CN101438088A - 管用阻燃剂护套 - Google Patents
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Abstract
一种管组合件，包括导电波纹管，该波纹管包括具有峰和谷的折皱及沿所述波纹管长度布置的聚合物护套，该聚合物护套包含阻燃剂。
Description
背景技术
波纹管或金属软管作为输送例如天然气的流体的导管为刚性管***提供了一种替代方案。波纹管可以容易地安装，并且可用于许多***应用中。由于其特别柔性的结构和相对高的强度，波纹管的安装更为简单且更有成本效益。该柔性具有固有限制。随着管内工作流体的内压力增加，所述波纹管结构对压力起反应。当内压超过管材强度时，典型的波纹管结构开始沿其长度伸长并膨胀。工作流体的高压使折皱膨胀。折皱膨胀导致管变形超出其原始形状和尺寸。
为了满足较高的工作压力范围，可以给常规波纹管套上金属网编织层。编织层固定在波纹管的相对端上。该编织层增强了波纹管结构，从而在内压力增加时抵抗折皱膨胀。该编织层在抵抗波纹管膨胀的功能上有效，从而增加工作压力的能力。然而，覆盖波纹管外径的编织层经受与其覆盖的波纹管的相对运动。管和编织层沿着波纹管的长度相对移动。在将波纹管装设至产生振动并转移到管的机械设备的应用中，该相对运动在编织层的内部和管的外表面之间产生磨损。管的外表面和编织层的内表面之间的磨损产生破坏机理，其损害波纹管结构的完整性。所述编织层往复运动并摩擦波纹管的外表面材料，直至管的压力限度失效并随之泄漏工作流体。
现有管的另一缺点是管经常容纳在护套内。通常地，护套用绝缘材料制成。在将管引入电荷(例如来自直接或间接的闪电放电)的情况下，电荷聚积在护套上，并且可以穿透护套到达管，导致管破坏。
发明内容
本发明的一个实施方案是一种包括导电波纹管的管组合件，该波纹管包括具有峰和谷的折皱(convolution)和沿所述波纹管长度布置的聚合物护套，所述聚合物护套包含阻燃剂。
附图说明
图1是电荷耗散管组合件的部分截面侧视图。
具体实施方式
图1是电荷耗散管组合件10的部分截面侧视图。管组合件10包括管12和导电护套14。管12可以是用于输送例如天然气、液体等流体的环形波纹不锈钢管(CSST)。作为一个替代方案，管12可以是螺旋形卷绕管。
护套14在管12上挤塑而成。波纹管12具有外表面和内表面。内表面通常暴露于工作流体。波纹管12包括的结构具有变化的直径或沿波纹管12的长度以交替序列形成峰和谷的折皱。所述外表面用作与内表面相反的峰和谷的基准。峰由具有较大外直径的折皱构成，谷由具有较小外直径的折皱构成。
导电护套14布置在波纹管12的外表面上。导电护套14可以基本上填充谷，并且覆盖外表面上的峰。导电护套14沿波纹管12的长度布置。构成导电护套14的材料具有抵抗使材料变形的力(例如张力和剪切力)的性质。结果，当工作流体的内压力增加并使波纹管12伸展开时，布置在外表面的谷中的导电护套14抵抗所产生的力。导电护套14抑制波纹管12的膨胀或伸展，使得波纹管12在线性尺寸或直径方面没有明显变形。导电护套14支承波纹管12的每个折皱。构成导电护套14的材料也是有弹性和柔性的。由于波纹管12沿着其长度弯曲(bend)和伸缩(flex)，所以导电护套14随波纹管12一起弯曲和伸缩。
可以改变导电护套14的厚度，以增强管膨胀抗性或为波纹管12提供较多或较少的柔性。可以通过改变导电护套14的厚度来满足各种压力等级。导电护套14的厚度和波纹管12的压力等级之间存在直接关系。将导电护套14应用至波纹管12使波纹管12的压力等级增加到高于没有导电护套14的波纹管12的压力等级。导电护套14还增加在波纹管12中产生金属疲劳失效所需的弯曲周期数，并且减轻振动，以减少振动疲劳所致的波纹管12失效。
可以将导电护套14挤塑到波纹管12的折皱中。可以使用其它制造方法将导电护套14布置到波纹管12的外表面上。在一个实施方案中，迫使导电护套14进入谷中，以基本上填充谷并覆盖峰。随着导电护套14的挤出，它基本上熔融并向下流入波纹管12的折皱中。熔融的导电护套14在波纹管12上冷却。熔融材料基本上填充谷并覆盖峰。在一个替代实施方案中，将聚合物导电护套14向下挤入折皱中，然后(例如通过热)固化。
可以应用导电护套14，以使导电护套14基本上粘合至波纹管的整个外表面。任选的导电护套14与外表面的粘合可以是机械粘合或化学粘合，使导电护套14基本上粘附至波纹管12的外表面。此外，通过位于谷中，由于导电护套14的材料性质，导电护套14机械阻止波纹管12变形。随着将导电护套14应用为使导电护套14和波纹管12表面之间存在粘合，导电护套14和波纹管12表面之间没有相对运动。消除了导电护套14和外表面之间的相对运动，则基本上消除了磨损机制，同时仍然提供压力增强效果。
在一个替代实施方案中，在波纹管12上挤塑导电护套14，但是不迫使其进入波纹管的谷中。导电护套14覆盖波纹管12的峰，但是没有被迫入谷中。
导电护套14可由导电热塑性聚合物(例如基于热塑性聚醚的聚氨酯化合物)制成。其它的导电热塑性材料可以用于护套14，本发明不局限于聚氨酯。聚合物优选具有下列性能。
表A
在一个替代实施方案中，导电护套由具有表A所示特性的热塑性聚乙烯制成。聚乙烯护套可以按上文所述粘合至波纹管12。
在管组合件一端或两端是配合件16。配合件16可以是现有的CSST配合件，例如在美国专利5799989、6079749、6276728中公开的那些，这些专利的全部内容通过引用并入本文。优选该末端配合件由金属(例如黄铜)制成。
因为护套14是由导电热塑性材料制成的，所以积聚在护套14上的电荷(例如由于直接或间接雷击引起的)通过护套14传到管12，然后传到末端配合件16，并穿过连接到配合件16的部件。因此，管12不被非导电护套上的电荷累积所损坏。
管组合件可用于许多应用中，包括可能遭受雷击(直接或间接)或其它电荷累积来源的民用或商用、内部或外部以及地面或地下设施中。
在一个替代实施方案中，除了导电材料，可以将一种或更多种阻燃剂加入聚合物护套14中。阻燃剂可以使管组合件满足或超过各种标准。例如，本发明的实施方案管组合件包括含量足量的阻燃剂，以在不除去护套的情况下通过<50烟浓度和<25火焰蔓延以及1、2和4小时UL贯穿洞孔挡火***分类(UL Through PenetrationFirestop System Classification)等级的UL 723/ASTM E84测试。
下表B示出可以加入聚合物护套14的示范性阻燃剂类型和阻燃剂的重量百分数。
表B
阻燃剂 ％(重量)
氮/磷 约40～约60
溴化的 约10～约20
氯化的 约30～约50
氢氧化镁 约40～约60
三水合铝 约40～约60
包括该阻燃剂的本发明实施方案产生具有下表C物理性质的聚合物护套。
表C
机械性能
拉伸强度 约1500磅/平方英寸最小值
延伸率 约200％最小值
弯曲模量 约50000磅/平方英寸最小值
虽然已经显示并描述了优选的实施方案，但是在不脱离本发明构思和范围的情况下，可以对其进行各种修改和替换。因此，应当理解，本发明是以举例说明而不是限制的方式来描述的。
Claims (15)
1.一种管组合件，包括：
导电波纹管，所述导电波纹管包括具有峰和谷的折皱；
沿所述波纹管长度布置的聚合物护套，所述聚合物护套包含阻燃剂。
2.根据权利要求1所述的管组合件，其中：
所述聚合物护套具有约1500磅/平方英寸的最小抗拉强度。
3.根据权利要求1所述的管组合件，其中：
所述聚合物护套具有约200％的最小延伸率。
4.根据权利要求1所述的管组合件，其中：
所述聚合物护套具有约50000磅/平方英寸的最小弯曲模量。
5.根据权利要求1所述的管组合件，其中：
所述阻燃剂的量足以使所述管组合件通过<50烟浓度和<25火焰蔓延及1、2和4小时UL贯穿洞孔挡火***分类等级的UL723/ASTME84测试。
6.根据权利要求1所述的管组合件，其中：
所述阻燃剂是氮/磷型阻燃剂，在所述聚合物护套中以约40％至约60％重量的量存在。
7.根据权利要求1所述的管组合件，其中：
所述阻燃剂是溴化型阻燃剂，在所述聚合物护套中以约10％至约20％重量的量存在。
8.根据权利要求1所述的管组合件，其中：
所述阻燃剂是氯化型阻燃剂，在所述聚合物护套中以约30％至约50％重量的量存在。
9.根据权利要求1所述的管组合件，其中：
所述阻燃剂是氢氧化镁型阻燃剂，在所述聚合物护套中以约40％至约60％重量的量存在。
10.根据权利要求1所述的管组合件，其中：
所述阻燃剂是三水合铝型阻燃剂，在所述聚合物护套中以约40％至约60％重量的量存在。
11.根据权利要求1所述的管组合件，其中：
所述波纹管是环形的。
12.根据权利要求1所述的管组合件，其中：
所述波纹管是螺旋形的。
13.根据权利要求1所述的管组合件，其中：
其中所述导电聚合物护套基本上填充所述谷，并且基本上覆盖所述峰。
14.根据权利要求1所述的管组合件，还包括：
在其一端连接至所述波纹管的配合件。
15.一种管组合件，包括：
导电波纹管，所述导电波纹管包括具有峰和谷的折皱；
沿所述波纹管长度布置的导电聚合物护套。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/382,960 | 2006-05-12 | ||
| US11/382,960 US7367364B2 (en) | 2003-04-08 | 2006-05-12 | Fire retardant jacket for tubing |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110135553.4A Division CN102226488A (zh) | 2006-05-12 | 2007-05-09 | 管用阻燃剂护套 |
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| CN101438088A true CN101438088A (zh) | 2009-05-20 |
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| CN201110135553.4A Pending CN102226488A (zh) | 2006-05-12 | 2007-05-09 | 管用阻燃剂护套 |
| CN200780016736.6A Pending CN101438088A (zh) | 2006-05-12 | 2007-05-09 | 管用阻燃剂护套 |
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| US (1) | US7367364B2 (zh) |
| EP (1) | EP2021669B1 (zh) |
| CN (2) | CN102226488A (zh) |
| AR (1) | AR060891A1 (zh) |
| AU (1) | AU2007249938B2 (zh) |
| BR (1) | BRPI0711602B1 (zh) |
| CA (1) | CA2651829C (zh) |
| CO (1) | CO6141482A2 (zh) |
| CY (1) | CY1113170T1 (zh) |
| DK (1) | DK2021669T3 (zh) |
| ES (1) | ES2390708T3 (zh) |
| IL (1) | IL195242A0 (zh) |
| MX (1) | MX2008014254A (zh) |
| NZ (1) | NZ572432A (zh) |
| PT (1) | PT2021669E (zh) |
| RU (1) | RU2483237C2 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987420A (zh) * | 2011-10-14 | 2014-08-13 | 费雪派克医疗保健有限公司 | 医疗管和制造方法 |
| CN105339718A (zh) * | 2013-05-09 | 2016-02-17 | 泰特弗莱克斯公司 | 衬套、密封装置、管以及安装管的方法 |
| CN108027486A (zh) * | 2015-08-11 | 2018-05-11 | 康宁光电通信有限责任公司 | 光纤电缆 |
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| ITMI20060427A1 (it) * | 2006-03-10 | 2007-09-11 | Mauro Mazzo | Tubo a bassa pressione per la connessione a bombole per attivita'subacquee |
| US8905058B2 (en) | 2009-08-03 | 2014-12-09 | Goodson Holdings, Llc | Apparatus and method for detection and cessation of unintended gas flow |
| US9097389B2 (en) | 2009-08-03 | 2015-08-04 | Goodson Holdings, Llc | Apparatus and method for detection and cessation of unintended gas flow |
| EP2467916A4 (en) | 2009-08-21 | 2014-06-04 | Titeflex Corp | ENERGY WASTE TUBES, SEALING DEVICES THEREFOR, AND METHOD FOR THEIR MANUFACTURE AND INSTALLATION |
| US8905083B2 (en) | 2012-01-27 | 2014-12-09 | Titeflex Corporation | Energy dissipative tubes and methods of fabricating and installing the same |
| US20140251482A1 (en) * | 2013-03-06 | 2014-09-11 | Durst Corporation, Inc. | Fluid Supply Hoses Having a Heat-Shrunk, Antifungal Outer Cover and Method for Making Same |
| US9541225B2 (en) | 2013-05-09 | 2017-01-10 | Titeflex Corporation | Bushings, sealing devices, tubing, and methods of installing tubing |
| GB2575836A (en) | 2018-07-25 | 2020-01-29 | Lachlan Ivett Jonathon | Connector assembly |
| US11994241B2 (en) * | 2021-12-02 | 2024-05-28 | Omega Flex, Inc. | Arc resistant corrugated tubing system with protective jacket and fitting |
| WO2023101820A1 (en) * | 2021-12-02 | 2023-06-08 | Omega Flex, Inc. | Arc resistant corrugated tubing with protective jacket and fitting |
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-
2006
- 2006-05-12 US US11/382,960 patent/US7367364B2/en not_active Expired - Lifetime
-
2007
- 2007-05-09 CA CA2651829A patent/CA2651829C/en active Active
- 2007-05-09 BR BRPI0711602-0A patent/BRPI0711602B1/pt not_active IP Right Cessation
- 2007-05-09 CN CN201110135553.4A patent/CN102226488A/zh active Pending
- 2007-05-09 EP EP07776906A patent/EP2021669B1/en active Active
- 2007-05-09 WO PCT/US2007/011165 patent/WO2007133574A2/en active Application Filing
- 2007-05-09 DK DK07776906.5T patent/DK2021669T3/da active
- 2007-05-09 AU AU2007249938A patent/AU2007249938B2/en not_active Ceased
- 2007-05-09 PT PT07776906T patent/PT2021669E/pt unknown
- 2007-05-09 ES ES07776906T patent/ES2390708T3/es active Active
- 2007-05-09 NZ NZ572432A patent/NZ572432A/en not_active IP Right Cessation
- 2007-05-09 RU RU2008148974/06A patent/RU2483237C2/ru not_active Application Discontinuation
- 2007-05-09 MX MX2008014254A patent/MX2008014254A/es active IP Right Grant
- 2007-05-09 CN CN200780016736.6A patent/CN101438088A/zh active Pending
- 2007-05-11 AR ARP070102042A patent/AR060891A1/es active IP Right Grant
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2008
- 2008-10-16 ZA ZA200808842A patent/ZA200808842B/xx unknown
- 2008-11-11 CO CO08120279A patent/CO6141482A2/es unknown
- 2008-11-11 IL IL195242A patent/IL195242A0/en active IP Right Grant
-
2012
- 2012-10-03 CY CY20121100920T patent/CY1113170T1/el unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103987420A (zh) * | 2011-10-14 | 2014-08-13 | 费雪派克医疗保健有限公司 | 医疗管和制造方法 |
| CN103987420B (zh) * | 2011-10-14 | 2018-10-16 | 费雪派克医疗保健有限公司 | 医疗管和制造方法 |
| CN108992757A (zh) * | 2011-10-14 | 2018-12-14 | 费雪派克医疗保健有限公司 | 医疗管和制造方法 |
| US10828455B2 (en) | 2011-10-14 | 2020-11-10 | Fisher & Paykel Healthcare Limited | Medical tubes and methods of manufacture |
| CN105339718A (zh) * | 2013-05-09 | 2016-02-17 | 泰特弗莱克斯公司 | 衬套、密封装置、管以及安装管的方法 |
| CN108027486A (zh) * | 2015-08-11 | 2018-05-11 | 康宁光电通信有限责任公司 | 光纤电缆 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2021669A4 (en) | 2009-07-29 |
| CA2651829A1 (en) | 2007-11-22 |
| EP2021669B1 (en) | 2012-07-18 |
| IL195242A0 (en) | 2009-09-22 |
| BRPI0711602A2 (pt) | 2011-12-20 |
| CY1113170T1 (el) | 2016-04-13 |
| US20060254662A1 (en) | 2006-11-16 |
| WO2007133574A2 (en) | 2007-11-22 |
| WO2007133574A3 (en) | 2008-12-18 |
| CO6141482A2 (es) | 2010-03-19 |
| DK2021669T3 (da) | 2012-10-15 |
| EP2021669A2 (en) | 2009-02-11 |
| AR060891A1 (es) | 2008-07-23 |
| CA2651829C (en) | 2014-12-02 |
| NZ572432A (en) | 2011-09-30 |
| MX2008014254A (es) | 2009-03-25 |
| AU2007249938B2 (en) | 2012-12-20 |
| CN102226488A (zh) | 2011-10-26 |
| ES2390708T3 (es) | 2012-11-15 |
| US7367364B2 (en) | 2008-05-06 |
| RU2008148974A (ru) | 2010-06-20 |
| RU2483237C2 (ru) | 2013-05-27 |
| PT2021669E (pt) | 2012-10-22 |
| AU2007249938A1 (en) | 2007-11-22 |
| BRPI0711602B1 (pt) | 2022-04-12 |
| ZA200808842B (en) | 2009-11-25 |
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