CN107689619A - A kind of oil-filled cable annex terminal sealing device - Google Patents
A kind of oil-filled cable annex terminal sealing device Download PDFInfo
- Publication number
- CN107689619A CN107689619A CN201710857057.7A CN201710857057A CN107689619A CN 107689619 A CN107689619 A CN 107689619A CN 201710857057 A CN201710857057 A CN 201710857057A CN 107689619 A CN107689619 A CN 107689619A
- Authority
- CN
- China
- Prior art keywords
- cable
- oil
- seal pipe
- stress cone
- sealing device
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
- H02G15/23—Cable-end sealings
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A kind of oil-filled cable annex terminal sealing device, including cable, the stress cone being sheathed on cable, seal pipe and the sealing shroud of connection seal pipe and stress cone, sealing shroud includes path section, tapering transition section, big footpath section, path section endoporus coordinates with stress cone bottom, tapering transition section endoporus coordinates with cable, big footpath section endoporus coordinates with seal pipe, vacuum cavity is provided between the outer wall and inwall of sealing shroud, vacuum cavity inwall is provided with several projections, and inner wall surface is provided with helical form rubber lug.By setting vacuum cavity and helical form rubber lug, the sealing between stress cone and seal pipe and cable is substantially increased.
Description
Technical field
The present invention relates to all kinds of oil-filled cable outdoor terminal inner sealing sets of unlimited voltage class.
Background technology
, cable and stress cone and lower metal seal pipe all be present in existing all kinds of oil-filled cable annex terminals（It is referred to as close
Tube sealing）Between sealing problem, if processing is bad, oil accident will occur, have a strong impact on the normal use of product.And
Because cable or stress cone, the dimensional accuracy of seal pipe be not high, rough surface, cause sealing effectiveness poor, terminal inner it is exhausted
The outside seepage of edge oil, has much room for improvement.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of sealing effectiveness is good, tension and anti-deformation, installation and dress
With simple oil-filled cable annex terminal sealing device.
To realize the object of the invention, there is provided following technical scheme：A kind of oil-filled cable annex terminal sealing device,
Including cable, the stress cone being sheathed on cable, seal pipe and the sealing shroud of connection seal pipe and stress cone, it is characterised in that
Sealing shroud includes path section, tapering transition section, big footpath section, and path section endoporus coordinates with stress cone bottom, tapering transition section endoporus
Coordinate with cable, big footpath section endoporus coordinates with seal pipe, and vacuum cavity, vacuum cavity are provided between the outer wall and inwall of sealing shroud
Inwall is provided with several projections, and inner wall surface is provided with helical form rubber lug.
Preferably, the height of helical form rubber lug is 5 ~ 8mm, thickness is 0.5 ~ 0.7mm.
Preferably, a diameter of 3 ~ 3.5mm of vacuum cavity.
Preferably, between stress cone bottom and seal pipe top and double-layer seal set, wrapped 6-8 layers water blocking tape.
Beneficial effect of the present invention：Because double-layer seal set is made up of silicon rubber, so with elasticity well, it can hold tightly and answer
Power is bored and seal pipe.Between stress cone bottom and seal pipe top and double-layer seal set, wrapped 6-8 layers water blocking tape, thus
Ensure that stress cone and cable well, effective sealing between seal pipe and cable, prevent the insulating oil of terminal inner to
Outer seepage, the safety coefficient of the operation of cable accessory products is effectively increased, advantageously in the safety of cable accessory system
Operation.Present invention is mainly used for：Products of different specifications in all kinds of cable accessories of the kV of voltage class 66~500.The scope of application
Extensively.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of sealing shroud.
Embodiment
Embodiment 1：A kind of oil-filled cable annex terminal sealing device, including cable 1, be sheathed on cable 1 should
Power cone 2, seal pipe 3 and the sealing shroud 4 of connection seal pipe 2 and stress cone 2, sealing shroud 4 include path section 4.1, tapering transition
Section 4.2, big footpath section 4.3, the endoporus of path section 4.1 coordinate with the bottom of stress cone 2, and the endoporus of tapering transition section 4.2 coordinates with cable 1,
The endoporus of big footpath section 4.3 coordinates with seal pipe 2, and vacuum cavity 5, vacuum cavity inwall 5 are provided between the outer wall and inwall of sealing shroud 4
Several projections 6 are provided with, inner wall surface is provided with helical form rubber lug 7.The height of helical form rubber lug 7 is 5 ~ 8mm,
Thickness is 0.5 ~ 0.7mm.The width of vacuum cavity 5 is 3 ~ 3.5mm.
Between the bottom of stress cone 2 and the top of seal pipe 3 and sealing shroud 4, wrapped 6-8 layers water blocking tape 8.
Claims (4)
1. a kind of oil-filled cable annex terminal sealing device, including cable, the stress cone being sheathed on cable, seal pipe with
And the sealing shroud of connection seal pipe and stress cone, it is characterised in that sealing shroud includes path section, tapering transition section, big footpath section, small
Footpath section endoporus coordinates with stress cone bottom, and tapering transition section endoporus coordinates with cable, and big footpath section endoporus coordinates with seal pipe, sealing
Vacuum cavity is provided between the outer wall and inwall of set, vacuum cavity inwall is provided with several projections, and inner wall surface is provided with spiral shell
Revolve shape rubber lug.
2. oil-filled cable annex terminal sealing device according to claim 1, it is characterised in that helical form rubber convex
The height of piece is 5 ~ 8mm, and thickness is 0.5 ~ 0.7mm.
3. oil-filled cable annex terminal sealing device according to claim 1, it is characterised in that vacuum cavity it is straight
Footpath is 3 ~ 3.5mm.
4. oil-filled cable annex terminal sealing device according to claim 1, it is characterised in that stress cone bottom and
Between seal pipe top and double-layer seal set, wrapped 6-8 layers water blocking tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857057.7A CN107689619A (en) | 2017-09-21 | 2017-09-21 | A kind of oil-filled cable annex terminal sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857057.7A CN107689619A (en) | 2017-09-21 | 2017-09-21 | A kind of oil-filled cable annex terminal sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107689619A true CN107689619A (en) | 2018-02-13 |
Family
ID=61156452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710857057.7A Withdrawn CN107689619A (en) | 2017-09-21 | 2017-09-21 | A kind of oil-filled cable annex terminal sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107689619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103364A (en) * | 2019-04-26 | 2019-08-09 | 科耐特输变电科技股份有限公司 | A kind of production mould of GIS stress cone |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2056191A (en) * | 1979-06-15 | 1981-03-11 | British Engines Ltd | Improvements in, or relating to, cable seals |
| JPH1169597A (en) * | 1997-08-11 | 1999-03-09 | Hitachi Cable Ltd | Cable end for power cable |
| CN201674200U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Flexible sealing device for oil charge terminal |
| CN104538924A (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | Split type oil filling outdoor terminal and sealing structure thereof |
| CN104734110A (en) * | 2015-04-09 | 2015-06-24 | 国家电网公司 | Waterproof stress cone |
| CN207234376U (en) * | 2017-09-21 | 2018-04-13 | 科耐特输变电科技股份有限公司 | A kind of oil-filled cable annex terminal sealing device |
-
2017
- 2017-09-21 CN CN201710857057.7A patent/CN107689619A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2056191A (en) * | 1979-06-15 | 1981-03-11 | British Engines Ltd | Improvements in, or relating to, cable seals |
| JPH1169597A (en) * | 1997-08-11 | 1999-03-09 | Hitachi Cable Ltd | Cable end for power cable |
| CN201674200U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Flexible sealing device for oil charge terminal |
| CN104538924A (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | Split type oil filling outdoor terminal and sealing structure thereof |
| CN104734110A (en) * | 2015-04-09 | 2015-06-24 | 国家电网公司 | Waterproof stress cone |
| CN207234376U (en) * | 2017-09-21 | 2018-04-13 | 科耐特输变电科技股份有限公司 | A kind of oil-filled cable annex terminal sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103364A (en) * | 2019-04-26 | 2019-08-09 | 科耐特输变电科技股份有限公司 | A kind of production mould of GIS stress cone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180213 |