WO2015103913A1 - 一体化高压绝缘光纤柱 - Google Patents

一体化高压绝缘光纤柱 Download PDF

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Publication number
WO2015103913A1
WO2015103913A1 PCT/CN2014/093240 CN2014093240W WO2015103913A1 WO 2015103913 A1 WO2015103913 A1 WO 2015103913A1 CN 2014093240 W CN2014093240 W CN 2014093240W WO 2015103913 A1 WO2015103913 A1 WO 2015103913A1
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optical fiber
column
mounting
integrated high
high voltage
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PCT/CN2014/093240
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English (en)
French (fr)
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赵波
章利刚
刘慧文
李庆光
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国家电网公司
国网智能电网研究院
中电普瑞科技有限公司
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Publication of WO2015103913A1 publication Critical patent/WO2015103913A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • G02B6/4417—High voltage aspects, e.g. in cladding
    • G02B6/442—Insulators

Definitions

  • the utility model relates to a fiber column, in particular to an integrated high-voltage insulating fiber column.
  • the raw material of optical fiber is high-purity silica, commonly known as glass, which is an insulating material and can be directly used in low-voltage systems.
  • glass which is an insulating material and can be directly used in low-voltage systems.
  • its application in high-voltage power grids is affected by factors such as arc distance, dry arc distance, and use environment. .
  • the traditional high-voltage insulating fiber column manufacturing process is to groove the epoxy tube surface or make a hollow epoxy tube, and package the fiber in the hollow epoxy tube. In order to avoid air breakdown, the gap is partially filled with insulating medium after the fiber is buried.
  • the surface of the epoxy tube is provided with an organic composite insulating jacket and a fitting metal fitting.
  • the optical fiber extending from both ends of the optical fiber column is often directly connected to the device at the high-voltage end. Since the optical fiber itself cannot be directly laid on the ground, the low-voltage end needs the same
  • the fiber optic cable extending from the ground equipment is docked or welded in a special box.
  • the purpose of the utility model is to solve the above-mentioned deficiencies in the prior art
  • the technical solution provided by the utility model is: an integrated high-voltage insulated optical fiber column, which is characterized in that:
  • the optical fiber column includes an insulating column, a voltage equalizing ring, a mounting hardware and a protection tube respectively disposed at two ends of the insulating column, and an optical cable penetrating the insulating column, the mounting hardware and the protection tube.
  • the voltage equalizing ring is vertically disposed at two ends of the insulating column.
  • the protective tube (1) and the protective tube (2) are provided with flanges at both ends, and the mounting fitting (1) and the mounting fitting (2) are respectively provided with through holes, and the mounting holes are provided at both ends of the through hole, and the fittings are installed.
  • (1) The mounting hole at one end is fixed to the flange at one end of the protection tube (1), and the mounting hole at the other end of the mounting fitting (1) is fixed to one end of the insulating post; the mounting hole and the mounting hole at one end of the fitting (2) are installed.
  • the flange of one end of the protection tube (2) is fixed, and the mounting hole at the other end of the mounting metal fitting (2) is fixed to the other end of the insulating column.
  • the insulating column comprises an epoxy rod and a shed-shaped composite jacket coated on the outside of the epoxy rod.
  • the middle section of the optical cable exposes the optical fiber, and the exposed optical fiber is impregnated with the glass fiber, and then encapsulated in the cured epoxy rod by the mold processing; the epoxy rod is bonded to the optical fiber and the glass fiber. , no air gap.
  • the high voltage end of the optical cable extends from one end of the insulating column to the optical fiber, and is taken out through the through hole of the mounting metal fitting (1) and the protection tube (1).
  • an optical fiber connector is disposed at the leading end thereof, and the optical fiber connector is directly connected to the device.
  • the low-voltage end of the optical cable extends from the other end of the insulating column to the optical cable, and is led out through the through hole of the mounting metal fitting (2) and the protective tube (2).
  • the optical cable is taken out through the protection tube (2), it is directly laid on the ground.
  • the end of the optical cable exposes the optical fiber, and the exposed optical fiber is provided with an optical fiber connector, and the optical fiber connector is directly connected to the device.
  • the beneficial effects of the utility model are:
  • optical fiber and the glass filament are immersed in the epoxy resin lacquer, cured by high temperature, compact structure, no air gap, no need to fill any insulating material, eliminating the need for subsequent insulation and sealing treatment, and can greatly improve the fiber column. Insulation and sealing properties;
  • the fiber optic connector is made of high-voltage fiber optic connector and directly connected to the device.
  • the low-voltage cable is directly laid on the ground, and the length can be customized.
  • the connector can be directly connected with the ground device at the end of the cable, which reduces the connection point and attenuation point and reduces Fiber loss, simplifying the installation work in the field;
  • a pressure equalizing ring is vertically disposed at both ends of the insulating column to improve the electric field condition and prevent corona;
  • the optical fiber and the optical cable drawn from the two ends of the insulating column are respectively taken out through the protective tube.
  • the protective tube not only protects the optical fiber and the optical cable exposed to the air, but also directly connects with the equipment mounting hole, which is convenient for on-site installation.
  • FIG. 1 is a schematic view of a high-voltage insulated optical fiber column of a conventional hollow epoxy core rod structure
  • FIG. 2 is an overall structural view of an integrated high-voltage insulated optical fiber column of the present invention
  • Figure 3 is a partial enlarged view of the mounting fitting (2) of the present invention.
  • Figure 4 is a partial enlarged view of the mounting fitting (1) of the present invention.
  • Figure 5 is a partial enlarged view of the insulating column of the present invention.
  • FIG. 1 is a schematic view of a conventional high-voltage insulated optical fiber column of a hollow epoxy core rod structure.
  • the optical fiber is packaged in a hollow epoxy tube.
  • the gap portion is filled with an insulating medium, and the two ends of the epoxy tube can be crimped.
  • the specification of the fittings is used for equipment installation in different occasions.
  • the externally disposed organic composite insulation jacket solves the problem of arcing distance.
  • the fiber extending from both ends of the fiber column and the high-voltage end are provided with fiber optic connectors directly connected to the device. Directly laid on the ground, the low-voltage end needs to be docked or welded with the cable of the ground equipment in the special box.
  • the optical fiber column includes an insulating column, an optical cable that is encapsulated in the insulating column after the optical fiber is exposed in the middle portion, and a voltage equalizing ring (1) and a pressure equalizing vertically disposed at both ends of the insulating column.
  • the fiber is wrapped with fiber paste, skeleton, tarpaulin, steel raft and outer cladding to form a fiber optic cable.
  • the fibers in the figure are all part of the cable.
  • the fiber in the outer leakage is not disconnected from the fiber in the cable, and the length of the fiber encapsulated in the insulating column is Customized according to project needs;
  • the high-voltage end of the optical cable extends from one end of the insulating column to the optical fiber, and is led out by the mounting fitting (1) and the protective tube (1). After being taken out, a fiber connector is arranged at the leading end, and the optical fiber connector is directly connected to the device;
  • the low-voltage end of the optical cable extends from the other end of the insulating column, and is led out by the mounting fitting (2) and the protective tube (2). After being taken out, it is directly laid in the ground air environment, and the end of the optical cable exposes the optical fiber, and the exposed optical fiber With fiber optic connector, the fiber optic connector is directly connected to the device, and the length of the cable can be customized according to the project;
  • the protection tube (1) and the protection tube (2) can be selected according to different use occasions for different materials and lengths; the installation fittings (1) and the mounting fittings (2) can be selected according to different usage occasions.
  • Figure 3 is a partial enlarged view of the mounting fitting (2): the mounting fitting (2) is provided with a through hole, and the mounting hole is provided at both ends of the through hole, and the mounting hole at one end of the mounting fitting (2) is fixed to one end of the insulating column, and the insulating column is fixed.
  • the mounting hole at the other end is fixed to the flange at one end of the protective tube (2).
  • Figure 4 is a partial enlarged view of the mounting fitting (1): the mounting fitting (1) is provided with a through hole, and the mounting hole is provided at both ends of the through hole, and the mounting hole at one end of the mounting fitting (1) is fixed to the other end of the insulating post, and is insulated.
  • the fiber at the other end of the column is led out to the protection tube (1) through the through hole of the mounting fitting (1), the flange of the protection tube (1) is provided at both ends, and the mounting hole and the protection tube of the other end of the fitting (1) are installed (1) )
  • the flange at one end is fixed.
  • Figure 5 is a partial enlarged view of the insulating column: the insulating column includes an epoxy tube and an umbrella-shaped organic composite jacket wrapped around the epoxy tube; the epoxy tube is made of epoxy resin paint, and the optical fiber is impregnated with the glass fiber. After the lacquer is processed and packaged in the cured epoxy tube, the epoxy tube is bonded to the optical fiber and the glass ray, and there is no air gap, and no insulating material needs to be filled.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Cable Accessories (AREA)
  • Insulating Bodies (AREA)

Abstract

一种一体化高压绝缘光纤柱，光纤柱包括绝缘柱，分别设于绝缘柱两端的均压环、安装金具以及保护管，贯穿绝缘柱、安装金具和保护管的光缆。光纤柱结构简单，避免了传统工艺的光纤柱所存在的连接部位多、损耗点多、光纤数量少等缺陷。

Description

一体化高压绝缘光纤柱 技术领域：
本实用新型涉及一种光纤柱，具体讲涉及一种一体化高压绝缘光纤柱。
背景技术：
随着全球矿物资源的逐年减少，价格上涨，较之有色金属，光纤通信容量大、传输快、衰减小、体积轻、抗干扰性能好、资源丰富等优点日益凸显出来。
光纤的原材料为高纯度二氧化硅，俗称玻璃，属绝缘材料，可直接用于低电压系统中，但在高压电网中的应用却会受到弧电距离、干弧距离、使用环境等因素的影响。
传统的高压绝缘光纤柱制作工艺是在环氧管表面刻槽或制作空心环氧管，将光纤封装于空心环氧管中，为避免空气击穿，在光纤埋入后的空隙部分填充绝缘介质，环氧管表面加装有机复合绝缘外套及安装金具，光纤柱两端延伸出的光纤，往往在高压端制作光纤连接器直接与设备连接，由于光纤本身不能在地面直接敷设，低压端需要同地面设备延伸过来的光缆在专用箱中进行对接或焊接。
近两年，随着直流系统及智能电网的快速发展，系统对光纤的应用需求日益提高，无论是从电压等级、光纤数量、环境还是稳定性要求上，都对光纤提出了新的要求，传统工艺的光纤柱存在连接部位多、损耗点多、光纤数量少等问题。
实用新型内容：
本实用新型的目的在于解决现有技术中存在的上述不足，
本实用新型提供的技术方案是：一体化高压绝缘光纤柱，其特征在于：
所述光纤柱包括绝缘柱，分别设于所述绝缘柱两端的均压环、安装金具以及保护管，贯穿所述绝缘柱、所述安装金具和所述保护管的光缆。
优选的，所述均压环垂直设于所述绝缘柱两端。
优选的，保护管(1)和保护管(2)两端均带有法兰，安装金具(1)和安装金具(2)均设有通孔，通孔两端设有安装孔，安装金具(1)一端的安装孔与所述保护管(1)一端的法兰固定，安装金具(1)另一端的安装孔与所述绝缘柱一端固定；安装金具(2)一端的安装孔与所述保护管(2)一端的法兰固定，安装金具(2)另一端的安装孔与所述绝缘柱另一端固定。
优选的，所述绝缘柱包括环氧棒以及包覆在环氧棒外的伞裙状复合外套。
进一步，所述光缆的中间段露出光纤，露出的光纤与玻璃丝一同浸渍环氧树脂漆后经模具加工封装于固化的所述环氧棒内；所述环氧棒与所述光纤、玻璃丝贴合，无空气间隙。
优选的，所述光缆的高压端从所述绝缘柱的一端延伸出光纤，经安装金具(1)的通孔和保护管(1)引出。
进一步，所述光纤经所述保护管(1)引出后，在其引出端设有光纤连接器，所述光纤连接器直接与设备连接。
优选的，所述光缆的低压端从所述绝缘柱的另一端延伸出光缆，经安装金具(2)的通孔和保护管(2)引出。
进一步，所述光缆经所述保护管(2)引出后，直接铺设在地面，所述光缆的末端露出光纤，露出的光纤设有光纤连接器，所述光纤连接器直接与设备连接。与最接近的技术方案比，本实用新型的有益效果是：
(1)光纤与玻璃丝浸渍在环氧树脂漆中，经高温固化，结构紧密，无空气间隙，无需再填充任何绝缘物质，省去了后续的绝缘和密封的处理工作，可以大幅度提高光纤柱的绝缘和密封性能；
(2)环氧管外部包覆有机复合外套，保证了光纤柱的绝缘性能；
(3)光纤柱高压端制作光纤连接器直接与设备连接，低压端光缆直接在地面敷设，长度可定制，光缆端部可制作连接器直接与地面设备连接，减少了连接点与衰减点，降低了光纤损耗，简化了现场的安装工作；
(4)将中间段光纤与玻璃丝一同浸渍环氧树脂漆后经模具加工封装于固化的环氧管内，在同等大小的环氧管内部可以封装传统方式两倍以上数量的光纤；
(5)在绝缘柱两端垂直设有均压环，可以改善电场条件，防止电晕；
(6)绝缘柱两端引出的光纤和光缆分别通过保护管引出，保护管不仅对暴露在空气中的光纤和光缆起保护作用，还可以直接与设备安装孔连接，便于现场安装。
附图说明：
图1为现有的空心环氧芯棒结构的高压绝缘光纤柱示意图；
图2为本实用新型的一体化高压绝缘光纤柱整体结构图；
图3为本实用新型的安装金具(2)的局部放大图；
图4为本实用新型的安装金具(1)的局部放大图；
图5为本实用新型的绝缘柱局部放大图。
具体实施方式：
为了更好地理解本实用新型，下面结合说明书附图对本实用新型的内容进行说明：
图1为传统的空心环氧芯棒结构的高压绝缘光纤柱示意图，光纤封装于空心环氧管中，为避免空气击穿，空隙部分用绝缘介质填充，环氧管两端可以压接多种规格的金具，用于不同场合的设备安装，外部设置有机复合绝缘外套解决弧电距离的问题，光纤柱两端延伸出的光纤，高压端设有光纤连接器直接与设备连接，由于光纤本身不能在地面直接敷设，低压端需要在专用箱中同地面设备的光缆进行对接或焊接。
图2为本实用新型提供的一体化高压绝缘光纤柱，光纤柱包括绝缘柱、中间段露出光纤后封装于绝缘柱内的光缆、垂直设于绝缘柱两端的均压环(1)和均压环(2)、连接绝缘柱和保护管的安装金具(1)和安装金具(2)；
光纤外依次包裹纤膏、骨架、防水布、钢铠以及外包层形成光缆，图中的光纤皆为光缆的一部分，外漏的光纤与光缆中的光纤不断开，封装于绝缘柱中的光纤长度根据项目需求定制；
光缆的高压端从绝缘柱的一端延伸出光纤，经所述安装金具(1)和保护管(1)引出，引出后，在其引出端设有光纤连接器，光纤连接器直接与设备连接；
光缆的低压端从绝缘柱的另一端延伸出光缆，经安装金具(2)和保护管(2)引出，引出后，直接铺设在地面空气环境中，所述光缆的末端露出光纤，露出的光纤设有光纤连接器，光纤连接器直接与设备连接，光缆的长度可以根据工程定制；
保护管(1)和保护管(2)可以根据不同的使用场合选择不同的材质和长度；安装金具(1)和安装金具(2)可以根据不同的使用场合选择不同的规格。
图3为安装金具(2)的局部放大图：安装金具(2)设有通孔，通孔两端设有安装孔，安装金具(2)一端的安装孔与绝缘柱的一端固定，绝缘柱一端引出 光纤至安装金具(2)的通孔内，然后从安装金具(2)的通孔中引出光缆至保护管(2)内；保护管(2)两端设有法兰，安装金具(2)另一端的安装孔与保护管(2)一端的法兰固定。
图4为安装金具(1)的局部放大图：安装金具(1)设有通孔，通孔两端设有安装孔，安装金具(1)一端的安装孔与绝缘柱的另一端固定，绝缘柱另一端引出光纤经安装金具(1)的通孔引出至保护管(1)内，保护管(1)两端设有法兰，安装金具(1)另一端的安装孔与保护管(1)一端的法兰固定。
图5为绝缘柱的局部放大图：绝缘柱包括环氧管以及包裹在环氧管外的伞裙状有机复合外套；环氧管的材料为环氧树脂漆，光纤与玻璃丝一同浸渍环氧树脂漆后经模具加工封装于固化的环氧管内；环氧管与所述光纤、玻璃丝贴合，无空气间隙，无需填充任何绝缘物质。
以上仅为本实用新型的实施例而已，并不用于限制本实用新型，凡在本实用新型的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在申请待批的本实用新型的权利要求范围之内。

Claims (9)

  1. 一体化高压绝缘光纤柱，其特征在于：
    所述光纤柱包括绝缘柱，分别设于所述绝缘柱两端的均压环、安装金具以及保护管，贯穿所述绝缘柱、所述安装金具和所述保护管的光缆。
  2. 如权利要求1所述的一体化高压绝缘光纤柱，其特征在于：
    所述均压环垂直设于所述绝缘柱两端。
  3. 如权利要求1所述的一体化高压绝缘光纤柱，其特征在于：
    保护管(1)和保护管(2)两端均带有法兰，安装金具(1)和安装金具(2)均设有通孔，通孔两端设有安装孔，安装金具(1)一端的安装孔与所述保护管(1)一端的法兰固定，安装金具(1)另一端的安装孔与所述绝缘柱一端固定；安装金具(2)一端的安装孔与所述保护管(2)一端的法兰固定，安装金具(2)另一端的安装孔与所述绝缘柱另一端固定。
  4. 如权利要求1所述的一体化高压绝缘光纤柱，其特征在于：
    所述绝缘柱包括环氧棒以及包覆在环氧棒外的伞裙状复合外套。
  5. 如权利要求4所述的一体化高压绝缘光纤柱，其特征在于：
    所述光缆的中间段露出光纤，露出的光纤与玻璃丝一同浸渍环氧树脂漆后经模具加工封装于固化的所述环氧棒内；所述环氧棒与所述光纤、玻璃丝贴合，无空气间隙。
  6. 如权利要求3所述的一体化高压绝缘光纤柱，其特征在于：
    所述光缆的高压端从所述绝缘柱的一端延伸出光纤，经安装金具(1)的通孔和保护管(1)引出。
  7. 如权利要求6所述的一体化高压绝缘光纤柱，其特征在于：
    所述光纤经所述保护管(1)引出后，在其引出端设有光纤连接器，所述光纤连接器直接与设备连接。
  8. 如权利要求3所述的一体化高压绝缘光纤柱，其特征在于：
    所述光缆的低压端从所述绝缘柱的另一端延伸出光缆，经安装金具(2)的通孔和保护管(2)引出。
  9. 如权利要求8所述的一体化高压绝缘光纤柱，其特征在于：
    所述光缆经所述保护管(2)引出后，直接铺设在地面，所述光缆的末端露出光纤，露出的光纤设有光纤连接器，所述光纤连接器直接与设备连接。
PCT/CN2014/093240 2014-01-10 2014-12-08 一体化高压绝缘光纤柱 WO2015103913A1 (zh)

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CN101852905A (zh) * 2010-06-21 2010-10-06 中国电力科学研究院 一种高压绝缘光纤柱
CN201765356U (zh) * 2010-06-21 2011-03-16 中国电力科学研究院 一种串联结构的高压绝缘光纤柱
CN201765357U (zh) * 2010-06-21 2011-03-16 中国电力科学研究院 高压绝缘光纤柱
CN203630406U (zh) * 2013-12-01 2014-06-04 国家电网公司 高压绝缘光纤柱
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CN201765356U (zh) * 2010-06-21 2011-03-16 中国电力科学研究院 一种串联结构的高压绝缘光纤柱
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