CN206272207U - A kind of DC ultra-high-voltage crosslinked cable connecting hose - Google Patents
A kind of DC ultra-high-voltage crosslinked cable connecting hose Download PDFInfo
- Publication number
- CN206272207U CN206272207U CN201621300281.3U CN201621300281U CN206272207U CN 206272207 U CN206272207 U CN 206272207U CN 201621300281 U CN201621300281 U CN 201621300281U CN 206272207 U CN206272207 U CN 206272207U
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- China
- Prior art keywords
- cable
- layer
- former
- cable connector
- connecting hose
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of DC ultra-high-voltage crosslinked cable connecting hose, its internal layer to outer layer includes respectively successively：Conductor weld zone, conductor inner semiconductor layer recovery district, the reserved section of former cable inner semiconductor layer, the crosslinked polyetylene insulated layer recovery district of cable flexible joint, former cable insulation and reagency cone, cable connector insulation out semiconductor layer recovery district, the outer semi-conducting water-resistant tape layer of cable connector insulation, the metallic shield retrieving layer of cable connector, the reserved section of metal screen layer of former cable and the outer layer polyolefin jacket of cable connector.The heavy in section welding conductors of the utility model cable flexible joint have mechanical strength higher；The extrusion molding cross-linking type technique of cable flexible joint ensures the crosslinked polyetylene insulated layer of filling and mutual fusion of the original crosslinked polyetylene insulated layer of direct current cables, and it is again cross-linking vulcanized be combined into one, gapless.
Description
Technical field
The utility model is related to a kind of direct current transportation cross-linked polyethylene insulated cable connecting hose, more particularly, to a kind of direct current
The connecting hose of EHV transmission power cable with cross-linked polyethylene insulation, also relate to it is a kind of be laid under water, seabed it is straight
Flow EHV transmission engineering the crosslinked polyetylene insulated insulation DC electric cable in seabed connecting hose and.
Background technology
In recent years, with the development of national economy, long range super high voltage direct current electricity transmission engineering obtains widely should at home
With.Due to being limited by factory's drum length of cable, long range DC transmission engineering cable must be using in excellent quality
Between joint, the cable piece made by factory is continued one by one.
Therefore, devising one kind is applied to ± 100~500kV super high voltage direct current electricity transmission power cable with cross-linked polyethylene insulations
" extrusion molding cross-linking type " connecting hose, and supporting manufacture craft and technical equipment.Reliably rationally solve land super-pressure
The transition joint of direct current power cable with cross-linked polyethylene insulation and seabed ultrahigh-voltage direct-current cross-linked polyethylene insulating power cable
Technical barrier.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electrical property reliability, can reach and superhigh voltage DC friendship
The direct current cables connecting hose of the connection equal mechanical performance of polyethylene-insulated power cable and electrical property.This direct current cables connecting hose is not only
Can be used to make the connection transition joint of land ultrahigh-voltage direct-current cross-linked polyethylene insulating power cable, and suitable for making sea
Factory's connecting hose of baselap HVDC power cable with cross-linked polyethylene insulation.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in：A kind of DC ultra-high-voltage is handed over
Connection cable flexible joint, includes conductor weld zone, conductor inner semiconductor layer recovery district, former electricity respectively successively from the inner to the outer
The reserved section of cable inner semiconductor layer, the crosslinked polyetylene insulated layer recovery district of cable flexible joint, former cable insulation and anti-
Stress cone, cable connector insulation out semiconductor layer recovery district, the outer semi-conducting water-resistant tape layer of cable connector insulation, cable
The metallic shield retrieving layer of joint, the reserved section of metal screen layer of former cable and the outer layer polyolefin jacket of cable connector.
Conductor welding inside the conductor weld zone uses the argon arc welder with silver wire of low-resistivity
Skill.
The inner shield semi-conductive tape that the conductor inner semiconductor layer recovery district is made of material identical with former cable
After wrapped, impacted process is heated with inner shield vulcanizing mold, make the semi-conductive screen band of winding and former cable inner semiconductor layer
Fusing is integral.
The crosslinked polyetylene insulated layer recovery district of the cable flexible joint will be with former cable identical direct current using extruding machine
Cable cross-linking insulating material of polyethylene, extrusion molding is filled into the technique in model cavity in the silicon rubber in insulation extruded mould.
The crosslinked polyetylene insulated layer of direct current of the cable flexible joint newly filling is placed together with former direct current cables insulating barrier
In in cable connector vulcanizing tube, the nitrogen of 0.8~1.2MPa is filled with vulcanizing tube, and vulcanizing tube is heated up to heater
180~230 DEG C, by the cure time of 1~2 hour, in high temperature, the environment of nitrogen pressure high in vulcanizing tube, make electricity
Newly the crosslinked polyetylene insulated layer of filling is merged cable connecting hose again with the mutual of the insulating barrier of former cable, and is crosslinked sulphur again
Change, be combined into one.
The cable connector insulation out semiconductor layer recovery district is added outside semiconductive polyolefin using semiconductor gel
Screen layer recovers technique, eliminates the air gap between cable flexible joint insulating barrier and out semiconductor layer.
The metallic shield retrieving layer of the cable connector is used with the metal screen layer of former cable scalds tin-welding process.
The outer layer polyolefin jacket of the cable connector uses polyolefin thermal contraction casing tube technique.
The utility model has the advantages that：
1st, to be applied to ± 100~500kV super high voltage direct current electricity transmissions crosslinked polyetylene insulated for one kind that the utility model is provided
The extrusion molding cross-linking type connecting hose of power cable, solves cable connector heavy in section product copper conductor welding difficulty and welding conductors high temperature
The relatively low technical barrier of mechanical strength after annealing, the tensile strength for making cable connector heavy in section accumulate welding copper conductor reaches 220~
230MPa 。
2nd, the extrusion molding cross-linking type joint technique of cable flexible joint, it is ensured that the crosslinked polyetylene insulated layer of direct current of new filling with
Again the crosslinking fusion of the former crosslinked polyetylene insulated layer of direct current cables, gapless.
3rd, the semiconductor gel of cable flexible joint adds semiconductive polyolefin external shielding layer to recover new technology, completely eliminates
Air gap between cable flexible joint insulating barrier and out semiconductor layer.The cable flexible joint technique skill that the utility model is provided
Art, makes the ultrahigh-voltage direct-current cross-linked polyethylene insulating power cable connecting hose being made, with excellent electric property and mechanicalness
Energy.Also be simultaneously long range, heavy in section, super-pressure subsea DC power cable with cross-linked polyethylene insulation provide one kind reliably
, the connecting hose technology of excellent performance.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the utility model cable flexible joint.
Fig. 2 presses the structural representation of vulcanizing mold for the inner shield of the utility model cable flexible joint.
Fig. 3 recovers to be extruded into the structural representation of pattern for the insulating barrier of the utility model cable flexible joint.
Fig. 4 is the structural representation of the cross-linking vulcanized cylinder of insulating barrier of the utility model cable flexible joint.
In figure：1：Conductor weld zone；
2：Conductor inner semiconductor layer recovery district；
3：The reserved section of former cable inner semiconductor layer；
4：The crosslinked polyetylene insulated layer recovery district of cable flexible joint；
5：Former cable insulation and reagency are bored；
6：Cable connector insulation out semiconductor layer recovery district；
7：The outer semi-conducting water-resistant tape layer of cable connector insulation；
8：The metallic shield retrieving layer of cable connector；
9：The reserved section of the metal screen layer of former cable；
10：The outer layer polyolefin jacket of cable connector；
101：Vulcanizing mold is pressed in cable connector inner shield；
102：The conductor semiconductive shielding layer of recovery；
103：The cable connector semi-finished product of soldered conductor；
201：Insulation extrusion molding mould injection hole；
202：Aluminum heater；
203：The outer metal pattern of extrusion moulding；
204：Extrusion moulding silicon rubber internal model；
205：Get the cable connector semi-finished product of inner semiconductor layer ready；
301：Be it is stainless steel welded into cable connector vulcanizing tube；
302：It is vulcanizing tube rubber seal head；
303：It is cable connector semi-finished product that extrusion molding has wrapped up the crosslinked polyetylene insulated layer of direct current cables；
304：It is the cooling-water duct set on the end plate of cable connector vulcanizing tube two.
Specific embodiment
The utility model direct current cross-linked polyethylene insulated cable connecting hose is made below in conjunction with accompanying drawing further retouch in detail
State.
Embodiment 1：
A kind of super high voltage direct current electricity transmission cross-linked polyethylene insulated cable connecting hose, as shown in Figure 1：Its internal layer to outer layer successively
Include respectively：Conductor weld zone 1, conductor inner semiconductor layer recovery district 2, the reserved section 3 of former cable inner semiconductor layer,
The crosslinked polyetylene insulated layer recovery district 4 of cable flexible joint, former cable insulation and reagency cone 5, cable connector insulation outer half
Insulate outer semi-conducting water-resistant tape layer 7, the metallic shield retrieving layer of cable connector for conductive shielding layer recovery district 6, cable connector
8th, the outer layer polyolefin jacket 10 of the reserved section 9 of the metal screen layer of former cable and cable connector.
Further, the conductor welding inside the conductor weld zone 1 is protected using the argon gas with silver wire of low-resistivity
Shield technology of arc welding.
Further, the interior screen that the conductor inner semiconductor layer recovery district 2 is made of material identical with former cable
Cover semi-conductive tape it is wrapped after, heat impacted process with inner shield vulcanizing mold, make half in the semi-conductive screen band of winding and former cable
Conductive shielding layer fusing is integral.
Further, the crosslinked polyetylene insulated layer recovery district 4 of the cable flexible joint will be with former cable using extruding machine
Identical direct current cables cross-linked polyethylene insulating material, extrusion molding is filled into the work in model cavity in the silicon rubber in insulation extruded mould
Skill.
Further, the crosslinked polyetylene insulated layer of direct current that the cable flexible joint is newly filled and former direct current cables insulating barrier
It is positioned over together in cable connector vulcanizing tube, the nitrogen of 0.8~1.2MPa is filled with vulcanizing tube, and with heater to vulcanizing tube
180~230 DEG C are heated up to, by the cure time of 1~2 hour, high temperature, the environment of nitrogen pressure high in vulcanizing tube
In, newly the crosslinked polyetylene insulated layer of filling is merged again with the mutual of the insulating barrier of former cable to make cable flexible joint, and weight
It is new cross-linking vulcanized, it is combined into one.
Further, the cable connector insulation out semiconductor layer recovery district 6 is added using semiconductor gel and partly led
Voltolisation alkene external shielding layer recovers technique, eliminates the air gap between cable flexible joint insulating barrier and out semiconductor layer.
Further, the metallic shield retrieving layer 8 of the cable connector is used with the metal screen layer of former cable and scalds soldering
Connect technique.
Further, the outer layer polyolefin jacket 10 of the cable connector uses polyolefin thermal contraction casing tube technique.
Embodiment 2：
The Joining Technology of above-mentioned cable flexible joint, it is comprised the following steps：
Step 1, the welding of conductor wire core：1 stripping, two terminations of cable to be connected, expose to be welded on request
Conductor, two conductors is fixed on conductor weld holder, welding.To ensure the resistivity of welding conductors, as far as possible using low electricity
The silver solder of resistance rate.From unlike common cable connector silver brazing technique, the conductor welding procedure of the utility model patent
Using band silver wire argon arc Welding.The conductor of the utility model patent is welded with mechanical strength higher, through reality
The tensile strength of test examination welding conductors is generally more than 220MPa.
In cable conductor clamps on conductor weld holder, cooling water pipeline is provided with, cooling effect is welded with to conductor,
Cooling water has taken away the high temperature produced when conductor is welded, and eliminates conductor welding high temperature and the scald of the insulation system of former cable is broken
It is bad.
Step 2, the recovery of the conductor semiconductive shielding layer of cable connector：Referring to Fig. 2,101 is that cable connector inner shield is tight
Pressure vulcanizing mold；102 is the conductor semiconductive shielding layer for recovering；103 is the cable connector semi-finished product of soldered conductor.
The reagency of stripping cable connector is bored on request.In the end of reagency cone, the reserved of inner semiconductor layer is set
Section 3, is then made with former cable identical inner shield semiconductive material, and thickness is that 0.2~0.5mm, width are 20mm
The semi-conductive screen band of left and right, it is wrapped on joint conductor, conductor inner semiconductor layer recovery district 2 is constituted, note in conductor
The two ends of semiconductive shielding layer recovery district 2 will cover the reserved section 3 of former cable inner semiconductor layer, about 10~20mm.Ginseng
See Fig. 2, the cable connector semi-finished product 103 of soldered conductor.Install that vulcanizing mold 101 is pressed in cable connector inner shield and aluminium adds
Hot plate, is heated by technological requirement, is progressively warmed up to 120 DEG C；Press vulcanizing mold gradually with bolt when being warmed up to more than 90 DEG C, make
The semi-conductive screen band 102 of winding progressively melts, and the reserved section fusing with former cable internal shield is integral, and has a small amount of
Fusing semiconductive shieldin material presses vulcanizing mold two ends and overflows from inner shield.Wait to be warmed up to more than 120 DEG C and be incubated 15 minutes or so,
Heating is removed, makes the conductor semiconductive shielding layer of recovery progressively cooling down, treat the conductor semiconductive shielding layer of cable connector 103
Repaired by technical requirements after freezing off and be molded, polishing rounding, smooth, cleaned with absolute ethyl alcohol or 99% alcohol it is clean, it is standby.
Step 3, the extrusion molding of the crosslinked polyetylene insulated layer of direct current of cable connector recovers：Referring to Fig. 3,201 is insulation extrusion molding
Mould injection hole；202 is aluminum heater；203 is the outer metal pattern of extrusion moulding；204 is extrusion moulding silicon rubber internal model；205 is standby
The cable connector semi-finished product of inner semiconductor layer are got well.
Bored by the good cable connector reagency of technical matters requirement stripping, and gradually with the grinder belt of 240~600 mesh,
The reagency cone and the section of the Insulation Material to be filled of cable that cable connector is exploited are polished smooth, dry with washes of absolute alcohol
Only.Referring to Fig. 3, the cable connector semi-finished product 205 that will get inner semiconductor layer ready are placed in insulating barrier and recover to be extruded into pattern
In tool.Aluminum heater 202 on extrusion moulding mould is equipped with, the die cavity of silicon rubber internal model 204 of the extrusion molding mould that insulate is warmed up to 100
~120 DEG C, then will be got ready with extruding machine and be filled into former cable identical direct current cables cross-linked polyethylene insulating material, extrusion molding
In the die cavity of silicon rubber internal model 204 of insulation extruded mould.The Insulation Material temperature for waiting for a period of time to be filled is brought down below 50 DEG C
Afterwards, mould is removed, cable connector is taken out, external form finishing is slightly done, waits to vulcanize.
Using silicon rubber liner mould 204 do extrusion molding die cavity have the advantages that it is as follows：
First, silicon rubber mould has certain elasticity, in the insulated cable material cooling meat of extrusion molding injection, silicon rubber liner
Mould follows synchronous with the cross-linked polyethylene insulated cable material of filling, it is to avoid cable connector filling it is crosslinked polyetylene insulated
Shrinkage defect is produced in material cooling procedure.
Second：Silicon rubber mould extrusion molding die cavity thermal resistance is larger, and the cross-linked polyethylene insulated cable material for injecting extrusion molding is slowly cold
But, prevented quickly to be cooled down using metal die and pulled the defect that cross-linked polyethylene insulated cable material forms cavity.
Step 4, the crosslinked polyetylene insulated layer vulcanization of direct current of cable connector：Referring to Fig. 4,301 be it is stainless steel welded into
Cable connector vulcanizing tube；302 is vulcanizing tube rubber seal head；303 is that extrusion molding has wrapped up the crosslinked polyetylene insulated layer of direct current cables
Cable connector semi-finished product；304 is the cooling-water duct set on the end plate of cable connector vulcanizing tube two.
The procedure is the crosslinked polyetylene insulated layer of direct current and former direct current cables crosslinked polyethylene for solving connecting hose filling
The critical process of the fusion that is cross-linked with each other of insulating barrier.Extrusion molding has been recovered the direct current cables joint of crosslinked polyetylene insulated layer,
It is placed in the cable connector vulcanizing tube 301 such as drawing 4, device has rubber seal head between the two ends of cable connector and vulcanizing tube
302, also there is rubber gasket between upper and lower vulcanizing tube.Auxiliary has filled up especially preparation between cable and rubber seal simultaneously
Cable accessory fluid sealant, carry out the sealing between vulcanizing tube and cable connector.Then it is filled with 0.8~1.2MPa's in vulcanizing tube
Nitrogen, assembles aluminum heater and vulcanizing tube is heated, and heating-up temperature is set as 180~230 DEG C.According to direct current cables connecting hose
Size, sets different cure times.Typically by the cure time of 1~2 hour, high temperature, nitrogen high in vulcanizing tube
In the environment of pressure, newly the crosslinked polyetylene insulated layer of direct current of filling is exhausted with former direct current cables crosslinked polyethylene for cable connector
Mutually merging again for edge layer, it is and again cross-linking vulcanized, be combined into one, the insulating barrier of new filling and former cable insulation it
Between no longer have gap, this is to ensure that super high voltage direct current electricity transmission power cable with cross-linked polyethylene insulation " extrusion molding cross-linking type " soft connects
Head makes the key problem in technology of quality.
Referring to Fig. 3, cooling-water duct 304 is provided with two end plate of the cross-linking vulcanized cylinder of cable connector, makes vulcanizing tube
Two end plates are unlikely to scald adapter lead because temperature is too high during cable flexible joint high temperature, hyperbar are cross-linking vulcanized, and
The seal at vulcanizing tube two ends is set to be unlikely to the gas leakage because of high temperature.
After the completion of the crosslinked polyetylene insulated layer vulcanization of direct current of cable flexible joint, cooling, removal vulcanizing tube 301 will vulcanize
The direct current cables connecting hose of crosslinked polyetylene insulated layer is got well by technical matters requirement, referring to Fig. 1, gradually with the gold of 240~600 mesh
Steel belt sanding, clean up it is standby.
Step 5, the recovery of cable connector insulation out semiconductor layer：Superhigh voltage DC of the present utility model is crosslinked poly- second
The recovery of the insulation out semiconductor layer of alkene insulated power cable connecting hose, with conventional power cable with cross-linked polyethylene insulation
It is entirely different that connecting hose out semiconductor layer recovers technique.Cable connector insulation out semiconductor layer of the present utility model is extensive
It is multiple, it is that the semiconductor that last layer especially allotment is first uniformly coated on the crosslinked polyetylene insulated layer of cable connector got ready coagulates
Glue, then heats rapid solidification with heat gun to the semiconductor gel layer for applying.This layer of semiconductor gel can connect with cable
Crosslinked polyetylene insulated layer link fusion, then covers outer semiconductive polyolefin screen layer on semiconductor gel.So
Can ensure thoroughly to eliminate the air gap between the crosslinked polyetylene insulated layer of cable connector and out semiconductor layer, make what is be made to surpass
HVDC power cable with cross-linked polyethylene insulation connecting hose has more preferable electric property.
Step 6, the layer structure of cable connector recovers：HVDC power cable with cross-linked polyethylene insulation connecting hose it is exhausted
After edge external shielding layer completes, the key technology technique of cable flexible joint has been carried out.Cable flexible joint need to then be to do is to
External structure recover.Land direct current cables is entirely different with the outer jacket structure of subsea DC cable, and the technique of recovery is not yet
Together.
The direct current cables metallic shield outer jacket on land recovers, as long as being made from level to level i.e. according to the layer structure of cable
Can.Referring to Fig. 1, the outer semi-conducting water-resistant tape layer 7 of cable connector insulation is recovered；Making connecting hose outer layer metal screen layer
When the metal screen layer 8 of recovery must be reliably welded on one with the reserved section 9 of metal screen layer that former cable two ends be exposed
Rise.Generally using boiling hot tin welding.The metallic shield outer layer polyolefin jacket 10 of land direct current cables recovers, general using poly-
Alkene thermal contraction casing tube technique.
It is more complicated that subsea DC cable metal screen layer and steel wire armor layer recover technique.Seabed superhigh voltage DC crosslinking is poly-
The metal screen layer of ethene insulated power cable typically uses lead pipe sheath.The lead pipe sheath of subsea cable soft joint recovers, ginseng
See Fig. 1, recover wrapped several layers of semiconductor waterstop 7, Ran Houzai on the insulation out semiconductor layer of cable flexible joint first
Put previously prepared alloy lead sleeve.Or with 2~4mm thick stereotype in the cable flexible joint outer semiconductor waterstop of insulation
Suitable lead sleeve sheath is repaired out on 7.Then welded using oxyhydrogen flame, or boiling hot tin welding recovers subsea cable soft joint
Outer layer lead sheath.Note make cable flexible joint outer layer lead sheath must with former cable two ends expose lead pipe sheath can
Weld together by ground.The recovery of the plastic sheath of subsea DC cable connecting hose frequently with polyolefin thermal contraction casing tube technique,
Also plastics adhesive tape multilayer around-packing technology can be used.Subsea DC cable connecting hose steel wire armor layer is recovered, generally using former electricity
Electric arc welding recovers technique to the same steel wire of cable one by one.
One kind that the utility model is provided is applied to ± 100~500kV crosslinked polyetylene insulated electricity of super high voltage direct current electricity transmission
The extrusion molding cross-linking type connecting hose of power cable, solves cable connector heavy in section product copper conductor welding difficulty and welding conductors high temperature is moved back
The relatively low technical barrier of mechanical strength after fire, the tensile strength for making cable connector heavy in section accumulate welding copper conductor reaches 220-
230MPa .The extrusion molding cross-linking type joint technique of cable flexible joint, it is ensured that the crosslinked polyetylene insulated layer of direct current of new filling and original
Again the crosslinking fusion of the crosslinked polyetylene insulated layer of direct current cables, gapless.The semiconductor gel of cable flexible joint adds partly leads
Voltolisation alkene external shielding layer recovers new technology, completely eliminates the gas between cable flexible joint insulating barrier and out semiconductor layer
Gap.The cable flexible joint technology that the utility model is provided, makes the ultrahigh-voltage direct-current cross-linked polyethylene insulating electric power electricity being made
Cable connecting hose, with excellent electric property and mechanical performance.Also it is simultaneously long range, heavy in section, the friendship of super-pressure subsea DC
Connection polyethylene-insulated power cable provides a kind of reliable, connecting hose technology of excellent performance.
Above-described embodiment is used for illustrating the utility model, is limited rather than to the utility model, in this practicality
In new spirit and scope of the claims, any modifications and changes made to the utility model both fall within this reality
With new protection domain.
Claims (8)
1. a kind of DC ultra-high-voltage crosslinked cable connecting hose, it is characterised in that：Include solderable conductor respectively successively from the inner to the outer
Meet area（1）, conductor inner semiconductor layer recovery district（2）, former cable inner semiconductor layer reserved section（3）, cable is soft connects
The crosslinked polyetylene insulated layer recovery district of head（4）, former cable insulation and reagency cone（5）, cable connector insulate outer semiconductive
Screen layer recovery district（6）, cable connector insulate outer semi-conducting water-resistant tape layer（7）, cable connector metallic shield retrieving layer
（8）, former cable the reserved section of metal screen layer（9）With the outer layer polyolefin jacket of cable connector（10）.
2. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：The conductor weld zone
（1）Internal conductor welding uses the argon arc Welding with silver wire of low-resistivity.
3. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：Partly led in the conductor
Shield layer recovery district（2）After the inner shield semi-conductive tape that is made of material identical with former cable is wrapped, vulcanized with inner shield
Mould heats impacted process, makes the semi-conductive screen band of winding integral with former cable inner semiconductor layer fusing.
4. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：The cable flexible joint
Crosslinked polyetylene insulated layer recovery district（4）Will be crosslinked polyetylene insulated with former cable identical direct current cables using extruding machine
Material, extrusion molding is filled into the technique in model cavity in the silicon rubber in insulation extruded mould.
5. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 4, it is characterised in that：The cable flexible joint
The crosslinked polyetylene insulated layer of direct current of new filling is positioned in cable connector vulcanizing tube together with former direct current cables insulating barrier, in sulphur
Change in cylinder and be filled with the nitrogen of 0.8~1.2MPa, and 180~230 DEG C are heated up to vulcanizing tube with heater, by 1~2 hour
Cure time, in high temperature, the environment of nitrogen pressure high in vulcanizing tube, makes the crosslinked polyethylene of cable flexible joint newly filling
Insulating barrier is mutually merged again with the insulating barrier of former cable, and again cross-linking vulcanized, is combined into one.
6. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：The cable connector is exhausted
Edge out semiconductor layer recovery district（6）Add semiconductive polyolefin external shielding layer to recover technique using semiconductor gel, eliminate
Air gap between cable flexible joint insulating barrier and out semiconductor layer.
7. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：The cable connector
Metallic shield retrieving layer（8）Used with the metal screen layer of former cable and scald tin-welding process.
8. a kind of DC ultra-high-voltage crosslinked cable connecting hose according to claim 1, it is characterised in that：The cable connector
Outer layer polyolefin jacket（10）Using polyolefin thermal contraction casing tube technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300281.3U CN206272207U (en) | 2016-11-30 | 2016-11-30 | A kind of DC ultra-high-voltage crosslinked cable connecting hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300281.3U CN206272207U (en) | 2016-11-30 | 2016-11-30 | A kind of DC ultra-high-voltage crosslinked cable connecting hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206272207U true CN206272207U (en) | 2017-06-20 |
Family
ID=59041993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621300281.3U Withdrawn - After Issue CN206272207U (en) | 2016-11-30 | 2016-11-30 | A kind of DC ultra-high-voltage crosslinked cable connecting hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206272207U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451313A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage cross-linked cable soft connector and manufacturing process |
| CN109861047A (en) * | 2018-11-20 | 2019-06-07 | 嘉兴市新缆电缆有限公司 | A method of extending cable length |
| CN112038790A (en) * | 2020-08-05 | 2020-12-04 | 瑞邦电力科技有限公司 | Prefabricated fusion-spliced cable insulation joint and manufacturing method thereof |
| CN113315086A (en) * | 2021-04-19 | 2021-08-27 | 宁波东方电缆股份有限公司 | High-voltage-grade crosslinked polyethylene cable insulation joint |
| CN113744935A (en) * | 2021-09-08 | 2021-12-03 | 中天科技海缆股份有限公司 | Processing method of cable core, cable core and cable |
| WO2023221460A1 (en) * | 2022-05-19 | 2023-11-23 | 南方电网科学研究院有限责任公司 | Liquid phase impregnation-based reinforcement method and device for repair interface of flexible joint of high-voltage cable |
| CN117584392A (en) * | 2024-01-19 | 2024-02-23 | 哈尔滨理工大学 | Pressure-maintaining rectifying type factory joint heating system and application method thereof |
-
2016
- 2016-11-30 CN CN201621300281.3U patent/CN206272207U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451313A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage cross-linked cable soft connector and manufacturing process |
| CN109861047A (en) * | 2018-11-20 | 2019-06-07 | 嘉兴市新缆电缆有限公司 | A method of extending cable length |
| CN112038790A (en) * | 2020-08-05 | 2020-12-04 | 瑞邦电力科技有限公司 | Prefabricated fusion-spliced cable insulation joint and manufacturing method thereof |
| CN112038790B (en) * | 2020-08-05 | 2021-08-06 | 瑞邦电力科技有限公司 | Prefabricated fusion-spliced cable insulation joint and manufacturing method thereof |
| CN113315086A (en) * | 2021-04-19 | 2021-08-27 | 宁波东方电缆股份有限公司 | High-voltage-grade crosslinked polyethylene cable insulation joint |
| CN113744935A (en) * | 2021-09-08 | 2021-12-03 | 中天科技海缆股份有限公司 | Processing method of cable core, cable core and cable |
| WO2023221460A1 (en) * | 2022-05-19 | 2023-11-23 | 南方电网科学研究院有限责任公司 | Liquid phase impregnation-based reinforcement method and device for repair interface of flexible joint of high-voltage cable |
| CN117584392A (en) * | 2024-01-19 | 2024-02-23 | 哈尔滨理工大学 | Pressure-maintaining rectifying type factory joint heating system and application method thereof |
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