CN203722168U - DC wall bushing structure - Google Patents
DC wall bushing structure Download PDFInfo
- Publication number
- CN203722168U CN203722168U CN201420083730.8U CN201420083730U CN203722168U CN 203722168 U CN203722168 U CN 203722168U CN 201420083730 U CN201420083730 U CN 201420083730U CN 203722168 U CN203722168 U CN 203722168U
- Authority
- CN
- China
- Prior art keywords
- insulation
- core body
- wall bushing
- bushing structure
- insulating
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 40
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000009422 external insulation Methods 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract 2
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model relates to a DC wall bushing structure which includes an insulating core body, a middle flange, insulating jackets and a conductor. The insulating core body is arranged at the outer side of the middle section of the conductor. The two sections of insulating jackets wrap the insulating core body so that outer insulators at two sides: indoor and outdoor sides are formed. The middle flange is connected between the outer insulators at the indoor and outdoor sides. An insulating material of the DC wall bushing structure is free from effects of impurities in oil and gas pressure and the insulating performance of the bushing is more stable and reliable; and the overall mechanical performance of the bushing is higher and the bending strength is higher so that the DC wall bushing structure is better adaptive to demands of a product operation condition.
Description
Technical field
The utility model relates to a kind of sleeve structure, specifically a kind of direct-current wall bushing structure.
Background technology
In DC power transmission line, the mutual conversion of electric current between AC and DC is to realize by the valve Room of current conversion station, and the valve side sleeve pipe that direct current will become by direct-current wall bushing or the change of current could be realized the turnover valve Room.
Along with the high speed development of China's power grid construction, superhigh pressure, extra high voltage direct current transmission line are also in develop rapidly, and large quantities of direct current projects are moved successively and go into operation, and this has just strengthened the demand to direct-current wall bushing.On the other hand, at present China's superhigh pressure, the basic dependence on import of wall bushing for extra-high voltage direct-current transmission line, and this type of sleeve structure kind that offshore company produces differs, and conventionally production cycle, haulage time longer, price is comparatively expensive.Meanwhile, the scarcity of the production technology of this type of sleeve pipe of China, has restricted the development of the domestic wall bushing of China, has affected the production domesticization of China's direct current network and Grand Equipments.
Utility model content
For the deficiency that lacks the products such as superhigh pressure, extra-high voltage direct-current sleeve pipe in prior art, the technical problems to be solved in the utility model is to provide the mechanical system of a kind of integral body can be higher, bending strength is higher, more adapt to the direct-current wall bushing structure of product ruuning situation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of direct-current wall bushing structure of the utility model, comprises insulation core body, spacer flanger, insulating coating and conductor, and wherein insulation core body is located at outside, conductor stage casing, the main insulation of forming sleeves; Two sections of coated external insulations that form both sides, indoor and outdoor in insulation core body outward of insulating coating, spacer flanger is connected between the external insulation of both sides, indoor and outdoor.
Between main insulation and insulating coating, be filled with SF6 gas.
Described insulation core body adopts epoxy resin impregnated paper type insulation core body.
Described insulating coating adopts silicon rubber composite insulation overcoat.
The utlity model has following beneficial effect and advantage:
1. the utility model adopts epoxy resin impregnated paper type insulation system, because insulating body is solid material, so the oily formula insulation system traditional with employing and the sleeve pipe of gas-insulated structure are compared, insulating material can not be subject to the impact of well cuts and gas pressure, the insulation property of sleeve pipe are more stable, reliable, the integral body machinery system of sleeve pipe can be higher, and bending strength is higher, more adapts to the requirement of product ruuning situation.
2. the utility model external insulation adopts silicon rubber composite insulation overcoat, have lightweight, antifouling property good, is more suitable for the instructions for use to wall bushing.
3. between the utility model main insulation and external insulation, fill with SF6 gas, play the effect of supplementary insulation, can significantly dwindle the length of main insulation simultaneously, for the manufacturing of sleeve pipe offers convenience.
4. the utility model has been filled up domestic blank, and version is unified, has greatly shortened production cycle and haulage time, can meet the demand of different user, is convenient to the producing in serial form of relevant device.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As shown in Figure 1, take ± 500kV of the present embodiment epoxy resin impregnated paper isolated dc wall bushing is example.The utility model comprises insulation core body 3, spacer flanger 4, insulating coating 5 and conductor 1, and wherein insulation core body 3 adopts epoxy resin impregnated paper type insulation core body, is located at outside, conductor stage casing, the main insulation of forming sleeves; Two sections of insulating coatings 5 are coated outside insulation core body 3, form the external insulation of both sides, indoor and outdoor, and in the present embodiment, insulating coating 5 adopts silicon rubber composite insulation overcoat; Spacer flanger 4 is connected between the external insulation of both sides, indoor and outdoor; Between main insulation and insulating coating 5, be filled with SF6(sulphur hexafluoride) gas 2.
In the utility model, the SF6 gas filling between main insulation and external insulation, plays supplementary insulation effect, can reduce the length of main insulation, for the manufacturing of sleeve pipe offers convenience.
By the main insulation of epoxy resin impregnated paper type insulation core body forming sleeves, in order to even inside pipe casing electric field.Because insulating body is solid material, so the oily formula insulation system traditional with employing and the sleeve pipe of gas-insulated structure are compared, the integral body machinery system of sleeve pipe can be higher, bending strength is higher, insulating material can not be subject to the impact of well cuts and gas pressure, the insulation property of sleeve pipe are more stable, reliable, more adapt to the requirement of product ruuning situation.
External insulation adopts silicon rubber composite insulation overcoat, have lightweight, antifouling property good, is more suitable for the instructions for use to wall bushing.
The external insulation of the spacer flanger 4 inside and outside both sides of junction chamber, fixing main insulation core body, and as the fixed part between wall bushing and body of wall, play fixing whole sleeve pipe.
Conductor is positioned in the middle of main insulation, plays current-carrying effect.
Claims (4)
1. a direct-current wall bushing structure, is characterized in that: comprise insulation core body, spacer flanger, insulating coating and conductor, wherein insulation core body is located at outside, conductor stage casing, the main insulation of forming sleeves; Two sections of coated external insulations that form both sides, indoor and outdoor in insulation core body outward of insulating coating, spacer flanger is connected between the external insulation of both sides, indoor and outdoor.
2. by direct-current wall bushing structure claimed in claim 1, it is characterized in that: between main insulation and insulating coating, be filled with SF6 gas.
3. by direct-current wall bushing structure claimed in claim 1, it is characterized in that: described insulation core body adopts epoxy resin impregnated paper type insulation core body.
4. by direct-current wall bushing structure claimed in claim 1, it is characterized in that: described insulating coating adopts silicon rubber composite insulation overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083730.8U CN203722168U (en) | 2014-02-25 | 2014-02-25 | DC wall bushing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083730.8U CN203722168U (en) | 2014-02-25 | 2014-02-25 | DC wall bushing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722168U true CN203722168U (en) | 2014-07-16 |
Family
ID=51161294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083730.8U Expired - Lifetime CN203722168U (en) | 2014-02-25 | 2014-02-25 | DC wall bushing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771410A (en) * | 2017-02-27 | 2017-05-31 | 国网上海市电力公司 | One kind passes through formula insulator pin pipe |
-
2014
- 2014-02-25 CN CN201420083730.8U patent/CN203722168U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771410A (en) * | 2017-02-27 | 2017-05-31 | 国网上海市电力公司 | One kind passes through formula insulator pin pipe |
| CN106771410B (en) * | 2017-02-27 | 2019-09-24 | 国网上海市电力公司 | One kind passing through formula insulator pin pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160527 Address after: 110144 Shenyang economic and Technological Development Zone, Liaoning Road, No. 32 Patentee after: SHENYANG HEXIN CASING CO.,LTD. Address before: 110144 Shenyang economic and Technological Development Zone, Liaoning, Shenyang Road, No. 32 Patentee before: Tbea Shenyang Transformer Group Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170228 Address after: 110144 Shenyang economic and Technological Development Zone, Liaoning, Shenyang Road, No. 32 Patentee after: SHENYANG HEXIN CASING CO.,LTD. Patentee after: Tbea Shenyang Transformer Group Co.,Ltd. Address before: 110144 Shenyang economic and Technological Development Zone, Liaoning Road, No. 32 Patentee before: SHENYANG HEXIN CASING CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |