WO2018129814A1 - 一种抗风型复合绝缘子及其模具 - Google Patents

一种抗风型复合绝缘子及其模具 Download PDF

Info

Publication number
WO2018129814A1
WO2018129814A1 PCT/CN2017/078819 CN2017078819W WO2018129814A1 WO 2018129814 A1 WO2018129814 A1 WO 2018129814A1 CN 2017078819 W CN2017078819 W CN 2017078819W WO 2018129814 A1 WO2018129814 A1 WO 2018129814A1
Authority
WO
WIPO (PCT)
Prior art keywords
umbrella
wind
composite insulator
resistant composite
insulator
Prior art date
Application number
PCT/CN2017/078819
Other languages
English (en)
French (fr)
Inventor
贾志东
王希林
王言
雷云泽
周军
丁玉剑
邓桃
黄瑞平
邓禹
Original Assignee
清华大学深圳研究生院
中国电力科学研究院
国家电网公司
国网湖北省电力公司
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 清华大学深圳研究生院, 中国电力科学研究院, 国家电网公司, 国网湖北省电力公司 filed Critical 清华大学深圳研究生院
Publication of WO2018129814A1 publication Critical patent/WO2018129814A1/zh

Links

Images

Classifications

    • 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
    • H01B17/02—Suspension insulators; Strain insulators
    • H01B17/04—Chains; Multiple chains

Definitions

  • the invention relates to high voltage and insulation technology, in particular to a wind resistant composite insulator and a mold thereof.
  • Composite insulators are commonly used in high-voltage transmission lines. They are commonly used in transmission line towers, high-voltage power line connection towers for fixing suspended conductors, and for electrically insulating between pole towers and high-voltage conductors.
  • the composite insulator includes a core rod, a sheath and a plurality of sheds, and the outer side of the core rod is bonded with an integrally formed sheath and an umbrella skirt.
  • the main material of the mandrel is glass fiber, and the material of the sheath and the shed is high temperature vulcanized silicone rubber. Silicone rubber has a low modulus of elasticity and is soft in texture, causing a large swing in a strong wind environment and eventually fatigue tearing.
  • the main object of the present invention is to make up for the deficiencies of the prior art, and to propose a wind-resistant composite insulator and a mold thereof, in particular to optimize structural parameters and an umbrella structure of a ⁇ 1100 kV wind-resistant composite insulator for a strong wind region.
  • the structural parameters of the wind-resistant composite insulator take values according to the value range of the insulator structure.
  • a wind-resistant composite insulator the value range of the insulator structure at a wind speed of 40 m/s is shown in Table 2:
  • the structural parameters of the wind-resistant composite insulator take values according to the value range of the insulator structure.
  • a wind-resistant composite insulator the value range of the insulator structure at a wind speed of 30 m/s is shown in Table 3:
  • the structural parameters of the wind-resistant composite insulator take values according to the value range of the insulator structure.
  • the maximum value of the pitch of the umbrella is obtained by the common creepage distance of the insulator unit and the height of the structure;
  • the repeating unit is an umbrella skirt
  • the umbrella diameter is d
  • the umbrella inclination angle is ⁇
  • the umbrella edge thickness is t
  • the umbrella spacing is S
  • the root chamfering radius is r
  • s is a single-piece umbrella.
  • the skirt does not contain the radial length of the root and the edge
  • p1, p2, P are intermediate parameters
  • the relationship between the single creep distance and other structural parameters is calculated by the following formula:
  • the maximum value of the umbrella spacing is obtained based on the constraint relationship between the height of the structure and the creepage distance.
  • the minimum value of the pitch of the umbrella is obtained according to the IEC standard IEC-TS60815-2.
  • the isometric symmetrical umbrella type product structure has a parachute spacing of 44mm, a core rod inner diameter of 30mm, an outer diameter of 43mm, preferably 245 sheds;
  • the large and large umbrella type product structure has an umbrella spacing 42mm, the inner diameter of the mandrel is 30mm, the outer diameter is 43mm, preferably has 275 sheds;
  • the small and medium size umbrella type structure has a parachute spacing of 44mm, the inner diameter of the mandrel is 30mm, the outer diameter is 43mm, preferably has 324 sheds.
  • the isometric symmetrical umbrella type product structure has an umbrella pitch of 47mm, a core rod inner diameter of 31mm, an outer diameter of 41mm, preferably 236 sheds;
  • the large and large umbrella type product structure has an umbrella pitch 43mm, the inner diameter of the mandrel is 31mm, the outer diameter is 41mm, preferably has 268 sheds;
  • the small and medium size umbrella type structure has a parachute spacing of 38mm, the inner diameter of the mandrel is 31mm, the outer diameter is 41mm, preferably has 333 sheds.
  • the equal-diameter symmetrical umbrella type product structure has an umbrella pitch of 49 mm, a core rod inner diameter of 30 mm, an outer diameter of 43 mm, preferably 232 sheds, and a large-sized umbrella type product structure having an umbrella pitch.
  • 43mm the inner diameter of the mandrel is 30mm
  • the outer diameter is 43mm, preferably has 268 sheds
  • the small and medium size umbrella structure has a umbrella spacing of 49mm
  • the inner diameter of the mandrel is 30mm
  • the outer diameter is 43mm, preferably 309 sheds.
  • the wind-resistant composite insulator is a ⁇ 1100 kV wind-resistant composite insulator.
  • a mold for a wind-resistant composite insulator configured to adapt to a range of values of an insulator structure of the wind-resistant composite insulator.
  • the invention provides a wind-resistant composite insulator, fills the blank of existing national standards and industry guidelines, and gives a range of values of structural parameters of the ⁇ 1100kV class wind-resistant composite insulator for multiple wind speeds, and significantly optimizes the area for strong winds.
  • Structural parameters of the ⁇ 1100kV wind-resistant composite insulator and the umbrella structure This range quantifies the threshold values for each structural parameter and can be used to guide the design and processing of related products.
  • the umbrella structure proposed by the present invention has been effectively improved in performance compared with the conventional umbrella structure after being tested by the wind tunnel test, and has broad market prospects. Therefore, the selection range of the structural parameters of the ⁇ 1100kV wind-resistant composite insulator for the strong wind region and the umbrella structure provided by the invention have significant advantages, fill the gap of the industry, and have strong application value and market prospect.
  • Fig. 1a, Fig. 1b and Fig. 1c are respectively a mold structure diagram of three sheds at a wind speed of 50 m/s;
  • 2a, 2b and 2c are respectively a mold structure diagram of three sheds at a wind speed of 40 m/s;
  • Figure 3a, Figure 3b and Figure 3c are the die structure diagrams of three sheds at 30m/s wind speed level respectively.
  • Figure 4 is a structural diagram of an isometric symmetrical umbrella type product of 50 m/s wind speed grade
  • Figure 5 is a structural diagram of a 50m/s wind speed grade large umbrella type product
  • Figure 6 is a structural diagram of a small and large umbrella type product with a wind speed rating of 50 m/s;
  • Figure 7 is a structural diagram of an isometric symmetrical umbrella type product of 40 m/s wind speed grade
  • Figure 8 is a structural diagram of a large umbrella type product with a wind speed rating of 40 m/s;
  • Figure 9 is a structural view of a small umbrella type product of 40m/s wind speed grade
  • Figure 10 is a structural diagram of an isometric symmetrical umbrella type product at a wind speed of 30 m/s;
  • Figure 11 is a structural view of a large umbrella type product with a wind speed rating of 30 m/s;
  • Figure 12 is a structural view of a small umbrella type product of a size of 30 m/s wind speed
  • embodiments of the present invention provide ⁇ 1100 kV wind-resistant composite insulators for high wind regions with optimized structural parameters.
  • the present invention is directed to three levels of strong wind regions, 30 m/s, 40 m/s, and 50 m/s, respectively.
  • the present invention provides a range of structural parameters for the isometric symmetric umbrella type and the large size umbrella type.
  • the structural parameters include the umbrella inclination of the large shed, the protrusion of the umbrella, the thickness of the edge of the umbrella and the radius of the chamfer; for the large and large umbrella type, the present invention also gives the threshold of the extension ratio of the small umbrella skirt and the large umbell skirt and small Umbrella skirt tilt angle and umbrella edge thickness threshold.
  • the range of the pitch of the umbrella is determined according to the creepage distance, the structural height and the relevant IEC standard, that is, the maximum value of the umbrella spacing is determined according to the creepage distance and the height of the structure; the pitch of the umbrella can be determined according to the IEC-TS60815-2 standard. The minimum value. Referring to Figures 4 through 12, nine preferred umbrella structures are also provided in embodiments of the present invention.
  • Tables 1, 2, and 3 give the range of values for all structural parameters required for the composite insulator shed except for the pitch of the umbrella.
  • the maximum value of the pitch of the umbrella is obtained by the joint creepage distance of the insulator unit and the height of the structure.
  • the unit creepage distance is related to the umbrella type and refers to the creepage distance corresponding to a repeating unit.
  • a repeating unit of large and small umbrella type is a large umbrella skirt and a small umbrella skirt
  • a repeating unit of small and small umbrella type is a large umbrella skirt, a small umbrella skirt, a middle umbrella skirt and a small umbrella skirt.
  • the equal-diameter symmetrical umbrella type has a repeating unit of a shed.
  • the umbrella diameter be d
  • the umbrella inclination angle be ⁇
  • the umbrella edge thickness be t
  • the umbrella spacing be S
  • the root chamfering radius be r
  • s be the radial length of the single piece umbrella skirt without the root and the edge.
  • the height of the structure is limited by the actual structure of the UHV transmission tower.
  • the height of the composite insulator structure of the ⁇ 1100kV transmission tower can be selected to be 12000mm.
  • the constraint relationship between the structural height and the creepage distance can be converted into a relationship only regarding the certain pitch value.
  • the maximum value of the umbrella spacing can be obtained
  • the minimum value of the pitch of the umbrella can be obtained by referring to the IEC standard IEC-TS60815-2.
  • embodiments of the present invention provide a preferred threshold table for structural parameters of a ⁇ 1100 kV wind-resistant composite insulator at multiple wind speed levels, wherein (1) the composite insulators of different umbrella types have different wind resistance properties. Simple structure, shed The symmetrical umbrella type has strong wind resistance, and the umbrella type has a complicated umbrella type wind resistance. (2) The preferred threshold values for structural parameters such as large umbrella skirt inclination, umbrella edge thickness, umbrella extension and root chamfer radius are given for three wind speed classes of 30m/s, 40m/s and 50m/s. (3) The large shed skirt has a strong shielding effect on the adjacent small shed skirts. The umbrella extensions should not exceed 0.75, and give the preferred threshold values of the structural parameters such as the small awning umbrella inclination and the thickness of the umbrella edge.
  • embodiments of the present invention provide nine different types of ⁇ 1100kV wind-resistant composite insulator products suitable for different wind speed levels, designed for wind speed grades of 30m/s, 40m/s and 50m/s, respectively.
  • the following includes three types of equal-diameter symmetrical umbrellas, large and small umbrellas, and small and medium-sized umbrellas, as shown in Figure 4-12.
  • the model of each umbrella type of different umbrella type under each wind speed grade is uniform, the difference is that the arrangement of the umbrella skirt is different.
  • the structural information included in the umbrella type is: a mold structure diagram of a single umbrella skirt; an arrangement of the umbrella skirt; and an overall number of the umbrella skirts.
  • the isometric symmetrical umbrella type product structure has a parachute spacing of 44mm, a mandrel inner diameter of 30mm, an outer diameter of 43mm, preferably 245 sheds;
  • the structure of the product has a parachute spacing of 42mm, an inner diameter of the mandrel of 30mm, an outer diameter of 43mm, preferably 275 sheds;
  • the small and medium size umbrella structure has an umbrella spacing of 44mm, the inner diameter of the mandrel is 30mm, and the outer diameter is 43mm. It has 324 sheds.
  • the isometric symmetrical umbrella type product structure has an umbrella pitch of 47 mm, a core rod inner diameter of 31 mm, an outer diameter of 41 mm, preferably 236 sheds, and a large umbrella type.
  • the product structure has a parachute spacing of 43mm, a mandrel inner diameter of 31mm, an outer diameter of 41mm, preferably 268 sheds; a small and medium umbrella type product structure with a parachute spacing of 38mm, a core rod inner diameter of 31mm, an outer diameter of 41mm, preferably It has 333 umbrella skirts.
  • the isometric symmetrical umbrella type product structure has an umbrella pitch of 49 mm, a core rod inner diameter of 30 mm, an outer diameter of 43 mm, preferably 232 sheds, and a large umbrella type.
  • the product structure has a parachute spacing of 43mm, a mandrel inner diameter of 30mm, an outer diameter of 43mm, preferably 268 sheds; a small and medium umbrella type product structure with an umbrella spacing of 49mm, a core rod inner diameter of 30mm, an outer diameter of 43mm, preferably It has 309 sheds.
  • an embodiment of the present invention also provides a shed skirt mold for a wind-resistant composite insulator that is configured to accommodate the range of values of the insulator structure of the wind-resistant composite insulator.
  • the shed skirt and jacket material is high temperature vulcanized silicone rubber. Before the production of the product, the silicone rubber material shall be inspected according to the following standards:
  • the product processing process may use an extrusion umbrella process or a one-shot molding process, preferably using a one-shot molding process.

Abstract

本发明公开了一种抗风型复合绝缘子及其模具，针对强风区域的±1100kV抗风型复合绝缘子结构参数取值范围给出了优化设计并给出了9种优选的伞型结构。本发明针对强风区域的±1100kV抗风型复合绝缘子的结构参数以及伞型结构进行了优化，对结构参数的阈值作了量化规定，能很好指导相关产品的设计与加工，有效地填补了行业空白，具有极强的应用价值和市场前景。

Description

一种抗风型复合绝缘子及其模具 【技术领域】
本发明涉及高电压与绝缘技术，特别是一种抗风型复合绝缘子及其模具。
【背景技术】
复合绝缘子是高压输电线路中经常用到的器件，常见于输电线路杆塔，高压电线连接塔，用于固定悬挂导线，以及在杆塔和高压导线之间起电气绝缘的作用。复合绝缘子包括芯棒、护套和多个伞裙，芯棒的外侧粘结有一体成型的护套和伞裙。其中芯棒主要材料为玻璃纤维，护套和伞裙的材料为高温硫化硅橡胶。硅橡胶具备较低的弹性模量，质地柔软，在强风环境中会发生大幅摆动并最终疲劳撕裂的事故。
我国西北地区存在多个强风区，例如位于乌鲁木齐与吐鲁番之间著名的“三十里风区”，其在10米高度处平均最高风速达42m/s。已有750kV输电杆塔平均呼称高46m处的最高风速达到50m/s，并且曾经出现过因强风环境导致复合绝缘子伞裙撕裂，最终发生闪络的严重事故。在建±1100kV特高压直流输电线路通过多个强风区，对绝缘子的抗风能力提出了较高要求。
相关国家标准和行业导则中并未包括针对强风环境中的±1100kV复合绝缘子的选型设计内容，国内外市场上也未曾出现±1100kV的抗风型复合绝缘子。
【发明内容】
本发明的主要目的在于，弥补现有技术的不足，提出一种抗风型复合绝缘子及其模具，尤其是优化针对强风区域的±1100kV抗风型复合绝缘子的结构参数以及伞型结构。
一种抗风型复合绝缘子，50m/s风速下的绝缘子结构取值范围如表1：
表1 50m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000001
Figure PCTCN2017078819-appb-000002
所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
一种抗风型复合绝缘子，40m/s风速下的绝缘子结构取值范围如表2：
表2 40m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000003
所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
一种抗风型复合绝缘子，30m/s风速下的绝缘子结构取值范围如表3：
表3 30m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000004
所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
进一步地：伞间距的最大值由绝缘子单位爬电距离和结构高度共同约束取得；
对于等径对称伞型，其重复单位为一片伞裙，设其伞径为d，伞倾角为α，伞边缘厚度为t，伞间距是S，根倒角半径是r，s是单片伞裙不含根部和边缘的径向长度，p1，p2，P为中间参数，由以下式子计算单片爬距同其他结构参量的关系：
Figure PCTCN2017078819-appb-000005
Figure PCTCN2017078819-appb-000006
Figure PCTCN2017078819-appb-000007
P＝2(p1+p2)          (4)
令整串绝缘子的片数为n，构成一个关于结构高度与爬电距离的约束关系如下：
n＝45000/P         (5)
nS≤12000          (6)
Figure PCTCN2017078819-appb-000008
确定伞倾角、伞边缘厚度、伞径和根倒角半径后，基于结构高度与爬电距离的约束关系，得到伞间距的最大取值。
进一步地：伞间距的最小取值根据IEC标准IEC-TS60815-2得到。
进一步地：针对50m/s风速等级，等径对称伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有245个伞裙；大小大伞型产品结构构具有伞间距42mm，芯棒内径为30mm，外径为43mm，优选具有275个伞裙；大小中小大伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有324个伞裙。
进一步地：针对40m/s风速等级，等径对称伞型产品结构具有伞间距47mm，芯棒内径为31mm，外径为41mm，优选具有236个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为31mm，外径为41mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距38mm，芯棒内径为31mm，外径为41mm，优选具有333个伞裙。
进一步地：针对30m/s风速等级，等径对称伞型产品结构具有伞间距49mm，芯棒内径为30mm，外径为43mm，优选具有232个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为30mm，外径为43mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距49mm，芯棒内径为30mm，外径为43mm，优选具有309个伞裙。
进一步地：所述抗风型复合绝缘子为±1100kV抗风型复合绝缘子。
一种抗风型复合绝缘子的模具，其经配置以适应于所述的抗风型复合绝缘子的绝缘子结构取值范围。
本发明的有益效果有：
本发明提供了一种抗风型复合绝缘子，填补现有国家标准和行业导则的空白，给出针对多风速的±1100kV等级抗风型复合绝缘子结构参数取值范围，显著优化了针对强风区域的±1100kV抗风型复合绝缘子的结构参数以及伞型结构。该范围对每个结构参数的阈值作了量化规定，能很好指导相关产品的设计与加工。另外，本发明提出的伞型结构，经过风洞试验检验，相比传统伞型结构在性能上获得有效提升，具有广阔的市场前景。因此，本发明提供的针对强风区域的±1100kV抗风型复合绝缘子结构参数选择范围以及伞型结构具有显著优势，填补了行业空白，具有极强的应用价值和市场前景。
【附图说明】
图1a、图1b和图1c分别是50m/s风速等级下三种伞裙的模具结构图；
图2a、图2b和图2c分别是40m/s风速等级下三种伞裙的模具结构图；
图3a、图3b和图3c分别是30m/s风速等级下三种伞裙的模具结构图
图4是50m/s风速等级等径对称伞型产品结构图；
图5是50m/s风速等级大小大伞型产品结构图；
图6是50m/s风速等级大小中小大伞型产品结构图；
图7是40m/s风速等级等径对称伞型产品结构图；
图8是40m/s风速等级大小大伞型产品结构图；
图9是40m/s风速等级大小中小大伞型产品结构图；
图10是30m/s风速等级等径对称伞型产品结构图；
图11是30m/s风速等级大小大伞型产品结构图；
图12是30m/s风速等级大小中小大伞型产品结构图；
【具体实施方式】
以下对本发明的实施方式作详细说明。应该强调的是，下述说明仅仅是示例性的，而不是为了限制本发明的范围及其应用。
参阅图1a至图3c，本发明的实施例提供针对强风区域的±1100kV抗风型复合绝缘子，其具有优化的结构参数。本发明主要针对三个等级的强风区域，分别是30m/s、40m/s和50m/s。针对每种风速等级，本发明给出了关于等径对称伞型和大小大伞型的结构参数选择范围。结构参数包括大伞裙的伞倾角、伞伸出、伞边缘厚度和跟倒角半径；对于大小大伞型，本发明还给出了小伞裙和大伞裙伞伸出比例的阈值以及小伞裙伞倾角和伞边缘厚度的阈值。伞间距的取值范围根据爬电距离、结构高度和相关IEC标准确定，即根据爬电距离和结构高度的约束确定伞间距最大取值；可根据IEC-TS60815-2标准的规定确定伞间距的最小取值。参阅图4至图12，本发明实施例还提供9种优选的伞型结构。
本发明的多种实施例中，提供的结构参数取值范围如表1、2、3所示：
表1 50m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000009
Figure PCTCN2017078819-appb-000010
表2 40m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000011
表3 30m/s风速下结构取值范围
Figure PCTCN2017078819-appb-000012
Figure PCTCN2017078819-appb-000013
表1、2、3给出了除伞间距外复合绝缘子伞裙所需所有结构参数的取值范围。
伞间距的最大值由绝缘子单位爬电距离和结构高度共同约束取得。单位爬电距离同伞型有关，指的是一个重复单位对应的爬电距离。例如大小大伞型的一个重复单位是一个大伞裙和一个小伞裙；大小中小大伞型的一个重复单位是一个大伞裙、一个小伞裙、一个中伞裙和一个小伞裙。
以等径对称伞型为例，其重复单位为一片伞裙。设其伞径为d，伞倾角为α，伞边缘厚度为t，伞间距是S，根倒角半径是r，s是单片伞裙不含根部和边缘的径向长度。则可由以下公式计算单片爬距同其他结构参量的关系：
Figure PCTCN2017078819-appb-000014
Figure PCTCN2017078819-appb-000015
Figure PCTCN2017078819-appb-000016
P＝2(p1+p2)          (4)
结构高度受特高压输电杆塔的实际结构限制，查阅资料得±1100kV输电杆塔复合绝缘子结构高度可以选择为12000mm。
令整串绝缘子的片数为n，则可以构成一个关于结构高度与爬电距离的约束关系。
n＝45000/P          (5)
nS≤12000          (6)
Figure PCTCN2017078819-appb-000017
伞倾角、伞边缘厚度、伞径和根倒角半径等结构参数确定后，将其带入即可将结构高度与爬电距离的约束关系转换为仅关于伞间距关于某个确定数值的关系，可得到伞间距的最大取值
伞间距的最小取值可以查阅IEC标准IEC-TS60815-2得到。
如上所述，本发明的实施例提供了多风速等级下±1100kV抗风型复合绝缘子结构参数的优选阈值表，其中(1)不同伞型的复合绝缘子抗风性能不同。结构简单、伞裙 分布对称的伞型具有较强的抗风性能，伞裙布置复杂的伞型抗风性能较差。(2)给出了针对30m/s、40m/s和50m/s三种风速等级下，关于大伞裙伞倾角、伞边缘厚度、伞伸出和根倒角半径等结构参数的优选阈值。(3)大伞裙对相邻小伞裙有较强遮挡作用，二者伞伸出不应大于0.75，并给出小伞裙伞倾角、伞边缘厚度等结构参数的优选阈值。
另外，本发明的实施例提供适用于不同风速等级下，9种不同类型的±1100kV抗风型复合绝缘子产品，分别针对30m/s、40m/s和50m/s风速等级设计，每种风速等级下包括等径对称伞型、大小大伞型和大小中小大伞型三种，如图4-图12所示。其中，每种风速等级下不同伞型单个伞裙的型号是统一的，区别在于伞裙的布置方式不同。优选伞型包括的结构信息有：单个伞裙的模具结构图；伞裙的布置方式；伞裙的整体数量。
如图4至图6所示，针对50m/s风速等级，等径对称伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有245个伞裙；大小大伞型产品结构构具有伞间距42mm，芯棒内径为30mm，外径为43mm，优选具有275个伞裙；大小中小大伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有324个伞裙。
如图7至图9所示，针对40m/s风速等级，等径对称伞型产品结构具有伞间距47mm，芯棒内径为31mm，外径为41mm，优选具有236个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为31mm，外径为41mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距38mm，芯棒内径为31mm，外径为41mm，优选具有333个伞裙。
如图10至图12所示，针对30m/s风速等级，等径对称伞型产品结构具有伞间距49mm，芯棒内径为30mm，外径为43mm，优选具有232个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为30mm，外径为43mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距49mm，芯棒内径为30mm，外径为43mm，优选具有309个伞裙。
所有优选伞型的实际样品并已经通过风洞试验的检测。
参阅图1a至图3c，本发明的实施例还提供抗风型复合绝缘子的伞裙模具，其经配置以适应于所述的抗风型复合绝缘子的绝缘子结构取值范围。
产品加工方式
伞裙和护套材料为高温硫化硅橡胶。产品生产前，应按照以下标准对硅橡胶材料进行检验：
应依据GB13934-2006-T的规定进行屈挠龟裂和裂口增长的测定；
应依据GB/T1687-93的规定进行压缩屈挠试验；
应依据DL 376-2010-T的规定进行电气性能和相关机械性能的检验；
应依据GB/T 9867-2008的规定进行耐磨性能的测定；
通过以上测定后，方可用来生产加工抗风型绝缘子产品。
产品加工工艺可使用挤包穿伞工艺或一次注模成型工艺，优选使用一次注模成型工艺。
以上内容是结合具体/优选的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，其还可以对这些已描述的实施方式做出若干替代或变型，而这些替代或变型方式都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种抗风型复合绝缘子，其特征在于，50m/s风速下的绝缘子结构取值范围如表1：
    表1 50m/s风速下结构取值范围
    Figure PCTCN2017078819-appb-100001
    所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
  2. 一种抗风型复合绝缘子，其特征在于，40m/s风速下的绝缘子结构取值范围如表2：
    表2 40m/s风速下结构取值范围
    Figure PCTCN2017078819-appb-100002
    Figure PCTCN2017078819-appb-100003
    所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
  3. 一种抗风型复合绝缘子，其特征在于，30m/s风速下的绝缘子结构取值范围如表3：
    表3 30m/s风速下结构取值范围
    Figure PCTCN2017078819-appb-100004
    所述抗风型复合绝缘子的结构参数按照所述绝缘子结构取值范围取值。
  4. 如权利要求1至3任一项所述的抗风型复合绝缘子，其特征在于，
    伞间距的最大值由绝缘子单位爬电距离和结构高度共同约束取得；
    对于等径对称伞型，其重复单位为一片伞裙，设其伞径为d，伞倾角为α，伞边缘厚度为t，伞间距是S，根倒角半径是r，s是单片伞裙不含根部和边缘的径向长度，p1，p2，P为中间参数，由以下式子计算单片爬距同其他结构参量的关系：
    Figure PCTCN2017078819-appb-100005
    Figure PCTCN2017078819-appb-100006
    Figure PCTCN2017078819-appb-100007
    P＝2(p1+p2)              (4)
    令整串绝缘子的片数为n，构成一个关于结构高度与爬电距离的约束关系如下：
    n＝45000/P              (5)
    nS≤12000              (6)
    Figure PCTCN2017078819-appb-100008
    确定伞倾角、伞边缘厚度、伞径和根倒角半径后，基于结构高度与爬电距离的约束关系，得到伞间距的最大取值。
  5. 如权利要求1至4任一项所述的抗风型复合绝缘子，其特征在于，伞间距的最小取值根据IEC标准IEC-TS60815-2得到。
  6. 如权利要求1至5任一项所述的抗风型复合绝缘子，其特征在于，针对50m/s风速等级，等径对称伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有245个伞裙；大小大伞型产品结构构具有伞间距42mm，芯棒内径为30mm，外径为43mm，优选具有275个伞裙；大小中小大伞型产品结构具有伞间距44mm，芯棒内径为30mm，外径为43mm，优选具有324个伞裙。
  7. 如权利要求1至5任一项所述的抗风型复合绝缘子，其特征在于，针对40m/s风速等级，等径对称伞型产品结构具有伞间距47mm，芯棒内径为31mm，外径为41mm，优选具有236个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为31mm，外径为41mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距38mm，芯棒内径为31mm，外径为41mm，优选具有333个伞裙。
  8. 如权利要求1至5任一项所述的抗风型复合绝缘子，其特征在于，针对30m/s风速等级，等径对称伞型产品结构具有伞间距49mm，芯棒内径为30mm，外径为43mm，优选具有232个伞裙；大小大伞型产品结构构具有伞间距43mm，芯棒内径为30mm，外径为43mm，优选具有268个伞裙；大小中小大伞型产品结构具有伞间距49mm， 芯棒内径为30mm，外径为43mm，优选具有309个伞裙。
  9. 如权利要求1至8任一项所述的抗风型复合绝缘子，其特征在于，所述抗风型复合绝缘子为±1100kV抗风型复合绝缘子。
  10. 一种抗风型复合绝缘子的模具，其特征在于，其经配置以适应于权利要求1至3所述的抗风型复合绝缘子的绝缘子结构取值范围。
PCT/CN2017/078819 2017-01-13 2017-03-30 一种抗风型复合绝缘子及其模具 WO2018129814A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710026480.2 2017-01-13
CN201710026480.2A CN106782933B (zh) 2017-01-13 2017-01-13 一种抗风型复合绝缘子及其模具

Publications (1)

Publication Number Publication Date
WO2018129814A1 true WO2018129814A1 (zh) 2018-07-19

Family

ID=58946611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/078819 WO2018129814A1 (zh) 2017-01-13 2017-03-30 一种抗风型复合绝缘子及其模具

Country Status (2)

Country Link
CN (1) CN106782933B (zh)
WO (1) WO2018129814A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112635136B (zh) * 2020-12-04 2022-06-24 福建汇达建筑工程有限公司 一种用于电力设备的绝缘柱

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08111129A (ja) * 1994-10-06 1996-04-30 Kinki Denki Kk 耐張碍子
CN2872556Y (zh) * 2006-02-10 2007-02-21 南方电网技术研究中心 具有空气动力学伞形设计的合成绝缘子
CN203085296U (zh) * 2012-12-06 2013-07-24 新疆电力公司 应用于大风区的新型抗强风型复合绝缘子
CN203882740U (zh) * 2014-06-19 2014-10-15 抚顺高科电瓷电气制造有限公司 大倾角伞型的电瓷绝缘子

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545056B (zh) * 2013-10-28 2016-08-24 新疆新能天宁电工绝缘材料有限公司 一种复合绝缘子伞形结构
CN103545057B (zh) * 2013-10-28 2017-03-15 新疆新能天宁电工绝缘材料有限公司 超特高压耐张复合绝缘子伞形结构
WO2015062001A1 (zh) * 2013-10-30 2015-05-07 清华大学深圳研究生院 一种基于固有频率的强风区复合绝缘子的选型方法及复合绝缘子
WO2015062000A1 (zh) * 2013-10-30 2015-05-07 清华大学深圳研究生院 一种基于结构参数的强风区复合绝缘子的选型方法及复合绝缘子

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08111129A (ja) * 1994-10-06 1996-04-30 Kinki Denki Kk 耐張碍子
CN2872556Y (zh) * 2006-02-10 2007-02-21 南方电网技术研究中心 具有空气动力学伞形设计的合成绝缘子
CN203085296U (zh) * 2012-12-06 2013-07-24 新疆电力公司 应用于大风区的新型抗强风型复合绝缘子
CN203882740U (zh) * 2014-06-19 2014-10-15 抚顺高科电瓷电气制造有限公司 大倾角伞型的电瓷绝缘子

Also Published As

Publication number Publication date
CN106782933A (zh) 2017-05-31
CN106782933B (zh) 2019-02-22

Similar Documents

Publication Publication Date Title
US20150136470A1 (en) Selection method for strong wind region composite insulator based on structure parameters, and composite insulator
Jiang et al. Predictive model for equivalent ice thickness load on overhead transmission lines based on measured insulator string deviations
US20150255194A1 (en) Selection method for strong wind region composite insulator based on intrinsic frequency, and composite insulator
CN109063393B (zh) 直线塔受力风险的评估方法
CN2872556Y (zh) 具有空气动力学伞形设计的合成绝缘子
WO2018129814A1 (zh) 一种抗风型复合绝缘子及其模具
CN201017728Y (zh) 特高压空心复合绝缘子
CN102592754A (zh) 一种复合盘式绝缘子
CN109408928A (zh) 一种v型绝缘子悬挂方式的优化方法
CN112580243A (zh) 一种输电线路脱冰跳跃动力响应模拟分析方法
CN209281910U (zh) 一种带薄绝缘的架空导线
CN209494292U (zh) 绝缘横担
CN208271671U (zh) 一种倾斜布置的异形复合绝缘子
CN204651071U (zh) 额定电压10kV碳纤维复合加强芯架空绝缘电缆
CN101114538A (zh) 一种复合绝缘子
CN203386544U (zh) 一种瓷复合绝缘子
CN103545057B (zh) 超特高压耐张复合绝缘子伞形结构
CN205542210U (zh) 一种动车组用高寒抗风沙柱式复合绝缘子
CN110444350A (zh) 一种架空导线的制作方法
Xie et al. Investigation on the failure analysis of crimped composite insulators used in “V” type string
CN202126892U (zh) 空心盘式复合绝缘子
CN202523492U (zh) 复合绝缘子
CN203179633U (zh) 电气化铁路用棒形柱式瓷聚合物复合绝缘子
CN205282201U (zh) 一种用于高压线路的绝缘子
CN2922077Y (zh) 强耐污型复合绝缘子

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17890916

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17890916

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17890916

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 02/01/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17890916

Country of ref document: EP

Kind code of ref document: A1