CN110828045A - Phase-change temperature-control high-voltage cable - Google Patents
Phase-change temperature-control high-voltage cable Download PDFInfo
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- CN110828045A CN110828045A CN201810890861.XA CN201810890861A CN110828045A CN 110828045 A CN110828045 A CN 110828045A CN 201810890861 A CN201810890861 A CN 201810890861A CN 110828045 A CN110828045 A CN 110828045A
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- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000003094 microcapsule Substances 0.000 claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 12
- 239000004917 carbon fiber Substances 0.000 claims abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- -1 polyethylene Polymers 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920002396 Polyurea Polymers 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 8
- 239000012782 phase change material Substances 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013021 overheating Methods 0.000 abstract description 4
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 230000001988 toxicity Effects 0.000 abstract description 2
- 231100000419 toxicity Toxicity 0.000 abstract description 2
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- Superconductors And Manufacturing Methods Therefor (AREA)
- Insulated Conductors (AREA)
Abstract
本发明提供的一种相变控温式高压电缆，包括电缆芯线和依次包覆在所述电缆芯线外的内护套、编织层和外护套，所述的电缆芯线和所述的内护套之间设有一填充层，所述的填充层为膨胀石墨‑高密度聚乙烯‑石蜡复合相变微胶囊。采用有机复合相变材料膨胀石墨‑高密度聚乙烯‑石蜡复合相变材料作为高压电缆的填充材料，有效的降低了高压电缆的暂态温升，使高压电缆避免局部过热而造成热穿击，提高了高压电缆的使用寿命；超导碳纤维丝交织构成的编织层，以及由碳纤维丝和铜纤维丝交织构成的外护套增加了散热效果；填充材料的胶囊化避免了固‑液相变材料的流失，通过包覆作用隔绝了相变材料的毒性和腐蚀性。
The present invention provides a phase-change temperature-controlled high-voltage cable, comprising a cable core wire, an inner sheath, a braided layer and an outer sheath sequentially wrapped around the cable core wire, the cable core wire and the A filling layer is arranged between the inner sheaths, and the filling layer is an expanded graphite-high-density polyethylene-paraffin composite phase-change microcapsule. The organic composite phase change material expanded graphite-high density polyethylene-paraffin composite phase change material is used as the filling material of the high-voltage cable, which effectively reduces the transient temperature rise of the high-voltage cable, so that the high-voltage cable can avoid local overheating and cause thermal breakdown. Improve the service life of high-voltage cables; the braided layer composed of superconducting carbon fiber filaments and the outer sheath composed of carbon fiber filaments and copper fiber filaments increase the heat dissipation effect; the encapsulation of the filling material avoids the solid-liquid phase change material The loss of the phase change material isolates the toxicity and corrosiveness of the phase change material through the coating.
Description
技术领域technical field
本发明涉及电力电缆领域，尤其是相变控温式高压电缆。The invention relates to the field of power cables, in particular to a phase-change temperature-controlled high-voltage cable.
背景技术Background technique
目前，随着社会经济的飞速发展，人们的生活水平在不断提高，我国居民的用电量日益增加，常常使得电力输送用的高压电缆线因满负荷或超负荷运行而发热，而长期的高温运行使绝缘下降并击穿，最后导致电缆火灾的发生，因此有必要采取相应的措施防止高压电缆过热，延长高压电缆的使用寿命。现有高压电缆采用的填充材料为玻璃纤维、聚酯纤维、棉纱和聚丙烯绳等等，主要作用是减少胶料用量，降低成本，增加电缆强度，但上述填充材料的热阻高且分布不均，影响热量传输效率，不利于电缆导体的散热和冷却。At present, with the rapid development of social economy, people's living standards are constantly improving, and the electricity consumption of Chinese residents is increasing day by day, which often causes the high-voltage cables used for power transmission to heat up due to full load or overload operation, and long-term high temperature The operation causes the insulation to drop and break down, which finally leads to the occurrence of cable fire. Therefore, it is necessary to take corresponding measures to prevent the high-voltage cable from overheating and prolong the service life of the high-voltage cable. The filling materials used in the existing high-voltage cables are glass fiber, polyester fiber, cotton yarn and polypropylene rope, etc. The main function is to reduce the amount of rubber compound, reduce the cost, and increase the strength of the cable, but the above-mentioned filling materials have high thermal resistance and uneven distribution. It affects the heat transfer efficiency and is not conducive to the heat dissipation and cooling of the cable conductors.
发明内容SUMMARY OF THE INVENTION
为解决上述问题，本发明提供了一种相变控温式高压电缆，旨在解决高压电缆过热、易老化的问题，提高了高压电缆的使用寿命和安全性。In order to solve the above problems, the present invention provides a phase-change temperature-controlled high-voltage cable, which aims to solve the problems of overheating and aging of the high-voltage cable, and improve the service life and safety of the high-voltage cable.
本发明提供的一种相变控温式高压电缆，包括电缆芯线和依次包覆在所述电缆芯线外的内护套、编织层和外护套，所述的电缆芯线和所述的内护套之间设有一填充层，所述的填充层为膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊。The present invention provides a phase-change temperature-controlled high-voltage cable, comprising a cable core wire, an inner sheath, a braided layer and an outer sheath sequentially wrapped around the cable core wire, the cable core wire and the A filling layer is arranged between the inner sheaths, and the filling layer is an expanded graphite-high-density polyethylene-paraffin composite phase-change microcapsule.
优选地，所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊质量比为：膨胀石墨:高密度聚乙烯:石蜡＝1～2:2～3:5～7。Preferably, the mass ratio of the expanded graphite-high-density polyethylene-paraffin composite phase change microcapsules is: expanded graphite: high-density polyethylene: paraffin=1-2:2-3:5-7.
优选地，所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊的壳体为聚脲树脂。Preferably, the shell of the expanded graphite-high density polyethylene-paraffin composite phase change microcapsule is polyurea resin.
优选地，所述的内护套为低烟无卤聚乙烯护套。Preferably, the inner sheath is a low-smoke halogen-free polyethylene sheath.
优选地，所述的编织层为超导碳纤维丝交织构成的编织层，具有散热的效果。Preferably, the braided layer is a braided layer formed by interlacing superconducting carbon fiber filaments, which has the effect of heat dissipation.
优选地，所述的外护套为碳纤维丝和铜纤维丝交织构成的外护套，不仅具有散热效果，还能防划。Preferably, the outer sheath is an outer sheath formed by interweaving carbon fiber filaments and copper fiber filaments, which not only has the effect of heat dissipation, but also prevents scratches.
本发明的有益效果：Beneficial effects of the present invention:
本发明提供的一种相变控温式高压电缆，采用有机复合相变材料膨胀石墨-高密度聚乙烯-石蜡复合相变材料作为高压电缆的填充材料，有效的降低了高压电缆的暂态温升，使高压电缆避免局部过热而造成热穿击，提高了高压电缆的使用寿命；超导碳纤维丝交织构成的编织层，还有碳纤维丝和铜纤维丝交织构成的外护套增加了散热效果；填充材料的胶囊化避免了固-液相变材料的流失，通过包覆作用隔绝了相变材料的毒性和腐蚀性。The invention provides a phase-change temperature-controlled high-voltage cable, which adopts the organic composite phase-change material expanded graphite-high-density polyethylene-paraffin composite phase-change material as the filling material of the high-voltage cable, which effectively reduces the transient temperature of the high-voltage cable. The high-voltage cable can avoid local overheating and cause thermal breakdown, and improve the service life of the high-voltage cable; the braided layer composed of superconducting carbon fiber filaments and the outer sheath composed of carbon fiber filaments and copper fiber filaments increase the heat dissipation effect. ; The encapsulation of the filling material avoids the loss of the solid-liquid phase change material, and isolates the toxicity and corrosiveness of the phase change material through encapsulation.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments.
图1为本发明一较佳实施例提供的相变控温式高压电缆的结构示意图。FIG. 1 is a schematic structural diagram of a phase-change temperature-controlled high-voltage cable according to a preferred embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图对本发明的优选实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.
实施例1：Example 1:
参见图1，一种相变控温式高压电缆，包括电缆芯线1和依次包覆在所述电缆芯线1外的低烟无卤聚乙烯内护套2、超导碳纤维丝交织构成的编织层3以及由碳纤维丝和铜纤维丝交织构成的外护套4，所述的电缆芯线1和所述的内护套2之间设有一填充层5，所述的填充层5为膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊。所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊质量比为：膨胀石墨:高密度聚乙烯:石蜡＝1:3:6，所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊的壳体为聚脲树脂。Referring to FIG. 1, a phase-change temperature-controlled high-voltage cable includes a
实施例2：Example 2:
参见图1，一种相变控温式高压电缆，包括电缆芯线1和依次包覆在所述电缆芯线1外的低烟无卤聚乙烯内护套2、超导碳纤维丝交织构成的编织层3以及由碳纤维丝和铜纤维丝交织构成的外护套4，所述的电缆芯线1和所述的内护套2之间设有一填充层5，所述的填充层5为膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊，所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊质量比为：膨胀石墨:高密度聚乙烯:石蜡＝2:1:7，所述的膨胀石墨-高密度聚乙烯-石蜡复合相变微胶囊的壳体为聚脲树脂。Referring to FIG. 1, a phase-change temperature-controlled high-voltage cable includes a
对实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810890861.XA CN110828045A (en) | 2018-08-07 | 2018-08-07 | Phase-change temperature-control high-voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810890861.XA CN110828045A (en) | 2018-08-07 | 2018-08-07 | Phase-change temperature-control high-voltage cable |
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| CN110828045A true CN110828045A (en) | 2020-02-21 |
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| CN201810890861.XA Withdrawn CN110828045A (en) | 2018-08-07 | 2018-08-07 | Phase-change temperature-control high-voltage cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161978A (en) * | 2020-11-16 | 2021-07-23 | 郑芬 | Underwater fastening sealing cable connection structure |
| CN113628793A (en) * | 2021-08-04 | 2021-11-09 | 浙江元通线缆制造有限公司 | Magnesium oxide insulating copper sheath heating cable |
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| CA2768447A1 (en) * | 2009-07-16 | 2011-01-20 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
| CN103745772A (en) * | 2013-12-29 | 2014-04-23 | 湖南华菱线缆股份有限公司 | Phase change self-regulating temperature shielded cable |
| CN204178800U (en) * | 2014-06-27 | 2015-02-25 | 国家电网公司 | Phase-change temperature control formula high-tension cable |
| CN206179580U (en) * | 2016-11-30 | 2017-05-17 | 福建南新电缆有限公司 | Safe early warning cable |
| CN208673764U (en) * | 2018-08-07 | 2019-03-29 | 广东天虹电缆有限公司 | A kind of phase-change temperature control formula high-tension cable |
-
2018
- 2018-08-07 CN CN201810890861.XA patent/CN110828045A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2768447A1 (en) * | 2009-07-16 | 2011-01-20 | 3M Innovative Properties Company | Insulated composite power cable and method of making and using same |
| CN103745772A (en) * | 2013-12-29 | 2014-04-23 | 湖南华菱线缆股份有限公司 | Phase change self-regulating temperature shielded cable |
| CN204178800U (en) * | 2014-06-27 | 2015-02-25 | 国家电网公司 | Phase-change temperature control formula high-tension cable |
| CN206179580U (en) * | 2016-11-30 | 2017-05-17 | 福建南新电缆有限公司 | Safe early warning cable |
| CN208673764U (en) * | 2018-08-07 | 2019-03-29 | 广东天虹电缆有限公司 | A kind of phase-change temperature control formula high-tension cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161978A (en) * | 2020-11-16 | 2021-07-23 | 郑芬 | Underwater fastening sealing cable connection structure |
| CN113628793A (en) * | 2021-08-04 | 2021-11-09 | 浙江元通线缆制造有限公司 | Magnesium oxide insulating copper sheath heating cable |
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