CN206619435U - A kind of shield machine shields high-tension cable - Google Patents
A kind of shield machine shields high-tension cable Download PDFInfo
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- CN206619435U CN206619435U CN201621356589.XU CN201621356589U CN206619435U CN 206619435 U CN206619435 U CN 206619435U CN 201621356589 U CN201621356589 U CN 201621356589U CN 206619435 U CN206619435 U CN 206619435U
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Abstract
High-tension cable is shielded the utility model discloses a kind of shield machine, including cable core, described cable core is by three power wire cores, two wire cores and a root multimode fiber is stranded forms；Semiconducting rubber packing is filled in the gap of cable core, belting layer is extruded outside cable core, high fire-retardance haloflex rubber inner sheath is extruded outside semi-conductive non-woven fabric band, the enhancement layer of impregnation polyester cord braiding is extruded in high fire-retardance rubber inner sheath, finally cold-resistant fire-retardant high anti-tear haloflex rubber oversheath is extruded in cable outermost layer.The power supply that the cable is used for tunnel piercing ultra-large type special equipment shield machine is connected, possesses excellent shielding properties, fire-retardant, the performance such as low temperature resistant, flex life length, and keep cable is smooth to transmit electric power, meet shield machine and run well in the rugged environments such as tunnel, underground engineering construction.
Description
Technical field
The utility model is related to field of cable technology, more particularly to a kind of shield machine shielding high-tension cable.
Background technology
With the fast development of China's economy, Construction of Urban Rail Traffic is also persistently overheating, by the end of in May, 2010, I
The big city metro operation total kilometrage of state ten is 1039 kilometers, has given an written reply 27 cities for being approved to build, proposed before the end of the year in 2016
92 circuits, 2677 kilometers of total length.It was predicted that the year two thousand twenty, China will have 36 cities to possess subway, urban track traffic is tired out
Meter revenue kilometres are up to 11042 kilometers.It can be seen that, following 5-10 will welcome the development peak period of subway.Shield machine is used as master
It is used for the indispensable automated machine equipment of underground tunnel project, its demand is also growing, this will also drive shield electromechanical
The market demand of cable.
Shield machine is used as the state-of-the-art tunnel piercing ultra-large type special equipment in the world today, the shield of China about 85%
Development machine dependence on import, the shield machine of the company such as Europe and Japan is occupied an leading position in Chinese shield excavation machine in the market.In order to
Change this passive situation as early as possible, at present, the enterprise such as Shanghai tunnel, northern heavy industry, middle iron tunnel, 31 heavy industrys, Xu Gong, tall building work
Industry, has production base, enhances independent research and development capacity, constantly bears fruit, and having been able to production has independent intellectual production
The shield dress equipment of power, the cable for shield machine that Domestic Shield machine is also required to function admirable is matched, therefore, studying a kind of shield machine
The need for shielding high-tension cable is shield excavation machine development, the developing direction of track traffic cable product, shield machine also represent
The shielding properties of cable, fire-retardant, low temperature resistant, flex life, intelligent control, to improving the security performance of shield machine equipment, entering one
Step ensures Tunnel Engineering safety in production, will play highly important effect.
Construction of Urban Rail Traffic develops, the modernization of Shield-type machinery so that high-grade, the Special cable for shield machine of high-quality
Important role is served as, therefore, developing a kind of shield machine shielding high-tension cable, to substitute import cable for shield machine, simultaneously
Meet the fire-retardant of track traffic cable for shield machine, resist bending, low temperature resistant, service life length and just seem particularly necessary, and to shield
Structure machine shields grinding for conductor shielding layer material, insulating layer material, insulation shielding layer material and the interior jacket material of high-tension cable
Study carefully exploitation, and cable cover(ing) enhancement layer structure design is the key that shield machine shields high-tension cable.
Utility model content
The utility model shields high-tension cable, the cable to solve problem of the prior art there is provided a kind of shield machine
Power supply for tunnel piercing ultra-large type special equipment shield machine is connected, and possesses excellent shielding properties, fire-retardant, low temperature resistant, curved
The performances such as bent long lifespan, and keep cable is smooth to transmit electric power, shield machine is met in the severe ring such as tunnel, underground engineering construction
Run well in border.
A kind of shield machine shielding high-tension cable described in the utility model, including cable core, described cable core is by three power
Core, two wire cores and a root multimode fiber is stranded forms；Semiconducting rubber packing is filled in the gap of cable core,
Belting layer is extruded outside cable core, high fire-retardance haloflex rubber inner sheath is extruded outside semi-conductive non-woven fabric band, in high fire-retardance rubber
Intracutaneous sheath extrudes the enhancement layer of impregnation polyester cord braiding, finally extrudes cold-resistant fire-retardant high anti-tear chlorine in cable outermost layer
Change polyethylene rubber oversheath；Described belting layer wrapped is formed by one layer of semi-conductive tape and layer of non-woven fabric band are overlapping；It is described
The enhancement layer of impregnation polyester cord braiding is completely embedded into the top layer of inner sheath, and inner sheath vulcanizes in outer sheathing to be caused
Inner sheath, enhancement layer and oversheath are combined together, and form an entirety.
Further improve, described power wire core is led by power line conductor and by the way that catenary suspension type continuous vulcanization is three-layer co-extruded in power line
External conductor shield, ethylene-propylene rubber insulated layer and insulation screen is constituted.
Further improve, described wire core by ground wire core conductor and be extruded in outside ground wire core conductor with EPDM
Constituted for the semi-conductive layer of base-material Halogen semiconducting rubber.
Further improve, described conductor shield is extruded by EPDM for the cross-linking type semi-conductive screen rubber of base-material
Form, the Ω cm of specific insulation≤100.
Further improve, described insulation screen is by the peelable friendship of acetate ethylene copolymer and nitrile rubber for base-material
Connection type semi-conductive screen rubber, which is extruded, to be formed, the Ω cm of specific insulation≤100.
Further improve, the insulating barrier pressed in using EPDM as the cross-linking type of base-material the insulation rubber of second third extrude and
Into dielectric loss tan δ maximums are 400 × 104, specific insulation minimum value is 5 × 1015 Ω·cm。
Compared with prior art, the utility model beneficial effect is：
The Ω cm of the specific insulation of the utility model conductor shielding rubber and insulation shielding rubber≤100；Insulating barrier is adopted
Press the insulation rubber of second third in the cross-linking type for EPDM being base-material, the specific insulation minimum value of the insulation rubber of second third for 5 ×
1015Ω cm, the dielectric loss tan δ of the insulation rubber of second third（95~100 DEG C）Maximum is 400 × 104.Inner sheath is using resistance
The high rubber of haloflex is fired, oxygen index (OI) >=36, external sheath layer uses resist cold fire-retardant high anti-tear haloflex rubber, its anti-tensile
Intensity >=11MPa, elongation at break >=300%, anti-tear >=7.0N/mm, oxygen index (OI) >=34, low temperature resistant reachable -40 DEG C, Ke Yiman
Constructed under the various rugged surrounding temperatures of foot demand.Also, pass through the innovative design to cable inner sheath, enhancement layer and oversheath：
Inner sheath uses semi-cure expressing technique, braiding impregnation polyester cord is completely embedded into the top layer of inner sheath, inner sheath is protected outside
Further vulcanize during set extrusion, inner sheath, enhancement layer and the oversheath of such cable are effectively combined together, formation one is whole
Body, greatly improves the pull resistance of protective coverings of cable, shock resistance, and cable is effectively ensured in tunnel, underground engineering construction etc.
The tension of high intensity, shock resistance, alternating bending etc. are frequently mobile when being worked in rugged environment, it is ensured that cable is used safely.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of shield machine shielding high-tension cable as shown in Figure 1, including cable core, described cable core by three power wire cores,
A two wire cores and root multimode fiber 12 is stranded forms；In the gap filling semiconducting rubber packing 5 of cable core, in cable
Extrude belting layer 6 outside core, lapping layer wrapped is formed by one layer of semi-conductive tape and layer of non-woven fabric band are overlapping；Squeezed outside nonwoven fabric belts
Bag high fire-retardance haloflex rubber inner sheath 7, adding for impregnation polyester cord braiding is extruded in high fire-retardance rubber inner sheath
Strong layer 8, the fracture strength ＞ 1070N of impregnation polyester cord；Finally cold-resistant fire-retardant high anti-tear chlorination is extruded in cable outermost layer to gather
Ethene rubber oversheath 9.
Wherein, described power wire core is by power line conductor 1 and three-layer co-extruded outside power line conductor by catenary suspension type continuous vulcanization
Conductor shield 2, ethylene-propylene rubber insulated layer 3 and insulation screen 4 constitute, conductor shield by EPDM be base-material friendship
Connection type semi-conductive screen rubber, which is extruded, to be formed, the Ω cm of specific insulation≤100, insulation screen by acetate ethylene copolymer and
Nitrile rubber is extruded and formed for the peelable cross-linking type semi-conductive screen rubber of base-material, the Ω cm of specific insulation≤100, insulation
Layer is pressed the insulation rubber of second third to extrude in using EPDM as the cross-linking type of base-material and formed, and dielectric loss tan δ maximums are 400
×104, specific insulation minimum value is 5 × 1015 Ω·cm。
Described wire core by ground wire core conductor 10 and be extruded in outside ground wire core conductor by base-material of EPDM without
The semi-conductive layer 11 of halogen semiconducting rubber is constituted.
The utility model is a kind of kV second third of rated voltage 6/10 insulation shield machine rubber sleeve flexible cable, model：UGEFP-6/
10 3*50+2*10+8FO (62.5/125), size is as follows：
1. main conductor： 50 mm2；
2. main conductor is shielded：Crosslinkable semiconductive power shields rubber, nominal thickness 0.7mm
3. main line insulate：10kV ethylene-propylene rubber insulated rubbers, nominal thickness 4.5mm
4. main line insulation shielding：Cross-linking strippable semi-conductive shielding rubber, nominal thickness 0.7mm
5. gnd conductor：10 mm2；
6. ground wire semiconductive material：Crosslinkable semiconductive power shields rubber, nominal thickness 4.0mm；
7. multimode fibre group：8FO(62.5/125)；
8. inner liner：1 layer of semi-conductive tape and 1 layer of non-woven fabrics are overlapping wrapped；
9. inner sheath：Fire-retardant chlorinated polyethylene sheath rubber nominal thickness 2.5mm；
10. enhancement layer：48 impregnation polyester cords are evenly distributed on inner sheath；
11. oversheath：The high anti-tear chlorinated polyethylene sheath rubber nominal thickness 5.5mm of flaming retarding cold resistant.
Performance is as follows：
1. power wire core insulating materials use 10kV ethylene-propylene rubber insulated glue, cable conductor Long-term service temperature up to 90 DEG C,
Short-circuit temperature is 250 DEG C（Duration≤5s）；
2. pressure test：Cable applies 3.5UOTest voltage continue 5min, cable insulation do not puncture.
3. local discharge test：Cable applies 1.73UOTest voltage continue, discharge capacity≤10Pc.
4. product cable bend is tested（Bending diameter 15 (D+d) ± 5%, positive contraflexure 40 times is a circulation, with laggard
Capable pressure-resistant 21kV/5min, totally 5 circulations）, cable do not puncture.
5. oversheath scraped finish is tested:Apply active force 210N, scraped finish 25 times, sheath surfaces externally and internally flawless, subsequent rushes
Hit voltage（20kV, each 10 times of positive and negative polarity）Cable portion punctures.
The utility model concrete application approach is a lot, and described above is only preferred embodiment of the present utility model, should
Point out, for those skilled in the art, on the premise of the utility model principle is not departed from, can also make
Go out some improvement, these improvement also should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of shield machine shields high-tension cable, including cable core, it is characterised in that：Described cable core is by three power wire cores, two
A root wire core and root multimode fiber is stranded forms；Semiconducting rubber packing is filled in the gap of cable core, outside cable core
Belting layer is extruded, high fire-retardance haloflex rubber inner sheath is extruded outside semi-conductive non-woven fabric band, is protected in high fire-retardance rubber
Set extrudes the enhancement layer of impregnation polyester cord braiding, finally extrudes cold-resistant fire-retardant high anti-tear chlorinated polyethylene in cable outermost layer
Alkene rubber oversheath；Described belting layer wrapped is formed by one layer of semi-conductive tape and layer of non-woven fabric band are overlapping；The impregnation gathers
The enhancement layer of ester cotton rope braiding is completely embedded into the top layer of inner sheath, and inner sheath vulcanizes in outer sheathing causes interior protect
Set, enhancement layer and oversheath are combined together, and form an entirety.
2. the shield machine shielding high-tension cable according to claim 1, it is characterised in that：Described power wire core is by power
Line conductor and pass through the three-layer co-extruded conductor shield outside power line conductor of catenary suspension type continuous vulcanization, ethylene-propylene rubber insulated layer and insulation screen
Cover layer composition.
3. the shield machine shielding high-tension cable according to claim 1, it is characterised in that：Described wire core is by wire core
Conductor and the semi-conductive layer using EPDM as base-material Halogen semiconducting rubber being extruded in outside ground wire core conductor are constituted.
4. the shield machine shielding high-tension cable according to claim 2, it is characterised in that：Described conductor shield is by three
First second third is extruded for the cross-linking type semi-conductive screen rubber of base-material and formed.
5. the shield machine shielding high-tension cable according to claim 2, it is characterised in that：Described insulation screen is by vinegar
Sour ethylene copolymer and nitrile rubber are extruded for the peelable cross-linking type semi-conductive screen rubber of base-material and formed.
6. the shield machine shielding high-tension cable according to claim 2, it is characterised in that：The insulating barrier is by with ternary second
Third forms to press the insulation rubber of second third to extrude in the cross-linking type of base-material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356589.XU CN206619435U (en) | 2016-12-12 | 2016-12-12 | A kind of shield machine shields high-tension cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356589.XU CN206619435U (en) | 2016-12-12 | 2016-12-12 | A kind of shield machine shields high-tension cable |
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| Publication Number | Publication Date |
|---|---|
| CN206619435U true CN206619435U (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621356589.XU Active CN206619435U (en) | 2016-12-12 | 2016-12-12 | A kind of shield machine shields high-tension cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878046A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of cable for shield machine |
| CN115985558A (en) * | 2023-01-30 | 2023-04-18 | 人民电缆集团有限公司 | Shield machine cable for high-voltage power transmission |
-
2016
- 2016-12-12 CN CN201621356589.XU patent/CN206619435U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878046A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of cable for shield machine |
| CN115985558A (en) * | 2023-01-30 | 2023-04-18 | 人民电缆集团有限公司 | Shield machine cable for high-voltage power transmission |
| CN115985558B (en) * | 2023-01-30 | 2023-06-30 | 人民电缆集团有限公司 | Shield machine cable for high-voltage transmission |
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