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    Electrofusion Fittings and Methods
    2.
    发明申请
    Electrofusion Fittings and Methods 有权
    电熔配件及方法

    公开(公告)号：US20150076809A1

    公开(公告)日：2015-03-19

    申请号：US14384683

    申请日：2013-03-12

    Applicant: Pioneer Lining Technology Limited

    Inventor： Stephen Barnes

    IPC: F16L47/03 ,  B29D23/00 ,  B29C65/02 ,  F16L13/02 ,  G01M3/02

    CPC classification number: F16L47/03 ,  B29C65/022 ,  B29C65/3432 ,  B29C65/3468 ,  B29C65/8246 ,  B29C66/1222 ,  B29C66/1224 ,  B29C66/1282 ,  B29C66/12841 ,  B29C66/12842 ,  B29C66/1286 ,  B29C66/14 ,  B29C66/232 ,  B29C66/5221 ,  B29C66/52291 ,  B29C66/52293 ,  B29C66/52296 ,  B29C66/5346 ,  B29C66/612 ,  B29C66/72321 ,  B29C66/73921 ,  B29D23/003 ,  F16L13/02 ,  F16L13/0263 ,  F16L58/181 ,  F16L2201/30 ,  G01M3/02 ,  G01M3/2853

    Abstract: Improvements to electrofusion fittings that enable the integrity of a weld between an electrofusion fitting and a pipe lining (or stand-alone pipe) to be tested in the field, and corresponding methods of installation and testing. An electrofusion fitting for joining sections of lined pipe has heating elements configured to create at least one weld between the electrofusion fitting and a pipe lining, and a channel provides fluid access to a test region between the electrofusion fitting and the pipe lining to allow leak testing to be performed. The channel may be provided through the fitting itself, or alternatively through the pipe lining. Methods of fabricating or laying pipeline may incorporate use of the improved fitting whether using length-by-length construction methods or joining subsequent reel-laid or towed-in pipe lengths. A closed bevel welding approach, permitting high speed automatic pipeline welding processes to be employed, is described in which the closed bevel is drilled through to allow access there through for providing leak testing and/or electrical power to the heating elements.

    Abstract translation: 电熔配件的改进，使电熔配件与现场测试的管衬（或独立管）之间的焊接完整性，以及相应的安装和测试方法。 用于连接内衬管的部分的电融合配件具有被配置为在电熔接配件和管衬之间产生至少一个焊缝的加热元件，并且通道提供流体进入电熔接配件和管衬之间的测试区域以允许泄漏测试 被执行。 通道可以通过配件本身提供，或者通过管衬套提供。 制造或铺设管道的方法可以包括使用改进的配件，无论是使用长度施工方法还是连接随后的卷绕或拖曳的管道长度。 描述了允许使用高速自动管线焊接工艺的闭合斜面焊接方法，其中钻出闭合斜面以允许通过该斜面以便向加热元件提供泄漏测试和/或电力。

    Electrofusion fitting methods
    6.
    发明授权
    Electrofusion fitting methods 有权

    公开(公告)号：US10533690B2

    公开(公告)日：2020-01-14

    申请号：US16100106

    申请日：2018-08-09

    Applicant: Pioneer Lining Technology Limited

    Inventor： Stephen Barnes

    IPC: F16L47/03 ,  B29C65/34 ,  B29C65/82 ,  B29C65/00 ,  F16L58/18 ,  B29K101/12 ,  B29K105/00

    Abstract: The invention provides improvements to electrofusion fitting methods that allow for continuity and repeatability of welds between an electrofusion fitting and a pipe lining (or stand-alone pipe). An electrofusion fitting for joining sections of lined pipe has heating elements configured to create at least one weld between the electrofusion fitting and a pipe lining. However, prior to the weld step taking place the electrofusion fitting is heated and expands accordingly to ensure contact with the pipe lining. Preheating the electrofusion fitting also provides a predetermined starting temperature for the fitting and the lining which results in improved fusion cycle reliability. Furthermore, the need for clamps or support frames to support the electrofusion fitting in situ is removed, with corresponding reductions in cycle times, complexity, and hence cost.

    Pipe Lining Leak Testing Methods and Apparatus
    7.
    发明申请
    Pipe Lining Leak Testing Methods and Apparatus 审中-公开

    公开(公告)号：US20180231168A1

    公开(公告)日：2018-08-16

    申请号：US15752194

    申请日：2016-08-18

    Applicant: Pioneer Lining Technology Limited

    Inventor： Stephen Barnes

    IPC: F16L55/165 ,  G01M3/28

    CPC classification number: F16L55/1652 ,  B29C63/34 ,  B29C63/46 ,  F16L55/165 ,  F16L2201/30 ,  G01M3/28 ,  G01M3/2815

    Abstract: Methods and apparatus enable the integrity of a liner pipe to be quickly and effectively tested in the field, while permitting rapid removal and replacement of the liner pipe if it is compromised. The liner pipe is leak tested prior to reversion, after being pulled through a host pipe to be lined via a swaging die and while the liner pipe is still under tension. If the liner pipe exhibits a leak, it can be removed from the liner pipe immediately and, importantly, before it has expanded to contact the host pipe. Leak testing apparatus includes a packer, which seals the opposite end of the liner pipe from the end which is pulled, creating a contained fluid volume upon which the leak test is performed. The leak test may be a pressure test or a vacuum test or any other suitable test.

    Electrofusion fittings and methods
    9.
    发明授权
    Electrofusion fittings and methods 有权
    电熔配件及方法

    公开(公告)号：US09377148B2

    公开(公告)日：2016-06-28

    申请号：US14384683

    申请日：2013-03-12

    Applicant: Pioneer Lining Technology Limited

    Inventor： Stephen Barnes

    IPC: F16L47/03 ,  F16L58/18 ,  F16L13/02 ,  B29C65/34 ,  B29C65/82 ,  B29C65/00 ,  B29C65/02 ,  B29D23/00 ,  G01M3/02 ,  G01M3/28

    CPC classification number: F16L47/03 ,  B29C65/022 ,  B29C65/3432 ,  B29C65/3468 ,  B29C65/8246 ,  B29C66/1222 ,  B29C66/1224 ,  B29C66/1282 ,  B29C66/12841 ,  B29C66/12842 ,  B29C66/1286 ,  B29C66/14 ,  B29C66/232 ,  B29C66/5221 ,  B29C66/52291 ,  B29C66/52293 ,  B29C66/52296 ,  B29C66/5346 ,  B29C66/612 ,  B29C66/72321 ,  B29C66/73921 ,  B29D23/003 ,  F16L13/02 ,  F16L13/0263 ,  F16L58/181 ,  F16L2201/30 ,  G01M3/02 ,  G01M3/2853

    Abstract: Improvements to electrofusion fittings that enable the integrity of a weld between an electrofusion fitting and a pipe lining (or stand-alone pipe) to be tested in the field, and corresponding methods of installation and testing. An electrofusion fitting for joining sections of lined pipe has heating elements configured to create at least one weld between the electrofusion fitting and a pipe lining, and a channel provides fluid access to a test region between the electrofusion fitting and the pipe lining to allow leak testing to be performed. The channel may be provided through the fitting itself, or alternatively through the pipe lining. Methods of fabricating or laying pipeline may incorporate use of the improved fitting whether using length-by-length construction methods or joining subsequent reel-laid or towed-in pipe lengths. A closed bevel welding approach, permitting high speed automatic pipeline welding processes to be employed, is described in which the closed bevel is drilled through to allow access there through for providing leak testing and/or electrical power to the heating elements.

    Abstract translation: 电熔配件的改进，使电熔配件与现场测试的管衬（或独立管）之间的焊接完整性，以及相应的安装和测试方法。 用于连接内衬管的部分的电融合配件具有被配置为在电熔接配件和管衬之间产生至少一个焊接的加热元件，并且通道提供流体进入电熔接配件和管衬之间的测试区域以允许泄漏测试 被执行。 通道可以通过配件本身提供，或者通过管衬套提供。 制造或铺设管道的方法可以包括使用改进的配件，无论是使用长度施工方法还是连接随后的卷绕或拖曳的管道长度。 描述了允许使用高速自动管线焊接工艺的闭合斜面焊接方法，其中钻出闭合斜面以允许通过该斜面以便向加热元件提供泄漏测试和/或电力。

    Electrofusion fitting methods
    10.
    发明授权
    Electrofusion fitting methods 有权

    公开(公告)号：US10047892B2

    公开(公告)日：2018-08-14

    申请号：US14906217

    申请日：2014-07-03

    Applicant: PIONEER LINING TECHNOLOGY LIMITED

    Inventor： Stephen Barnes

    IPC: F16L47/03 ,  B29C65/34 ,  B29C65/82 ,  B29C65/00 ,  B29K101/12 ,  B29K105/00 ,  F16L58/18

    Abstract: The invention provides improvements to electrofusion fitting methods that allow for continuity and repeatability of welds between an electrofusion fitting and a pipe lining (or stand-alone pipe). An electrofusion fitting for joining sections of lined pipe has heating elements configured to create at least one weld between the electrofusion fitting and a pipe lining, however prior to the weld step taking place the electrofusion fitting is heated and expands accordingly to ensure contact with the pipe lining. Preheating the electrofusion fitting also provides a predetermined starting temperature for the fitting and the lining which results in improved fusion cycle reliability. Furthermore, the need for clamps or support frames to support the electrofusion fitting in situ is removed, with corresponding reductions in cycle times, complexity, and hence cost.

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