CN107731431B - 一种插接式绝缘套管 - Google Patents

一种插接式绝缘套管 Download PDF

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CN107731431B
CN107731431B CN201711000581.9A CN201711000581A CN107731431B CN 107731431 B CN107731431 B CN 107731431B CN 201711000581 A CN201711000581 A CN 201711000581A CN 107731431 B CN107731431 B CN 107731431B
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姚军
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Shanghai Datuo Energy Technology Co ltd
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Abstract

本发明公开了一种插接式绝缘套管,包括管体,所述管体的上端面上固定设置有插杆,所述管体的下端面上设置有与插杆相匹配的插孔,所述管体下端面内设置有供插杆移动的空腔,所述管体侧面设置有凸块,所述管体侧面铰接有盖板,所述盖板可翻转,所述盖板上开设有与凸块相匹配的通孔,所述盖板与凸块不在同一竖直线上,所述两根插接式绝缘套管可通过盖板与凸块实现位置的固定。本发明所述的绝缘套管之间连接方便且稳固,同时具有防水、耐高温、耐冲击的性能,绝缘性能好。

Description

一种插接式绝缘套管
技术领域
本发明涉及绝缘制品技术领域,特别是涉及一种插接式绝缘套管。
背景技术
绝缘套管为绝缘材料的一种,用来支持和固定母线与带电导体,并使带电导体间或导体与地面之间有足够的距离和绝缘。绝缘套管长度有限,在使用时经常需要将几段绝缘套管连接起来,但是现有的绝缘套管之间无法连接,必须通过胶带或者其他连接装置进行连接,导致绝缘套管在连接时出现连接不稳等问题,而且连接起来十分费时,影响工作效率。
发明内容
本发明所要解决的技术问题是,提供一种插接式绝缘套管,绝缘套管之间连接方便且稳固,同时具有防水、耐高温、耐冲击的性能,绝缘性能好。
为了解决以上技术问题,本发明的技术方案如下:
一种插接式绝缘套管,包括管体,所述管体的上端面上固定设置有插杆,所述管体的下端面上设置有与插杆相匹配的插孔,所述管体下端面内设置有供插杆移动的空腔,所述管体侧面设置有凸块,所述管体侧面铰接有盖板,所述盖板可翻转,所述盖板上开设有与凸块相匹配的通孔,所述盖板与凸块不在同一竖直线上,所述两根插接式绝缘套管可通过盖板与凸块实现位置的固定。
进一步的,所述凸块位于管体侧面的下部,所述盖板位于管体侧面的上部。
进一步的,所述管体包括防水层、绝缘层、耐高温层和外防护层,所述耐高温层位于绝缘层的外层,所述防水层位于耐高温层的外层,所述外防护层位于防水层的外层。
进一步的,所述防水层为聚氨酯树脂层。
进一步的,所述耐高温层为聚氯乙烯树脂层。
进一步的,所述外防护层为聚四氟乙烯层。
进一步的,所述绝缘层由以下重量份数的原料组成:65-70份聚氯乙烯、5-8份聚四氟乙烯、10-15份石棉、20-25份天然橡胶、10-13份甲基乙烯基硅橡胶、5-10份乙烯-醋酸乙烯共聚物、3-5份氢氧化铝、0.5-1份促进硫化剂、0.1-0.5份抗氧化剂。
进一步的,所述促进硫化剂为四硫化双五亚甲基秋兰姆。
进一步的,所述抗氧化剂为4-己基间苯二酚。
本发明还提供了一种绝缘层的制备方法,包括以下步骤:
S1:按重量份取65-70份聚氯乙烯、5-8份聚四氟乙烯、10-15份石棉、20-25份天然橡胶、10-13份甲基乙烯基硅橡胶、5-10份乙烯-醋酸乙烯共聚物,加入到电加热搅拌器中,将搅拌器内温度调至100-120℃,以350-400r/min的转速搅拌5-10分钟;
S2:将搅拌好的混合料放入单螺杆挤出机中,造粒得到树脂原料;
S3:将树脂原料放入密炼机中,密炼3-5分钟,放入之前将密炼机预热至60-65℃;
S4:将3-5份氢氧化铝、0.5-1份促进硫化剂、0.1-0.5份抗氧化剂加入到密炼机中,进行混炼,混炼时间为5-10分钟,得到混炼胶料;
S5:将得到的混炼胶料进行压延成型,得到绝缘层。
本发明的有益效果是:
(1)本发明所述的一种插接式绝缘套管,管体上端面设置有插杆,管体下端面设置有与插杆相匹配的插孔和内部空腔,通过将插杆插入插孔中,然后旋转,即可实现两根绝缘套管之间上下的位置固定;当旋转至上方绝缘套管的凸块与下方绝缘套管的盖板位于同一竖直线上时,翻转盖板,使凸块位于盖板的通孔内,实现上下两根绝缘套管之间角度的固定,不会发生相对旋转,通过将两根绝缘套管上下位置以及角度的固定,实现绝缘套管之间的稳固连接,不会出现脱落或松动;
(2)本发明中,绝缘套管包括防水层、绝缘层、耐高温层和外防护层,采用聚氨酯树脂层作为防水层,可以有效地避免绝缘套管内的导体受到水分的影响;耐高温层采用聚氯乙烯树脂层,可以避免高温对绝缘层绝缘性能的产生的影响;外防护层采用聚四氟乙烯层,在提高套管的防护能力的同时还可以提高绝缘性能,有效地延长了使用寿命;
(3)本发明中,将具有弹性的乙烯-醋酸乙烯共聚物、天然橡胶、甲基乙烯基硅橡胶和具有热塑性的聚氯乙烯进行混合,不仅能调节材料的弹性和柔韧性,还可以改善聚氯乙烯与硅橡胶之间的相容性,使制得的绝缘层具有良好的弹性和柔韧性,使绝缘套管具有一定的抗冲击性,对套管内的导体起到了良好的保护作用;在原料中加入石棉,在提高绝缘层绝缘性能的同时,还提高了绝缘层的比热容系数,导体发热后绝缘层吸热后升温幅度很小,避免升温对绝缘层的绝缘效果产生影响;加入氢氧化铝,起到阻燃效果的同时还可以降低成本;采用四硫化双五亚甲基秋兰姆作为促进剂,硫化时间短且充分,且绝缘套管具有良好的耐磨、耐溶剂及耐腐蚀性能。
附图说明
图1为本发明的结构示意图;
图2为图1的俯视图;
图3为图1的仰视图;
图4为管体的截面剖视图。
其中:1、管体;2、插杆;3、插孔;4、空腔;5、凸块;6、盖板;7、通孔;8、防水层;9、绝缘层;10、耐高温层;11、防护层。
具体实施方式
实施例1
本实施例提供的一种插接式绝缘套管,结构如图1所示,包括管体1,所述管体1的上端面上固定设置有插杆2,本实施例的插杆2为倒L型,所述管体1的下端面上设置有与插杆2相匹配的插孔3,所述管体1下端面内设置有供插杆2移动的空腔4,通过将插杆2插入插孔3中,然后旋转,使插杆2横向部分旋转至空腔4内,即可实现两根绝缘套管之间上下的位置固定;
所述管体1侧面设置有凸块5,凸块5位于管体1侧面的下部,所述凸块5设置有两个,且处于管体1端面的同一条直径上,所述管体1侧面铰接有盖板6,盖板6位于管体1侧面的上部,所述盖板6也设置有两个,且处于管体1端面的同一条直径上,所述盖板6可沿水平线进行翻转,所述盖板6上开设有与凸块5相匹配的通孔7,所述盖板6与凸块5不在同一竖直线上,所述两根插接式绝缘套管可通过盖板6与凸块5实现两根绝缘套管之间角度的固定。
其中,所述管体1包括防水层8、绝缘层9、耐高温层10和外防护层11,所述耐高温层10位于绝缘层9的外层,所述防水层8位于耐高温层10的外层,所述外防护层11位于防水层8的外层,防水层8为聚氨酯树脂层,耐高温层10为聚氯乙烯树脂层,外防护层11为聚四氟乙烯层,所述绝缘层9由以下重量份数的原料组成:65份聚氯乙烯、5份聚四氟乙烯、10份石棉、20份天然橡胶、10份甲基乙烯基硅橡胶、5份乙烯-醋酸乙烯共聚物、3份氢氧化铝、0.5份四硫化双五亚甲基秋兰姆、0.1份4-己基间苯二酚。
本实施例所述的绝缘层9的制备方法,包括以下步骤:
S1:按重量份取65份聚氯乙烯、5份聚四氟乙烯、10份石棉、20份天然橡胶、10份甲基乙烯基硅橡胶、5份乙烯-醋酸乙烯共聚物,加入到电加热搅拌器中,将搅拌器内温度调至100℃,以350r/min的转速搅拌5分钟;
S2:将搅拌好的混合料放入单螺杆挤出机中,造粒得到树脂原料;
S3:将树脂原料放入密炼机中,密炼3分钟,放入之前将密炼机预热至60℃;
S4:将3份氢氧化铝、0.5份四硫化双五亚甲基秋兰姆、0.1份4-己基间苯二酚加入到密炼机中,进行混炼,混炼时间为5分钟,得到混炼胶料;
S5:将得到的混炼胶料进行压延成型,得到绝缘层9。
实施例2
本实施例提供的一种插接式绝缘套管,结构如图1所示,包括管体1,所述管体1的上端面上固定设置有插杆2,本实施例的插杆2为倒L型,所述管体1的下端面上设置有与插杆2相匹配的插孔3,所述管体1下端面内设置有供插杆2移动的空腔4,通过将插杆2插入插孔3中,然后旋转,使插杆2横向部分旋转至空腔4内,即可实现两根绝缘套管之间上下的位置固定;
所述管体1侧面设置有凸块5,凸块5位于管体1侧面的下部,所述管体1侧面铰接有盖板6,盖板6位于管体1侧面的上部,所述盖板6可沿水平线进行翻转,所述盖板6上开设有与凸块5相匹配的通孔7,所述盖板6与凸块5不在同一竖直线上,所述两根插接式绝缘套管可通过盖板6与凸块5实现两根绝缘套管之间角度的固定。
其中,所述管体1包括防水层8、绝缘层9、耐高温层10和外防护层11,所述耐高温层10位于绝缘层9的外层,所述防水层8位于耐高温层10的外层,所述外防护层11位于防水层8的外层,防水层8为聚氨酯树脂层,耐高温层10为聚氯乙烯树脂层,外防护层11为聚四氟乙烯层,所述绝缘层9由以下重量份数的原料组成:70份聚氯乙烯、8份聚四氟乙烯、15份石棉、25份天然橡胶、13份甲基乙烯基硅橡胶、10份乙烯-醋酸乙烯共聚物、5份氢氧化铝、1份四硫化双五亚甲基秋兰姆、0.5份4-己基间苯二酚。
本实施例所述的绝缘层9的制备方法,包括以下步骤:
S1:按重量份取70份聚氯乙烯、8份聚四氟乙烯、15份石棉、25份天然橡胶、13份甲基乙烯基硅橡胶、10份乙烯-醋酸乙烯共聚物,加入到电加热搅拌器中,将搅拌器内温度调至120℃,以400r/min的转速搅拌10分钟;
S2:将搅拌好的混合料放入单螺杆挤出机中,造粒得到树脂原料;
S3:将树脂原料放入密炼机中,密炼5分钟,放入之前将密炼机预热至65℃;
S4:将5份氢氧化铝、1份四硫化双五亚甲基秋兰姆、0.5份4-己基间苯二酚加入到密炼机中,进行混炼,混炼时间为10分钟,得到混炼胶料;
S5:将得到的混炼胶料进行压延成型,得到绝缘层9。
实施例3
本实施例提供的一种插接式绝缘套管,结构如图1所示,包括管体1,所述管体1的上端面上固定设置有插杆2,本实施例的插杆2为倒L型,所述管体1的下端面上设置有与插杆2相匹配的插孔3,所述管体1下端面内设置有供插杆2移动的空腔4,通过将插杆2插入插孔3中,然后旋转,使插杆2横向部分旋转至空腔4内,即可实现两根绝缘套管之间上下的位置固定;
所述管体1侧面设置有凸块5,凸块5位于管体1侧面的下部,所述管体1侧面铰接有盖板6,盖板6位于管体1侧面的上部,所述盖板6可沿水平线进行翻转,所述盖板6上开设有与凸块5相匹配的通孔7,所述盖板6与凸块5不在同一竖直线上,所述两根插接式绝缘套管可通过盖板6与凸块5实现两根绝缘套管之间角度的固定。
其中,所述管体1包括防水层8、绝缘层9、耐高温层10和外防护层11,所述耐高温层10位于绝缘层9的外层,所述防水层8位于耐高温层10的外层,所述外防护层11位于防水层8的外层,防水层8为聚氨酯树脂层,耐高温层10为聚氯乙烯树脂层,外防护层11为聚四氟乙烯层,所述绝缘层9由以下重量份数的原料组成:67份聚氯乙烯、6份聚四氟乙烯、13份石棉、23份天然橡胶、12份甲基乙烯基硅橡胶、8份乙烯-醋酸乙烯共聚物、4份氢氧化铝、0.8份四硫化双五亚甲基秋兰姆、0.3份4-己基间苯二酚。
本实施例所述的绝缘层9的制备方法,包括以下步骤:
S1:按重量份取67份聚氯乙烯、6份聚四氟乙烯、13份石棉、23份天然橡胶、12份甲基乙烯基硅橡胶、8份乙烯-醋酸乙烯共聚物,加入到电加热搅拌器中,将搅拌器内温度调至110℃,以370r/min的转速搅拌8分钟;
S2:将搅拌好的混合料放入单螺杆挤出机中,造粒得到树脂原料;
S3:将树脂原料放入密炼机中,密炼4分钟,放入之前将密炼机预热至63℃;
S4:将4份氢氧化铝、0.8份四硫化双五亚甲基秋兰姆、0.3份4-己基间苯二酚加入到密炼机中,进行混炼,混炼时间为8分钟,得到混炼胶料;
S5:将得到的混炼胶料进行压延成型,得到绝缘层9。
对比例:市售无锡锡伟机电复合材料有限公司生产的绝缘带。
将实施例-实施例3与对比例进行使用对比试验,各项性能按国标进行测定,试验条件及其他实验材料均相同,测试结果如表1所示:
表1
由表1可以看出,本发明制备的绝缘层9与市售的同类产品相比,附着力更强,体积密度更小,体电阻率更大,介电常数和介电损耗均更小,绝缘效果更为突出。
除上述实施例外,本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案,均落在本发明要求的保护范围。

Claims (10)

1.一种插接式绝缘套管,包括管体(1),其特征在于:所述管体(1)的上端面上固定设置有插杆(2),所述管体(1)的下端面上设置有与插杆(2)相匹配的插孔(3),所述管体(1)下端面内设置有供插杆(2)移动的空腔(4),所述管体(1)侧面设置有凸块(5),所述管体(1)侧面铰接有盖板(6),所述盖板(6)可翻转,所述盖板(6)上开设有与凸块(5)相匹配的通孔(7),所述盖板(6)与凸块(5)不在同一竖直线上,两根所述插接式绝缘套管可通过盖板(6)与凸块(5)实现位置的固定。
2.根据权利要求1所述的一种插接式绝缘套管,其特征在于:所述凸块(5)位于管体(1)侧面的下部,所述盖板(6)位于管体(1)侧面的上部。
3.根据权利要求1所述的一种插接式绝缘套管,其特征在于:所述管体(1)包括防水层(8)、绝缘层(9)、耐高温层(10)和外防护层(11),所述耐高温层(10)位于绝缘层(9)的外层,所述防水层(8)位于耐高温层(10)的外层,所述外防护层(11)位于防水层(8)的外层。
4.根据权利要求3所述的一种插接式绝缘套管,其特征在于:所述防水层(8)为聚氨酯树脂层。
5.根据权利要求3所述的一种插接式绝缘套管,其特征在于:所述耐高温层(10)为聚氯乙烯树脂层。
6.根据权利要求3所述的一种插接式绝缘套管,其特征在于:所述外防护层(11)为聚四氟乙烯层。
7.根据权利要求3所述的一种插接式绝缘套管,其特征在于:所述绝缘层(9)由以下重量份数的原料组成:65-70份聚氯乙烯、5-8份聚四氟乙烯、10-15份石棉、20-25份天然橡胶、10-13份甲基乙烯基硅橡胶、5-10份乙烯-醋酸乙烯共聚物、3-5份氢氧化铝、0.5-1份促进硫化剂、0.1-0.5份抗氧化剂。
8.根据权利要求7所述的一种插接式绝缘套管,其特征在于:所述促进硫化剂为四硫化双五亚甲基秋兰姆。
9.根据权利要求7所述的一种插接式绝缘套管,其特征在于:所述抗氧化剂为4-己基间苯二酚。
10.根据如权利要求7所述的插接式绝缘套管,其特征在于:所述绝缘层由以下步骤制得:
S1:按重量份取65-70份聚氯乙烯、5-8份聚四氟乙烯、10-15份石棉、20-25份天然橡胶、10-13份甲基乙烯基硅橡胶、5-10份乙烯-醋酸乙烯共聚物,加入到电加热搅拌器中,将搅拌器内温度调至100-120℃,以350-400r/min的转速搅拌5-10分钟;
S2:将搅拌好的混合料放入单螺杆挤出机中,造粒得到树脂原料;
S3:将树脂原料放入密炼机中,密炼3-5分钟,放入之前将密炼机预热至60-65℃;
S4:将3-5份氢氧化铝、0.5-1份促进硫化剂、0.1-0.5份抗氧化剂加入到密炼机中,进行混炼,混炼时间为5-10分钟,得到混炼胶料;
S5:将得到的混炼胶料进行压延成型,得到绝缘层(9)。
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