CN202134314U - Ultrahigh pressure dry-oil-SF6 sleeve - Google Patents
Ultrahigh pressure dry-oil-SF6 sleeve Download PDFInfo
- Publication number
- CN202134314U CN202134314U CN201120186341U CN201120186341U CN202134314U CN 202134314 U CN202134314 U CN 202134314U CN 201120186341 U CN201120186341 U CN 201120186341U CN 201120186341 U CN201120186341 U CN 201120186341U CN 202134314 U CN202134314 U CN 202134314U
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- China
- Prior art keywords
- sleeve
- dry
- core body
- sleeve pipe
- oil
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- Expired - Lifetime
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Abstract
The utility model relates to an ultrahigh pressure oil-SF6 sleeve comprising a dry sleeve core body, a middle structure, a head structure and a tail structure, wherein the middle structure comprises a connecting sleeve arranged in the middle of the dry sleeve core body, as well as a first mounting flange and a second mounting flange which are respectively arranged at two ends of the connecting sleeve; a part of the dry sleeve core body, from the first mounting flange to the tail structure, is positioned in transformer oil; and a part of the dry sleeve core body, from the second mounting flange to the head structure, is positioned in an SF6 air chamber. The ultrahigh pressure dry-oil-SF6 sleeve is firm and reliable in the whole structure.
Description
Technical field
The utility model relates to a kind of bushing shell for transformer in electric power electric field, the structure of particularly a kind of superhigh pressure dry type oil-SF6 sleeve pipe.
Background technology
Be the needs that cooperate State Grid Corporation of China's extra-high voltage grid to build; Along with voltage and current class raise, the application of fully closed combined electric unit more and more widely adopts oil-SF6 sleeve pipe to be connected between transformer and the switch; Make electric equipment compact conformation floor space little, Operation and Maintenance is simple.550kV/6300A oil-SF6 dry type capacitive transformer sleeve pipe is one of crucial accessory of fully closed combined electric unit and transformer, and its safe operation plays an important role to transformer and switch.Though oil-paper oil-SF6 capacitive transformer sleeve pipe has good electric property; But because objective realities such as such sleeve pipe is in operation that oil chromatography problem, the porcelain spare that possibly occur bursts, sealing problem, oil leaking pollution and maintenance cost height make the use of oilpaper sleeve pipe receive certain restriction.The glue that adopts epoxy resin impregnated insulating paper technology to make soaks paper capacitor formula sleeve pipe; Have non-maintaining, pollution-free, volume is little, advantage such as in light weight, easy to use; Receive more and more users' welcome, make its bright spot that becomes sleeve pipe market, obtain user's favor.Along with the development of electrical network, adopt glue to soak paper oil-SF6 condenser-type terminal and can accomplish low noise, pollution-free, fire prevention, explosion-proof, small-sized modularization.Do not have the oiling Development Trend according to electric power system, dry sleeve might progressively replace oil immersion master mode sleeve pipe, therefore have good market prospects.Present domestic nothing is succeeded in developing the report that 550kV/6300A glue soaks paper oil-SF6 sleeve pipe.
Oil-SF6 sleeve pipe is a kind of bushing that oil-filled transformer and SF6 fully closed combined electric unit or SF6 bus bar canister are electrically connected.SF6 fully closed combined electric unit and oil-filled transformer separate through the flange of sleeve pipe, and sleeve pipe be one independently whole, the surperficial epoxy layer of sleeve pipe contacts and contacts with transformer oil with the SF6 medium of fully closed combined electric unit.
The utility model content
The purpose of the utility model is to provide a kind of superhigh pressure dry type oil-SF6 sleeve pipe, and this sleeve pipe can be realized the excessive connection of 550kV grade fully closed combined electric unit and transformer.
For achieving the above object; The utility model provides a kind of superhigh pressure dry type oil-SF6 sleeve pipe; It comprises dry sleeve core body, central structure; Head construction and tail structure; Said central structure comprises the branch sleeve at the middle part that is arranged on the dry sleeve core body and is separately positioned on first mounting flange and second mounting flange at branch sleeve two ends, and wherein the dry sleeve core body is in the transformer oil in the part of first mounting flange to tail structure, and the dry sleeve core body is in the SF6 air chamber in the part of second mounting flange to head construction.
Preferably, said head construction is provided with the end face binding post and is arranged on the nut in the dry sleeve core body, and said end face binding post links to each other through screw with nut, and carries out axial seal between end face binding post and the nut.
Preferably, said dry sleeve core body is provided with conduit, and said nut is connected through welded seal with conduit.
Preferably, said dry sleeve core body is provided with the current-carrying bar that runs through whole sleeve pipe, and this current-carrying bar partly is connected with the end face binding post through screw thread at head construction.
Preferably, tail structure is provided with voltage equalizing ball, and the current-carrying bar is connected with said voltage equalizing ball in the tail structure part.
Preferably, the outside of said dry sleeve core body is provided with epoxy and soaks ply of paper.
The beneficial effect of the utility model is: the central structure design of sleeve pipe is adopted and is axially clamped hermetically-sealed construction, makes overall structure firmly, reliably; The screw thread current-carrying is adopted in the head construction design of sleeve pipe, and the current-carrying reliability is high; The design of Sealing Structure of sleeve pipe can prevent effectively that SF6 gas is inner to transformer through the contact tube internal leakage; The current-carrying structural design of sleeve pipe can effectively prevent the influence of current-carrying heating to dry type capacitor core insulation property.The described superhigh pressure dry type oil of the utility model-SF6 sleeve pipe can be realized the excessive connection of 550kV grade fully closed combined electric unit and transformer.
Description of drawings
Fig. 1 is the structural representation that meets a kind of superhigh pressure dry type oil-SF6 sleeve pipe of the utility model;
Fig. 2 is the local enlarged diagram of circle part among Fig. 1;
Fig. 3 is the partial sectional view of the tail structure of superhigh pressure dry type oil-SF6 sleeve pipe shown in Figure 1.
To combine accompanying drawing that the utility model is done below further describes.
Embodiment
Please see figures.1.and.2, a kind of electric pressure that meets the utility model is superhigh pressure dry type oil-SF6 sleeve pipe of 550kv, and it comprises dry sleeve core body 1, central structure, head construction and tail structure.
Said head construction is provided with end face binding post 5 and the nut 6 in the dry sleeve core body 1 is set, and said end face binding post 5 and nut 6 link to each other through screw, and carry out axial seal between end face binding post 5 and the nut 6.
Said central structure comprises the branch sleeve 2 at the middle part that is arranged on dry sleeve core body 1 and is separately positioned on first mounting flange 8 and second mounting flange 9 at branch sleeve 2 two ends that wherein dry sleeve core body 1 is in the transformer oil in the part of first mounting flange 8 to tail structure.Dry sleeve core body 1 is in the SF6 air chamber in the part of second mounting flange 9 to head construction.
Said dry sleeve core body 1 is provided with conduit 11, and said nut 6 and conduit 11 are connected through welded seal.Dry sleeve core body 1 also is provided with the current-carrying bar 7 that runs through whole sleeve pipe, and this current-carrying bar 7 partly is connected with end face binding post 5 through screw thread at head construction.
See also Fig. 3, tail structure is provided with voltage equalizing ball 4, and this voltage equalizing ball 4 links to each other with base 12 through screw thread, and base 12 links to each other with conduit 11 through screw thread, and current-carrying bar 7 wiring faces are positioned at the inside of voltage equalizing ball 4.
The outside of said dry sleeve core body 1 is provided with epoxy and soaks ply of paper 3.
The described superhigh pressure dry type oil of the utility model-SF6 sleeve pipe can be realized the excessive connection of 550kV grade fully closed combined electric unit and transformer, has solved problems such as oilpaper type 550kV oil-SF6 condenser-type terminal oil chromatography, porcelain spare burst, sealing problem, oil leaking pollution.
Above content is the further explain that combines concrete preferred implementation that the utility model is done; The embodiment that can not assert the utility model only limits to this; Those of ordinary skill for technical field under the utility model; Under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the utility model and confirm scope of patent protection by claims of being submitted to.
Claims (6)
1. superhigh pressure dry type oil-SF6 sleeve pipe; It comprises dry sleeve core body (1), central structure; Head construction and tail structure; It is characterized in that: said central structure comprises the branch sleeve (2) at the middle part that is arranged on dry sleeve core body (1) and is separately positioned on first mounting flange (8) and second mounting flange (9) at branch sleeve (2) two ends; Wherein dry sleeve core body (1) is in the transformer oil in the part of first mounting flange (8) to tail structure, and dry sleeve core body (1) is in the SF6 air chamber in the part of second mounting flange (9) to head construction.
2. superhigh pressure dry type oil as claimed in claim 1-SF6 sleeve pipe; It is characterized in that: said head construction is provided with end face binding post (5) and is arranged on the nut (6) in the dry sleeve core body (1); Said end face binding post (5) links to each other through screw with nut (6), and carries out axial seal between end face binding post (5) and the nut (6).
3. superhigh pressure dry type oil as claimed in claim 2-SF6 sleeve pipe is characterized in that: said dry sleeve core body (1) is provided with conduit (11), and said nut (6) is connected through welded seal with conduit (11).
4. superhigh pressure dry type oil as claimed in claim 2-SF6 sleeve pipe is characterized in that: said dry sleeve core body (1) is provided with the current-carrying bar (7) that runs through whole sleeve pipe, and this current-carrying bar (7) partly is connected with end face binding post (5) through screw thread at head construction.
5. superhigh pressure dry type oil as claimed in claim 4-SF6 sleeve pipe is characterized in that: tail structure (4) is provided with voltage equalizing ball, and current-carrying bar (7) is connected with said voltage equalizing ball in the tail structure part.
6. like claim 1,2,3,4 or 5 described superhigh pressure dry type oil-SF6 sleeve pipes, it is characterized in that: the outside of said dry sleeve core body (1) is provided with epoxy and soaks ply of paper (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120186341U CN202134314U (en) | 2011-06-03 | 2011-06-03 | Ultrahigh pressure dry-oil-SF6 sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120186341U CN202134314U (en) | 2011-06-03 | 2011-06-03 | Ultrahigh pressure dry-oil-SF6 sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134314U true CN202134314U (en) | 2012-02-01 |
Family
ID=45523076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120186341U Expired - Lifetime CN202134314U (en) | 2011-06-03 | 2011-06-03 | Ultrahigh pressure dry-oil-SF6 sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800468A (en) * | 2012-08-09 | 2012-11-28 | 中国西电电气股份有限公司 | Impregnated paper capacitive oil-SF6 transformer bushing |
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
-
2011
- 2011-06-03 CN CN201120186341U patent/CN202134314U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800468A (en) * | 2012-08-09 | 2012-11-28 | 中国西电电气股份有限公司 | Impregnated paper capacitive oil-SF6 transformer bushing |
| CN102800468B (en) * | 2012-08-09 | 2015-06-03 | 中国西电电气股份有限公司 | Impregnated paper capacitive oil-SF6 transformer bushing |
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
|
| CX01 | Expiry of patent term |