WO2019095703A1 - Câble composite pour système de propulsion à fréquence variable pour navires et plates-formes en mer - Google Patents

Câble composite pour système de propulsion à fréquence variable pour navires et plates-formes en mer Download PDF

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Publication number
WO2019095703A1
WO2019095703A1 PCT/CN2018/094546 CN2018094546W WO2019095703A1 WO 2019095703 A1 WO2019095703 A1 WO 2019095703A1 CN 2018094546 W CN2018094546 W CN 2018094546W WO 2019095703 A1 WO2019095703 A1 WO 2019095703A1
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WO
WIPO (PCT)
Prior art keywords
layer
core
composite
propulsion system
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/094546
Other languages
English (en)
Chinese (zh)
Inventor
王志荣
王红伟
巨国强
田进鑫
康冬冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongtian Technology Industrial Wire & Cable System Co Ltd
Original Assignee
Zhongtian Technology Industrial Wire & Cable System Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongtian Technology Industrial Wire & Cable System Co Ltd filed Critical Zhongtian Technology Industrial Wire & Cable System Co Ltd
Publication of WO2019095703A1 publication Critical patent/WO2019095703A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements
    • 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
    • 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
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • 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
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

Definitions

  • the invention relates to a cable, in particular to a composite cable for a frequency conversion propulsion system for a ship and a marine platform.
  • variable frequency AC drive is widely used in fans, winches, main propellers, rudder propeller drives and various special operating conditions.
  • the development of frequency control transmission technology for marine equipment has higher requirements for frequency variable transmission systems, especially for modern inverter technology using IGBT semiconductors with fast switching.
  • the pulse frequency is high or the time is only within milliseconds, they will
  • the magnetic field generated by the surrounding environment is to maintain the normal operation of the inverter and is not affected by the electromagnetic field.
  • the cable between the inverter and the three-phase AC motor is required to have anti-interference performance, low effective capacitance and low transmission impedance.
  • the technical problem to be solved by the invention is to provide a composite cable for a frequency conversion propulsion system for a ship and a marine platform, so that the cable has a signal transmission function free from electromagnetic interference and adapts to the environment near the frequency conversion propulsion system, and is a good one.
  • Composite cable for light propulsion systems with water resistance, mud resistance, flame retardancy, fire resistance, high and low temperature resistance, and anti-interference performance.
  • a composite cable for a variable frequency propulsion system for ships and offshore platforms including a plurality of cores, optical cables, composite water blocking structures, shielded armor layers, fire barriers and external protection
  • the plurality of cores includes a main insulated core and a neutral core;
  • the main insulated core and the neutral core are both made of an annealed tinned copper stranded soft conductor; the neutral core is extruded with a crosslinked polyethylene insulation layer; the main insulated core is outside the core Wrapping the composite insulating layer and the metal braided shield layer in turn;
  • An optical cable and a flame-retardant PP rope are disposed in a gap between the main insulated core and the neutral core;
  • the composite water blocking structure comprises a water blocking grease filled in a gap between a main insulated core, a neutral core, a cable and a flame retardant PP rope, and a water blocking tape wrapped around the core;
  • the water-blocking bag is wrapped around the package to shield the armor layer, the fire barrier layer and the outer sheath.
  • the plurality of cores includes three main insulated cores and three neutral cores; the three main insulated cores are arranged in a triangular shape and three main insulated cores are tangent; The core is distributed on the outer side of the three main insulated cores, each of which is tangent to the two adjacent main insulated cores; the gap between the neutral core and the main insulated cores on both sides Cable and flame retardant PP rope are installed inside.
  • the composite insulating layer comprises a semiconducting tape wrapped by a conductor, a semiconducting material conductor shielding layer, a crosslinked polyethylene insulation and a semiconductive material insulating shielding layer from the inside to the outside, and the composite insulating layer adopts three layers.
  • the squeezed equipment is packed.
  • the shield armor layer is a shield armor layer woven from a drain wire, a copper strip and nickel-plated carbon fiber.
  • the fire barrier layer is wrapped by a ceramized silicone rubber tape, and the coverage ratio of the ceramized silicone rubber wrapped fire barrier layer is 15 to 25%.
  • the outer sheath is made of a low-smoke, halogen-free flame-retardant cross-linked polyolefin sheathing material, which is resistant to -40 ° C at a low temperature and 125 ° C at a high temperature.
  • the optical cable is a single-mode or multi-mode optical cable that passes through the protective sleeve in advance, and can transmit signals such as temperature detection, humidity detection, frequency feedback, and equipment running state without electromagnetic interference of the variable-frequency propulsion system, and monitor the frequency conversion system in real time. Operation.
  • the metal braided shielding layer has a braid coverage density of ⁇ 88%.
  • the invention has the beneficial effects that the composite cable for the variable frequency propulsion system for the marine and offshore platforms of the invention enhances the signal transmission function of the frequency conversion propulsion system such as temperature detection, humidity detection, frequency feedback, equipment operation state, and is not electromagnetic Interference; can withstand the propulsion system to produce superimposed high-order harmonic voltage, metal braiding outside the insulation can play a certain shielding effect; excellent waterproof performance in the ship's wet variable frequency propulsion system environment; ceramic silicon rubber wrapping tape The self-sealing property of fire makes it an excellent refractory layer structure under fire; the "3+3" symmetrical structure and the drain wire + copper strip + nickel-plated carbon fiber braided armor structure have good anti-interference ability and excellent mechanical properties.
  • the frequency conversion propulsion system such as temperature detection, humidity detection, frequency feedback, equipment operation state, and is not electromagnetic Interference
  • the propulsion system can withstand the propulsion system to produce superimposed high-order harmonic voltage, metal braiding outside the insulation can play a certain shielding effect
  • the composite cable can further reduce the weight of the composite cable, and it is suitable for the complex environment of the cabin with small space and frequent bending and vibration. It is flame retardant, refractory and has high temperature resistance. It is also resistant to mud, oil, abrasion and electrical insulation and excellent mechanical properties.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic view showing the structure of a neutral core.
  • Figure 3 is a schematic view showing the structure of a main insulated core.
  • the composite cable for the variable frequency propulsion system for marine and offshore platforms of the present invention comprises a plurality of cores, optical cables, composite water blocking structures, shield armor layers, fire barrier layers and outer jackets.
  • the composite cable for the variable frequency propulsion system for marine and offshore platforms of the present invention comprises three main insulated cores, three neutral cores 2, optical cables 5, composite water blocking structures, and shielded armor layers. , the fire barrier layer 12 and the outer sheath 13 .
  • the main insulated core 1 and the neutral core 2 are each composed of an annealed tinned copper stranded soft conductor; the neutral core 2 is extruded with a crosslinked polyethylene insulating layer 21; The insulated core 1 is wrapped around the composite insulating layer 4 and the metal braided shield layer 44 in turn;
  • the arrangement structure select a class 5 or class 6 soft conductor, and determine the number of individual filaments, the arrangement structure.
  • the three main insulated cores 1 are arranged in a triangular shape and three main insulated cores are tangent; the three neutral cores 2 are distributed outside the three main insulated cores, and each neutral core 2 Both are tangent to two adjacent main insulated cores 1.
  • the composite insulating layer 4 includes a semiconducting tape 41 wrapped by a conductor, a semiconducting material conductor shielding layer 42, a crosslinked polyethylene insulating and a semiconductive material insulating shielding layer 43 in order from the inside to the outside, and the composite insulating layer 4 is three.
  • the layer coextrusion equipment is extruded.
  • the outer semi-conducting tape wrapped around the main insulation core ensures the smoothness of the shielding material when it is in contact.
  • the three-layer co-extrusion and the extrusion of the conductor shielding, insulation and insulation shielding can not only ensure the bonding strength, but also ensure the smoothness and reduce the semi-conductivity.
  • the protrusions of the layer reduce the local electrical stress and can withstand three times the peak voltage caused by the superposition of higher harmonics.
  • the main wire core outer metal braided shield adopts an annealed tinned copper soft conductor, and the braiding coverage density is not less than 88%.
  • the neutral core is extruded with cross-linked polyethylene insulation, and the total cross section of the neutral line is not less than half of the main core.
  • the 3+3E structure forms a state of symmetrical equilibrium, so that the current components do not form a superposition, thereby effectively reducing the adverse effects of higher harmonics on the variable frequency cable.
  • the gap between the main insulated core 1 and the neutral core 2 is filled with the optical cable 5 and the flame-retardant PP rope.
  • the composite water blocking structure comprises a water blocking grease 7 filled in the gap between the main insulated core 1, the neutral core 2, the optical cable 5 and the flame-retardant PP rope 6, and a water blocking package wrapped around the core With 8.
  • the optical cable 5 is an optical cable that passes through the protective cover in advance, and the number of the optical cables is three or six.
  • the number of optical fibers in the optical cable can be confirmed according to specific design requirements.
  • the number of cores and the modulus of the fiber optic cable can be confirmed according to specific design requirements.
  • the optical cable can transmit the temperature detection, humidity detection, frequency feedback, equipment running status and other signals without electromagnetic interference from the variable frequency propulsion system, and monitor the operation of the frequency conversion system in real time without increasing the outer diameter of the cable.
  • the water blocking tape 8 is wrapped around the armor layer, the fire barrier layer 12 and the outer sheath 13 in turn.
  • the shield armor layer is a shield armor layer woven from the drain wire 9, the copper strip 10 and the nickel-plated carbon fiber 11.
  • the drain wire is an annealed tinned copper soft conductor, so that the copper strip shield layer maintains continuity and can conduct accumulated charge, short circuit current, and leakage current to facilitate connection of the ground wire.
  • the nickel-plated carbon fiber has a density of about 2.4 g/cm 3 , and the strength is far superior to that of the tin-plated copper wire under the same specification, the woven cover density is not less than 88%, and the control shielding effect reaches 100%.
  • the shield structure is more stable and reliable, and the overall weight can be reduced by about 15%.
  • the fire barrier layer 12 is wrapped by a ceramized silicone rubber tape, and the coverage ratio of the ceramicized silicone rubber wrapping tape is 15 to 25%. In the case of fire, it is automatically closed and becomes an effective refractory structure, ensuring continuous power supply for more than 90 minutes in a large fire.
  • the outer sheath 13 is made of a low-smoke, halogen-free flame-retardant cross-linked polyolefin sheathing material, which is resistant to -40 ° C at a low temperature and 125 ° C at a high temperature. Its flame retardant, fireproof and high temperature resistance are outstanding. It also has mud resistance, oil resistance, wear resistance and electrical insulation and excellent mechanical properties. It effectively ensures the use of the variable frequency propulsion system to withstand long-term high temperature environment.
  • the composite cable of the present invention can be fire-resistant according to the test conditions described in IEC 60331-1/2, and is continuously fired for 90 minutes at a flame temperature of 830 ° C.
  • the power supply of the cable is normal for 15 minutes after the fire is removed, and the cable is not broken.

Landscapes

  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

L'invention concerne un câble composite pour un système de propulsion à fréquence variable pour navires et plates-formes en mer, comprenant de multiples noyaux, un câble optique (5), une structure composite imperméable, une couche d'armature de blindage, une couche barrière au feu (12) et une gaine externe (13), les multiples noyaux comprenant un noyau d'isolation principal (1) et un noyau neutre (2) ; une couche d'isolation en polyéthylène réticulé (21) est extrudée à l'extérieur du noyau neutre (2) ; une couche d'isolation composite et une couche de blindage métallique tissé (44) sont enroulées successivement autour du noyau d'isolation principal (1) ; un espace entre le noyau d'isolation principal (1) et le noyau neutre (2) comprend intérieurement le câble optique (5) et un câble PP ignifuge (6) ; la structure composite imperméable comprend de la graisse imperméable (7) et une ceinture d'enveloppement imperméable (8) ; la ceinture d'enveloppement imperméable (8) est enroulée autour de la couche d'armure de blindage, de la couche barrière au feu (12) et de la gaine externe (13) en séquence. Le câble composite pour le système de propulsion à fréquence variable peut améliorer une fonction de surveillance de signal et est exempt d'interférence électromagnétique, et présente une meilleure tolérance vis-à-vis des impacts de tension harmonique d'ordre élevé à fréquence variable. Le système de blindage multicouche peut mieux résister à l'extérieur et à son propre brouillage de signal, et présente une meilleure performance en termes de tension, d'eau et de résistance à l'humidité, et de résistance à la température élevée et faible.
PCT/CN2018/094546 2017-11-16 2018-07-04 Câble composite pour système de propulsion à fréquence variable pour navires et plates-formes en mer Ceased WO2019095703A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711137765.XA CN107887071A (zh) 2017-11-16 2017-11-16 船舶及海工平台用变频推进系统用复合缆
CN201711137765.X 2017-11-16

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WO2019095703A1 true WO2019095703A1 (fr) 2019-05-23

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WO (1) WO2019095703A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112117035A (zh) * 2020-09-23 2020-12-22 昆明昆宝电线电缆制造有限公司 一种高柔韧性tpu弹性体无人机耐候型电缆
CN112908526A (zh) * 2019-12-03 2021-06-04 广州澳通电线电缆有限公司 一种环保型防火电缆
CN118522495A (zh) * 2023-03-17 2024-08-20 张健 一种复合型防潮变频电缆

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CN107887071A (zh) * 2017-11-16 2018-04-06 中天科技装备电缆有限公司 船舶及海工平台用变频推进系统用复合缆
CN111029005B (zh) * 2019-12-31 2021-05-11 中天科技装备电缆有限公司 一种船舶及海工平台用轻型变频软电缆及其制造方法

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KR20120057823A (ko) * 2010-11-29 2012-06-07 대한전선 주식회사 라미네이팅 동판 시스를 갖는 전력케이블
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CN203966658U (zh) * 2014-07-01 2014-11-26 安徽太平洋电缆股份有限公司 铝合金芯中压变频耐火电力电缆
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112908526A (zh) * 2019-12-03 2021-06-04 广州澳通电线电缆有限公司 一种环保型防火电缆
CN112117035A (zh) * 2020-09-23 2020-12-22 昆明昆宝电线电缆制造有限公司 一种高柔韧性tpu弹性体无人机耐候型电缆
CN118522495A (zh) * 2023-03-17 2024-08-20 张健 一种复合型防潮变频电缆

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