CN206379213U - A kind of full power-frequency electromagnetic fields that block water - Google Patents
A kind of full power-frequency electromagnetic fields that block water Download PDFInfo
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- CN206379213U CN206379213U CN201720105600.3U CN201720105600U CN206379213U CN 206379213 U CN206379213 U CN 206379213U CN 201720105600 U CN201720105600 U CN 201720105600U CN 206379213 U CN206379213 U CN 206379213U
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- water
- blocking
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- conductive
- conductor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 230000005672 electromagnetic field Effects 0.000 title abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 59
- 230000003287 optical effect Effects 0.000 claims abstract description 57
- 239000004020 conductor Substances 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
- 239000010949 copper Substances 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 38
- 239000010426 asphalt Substances 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000010439 graphite Substances 0.000 abstract description 5
- 229910002804 graphite Inorganic materials 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 abstract 2
- 230000004888 barrier function Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 235000006650 Syzygium cordatum Nutrition 0.000 description 3
- 240000005572 Syzygium cordatum Species 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of full power-frequency electromagnetic fields that block water, water-blocking conductor is located at center, semiconductive band is surrounded with outside water-blocking conductor successively, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water-blocking band, it is uniform outside semi-conductive buffer water-blocking band to dredge around many copper wires and optical cable, 1 layer of copper strips of colligation outside copper wire and optical cable, wrapped 1 layer of two-sided semiconductor waterstop outside copper strips, lead sheath is extruded outside two-sided semiconductor waterstop, lead sheath surface coats pitch, the outside of pitch extrudes oversheath and external electrode simultaneously, the utility model realizes conductor, full block-water performance between copper wire and oversheath；Cable inner homogeneous arranges the low system of laying of the outer cluster temperature measurement accuracy of 4 optical cable replacement cables, realizes the reliability service for ensureing high voltage power cable by accurate thermometric to the effective on-line monitoring of high-tension cable；In addition, external electrode conventional graphite coating method compared with oversheath is extruded simultaneously is more environmentally-friendly.
Description
Technical Field
The utility model relates to a be applied to power cable among high pressure, the superhigh pressure cable transmission of electricity field, specifically speaking is exactly a high-pressure crosslinked polyethylene insulation power cable blocks water entirely.
Background
At present, 66 kV-500 kV high-voltage and ultrahigh-voltage power cables are widely applied in China and gradually realize nationwide production, high-voltage cables with reliable quality are particularly important for ensuring safe operation of high-voltage transmission, the existing high-voltage power cable conductors are only tightly twisted together without water blocking effect, the longitudinal water blocking outside an insulating wire core is a wrapped semi-conductive buffer water blocking tape, the radial water blocking is in a welding or extrusion aluminum sheath form, the production process is not well controlled, and the water blocking effect is not good; the existing welded or extruded aluminum sheath structure often causes the aluminum sheath to be gradually corroded into water in environments such as corrosive soil and the like, so that an insulating layer generates water trees, even the borne short-circuit current cannot meet the operation requirement, the cable is heated in long-term operation, and finally the insulating layer breaks through the scrapped major accident of the cable.
In addition, in order to ensure safe and reliable operation of the high-voltage power cable, effective on-line monitoring of the high-voltage power cable needs to be realized, a reliable temperature sensing and signal transmission optical cable structure needs to be placed in an internal structure of the cable, and intelligentization of accurate temperature measurement and reliable control is realized.
Disclosure of Invention
The utility model discloses to not enough among the prior art, the purpose provides one kind and has structure, environmental protection, the reliable high pressure crosslinked polyethylene insulation power cable of operation that blocks water entirely.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model provides a high voltage crosslinking polyethylene insulation power cable blocks water entirely which characterized in that: the cable sequentially comprises a water-blocking conductor, a semi-conductive wrapping tape, a conductor shielding layer, an insulating shielding layer, a semi-conductive buffering water-blocking tape, a copper wire, an optical cable, a copper strip, a double-sided semi-conductive water-blocking tape, a lead sheath, asphalt, an outer protective layer and an outer electrode from the center to the outside.
The waterproof conductor is sequentially wrapped with a semi-conductive wrapping tape, a conductor shielding layer, an insulating shielding layer and a semi-conductive buffering waterproof tape, the semi-conductive buffering waterproof tape is uniformly wrapped with a plurality of copper wires and 4 optical cables, 1 copper tape is bound outside the copper wires and the optical cables, the 1 double-sided semi-conductive waterproof tape is wrapped outside the copper tapes, a lead sheath is extruded outside the double-sided semi-conductive waterproof tape, asphalt is coated on the surface of the lead sheath, and an outer sheath and an outer electrode are extruded outside the asphalt.
The water-blocking conductor is formed by compressing copper monofilaments and longitudinally-wrapped water-blocking tapes, a double-sided water-blocking tape is arranged between each layer of copper monofilaments, the water-blocking conductor is divided into a plurality of strand blocks with sector structures along the circumferential direction, and the double-sided water-blocking tapes are arranged between the strand blocks;
the copper wires and the optical cables are located on the same layer, wherein 1 optical cable is arranged on the circumference of the semi-conductive buffer water-blocking tape at intervals of 90 degrees, the outer diameter of each optical cable is smaller than that of each copper wire, water-blocking powder is coated on the surfaces of the copper wires and the optical cables, 1 optical cable is composed of a stainless steel seamless steel tube containing 2 optical fibers with different colors and filling ointment, and the colors of 8 core optical fibers contained in 4 optical cables are different.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
1. the conductor is a water-blocking conductor, double-sided water-blocking tapes are arranged among each layer of copper single wires of the water-blocking conductor and among the strand blocks, and the water-blocking conductor is wrapped with a semi-conductive wrapping tape, so that the water blocking of the conductor of the insulating wire core is really realized;
2. the semi-conductive buffer water-blocking tape is wrapped outside the insulated wire core, and the copper wire and the optical cable are loosely wound on the semi-conductive buffer water-blocking tape, so that the phenomenon of insulation breakdown caused by unsmooth insulating layer and insulated shielding interface due to indentation of the copper wire and the optical cable on the surface of the insulated wire core is avoided, the semi-conductive buffer water-blocking tape can protect the copper wire and the optical cable under uniform tension when the copper wire and the optical cable are loosely wound, a layer of water-blocking powder is coated outside the copper wire and the optical cable, and the water-blocking effect of the layer is completely realized by wrapping the copper wire and the;
3. the utility model discloses well copper wire and optical cable are dredged around well optical cable external diameter and are less than the copper wire external diameter, and the copper wire has played the supporting role and has undertaken the pressure that each link produced in the production process, has avoided the optical cable to press, and even adjustable tension makes the pulling force that the optical cable bore reduce greatly, avoids the optical cable extrusion disconnected or breaks, has improved high tension cable's life greatly.
4. The 4 optical cables are uniformly and symmetrically arranged close to the insulated wire core, so that accurate temperature measurement in different directions of the insulated wire core and transmission of optical signals can be realized, the operation of the cable is effectively monitored on line, intelligent management and control are convenient to realize, and the reliable operation of the high-voltage power cable is guaranteed;
5. the outer electrode outside the outer sheath is an extruded thermoplastic semi-conductive shielding sheath, so that the continuity, high wear resistance and environmental protection of the semi-conductive layer are realized.
The utility model realizes the full water-blocking performance among the conductor, the copper wire and the outer sheath; 4 optical cables are uniformly distributed in the cable to replace a laying mode with low temperature measurement precision in an external binding mode of the cable, so that the high-voltage cable is effectively monitored on line, and the reliable operation of the high-voltage power cable is guaranteed through accurate temperature measurement; in addition, the outer electrode and the outer sheath are extruded simultaneously, so that the graphite coating mode is more environment-friendly compared with the traditional graphite coating mode.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, effects and embodiments of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in figure 1, the power cable sequentially comprises a water-blocking conductor 1, a semi-conductive wrapping tape 2, a conductor shielding layer 3, an insulating layer 4, an insulating shielding layer 5, a semi-conductive buffer water-blocking tape 6, a copper wire 7, an optical cable 8, a copper tape 9, a double-sided semi-conductive water-blocking tape 10, a lead sheath 11, asphalt 12, an outer protective layer 13 and an outer electrode 14 from the center to the outside,
the water-blocking conductor 1 is located in the center, the water-blocking conductor 1 is formed by compressing copper monofilaments and longitudinally-wrapped water-blocking tapes, a double-sided water-blocking tape is arranged between each layer of copper monofilaments, the water-blocking conductor 1 is generally divided into 4-7 strand blocks with sector structures along the circumferential direction, 5 strand blocks are arranged in the embodiment, and the double-sided water-blocking tapes are arranged between the strand blocks;
the semi-conductive wrapping tape 2 is wrapped outside the water-blocking conductor 1, and the semi-conductive wrapping tape 2 is formed by wrapping 1 layer of semi-conductive water-blocking wrapping tape firstly and then wrapping 1 layer of semi-conductive nylon tape or semi-conductive super-poly nylon tape;
the water-blocking conductor 1, the semi-conductive wrapping tape 2, the conductor shielding layer 3, the insulating layer 4 and the insulating shielding layer 5 form an insulating wire core together;
a semi-conductive buffer water-blocking tape 6 with the thickness of 2.0mm is wrapped outside the insulated wire core;
uniformly winding a plurality of copper wires 7 with the same outer diameter and 4 optical cables 8 with the same outer diameter outside the semi-conductive buffer water-blocking tape 6, wherein the copper wires 7 and the optical cables 8 are positioned on the same layer, 1 optical cable 8 is arranged on the circumference of the semi-conductive buffer water-blocking tape 6 at intervals of 90 degrees, the outer diameter of each optical cable 8 is smaller than the outer diameter of each copper wire 7, water-blocking powder is coated on the surfaces of the copper wires 7 and the optical cables 8, the 1 optical cable is composed of two optical fibers with different colors and filling ointment contained in a stainless steel seamless steel pipe, and the colors of the 8 core optical fibers contained in the 4 optical cables are different;
binding a copper strip 9 with the thickness of 1 layer and 0.12mm outside the copper wire 7 and the optical cable 8;
1 layer of double-sided semi-conductive water-blocking tape 10 with the thickness of 0.6mm is wrapped outside the copper strip 9;
extruding a lead sheath 11 outside the double-sided semi-conductive water-blocking tape 10;
coating anti-corrosion asphalt 12 on the surface of the lead sheath 11;
the outer sheath 13 and the outer electrode 14 are extruded simultaneously outside the asphalt 12.
In the scheme, the conductor is the water-blocking conductor 1, double-sided water-blocking tapes are arranged among each layer of copper single wires and among the strand blocks of the water-blocking conductor 1, and the semi-conductive wrapping tape 2 is wrapped outside the water-blocking conductor 1, so that the water-blocking of the conductor of the insulated wire core is really realized, the conductor oxidation caused by the water entering from the conductor and the formation of water trees in the insulating layer are avoided, the service life of the high-voltage power cable is prolonged, and the insulation breakdown phenomenon caused by the formation of the insulating trees is avoided;
in the scheme, the semi-conductive buffer water-blocking tape 6 with the thickness of 2.0mm is wrapped outside the insulated wire core, and the copper wire 7 and the optical cable 8 are loosely wound on the semi-conductive buffer water-blocking tape 6, so that firstly, the phenomenon of insulation breakdown caused by unsmooth insulating layer and insulation shielding interface due to indentation of the copper wire 7 and the optical cable 8 on the surface of the insulated wire core is avoided; secondly, the semi-conductive buffer water-blocking tape 6 can protect the copper wire 7 and the optical cable 8 under uniform tension when the copper wire 7 and the optical cable 8 are sparsely wound, a layer of water-blocking powder is coated outside the copper wire 7 and the optical cable 8, and the lead sheath 11 is wrapped outside the copper wire 7 and the optical cable 8 to completely realize the water-blocking effect of the layer, so that the possibility that water enters the outside of an insulated wire core is avoided, and the insulation breakdown phenomenon caused by water trees formed by the fact that insulation shielding enters an insulating layer is avoided;
in the above scheme, the well-known optical cable can bear very small pressure, the outer diameter of the optical cable 8 in the loose winding of the copper wire 7 and the optical cable 8 in the utility model is smaller than the outer diameter of the copper wire 7, the copper wire 7 plays a supporting role to bear the pressure generated in each link in the production process, the optical cable 8 is prevented from being pressed, and the uniform adjustable tension greatly reduces the tensile force borne by the optical cable 8, thereby realizing the reliable loose winding of the optical cable 8, preventing the optical cable 8 from being extruded or pulled apart, and greatly improving the service life of the high-voltage cable;
in the scheme, the 4 optical cables 8 are uniformly and symmetrically arranged close to the insulated wire core, so that accurate temperature measurement in different directions of the insulated wire core and transmission of optical signals can be realized, the operation of the cable is effectively monitored on line, intelligent management and control are convenient to realize, and the reliable operation of the high-voltage power cable is guaranteed;
in the scheme, the outer electrode 14 outside the outer sheath 13 is the extruded thermoplastic semi-conductive shielding sheath, so that the continuity and high wear resistance of the semi-conductive layer are realized, and compared with the structure that most of the outer electrodes of the high-voltage power cable are coated with graphite at present, the environment pollution and the dust damage to construction personnel caused by the fact that the coated graphite is easy to fall off are avoided, and the requirement of environmental protection is met.
Claims (4)
1. The utility model provides a high voltage crosslinking polyethylene insulation power cable blocks water entirely which characterized in that: the cable sequentially comprises a water-blocking conductor, a semi-conductive wrapping tape, a conductor shielding layer, an insulating shielding layer, a semi-conductive buffering water-blocking tape, a copper wire, an optical cable, a copper strip, a double-sided semi-conductive water-blocking tape, a lead sheath, asphalt, an outer protective layer and an outer electrode from the center to the outside.
2. The fully water-blocking high-voltage crosslinked polyethylene insulated power cable according to claim 1, characterized in that: the waterproof conductor is sequentially wrapped with a semi-conductive wrapping tape, a conductor shielding layer, an insulating shielding layer and a semi-conductive buffering waterproof tape, the semi-conductive buffering waterproof tape is uniformly wrapped with a plurality of copper wires and an optical cable, 1 copper strip is bound outside the copper wires and the optical cable, 1 double-sided semi-conductive waterproof tape is wrapped outside the copper strips, a lead sheath is extruded outside the double-sided semi-conductive waterproof tape, asphalt is coated on the surface of the lead sheath, and an outer sheath and an outer electrode are extruded outside the asphalt.
3. A fully water-blocking high-voltage cross-linked polyethylene insulated power cable according to claim 1 or 2, characterized in that: the water-blocking conductor is formed by tightly pressing copper monofilaments and longitudinally-wrapped water-blocking tapes, a double-sided water-blocking tape is arranged between each layer of copper monofilaments, the water-blocking conductor is divided into a plurality of strand blocks of a fan-shaped structure along the circumferential direction, and the double-sided water-blocking tape is arranged between each strand block and each strand block in a spaced mode.
4. A fully water-blocking high-voltage cross-linked polyethylene insulated power cable according to claim 1 or 2, characterized in that: the copper wire and the optical cable are located on the same layer, wherein 1 optical cable is arranged on the circumference of the semi-conductive buffer water-blocking tape at intervals of 90 degrees, the outer diameter of the optical cable is smaller than that of the copper wire, and water-blocking powder is coated on the surfaces of the copper wire and the optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720105600.3U CN206379213U (en) | 2017-02-03 | 2017-02-03 | A kind of full power-frequency electromagnetic fields that block water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720105600.3U CN206379213U (en) | 2017-02-03 | 2017-02-03 | A kind of full power-frequency electromagnetic fields that block water |
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| Publication Number | Publication Date |
|---|---|
| CN206379213U true CN206379213U (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720105600.3U Active CN206379213U (en) | 2017-02-03 | 2017-02-03 | A kind of full power-frequency electromagnetic fields that block water |
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| Country | Link |
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| CN (1) | CN206379213U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945940A (en) * | 2017-12-28 | 2018-04-20 | 无锡江南电缆有限公司 | Cross-linking polytene insulation welded corrugated aluminium sheath pe sheath flame-proof power cable |
| CN108091452A (en) * | 2017-12-11 | 2018-05-29 | 杭州电缆股份有限公司 | High voltage power cable extrudes lead sheath and non metallic sheath continuous producing method |
| CN109545469A (en) * | 2018-11-09 | 2019-03-29 | 杭州电缆股份有限公司 | A kind of water-resistant power cable and its technique manufacturing method |
| CN109786022A (en) * | 2019-03-25 | 2019-05-21 | 特变电工山东鲁能泰山电缆有限公司 | A kind of 220kV-750kV high drop blocks water environmentally friendly crosslinked cable entirely |
| CN110010282A (en) * | 2019-05-23 | 2019-07-12 | 中天科技海缆有限公司 | A kind of cable |
| CN110010292A (en) * | 2019-05-13 | 2019-07-12 | 远东电缆有限公司 | Rail traffic intelligent monitoring looped network cable |
| CN110853826A (en) * | 2018-08-21 | 2020-02-28 | 江苏宝安电缆有限公司 | Impact-resistant high-voltage cable |
| CN114783671A (en) * | 2022-05-23 | 2022-07-22 | 浙江晨光电缆股份有限公司 | Ultrahigh-voltage metal-sheathed optical fiber distributed temperature measuring cable and manufacturing method thereof |
-
2017
- 2017-02-03 CN CN201720105600.3U patent/CN206379213U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091452A (en) * | 2017-12-11 | 2018-05-29 | 杭州电缆股份有限公司 | High voltage power cable extrudes lead sheath and non metallic sheath continuous producing method |
| CN107945940A (en) * | 2017-12-28 | 2018-04-20 | 无锡江南电缆有限公司 | Cross-linking polytene insulation welded corrugated aluminium sheath pe sheath flame-proof power cable |
| CN110853826A (en) * | 2018-08-21 | 2020-02-28 | 江苏宝安电缆有限公司 | Impact-resistant high-voltage cable |
| CN109545469A (en) * | 2018-11-09 | 2019-03-29 | 杭州电缆股份有限公司 | A kind of water-resistant power cable and its technique manufacturing method |
| CN109786022A (en) * | 2019-03-25 | 2019-05-21 | 特变电工山东鲁能泰山电缆有限公司 | A kind of 220kV-750kV high drop blocks water environmentally friendly crosslinked cable entirely |
| CN110010292A (en) * | 2019-05-13 | 2019-07-12 | 远东电缆有限公司 | Rail traffic intelligent monitoring looped network cable |
| CN110010282A (en) * | 2019-05-23 | 2019-07-12 | 中天科技海缆有限公司 | A kind of cable |
| CN110010282B (en) * | 2019-05-23 | 2024-08-20 | 中天科技海缆股份有限公司 | Cable with improved cable tension |
| CN114783671A (en) * | 2022-05-23 | 2022-07-22 | 浙江晨光电缆股份有限公司 | Ultrahigh-voltage metal-sheathed optical fiber distributed temperature measuring cable and manufacturing method thereof |
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