CN105324892A - 自关闭防火、防热、防电护套 - Google Patents
自关闭防火、防热、防电护套 Download PDFInfo
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Abstract
一种自关闭防火、防热、防电护套(1),当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,使得纵向边缘(2,3)重叠以限定一个用于将电缆(4)、管或类似物插入到所述护套(1)内的开口,其中所述护套(1)具有分层结构,具有由玻璃纤维细丝(7)和塑料单丝(8)编织的织物组成的第一层(5)和外部第二层(6),其中所述第二层(6)是由硅树脂制成的,所述第二层(6)的厚度是至少200微米。本发明还涉及用于制造所述护套的方法。
Description
技术领域
本发明涉及一种自关闭防火、防热、防电护套。
背景技术
当自关闭防热、防电护套未经受偏置力时其具有基本上管状形状,且使得纵向边缘重叠以限定一个用于将电缆、管或类似物插入到该护套内的开口,其中该护套具有分层结构,所述层之一包含硅树脂。
在WO201144345A2和WO9830830A1中公开了这些类型的护套的实施例。
WO9830830A1涉及一种由金属细丝制成的自关闭护套,所述金属细丝具有结构管骨架功能且支撑一层玻璃棉作为热绝缘。其金属含量不提供良好的电气绝缘特性。
WO201144345A2公开了一种由用硅树脂和丙烯酸的混合物浸渍的玻璃纤维制成的自关闭护套且其目标是避免磨损该产品,因此该护套不具有热功能或电功能。
这些护套提供电气绝缘以及一些热绝缘。然而,它们的电气绝缘和抗火性被减小且不足以用于许多应用。
发明内容
为了解决现有技术的缺点,本发明提出一种自关闭防火、防热、防电护套,当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,使得纵向边缘重叠以限定一个用于将电缆、管或类似物插入到该护套内的开口,其中该护套具有分层结构,具有由玻璃纤维细丝和塑料单丝编织的织物组成的第一层、以及外部第二层,其特征在于所述第二层是由硅树脂制成的,所述第二层的厚度是至少200微米。
在此护套中,纤维细丝提供防火、防热和防电性,且还用作用于硅树脂的支撑结构。塑料单丝(如本领域中已知的)用于提供自关闭效果。硅树脂提供高附加防火、防热和防电性。
在本发明中,相对高厚度的硅树脂层给予自关闭护套非常高的防火、防热以及防电性特性,迄今为止,硅树脂已经被用来浸渍保护织物。然而,在本发明中,尽管可以浸渍最外面的细丝,但是硅树脂层构成一个具有相当大厚度的外部涂层。
根据一个特别优选的变体,第二层还包括膨胀材料。此材料具有在存在火时以及在高温下使硅树脂层扩展的功能,其具有增加热绝缘和防火的效果。
根据本发明的护套的不同的可选特性,这些特性可以在技术上可能时结合:
-膨胀材料是石墨或多磷酸铵;
-单丝是由PEEK、PPS、聚酯制成的或是氟化单丝;且
-硅树脂层被外部地粘附到第一层,其中最外面的细丝可以被部分地浸渍在硅树脂中。
本发明还涉及一种用于获得自关闭防火、防热、防电护套的方法,当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,使得纵向边缘重叠以限定一个用于将电缆、管或类似物插入到该护套内的开口,该方法包括如下阶段:获得由玻璃纤维细丝和塑料单丝组成的织物以获得第一层;于该第一层之上冷添加硅树脂的第二层;使该第二层硫化且执行导致边缘重叠的第二成形以配置一个自关闭护套。
根据该方法的一个变体,它包括如下阶段:
a)平针编织玻璃纤维细丝和塑料单丝以获得第一层;
b)在不存在偏置力时,执行导致该第一层呈现管状形状的第一热成形,其中边缘不重叠;
c)于该第一层之上冷添加硅树脂的第二层;
d)执行该第二层的硫化;以及
e)执行导致边缘重叠的第二成形以配置一个自关闭护套。
在阶段b)之后,所述边缘不可重叠以避免硅树脂边缘的不适当连结。因此,成形必须是局部的且应随后通过阶段e)完成该成形,阶段e)导致准备好以供使用的重叠配置。
优选地,在200℃到300℃之间的温度下执行该阶段。
更优选地,执行该阶段时在两个边缘之间布置一个分离元件以避免所述边缘连结。
有利地,阶段e)所需热量的至少一部分是在阶段d)中提供的热量。
更有利地,该第二层还包括膨胀材料,该膨胀材料优选地是石墨。
单丝是由PEEK、PPS或聚酯制成的。
根据第二个变体,在织造梭口织机中用塑料单丝纬线和玻璃纤维经线获得第一层,执行硅树脂冷涂覆,之后执行织物的硫化和切割以获得期望的护套周长且执行最终成形以获得自关闭效果。
根据第三个变体,在织造期望的最终宽度的织造梭口织机中使用塑料单丝纬线和玻璃纤维经线获得第一层,执行硅树脂冷涂覆,之后执行硫化和最终成形以获得自关闭效果。
根据第四个变体,可以借助于包括以下阶段的方法获得本发明的护套:
-平针编织玻璃纤维细丝和塑料单丝以获得第一层。
-于该第一层之上冷添加硅树脂第二层。
-执行该第二层的硫化。
-执行导致边缘重叠的成形以配置一个自关闭护套。
附图说明
为了更好的理解前述内容,本文附有一个附图,其中示意性地且仅以非限制实施例的方式呈现了一个实施方案。
图1是护套的高度示意性横截面,其中电缆已经被插入。
具体实施方式
如可在该单幅附图中观察到,本发明涉及一种自关闭防火、防热、防电护套1,当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,且使得纵向边缘2、3重叠以限定一个用于将电缆4、管或类似物插入到该护套1内的开口,其中该护套1具有分层结构,由玻璃纤维细丝7和塑料单丝8编织的织物组成的第一层5、以及外部第二层6。
上述结构是已知结构,本发明的特征在于第二层6是由硅树脂制成的,所述第二层6的厚度是至少200微米。
根据本发明的一个特别优选的实施方案,第二层6还包括膨胀材料,优选地石墨,单丝8是由PEEK、PPS或聚酯制成的且硅树脂层6被外部地粘附到第一层5。
本发明还涉及一种获得自关闭防火、防热、防电护套1的方法,当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,且使得纵向边缘2、3重叠以限定一个用于将电缆4、管或类似物引入该护套1内部的开口。
根据该方法的一个实施方案,它包括以下阶段:
a)平针编织玻璃纤维细丝7和塑料单丝8以获得第一层5;
b)在不存在偏置力时,在200℃到300℃之间的温度下执行导致该第一层5呈现管状形状的第一热成形,其中边缘2、3不重叠;
c)于该第一层5之上冷添加硅树脂的第二层6,在两个边缘2、3之间布置一个分离元件以避免其连结;
d)执行该第二层6的硫化;以及
e)执行导致边缘2、3重叠的第二成形从而配置成一个自关闭护套1。
有利地,阶段e)所需的热量的至少一部分是在阶段d)中提供的热量。
根据该方法的第二个变体,在织造梭口织机中用塑料单丝纬线和玻璃纤维经线获得第一层5,随后冷添加硅树脂层6,之后使硅树脂层6硫化,然后切割织物以获得期望的护套1周长且执行最终成形以获得自关闭效果。
根据该方法的第三个变体,在织造期望的最终宽度的织造梭口织机中使用塑料单丝纬线和玻璃纤维经线获得第一层5,执行硅树脂冷涂覆,之后执行硫化和最终成形以获得自关闭效果。
根据第四个变体,可以使用包括以下阶段的方法获得本发明的护套1:
-平针编织玻璃纤维细丝和塑料单丝以获得第一层5。
-于该第一层之上冷添加硅树脂的第二层6。
-执行第二层6的硫化。
-执行导致边缘2、3重叠的成形以配置自关闭护套1。
尽管已经提及本发明的一个具体实施方案的事实,但本领域技术人员应明白,在不偏离由所附权利要求限定的保护范围的前提下,所描述的护套和方法容许许多变体和改型且所有上述细节可由技术上等同的细节替换。
Claims (16)
1.一种自关闭防火、防热、防电护套(1),当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,使得纵向边缘(2,3)重叠以限定一个用于将电缆(4)、管或类似物插入到所述护套(1)内的开口,其中所述护套(1)具有层状结构,具有由玻璃纤维细丝(7)和塑料单丝(8)编织的织物组成的第一层(5)、以及外部第二层(6),
其特征在于,所述第二层(6)是由硅树脂制成的,其中所述第二层(6)的厚度是至少200微米。
2.根据权利要求1所述的保护护套,其中所述第二层(6)还包括膨胀材料。
3.根据权利要求2所述的护套,其中所述膨胀材料是石墨或多磷酸铵。
4.根据任一项前述权利要求所述的护套,其中所述单丝(8)是由PEEK、PPS、聚酯制成的或是氟化单丝。
5.根据任一项前述权利要求所述的护套,其中所述硅树脂层(6)被外部地粘附到所述第一层(5)。
6.一种用于获得自关闭防火、防热、防电护套(1)的方法,当该自关闭防火、防热、防电护套未经受偏置力时其具有基本上管状形状,使得纵向边缘(2,3)重叠以限定一个用于将电缆(4)、管或类似物插入到所述护套(1)内的开口,所述方法至少包括如下步骤:获得由玻璃纤维细丝(7)和塑料单丝(8)组成的织物以用于获得第一层(5);于所述第一层(5)之上冷添加硅树脂的第二层(6);使所述第二层(6)硫化且执行导致所述边缘(2,3)重叠的第二成形,从而配置成一个自关闭护套(1)。
7.根据前一项权利要求所述的方法,其包括以下阶段:
a)平针编织玻璃纤维细丝(7)和塑料单丝(8)以获得第一层(5);
b)在不存在偏置力时,执行导致所述第一层(5)呈现管状形状的第一热成形,其中所述边缘(2,3)不重叠;
c)于所述第一层(5)之上冷添加硅树脂的第二层(6);
d)执行所述第二层(6)的硫化;以及
e)执行导致所述边缘(2,3)重叠的第二成形,从而配置成一个自关闭护套(1)。
8.根据权利要求7所述的方法,其中在200℃到300℃之间的温度下执行阶段b)。
9.根据权利要求7到8中的任一项所述的方法,其中执行阶段c)时在所述两个边缘(2,3)之间布置一个分离元件以防止其连结。
10.根据权利要求7到9中的任一项所述的方法,其中阶段e)所需的热量的至少一部分是在阶段d)中提供的热量。
11.根据权利要求6到10中的任一项所述的方法,其中所述第二层(6)还包括膨胀材料。
12.根据权利要求11所述的方法,其中所述膨胀材料是石墨。
13.根据权利要求6到12中的任一项所述的方法,其中所述单丝(8)是由PEEK、PPS或聚酯制成的。
14.根据权利要求6所述的方法,其中在织造梭口织机中用塑料单丝纬线和玻璃纤维经线获得所述第一层(5),随后冷添加硅树脂层(6),之后使所述硅树脂层(6)硫化,然后切割织物以获得期望的护套(1)周长且执行最终成形以获得自关闭效果。
15.根据权利要求6所述的方法,其中在织造期望的最终宽度的织造梭口织机中使用塑料单丝纬线和玻璃纤维经线获得所述第一层,执行硅树脂冷涂覆,之后执行硫化和最终成形以获得自关闭效果。
16.根据权利要求6所述的方法,包括如下阶段:
-平针编织玻璃纤维细丝和塑料单丝以获得第一层(5)。
-于所述第一层之上冷添加硅树脂的第二层(6)。
-执行所述第二层(6)的硫化。
-执行导致所述边缘(2,3)重叠的成形以配置一个自关闭护套(1)。
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ESU201330765 | 2013-06-19 | ||
ES201330765U ES1091109Y (es) | 2013-06-19 | 2013-06-19 | Funda tubular provista de una abertura longitudinal |
ESP201331669 | 2013-11-15 | ||
ES201331669A ES2439395B1 (es) | 2013-11-15 | 2013-11-15 | Funda de protección contra el fuego, térmica y eléctrica autocerrable |
PCT/ES2014/070465 WO2014202807A1 (es) | 2013-06-19 | 2014-06-05 | Funda de protección contra el fuego, térmica y eléctrica autocerrable |
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CN201480034666.7A Pending CN105324892A (zh) | 2013-06-19 | 2014-06-05 | 自关闭防火、防热、防电护套 |
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CN111825935A (zh) * | 2020-08-11 | 2020-10-27 | 佛山市南海崇泰防火材料有限公司 | 一种电线电缆用柔性防火管及其用途 |
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CA2989698A1 (en) * | 2015-06-19 | 2016-12-22 | Rockwool International A/S | Intumescent fire sleeve, coil of several intumescent fire sleeves and method for installation of an intumescent fire sleeve |
EP3531000B1 (en) | 2018-02-21 | 2022-10-26 | HS Marston Aerospace Limited | Intumescent protection of ptfe hoses |
WO2023172945A1 (en) * | 2022-03-08 | 2023-09-14 | Federal-Mogul Powertrain Llc | Flexible, arc resistant, fluid repellant, high temperature and abrasion resistant, wrappable textile sleeve and method of construction thereof |
WO2023183638A1 (en) * | 2022-03-25 | 2023-09-28 | Federal-Mogul Powertrain Llc | Dielectric, impact resistant, emi textile sleeve and method of construction thereof |
WO2023183639A1 (en) * | 2022-03-25 | 2023-09-28 | Federal-Mogul Powertrain Llc | Self-locating, dielectric, impact resistant textile sleeve and method of construction thereof |
WO2024073670A1 (en) * | 2022-09-30 | 2024-04-04 | Federal-Mogul Powertrain Llc | Knit tubular thermal sleeve with wrappable cover and method of construction thereof |
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EP3012930A1 (en) | 2016-04-27 |
EP3012930A4 (en) | 2017-03-08 |
CN108790293A (zh) | 2018-11-13 |
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