WO2011067425A1 - Method for deploying optical fibre networks in underground piping networks - Google Patents

Method for deploying optical fibre networks in underground piping networks Download PDF

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Publication number
WO2011067425A1
WO2011067425A1 PCT/ES2009/070552 ES2009070552W WO2011067425A1 WO 2011067425 A1 WO2011067425 A1 WO 2011067425A1 ES 2009070552 W ES2009070552 W ES 2009070552W WO 2011067425 A1 WO2011067425 A1 WO 2011067425A1
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WO
WIPO (PCT)
Prior art keywords
fiber optic
networks
cables
underground
conduction
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Application number
PCT/ES2009/070552
Other languages
Spanish (es)
French (fr)
Inventor
Raul Francisco Aquiso Gutierrez
Original Assignee
Citynet España, S.A.
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Publication date
Application filed by Citynet España, S.A. filed Critical Citynet España, S.A.
Priority to ES201290046A priority Critical patent/ES2394254B1/en
Priority to PCT/ES2009/070552 priority patent/WO2011067425A1/en
Publication of WO2011067425A1 publication Critical patent/WO2011067425A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/502Installation methods in fluid conducts, e.g. pipelines
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/52Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air

Definitions

  • the present invention deals with a method for the deployment of fiber optic networks in underground conduction networks, sometimes using, for said deployment, existing collectors such as cylindrical and ovoid tubes, and being supported inside the collector by a series of Fiberglass and epoxy resin rings resistant to corrosion. Background of the invention
  • European patent EP 1 100999 discloses a procedure for laying data cable that incorporates one or more protection tubes for the accommodation of data cable in a protection strip, which impregnate with a resin, this is introduced into the pipe of conduction which is expanded within said conduction pipe, the coating used is on the protective strip that is susceptible to corrosion by elements of the medium, as we know only the fact of the impregnation by resin of the metallic elements. protects up to a certain time from corrosion, regardless of this over time the metal is attacked by oxidizing agents-reducing agents, with the complication that some anti-corrosion method such as sacrificial anodes or cathodic protection with high cost that is required.
  • the patent ES 2157654 refers to a network of fiber optic cables in which the fiber optic cables are mounted against the wall of channels or tubes not practicable, by means of fixing elements, characterized in that said fixing elements comprise means to receive at least one fiber optic cable and means for coupling to the wall of the channels or tubes.
  • the means for coupling to the wall are represented by a closed ring, made of special steel, elastically prestressed, and which is pressed against the wall of the channel or tube.
  • This invention allows the cable network to be installed; However, like other fiber optic cable networks, it has the disadvantage of using fasteners, such as Closed ring, made of special steel, which can be damaged by corrosion, also causing conduction problems.
  • the patent ES 2314250 consists of a procedure for the hardening of tubes for the reception of data cables, electrical cables and / or conductive tubes of gaseous or liquid materials, laid in municipal supply and evacuation pipes or pipes and fixed to the inner face of the pipe by means of a textile fixing strip with a thermosetting matrix, by means of a hot medium, where the hot medium is passed, after the oppression against the wall of the pipe or the channeling of the strip with at least one tube housed therein, through said tube.
  • the present invention consists of a new procedure for the deployment of fiber optic networks in underground conduction networks, avoiding the current problems of corrosion and deterioration of the materials introduced into the pipeline to carry out the laying of the fiber optic network
  • the invention establishes a fiber optic link between an origin point and a destination point using the urban sanitation network or any other type of existing network available, using existing collectors such as cylindrical or ovoid tubes for said deployment. In this way, it allows to install the infrastructure that will support the fiber cables, even in those conduits where the operator cannot access. Inside the conduction, the assembly will be carried out by pneumatic devices type SAM, which are directed manually to the place of installation.
  • the deployment of the fiber optic link is made by placing a series of corrosion resistant material conduits in which the fiber optic cables will be housed, or directly by using fiber optic cables adapted for such finish. Regardless of the fiber system to be used, either the conduits or the direct fiber optic cables, they will be supported inside the collector by a series of rings formed by corrosion resistant glass fiber and epoxy resin. Said rings are fixed under pressure inside the manifold by using the SAM type pneumatic device, and in said ring fixing and expansion process, the conduits or cables previously deployed inside the manifold are supported and fixed by said ring.
  • a gutter tube will be installed, where said gutter tube is corrugated, robust and highly flexible, which allows it to adapt smoothly to the generally curved walls of the wells or manholes.
  • This gutter tube has the property of being able to open in the channel and subsequently be able to close for easy installation of fiber optic cables inside.
  • the tube can have different diameters and various fixing means that adapt to its size.
  • the gutter tube will be a semi-crystalline thermoplastic, which has a good mechanical resistance, toughness and high impact resistance, against fire it is self-extinguishing, is free of halogens and cadmium and has a working temperature range of -40 up to approximately 130 ° C, it is resistant to chemical agents such as: fuels, mineral oils, fats, bleach, weak acids, etc.
  • This gutter tube has its best application when the wiring already exists, this is when the wiring is prior to the laying of the gutter tube, since it has the particularity as stated above of being able to open in the channel and house a previously installed cable; If there is no wiring, it allows you to work faster, this is optimizing the cable laying time, since it has the advantage due to its flexibility, of laying the cable straight through the inside of the log wells, being possible later Insert the cable inside the gutter tube in all the wells where the cable has passed.
  • the fiber optic cable will be installed directly using a series of fixing elements that will help to fix and adapt said cable to the walls in the correct position inside the manhole.
  • the conduits used for the deployment of fiber optic cables can have a variable diameter depending on the use you want to give and the morphology of the urban network we want to use. Said ducts must have good mechanical resistance, high impact resistance, toughness and good sliding behavior.
  • anchoring anchors are used at the respective ends of the collector, that is, at the mouth of the collector with the well or register. Said anchoring anchors are stainless steel parts designed to hold the conduits or the fiber optic cables depending on the type of installation to be performed. These anchors are fixed to the wall or some fixed element of the well or of the register by means of a plurality of screws, leaving the lower part inside the mouth of the collector.
  • the lower part has two plates with a plurality of holes through which the conduits or the fiber optic cable penetrate. Said plates, after their mechanical tightening, exert the necessary pressure to withstand the tension applied to the conduits or the fiber optic cables.
  • the installation procedure of the invention requires a first stage of supervision and cleaning of pipes, verifying its good condition, distances, the position of the connections, wells or registers, as well as determining precisely the installation position of the rings, where all this will be done through an inspection robot.
  • the laying of the conduit or the fiber optic cable will be carried out manually, once said laying is done and before installing the rings the installation of the gutter tube or the fixation of the fiber optic cable will be performed in the wells and registers through which the network to be installed passes. Then the conduit will be tensioned or the fiber optic cable between the wells or logs and fixed with the help of the anchors previously installed by passing said conduits or cables through the holes of the fixing anchor plates.
  • the rings will be installed inside the ducts of the urban network, leaving the infrastructure supported by these rings.
  • Figure 1 shows in schematic different phases of the described process, where the conduction through which the cables are to run is observed, in Figure 1 a the fiber optic cable is initially observed, tensioned and before placing the ring, Figure 1b shows the placement of the ring through the pneumatic device, and Figure 1c shows the resin already positioned and expanded, so that the cables remain on the inside, where there is no contact of said cables with the circulating elements of the duct, with the exception of the ring and the inner wall of the duct.
  • Figure 2 shows a cross-sectional view of a conduit to which the ring described in the process of the invention has been applied, where three fiber optic cables have been placed.
  • Figure 3.- shows a cross-sectional view of a conduit to which the ring described in the process of the invention has been applied, where a single fiber optic cable has been placed.
  • Figure 4.- shows a view of a possible preferred embodiment of the tensioning elements used in the process of the invention.
  • the present invention consists of a process for the deployment of fiber optic networks in underground conduction networks, comprising the following steps:
  • step (c) positioning, tensioning and fixing of the fiber optic cables (1) assembled through the tensioning elements (4) installed in step (a)
  • clamping rings (3) are of vital importance. They are formed by fiberglass and epoxy resin, and as already stated above, these rings (3) are resistant to corrosion. They support the fiber optic cables (1), these rings (3) being the only ones in contact with the circulating elements by the conduction, and avoiding the deterioration of the cables and other components They remain attached to the internal surface of the pipe forming a kind of mass, which prevents the transfer of the circulating elements to the fiber optic cables (1).
  • the fiber optic cables (1) can be installed directly inside the conduit, or they can each be inserted in an appropriate support, made of corrosion resistant material.
  • a gutter pipe is installed, after having laid the cables (1) and before the installation of the ring (3), where said gutter tube is corrugated, robust and flexible, which adapts to the walls of the conduction, and that opens and closes in canal.

Abstract

The invention relates to a method for deploying optical fibre networks in underground piping networks, which includes the following steps: (a) installing and fastening tensioning elements (4) at the ends of the underground pipe; (b) introducing at least one optical fibre cable (1) in the pipe; (c) positioning, tightening and fastening the cables by means of the tensioning elements (4); (d) inserting and expanding a pneumatic device (2) inside the underground pipe, said pneumatic device containing rings (3) of fibreglass impregnated with the resin; (e) setting the resin and creating a joining or supporting structure for the optical fibre cable (1); and (f) installing and fastening the optical fibre cable (1) on the partial circumference of the manholes through which said cable passes.

Description

PROCEDIMIENTO PARA EL DESPLIEGUE DE REDES DE FIBRA ÓPTICA EN REDES DE CONDUCCIÓN SUBTERRÁNEA  PROCEDURE FOR THE DEPLOYMENT OF OPTICAL FIBER NETWORKS IN UNDERGROUND DRIVING NETWORKS
DESCRIPCIÓN DESCRIPTION
Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea Procedure for the deployment of fiber optic networks in underground conduction networks
Objeto de la invención Object of the invention
La presente invención trata de un procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, utilizando en ocasiones, para dicho despliegue, los colectores existentes como tubos cilindricos y ovoides, y estando soportados en el interior del colector por una serie de anillos de fibra de vidrio y resina epóxica resistentes a la corrosión. Antecedentes de la invención The present invention deals with a method for the deployment of fiber optic networks in underground conduction networks, sometimes using, for said deployment, existing collectors such as cylindrical and ovoid tubes, and being supported inside the collector by a series of Fiberglass and epoxy resin rings resistant to corrosion. Background of the invention
Desde hace algún tiempo, se conocen diversos procedimientos para el tendido de cables de transmisión de datos, de fibra óptica, en conducciones subterráneas como tuberías de aguas residuales y otras. Estas instalaciones de cables de comunicaciones conllevan enormes costos. Inicialmente se introducían los cables de fibra óptica mediante distintos elementos de fijación mecánicos directamente a la tubería. Sin embargo, en el interior de estas conducciones existen multitud de agentes químicos que pueden provocar la degradación de los cables de transmisión, así como también pueden provocar su deterioro diferentes tareas de limpieza. Esto ha llevado a la búsqueda de nuevos métodos que eviten el deterioro de los cables de transmisión de datos, como por ejemplo, la introducción de dichos cables en tubos flexibles, de modo que queden protegidos contra efectos químicos y mecánicos. Sin embargo, estos medios de protección o sujeción de los cables, también sufren deterioros. For some time, various procedures have been known for laying data transmission cables, fiber optic cables, in underground pipes such as sewage pipes and others. These communications cable installations carry huge costs. Initially the fiber optic cables were introduced by different mechanical fasteners directly to the pipe. However, inside these pipes there are many chemical agents that can cause the degradation of the transmission cables, as well as different cleaning tasks. This has led to the search for new methods that prevent the deterioration of data transmission cables, such as the introduction of said cables into flexible tubes, so that they are protected against chemical and mechanical effects. However, these means of protection or clamping of the cables also suffer deterioration.
La patente europea EP 1 100999 revela un procedimiento para el tendido de cable de datos que incorpora uno o varios tubos de protección para el alojamiento de cable de datos en una tira de protección, la cual impregnan con una resina, esta es introducida en la tubería de conducción la cual es expandida dentro de dicha tubería de conducción, el revestimiento utilizado se encuentra sobre la tira de protección que es susceptible de sufrir corrosión por elementos del medio, como bien sabemos el solo hecho de la impregnación por resina de los elementos metálicos los protege hasta un cierto tiempo de la corrosión, independientemente de esto con el tiempo el metal es atacado por agentes oxidantes-reductores del medio, con la complicación de que se requiere de algún método anti corrosión como los ánodos de sacrificio o la protección catódica con elevado coste que se requiere. European patent EP 1 100999 discloses a procedure for laying data cable that incorporates one or more protection tubes for the accommodation of data cable in a protection strip, which impregnate with a resin, this is introduced into the pipe of conduction which is expanded within said conduction pipe, the coating used is on the protective strip that is susceptible to corrosion by elements of the medium, as we know only the fact of the impregnation by resin of the metallic elements. protects up to a certain time from corrosion, regardless of this over time the metal is attacked by oxidizing agents-reducing agents, with the complication that some anti-corrosion method such as sacrificial anodes or cathodic protection with high cost that is required.
La patente ES 2157654 se refiere a una red de cables de fibra óptica en la que los cables de fibra óptica van montados contra la pared de canales o tubos no practicables, por medio de elementos de fijación, caracterizada porque los citados elementos de fijación comprenden medios para recibir al menos un cable de fibra óptica y medios para acoplamiento a la pared de los canales o tubos. Los medios para acoplamiento a la pared están representados por un anillo cerrado, realizado con acero especial, elásticamente pretensado, y que se comprime contra la pared del canal o tubo. Esta invención permite instalar la red de cables; sin embargo, al igual que otras redes de cables de fibra óptica, presenta el inconveniente de utilizar elementos de fijación, como el anillo cerrado, de acero especial, que se puede deteriorar por la corrosión, provocando también problemas en la conducción. The patent ES 2157654 refers to a network of fiber optic cables in which the fiber optic cables are mounted against the wall of channels or tubes not practicable, by means of fixing elements, characterized in that said fixing elements comprise means to receive at least one fiber optic cable and means for coupling to the wall of the channels or tubes. The means for coupling to the wall are represented by a closed ring, made of special steel, elastically prestressed, and which is pressed against the wall of the channel or tube. This invention allows the cable network to be installed; However, like other fiber optic cable networks, it has the disadvantage of using fasteners, such as Closed ring, made of special steel, which can be damaged by corrosion, also causing conduction problems.
La patente ES 2314250 consiste en un procedimiento para el endurecimiento de tubos para la recepción de cables de datos, cables eléctricos y/o tubos conductores de materias gaseosas o líquidas, tendidos en tuberías o canalizaciones de alimentación y evacuación municipales y fijados a la cara interior de la tubería por medio de una tira de fijación textil con una matriz termoendurecible, mediante un medio caliente, donde el medio caliente es hecho pasar, después de la opresión contra la pared de la tubería o de la canalización de la tira con al menos un tubo alojado en la misma, a través de dicho tubo. The patent ES 2314250 consists of a procedure for the hardening of tubes for the reception of data cables, electrical cables and / or conductive tubes of gaseous or liquid materials, laid in municipal supply and evacuation pipes or pipes and fixed to the inner face of the pipe by means of a textile fixing strip with a thermosetting matrix, by means of a hot medium, where the hot medium is passed, after the oppression against the wall of the pipe or the channeling of the strip with at least one tube housed therein, through said tube.
De este modo, y viendo los sistemas actuales de tendido de redes de cables de datos, en lo que los materiales utilizados o los propios tubos pueden sufrir deterioro, se intenta encontrar un método que permita el tendido de los cables a través de este tipo de tuberías sin sufrir daños químicos o mecánicos de por un lado, los cables de comunicación, y por otro lado, los medios de fijación a la tubería y protección de los citados cables, evitando así el elevado coste que implica utilizar métodos anti-corrosión o sustitución de las anillas metálicas propensas a corrosión. In this way, and looking at the current systems of laying data cable networks, in which the materials used or the tubes themselves can suffer deterioration, an attempt is made to find a method that allows the cables to be laid through this type of pipes without suffering chemical or mechanical damage on the one hand, communication cables, and on the other hand, the means of fixing to the pipe and protection of said cables, thus avoiding the high cost of using anti-corrosion or replacement methods of corrosion-prone metal rings.
Descripción de la invención La presente invención consiste en un nuevo procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, evitando los problemas actuales existentes de corrosión y deterioro de los materiales introducidos en la tubería para llevar a cabo el tendido de la red de fibra óptica. La invención establece un enlace de fibra óptica entre un punto de origen y un punto de destino utilizando la red de saneamiento urbano o cualquier otro tipo de red existente disponible, utilizando para dicho despliegue los colectores existentes como tubos cilindricos u ovoides. De este modo, permite instalar la infraestructura que sustentará los cables de fibra, incluso en aquellas conducciones donde el operario no pueda acceder. En el interior de la conducción, el montaje lo realizarán dispositivos neumáticos tipo SAM, que se dirigen de forma manual hasta el lugar de la instalación. El despliegue del enlace de fibra óptica se realiza mediante la colocación de una serie de conductos de material resistente a la corrosión en el cual se alojarán los cables de fibra óptica, o bien de forma directa mediante el uso de cables de fibra óptica adaptados para tal fin. Independientemente del sistema de fibra a utilizar, bien los conductos o bien los cables directos de fibra óptica, estarán soportados en el interior del colector por una serie de anillos formados por fibra de vidrio y resina epóxica resistentes a la corrosión. Dichos anillos se fijan a presión en el interior del colector mediante el uso del dispositivo neumático tipo SAM, y en dicho proceso de fijación y expansión del anillo, los conductos o cables previamente desplegados en el interior del colector quedan sustentados y fijados por dicho anillo. DESCRIPTION OF THE INVENTION The present invention consists of a new procedure for the deployment of fiber optic networks in underground conduction networks, avoiding the current problems of corrosion and deterioration of the materials introduced into the pipeline to carry out the laying of the fiber optic network The invention establishes a fiber optic link between an origin point and a destination point using the urban sanitation network or any other type of existing network available, using existing collectors such as cylindrical or ovoid tubes for said deployment. In this way, it allows to install the infrastructure that will support the fiber cables, even in those conduits where the operator cannot access. Inside the conduction, the assembly will be carried out by pneumatic devices type SAM, which are directed manually to the place of installation. The deployment of the fiber optic link is made by placing a series of corrosion resistant material conduits in which the fiber optic cables will be housed, or directly by using fiber optic cables adapted for such finish. Regardless of the fiber system to be used, either the conduits or the direct fiber optic cables, they will be supported inside the collector by a series of rings formed by corrosion resistant glass fiber and epoxy resin. Said rings are fixed under pressure inside the manifold by using the SAM type pneumatic device, and in said ring fixing and expansion process, the conduits or cables previously deployed inside the manifold are supported and fixed by said ring.
Entre tramo y tramo de conducción urbana nuestra infraestructura debe pasar por pozos o arquetas de registro. En estos puntos característicos de la red urbana y en el caso de usar los colectores conocidos para el despliegue de la red de conductos y no el cable de fibra óptica de forma directa, se instalará un tubo canaleta, donde dicho tubo de canaleta es corrugado, robusto y altamente flexible, lo que le permite adaptarse sin problemas a las paredes generalmente curvas de los pozos o arquetas de registro. Este tubo de canaleta presenta la propiedad de poder abrirse en canal y posteriormente poder cerrarse para la fácil instalación de los cables de fibra óptica en su interior. El tubo puede tener diferentes diámetros y diversos medios de fijación que se adaptan a su tamaño. El tubo de canaleta será un termoplástico semi-cristalino, que posee una buena resistencia mecánica, tenacidad y elevada resistencia al impacto, frente al fuego es auto extinguible, es exento de halógenos y de cadmio y tiene un rango de temperaturas de trabajo de -40 hasta aproximadamente 130°C, es resistente a agentes químicos como: carburantes, aceites minerales, grasas, lejía, ácidos débiles, etc. Este tubo de canaleta tiene su mejor aplicación cuando el cableado ya existe, esto es cuando el cableado es anterior a la puesta del tubo de canaleta, ya que tiene la particularidad como se dijo más arriba de poder abrirse en canal y albergar en su interior un cable previamente instalado; en caso que no exista cableado permite trabajar con mayor rapidez, esto es optimizando el tiempo de tendido del cable, ya que tiene la ventaja debido a su flexibilidad, de tender el cable pasando en recto por el interior de los pozos de registro siendo posible posteriormente introducir el cable en el interior del tubo de canaleta en todos los pozos por donde el cable ha pasado. En el segundo caso, es decir, cuando se usa el cable de fibra óptica de forma directa, en dichos puntos característicos, pozos o registros, se instalará el cable de fibra óptica de forma directa utilizando para ello una serie de elementos de fijación que ayudarán a fijar y adaptar dicho cable a las paredes en la posición correcta dentro del pozo de registro. Between section and section of urban driving, our infrastructure must pass through wells or registration boxes. At these characteristic points of the urban network and in the case of using the known collectors for the deployment of the conduit network and not the fiber optic cable directly, a gutter tube will be installed, where said gutter tube is corrugated, robust and highly flexible, which allows it to adapt smoothly to the generally curved walls of the wells or manholes. This gutter tube has the property of being able to open in the channel and subsequently be able to close for easy installation of fiber optic cables inside. The tube can have different diameters and various fixing means that adapt to its size. The gutter tube will be a semi-crystalline thermoplastic, which has a good mechanical resistance, toughness and high impact resistance, against fire it is self-extinguishing, is free of halogens and cadmium and has a working temperature range of -40 up to approximately 130 ° C, it is resistant to chemical agents such as: fuels, mineral oils, fats, bleach, weak acids, etc. This gutter tube has its best application when the wiring already exists, this is when the wiring is prior to the laying of the gutter tube, since it has the particularity as stated above of being able to open in the channel and house a previously installed cable; If there is no wiring, it allows you to work faster, this is optimizing the cable laying time, since it has the advantage due to its flexibility, of laying the cable straight through the inside of the log wells, being possible later Insert the cable inside the gutter tube in all the wells where the cable has passed. In the second case, that is, when the fiber optic cable is used directly, at said characteristic points, wells or registers, the fiber optic cable will be installed directly using a series of fixing elements that will help to fix and adapt said cable to the walls in the correct position inside the manhole.
Los conductos utilizados para el despliegue de los cables de fibra óptica pueden tener un diámetro variable dependiendo del uso que se le quiera dar y la morfología de la red urbana que queramos utilizar. Dichos conductos han de poseer buena resistencia mecánica, elevada resistencia al impacto, tenacidad y buen comportamiento al deslizamiento. Para una correcta instalación es necesario lograr un tensado inicial de los conductos o bien de los cables de fibra óptica cuando su uso es directo; para ello se usan unas anclas de sujeción en los respectivos extremos del colector, es decir, en la boca del colector con el pozo o registro. Dichas anclas de sujeción son piezas de acero inoxidable diseñadas para sujetar los conductos o bien los cables de fibra óptica dependiendo del tipo de instalación a realizar. Estas anclas se fijan a la pared o algún elemento fijo del pozo o del registro mediante una pluralidad de tornillos, dejando la parte inferior en el interior de la boca del colector. La parte inferior dispone de dos pletinas con una pluralidad de orificios por los cuales penetran los conductos o bien el cable de fibra óptica. Dichas pletinas, tras su apriete mecánico ejercen la presión necesaria para aguantar la tensión aplicada a los conductos o a los cables de fibra óptica. El procedimiento de instalación de la invención requiere una primera etapa de supervisión y limpieza de canalizaciones, verificar su buen estado, las distancias, la posición de las acometidas, los pozos o registros, así como determinar con precisión la posición de instalación de los anillos, donde todo ello se hará por medio de un robot de inspección. The conduits used for the deployment of fiber optic cables can have a variable diameter depending on the use you want to give and the morphology of the urban network we want to use. Said ducts must have good mechanical resistance, high impact resistance, toughness and good sliding behavior. For proper installation it is necessary to achieve an initial tension of the conduits or of the fiber optic cables when their use is direct; for this purpose, anchoring anchors are used at the respective ends of the collector, that is, at the mouth of the collector with the well or register. Said anchoring anchors are stainless steel parts designed to hold the conduits or the fiber optic cables depending on the type of installation to be performed. These anchors are fixed to the wall or some fixed element of the well or of the register by means of a plurality of screws, leaving the lower part inside the mouth of the collector. The lower part has two plates with a plurality of holes through which the conduits or the fiber optic cable penetrate. Said plates, after their mechanical tightening, exert the necessary pressure to withstand the tension applied to the conduits or the fiber optic cables. The installation procedure of the invention requires a first stage of supervision and cleaning of pipes, verifying its good condition, distances, the position of the connections, wells or registers, as well as determining precisely the installation position of the rings, where all this will be done through an inspection robot.
En una segunda etapa es necesaria la colocación de las anclas de sujeción del conducto o cable de fibra óptica en los pozos o registros, en el ángulo determinado con el fin de evitar las acometidas previamente registradas. In a second stage it is necessary to place the anchoring anchors of the conduit or fiber optic cable in the wells or logs, at the angle determined in order to avoid the previously registered connections.
En una tercera etapa, se realizará de forma manual el tendido del conducto o bien del cable de fibra óptica, una vez realizado dicho tendido y antes de instalar los anillos se realizará la instalación del tubo de canaleta o bien la fijación del cable de fibra óptica en los pozos y registros por los cuales pasa la red a instalar. Después se tensará el conducto o bien el cable de fibra óptica entre los pozos o registros y se fijarán con la ayuda de las anclas previamente instaladas haciendo pasar dichos conductos o cables por los orificios de las pletinas del ancla de fijación. In a third stage, the laying of the conduit or the fiber optic cable will be carried out manually, once said laying is done and before installing the rings the installation of the gutter tube or the fixation of the fiber optic cable will be performed in the wells and registers through which the network to be installed passes. Then the conduit will be tensioned or the fiber optic cable between the wells or logs and fixed with the help of the anchors previously installed by passing said conduits or cables through the holes of the fixing anchor plates.
En una cuarta etapa final, se procederá a la instalación de los anillos en el interior de los conductos de la red urbana, quedando así la infraestructura sostenida por dichas anillas. In a fourth final stage, the rings will be installed inside the ducts of the urban network, leaving the infrastructure supported by these rings.
Descripción de los dibujos Para completar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de la realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: Description of the drawings To complete the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of the practical realization thereof, an integral part of said description is attached, an set of drawings in which, with an illustrative and non-limiting nature, the following has been represented:
La Figura 1 .- muestra en esquema diferentes fases del proceso descrito, donde se observa la conducción por la que han de discurrir los cables, en la Figura 1 a se observa el cable de fibra óptica inicialmente, tensado y antes de colocar el anillo, en la Figura 1 b se observa la colocación del anillo a través del dispositivo neumático, y en la Figura 1 c se observa la resina ya posicionada y expandida, de modo que los cables quedan por la parte interior, donde no existe contacto de dichos cables con los elementos circulantes del conducto, a excepción del anillo y la pared interior del conducto. La Figura 2.- muestra una vista transversal de un conducto al que se le ha aplicado el anillo descrito en el proceso de la invención, donde se han colocado tres cables de fibra óptica. Figure 1 .- shows in schematic different phases of the described process, where the conduction through which the cables are to run is observed, in Figure 1 a the fiber optic cable is initially observed, tensioned and before placing the ring, Figure 1b shows the placement of the ring through the pneumatic device, and Figure 1c shows the resin already positioned and expanded, so that the cables remain on the inside, where there is no contact of said cables with the circulating elements of the duct, with the exception of the ring and the inner wall of the duct. Figure 2 shows a cross-sectional view of a conduit to which the ring described in the process of the invention has been applied, where three fiber optic cables have been placed.
La Figura 3.- muestra una vista transversal de un conducto al que se ha aplicado el anillo descrito en el proceso de la invención, donde se ha colocado un único cable de fibra óptica. La Figura 4.- muestra una vista de una posible realización preferente de los elementos tensores utilizados en el proceso de la invención. Realización preferente de la invención Figure 3.- shows a cross-sectional view of a conduit to which the ring described in the process of the invention has been applied, where a single fiber optic cable has been placed. Figure 4.- shows a view of a possible preferred embodiment of the tensioning elements used in the process of the invention. Preferred Embodiment of the Invention
La presente invención consiste en un procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, que comprende las siguientes etapas: The present invention consists of a process for the deployment of fiber optic networks in underground conduction networks, comprising the following steps:
(a) Instalación y fijación de elementos tensores (4) en los extremos de la conducción subterránea (a) Installation and fixing of tensioning elements (4) at the ends of the underground conduit
(b) introducción de al menos un cable de fibra óptica (1 ) armados en la conducción  (b) introduction of at least one fiber optic cable (1) armed in conduction
(c) posicionamiento, tensado y fijación de los cables de fibra óptica (1 ) armados a través de los elementos tensores (4) instalados en la etapa (a)  (c) positioning, tensioning and fixing of the fiber optic cables (1) assembled through the tensioning elements (4) installed in step (a)
(d) Introducción y expansión en el interior de la conducción subterránea de un dispositivo neumático (2) que contiene unos anillos (3) de fibra de vidrio impregnados en la resina, hasta el pleno apoyo del anillo (3) con el cable de fibra óptica (1 ), fijándolo a presión  (d) Introduction and expansion inside the underground conduit of a pneumatic device (2) that contains fiberglass rings (3) impregnated in the resin, to the full support of the ring (3) with the fiber cable optics (1), fixing it under pressure
(e) Endurecimiento de la resina y creación de una estructura de unión o soporte para el cable de fibra óptica (1 )  (e) Resin hardening and creation of a connection or support structure for the fiber optic cable (1)
(f) Instalación y fijación del cable de fibra óptica (1 ) sobre la circunferencia parcial de los pozos de registro por los que discurre.  (f) Installation and fixing of the fiber optic cable (1) over the partial circumference of the manholes through which it runs.
En este procedimiento los anillos (3) de sujeción tienen una importancia vital. Están formados por fibra de vidrio y resina epóxica, y como ya se ha dicho anteriormente, estos anillos (3) son resistentes a la corrosión. Sustentan los cables de fibra óptica (1 ), siendo estos anillos (3) los únicos en contacto con los elementos circulantes por la conducción, y evitando el deterioro de los cables y demás componentes. Quedan adheridos a la superficie interna de la tubería formando una especie de masa, que impide el traspaso de los elementos circulantes hacia los cables (1 ) de fibra óptica. Los cables (1 ) de fibra óptica pueden instalarse directamente en el interior de la conducción, o bien pueden estar introducidos cada uno de ellos en un soporte apropiado, fabricado en material resistente a la corrosión. In this procedure the clamping rings (3) are of vital importance. They are formed by fiberglass and epoxy resin, and as already stated above, these rings (3) are resistant to corrosion. They support the fiber optic cables (1), these rings (3) being the only ones in contact with the circulating elements by the conduction, and avoiding the deterioration of the cables and other components They remain attached to the internal surface of the pipe forming a kind of mass, which prevents the transfer of the circulating elements to the fiber optic cables (1). The fiber optic cables (1) can be installed directly inside the conduit, or they can each be inserted in an appropriate support, made of corrosion resistant material.
En los pozos y arquetas de registro se instala un tubo canaleta, después de haber realizado el tendido de los cables (1 ) y antes de la instalación del anillo (3), donde dicho tubo canaleta es corrugado, robusto y flexible, que se adapta a las paredes de la conducción, y que se abre y cierra en canal. In the wells and manholes, a gutter pipe is installed, after having laid the cables (1) and before the installation of the ring (3), where said gutter tube is corrugated, robust and flexible, which adapts to the walls of the conduction, and that opens and closes in canal.
Los elementos tensores (4) instalados en la etapa a) del procedimiento consisten en unas anclas de sujeción en los extremos del conducto, fabricadas en acero inoxidable. The tensioning elements (4) installed in step a) of the process consist of anchoring anchors at the ends of the duct, made of stainless steel.

Claims

REIVINDICACIONES
1 .- Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, caracterizado porque comprende las siguientes etapas: 1 .- Procedure for the deployment of fiber optic networks in underground conduction networks, characterized in that it comprises the following stages:
(a) instalación y fijación de elementos tensores (4) en los extremos de la conducción subterránea (a) installation and fixing of tensioning elements (4) at the ends of the underground conduit
(b) introducción de al menos un cable de fibra óptica (1 ) armado en la conducción  (b) introduction of at least one fiber optic cable (1) reinforced in conduction
(c) posicionamiento, tensado y fijación de los cables de fibra óptica (1 ) armados a través de los elementos tensores (4) instalados en la etapa (d) Introducción y expansión en el interior de la conducción subterránea de un dispositivo neumático (2) que contiene unos anillos (3) de fibra de vidrio impregnados en la resina, hasta el pleno apoyo del anillo (3) con el cable de fibra óptica (1 ), fijándolo a presión  (c) positioning, tensioning and fixing of the fiber optic cables (1) assembled through the tensioning elements (4) installed in step (d) Introduction and expansion inside the underground conduction of a pneumatic device (2) ) which contains fiberglass rings (3) impregnated in the resin, to the full support of the ring (3) with the fiber optic cable (1), fixing it under pressure
(e) Endurecimiento de la resina y creación de una estructura de unión o soporte para el cable de fibra óptica (1 )  (e) Resin hardening and creation of a connection or support structure for the fiber optic cable (1)
(f) Instalación y fijación del cable de fibra óptica (1 ) sobre la circunferencia parcial de los pozos de registro por los que discurre.  (f) Installation and fixing of the fiber optic cable (1) over the partial circumference of the manholes through which it runs.
2.- Procedimiento para le despliegue de redes de fibra óptica en redes de conducción subterránea, según reivindicación 1 , caracterizado porque los anillos (3) que sustentan los cables (1 ) de fibra óptica en el interior de la conducción están formados por fibra de vidrio y resina epóxica resistente a la corrosión. 2. Procedure for the deployment of fiber optic networks in underground conduction networks, according to claim 1, characterized in that the rings (3) that support the fiber optic cables (1) inside the conduit are formed by fiber of glass and corrosion resistant epoxy resin.
3. - Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, según reivindicaciones anteriores, caracterizado porque previamente a la introducción de cada uno de los cables (1 ) de fibra óptica en la conducción, se introduce cada uno de estos cables (1 ) en un conducto de soporte apropiado. 3. - Procedure for the deployment of fiber optic networks in underground conduction networks, according to previous claims, characterized in that prior to the introduction of each of the fiber optic cables (1) in the conduction, each of these is introduced cables (1) in an appropriate support conduit.
4. - Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, según reivindicación 3, caracterizado porque los conductos de soporte se fabrican en material resistente a la corrosión. 4. - Procedure for the deployment of fiber optic networks in underground conduction networks, according to claim 3, characterized in that the support ducts are made of corrosion resistant material.
5. - Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, según reivindicaciones anteriores, caracterizado porque en los pozos y arquetas de registro se instala un tubo canaleta, después de haber realizado el tendido de los cables y antes de la instalación del anillo de resina, donde dicho tubo canaleta es corrugado, robusto y flexible, que se adapta a las paredes de la conducción, que se abre en canal y se cierra. 5. - Procedure for the deployment of fiber optic networks in underground conduction networks, according to previous claims, characterized in that a gutter pipe is installed in the wells and manholes, after having laid the cables and before the installation of the resin ring, where said pipe channel is corrugated, robust and flexible, which adapts to the walls of the conduit, which opens in the channel and closes.
6.- Procedimiento para el despliegue de redes de fibra óptica en redes de conducción subterránea, según reivindicación 1 , caracterizado porque los elementos tensores consisten en unas anclas de sujeción en los extremos del conducto, fabricadas en acero inoxidable. 6. Procedure for the deployment of fiber optic networks in underground conduction networks, according to claim 1, characterized in that the tensioning elements consist of anchoring anchors at the ends of the duct, made of stainless steel.
PCT/ES2009/070552 2009-12-03 2009-12-03 Method for deploying optical fibre networks in underground piping networks WO2011067425A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201290046A ES2394254B1 (en) 2009-12-03 2009-12-03 PROCEDURE FOR THE DEPLOYMENT OF OPTICAL FIBER NETWORKS IN UNDERGROUND DRIVING NETWORKS
PCT/ES2009/070552 WO2011067425A1 (en) 2009-12-03 2009-12-03 Method for deploying optical fibre networks in underground piping networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070552 WO2011067425A1 (en) 2009-12-03 2009-12-03 Method for deploying optical fibre networks in underground piping networks

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954016A (en) * 1988-04-13 1990-09-04 Oy Wiik & Hoglund Ag Sewer pipe relining method
JPH04238302A (en) * 1991-01-23 1992-08-26 Tokyo Met Gov Gesuidou Service Kk Method for laying optical cable to sewerage and drain pipeline
EP1006638A2 (en) * 1998-12-02 2000-06-07 Claudia Preuss Method for laying cables and distribution lines in the ground
US20010010781A1 (en) * 1998-07-30 2001-08-02 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
US20010019122A1 (en) * 2000-02-04 2001-09-06 Ernst Mayr Method for drawing cables into cable channels or pipes
US20010043839A1 (en) * 1998-07-30 2001-11-22 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
US6377734B1 (en) * 1998-03-12 2002-04-23 Ernst Mayr Cable network in a system of ducts and pipes having a flowing media and a method of securing the network in the system
US20030021633A1 (en) * 2000-08-07 2003-01-30 Ichiro Seto Method and structure for laying communication cable in underground line, and members used for laying

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954016A (en) * 1988-04-13 1990-09-04 Oy Wiik & Hoglund Ag Sewer pipe relining method
JPH04238302A (en) * 1991-01-23 1992-08-26 Tokyo Met Gov Gesuidou Service Kk Method for laying optical cable to sewerage and drain pipeline
US6377734B1 (en) * 1998-03-12 2002-04-23 Ernst Mayr Cable network in a system of ducts and pipes having a flowing media and a method of securing the network in the system
US20010010781A1 (en) * 1998-07-30 2001-08-02 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
US20010043839A1 (en) * 1998-07-30 2001-11-22 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
EP1006638A2 (en) * 1998-12-02 2000-06-07 Claudia Preuss Method for laying cables and distribution lines in the ground
US20010019122A1 (en) * 2000-02-04 2001-09-06 Ernst Mayr Method for drawing cables into cable channels or pipes
US20030021633A1 (en) * 2000-08-07 2003-01-30 Ichiro Seto Method and structure for laying communication cable in underground line, and members used for laying

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