CN113921182A - 一种低烟无卤电缆 - Google Patents

一种低烟无卤电缆 Download PDF

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CN113921182A
CN113921182A CN202111363506.5A CN202111363506A CN113921182A CN 113921182 A CN113921182 A CN 113921182A CN 202111363506 A CN202111363506 A CN 202111363506A CN 113921182 A CN113921182 A CN 113921182A
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翟兴贺
寇军鹏
谢广然
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Jinglan Cable Co ltd
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Abstract

本发明提供了涉及电缆生产技术领域的一种低烟无卤电缆，其中，包括电缆本体；电缆本体包括若干电缆芯，在第一套管的外部设置有第二套管，在第一套管与第二套管之间填充有非牛顿流体；在第二套管的外部套设有第三套管，第二套管的外表面均布设置有若干梯形凸起片，相邻的梯形凸起之间由弧形卡片相连接，若干梯形凸起片与若干弧形卡片收尾相接形成环状铠装圈，在第三套管的内壁上均布设置有若干梯形卡块，每一梯形卡块位置分别与一个弧形卡片的位置相对；本发明结构稳定，通过三层套管及环状铠装圈的设置，电缆内部不易被损坏，使用寿命长。通过套管及环状铠装圈的设置，可清楚地体现出电缆受力点，便于人员找到故障位置，方便维修。

Description

一种低烟无卤电缆
技术领域
本发明涉及电缆技术领域，具体地说一种低烟无卤电缆。
背景技术
电缆是一种电能或信号传输装置,通常是由几根或几组导线组成。通常是由几根或几组导线(每组至少两根)绞合而成的类似绳索的电缆,每组导线之间相互绝缘,并常围绕着一根中心扭成,整个外面包有高度绝缘的覆盖层。电缆具有内通电,外绝缘的特征。
由于电力电缆外径较大,运输、敷设较为困难,电力电缆对转弯半径的要求也比较严格,如果电力电缆转弯角度过大,可能使导体内部受到机械损伤,而机械损伤因被电力电缆绝缘层掩盖而无法看到,即使测量回路电阻,绝缘和泄露试验也很难发现缺陷,运行时则在受损处过热使电缆绝缘强度下降,直到出现故障。
因此急需一种结构稳固、故障易检测的电缆。
发明内容
本发明的目的是提供一种低烟无卤电缆，以解决现有的电缆易损、不易修复的问题。
本发明是这样实现的：一种低烟无卤电缆，其中，包括电缆本体；
所述电缆本体包括若干电缆芯，在每一电缆芯外部包裹有聚四氟乙烯绝缘层，在聚四氟乙烯绝缘层的外部包裹有纤维绕包层，在纤维绕包层的外部包裹有防水层；若干电缆芯呈阵列分布，在电缆芯阵列的外部包裹有第一套管，在第一套管内填充有聚氨酯材料；
在所述第一套管的外部设置有第二套管，在第一套管与第二套管之间填充有非牛顿流体；
在第二套管的外部套设有第三套管，所述第二套管的外表面均布设置有若干梯形凸起片，相邻的梯形凸起之间由弧形卡片相连接，若干梯形凸起片与若干弧形卡片收尾相接形成环状铠装圈，在所述第三套管的内壁上均布设置有若干梯形卡块，每一所述梯形卡块位置分别与一个所述弧形卡片的位置相对；在所述第二套管与所述环状铠装圈之间填充有橡胶绝缘颗粒，在所述环状铠装圈与所述第三套管之间填充有聚氨酯发泡材料；在第三套管的管材无规则分散设置有若干高聚物微粒。
优选的，所述环状铠装圈的材质为金属。
优选的，所述纤维绕包层材质为高强度尼龙或玄武岩纤维。
优选的，所述第一套管的材料为高温硫化硅橡胶。
优选的，所述梯形卡块与所述第三套管一体成型制成。
优选的，所述第二套管的材质为金属。
优选的，在所述第三套管的外表面涂覆有防水涂料。
采用上述技术方案，本发明结构稳定，通过三层套管及环状铠装圈的设置，电缆内部不易被损坏，使用寿命长。通过套管及环状铠装圈的设置，可清楚地体现出电缆受力点，便于人员找到故障位置，方便维修。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的结构示意图。
图中：1—电缆芯，2—聚四氟乙烯绝缘层，3—纤维绕包层，4—防水层，5—第一套管，6—聚氨酯材料，7—第二套管，8—非牛顿流体，9—第三套管，10—环状铠装圈，11—梯形卡块，12—橡胶绝缘颗粒，13—聚氨酯发泡材料，14—高聚物微粒。
具体实施方式
下面结合附图和实施例对本发明的实施方式作进一步详细描述。以下实施例用于说明本发明，但不能用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
如图1所示，本发明提供了一种低烟无卤电缆，包括电缆本体。电缆本体包括若干电缆芯1，在每一电缆芯1外部包裹有聚四氟乙烯绝缘层2，在聚四氟乙烯绝缘层2的外部包裹有纤维绕包层3，在纤维绕包层3的外部包裹有防水层4。若干电缆芯1呈阵列分布，在电缆芯阵列的外部包裹有第一套管5，在第一套管5内填充有聚氨酯材料6。聚氨酯材料6具有一定弹性，进一步的，第一套管5的材料为高温硫化硅橡胶，第一套管5及其内的聚氨酯材料6可对外力起到缓冲作用。聚四氟乙烯具有良好的绝缘性，纤维绕包层3材质为高强度尼龙或玄武岩纤维，纤维绕包,3具有很高的弹性模量，能使电缆整体抗拉强度大大提高，同时电缆的重量又不会有太多的增加。优选的，电缆芯1的数量为3-4条，电缆芯1在第一套管5内呈阵列分布。
本发明在第一套管5的外部设置有第二套管7，在第一套管5与第二套管7之间填充有非牛顿流体8。优选的，第二套管7的材质为金属材质，第二套管7具有一定的硬度，且可以提高电缆的屏蔽性能。非牛顿流体8具有极好的抗冲击能力，在电缆突然受到较大的外力时，非牛顿流体8可抵御外力，保护其内部的电缆芯1不受到破坏。
进一步的，本发明在第二套管7的外部套设有第三套管9，第二套管7的外表面均布设置有若干梯形凸起片，相邻的梯形凸起之间由弧形卡片相连接，若干梯形凸起片与若干弧形卡片收尾相接形成环状铠装圈10，在第三套管9的内壁上均布设置有若干梯形卡块11，每一梯形卡块11位置分别与一个弧形卡片的位置相对。在第二套管7与环状铠装圈10之间填充有橡胶绝缘颗粒12，在环状铠装圈10与第三套管9之间填充有聚氨酯发泡材料13。在第三套管12的管材无规则分散设置有若干高聚物微粒14。优选的，环状铠装圈10的材质为金属。
高聚物颗粒14由橡胶材料包围，在受到外力时破裂，其内部的高聚物材料释放并可以对第三套管12破裂处进行修补，在破坏程度小的情况下，高聚物颗粒14可自主对电缆进行修补，以支撑电缆使用至人员前来维修。
优选的，梯形卡块11与第三套管9一体成型制成。
第三套管9同样可采用高温硫化硅橡胶制成，在第三套管的外表面上涂覆有防水涂料。
第二套管7、环状铠装圈10、第三套管9同样对电缆芯1起到保护作用。在受到某一方向的外力时，第三套管9内的梯形卡块11向内压直至压到环状铠装圈10的梯形凹槽内，在外力作用下，环状铠装圈10夹紧梯形卡块11并发生形变。其金属材质吸收部分外力，防止瞬时外力作用过大。进一步的，外力会传导至第二套管7上，由于第二套管7也为金属材质，所以同样可吸收部分外力。
由于环状铠装圈10受力变形后无法自动复原，所以，电缆外表会呈现凹坑状，从电缆外表可轻易地找出受力点或故障点，便于人员进行更换维修。
本发明结构稳定，通过三层套管及环状铠装圈的设置，电缆内部不易被损坏，使用寿命长。通过套管及环状铠装圈的设置，可清楚地体现出电缆受力点，便于人员找到故障位置，方便维修。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。

Claims (7)

1.一种低烟无卤电缆，其特征是，包括电缆本体；
所述电缆本体包括若干电缆芯，在每一电缆芯外部包裹有聚四氟乙烯绝缘层，在聚四氟乙烯绝缘层的外部包裹有纤维绕包层，在纤维绕包层的外部包裹有防水层；若干电缆芯呈阵列分布，在电缆芯阵列的外部包裹有第一套管，在第一套管内填充有聚氨酯材料；
在所述第一套管的外部设置有第二套管，在第一套管与第二套管之间填充有非牛顿流体；
在第二套管的外部套设有第三套管，所述第二套管的外表面均布设置有若干梯形凸起片，相邻的梯形凸起之间由弧形卡片相连接，若干梯形凸起片与若干弧形卡片收尾相接形成环状铠装圈，在所述第三套管的内壁上均布设置有若干梯形卡块，每一所述梯形卡块位置分别与一个所述弧形卡片的位置相对；在所述第二套管与所述环状铠装圈之间填充有橡胶绝缘颗粒，在所述环状铠装圈与所述第三套管之间填充有聚氨酯发泡材料；在第三套管的管材无规则分散设置有若干高聚物微粒。
2.根据权利要求1所述的一种低烟无卤电缆，其特征是，所述环状铠装圈的材质为金属。
3.根据权利要求1所述的一种低烟无卤电缆，其特征是，所述纤维绕包层材质为高强度尼龙或玄武岩纤维。
4.根据权利要求1所述的一种低烟无卤电缆，其特征是，所述第一套管的材料为高温硫化硅橡胶。
5.根据权利要求1所述的一种低烟无卤电缆，其特征是，所述梯形卡块与所述第三套管一体成型制成。
6.根据权利要求1所述的一种低烟无卤电缆，其特征是，所述第二套管的材质为金属。
7.根据权利要求1所述的一种低烟无卤电缆，其特征是，在所述第三套管的外表面涂覆有防水涂料。
CN202111363506.5A 2021-11-17 2021-11-17 一种低烟无卤电缆 Pending CN113921182A (zh)

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