WO2021184708A1 - Gil-apparatus standard unit employing novel internal structure, and implementation method - Google Patents

Gil-apparatus standard unit employing novel internal structure, and implementation method Download PDF

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Publication number
WO2021184708A1
WO2021184708A1 PCT/CN2020/115573 CN2020115573W WO2021184708A1 WO 2021184708 A1 WO2021184708 A1 WO 2021184708A1 CN 2020115573 W CN2020115573 W CN 2020115573W WO 2021184708 A1 WO2021184708 A1 WO 2021184708A1
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Prior art keywords
pillar insulator
gil
conductive rod
sliding
pillar
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PCT/CN2020/115573
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French (fr)
Chinese (zh)
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黎卫国
张长虹
杨旭
黄忠康
楚金伟
彭翔
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中国南方电网有限责任公司超高压输电公司检修试验中心
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Publication of WO2021184708A1 publication Critical patent/WO2021184708A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/145—Insulators, poles, handles, or the like in electric fences
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/38—Fittings, e.g. caps; Fastenings therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/46—Means for providing an external arc-discharge path

Definitions

  • the invention relates to the field of electric power technology, in particular to a GIL equipment standard unit based on a new internal structure, GIL equipment and an implementation method.
  • GIL Gas-insulated metal enclosed transmission lines
  • the mainstream technical route of GIL equipment uses fixed three-pillar insulators and sliding three-pillar insulators to be used together.
  • Fixed three-pillar insulators and sliding three-pillar insulators are installed in The same long conductive rod.
  • the legs of the sliding three-pillar are provided with copper electrodes that are connected to the inner wall of the GIL pipe. Affected by the thermal expansion and contraction of the GIL equipment, the fixed three-pillar insulator and the long conductive rod will follow the deformation of the GIL pipe and move back and forth.
  • the sliding three-pillar insulator is also installed on the On the same long conductive rod, the copper electrode of the sliding three-pillar insulator will also produce reciprocating sliding wear, which will affect the electrical performance and grounding reliability of the sliding three-pillar insulator.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a standard unit of GIL equipment based on a new internal structure, which can get rid of the influence of the thermal expansion of the GIL equipment on the electrical performance and life of the sliding three-pillar insulator.
  • a standard unit of GIL equipment based on a new internal structure including GIL pipe, single-pillar insulator assembly, long conductive rod and sliding three-pillar insulator assembly; at least one end of the long conductive rod is supported by a single-pillar insulator assembly, and the middle of the long conductive rod is used Supported by at least one sliding three-pillar insulator assembly.
  • the length of the GIL pipeline is 12-18m.
  • the single-pillar insulator assembly includes a single-pillar insulator, a short conductive rod and a metal sealing cover; both sides of the short conductive rod are provided with contact seats for mating connection with the long conductive rod , And the long conductive rod can be moved back and forth in the axial direction after being inserted into the contact seat; the top of the single-pillar insulator is connected to the middle of the short conductive rod through the insert, and the bottom is connected with the metal sealing cover through the insert; the metal sealing cover is installed in the GIL The pipe is placed on the hand hole.
  • the center of the metal sealing cover plate is 300 mm away from the end of the GIL pipe, and a particle trap is arranged near the single-pillar insulator.
  • the depth variation of the long conductive rod inserted into the contact base is set to ⁇ 40mm.
  • the sliding three-pillar insulator assembly includes a sliding three-pillar insulator and a particle trap; the supporting legs of the sliding three-pillar insulator are arranged at 120°, and the center is provided with an aluminum sleeve insert and an aluminum sleeve insert
  • the long conductive rod is fixed by welding or crimping.
  • Two of the supporting legs of the sliding three-pillar insulator are provided with rollers, the other supporting leg is provided with a ground electrode, and the particle trap is arranged around the sliding three-pillar insulator.
  • Another object of the present invention is to provide a method for using the aforementioned GIL standard unit to realize that the deformation of the housing does not affect the performance of the sliding three-pillar insulator, which includes the following steps:
  • Step 1 Producing sliding three-pillar insulator assembly, pouring the epoxy material of the three-pillar insulator together with the central aluminum sleeve and the bottom insert, set up particle traps around the sliding three-pillar insulator, and install the bottom inserts on two of the supporting legs Pulley, the bottom insert of the other support leg is equipped with a ground electrode;
  • Step 2 Production of single-pillar insulator components, pouring single-pillar insulator epoxy material with the top and bottom inserts, and use bolts to fasten the metal sealing cover plate and single-pillar insulator bottom inserts. Mount the contact base at the end;
  • Step 3 Fix the sliding three-pillar insulator assembly on the long conductive rod by welding or crimping;
  • Step 4 Push the long conductive rod with the sliding three-pillar insulator assembly into the GIL pipeline;
  • Step 5 Insert the short conductive rod to one end of the long conductive rod;
  • Step 6 Install the single-pillar insulator with a metal sealing cover on the external hand hole of the GIL pipe, and fasten the short conductive rod with the top insert of the single-pillar insulator with bolts;
  • Step 7 Install the particle trap near the single-pillar insulator and clean the inside of the GIL to complete a standard unit of GIL equipment;
  • Step 8 Connect multiple GIL equipment standard units to extend the length of the air chamber;
  • Step 9 Vacuum the gas chamber of the GIL device and fill it with SF6 gas to realize the assembly of the GIL device based on the new internal structure.
  • the shell deformation of the GIL pipe is absorbed by the short conductive rod contact seat, which does not affect the sliding three-pillar insulator.
  • the invention uses the depth of the contact seat at both ends of the short conductive rod to absorb the deformation of the GIL pipe shell, solves the problem that the sliding three-pillar insulator is directly affected by the deformation of the GIL pipe shell in the existing mainstream technical route, and greatly reduces the round-trip wear of the grounded copper electrode , Improve the grounding reliability of the copper electrode of the sliding three-pillar insulator, avoid the discharge failure of the sliding three-pillar insulator, and improve the reliability of equipment operation.
  • FIG. 1 is a schematic diagram of a standard unit of GIL equipment based on a new internal structure according to an embodiment of the present invention
  • a GIL equipment standard unit based on a new internal structure in this embodiment mainly includes a GIL pipe 1, a single-pillar insulator subassembly 2, a long conductive rod 3, and a sliding three-pillar insulator subassembly 4.
  • the length of the GIL pipeline 1 is set to 12-18m, the left end of the long conductive rod 3 is supported by a single-pillar insulator assembly 2, and the middle of the long conductive rod 3 is supported by one or two sliding three-pillar insulator assemblies.
  • the single-pillar insulator assembly 2 includes a single-pillar insulator 21, a short conductive rod 22 and a metal sealing cover 23.
  • the short conductive rod 22 is provided with contact holders 24 on both sides, which can be formed integrally or separately.
  • the depth of the long conductive rod 3 inserted into the contact holder 24 is set to ⁇ 40mm, because the long conductive rod 3 can be moved along the contact
  • the seat 24 moves back and forth so as to absorb the deformation of the shell of the GIL pipe 1.
  • Both the top and bottom of the single-pillar insulator 21 are provided with inserts, and the top insert of the single-pillar insulator 21 is fixedly connected with the short conductive rod 22, and the bottom insert and the metal sealing cover 23 are fixedly connected by fastening bolts.
  • the metal sealing cover 23 is installed on the external hand hole of the GIL pipe 1.
  • the center of the metal sealing cover 23 is 300 mm away from the end of the GIL pipe 1, and a single-pillar insulator particle trap 25 is installed near the single-pillar insulator 21.
  • the sliding three-post insulator assembly 4 includes a sliding three-post insulator 41 and a three-post insulator particle trap 42.
  • the supporting legs of the sliding three-pillar insulator 41 are arranged at 120°, and the center is provided with an aluminum sleeve insert.
  • the aluminum sleeve insert and the long conductive rod 3 are fixed by welding or crimping.
  • Two of the supporting legs of the sliding three-pillar insulator 41 are provided with The roller, the other supporting leg is provided with a ground electrode 44, and the three-pillar insulator particle trap 42 is arranged around the sliding three-pillar insulator 41.
  • a method of using GIL standard unit based on a new internal structure to realize that the deformation of the shell does not affect the performance of the sliding three-pillar insulator which specifically includes the following steps:
  • Step 1 Producing sliding three-pillar insulator assembly, pouring the epoxy material of the three-pillar insulator together with the central aluminum sleeve and the bottom insert, set up particle traps around the sliding three-pillar insulator, and install the bottom inserts on two of the supporting legs Pulley, the bottom insert of the other support leg is equipped with a ground electrode;
  • Step 2 Production of single-pillar insulator components, pouring single-pillar insulator epoxy material with the top and bottom inserts, and use bolts to fasten the metal sealing cover plate and single-pillar insulator bottom inserts. Mount the contact base at the end;
  • Step 3 Fix the sliding three-pillar insulator assembly on the long conductive rod by welding or crimping;
  • Step 4 Push the long conductive rod with the sliding three-pillar insulator assembly into the GIL pipeline;
  • Step 5 Insert the short conductive rod to one end of the long conductive rod;
  • Step 6 Install the single-pillar insulator with a metal sealing cover on the external hand hole of the GIL pipe, and fasten the short conductive rod with the top insert of the single-pillar insulator with bolts;
  • Step 7 Install the particle trap near the single-pillar insulator and clean the inside of the GIL to complete a standard unit of GIL equipment;
  • Step 8 Connect multiple GIL equipment standard units to extend the length of the air chamber;
  • Step 9 Vacuum the gas chamber of the GIL device and fill it with SF6 gas to realize the assembly of the GIL device based on the new internal structure.
  • the shell deformation of the GIL pipe is absorbed by the short conductive rod contact seat, which does not affect the sliding three-pillar insulator.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

A GIL-apparatus standard unit employing a novel internal structure, comprising a GIL pipe (1), a single-post insulator assembly (2), a long conductive rod (3), and a slidable tri-post insulator assembly (4). At least one end of the long conductive rod (3) is supported by the single-post insulator assembly (2), and a middle portion of the long conductive rod (3) is supported by at least one slidable tri-post insulator assembly (4). A method in which the GIL-apparatus standard unit is used such that deformation of a housing does not impact a slidable tri-post insulator (41). Contact bases (24) at two ends of a short conductive rod (22) are used to absorb thermal deformation of a GIL housing, so as to greatly reduce wear of a grounded copper electrode of the slidable tri-post insulator (41) resulting from back-and-forth movements, improve the grounding reliability of the copper electrode, and prevent the slidable tri-post insulator (41) from experiencing a discharge failure; thus improving the operational reliability of the apparatus.

Description

基于新型内部结构的GIL设备标准单元及实现方法Standard unit of GIL equipment based on new internal structure and its realization method 技术领域Technical field
本发明涉及电力技术领域，具体涉及一种基于新型内部结构的GIL设备标准单元、GIL设备及实现方法。The invention relates to the field of electric power technology, in particular to a GIL equipment standard unit based on a new internal structure, GIL equipment and an implementation method.
背景技术Background technique
气体绝缘金属封闭输电线路(以下简称GIL)已大量应用在电网重点工程中，目前GIL设备主流技术路线采用固定三支柱绝缘子和滑动三支柱绝缘子配合使用，固定三支柱绝缘子和滑动三支柱绝缘子安装在同一根长导电杆。滑动三支柱腿部设置铜电极与GIL管道内壁接触连接，受GIL设备热胀冷缩的影响，固定三支柱绝缘子与长导电杆将跟随GIL管道形变而往返位移，由于滑动三支柱绝缘子也安装在同一根长导电杆上，滑动三支柱绝缘子铜电极也将产生往返滑动磨损，对滑动三支柱绝缘子的电气性能和接地可靠性产生影响，实际工程上也曾发生多起滑动三支柱绝缘子放电故障，造成巨大经济损失和不良的社会影响。Gas-insulated metal enclosed transmission lines (hereinafter referred to as GIL) have been widely used in key power grid projects. At present, the mainstream technical route of GIL equipment uses fixed three-pillar insulators and sliding three-pillar insulators to be used together. Fixed three-pillar insulators and sliding three-pillar insulators are installed in The same long conductive rod. The legs of the sliding three-pillar are provided with copper electrodes that are connected to the inner wall of the GIL pipe. Affected by the thermal expansion and contraction of the GIL equipment, the fixed three-pillar insulator and the long conductive rod will follow the deformation of the GIL pipe and move back and forth. Because the sliding three-pillar insulator is also installed on the On the same long conductive rod, the copper electrode of the sliding three-pillar insulator will also produce reciprocating sliding wear, which will affect the electrical performance and grounding reliability of the sliding three-pillar insulator. There have also been many discharge faults of the sliding three-pillar insulator in practical engineering. Cause huge economic losses and negative social impact.
发明内容Summary of the invention
本发明的目的在于克服上述现有技术的不足，提供一种基于新型内部结构的GIL设备标准单元，摆脱GIL设备受热膨胀影响滑动三支柱绝缘子电气性能及寿命影响。The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a standard unit of GIL equipment based on a new internal structure, which can get rid of the influence of the thermal expansion of the GIL equipment on the electrical performance and life of the sliding three-pillar insulator.
为实现上述目的，本发明的技术方案为：In order to achieve the above objective, the technical solution of the present invention is:
一种基于新型内部结构的GIL设备标准单元，包括GIL管道、单支柱绝缘子组件、长导电杆和滑动三支柱绝缘子组件；长导电杆的至少一端采用单支柱绝缘子组件支撑，长导电杆的中部采用至少一个滑动三支柱绝缘子组件支撑。A standard unit of GIL equipment based on a new internal structure, including GIL pipe, single-pillar insulator assembly, long conductive rod and sliding three-pillar insulator assembly; at least one end of the long conductive rod is supported by a single-pillar insulator assembly, and the middle of the long conductive rod is used Supported by at least one sliding three-pillar insulator assembly.
作为本发明的一种改进，所述的GIL管道的长度为12～18m。As an improvement of the present invention, the length of the GIL pipeline is 12-18m.
作为本发明的一种改进，所述的单支柱绝缘子组件包括单支柱绝缘子、短导电杆和金属密封盖板；短导电杆的两侧均设置有用于与长导电杆插配连接的触头座，且长导电杆***触头座后可沿轴向来回移动；单支柱绝缘子的顶部通过嵌件与短导电杆中部连接，底部通过嵌件与金属密封盖板连接；金属密封盖板安装在GIL管道外置手孔上。As an improvement of the present invention, the single-pillar insulator assembly includes a single-pillar insulator, a short conductive rod and a metal sealing cover; both sides of the short conductive rod are provided with contact seats for mating connection with the long conductive rod , And the long conductive rod can be moved back and forth in the axial direction after being inserted into the contact seat; the top of the single-pillar insulator is connected to the middle of the short conductive rod through the insert, and the bottom is connected with the metal sealing cover through the insert; the metal sealing cover is installed in the GIL The pipe is placed on the hand hole.
进一步地，所述的金属密封盖板中心距离GIL管道端部300mm，并在单支柱绝缘子附近设置粒子捕捉器。Further, the center of the metal sealing cover plate is 300 mm away from the end of the GIL pipe, and a particle trap is arranged near the single-pillar insulator.
更进一步地，所述的长导电杆***触头座深度变化设置为±40mm。Furthermore, the depth variation of the long conductive rod inserted into the contact base is set to ±40mm.
作为本发明的一种改进，所述的滑动三支柱绝缘子组件包括滑动三支柱绝缘子和粒子捕捉器；滑动三支柱绝缘子的支撑腿按照120°布置，中心设置有铝套嵌件，铝套嵌件与长导电杆采用焊接或压接固定，滑动三支柱绝缘子的其中2个支撑腿设置有滚轮，另一个支撑腿设置有接地电极，粒子捕捉器设置在滑动三支柱绝缘子四周。As an improvement of the present invention, the sliding three-pillar insulator assembly includes a sliding three-pillar insulator and a particle trap; the supporting legs of the sliding three-pillar insulator are arranged at 120°, and the center is provided with an aluminum sleeve insert and an aluminum sleeve insert The long conductive rod is fixed by welding or crimping. Two of the supporting legs of the sliding three-pillar insulator are provided with rollers, the other supporting leg is provided with a ground electrode, and the particle trap is arranged around the sliding three-pillar insulator.
本发明的另一目的在于提供一种利用上述GIL标准单元实现外壳形变不影响滑动三支柱绝缘子性能的方法，包括如下步骤：Another object of the present invention is to provide a method for using the aforementioned GIL standard unit to realize that the deformation of the housing does not affect the performance of the sliding three-pillar insulator, which includes the following steps:
步骤1、生产滑动三支柱绝缘子组件，将三支柱绝缘子环氧材料与中心铝套和底部嵌件浇注一起，在滑动三支柱绝缘子四周设置粒子捕捉器，并在其中2个支撑腿底部嵌件安装滑轮，另一个支撑腿底部嵌件安装接地电极； Step 1. Producing sliding three-pillar insulator assembly, pouring the epoxy material of the three-pillar insulator together with the central aluminum sleeve and the bottom insert, set up particle traps around the sliding three-pillar insulator, and install the bottom inserts on two of the supporting legs Pulley, the bottom insert of the other support leg is equipped with a ground electrode;
步骤2、生产单支柱绝缘子组件，将单支柱绝缘子环氧材料与顶部和底部嵌件浇注一起，并利用螺栓将金属密封盖板与单支柱绝缘子底部嵌件紧固连接，在短导电杆的两端安装触头座； Step 2. Production of single-pillar insulator components, pouring single-pillar insulator epoxy material with the top and bottom inserts, and use bolts to fasten the metal sealing cover plate and single-pillar insulator bottom inserts. Mount the contact base at the end;
步骤3、将滑动三支柱绝缘子组件通过焊接或压接固定在长导电杆上； Step 3. Fix the sliding three-pillar insulator assembly on the long conductive rod by welding or crimping;
步骤4、将带滑动三支柱绝缘子组件的长导电杆推送至GIL管道内部；Step 4. Push the long conductive rod with the sliding three-pillar insulator assembly into the GIL pipeline;
步骤5、将短导电杆插接至长导电杆一端；Step 5. Insert the short conductive rod to one end of the long conductive rod;
步骤6、将带金属密封盖板的单支柱绝缘子安装在GIL管道外置手孔上，并利用螺栓将短导电杆与单支柱绝缘子的顶部嵌件紧固；Step 6. Install the single-pillar insulator with a metal sealing cover on the external hand hole of the GIL pipe, and fasten the short conductive rod with the top insert of the single-pillar insulator with bolts;
步骤7、将粒子捕捉器安装在单支柱绝缘子附近，并对GIL内部进行清洁，完成一个GIL设备标准单元；Step 7. Install the particle trap near the single-pillar insulator and clean the inside of the GIL to complete a standard unit of GIL equipment;
步骤8、将多个GIL设备标准单元对接起来，延长气室长度；Step 8. Connect multiple GIL equipment standard units to extend the length of the air chamber;
步骤9、将GIL设备气室抽真空、充SF6气体，实现基于新型内部结构的GIL设备的组装，GIL管道的外壳形变量靠短导电杆触头座吸收，不影响滑动三支柱绝缘子。Step 9. Vacuum the gas chamber of the GIL device and fill it with SF6 gas to realize the assembly of the GIL device based on the new internal structure. The shell deformation of the GIL pipe is absorbed by the short conductive rod contact seat, which does not affect the sliding three-pillar insulator.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
本发明利用短导电杆两端触头座深度，吸收GIL管道外壳形变量，解决了现有主流技术路线中滑动三支柱绝缘子直接受GIL管道外壳形变影响的难题，大大减少接地铜电极的往返磨损，提高滑动三支柱绝缘子铜电极的接地可靠性，避免滑动三支柱绝缘子发生放电故障，提高设备运行可靠性。The invention uses the depth of the contact seat at both ends of the short conductive rod to absorb the deformation of the GIL pipe shell, solves the problem that the sliding three-pillar insulator is directly affected by the deformation of the GIL pipe shell in the existing mainstream technical route, and greatly reduces the round-trip wear of the grounded copper electrode , Improve the grounding reliability of the copper electrode of the sliding three-pillar insulator, avoid the discharge failure of the sliding three-pillar insulator, and improve the reliability of equipment operation.
附图说明Description of the drawings
图1为本发明实施例的基于新型内部结构的GIL设备标准单元的示意图；FIG. 1 is a schematic diagram of a standard unit of GIL equipment based on a new internal structure according to an embodiment of the present invention;
附图标记说明：1-GIL管道；2-单支柱绝缘子组件；3-长导电杆；4-滑动三支柱绝缘子组件；21-单支柱绝缘子；22-短导电杆；23-密封盖板；24-触头座；25-单支柱绝缘子粒子捕捉器；41-滑动三支柱绝缘子；42-三支柱绝缘子粒子捕捉器；43-滚轮；44-接地电极。Description of Reference Signs: 1-GIL pipeline; 2-single-pillar insulator assembly; 3-long conductive rod; 4-sliding three-pillar insulator assembly; 21-single pillar insulator; 22-short conductive rod; 23-sealing cover plate; 24 -Contact base; 25-Single-pillar insulator particle trap; 41-Sliding three-pillar insulator; 42-Three-pillar insulator particle trap; 43-roller; 44-ground electrode.
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1所示，本实施例的一种基于新型内部结构的GIL设备标准单元，主要包括GIL管道1、单支柱绝缘子组件2、长导电杆3和滑动三支柱绝缘子组件4。As shown in FIG. 1, a GIL equipment standard unit based on a new internal structure in this embodiment mainly includes a GIL pipe 1, a single-pillar insulator subassembly 2, a long conductive rod 3, and a sliding three-pillar insulator subassembly 4.
GIL管道1长度设置12～18m，长导电杆3的左端采用单支柱绝缘子组件2支撑，长导电杆3的中部采用1个或2个滑动三支柱绝缘子组件支撑。The length of the GIL pipeline 1 is set to 12-18m, the left end of the long conductive rod 3 is supported by a single-pillar insulator assembly 2, and the middle of the long conductive rod 3 is supported by one or two sliding three-pillar insulator assemblies.
单支柱绝缘子组件2包括单支柱绝缘子21、短导电杆22和金属密封盖板23。短导电杆22的两侧设置有触头座24，可一体成型，也可分体设置，长导电杆3***触头座24的深度变化设置为±40mm，由于长导电杆3可沿触头座24来回移动，从而可以吸收GIL管道1外壳形变量。单支柱绝缘子21的顶部和底部均设置有嵌件，通过紧固螺栓将单支柱绝缘子21顶部嵌件与短导电杆22、底部嵌件与金属密封盖板23固定连接。金属密封盖板23则安装在GIL管道1外置手孔上，金属密封盖板23中心距离GIL管道1端部300mm，并在单支柱绝缘子21附近设置单支柱绝缘子粒子捕捉器25。The single-pillar insulator assembly 2 includes a single-pillar insulator 21, a short conductive rod 22 and a metal sealing cover 23. The short conductive rod 22 is provided with contact holders 24 on both sides, which can be formed integrally or separately. The depth of the long conductive rod 3 inserted into the contact holder 24 is set to ±40mm, because the long conductive rod 3 can be moved along the contact The seat 24 moves back and forth so as to absorb the deformation of the shell of the GIL pipe 1. Both the top and bottom of the single-pillar insulator 21 are provided with inserts, and the top insert of the single-pillar insulator 21 is fixedly connected with the short conductive rod 22, and the bottom insert and the metal sealing cover 23 are fixedly connected by fastening bolts. The metal sealing cover 23 is installed on the external hand hole of the GIL pipe 1. The center of the metal sealing cover 23 is 300 mm away from the end of the GIL pipe 1, and a single-pillar insulator particle trap 25 is installed near the single-pillar insulator 21.
滑动三支柱绝缘子组件4包括滑动三支柱绝缘子41和三支柱绝缘子粒子捕捉器42。滑动三支柱绝缘子41的支撑腿按照120°布置，中心设置有铝套嵌件，铝套嵌件与长导电杆3采用焊接或压接固定，滑动三支柱绝缘子41的其中两个支撑腿设置有滚轮，另一个支撑腿设置有接地电极44，三支柱绝缘子粒子捕捉器42设置在滑动三支柱绝缘子41四周。The sliding three-post insulator assembly 4 includes a sliding three-post insulator 41 and a three-post insulator particle trap 42. The supporting legs of the sliding three-pillar insulator 41 are arranged at 120°, and the center is provided with an aluminum sleeve insert. The aluminum sleeve insert and the long conductive rod 3 are fixed by welding or crimping. Two of the supporting legs of the sliding three-pillar insulator 41 are provided with The roller, the other supporting leg is provided with a ground electrode 44, and the three-pillar insulator particle trap 42 is arranged around the sliding three-pillar insulator 41.
一种利用基于新型内部结构的GIL标准单元实现外壳形变不影响滑动三支柱绝缘子性能的方法，具体包括以下步骤：A method of using GIL standard unit based on a new internal structure to realize that the deformation of the shell does not affect the performance of the sliding three-pillar insulator, which specifically includes the following steps:
步骤1、生产滑动三支柱绝缘子组件，将三支柱绝缘子环氧材料与中心铝套和底部嵌件浇注一起，在滑动三支柱绝缘子四周设置粒子捕捉器，并在其中2个支撑腿底部嵌件安装滑轮，另一个支撑腿底部嵌件安装接地电极； Step 1. Producing sliding three-pillar insulator assembly, pouring the epoxy material of the three-pillar insulator together with the central aluminum sleeve and the bottom insert, set up particle traps around the sliding three-pillar insulator, and install the bottom inserts on two of the supporting legs Pulley, the bottom insert of the other support leg is equipped with a ground electrode;
步骤2、生产单支柱绝缘子组件，将单支柱绝缘子环氧材料与顶部和底部嵌件浇注一起，并利用螺栓将金属密封盖板与单支柱绝缘子底部嵌件紧固连接，在短导电杆的两端安装触头座； Step 2. Production of single-pillar insulator components, pouring single-pillar insulator epoxy material with the top and bottom inserts, and use bolts to fasten the metal sealing cover plate and single-pillar insulator bottom inserts. Mount the contact base at the end;
步骤3、将滑动三支柱绝缘子组件通过焊接或压接固定在长导电杆上； Step 3. Fix the sliding three-pillar insulator assembly on the long conductive rod by welding or crimping;
步骤4、将带滑动三支柱绝缘子组件的长导电杆推送至GIL管道内部；Step 4. Push the long conductive rod with the sliding three-pillar insulator assembly into the GIL pipeline;
步骤5、将短导电杆插接至长导电杆一端；Step 5. Insert the short conductive rod to one end of the long conductive rod;
步骤6、将带金属密封盖板的单支柱绝缘子安装在GIL管道外置手孔上，并利用螺栓将短导电杆与单支柱绝缘子的顶部嵌件紧固；Step 6. Install the single-pillar insulator with a metal sealing cover on the external hand hole of the GIL pipe, and fasten the short conductive rod with the top insert of the single-pillar insulator with bolts;
步骤7、将粒子捕捉器安装在单支柱绝缘子附近，并对GIL内部进行清洁，完成一个GIL设备标准单元；Step 7. Install the particle trap near the single-pillar insulator and clean the inside of the GIL to complete a standard unit of GIL equipment;
步骤8、将多个GIL设备标准单元对接起来，延长气室长度；Step 8. Connect multiple GIL equipment standard units to extend the length of the air chamber;
步骤9、将GIL设备气室抽真空、充SF6气体，实现基于新型内部结构的GIL设备的组装，GIL管道的外壳形变量靠短导电杆触头座吸收，不影响滑动三支柱绝缘子。Step 9. Vacuum the gas chamber of the GIL device and fill it with SF6 gas to realize the assembly of the GIL device based on the new internal structure. The shell deformation of the GIL pipe is absorbed by the short conductive rod contact seat, which does not affect the sliding three-pillar insulator.
上述实施例只是为了说明本发明的技术构思及特点，其目的是在于让本领域内的普通技术人员能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡是根据本发明内容的实质所做出的等效的变化或修饰，都应涵盖在本发明的保护范围内。The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those of ordinary skill in the art to understand the content of the present invention and implement them accordingly, and should not limit the protection scope of the present invention. All equivalent changes or modifications made according to the essence of the present invention should be covered by the protection scope of the present invention.

Claims (7)

  1. 一种基于新型内部结构的GIL设备标准单元，其特征在于：包括GIL管道、单支柱绝缘子组件、长导电杆和滑动三支柱绝缘子组件；长导电杆的至少一端采用单支柱绝缘子组件支撑，长导电杆的中部采用至少一个滑动三支柱绝缘子组件支撑。A standard unit of GIL equipment based on a new internal structure, which is characterized by: includes a GIL pipe, a single-pillar insulator assembly, a long conductive rod and a sliding three-pillar insulator assembly; at least one end of the long conductive rod is supported by a single-pillar insulator assembly, which is long conductive The middle of the rod is supported by at least one sliding three-pillar insulator assembly.
  2. 根据权利要求1所述的一种基于新型内部结构的GIL设备标准单元，其特征在于：所述的GIL管道的长度为12～18m。The GIL equipment standard unit based on a new internal structure according to claim 1, wherein the length of the GIL pipe is 12-18m.
  3. 根据权利要求1所述的一种基于新型内部结构的GIL设备标准单元，其特征在于：所述的单支柱绝缘子组件包括单支柱绝缘子、短导电杆和金属密封盖板；短导电杆的两侧均设置有用于与长导电杆插配连接的触头座，且长导电杆***触头座后可沿轴向来回移动；单支柱绝缘子的顶部通过嵌件与短导电杆中部连接，底部通过嵌件与金属密封盖板连接；金属密封盖板安装在GIL管道外置手孔上。A GIL equipment standard unit based on a new internal structure according to claim 1, characterized in that: the single-pillar insulator assembly includes a single-pillar insulator, a short conductive rod and a metal sealing cover; both sides of the short conductive rod All are provided with a contact base for mating connection with a long conductive rod, and the long conductive rod can move back and forth in the axial direction after being inserted into the contact base; The parts are connected with the metal sealing cover plate; the metal sealing cover plate is installed on the external hand hole of the GIL pipe.
  4. 根据权利要求1所述的一种基于新型内部结构的GIL设备标准单元，其特征在于：所述的金属密封盖板中心距离GIL管道端部300mm，并在单支柱绝缘子附近设置粒子捕捉器。The GIL equipment standard unit based on a new internal structure according to claim 1, wherein the center of the metal sealing cover plate is 300 mm away from the end of the GIL pipe, and a particle trap is arranged near the single-pillar insulator.
  5. 根据权利要求3或4所述的一种基于新型内部结构GIL设备标准单元，其特征在于：所述的长导电杆***触头座深度变化设置为±40mm。The standard unit of GIL equipment based on the new internal structure according to claim 3 or 4, characterized in that: the depth variation of the long conductive rod inserted into the contact base is set to ±40mm.
  6. 根据权利要求1所述的一种基于新型内部结构的GIL设备标准单元，其特征在于：所述的滑动三支柱绝缘子组件包括滑动三支柱绝缘子和粒子捕捉器；滑动三支柱绝缘子的支撑腿按照120°布置，中心设置有铝套嵌件，铝套嵌件与长导电杆采用焊接或压接固定，滑动三支柱绝缘子的其中2个支撑腿设置有滚轮，另一个支撑腿设置有接地电极，粒子捕捉器设置在滑动三支柱绝缘子四周。A GIL equipment standard unit based on a new internal structure according to claim 1, characterized in that: the sliding three-pillar insulator assembly includes a sliding three-pillar insulator and a particle trap; the supporting legs of the sliding three-pillar insulator are in accordance with 120 ° Arrangement, the center is provided with an aluminum sleeve insert. The aluminum sleeve insert and the long conductive rod are fixed by welding or crimping. Two of the supporting legs of the sliding three-pillar insulator are equipped with rollers, and the other supporting leg is equipped with a ground electrode. The catcher is arranged around the sliding three-pillar insulator.
  7. 一种利用权利要求1-6之一的GIL设备标准单元实现外壳形变不影响滑动三支柱绝缘子性能的方法，其特征在于：包括如下步骤：A method for using the GIL equipment standard unit of any one of claims 1-6 to realize that the deformation of the housing does not affect the performance of the sliding three-pillar insulator, characterized in that it comprises the following steps:
    步骤1、生产滑动三支柱绝缘子组件，将三支柱绝缘子环氧材料与中心铝套和底部嵌件浇注一起，在滑动三支柱绝缘子四周设置粒子捕捉器，并在其中2个支撑腿底部嵌件安装滑轮，另一个支撑腿底部嵌件安装接地电极；Step 1. Producing sliding three-pillar insulator assembly, pouring the epoxy material of the three-pillar insulator together with the central aluminum sleeve and the bottom insert, set up particle traps around the sliding three-pillar insulator, and install the bottom inserts on two of the supporting legs Pulley, the bottom insert of the other support leg is equipped with a ground electrode;
    步骤2、生产单支柱绝缘子组件，将单支柱绝缘子环氧材料与顶部和底部嵌件浇注一起，并利用螺栓将金属密封盖板与单支柱绝缘子底部嵌件紧固连接，在短导电杆的两端安装触头座；Step 2. Production of single-pillar insulator components, pouring single-pillar insulator epoxy material with the top and bottom inserts, and use bolts to fasten the metal sealing cover plate and single-pillar insulator bottom inserts. Mount the contact base at the end;
    步骤3、将滑动三支柱绝缘子组件通过焊接或压接固定在长导电杆上；Step 3. Fix the sliding three-pillar insulator assembly on the long conductive rod by welding or crimping;
    步骤4、将带滑动三支柱绝缘子组件的长导电杆推送至GIL管道内部；Step 4. Push the long conductive rod with the sliding three-pillar insulator assembly into the GIL pipeline;
    步骤5、将短导电杆插接至长导电杆一端；Step 5. Insert the short conductive rod to one end of the long conductive rod;
    步骤6、将带金属密封盖板的单支柱绝缘子安装在GIL管道外置手孔上，并利用螺栓将短导电杆与单支柱绝缘子的顶部嵌件紧固；Step 6. Install the single-pillar insulator with a metal sealing cover on the external hand hole of the GIL pipe, and fasten the short conductive rod with the top insert of the single-pillar insulator with bolts;
    步骤7、将粒子捕捉器安装在单支柱绝缘子附近，并对GIL内部进行清洁，完成一个GIL设备标准单元；Step 7. Install the particle trap near the single-pillar insulator and clean the inside of the GIL to complete a standard unit of GIL equipment;
    步骤8、将多个GIL设备标准单元对接起来，延长气室长度；Step 8. Connect multiple GIL equipment standard units to extend the length of the air chamber;
    步骤9、将GIL设备气室抽真空、充SF6气体，实现基于新型内部结构的GIL设备的组装，GIL管道的外壳形变量靠短导电杆触头座吸收，不影响滑动三支柱绝缘子。Step 9. Vacuum the gas chamber of the GIL device and fill it with SF6 gas to realize the assembly of the GIL device based on the new internal structure. The shell deformation of the GIL pipe is absorbed by the short conductive rod contact seat, which does not affect the sliding three-pillar insulator.
PCT/CN2020/115573 2020-03-20 2020-09-16 Gil-apparatus standard unit employing novel internal structure, and implementation method WO2021184708A1 (en)

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