CN216794589U - 110kV oil-filled insulating sleeve outdoor terminal - Google Patents
110kV oil-filled insulating sleeve outdoor terminal Download PDFInfo
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- CN216794589U CN216794589U CN202123403219.0U CN202123403219U CN216794589U CN 216794589 U CN216794589 U CN 216794589U CN 202123403219 U CN202123403219 U CN 202123403219U CN 216794589 U CN216794589 U CN 216794589U
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- sleeve
- annular
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- cable
- pipe
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 16
- 238000004880 explosion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an outdoor terminal of a 110kV oil-filled insulating sleeve, which comprises an installation bottom plate, wherein the upper end of the installation bottom plate is fixedly connected with the sleeve, a cable is coaxially arranged in the sleeve, the upper end of the cable penetrates out of the sleeve to be connected with a wire outlet clamp, the lower end of the cable penetrates out of the installation bottom plate to be connected with a tail pipe, the cable in the sleeve is tightly matched with the sleeve through a multiple sealing mechanism to form a sealing cavity, insulating oil is filled in the sealing cavity, a stress cone is arranged on the cable in the sleeve, the multiple sealing mechanism comprises a positioning pipe, an annular groove is formed in the upper end surface of the positioning pipe, a limiting sleeve of the annular groove extending upwards is fixedly arranged in the annular groove, and an annular rubber sleeve is clamped between the limiting sleeve and the stress cone in an interference manner.
Description
Technical Field
The utility model relates to an outdoor terminal of a 110kV oil-filled insulating sleeve.
Background
With the development of electric power construction in China, the electric power demand is continuously rising, especially in the construction of high-voltage and ultrahigh-voltage power grids at present, the requirements of crosslinked polyethylene insulated power cables with the voltage class of 66kV and above are increasing day by day, and the rapid development of cable accessories is promoted. Cable outdoor terminations are the primary cable accessories by which underground cables are securely connected to high voltage transmission lines on high voltage transmission towers. The current cable terminal products comprise a full-dry type silicon rubber outdoor terminal and an oil-filled terminal, and the oil-filled terminal is widely used. However, the existing oil-filled terminals all have the problem of leakage caused by poor sealing performance, and if the insulating oil leaks for a long time, the terminal breakdown accident can happen.
The sealing method for preventing the oil leakage of the existing oil-filled outdoor terminal mainly adopts a wrapping waterproof belt and a common O-shaped sealing ring, the sealing performance cannot be ensured, and the risk of oil leakage is easy to occur at the installation position of a fixing plate; when the electric power system is in fault or the phase-to-phase or phase-to-ground short circuit is caused by extreme weather, so that explosion occurs, if no protective measures are taken, great potential safety hazards are brought to the normal operation and the surrounding environment of the electric power system.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide the 110kV oil-filled insulating sleeve outdoor terminal which is reasonable in structure, safe and stable.
In order to solve the technical problem, the technical scheme of the utility model is as follows: 110kV oil charge insulation support outdoor termination, including mounting plate, the mounting plate upper end links firmly the sleeve pipe, the coaxial cable that is equipped with in the sleeve pipe, this cable upper end is worn out the sleeve pipe and is connected with the terminal clamp, and the lower extreme is worn out the mounting plate and is connected with the tail pipe, and the cable that is located the sleeve pipe is closely cooperated with the sleeve pipe through multiple sealing mechanism and is formed sealed chamber, and this sealed intracavity is filled with insulating oil, is located to be equipped with the stress cone on the cable of sleeve pipe, and the cable of stress cone lower part all overlaps and is equipped with insulating cover, multiple sealing mechanism includes the registration arm, and the annular has been seted up to the registration arm up, the annular inslot sets firmly the stop collar that extends the annular up, the interference card is equipped with annular rubber sleeve between stop collar and the insulating cover.
Further, annular clamp plate is pressed to annular rubber sleeve upper end, and this annular clamp plate the inner links firmly on the insulating bush to at the horizontal extension of sealed intracavity, the stop collar is big-end-up's loudspeaker form and has outer eaves in the outside horizontal extension of stop collar top, should correspond on eaves and the annular clamp plate and seted up a plurality of through-holes, and all wear to establish through the bolt is vertical to connect the locking.
Further, the annular rubber sleeve outer wall is arc-shaped with the cooperation of stop collar inner wall and extends, coaxial and the parallel rubber slab that is equipped with in annular clamp plate top, this rubber slab outer end are equipped with the flange, the inside pipe wall offers the ring groove who is used for cooperating the flange joint.
Furthermore, the locating pipe sleeve is arranged outside the insulating sleeve, a supporting flange extends horizontally from the top end of the locating pipe sleeve, the annular groove is formed in the upper surface of the supporting flange, and the lower end of the supporting flange is supported through the top connection of the installation bottom plate and is connected through a bolt in a locking mode.
Furthermore, an annular sealing groove is formed in the upper surface of the supporting flange, a sealing ring is arranged in the sealing groove in a cushioning mode and used for pressing the bottom end of the sleeve to form a seal, the outer side of the bottom end of the sleeve is locked with the mounting bottom plate through bolts, and a post insulator is arranged at the bottom end of the mounting bottom plate.
Furthermore, an annular outer cover is fixedly and coaxially arranged at the bottom end of the sleeve, and an opening of the outer cover faces downwards to cover the mounting bottom plate.
Further, the sleeve is a ceramic sleeve or a composite sleeve, and the whole sleeve is in a conical shape with a small upper part and a large lower part.
Compared with the prior art, the utility model has the following beneficial effects: the bottom end of the limiting sleeve is inserted into the annular groove and welded with the positioning pipe into a whole, the annular rubber sleeve is clamped between the limiting sleeve and the insulating sleeve in an interference manner and is pressed tightly by the annular pressing plate, the sealing performance is ensured, and the rubber plate and the flange are clamped in the annular clamping groove in a matching manner to prevent leakage at first, namely, a better sealing effect is ensured by multiple sealing design; explosion power is guided downwards when the design through the mounting base plate and the annular outer cover breaks down, so that the damage surface of the terminal is reduced to a controllable range, property loss is effectively avoided, and an electric power system is protected.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a in fig. 1.
In the figure: 1-mounting bottom plate, 2-sleeve, 3-cable, 4-wire clip, 5-tail pipe, 6-multiple sealing mechanism, 7-sealing cavity, 8-insulating oil, 9-stress cone, 10-insulating sleeve, 11-positioning pipe, 12-ring groove, 13-limiting sleeve, 14-annular rubber sleeve, 15-annular pressing plate, 16-outer brim, 17-through hole, 18-bolt, 19-rubber plate, 20-flange, 21-annular clamping groove, 22-supporting flange, 23-sealing groove, 24-sealing ring, 25-post insulator and 26-annular housing.
Detailed Description
In order to make the aforementioned and other features and advantages of the utility model more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in figures 1-2, the 110kV oil-filled insulating sleeve outdoor terminal comprises a mounting base plate 1, a sleeve 2 is fixedly connected to the upper end of the mounting base plate, a cable 3 is coaxially arranged in the sleeve, the upper end of the cable penetrates through the sleeve to be connected with the wire outlet clamp 4, the lower end of the cable penetrates through the mounting bottom plate to be connected with the tail pipe 5, the tail pipe is positioned in the insulating sleeve, the cable positioned in the sleeve is tightly matched with the sleeve through the multiple sealing mechanism 6 to form a sealing cavity 7, insulating oil 8 is filled in the sealing cavity, a stress cone 9 is arranged on the cable in the sleeve, insulating sleeves 10 are sleeved outside the cables at the lower part of the stress cone, the multiple sealing mechanism comprises a positioning pipe 11, an annular groove 12 is formed in the upper end face of the positioning pipe, a limiting sleeve 13 extending out of the annular groove upwards is fixedly arranged in the annular groove, the bottom end of the limiting sleeve is inserted into the annular groove and is welded with the positioning pipe into a whole, and an annular rubber sleeve 14 is arranged between the limiting sleeve and an insulating sleeve in an interference clamping mode.
In the embodiment of the utility model, an annular pressure plate 15 is pressed on the upper end of the annular rubber sleeve, the inner end of the annular pressure plate is fixedly connected to the insulating sleeve and horizontally extends in the sealed cavity, the limiting sleeve is in a horn shape with a large upper part and a small lower part, an outer brim 16 horizontally extends outwards from the top end of the limiting sleeve, and a plurality of through holes 17 are correspondingly formed in the outer brim and the annular pressure plate and are vertically penetrated through by bolts 18 to be connected and locked.
In the embodiment of the utility model, the outer wall of the annular rubber sleeve and the inner wall of the limiting sleeve are matched and extend in an arc shape, a rubber plate 19 is coaxially and parallelly arranged above the annular pressing plate, a flange 20 is arranged at the outer end of the rubber plate, and an annular clamping groove 21 for matching with the flange in clamping connection is formed in the inner wall of the sleeve.
In the embodiment of the utility model, the positioning pipe is sleeved outside the insulating sleeve, the lower end of the positioning pipe and the outside of the insulating sleeve can be connected and prevented from seepage through a double-layer tetrafluoroethylene self-adhesive tape, a supporting flange 22 extends horizontally from the top end of the positioning pipe sleeve, the annular groove is formed in the upper surface of the supporting flange, and the lower end of the supporting flange is abutted and supported by the mounting bottom plate and is connected in a locking manner through a bolt.
In the embodiment of the utility model, an annular sealing groove 23 is formed on the upper surface of the supporting flange, a sealing ring 24 is arranged in the sealing groove in a cushioning manner to press and seal the bottom end of the sleeve, the outer side of the bottom end of the sleeve is locked with an installation bottom plate through bolts, and a post insulator 25 is arranged at the bottom end of the installation bottom plate.
In the embodiment of the utility model, an annular outer cover 26 is fixedly and coaxially fixed at the bottom end of the sleeve, and the opening of the outer cover faces downwards to cover the mounting bottom plate.
In the embodiment of the utility model, the sleeve is a ceramic sleeve or a composite sleeve, and the whole sleeve is in a conical shape with a small upper part and a big lower part.
In the embodiment of the utility model, the bottom end of the limiting sleeve is inserted into the annular groove and welded with the positioning pipe into a whole, the annular rubber sleeve is clamped between the limiting sleeve and the insulating sleeve in an interference manner and is compressed by the annular pressing plate, the sealing property is ensured, and the rubber plate and the flange are clamped in the annular clamping groove in a matching manner to prevent leakage firstly, namely, the multiple sealing design ensures better sealing effect; explosion power is guided downwards when the design through the mounting base plate and the annular outer cover breaks down, so that the damage surface of the terminal is reduced to a controllable range, property loss is effectively avoided, and an electric power system is protected.
The present invention is not limited to the above preferred embodiments, and various other forms of 110kV oil-filled insulated bushing outdoor terminals can be derived by anyone in light of the present invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (7)
1.110kV oil-filled insulation support outdoor termination, its characterized in that: including mounting plate, the mounting plate upper end links firmly the sleeve pipe, the intraductal coaxial cable that is equipped with of sleeve, this cable upper end is worn out the sleeve pipe and is connected with the terminal clamp, and the lower extreme is worn out mounting plate and is connected with the tail pipe, and the cable that is located the sleeve pipe forms sealed chamber through multiple sealing mechanism and the inseparable cooperation of sleeve pipe, and this sealed intracavity is filled has insulating oil, is located to be equipped with the stress cone on the intraductal cable of sleeve, and the cable of stress cone lower part all overlaps and is equipped with insulating cover, multiple sealing mechanism includes the registration arm, and the annular has been seted up to the registration arm up end, the annular inslot sets firmly the stop collar that extends the annular up, the interference card is equipped with annular rubber sleeve between stop collar and the insulating cover.
2. The 110kV oil-filled insulation sleeve outdoor terminal of claim 1, wherein: the upper end of the annular rubber sleeve is pressed with an annular pressing plate, the inner end of the annular pressing plate is fixedly connected to the insulating sleeve and horizontally extends in the sealed cavity, the limiting sleeve is in a horn shape with a large upper end and a small lower end, an outer eave is horizontally extended outwards from the top end of the limiting sleeve, a plurality of through holes are correspondingly formed in the outer eave and the annular pressing plate, and the outer eave and the annular pressing plate are vertically connected and locked in a penetrating mode through bolts.
3. The 110kV oil-filled insulation sleeve outdoor terminal of claim 2, wherein: annular rubber sleeve outer wall is the arc with the cooperation of stop collar inner wall and extends, coaxial and the parallel rubber slab that is equipped with in annular clamp plate top, this rubber slab outer end are equipped with the flange, the inside pipe wall of sleeve offers the ring groove who is used for cooperating the flange joint.
4. The 110kV oil-filled insulation sleeve outdoor terminal of claim 1, wherein: the locating pipe is sleeved outside the insulating sleeve, a supporting flange extends horizontally from the top end of the locating pipe, the annular groove is formed in the upper surface of the supporting flange, and the lower end of the supporting flange is connected with a support through a mounting bottom plate in a top connection mode and is connected through a bolt in a locking mode.
5. The 110kV oil-filled insulation sleeve outdoor terminal of claim 4, wherein: an annular sealing groove is formed in the upper surface of the supporting flange, a sealing ring is arranged in the sealing groove in a cushioning mode to press the bottom end of the sleeve to be sealed, the outer side of the bottom end of the sleeve is locked with the mounting bottom plate through bolts, and a post insulator is arranged at the bottom end of the mounting bottom plate.
6. The 110kV oil-filled insulation sleeve outdoor terminal of claim 1, wherein: the bottom end of the sleeve is fixedly and coaxially and fixedly provided with an annular outer cover, and the opening of the outer cover faces downwards to cover the mounting bottom plate.
7. The 110kV oil-filled insulation sleeve outdoor terminal of claim 1, wherein: the sleeve is a ceramic sleeve or a composite sleeve, and the whole sleeve is in a conical shape with a small upper part and a big lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123403219.0U CN216794589U (en) | 2021-12-31 | 2021-12-31 | 110kV oil-filled insulating sleeve outdoor terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123403219.0U CN216794589U (en) | 2021-12-31 | 2021-12-31 | 110kV oil-filled insulating sleeve outdoor terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216794589U true CN216794589U (en) | 2022-06-21 |
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ID=82011834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123403219.0U Active CN216794589U (en) | 2021-12-31 | 2021-12-31 | 110kV oil-filled insulating sleeve outdoor terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216794589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284979A (en) * | 2021-12-31 | 2022-04-05 | 福建泉源电气设备有限公司 | A 110kV oil-filled insulating sleeve outdoor terminal |
-
2021
- 2021-12-31 CN CN202123403219.0U patent/CN216794589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284979A (en) * | 2021-12-31 | 2022-04-05 | 福建泉源电气设备有限公司 | A 110kV oil-filled insulating sleeve outdoor terminal |
| CN114284979B (en) * | 2021-12-31 | 2024-12-27 | 福建泉源电气设备有限公司 | A 110kV oil-filled insulating bushing outdoor terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: 110kV oil filled insulation sleeve outdoor terminal Effective date of registration: 20230327 Granted publication date: 20220621 Pledgee: China Postal Savings Bank Co.,Ltd. Minhou County Branch Pledgor: FUJIAN QUANYUAN ELECTRIC EQUIPMENT CO.,LTD. Registration number: Y2023350000093 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |