CN217485133U - High-voltage cold-resistant torsion-resistant flame-retardant flexible cable - Google Patents
High-voltage cold-resistant torsion-resistant flame-retardant flexible cable Download PDFInfo
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- CN217485133U CN217485133U CN202221339554.0U CN202221339554U CN217485133U CN 217485133 U CN217485133 U CN 217485133U CN 202221339554 U CN202221339554 U CN 202221339554U CN 217485133 U CN217485133 U CN 217485133U
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Abstract
The utility model discloses a high-voltage cold-resistant torsion-resistant flame-retardant flexible cable, which comprises a plurality of conductor units, a filling layer, an isolation sleeve, a first wrapping tape, a metal armor layer, an outer sheath and a wear-resistant layer; the conductor units are arranged in the isolation sleeve, and the filling layer is used for filling gaps among the conductor units; the first wrapping tape, the metal armor layer, the outer sheath and the wear-resistant layer are sequentially wrapped outside the isolation sleeve; the conductor unit comprises an optical unit, a plurality of conductors, a conductor shielding layer, an insulating shielding layer, a second wrapping tape and a metal shielding layer; the light unit and the conductor are arranged in the conductor shielding layer; insulating layer, insulation shield, second around band and metallic shield wrap up in proper order set up in the outside of conductor shield. The utility model provides a cold-resistant fire-retardant flexible cable of turning round of high pressure to 66kV high pressure on the existing market is cold-resistant turns round wind-powered electricity generation cable's production problem, and satisfies the demand of high resistant distortion and high soft comprehensive properties requirement.
Description
Technical Field
The utility model relates to a power cable technical field, concretely relates to cold-resistant fire-retardant flexible cable of turning round of high pressure.
Background
Offshore wind power is developed from the first 3-4MW era to the 6-7MW era, and then is rapidly promoted to the 9-10MW era, and the capacity of a single machine is further improved in the future. At present, the voltage in the field applied by foreign offshore wind power is increased to 66kV, and compared with 33kV, the number of loops of a fan can be reduced, so that the wiring complexity of the offshore booster station is reduced, even the number of the offshore booster stations is reduced, and the investment and operation and maintenance cost are reduced.
At present, most cable manufacturers at home and abroad produce wind energy anti-torsion cables at the voltage level of 35kV or below. The 66kV voltage class belongs to the high voltage range, and is particularly limited by a plurality of factors such as raw materials, equipment manufacturing capacity, processing conditions, application environment and the like for a rubber sleeve cable for mobile application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire-retardant flexible cable is nai turned round in the cold-resistant mistake of 66kV high pressure to solve the cold-resistant production problem who turns round wind-powered electricity generation cable of the resistant mistake of 66kV high pressure on the existing market that proposes in the above-mentioned background art, and satisfy the demand of high resistant distortion and high soft comprehensive properties requirement.
The utility model discloses a realize through following technical scheme:
the high-voltage cold-resistant torsion-resistant flame-retardant flexible cable is characterized by comprising a plurality of conductor units, a filling layer, an isolation sleeve, a first wrapping tape, a metal armor layer, an outer sheath and a wear-resistant layer; the conductor units are arranged in the isolation sleeve, and the filling layer is used for filling gaps among the conductor units; the first wrapping tape, the metal armor layer, the outer sheath and the wear-resistant layer are sequentially wrapped outside the isolation sleeve;
wherein: the conductor unit comprises an optical unit, a plurality of conductors, a conductor shielding layer, an insulating shielding layer, a second wrapping tape and a metal shielding layer; the light unit and the conductor are arranged in the conductor shielding layer; insulating layer, insulation shield, second around band and metallic shield wrap up in proper order set up in the outside of conductor shield.
Particularly, the utility model provides a high pressure is cold-resistant resists turning round fire-retardant flexible cable's use occasion is from plain area to the plateau area at an altitude of 5000 meters, to marine area, to can all use in the slightly environment such as heavily filthy or saline and alkaline land.
Further, a high-voltage cold-resistant torsion-resistant flame-retardant flexible cable: providing a light unit in each of said conductor units; 2-4 optical fibers are arranged in the optical unit.
Further, a high-voltage cold-resistant torsion-resistant flame-retardant flexible cable: the conductor adopts a high-strength high-conductivity high-temperature-resistant softening copper alloy wire. Compare ordinary copper conductor, the utility model discloses a high-strength high-temperature resistant softening copper alloy line that leads has the compliance height, and the antitorque performance is good, and the degree of buckling is good, and simultaneously under the same current-carrying capacity, it is lower to generate heat, and conductor temperature is low can prolong cable life, reduces cable and changes frequency, reduce cost.
Further, a high-voltage cold-resistant torsion-resistant flame-retardant flexible cable: the conductor shielding layer is made of a semi-conductive inner shielding material for a vulcanizable ultra-clean ultra-high voltage ethylene propylene insulating rubber cable; the insulating layer is made of ultra-clean ultra-high voltage ethylene propylene insulating rubber; the insulation shielding layer is made of a vulcanization type ultra-clean ultra-high voltage ethylene propylene insulation rubber sleeve cable non-strippable semi-conductive insulation shielding rubber material. Specifically, the insulating material is selected to be suitable for different environments and altitudes, and the breakdown field strength of the insulating material under the power frequency voltage is 25-35 kV/mm. The insulating layer material is a vulcanizable ultra-clean ultra-high voltage ethylene propylene rubber insulating rubber material which is resistant to temperature of 90 ℃ and less than 69kV, and the highest voltage resistance can reach 69 kV. The conductor shielding layer material is a 66kV ultra-clean ultra-high voltage ethylene propylene insulating rubber cable semi-conductive inner shielding material which is temperature-resistant at 90 ℃ and can be vulcanized. The insulation shielding layer material is a non-strippable semi-conductive insulation shielding rubber for a 90-DEG C temperature-resistant 66kV vulcanized ultra-clean ultra-high voltage ethylene propylene insulation rubber sleeve cable, and the insulation shielding layer material has very good compatibility with the ultra-high voltage ethylene propylene insulation material. Compared with the traditional crosslinked polyethylene insulating material, the ultrahigh-pressure ethylene propylene rubber material is adopted in the application, and the ultrahigh-pressure ethylene propylene rubber material has the advantages that: excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical property, oil filling property, normal temperature fluidity and other properties. The conductor shielding material, the insulating material and the insulating shielding material all need to meet the requirement of environmental protection RoHS of European Union, and the damage to the environment is reduced.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the second wrapping tape is a semi-conducting tape; the first wrapping tape adopts a semi-conductive buffer water-blocking tape.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the metal shielding layer is a tinned copper wire braid or a tinned copper wire sparse winding.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the filling layer is internally provided with 2-6 optical units; 2-4 optical fibers are arranged in each optical unit.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the metal armor layer adopts a high anti-torsion tinned copper wire braid layer.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the outer sheath is made of flame-retardant chlorosulfonated polyethylene sheath rubber.
Further, a high-voltage cold-resistant and torsion-resistant flame-retardant flexible cable: the high-voltage cold-resistant torsion-resistant flame-retardant flexible cable comprises 3 conductor units; the 3 conductor units are all arranged in the isolation sleeve, the filling layer is also arranged in the isolation sleeve, and the filling layer is used for filling gaps among the conductor units.
The utility model has the advantages that:
(1) the utility model provides a cold-resistant fire-retardant flexible cable of turning round of high pressure, wherein the conductor adopts the high-strength high temperature resistant softening copper alloy line of leading, compares ordinary copper conductor, and the high-strength high temperature resistant softening copper alloy line of leading has the compliance height, and the antitorque performance is good, and the degree of buckling is good, and simultaneously under the same current-carrying capacity, it is lower to generate heat, and the conductor temperature hangs down can prolong cable life, reduces the cable and changes frequency, reduce cost.
(2) Compared with the common compressed conductor, the utility model discloses a cable increases the optical unit at the conductor unit central line, and every optical unit embeds 2-4 optic fibre, cooperation temperature measuring device, can real-time detection whole root cable's state, predicts cable state and life-span in advance, and the maintenance or change of predictability reduces the destruction that potential safety hazard and accident caused. The automatic on-line monitoring of the cable system is realized, the defects and potential faults of the cable and the system are found in time, the running state of the whole cable system is controlled in real time, the manual inspection is changed into 24-hour real-time monitoring and early warning, and the safe running of the line is ensured.
(3) When the cable is installed at the altitude of 2000-5000 m, the insulation thickness is increased, the thickness increase coefficient range is 1.11-1.67, and the reduction of the insulation strength caused by the increase of the altitude is compensated; when the cable is installed below the altitude of 2000m, the thickness is not increased, and the manufacturing cost is reduced.
(4) The utility model discloses a fire-retardant flexible cable is changeed to cold-resistant turning round of high pressure embeds 2-6 optical units in the filling layer, and every optical unit embeds there is 2-4 optic fibre, cooperation temperature measuring device, can the state of real-time detection whole root cable, predicts cable state and life-span in advance, and the predictability is maintained or is changed, reduces the destruction that potential safety hazard and accident caused. The system can be compared with the temperature of an optical unit arranged in a conductor, the running state of the cable is detected in real time, the automatic online monitoring of the cable system is realized, the defects and potential faults of the cable and the system are found in time, the running state of the whole cable system is controlled in real time, the manual inspection is changed into 24-hour real-time monitoring and early warning, and the safe running of a line is ensured.
(5) The utility model discloses a metal shielding layer has adopted tinned copper wire weaving layer or tinned copper wire to dredge around in the cold-resistant fire-retardant flexible cable of turning round of high pressure, can improve electric power transmission's shielding effect, has improved the resistant performance of turning round of cable simultaneously.
(6) The utility model discloses the outer first winding covering of cable spacer adopts semiconduction buffering water-blocking tape, takes covering rate scope 25 ~ 50% around the package, has semiconduction, blocks water, the effect of buffering, guarantees that the metal armor can not embedded the line in-core that becomes soft when the conflagration takes place, the copper wire.
(7) The utility model discloses metal armor in the cable has adopted the antitorque tinned copper wire weaving layer of height, can improve the holistic resistant distortion performance of cable and the whole compliance of cable.
(8) The utility model provides an oversheath adopts a fire-retardant chlorosulfonated polyethylene sheath rubber material, makes the cable have excellent weatherability, resistant ozone, heat-resisting, acid and alkali-resistance, steam-fast, resistant low temperature performance, and service temperature can reach-40 ℃ at the lowest, and the use occasion of cable is from plain area to the plateau area at an elevation of 5000 meters, to marine area, to in the severe environment such as heavily filthy or saline and alkaline land all can use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is the structure schematic diagram of the high-voltage cold-resistant torsion-resistant flame-retardant flexible cable of the utility model.
The labels in the figure are: 1 optical element, 2 conductors, 3 conductor shielding layer, 4 insulating layers, 5 insulation shielding layers, 6 seconds are around band, 7 metallic shield, 8 conductor element, 9 filling layer, 10 spacer sleeve, 11 first around band, 12 metal armor, 13 oversheath, 14 wearing layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
Example 1
As shown in fig. 1, a high-voltage cold-resistant torsion-resistant flame-retardant flexible cable comprises 3 conductor units 8, a filling layer 9, an isolation sleeve 10, a first wrapping tape 11, a metal armor layer 12, an outer sheath 13 and a wear-resistant layer 14; the 3 conductor units 8 are all arranged in the isolation sleeve 10, the filling layer 9 is also arranged in the isolation sleeve 10, and the filling layer 9 is used for filling gaps among the conductor units 8; the first wrapping tape 11, the metal armor layer 12, the outer sheath 13 and the wear-resistant layer 14 are sequentially wrapped outside the isolation sleeve 10; the filling layer 9 is also internally provided with 3 optical units 1, and each optical unit 1 is internally provided with 2-4 optical fibers;
wherein: the conductor unit 8 comprises an optical unit 1, a plurality of conductors 2, a conductor shielding layer 3, an insulating layer 4, an insulating shielding layer 5, a second wrapping tape 6 and a metal shielding layer 7; the light unit 1 and the conductor 2 are arranged in the conductor shielding layer 3; insulating layer 4, insulation shield 5, second around band 6 and metallic shield 7 wrap up in proper order set up in the outside of conductor shield 3.
The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable in the embodiment 1 has the main structure that the conductor 2 (the built-in optical unit 1) is extruded with the conductor shielding layer 3, the insulating layer 4 and the insulating shielding layer 5, and the crosslinked cable core is wrapped with the second wrapping tape 6 (the semi-conductive tape) and then is subjected to tinned copper wire weaving or tinned copper wire sparse winding; then cabling is carried out, during cabling, the optical unit 1 is placed in the filling layer 9, the isolation sleeve 10 is extruded, the first wrapping tape 11 (the semi-conductive buffer water-blocking tape) is wrapped, then the metal armor layer 12 (the high-torsion-resistance tin-plated copper wire braided layer) is braided, and then the outer sheath 13 and the wear-resistant layer 14 are extruded and wrapped. The utility model discloses conductor in the cable adopts the high-strength high temperature resistant softened copper alloy wire, the insulating rubber material of ultra-clean superhigh pressure EP rubbers, high antitorque tinned copper wire weaving layer, fire-retardant chlorosulfonated polyethylene sheath rubber material, has improved the bending property of cable and has around the softness degree, and the cable has high resistant turning round, cold resistance. The isolation sleeve, the outer sheath and the wear-resistant layer on the cable enable the cable to have high wear resistance, high protection and other performances.
The above is that the preferred embodiment of the present invention is only used for explaining the present invention, and is not used for limiting the present invention. All obvious changes or variations led by the technical proposal of the utility model are still within the protection scope of the utility model.
Claims (10)
1. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable is characterized by comprising a plurality of conductor units (8), a filling layer (9), an isolation sleeve (10), a first wrapping tape (11), a metal armor layer (12), an outer sheath (13) and a wear-resistant layer (14); the conductor units (8) are arranged in the isolation sleeve (10), and the filling layer (9) is used for filling gaps among the conductor units (8); the first wrapping tape (11), the metal armor layer (12), the outer sheath (13) and the wear-resistant layer (14) are sequentially wrapped outside the isolation sleeve (10);
wherein: the conductor unit (8) comprises an optical unit (1), a plurality of conductors (2), a conductor shielding layer (3), an insulating layer (4), an insulating shielding layer (5), a second wrapping tape (6) and a metal shielding layer (7); the light unit (1) and the conductor (2) are arranged in the conductor shielding layer (3); insulating layer (4), insulation shield (5), second around band (6) and metallic shield (7) wrap up in proper order set up in the outside of conductor shield (3).
2. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein one optical unit (1) is provided in each conductor unit (8); the optical unit (1) is internally provided with 2-4 optical fibers.
3. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein the conductor (2) is made of high-strength high-conductivity high-temperature-resistant softened copper alloy wire.
4. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable according to claim 1, wherein the conductor shielding layer (3) is made of a semi-conductive inner shielding material for a vulcanizable ultra-clean ultra-high voltage ethylene propylene insulating rubber cable; the insulating layer (4) is made of ultra-clean ultra-high voltage ethylene propylene insulating rubber; the insulation shielding layer (5) is made of a vulcanization type ultra-clean ultra-high voltage ethylene propylene insulation rubber sleeve cable non-strippable semi-conductive insulation shielding rubber material.
5. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein the second wrapping tape (6) is a semiconductive tape; the first wrapping tape (11) adopts a semi-conductive buffer water-blocking tape.
6. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable according to claim 1, wherein the metal shielding layer (7) is a tinned copper wire braid or a tinned copper wire sparse winding.
7. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein 2-6 optical units (1) are further embedded in the filling layer (9); 2-4 optical fibers are arranged in each optical unit (1).
8. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable according to claim 1, wherein the metal armor layer (12) is a high-torsion-resistant tinned copper wire braid.
9. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein the outer sheath (13) is made of flame-retardant chlorosulfonated polyethylene sheath rubber.
10. The high-voltage cold-resistant torsion-resistant flame-retardant flexible cable as claimed in claim 1, wherein the high-voltage cold-resistant torsion-resistant flame-retardant flexible cable comprises 3 conductor units (8); the 3 conductor units (8) are arranged in the isolation sleeve (10), the filling layer (9) is also arranged in the isolation sleeve (10), and the filling layer (9) is used for filling gaps among the conductor units (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221339554.0U CN217485133U (en) | 2022-05-31 | 2022-05-31 | High-voltage cold-resistant torsion-resistant flame-retardant flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221339554.0U CN217485133U (en) | 2022-05-31 | 2022-05-31 | High-voltage cold-resistant torsion-resistant flame-retardant flexible cable |
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| Publication Number | Publication Date |
|---|---|
| CN217485133U true CN217485133U (en) | 2022-09-23 |
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|---|---|---|---|
| CN202221339554.0U Active CN217485133U (en) | 2022-05-31 | 2022-05-31 | High-voltage cold-resistant torsion-resistant flame-retardant flexible cable |
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| CN (1) | CN217485133U (en) |
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- 2022-05-31 CN CN202221339554.0U patent/CN217485133U/en active Active
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