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WO2014162027A1 - Conduite pour l'acheminement de fluides - Google Patents

Conduite pour l'acheminement de fluides Download PDF

Info

Publication number
WO2014162027A1
WO2014162027A1 PCT/ES2014/070225 ES2014070225W WO2014162027A1 WO 2014162027 A1 WO2014162027 A1 WO 2014162027A1 ES 2014070225 W ES2014070225 W ES 2014070225W WO 2014162027 A1 WO2014162027 A1 WO 2014162027A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
pipe according
transported
leaks
leak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2014/070225
Other languages
English (en)
Spanish (es)
Inventor
Javier Antonio Vazquez Sanchez
David Rosa Ariza
Santiago LORENZO MAGAZ
Rosa Ana Campo Arnaiz
Marina Concepción LOSADA CASTRO
Jesus Manuel PIÑEIRO GOMEZ
Francisco Luis CUBILLO GONZALEZ
Isabel DIAZ GUZMAN
Ricardo GOMEZ MARTINEZ
Alfonso CARDENAS DOMINGUEZ
Estrella RUIZ BLANCAS
Sergio Castillo Rivera
Andres PODADERA VALENZUELA
Juan Ramon ILARREGUI TEJADA
Alvaro MARTINEZ REGUERA
Ricardo VAZQUEZ PEREZ
Juan Antonio MIGUEL PEÑA
Miguel Angel Rodriguez Perez
Jose Luis RUIZ HERRERO
Belen NOTARIO COLLADO
Javier DE MIGUEL CAMPOS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABN Pipe Systems SL
Original Assignee
ABN Pipe Systems SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABN Pipe Systems SL filed Critical ABN Pipe Systems SL
Publication of WO2014162027A1 publication Critical patent/WO2014162027A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/04—Preventing, monitoring, or locating loss by means of a signalling fluid enclosed in a double wall
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/283—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes for double-walled pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/082—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/123—Rigid pipes of plastics with or without reinforcement with four layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Definitions

  • the present invention relates to a pipe for fluid conduction, multilayer structure, composed of at least two layers, an internal one, with sufficient strength to conduct the fluid by itself and withstand the pressures and physicochemical conditions thereof, and another external, whose function will be especially to serve as a closing layer, and protection against the environment being both layers of nature impervious to the fluid to be transported.
  • the different layers that make up the tube can be made of plastic materials, metals, composites, etc.
  • the object of the invention is a pipe of the indicated type, constituted so as to be able to detect possible leaks of the fluid transported by the inner layer of the tube.
  • the tube of the invention is applicable in transport and distribution networks of any type of fluids, for example in water supply and distribution networks, especially water for human consumption.
  • Drinking water, as well as other industrial liquids or fluids, are transported in the usual way through pipe systems composed of different types of materials (plastics, metals, composites, etc.).
  • the main problem in the management and maintenance of these networks are leaks.
  • Real leaks are understood as those caused by breakages caused by third-party actions, network breakdowns or accidental breakages, due to insufficient maintenance or other causes derived from the quality of the materials or the installation techniques used.
  • Detection systems for different purposes are known, for example, from US 2009/0205733 A1, US 7 258 14 ⁇ 2, US 2009/0308475 A1 in which a detection system based on a complex multilayer system containing fiber optic sensors is described along the entire length of the pipe they monitor parameters such as pressure, temperature and flow rate to an external real-time control system. These systems are designed for critical sections of the network, rehabilitation (relining) and not for implementation in a complete network.
  • EP 1884811 A1 and EP 2 287 587 A2 a complex leak monitoring system is described providing the sensor pipe in its structure, this system is useful when the leak has occurred and tries to locate it at some point in the network, is therefore not a preventive system.
  • a pipe is known consisting of two concentric tubes between which a material that swells due to moisture is arranged and is capable of activating a leak warning cable, also arranged between the two tubes.
  • This system requires the provision of the warning cable throughout the pipe, forming part of it, and also does not provide accurate information of the point where the leak has occurred.
  • the subject of the present invention is a pipe which, by means of the introduction of information elements and / or detectors in different configurations of pipe networks, allows to have leak prevention systems that may exist in any fluid transport system.
  • Improvement in fluid management with the construction of networks that minimize losses due to leakage, illegal collection, poor general condition or maintenance of the network.
  • the pipeline of the invention will allow the monitoring and automation of all network management elements.
  • the materials that make up the pipe are optimized both mechanically and environmentally, and are more reliable.
  • the reporting elements will provide the information and capabilities for a better management of the piping system.
  • Improvement in economic performance reducing the costs associated with maintaining a network. For example, in the case of drinking water, the costs associated with the collection, purification, supply, sewerage and purification are reduced, since the network is managed and automated, which will allow it to be more efficient.
  • the main objective of the pipeline of the invention is the detection of breakages or leaks in the system, at the moment prior to the real leakage of water; the detection of unwanted intrusions in the pipe system; and the monitoring of these incidents and their knowledge in optimal time.
  • leaks should mean both actual leaks, caused for example by the rupture of the inner layer, and apparent leaks, due for example to improper or fraudulent extraction of the transport fluid.
  • the pipe of the invention also allows the water distribution system to continue operating without loss of fluid in the presence of breakage or intrusion for a suitable time, which allows carrying out the necessary actions.
  • the pipe of the invention is of the type initially indicated, being constituted in a possible embodiment by two layers, an internal one capable of conducting the fluid being transported on its own and withstanding the pressure thereof, and another external closure being both impervious to the fluid being transported.
  • the pipe has, between the two aforementioned layers, means for collecting possible leaks of the fluid transported by the inner layer, and leading them to a device for detecting the presence of said fluid. This detector device will preferably be installed in the distribution network itself.
  • the detection and knowledge of the leak is known from the beginning of the leak, which will allow for the necessary measures to be repaired before the problem that caused the leak can reach undesired proportions.
  • the inner layer will be designed to withstand the design pressure of the application to which the pipe is intended and may in turn be formed of several layers joined together in solidarity with different materials and with different properties. As an inner layer, it can also incorporate elements or substances that improve or condition the characteristics of the fluid it carries.
  • the means for collecting possible fluid leaks which will be arranged between the inner and outer layer of the pipe, are intended to serve as a primary detection element in the event of a legal leak or take.
  • the mentioned means will serve as a transport layer for the leaked fluid from the point of rupture, in which the leak occurred, to the point where the presence detectors of fluid.
  • the means responsible for collecting possible leaks when inserting an intake element, will be traversed and the water circulating through the tube will achieve the same path to the detector, as if It will be a leak.
  • the outer layer it will aim to provide an exterior finish and also serve as a closure for the means of collecting possible leaks.
  • This outer layer can also be formed by one or several layers joined together in solidarity and in any This case will be designed to withstand the existence of pressure caused by a leak in the inner layer for a short time, until it is redirected through the leak collection means.
  • the outer layer can incorporate elements that guarantee external, environmental or manipulation aggressions.
  • the pipe of the invention can be composed of only two layers, one internal and the other external, the means being constituted to collect and conduct the fluid leaks by grooves made in the external surface of the inner layer, which they will run along said layer, to the fluid detecting devices, the groove being closed by the outer layer, of a waterproof nature.
  • the channels created on the surface will serve as a means to collect the fluid leaked by the breakage or intrusion of the inner layer and lead it to the detecting elements, since the grooves will extend over the entire outer surface of the inner layer.
  • the means for collecting and conducting the fluid leaks can also consist of an intermediate layer, arranged between the inner and outer layers, composed of a structure capable of conducting possible leaks of the fluid driven by the inner layer, and leading them to the detection devices of presence of fluid.
  • the commented structure that forms the intermediate layer can be composed of nerves that delimit between the inner and outer layers passages that lead to the presence sensors of the transported fluid.
  • said ribs can form a mesh-shaped structure that will be arranged between the inner and outer layers of the pipe.
  • This mesh can be made of plastic, metal, foam, cotton, etc., the concept of mesh being understood as a system that allows the formation of holes through which the leaked fluid can travel.
  • the selection of different solutions can be derived from the type of fluid that you want to transport through the network.
  • a film type sheet can be placed on the mesh, to finally be able to extrude the outer layer of finish from the pipe.
  • the mentioned ribs of the mesh can run along the tube, with a straight or helical path.
  • the intermediate layer may be constituted based on a material that, due to the pressure of a leaking fluid transported, is deformed and delimited with the inner layer or external a channel or path capable of conducting said leak to the detecting devices. This intermediate layer will preferably be impermeable to the fluid being transported.
  • the intermediate layer could consist of a material that is incompatible with the plastic materials that make up the adjacent layers. Its mode of operation, in the event of an incident in the inner layer, is to protect the outflow of the fluid, deforming by its poor resistance to the pressure of said fluid, to open a communication channel between adjacent layers, which leads to the leak of the fluid to the detectors.
  • the pipe could include other layers, for example designed for the improvement of the mechanical or pressure resistance properties of the overall system, or another function defined by the fluid to be transported or by special installation and operating conditions.
  • a pipe is composed of consecutive sections, of a certain length, connected for example by means of intermediate sleeves.
  • the detecting devices can be installed in the connecting sleeves between consecutive sections of pipe.
  • the detecting devices may consist of at least one sensor cable that runs outside the pipeline, parallel and close to it, and that is related to said pipeline through fluid presence detector contacts.
  • the detecting devices could consist of two electrically conductive cables, isolated from each other, that run along the pipe, between the inner and outer layer and between which a short circuit would occur in the event of a leak or leakage of the transported water by the inner layer.
  • an external auxiliary conduit could be arranged, parallel to the pipe, in which additional detector systems could be housed, as well as means commonly used in the inspection of networks, for example network monitoring video cameras and others. This auxiliary conduit may or may not be integral with the main pipe.
  • Figure 1 shows in perspective a pipe constituted according to the invention.
  • Figures 2 and 3 are views similar to Figure 1 showing as many variants of execution.
  • Figure 4 shows in diametral section two sections of pipe, constituted according to the invention, connected by means of a sleeve that includes the housings for the leak detection devices.
  • Figure 5 is a view similar to Figure 4, showing a variant of the leak detection device.
  • Figure 6 and 7 are views similar to Figure 5, showing as many variants of execution.
  • Figure 8 is a cross-section of the pipe, taken along section line VIII-VIII of Figure 7.
  • Figure 9 is a section similar to Figures 6 and 7, showing another variant of execution.
  • Figure 10 is a section of the pipe, taken along the line X-X of Figure 9.
  • Figure 1 shows in perspective a portion of a pipe constituted according to the invention, composed, in its simplest structure, of two layers, an internal one (1), whose characteristics and resistance will allow the fluid to circulate on its own. through the pipe, and an outer layer (2) of closure, as a coating, which provides the external finish.
  • the layers (1 and 2) will be impermeable to the fluid being transported.
  • the pipe has means for collecting possible leaks of the fluid, which consist, according to the embodiment of Figure 1, in grooves (3) made on the outer surface of the layer (1). which are closed by the outer layer (2).
  • the outer layer (2) must be designed to be able to contain and resist, even for a certain time, the pressure caused by a leakage of the inner layer, until said leak is redirected to the detector device.
  • the grooves (3) will run along the entire length of the pipeline, serving as a means to catch or collect possible leaks of the transported fluid and lead them to a device for detecting the presence of said fluid.
  • the means for collecting possible fluid leaks consist of an intermediate structure that is arranged between the inner (1) and outer (2) layers and is constituted based on ribs (4) that define, between the inner (1) and outer (2) layers, passages that will lead to possible leaks of the transported fluid to the sensors for the presence of said fluid.
  • the ribs (4) can form a mesh-shaped structure, as shown in Figure 2 or they can run along a straight or helical path along the entire pipe.
  • the nerves (4) could also belong to the inner (1) or outer (2) layer.
  • the means for collecting and conducting the possible leaks consist of an intermediate layer (5) disposed between the internal (1) and external (2) layer and constituted of a deformable material by effect of the pressure of a leak of the transported fluid, delimiting such deformation with the internal layer or with the external layer a channel or path, not shown, capable of conducting said leakage to the detecting devices, this channel being able to adopt any configuration, but in any case running between the point where the leak occurs and the point or points where the detecting devices are located.
  • a pipe for transport and / or distribution of a fluid is composed of sections of pipe (8) connected by sleeves (7).
  • the detecting devices may consist of sensors that are housed in cavities (6) formed in the connecting sleeves (7) between consecutive sections (8) of pipe.
  • part of the outer layer (2) of the pipe will be eliminated in a section in which said means, channels (3), Figure 1; nerves (4), Figure 2; intermediate layer (5), Figure 3, reach the cavities (6) in which the detectors are housed.
  • Figure 5 shows an execution variant in which, as fluid leak detectors, RFID capsules or TAG tags (9) are used, which can be arranged, for example, in 6 ' housings that will pass through the sleeve (7) of connecting consecutive sections (8) and will make contact with the channels (3) Figure 1, nerves (4) Figure 2 or intermediate layer (5), Figure 3 that constitute the means to collect and conduct possible leaks, for which, as in the case of Figure 4, part of the outer layer (2) of the pipes will be removed.
  • RFID capsules or TAG tags 9
  • the detector device is constituted by a TAG tag
  • it may contain other information of interest, such as manufacturing, installation or network data to which it belongs, etc.
  • the TAG labels arranged in the tube or in the sleeves will be shielded in the presence of water or any other conducted liquid, this being the signal that will confirm the leakage or intrusion, for its verification a reader device will be used.
  • the RFID capsules arranged in the tube or in the sleeves can act in 2 ways; when they are arranged in the lower generatrix of the tube or accessory, the liquid transported by the tube will impede its reading when it is clamped, but in case the liquid reaches the capsule it will float passing to the upper generatrix allowing this to be read and assuming this the signal Leakage or intrusion alarm. If the capsule were arranged in the upper generatrix of the tube or accessory, it will be housed in a location that allows its reading but in the event that the conducted liquid reaches the same, the capsule will be submerged and therefore shielded which will prevent its reading and therefore It will suppose the alarm signal. In both cases, a reader device will be used for verification.
  • the sensor device housed in the cavities (6) of the connecting sleeves may be constituted so that when it receives some pressure, from a leak that has occurred through the inner layer of the pipe, it causes the circuit of the circuit to close. sensor, transmitting the alarm signal to the system controller software. Only in this case will it emit a signal because the circuit is closed. Additionally, other devices can be used as a detector device, to indicate the exact point of leakage.
  • an external, parallel auxiliary conduit can be added, which will serve to house different elements of the sensor devices.
  • the use of the external parallel duct will provide greater automation to the system, thanks to the possibility of introducing elements that can be replaced over time through this duct, even changing some initial option for others raised or future depending on the technological evolution of the transmission systems
  • FIG. 6 An exemplary embodiment is shown in Figure 6 that includes an auxiliary conduit (10) through which an antenna cable (11) runs which will automatically read the RFID capsules.
  • an optical fiber could be passed through which would allow to accurately geolocate the area of the network where an incident occurred. The moment the optical fiber undergoes a certain pressure it will cause its signal transmission mode to vary, producing a change in the wavelength and frequency that will be what the external control software interprets as leakage.
  • a sensor cable can also be arranged through the auxiliary conduit (10).
  • the housings (6) or (6 ' ) of the sleeves where the leaked fluid is conducted will cause pressure changes on the sensor cable. This will automatically detect where the leak has occurred.
  • TAG tags or RFID capsules Another possible solution would be based on the encapsulation of TAG tags or RFID capsules.
  • One of these capsules would be arranged in a sleeve housing, from which it would be dragged, in the event that a fluid leak reached said sleeve, to the detection point.
  • the capsule (13) is disposed in a housing (14) of the sleeve (7).
  • the auxiliary duct (10) Figure (8), through which it will be led, by the leaked fluid, to a control box of the network, where all identification and location data of the conduction point where the leak occurred can be read in the capsule.
  • two TAG tags or RFID capsules (13-13 ' ) are encapsulated and housed in different cavities (14-14 ' ) of the sleeve (7).
  • the novelty in this solution is the existence of an emergency RFID capsule (13 ' ) which, once the cavity (14 ' ) is flooded, rises to a vertical outlet (15) that has been designated for each sleeve. The purpose of this elevation from its initial position is to facilitate reading from the level of burial of the system to its surface.
  • the pipe of the invention can be used as a means for transporting and / or distributing different types of fluids, using in each case detecting devices that are sensitive to said fluid, so that they can detect possible leaks thereof.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Pipeline Systems (AREA)

Abstract

Conduite pour l'acheminement de fluides, constituée d'au moins deux couches, à savoir une couche interne (1) et une couche externe (2), entre lesquelles sont disposés des moyens (3) destinés à collecter les éventuelles fuites du fluide transporté par la couche interne, et à les conduire jusqu'à un dispositif de détection de la présence dudit fluide.
PCT/ES2014/070225 2013-04-03 2014-03-26 Conduite pour l'acheminement de fluides Ceased WO2014162027A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201330472A ES2503515B1 (es) 2013-04-03 2013-04-03 Tubería para conducción de fluidos.
ESP201330472 2013-04-03

Publications (1)

Publication Number Publication Date
WO2014162027A1 true WO2014162027A1 (fr) 2014-10-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2014/070225 Ceased WO2014162027A1 (fr) 2013-04-03 2014-03-26 Conduite pour l'acheminement de fluides

Country Status (2)

Country Link
ES (1) ES2503515B1 (fr)
WO (1) WO2014162027A1 (fr)

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CN104613250A (zh) * 2015-01-21 2015-05-13 柳州市颖航汽配有限公司 高压橡胶管
FR3062191A1 (fr) * 2017-01-25 2018-07-27 Saipem S.A. Soupape de pression differentielle pour conduite sous-marine de transport de fluides et piece de jonction a bride de limitation de propagation d'ecrasement comprenant une telle soupape
CN112539894A (zh) * 2019-09-20 2021-03-23 横滨橡胶株式会社 船舶用软管的流体泄漏感测系统
CN115978458A (zh) * 2022-12-15 2023-04-18 北京埃德尔黛威新技术有限公司 一种适用于热力管道泄漏检测及漏点精确定位的系统

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613250A (zh) * 2015-01-21 2015-05-13 柳州市颖航汽配有限公司 高压橡胶管
FR3062191A1 (fr) * 2017-01-25 2018-07-27 Saipem S.A. Soupape de pression differentielle pour conduite sous-marine de transport de fluides et piece de jonction a bride de limitation de propagation d'ecrasement comprenant une telle soupape
WO2018138419A1 (fr) * 2017-01-25 2018-08-02 Saipem S.A. Pièce de jonction à bride de limitation de propagation d'écrasement comprenant une soupape de pression différentielle pour conduite sous-marine de transport de fluides
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CN112539894A (zh) * 2019-09-20 2021-03-23 横滨橡胶株式会社 船舶用软管的流体泄漏感测系统
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CN115978458A (zh) * 2022-12-15 2023-04-18 北京埃德尔黛威新技术有限公司 一种适用于热力管道泄漏检测及漏点精确定位的系统

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ES2503515A2 (es) 2014-10-06
ES2503515R1 (es) 2014-11-06

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