CN202392106U - Casing sealing structure for oil immersed transformer - Google Patents
Casing sealing structure for oil immersed transformer Download PDFInfo
- Publication number
- CN202392106U CN202392106U CN2011205440048U CN201120544004U CN202392106U CN 202392106 U CN202392106 U CN 202392106U CN 2011205440048 U CN2011205440048 U CN 2011205440048U CN 201120544004 U CN201120544004 U CN 201120544004U CN 202392106 U CN202392106 U CN 202392106U
- Authority
- CN
- China
- Prior art keywords
- boss
- sealing
- seal ring
- porcelain
- gland
- 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
Images
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a casing sealing structure for an oil immersed transformer. The casing sealing structure comprises a porcelain gland, a porcelain sleeve and a sealing ring, wherein the sealing ring is arranged between the porcelain gland and the porcelain sleeve and is a D-shaped sealing ring of which the outer edge is provided with a boss; and the upper and lower surfaces of the boss are respectively positioned on the outer edge surfaces of the porcelain gland and the porcelain sleeve. The outer edge of the sealing ring is provided with the boss so that the force is uniformly distributed when the sealing ring is pressed, and the shape structure of the boss accords with that of the sealing surface; and meanwhile, the boss has a limiting function, so that a sealing piece is prevented from being easily cracked due to overpressure and too high stress, and a sealing effect is good.
Description
Technical field
The utility model relates to transformer technology, especially a kind of structure of bushing shell for transformer 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 bobbin seal structure of existing oil-filled electric transformer generally includes porcelain gland, insulator and D shape seal ring; D shape seal ring is located at the insulator upper end; Electric-conducting stem is enclosed within gland, insulator and the D shape seal ring, covers the porcelain gland then with the fastening D of the compressing shape of fastening piece seal ring, forms sealing.When concrete use, when tending to appear at the fastening D of compressing shape seal ring, if fastening inhomogeneous, D shape seal ring and electric-conducting stem sealing leakage of oil can appear; This in addition structure when Sealing overvoltage and stressed excessive, cracking phenomena occurs easily.
The model utility content
The utility model main purpose is to provide a kind of bobbin seal structure of oil-filled electric transformer, and it is simple in structure, reliable performance, and during the Sealing pressurized, power is evenly distributed, and reduces the defective of seal leak oil.
The technological scheme that technical problem adopted that the utility model solves is: a kind of bobbin seal structure of oil-filled electric transformer; Comprise porcelain gland, insulator and seal ring; Seal ring is located between porcelain gland and the insulator; It is characterized in that seal ring is the D shape seal ring that outer rim is provided with boss, the top and bottom of boss lay respectively on the outer face of porcelain gland and insulator.The outer rim of seal ring is provided with boss structure, and the power when making its pressurized is evenly distributed, and meets the sealing surface shape and structure, is with boss structure also to play position-limiting action simultaneously, avoids Sealing overvoltage and stressed excessive easy to crack, and its sealing effect is very good.
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 outer rim of the utility model seal ring is provided with boss structure; Power when making its pressurized is evenly distributed, and meets the sealing surface shape and structure, is with boss structure also to play position-limiting action simultaneously; Avoid Sealing overvoltage and stressed excessive easy to crack, its sealing effect is very good.
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, porcelain gland 2, insulator 3, Stamping Steel Ribbon 31, boss.
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 bobbin seal structure of oil-filled electric transformer; Comprise porcelain gland 1, insulator 2 and seal ring 3, seal ring 3 is a fiber cork rubber sealing circle, and seal ring 3 is located between porcelain gland 1 and the insulator 2; Seal ring 3 is provided with the D shape seal ring of boss 31 for outer rim, and the top and bottom of boss 31 lay respectively on the outer face of porcelain gland 1 and insulator 2.The outer rim of seal ring 3 is provided with boss 31 structures, and the power when making its pressurized is evenly distributed, and meets the sealing surface shape and structure, is with boss 31 structures also to play position-limiting action simultaneously, avoids Sealing overvoltage and stressed excessive easy to crack, and its sealing effect is very good.
Claims (2)
1. the bobbin seal structure of an oil-filled electric transformer; Comprise porcelain gland, insulator and seal ring; Seal ring is located between porcelain gland and the insulator, it is characterized in that seal ring is the D shape seal ring that outer rim is provided with boss, and the top and bottom of boss lay respectively on the outer face of porcelain gland and insulator.
2. the bobbin seal structure of a kind of oil-filled electric transformer according to claim 1 is characterized in that seal ring is a fiber cork rubber sealing circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205440048U CN202392106U (en) | 2011-12-22 | 2011-12-22 | Casing sealing structure for oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205440048U CN202392106U (en) | 2011-12-22 | 2011-12-22 | Casing sealing structure for oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392106U true CN202392106U (en) | 2012-08-22 |
Family
ID=46667033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205440048U Expired - Fee Related CN202392106U (en) | 2011-12-22 | 2011-12-22 | Casing sealing structure for oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825787A (en) * | 2018-06-28 | 2018-11-16 | 刘磊 | A kind of OD type sealing ring |
-
2011
- 2011-12-22 CN CN2011205440048U patent/CN202392106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825787A (en) * | 2018-06-28 | 2018-11-16 | 刘磊 | A kind of OD type sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201113373Y (en) | 110kV-220kV cross linkage cable filling open air terminal | |
| CN201886843U (en) | Inner umbrella skirt type hollow core composite pillar insulator | |
| CN202392106U (en) | Casing sealing structure for oil immersed transformer | |
| CN202392296U (en) | Sealing structure between sleeve and box cover of oil immersed transformer | |
| CN202001606U (en) | Manhole sealing device of high-voltage equipment | |
| KR200460375Y1 (en) | Sealing structure for primary bushing of pole transformer | |
| CN204370884U (en) | A kind of double loop 10kV line insulation support cross-arm | |
| CN203871156U (en) | Sealing device of transformer bushing | |
| CN101877258B (en) | Plate-shaped suspension type bi-insulation composite insulator | |
| CN207909597U (en) | Porcelain insulator with shock resistance | |
| CN202544474U (en) | Cross arm used on top of telegraph pole | |
| CN203491069U (en) | Insulating end ring for resin pouring-type transformer high-voltage coil | |
| CN202971897U (en) | Self-embraced type leak-proof sealing cushion | |
| CN206532650U (en) | Full compound type insulating | |
| CN204881165U (en) | Channel structure | |
| CN201673762U (en) | Insulating and sealing part of secondary side busbar of transformer of LF refining furnace | |
| CN104091737A (en) | High-voltage fuse sealing base for underground transformers | |
| CN202134326U (en) | Box edge sealing structure for oil immersed transformer | |
| CN201975237U (en) | Oil-tight dry-type sleeve for transformer | |
| CN209569403U (en) | A kind of novel transformer pressure relief valve | |
| CN213519554U (en) | Novel transformer bushing | |
| CN204345022U (en) | A kind of fuel tap plastic closure ruggedized construction | |
| CN202871528U (en) | Cushion block for epoxy resin pouring dry type transformer | |
| CN203584875U (en) | Sealing device of submersible pump | |
| CN201773651U (en) | Porcelain composite insulator |
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: 20130608 |
|
| 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: 20130608 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: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |