and seal ring is contained in the step of flange.
3. the sleeve pipe of a kind of oil-filled electric transformer according to claim 1 and 2 and case lid sealing configuration is characterized in that seal ring is a fiber cork rubber sealing circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205487542U CN202392296U (en) | 2011-12-23 | 2011-12-23 | Sealing structure between sleeve and box cover of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205487542U CN202392296U (en) | 2011-12-23 | 2011-12-23 | Sealing structure between sleeve and box cover of oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392296U true CN202392296U (en) | 2012-08-22 |
Family
ID=46667223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205487542U Expired - Fee Related CN202392296U (en) | 2011-12-23 | 2011-12-23 | Sealing structure between sleeve and box cover of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392296U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112566A (en) * | 2014-07-31 | 2014-10-22 | 南通晓星变压器有限公司 | Sleeve mounting flange for transformer |
| CN110030436A (en) * | 2019-03-21 | 2019-07-19 | 中国科学院微电子研究所 | A kind of threading sealing device |
| CN113871142A (en) * | 2021-09-14 | 2021-12-31 | 芜湖市卓亚电气有限公司 | Oil-immersed transformer bushing sealing structure |
-
2011
- 2011-12-23 CN CN2011205487542U patent/CN202392296U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112566A (en) * | 2014-07-31 | 2014-10-22 | 南通晓星变压器有限公司 | Sleeve mounting flange for transformer |
| CN110030436A (en) * | 2019-03-21 | 2019-07-19 | 中国科学院微电子研究所 | A kind of threading sealing device |
| CN113871142A (en) * | 2021-09-14 | 2021-12-31 | 芜湖市卓亚电气有限公司 | Oil-immersed transformer bushing sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINGZHOU JIANGLING SHENDA ELECTRIC CO., LTD. Free format text: FORMER OWNER: LIU LIZHONG Effective date: 20130607 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 324100 QUZHOU, ZHEJIANG PROVINCE TO: 434100 JINGZHOU, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130607 Address after: 434100 Hubei province Jiangling County haoxue town along the River Road No. 191 Patentee after: JINGZHOU JIANGLING SHENDA ELECTRIC CO., LTD. Address before: 324100, three, Jiangdong District 121, Jiangshan City, Zhejiang, Quzhou Patentee before: Liu Lizhong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |