CN207753391U - The twisted polyethylene cable adapter repaired based on pouring-in insulation - Google Patents
The twisted polyethylene cable adapter repaired based on pouring-in insulation Download PDFInfo
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- CN207753391U CN207753391U CN201721680824.3U CN201721680824U CN207753391U CN 207753391 U CN207753391 U CN 207753391U CN 201721680824 U CN201721680824 U CN 201721680824U CN 207753391 U CN207753391 U CN 207753391U
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Abstract
The utility model discloses a kind of twisted polyethylene cable adapters repaired based on pouring-in insulation, are related to power cable recovery technique field.The twisted polyethylene cable adapter repaired based on pouring-in insulation, including front end liquid injection pipe, front end pagoda connector, reducing concentric reducer, rear end pagoda connector and rear end liquid injection pipe；By one end of different model pagoda connector connection is matched with the microcephaly of reducing concentric reducer and major part, the adaptable liquid injection pipe of other end size for connection, the utility model adapter and the assembling for being unable to O. cable can be realized, by injecting air pressure and repairing the reparation of liquid realization aging cable；The reparation of different cross section cable can be realized by replacing various sizes of front end liquid injection pipe, front end pagoda connector, reducing concentric reducer, rear end pagoda connector and rear end liquid injection pipe；The utility model is simple in structure, and installation is quick, good airproof performance, convenient disassembly, bears pressure height, is suitable for the repair of on-site cable.
Description
Technical field
The utility model belongs to power cable recovery technique field more particularly to a kind of friendship repaired based on pouring-in insulation
Join PE cable adapter.
Background technology
In recent years, growing day by day with China urban power consumption, urban distribution network scale constantly expands.Compared to traditional
Overhead transmission line, crosslinked polyethylene (Cross Linked Polyethylene, XLPE) power cable due to power supply reliability height,
Many advantages, such as wiring is not influenced by ground, space buildings object, is conducive to beautifying city is made in power distribution network by a large amount of layings
With.However, since the opposite shortcoming cable of the electric power of China's early stage and manufacturing enterprise is manufactured, mounting and installation and operation and maintenance
Etc. means and experience, largely that there are raceway groove ponding is serious in the buried cable of operation, ditch rate is high altogether, overload and heat dissipation
The problems such as, these lead to the water-treeing that there are problems that different degrees of inside the cable insulation of operation.It is laid with early stage
The buried cable operation time limit gradually increases, and partial cables enter the failure high-incidence season, and the cable for running more than 10 years by 2009 is
Close to 40%, there are great security risks.Insulation ag(e)ing is to lead to the most important original of cable power outage in addition to external force is destroyed
Because, and water-treeing is the principal mode of cable insulation aging and the lost of life.Therefore, in the past few decades, many states
Inside and outside scholar is dedicated to the growth mechanism of water tree and its braking measure research in cable.General 10 kV twisted polyethylene cables are set
It is 20 to 30 years to count the service life, and when some researches show that running more than 15 years, the breakdown voltage range of decrease is likely to be breached 50% or so.
For the reparation problem of water-treeing XLPE cable, domestic and international researcher is carrying out a large amount of chemical experiment and life
After production application, it is proposed that repair the injection recovery technique of liquid based on organosilicon.Its repair mechanism is to utilize pressure injection device
A kind of quick, hydrophilic silane liquid of diffusion is injected into XLPE cable insulating layer, liquid is repaired and once diffuses to water tree area
With moisture hydrolysis-condensation will occur for domain and react to eliminate moisture, while generate organic matter filling water tree cavity, to extend electricity
The service life of cable.External more than 20 years commercial experience shows that the recovery technique has good insulation recovery effect, has saved big
The cost of amount.The scholars such as the Zhu Xiaohui of domestic Tianjin DianKeYuan also carried out research to the technology, and were demonstrate,proved by field experiment
The repairing effect of the technology is illustrated.Organosilicon cable insulation recovery technique since 1989 are suggested for the first time, it is external by
Input business uses more than 25 years, has repaired the cable more than 2.5 ten thousand kilometers, these cables are still putting into operation even to this day.
And the existing cable adaptor used for field repair, there is different degrees of application problem, such as cable connection consumption
When it is longer, bear that air pressure is not high, the bad equal practical application for limiting organosilicon recovery technique of air-tightness.As can solving above-mentioned
The problem of cable adaptor, then solves a large amount of aging cable for the industrial practical application and urban distribution network of recovery technique and provides
One completely new thinking.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of crosslinked polyethylene electricity repaired based on pouring-in insulation
Cable adapter.
The utility model is to solve above-mentioned technical problem by the following technical solutions：One kind being based on pouring-in insulation
The twisted polyethylene cable adapter of reparation, including front end liquid injection pipe, front end pagoda connector, reducing concentric reducer, rear end pagoda connect
Head and rear end liquid injection pipe；One end of the front end pagoda connector and rear end pagoda connector passes through screw thread and the reducing size respectively
The microcephaly of head and major part are connected with each other matching；The other end of the front end pagoda connector and rear end pagoda connector is respectively by removable
The formula hose clamp of unloading is installed with the adaptable front end liquid injection pipe of size and rear end liquid injection pipe；In repairing test, insert the cable into
It in the liquid injection pipe of rear end, is sealed and fixes, then injected by front end liquid injection pipe and repair liquid and air pressure, under the effect of the pressure will
It repairs hydraulic pressure and enters cable conductor, realize the field repair to aging cable；By replacing various sizes of front end liquid injection pipe, front end
Pagoda connector, reducing concentric reducer, rear end pagoda connector and rear end liquid injection pipe, realize the reparation of the cable of different cross section.
Further, the front end liquid injection pipe uses internal diameter for the standard transparent pneumatic hose of 6mm, the front end liquid injection pipe
It is connect with device for storing liquid, device for storing liquid is connect with air compressor, by air compressor by the reparation liquid inside device for storing liquid
It injects in the liquid injection pipe of front end, and is pressed further into cable conductor under pressure.
Further, the rear end liquid injection pipe using PVC enhance reticulated duct, internal diameter 32mm, can with 10kV grades,
Section is 95mm2-150mm2Cable be mutually matched.
Further, the front end pagoda connector uses 304 stainless steel hexagonal pagoda connectors, screw thread 4 to divide, and outer diameter is
6mm；The front end pagoda head matches connection with front end liquid injection pipe, and threaded portion matches connection with the microcephaly of reducing concentric reducer.
Further, the rear end pagoda connector uses 304 stainless steel hexagonal pagoda connectors, 1.2 cun of screw thread, outer diameter
32mm；The rear end pagoda connector matches connection with rear end liquid injection pipe, and threaded portion matches company with the major part of reducing concentric reducer
It connects.
Further, it is 1.2 cun of 4 points of internal threads that the reducing concentric reducer, which uses 304 stainless steel reducer unions, size,.
Further, the outer semiconducting layer of the cable has swathed filling adhesive tape, makes itself and rear end fluid injection bore phase
Match, is sealed using detachable hose clamp in the joint of cable and rear end liquid injection pipe, realizes whole sealing and fixation.
Further, the cable is four groups of type water resistant tree twisted polyethylene cables, and four groups of types water resistant tree crosslinking is poly-
Ethylene cable includes the equal single group water resistant tree twisted polyethylene cable of four outer diameters, and the single group water resistant tree of arbitrary neighborhood is crosslinked
PE cable is mutually circumscribed.
Compared with prior art, the twisted polyethylene cable provided by the utility model repaired based on pouring-in insulation is suitable
Orchestration, including front end liquid injection pipe, front end pagoda connector, reducing concentric reducer, rear end pagoda connector and rear end liquid injection pipe；Pass through difference
One end of model pagoda connector matches connection, the adaptable fluid injection of other end size for connection with the microcephaly of reducing concentric reducer and major part
Pipe, you can realize the utility model adapter and be unable to the assembling of O. cable, aging is realized by injecting air pressure and repairing liquid
The reparation of cable；It can be by replacing various sizes of front end liquid injection pipe, front end pagoda connector, reducing concentric reducer, rear end pagoda
Connector and rear end liquid injection pipe realize the reparation of different cross section cable；The utility model is simple in structure, and installation is quick, good airproof performance,
Convenient disassembly bears pressure height, is suitable for the repair of on-site cable.
Description of the drawings
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structural representation for the twisted polyethylene cable adapter repaired based on pouring-in insulation of the utility model
Figure；
Wherein：The front ends 1- liquid injection pipe, the front ends 2- pagoda connector, the rear ends 3- pagoda connector, 4- reducing concentric reducers, the rear ends 5- note
Liquid pipe, 6- fill adhesive tape, 7- cables, 8- hose clamps.
Specific implementation mode
With reference to the attached drawing in the utility model embodiment, to this implement it is novel in technical solution carry out it is clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained under the premise of not making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of twisted polyethylene cable repaired based on pouring-in insulation provided by the utility model is suitable
Orchestration, including front end liquid injection pipe 1, front end pagoda connector 2, reducing concentric reducer 4, rear end pagoda connector 3 and rear end liquid injection pipe 5；Before
One end of pagoda connector 2 and rear end pagoda connector 3 is held to be connected with each other respectively by the microcephaly and major part of screw thread and reducing concentric reducer 4
Matching；The other end of front end pagoda connector 2 and rear end pagoda connector 3 is installed with size by detachable hose clamp 8 respectively
Adaptable front end liquid injection pipe 1 and rear end liquid injection pipe 5；
In repairing test, 7 front end of cable is swathed into certain thickness filling adhesive tape 6, is inserted into rear end liquid injection pipe 5, Gu
Fixed detachable hose clamp 8 is sealed cable 7 and the junction portion of rear end liquid injection pipe 5, then will repair liquid injection by pressure
Front end liquid injection pipe 1 repairs liquid and is pressed into 7 cable core of cable, realizes the field repair to aging cable 7 under the effect of the pressure；It is logical
It crosses and replaces various sizes of front end liquid injection pipe 1, front end pagoda connector 2, reducing concentric reducer 4, rear end pagoda connector 3 and rear end fluid injection
Pipe 5 realizes the reparation of the cable 7 of different cross section.
Front end liquid injection pipe 1 uses internal diameter for the standard transparent pneumatic hose of 6mm, front end liquid injection pipe 1 and air compressor and
Device for storing liquid connects, and is used for compressed air and repairs in liquid fill adapter, and is pressed further into cable 7 under pressure
In cable core.Rear end liquid injection pipe 5 enhances reticulated duct using PVC, and internal diameter 32mm can be with 10kV grades, section 95mm2-
150mm2Cable be mutually matched.
Front end pagoda connector 2 uses 304 stainless steel hexagonal pagoda connectors, screw thread 4 to divide, outer diameter 6mm；Front end pagoda head
Connection is matched with front end liquid injection pipe 1, threaded portion matches connection with the microcephaly of reducing concentric reducer 4.Rear end pagoda connector 3 uses
304 stainless steel hexagonal pagoda connectors, 1.2 cun of screw thread, outer diameter 32mm；Rear end pagoda connector 3 and 5 company of matching of rear end liquid injection pipe
It connects, threaded portion matches connection with the major part of reducing concentric reducer 4.Reducing concentric reducer 4 uses 304 stainless steel reducer unions,
Size is 1.2 cun of 4 points of internal threads.
The operation principle of the utility model is：Front end liquid injection pipe 1, front end pagoda connector 2, reducing concentric reducer 4, rear end is precious
Tower connector 3 and rear end liquid injection pipe 5 are sequentially connected, by the outer semiconducting layer of cable 7 swathe filling adhesive tape 6 after with rear end liquid injection pipe
5 matching connections, are used in combination detachable hose clamp 8 to fix；Front end liquid injection pipe 1 is connect with air compressor and device for storing liquid again, is tried
When testing, entered liquid stream is repaired in the utility model adapter using the air pressure of 0.2MPa, and be pressed into 7 cable of cable under pressure
In core, the field repair to water-treeing cable is realized.
Above disclosed is only specific embodiment of the present utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in change
Change or modification, should be covered within the scope of the utility model.
Claims (8)
1. a kind of twisted polyethylene cable adapter repaired based on pouring-in insulation, it is characterised in that：Including front end liquid injection pipe,
Front end pagoda connector, reducing concentric reducer, rear end pagoda connector and rear end liquid injection pipe；The front end pagoda connector and rear end pagoda connect
One end of head is matched by screw thread with the microcephaly of the reducing concentric reducer and major part interconnection respectively；The front end pagoda connector
With the other end of rear end pagoda connector respectively by detachable hose clamp be installed with the adaptable front end liquid injection pipe of size and
Rear end liquid injection pipe；It in repairing test, inserts the cable into the liquid injection pipe of rear end, is sealed and fixes, then pass through front end fluid injection
Liquid and air pressure are repaired in pipe injection, will be repaired hydraulic pressure under the effect of the pressure and are entered cable conductor, the scene of aging cable is repaiied in realization
It is multiple.
2. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The front end liquid injection pipe uses internal diameter
For the standard transparent pneumatic hose of 6mm, the front end liquid injection pipe is connect with device for storing liquid, and device for storing liquid connects with air compressor
It connects, is injected the reparation liquid inside device for storing liquid in the liquid injection pipe of front end by air compressor.
3. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The rear end liquid injection pipe uses PVC
Enhance reticulated duct, internal diameter 32mm can be with 10kV grades, section 95mm2-150mm2Cable be mutually matched.
4. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The front end pagoda connector uses
304 stainless steel hexagonal pagoda connectors, screw thread 4 divide, outer diameter 6mm.
5. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The rear end pagoda connector uses
304 stainless steel hexagonal pagoda connectors, 1.2 cun of screw thread, outer diameter 32mm.
6. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The reducing concentric reducer uses 304
Stainless steel reducer union, size are 1.2 cun of 4 points of internal threads.
7. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The outer semiconducting layer of the cable twines
It is wrapped with filling adhesive tape, it is made to match with rear end fluid injection bore, in the joint of cable and rear end liquid injection pipe using detachable
Formula hose clamp is sealed, and realizes whole sealing and fixation.
8. twisted polyethylene cable adapter as described in claim 1, it is characterised in that：The cable is four groups of type water resistant trees
Twisted polyethylene cable, four groups of types water resistant tree twisted polyethylene cable include the equal single group water resistant tree crosslinking of four outer diameters
PE cable, and the single group water resistant tree twisted polyethylene cable of arbitrary neighborhood is mutually circumscribed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721680824.3U CN207753391U (en) | 2017-12-06 | 2017-12-06 | The twisted polyethylene cable adapter repaired based on pouring-in insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721680824.3U CN207753391U (en) | 2017-12-06 | 2017-12-06 | The twisted polyethylene cable adapter repaired based on pouring-in insulation |
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| CN207753391U true CN207753391U (en) | 2018-08-21 |
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| CN201721680824.3U Active CN207753391U (en) | 2017-12-06 | 2017-12-06 | The twisted polyethylene cable adapter repaired based on pouring-in insulation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462194A (en) * | 2018-09-18 | 2019-03-12 | 广西电网有限责任公司电力科学研究院 | A kind of method of determining power cable field repair time |
| CN112165019A (en) * | 2020-09-22 | 2021-01-01 | 南方电网科学研究院有限责任公司 | Connector and repair device for bad electrical contact inside high-voltage cable |
| CN112864968A (en) * | 2021-01-18 | 2021-05-28 | 天津大学 | High-pressure crosslinked polyethylene cable buffer layer repairing device and repairing method thereof |
| CN113258507A (en) * | 2021-05-21 | 2021-08-13 | 四川大学 | Cross-linked polyethylene targeted repair experimental platform based on dielectrophoresis and repair method |
-
2017
- 2017-12-06 CN CN201721680824.3U patent/CN207753391U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462194A (en) * | 2018-09-18 | 2019-03-12 | 广西电网有限责任公司电力科学研究院 | A kind of method of determining power cable field repair time |
| CN112165019A (en) * | 2020-09-22 | 2021-01-01 | 南方电网科学研究院有限责任公司 | Connector and repair device for bad electrical contact inside high-voltage cable |
| CN112165019B (en) * | 2020-09-22 | 2022-02-18 | 南方电网科学研究院有限责任公司 | Connector and repair device for bad electrical contact inside high-voltage cable |
| CN112864968A (en) * | 2021-01-18 | 2021-05-28 | 天津大学 | High-pressure crosslinked polyethylene cable buffer layer repairing device and repairing method thereof |
| CN113258507A (en) * | 2021-05-21 | 2021-08-13 | 四川大学 | Cross-linked polyethylene targeted repair experimental platform based on dielectrophoresis and repair method |
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