WO2020155599A1 - 一种补偿导线 - Google Patents

一种补偿导线 Download PDF

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Publication number
WO2020155599A1
WO2020155599A1 PCT/CN2019/099545 CN2019099545W WO2020155599A1 WO 2020155599 A1 WO2020155599 A1 WO 2020155599A1 CN 2019099545 W CN2019099545 W CN 2019099545W WO 2020155599 A1 WO2020155599 A1 WO 2020155599A1
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layer
conductor
core
compensation wire
wrapping
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PCT/CN2019/099545
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English (en)
French (fr)
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闵宏兵
万宝军
杨东升
朱寿桃
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扬州中大电缆有限公司
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Publication of WO2020155599A1 publication Critical patent/WO2020155599A1/zh

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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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • 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
    • 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
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

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  • the invention relates to a wire, in particular to a high temperature resistant induction compensation wire for a petroleum refining and chemical measurement and control system.
  • the present invention provides a compensation wire with excellent high temperature resistance.
  • a compensation wire including a core component
  • the core component is also sequentially wrapped with a first wrapping layer, a braided layer, a second wrapping layer, a shielding layer and a resistance Flame protection layer
  • a high temperature resistant filling layer is provided between the core assembly and the first wrapping layer
  • the core assembly is encapsulated with positive and negative cores
  • both the positive and negative cores include conductors and are arranged outside the conductors in sequence
  • the protective layer and insulation layer of the ring is:
  • the conductor is a nickel-chromium alloy stranded conductor or a scandium copper alloy stranded conductor.
  • the protective layer is a polytetrafluoroethylene protective layer.
  • the insulating layer is a high-temperature ceramic silicon rubber insulating layer.
  • the first wrapping layer is an ethylene-tetrafluoroethylene copolymer film transverse wrapping layer.
  • the braided layer is a braided layer of alkali-free glass fiber filaments.
  • the second wrapping layer is an ethylene-tetrafluoroethylene copolymer film longitudinal wrapping layer.
  • the shielding layer is a tinned thin copper wire braided shielding layer.
  • the high temperature resistant filling layer is a mineral magnesium oxide filling layer.
  • the flame-retardant protective layer is intrinsically safe polyvinyl chloride flame-retardant protective layer.
  • the beneficial effects of the present invention are: after adopting the above structure, the tinned thin copper wire braided shielding layer improves the anti-interference and electromagnetic radiation of the cable, and at the same time makes the wire have high induction sensitivity performance; the outer layer of the wire adopts mineral magnesium oxide filling layer and the The safety type PVC flame-retardant protective layer makes the wire of the present application have excellent high temperature resistance and corrosion resistance, and improves the safety of the wire during use; the reasonable arrangement of each coating layer outside the conductor and the correspondence of each coating layer The role of the effective extension of the service life of the wire.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Embodiment 1 is a compensation wire, including a core component, and the core component is also sequentially wrapped with a first wrapping layer 4, a braided layer 5, a second wrapping layer 6, a shielding layer 7 and a resistance Flame protection layer 9, a high temperature resistant filling layer 5 is provided between the core assembly and the first cladding layer 4, the core assembly is coated with a positive electrode core 100 and a negative electrode core 200, and both the positive electrode core 100 and the negative electrode core 200 include The conductor 1 and the protective layer 2 and the insulating layer 3 sequentially arranged on the outer ring of the conductor 1, the positive core and the negative core are arranged to facilitate the connection between the wire and the electrical equipment.
  • the conductor 1 of the positive core 100 and the negative core 200 is a nickel-chromium alloy stranded conductor or a scandium-copper alloy stranded conductor.
  • the nickel-chromium alloy stranded conductor or the scandium-copper alloy stranded conductor has a strong and highly sensitive performance.
  • chromium alloy has relatively high electrical resistivity, good surface oxidation resistance, and its strength is better than iron-chromium-aluminum wire under high temperature environment, and it is not prone to deformation when running at high temperature; nickel-chromium wire has good plasticity, processability and weldability Very good, easy to process, easy to repair, not easy to change the structure; in addition, nickel-chromium wire has high emissivity, good corrosion resistance, and long service life.
  • the scandium-copper alloy has a certain compensation effect when measuring the temperature value.
  • the protective layer 2 is a polytetrafluoroethylene protective layer.
  • the polytetrafluoroethylene material is a polymer compound formed by the polymerization of tetrafluoroethylene. It has excellent chemical stability, corrosion resistance, sealing, high lubrication, non-sticking, and electrical Insulation and good aging resistance.
  • Insulation layer 3 is a high-temperature ceramic silicon rubber insulation layer.
  • High-temperature ceramic silicon rubber is a new type of polymer composite material. After vulcanization, it has the high temperature resistance, aging resistance, and excellent electrical properties of ordinary silicon rubber wires and cables at room temperature. Performance and other characteristics; it has the characteristics of high temperature resistance, flame retardant, halogen-free, low smoke, no corrosive and toxic substances and gases are generated during combustion, and will not cause secondary harm to the victims; a hard shell formed after being burned The body can withstand a certain amount of water spray and a certain intensity of vibration, which can ensure that the line is not broken or short-circuited, and the line is guaranteed to be unimpeded in the high temperature environment, which plays a solid role.
  • the first wrapping layer 4 is a transverse wrapping layer of ethylene-tetrafluoroethylene copolymer film.
  • the ethylene-tetrafluoroethylene copolymer, or ETFE is the strongest fluoroplastic. It maintains the good heat resistance of PTFE , While chemical resistance and electrical insulation properties, radiation resistance and mechanical properties have been greatly improved, the tensile strength can reach 50MPa, which ensures the tightness of the wrapping layer.
  • the braided layer 5 is a braided layer of alkali-free glass fiber filaments, and the alkali-free glass fiber is an aluminoborosilicate component. Its chemical stability and electrical insulation strength are good, which can support the internal structure of the cable and enhance the overall tensile strength of the cable.
  • the second wrapping layer 6 is a longitudinal wrapping layer of an ethylene-tetrafluoroethylene copolymer film, which mainly functions to isolate the alkali-free glass fiber yarn woven layer and the shielding layer, and improve the separability of the two woven layers.
  • the shielding layer 7 is a tinned fine copper wire braided shielding layer, which improves the anti-interference and electromagnetic radiation of the cable, and also enhances the overall tensile strength of the cable.
  • the high temperature resistant filling layer 8 is a mineral magnesium oxide filling layer, which has the characteristics of high temperature resistance, fire resistance, explosion protection, water resistance, radiation resistance, strong corrosion resistance, and high mechanical strength. It has good grounding performance, small size and long life Long, large current carrying capacity, strong overload capacity and other advantages.
  • the flame-retardant protective layer 9 is an intrinsically safe PVC flame-retardant protective layer. It has the characteristics of high flame retardant performance, low relative density, chemical resistance, good water resistance, good mechanical strength, antistatic performance, etc. The explosion-proof capability of the cable.

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  • Insulated Conductors (AREA)
  • Organic Insulating Materials (AREA)

Abstract

一种补偿导线，包括线芯组件，线芯组件外还依次包裹有第一绕包层(4)、编织层(5)、第二绕包层(6)、屏蔽层(7)和阻燃防护层(9)，线芯组件与第一绕包层(4)间设有耐高温填充层(8)，线芯组件包括正极线芯(100)和负极线芯(200)，正极线芯(100)和负极线芯(200)均包括导体(1)和依次设置在导体外圈的保护层(2)、绝缘层(3)。采用上述结构后，镀锡细铜丝编织屏蔽层(7)提高电缆抗干扰和电磁辐射的同时，使得导线具有高感应灵敏度性能；导线外层采用矿物氧化镁填充层和本安型聚氯乙烯阻燃型防护层(9)，使得导线具有优异的耐高温和耐腐蚀性能，有效延长导线的使用寿命。

Description

一种补偿导线 技术领域
本发明涉及一种导线，尤其是涉及一种石油炼化测控系统用耐高温感应补偿导线。
背景技术
随着我国经济快速发展，特种行业对耐高温感应电缆的需求已显高速增长阶断，耐热和耐高温电缆每年以20％的速度增长，耐高温感应电缆作为特种电缆的重要组成部分，具有较强的生命力，供不应求。一般的电线电缆是以塑料和橡胶为绝缘护套，这些材料都是常规工程材料，具有丰富的来源，能够满足大规模生产，而且成本相对较低。但对于一些特殊行业如石油化工、钢铁、航空航天、造船、军工、制药、食品、塑料机械、锅炉等与热与高温有关的行业，普通的电线电缆满足不了温度要求，且在使用过程中寿命短、安全性低，因此需要一种使用寿命长、安全性高且感应灵敏的电线电缆，保证其电力和信号的安全运行。
发明内容
为了克服上述目的，本发明提供了一种具有优异的耐高温性能补偿导线。
本发明解决其技术问题所采用的技术方案是：一种补偿导线，包括线芯组件，线芯组件外还依次包裹有第一绕包层、编织层、第二绕包层、屏蔽层和阻燃防护层，线芯组件与第一绕包层间设有耐高温填充层，线芯组件包胶正极线芯和负极线芯，正极线芯和负极线芯均包括导体和依次设置在导体外圈的保护层、绝缘层。
在本发明的一个较佳实施例中，导体为镍铬合金绞合导体或钪铜合金绞合导体。
在本发明的一个较佳实施例中，保护层为聚四氟乙烯保护层。
在本发明的一个较佳实施例中，绝缘层为高温陶瓷化硅橡胶绝缘层。
在本发明的一个较佳实施例中，第一绕包层为乙烯-四氟乙烯共聚物膜横向绕包层。
在本发明的一个较佳实施例中，编织层为无碱玻璃纤维丝编织层。
在本发明的一个较佳实施例中，第二绕包层为乙烯-四氟乙烯共聚物膜纵向绕包层。
在本发明的一个较佳实施例中，屏蔽层为镀锡细铜丝编织屏蔽层。
在本发明的一个较佳实施例中，耐高温填充层为矿物氧化镁填充层。
在本发明的一个较佳实施例中，阻燃防护层为本安型聚氯乙烯阻燃型防护层。
本发明的有益效果是：采用上述结构后，镀锡细铜丝编织屏蔽层，提高电缆抗干扰和电磁辐射的同时，使得导线具有高感应灵敏度性能；导线外层采用矿物氧化镁填充层和本安型聚氯乙烯阻燃型防护层，使得本申请的导线具有优异的耐高温和耐腐蚀性能，提高本导线在使用过程中的安全性；导体外各个包层的合理安排及各个包层对应的作用，有效延长导线的使用寿命。
附图说明
图1是本发明结构示意图。
具体实施方式
下面结合附图对本发明的较佳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。
实施例1，如图1所示一种补偿导线，包括线芯组件，线芯组件外还依次包裹有第一绕包层4、编织层5、第二绕包层6、屏蔽层7和阻燃防护层9，线芯 组件与第一绕包层4间设有耐高温填充层5，线芯组件包胶正极线芯100和负极线芯200，正极线芯100和负极线芯200均包括导体1和依次设置在导体1外圈的保护层2、绝缘层3，正极线芯和负极线芯的设置便于导线与电器设备实现连接。
正极线芯100和负极线芯200的导体1为镍铬合金绞合导体或钪铜合金绞合导体，镍铬合金绞合导体或钪铜合金绞合导体具有较强的高感应灵敏性能，镍铬合金的优点是电阻率比较高、表面抗氧化性好，在高温环境下强度保持优于铁铬铝丝，高温运行不容易出现变形；镍铬丝的塑性好、工艺加工性能和可焊性很好，易加工、易修复、结构不容易改变；另外，镍铬丝的辐射率高、耐腐蚀性能好，使用寿命也很长。而钪铜合金在测量温度值时，具有一定的补偿作用。
保护层2为聚四氟乙烯保护层，聚四氟乙烯材料是由四氟乙烯经聚合而成的高分子化合物，具有优良的化学稳定性、耐腐蚀性、密封性、高润滑不粘性、电绝缘性和良好的抗老化耐力。
绝缘层3为高温陶瓷化硅橡胶绝缘层，高温陶瓷化硅橡胶是一种新型的高分子复合材料，经过硫化后在常温下具备了普通硅橡胶电线电缆的耐高温、抗老化、优良的电性能等特性；具有耐高温、阻燃、无卤、低烟的特点，燃烧时无腐蚀性和毒性物质和气体产生，不会对受灾人造成二次危害；被烧后结成的坚硬的壳体，能够承受一定的水喷淋和一定强度的震动，能保证线路不断裂，不短路，保障了在高温环境情况下线路畅通，起到坚固的作用。
实施例2：第一绕包层4为乙烯-四氟乙烯共聚物膜横向绕包层，乙烯-四氟乙烯共聚物即ETFE是最强韧的氟塑料，它在保持了PTFE良好的耐热、耐化学性能和电绝缘性能的同时，耐辐射和机械性能有很大程度的改善，拉伸强度可达到50MPa，保证了绕包层的紧密性。
编织层5为无碱玻璃纤维丝编织层，无碱玻璃纤维是一种铝硼硅酸盐成分。它的化学稳定性和电绝缘性能强度好，起到了支撑电缆内部结构增强电缆整体抗拉强度。
第二绕包层6为乙烯-四氟乙烯共聚物膜纵向绕包层，主要起到隔离无碱玻璃纤维丝编织层和屏蔽层，提升两种编织层的可分离性。
屏蔽层7为镀锡细铜丝编织屏蔽层，提高电缆抗干扰和电磁辐射的同时，也增强了电缆整体的抗拉强度。
实施例3：耐高温填充层8为矿物氧化镁填充层，具有耐高温、防火、防爆、防水、耐辐射、耐腐蚀性强、机械强度高的特点，具有良好的接地性能、体积小、寿命长、载流量大、过载能力强等优点。
阻燃防护层9为本安型聚氯乙烯阻燃型防护层，具有高阻燃性能、相对密度小、耐化学药品性、耐水性好、良好的机械强度、抗静电性能等特点，提升了电缆的防爆能力。
需要强调的是：以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种补偿导线，其特征在于：包括线芯组件，所述线芯组件外还依次包裹有第一绕包层、编织层、第二绕包层、屏蔽层和阻燃防护层，所述线芯组件与第一绕包层间设有耐高温填充层，所述线芯组件包胶正极线芯和负极线芯，所述正极线芯和负极线芯均包括导体和依次设置在导体外圈的保护层、绝缘层。
  2. 根据权利要求1所述补偿导线，其特征在于：所述导体为镍铬合金绞合导体或钪铜合金绞合导体。
  3. 根据权利要求2所述补偿导线，其特征在于：所述保护层为聚四氟乙烯保护层。
  4. 根据权利要求2或3所述补偿导线，其特征在于：所述绝缘层为高温陶瓷化硅橡胶绝缘层。
  5. 根据权利要求1所述补偿导线，其特征在于：所述第一绕包层为乙烯-四氟乙烯共聚物膜横向绕包层。
  6. 根据权利要求1所述补偿导线，其特征在于：所述编织层为无碱玻璃纤维丝编织层。
  7. 根据权利要求5所述补偿导线，其特征在于：所述第二绕包层为乙烯-四氟乙烯共聚物膜纵向绕包层。
  8. 根据权利要求1所述补偿导线，其特征在于：所述屏蔽层为镀锡细铜丝编织屏蔽层。
  9. 根据权利要求1所述补偿导线，其特征在于：所述耐高温填充层为矿物氧化镁填充层。
  10. 根据权利要求5-9任一权利要求所述补偿导线，其特征在于：所述阻燃防护层为本安型聚氯乙烯阻燃型防护层。
PCT/CN2019/099545 2019-01-31 2019-08-07 一种补偿导线 WO2020155599A1 (zh)

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CN112185626A (zh) * 2020-09-30 2021-01-05 苏州万融线缆科技有限公司 一种耐高温线束的加工方法

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