CN105575495B - Improve oil-filled cable - Google Patents
Improve oil-filled cable Download PDFInfo
- Publication number
- CN105575495B CN105575495B CN201510532439.3A CN201510532439A CN105575495B CN 105575495 B CN105575495 B CN 105575495B CN 201510532439 A CN201510532439 A CN 201510532439A CN 105575495 B CN105575495 B CN 105575495B
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- CN
- China
- Prior art keywords
- oil
- cable
- filled
- oil duct
- flow regulator
- 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
- 238000007654 immersion Methods 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 11
- 230000005484 gravity Effects 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The present invention relates to one kind to improve oil-filled cable, and this improvement oil-filled cable includes oil duct, conduit, screen layer, insulating barrier and protective case from inside to outside；Insulating oil is filled with the oil duct；The conduit is closely screwed up by wire to be formed；The fuel reserve tank connected with the oil duct is also equipped with two ends of the oil-filled cable；The oil duct is made by hard oil immersion film, equidistant on the axis of the oil duct to be provided with choke valve；Each choke valve includes two flow regulator pieces perpendicular to oil duct axis, and throttle orifice is offered on each flow regulator pieces；Orifice plug is movably installed between two flow regulator pieces；The cable can expand the assembling difference in height of oil-filled cable, increase the application space of oil-filled cable, while can effectively prevent the generation of air gap in cable.
Description
Technical field
The present invention relates to a kind of cable, is a kind of oil-filled cable for being used to transmit electricity particularly.
Background technology
The profile of cable is similar to rope, and typically by several or several groups of wire strandings form, between every group of wire mutually absolutely
Edge, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation；It is be erected in the air or mounted in ground more
Under, it is water-bed, for telecommunication or power Transmission；In order to ensure the normal, stably of cable work, often in the cable filled with insulating oil,
It can effectively eliminate in insulating barrier because of load variations and caused by air gap, so as to improve the work field strength of cable；It is but traditional
Oil-filled cable supplement impregnating equipment, such as forbay, gravity box need to be installed in end, the oil duct of the structure and cable connects
It is logical, with storage and impregnating agent of the compensating cable when Volume Changes occur, and keep certain oil pressure；Therefore traditional oil-filled electricity
Operation of the cable in assembling is more complicated, while the factor that need to be considered is more, during installing and using and inconvenient；While in order to
Ensure cable in oil pressure stabilization, uniformly, cable laying when need to limit certain difference in height, the i.e. height at cable both ends not
Can have big difference, in order to prevent that the cable fluid of high opening position is insufficient, so that producing air gap damage circuit；Due to by height
The limitation of difference is spent, oil-filled cable is limited in laying by larger, and this causes larger inconvenience to normal transmission arrangement.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of improvement oil-filled cable, the cable can expand the assembling of oil-filled cable
Difference in height, increase the application space of oil-filled cable, while can effectively prevent the generation of air gap in cable.
To solve the above problems, the technical solution adopted in the present invention is：This improvement oil-filled cable includes from inside to outside
Oil duct, conduit, screen layer, insulating barrier and protective case；Insulating oil is filled with the oil duct；The conduit is by wire
Close screw up forms；The fuel reserve tank connected with the oil duct is also equipped with two ends of the oil-filled cable；The oil duct
Made by hard oil immersion film, it is equidistant on the axis of the oil duct that choke valve is installed；Each choke valve includes two
Perpendicular to the flow regulator pieces of oil duct axis, throttle orifice is offered on each flow regulator pieces；It is movable between two flow regulator pieces
Orifice plug is installed.
The beneficial effects of the invention are as follows：Oil-filled cable is laid by circuit planning chart；When cable water tiling is set, each throttling
The orifice plug in valve can be in free activity, therefore each shutoff valve of cable horizontal segment remains on, cable
The oil duct of horizontal segment keeps insertion；In vertical laying, orifice plug covers below orifice plug cable under gravity
Throttle orifice, now each choke valve of cable vertical section remain off, the pent section of oil duct of cable vertical section
If stream valve is separated into drier oil section, the insulating oil in each oily section is independently stored, therefore even if this improvement oil-filled cable in the presence of compared with
Big difference in height is also not in upper end petrol starvation, i.e., this improvement oil-filled cable can realize the laying of larger difference in height, and
Keep the oil immersion of cable everywhere in good condition.
Insulating oil in oil duct infiltrates conduit by hard oil immersion film, and whole along the capillary infiltration between wire
Individual cable；According to the principle of capillarity, insulating oil is locked in each capillary simultaneously after whole cable is infiltrated by surface tension
Do not drip, therefore the oil immersion situation equalization stable of oil-filled cable everywhere；When cable heated expands, the insulating oil quilt in each oily section
Capillary is evacuated to outside oil duct and is filled into the air gap of expansion, so as to effectively prevent the generation of air gap in cable；Due to oily in oily section
Amount is reduced, and hydraulic pressure reduces in each oily section；When hydraulic pressure difference is more than the gravity of orifice plug, the orifice plug below each oily section is picked up,
The fluid of lower floor's oil section is pumped down to upper strata oil section, and each oily section successively supplements fluid and finally from lower end in the presence of hydraulic pressure difference
Fuel reserve tank draws dielectric；When cable contract on cooling, the fluid in air gap and capillary is pushed back oily section, the hydraulic pressure in oily section
Increase, when hydraulic pressure is more than the gravity of orifice plug, the orifice plug above each oily section is jacked up, and the fluid of this layer of oily section is depressed into
The oily section of layer, each oily section inner fluid is successively depressed into top and is finally pooled to the fuel reserve tank of upper end in the presence of hydraulic pressure.
The present invention solve thes problems, such as that oil-filled cable lays difference in height so that oil-filled cable can widely be spread
If so as to expand the application of oil-filled cable.
Preferably, it is internally embedded induced electricity block in the flow regulator pieces and orifice plug；When cable is powered, conduit exists
Induction field is produced at flow regulator pieces and orifice plug, promotes the flow regulator pieces induced field consistent with the orifice plug generation direction of magnetization,
Flow regulator pieces and orifice plug can be adsorbed mutually in real time under magneticaction, so as to ensure the independence of each oily section, and then ensure cable
The oil mass of eminence will not be leaked because of rocking for orifice plug to lower floor.
Preferably, the wire is wrapped up by insulation oil-paper；The insulation oil-paper can increase the hair in cable
Thin degree, so as to effectively prevent the generation of air gap in cable.
Preferably, the distance between two described flow regulator pieces are less than the diameter of the orifice plug；In order to prevent throttling
Plug overturns and blocks choke valve.
Brief description of the drawings
Fig. 1 is the connection diagram of this improvement oil-filled cable one embodiment.
Fig. 2 is the end section mplifying structure schematic diagram of cable in embodiment illustrated in fig. 1.
Fig. 3 is the longitudinal section mplifying structure schematic diagram of partial cables in embodiment illustrated in fig. 1.
Embodiment
Embodiment
In the embodiment shown in Fig. 1 to Fig. 3, this improvement oil-filled cable 8 include from inside to outside oil duct 1, conduit 2,
Screen layer 3, insulating barrier 4 and protective case 5；Insulating oil is filled with the oil duct 1；The conduit 2 is closely twisted by wire
Conjunction is formed, and the wire is wrapped up by insulation oil-paper；It is described improvement oil-filled cable 8 two ends be also equipped with it is described
The fuel reserve tank 9 that oil duct 1 connects；The oil duct 1 is made by hard oil immersion film, equidistant on the axis of the oil duct 1 to be provided with
Choke valve 7, as shown in fine dotted line frame in Fig. 3；Each choke valve 7 includes two flow regulator pieces 71 perpendicular to the axis of oil duct 1,
Throttle orifice 711 is offered on each flow regulator pieces 71；It is movably installed with orifice plug 72 between two flow regulator pieces 71, two
The distance between individual described flow regulator pieces 71 are less than the diameter of the orifice plug 72, and the size is preventing orifice plug 72 in flow regulator pieces
Overturn between 71 and block choke valve 7, so as to reduce the damage probability of choke valve 7；The density of the orifice plug 72 is more than
The density of the dielectric, induced electricity block 73 is internally embedded in the flow regulator pieces 71 and orifice plug 72.
Oil-filled cable is laid by circuit planning chart；When cable water tiling is set, the orifice plug 72 in each choke valve 7
Can be in free activity, therefore each shutoff valve of cable horizontal segment remains on, the oil duct 1 of cable horizontal segment is kept
Insertion；For cable in vertical laying, orifice plug 72 covers the throttle orifice 711 positioned at the lower section of orifice plug 72 under gravity,
Now each choke valve 7 of cable vertical section remains off, and the pent choke valve 7 of oil duct 1 of cable vertical section divides
If being divided into drier oil section, the insulating oil in each oily section is independently stored, therefore even if this improvement oil-filled cable 8 has larger height
It is also not in upper end petrol starvation to spend difference, i.e., this improvement oil-filled cable 8 can realize the laying of larger difference in height, and keeps each
The oil immersion for locating cable is in good condition.
Insulating oil in oil duct 1 infiltrates conduit 2 by hard oil immersion film, and is soaked along the capillary gap between wire
Moisten whole cable；According to the principle of capillarity, insulating oil is locked in each capillary after whole cable is infiltrated by surface tension
Do not drip inside, therefore the oil immersion situation equalization stable of oil-filled cable everywhere；When cable heated expands, the insulation in each oily section
Oil is evacuated to outside oil duct 1 by capillary and is filled into the air gap of expansion, so as to effectively prevent the generation of air gap in cable；Due to oily section
Interior oil mass is reduced, and hydraulic pressure reduces in each oily section；When hydraulic pressure difference is more than the gravity of orifice plug 72, the orifice plug 72 below each oily section
Picked up, the fluid of lower floor's oil section is pumped down to upper strata oil section, and each oily section successively supplements fluid and final in the presence of hydraulic pressure difference
Dielectric is drawn from the fuel reserve tank 9 of lower end；When cable contract on cooling, the fluid in air gap and capillary is pushed back oily section, oil
Hydraulic pressure increase in section, when hydraulic pressure is more than the gravity of orifice plug 72, the orifice plug 72 above each oily section is jacked up, this layer of oily section
Fluid be depressed into upper strata oil section, each oily section inner fluid is successively depressed into top and is finally pooled to upper end in the presence of hydraulic pressure
Fuel reserve tank 9.
In the present embodiment, wire is wrapped up by insulation oil-paper；The insulation oil-paper can increase the capillary in cable
Degree so that dielectric can more fully, uniformly be full of cable, so as to effectively prevent the generation of air gap in cable；Except this it
Outside, in the present embodiment, induced electricity block 73 is internally embedded in the flow regulator pieces 71 and orifice plug 72；When cable is powered, wire
Pipe 2 produces induction field at flow regulator pieces 71 and orifice plug 72, promotes flow regulator pieces 71 consistent with the generation of orifice plug 72 direction of magnetization
Induced field, flow regulator pieces 71 and orifice plug 72 can be adsorbed mutually in real time under magneticaction, so as to ensure the only of each oily section
Vertical property, and then ensure that the oil mass of cable eminence will not be because leaking to lower floor the rocking of orifice plug 72.
In production, the weight by adjusting orifice plug 72 can adjust the pressure value that can be born in oil duct 1, and then adjust
Dielectric is supplemented to the speed of air gap when cable expands with heat and contract with cold.
The present invention solve thes problems, such as that oil-filled cable lays difference in height so that oil-filled cable can widely be spread
If so as to expand the application of oil-filled cable.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (3)
1. one kind improvement oil-filled cable, this improvement oil-filled cable（8）Include oil duct from inside to outside（1）, conduit（2）, shielding
Layer（3）, insulating barrier（4）And protective case（5）；In the oil duct（1）It is interior to be filled with insulating oil；It is characterized in that：The conduit
（2）Closely screwed up and formed by wire；In the improvement oil-filled cable（8）Two ends be also equipped with and the oil duct（1）
The fuel reserve tank of connection（9）；The oil duct（1）Made by hard oil immersion film, in the oil duct（1）Axis on equidistant be provided with
Choke valve（7）；Each choke valve（7）Include two perpendicular to oil duct（1）The flow regulator pieces of axis（71）, in each throttling
Piece（71）On offer throttle orifice（711）；In two flow regulator pieces（71）Between be movably installed with orifice plug（72）；Two institutes
State flow regulator pieces（71）The distance between be less than the orifice plug（72）Diameter；The orifice plug（72）Density be more than it is described absolutely
The density of edge liquid.
2. improvement oil-filled cable according to claim 1, it is characterised in that：The wire is wrapped up by insulation oil-paper.
3. improvement oil-filled cable according to claim 1 or 2, it is characterised in that：In the flow regulator pieces（71）And orifice plug
（72）Be internally embedded induced electricity block（73）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532439.3A CN105575495B (en) | 2015-08-27 | 2015-08-27 | Improve oil-filled cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532439.3A CN105575495B (en) | 2015-08-27 | 2015-08-27 | Improve oil-filled cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105575495A CN105575495A (en) | 2016-05-11 |
| CN105575495B true CN105575495B (en) | 2018-01-30 |
Family
ID=55885532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510532439.3A Expired - Fee Related CN105575495B (en) | 2015-08-27 | 2015-08-27 | Improve oil-filled cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105575495B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238494B (en) * | 2018-09-29 | 2020-06-26 | 国网河北省电力有限公司电力科学研究院 | Pipeline temperature measuring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798345A (en) * | 1972-07-03 | 1974-03-19 | Pirelli | Oil filled electric submarine cable with oil duct restrictors |
| CN1041057A (en) * | 1987-06-18 | 1990-04-04 | 比克有限公司 | Iknsulating liquid and cable |
| CN204215800U (en) * | 2014-12-01 | 2015-03-18 | 刘颂凯 | Exchange 500kV sea electric power cable structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09330623A (en) * | 1996-06-07 | 1997-12-22 | Sumitomo Electric Ind Ltd | Power cable |
-
2015
- 2015-08-27 CN CN201510532439.3A patent/CN105575495B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798345A (en) * | 1972-07-03 | 1974-03-19 | Pirelli | Oil filled electric submarine cable with oil duct restrictors |
| CN1041057A (en) * | 1987-06-18 | 1990-04-04 | 比克有限公司 | Iknsulating liquid and cable |
| CN204215800U (en) * | 2014-12-01 | 2015-03-18 | 刘颂凯 | Exchange 500kV sea electric power cable structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105575495A (en) | 2016-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170720 Address after: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Applicant after: Guangdong Gaohang Intellectual Property Operation Co., Ltd. Address before: Suzhou Wuzhong District City, Jiangsu province 215000 Soochow road name 125 Yu Business Plaza No. 3 Building 7 floor Applicant before: Gu Yufeng |
|
| TA01 | Transfer of patent application right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cai Chunxiao Inventor before: Gu Yufeng |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20171201 Address after: 224000 in Jiangsu province in the south of Yancheng City District Wuyou streets Huang Xiang Cun group (CNW) Applicant after: Yancheng City first cable material factory Address before: 510640 Guangdong City, Tianhe District Province, No. five, road, public education building, unit 371-1, unit 2401 Applicant before: Guangdong Gaohang Intellectual Property Operation Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 Termination date: 20190827 |