巴西专利BR112014022772B1 multilayer piping of polymeric material and device and method for making multilayer piping

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专利摘要:
MULTIPLE LAYER PIPING OF POLYMERIC MATERIAL AND DEVICE AND METHOD FOR MANUFACTURING MULTIPLE LAYER PIPE. The present invention is related to a multilayer pipe (1), which includes at least: - a fluid-tight inner layer (11) which consists of a first thermoplastic polymer material; - an inner layer of fiber reinforced thermoplastic polymer (14), which includes a rolled fiber reinforcement and which surrounds the fluid-tight inner layer; - a first intermediate layer (13) consisting of a second thermoplastic polymer material; - an outer layer of fiber reinforced thermoplastic polymer (12), which includes a rolled fiber reinforcement, wherein at least one of the inner layer of fiber reinforced thermoplastic polymer (14) and the outer layer of 20 reinforced thermoplastic polymer of fiber (12) includes at least one fiber-containing layer (14a-b, 14c-d; 12a-b, 12c-d) and a reinforcement-free layer (14c, 14f; 12c, 12f). A multi-layer machine installation (1) (30) for producing the pipe and a method of producing said multi-layer pipe (1) are also described.
公开号:BR112014022772B1
申请号:R112014022772-1
申请日:2013-03-14
公开日:2020-10-20
发明作者:Ophaug Arvid
申请人:Purapipe Holding Ltd；
IPC主号:

专利说明:

Field of the Invention
[001] The present invention is related to a multilayer pipe for the transportation of petroleum products, specifically for oil and gas, and also for the transport of CO2 gas, both in an offshore region or in a region on the coast (onshore). The invention is also related to a device and method for making a multilayer pipe. More specifically, the invention is related to a continuous multilayer pipe, made by combining extruded layers and layers wrapped with fibers.
[002] For the transportation of oil and gas, as well as CO2 in offshore and onshore regions, pipes made up of plastic and pipes including metal, usually steel or steel alloy, are used today.
[003] In risers (pipe columns) and in intra-field production transport, the use of non-metallic pipes is known in some cases. These are composite pipes, which are formed from one or more polymers, in the form of flexible tubes, with limited diameters of up to 150 mm. In downstream pipeline transport, that is, from a production field to the coast, and also in pipeline transport that comes from a refinery on the coast (onshore) or some other type of installation on the coast, the amount of oil and gas is markedly large and steel pipe solutions are used exclusively. Due to the large dimensions of the tubes, these transport pipes are not manufactured from other materials. The transport of CO2 gas also requires large dimensions of pipes.
[004] Plastic composite materials are composite materials in which a plastic is combined with other substances or materials that are insoluble in plastic. Plastic composites generally consist of a base mass of a homogeneous plastic, usually called a matrix, in which particles, flakes, fibers, fibrous products, filaments or the like of another material or other type of plastic are included. In these composite materials, the satisfactory qualities of the individual components are combined and usually enhanced. Typical plastic composites include different types of reinforced plastic.
[005] Pipes produced from plastic composite materials can be provided in the form of flexible tubes, in which the fiber is not impregnated by the surrounding matrix, if it is disposed dry between the folds or layers that consist of a plastic matrix. Pipes where the fiber is moistened by a plastic material become more rigid.
[006] Pipes made of flexible plastic are produced with large extensions. In practice, the possibility of transporting the pipe will limit the overall length of the flexible pipe and, in this case, for example, the total diameter of the coil. This also means that a large diameter pipe will be shorter than a small diameter pipe. In the technical segment, flexible pipes of this type are known, with a diameter of up to 150 mm.
[007] Pipes made of rigid plastic have limited extensions. The length is determined by the production tool, and the pipes are typically 12-20 meters long. These pipes are produced with different flange shapes. The pipes are connected to the flanges in a known manner. Flange gaskets prevent leaks in the joints. These pipes are used only in the onshore region. The laying of a pipe in the offshore region places such a high demand on the pipe that the joints with the flanges and seals will develop a great risk of damage to the joints / pipe, which may result in leaks.
[008] It is also known in the technical segment that composite plastic pipes can cause problems during depressurization. This problem is greater due to high operating pressures, typically when transporting hydrocarbon gas or CO gas. The pressure can be of the order of 250 bars, so a hydrocarbon gas or a CO gas; it can penetrate the internal material of the pipe, called the ceiling, and accumulate a gas pressure outside the ceiling. With the depressurization of the gaseous medium inside the ceiling, the pressure outside the ceiling will be greater than the pressure inside the ceiling. This can result in the liner breaking in the piping. This rupture of the ceiling will prevent the pipe from being used anymore.
[009] Corrosion is a problem that occurs in steel pipes and, periodically, large quantities of chemicals are added to petroleum products to prevent internal corrosion in the pipes. Petroleum products may also contain particulate material, which acts as an abrasive on the inner surface of the pipe jacket. When these steel pipes are formed, a metal alloy is selected with respect to the desired corrosion resistance, and the pipe wall thickness is dimensioned based on the expected internal wear.
[010] An external insulating coating can be applied to these metal tubes. First, a thin layer of epoxy is applied to the outer surface of the tube to prevent corrosion, if water enters through the outer insulating layer. The insulating layer is applied to the pipeline using an extrusion technique.
[011] In alternative modalities, the pipes can be internally lined with an insulating layer and, closer to the center, a wear layer. It is known that the innermost layer may consist of a metal tube. The manufacture of these tubes is carried out in such a way that the tubes are made individually in fixed lengths, for example, of 20 meters. The insulating layer is inserted into the tube. In tubes or pipes that are composed of an outer tube and an inner tube, the insulating layer is squeezed into the annular space between the two concentric tubes.
[012] The completed tube extensions are joined by welding. Special work operations must be carried out so that the insulating material overlaps the joining area. The pipes with an external insulating layer are separated from the coating at the ends of the pipe, by means of a polishing robot, before being welded. After welding, each weld is examined. Then, an external insulation is applied to the welding area, through a manual operation. This assembly of individual tubes in larger rows of pipes can be carried out in the onshore region. Rows of tubes, for example, of 800 meters, can then be formed. These are stored side by side, waiting for a pipe laying vessel, which will arrive to load the rows of pipes. The pipe laying vessel will wind the rows of tubes in a large drum, which has a radius greater than the radius of curvature of the rows of tubes. When a row of tubes has been wound, it is joined to the next row of tubes, in the same way that the tubes were joined, and the winding continues until the desired extension has been wound or until the drum is full.
[013] There are several and considerable drawbacks related to this known method. Thus, for example, a large number of welds must be made, requiring quality assurance, and a large storage space is required for the temporary storage of the rows of tubes. The time required to dispose of the pipes when loading them into the pipe laying vessel is considerable and these specific vessels have high daily rates. An additional drawback is that the winding and unrolling procedures of the tube rows subject said tube rows to large mechanical stresses. In some cases, the line of pipes suffers damage, which results in the winding and unwinding procedures being interrupted until the damage is repaired. In some cases, damage is not discovered until a check, such as a pressure test, is done, after laying the pipeline on the seabed has been completed.
[014] Steel pipes that can be wound are made up to a diameter of 406 mm / 16 inches. Pipes with larger diameters are too rigid and have markedly large volumes so that winding is appropriate or possible. The laying of pipes in offshore regions with large diameters, larger than 16 inches, is thus done by preparing the lengths of the pipes for welding, where the pipes are welded, the welds are checked for quality by means of photography / ray radioscopy X, the weld area being protected from corrosion and insulated before the pipeline is lowered into the sea. This occurs on board a specific vessel, which is equipped as a factory for this purpose. In most cases, these vessels are more than 150 meters long and have a crew of 150-200 employees to install the pipeline in an uninterrupted manner.
[015] The term "by extrusion" means that a mass of polymer is squeezed or pushed out of a matrix, in a discontinuous process. The extruded object has the same cross-sectional shape as the spacing or matrix shape. The term "coextrusion" means the extrusion of two or more layers superimposed on each other, at the same time, in a die head. The die head is provided with two or more die spacings. The matrix spacing can be circular and concentric.
[016] The tubes that are used for the transportation of oil, hydrocarbon gas or CO2 have diameter restrictions and length restrictions when they are manufactured, both for tubes for use in the offshore region and for tubes for use in the onshore region.
[017] The term "extrusion by dragging", also called pultrusion, means that the reinforced fibers are dragged through a bath containing a resin, the fibers with the resin applied to them being dragged through a modeling tool and heated , so that the resin becomes polymerized.
[018] In the technical segment, it is known to manufacture tubular bodies by means of extrusion. A polymer material is forced through a matrix. The die may be annular or it may be a mandrel, also called an extrusion core, positioned, for example, centrally in a circular die opening. In addition, it is known that extruded tubes formed from a polymer material can be fluid-tight, but not resistant to high internal or external pressures, especially in a radial direction. It is also known in the art segment that a tube formed of a polymer material can be surrounded by a layer of fiber. The fiber layer can be composed of a composite material, comprising long fibers surrounded by a resin. It is also known in the art segment that tubes can be produced from a single composite material, which was hardened after shaping. It is known that tubes formed from a hardened composite material are resistant to pressure, but that leaks can occur, due to the presence of micro-fissures in the resin that is used. The risk can be reduced by over-dimensioning the wall thickness, but high pressures and / or pressure variations for some considerable time will increase the risk of micro-cracks and, thus, the resulting leaks in the pipeline must be repaired. The multilayer pipes that are composed of an extruded polymer layer and a fiber layer are fluid-tight and resistant to pressure when it is directed radially.
[019] Patent publication WO 91/00466 discloses a multilayer pipe. The tubing is formed from an inner layer of a thermoplastic polymer material, the inner layer being preferably extruded. An outer layer is formed of a thermoplastic or thermosetting polymer material, the outer layer being preferably extruded by pultrusion. The outer surface of the inner layer is in contact with the inner surface of the outer layer.
[020] Patent publication GB 1,211,860 discloses the manufacture of a multilayer pipe by means of co-extrusion. The layered piping is composed of an inner layer, an outer layer and a foamed intermediate layer. The inner layer, the outer layer and the foamed layer can be composed of the same thermoplastic material or can be composed of two or more different thermoplastic materials. The foamed layer is made by adding a suitable blowing agent that releases gas. The foamed layer constitutes an insulating layer between the inner and outer layers. Reinforcing filler elements can be added specifically to the outer layer, for example, in the form of glass fibers or asbestos fibers. Patent publication EP 1419871 discloses the manufacture of a multilayer pipe, too, by means of co-extrusion. A foamed intermediate layer forms an insulating layer between the inner layer and the outer layer.
[021] Patent publication JP 9011355 discloses the manufacture of a multilayer pipe, in which an inner layer is formed from an extruded thermoplastic material. The inner layer is surrounded by a fiber layer in the longitudinal direction of the tube, and a second fiber layer is wound in a substantially peripheral direction over the first fiber layer. The inner layer is made, initially, through the extrusion of a rod-shaped mass core, formed of a thermoplastic material, in order to then apply the inner layer around the rod-shaped core, through a so-called matrix of crosshead. The inner layer, the first fiber layer and the second fiber layer are melted by heating. Heating can also cause the inner layer to detach from the core, so the core is pulled from the formed tubing.
[022] Patent publication GB 1,345,822 discloses a multilayer pipe, in which an inner layer is formed from an extruded thermoplastic material. The inner layer is surrounded by a first layer of fiber, which is wound in a substantially peripheral direction over the inner layer, by a second layer of fiber, which extends along the first layer of fiber in the longitudinal direction of the pipe, and by a third fiber layer, which is wound in a substantially peripheral direction over the second fiber layer, preferably perpendicularly to the first fiber layer.
[023] US Patent Publication 4,515,737 discloses the production of a multilayer pipe, in which an inner layer is formed from an extruded thermoplastic material. The inner layer is surrounded by an intermediate layer, which is composed of a first layer of fiber, in the longitudinal direction of the pipe, and a second layer of fiber, which is wound in a substantially peripheral direction on the first layer of fiber. An outer layer, which consists of an extruded thermoplastic material, is applied over the intermediate layer by means of a crosshead matrix.
[024] Patent publication WO 2011/128545 discloses a transport pipeline for transporting hydrocarbons in cold environments. The transport piping includes an inner tube, which has an electrically insulating outer surface, a heating layer disposed externally to the inner tube, the heating layer including carbon fibers impregnated in a polymer material, and the insulating layer disposed externally on the heating layer, and an external tube capable of withstanding an external pressure of more than 100 bars. The transport piping also includes spacers between the inner tube and the outer tube. The outer tube can be composed of carbon fibers impregnated in a polymer material. The inner tube can be formed from a polymer material, such as, for example, polyamide (PA) or polyvinylidene difluoride (PVDF). The inner tube can also be formed of a steel tube, where the outer side of the tube is coated with PA or PVDF, as an electrically insulating layer. An electrical voltage is applied over the carbon fibers in the heating layer, which will conduct current. In this way, the heating layer supplies the heat transport piping. The insulating layer can be formed of foamed polyurethane (PU). In an alternative embodiment, the outer tube can be formed of steel. The patent publication discloses the production of a pipe with a diameter of approximately 15 cm.
[025] Patent publication WO 03/098093 discloses a tube-in-tube manufacturing method, with a suitable insulating medium in the annular space between tubes, so that the tube-in-tube manufacturing method is suitable for winding in a drum of a pipe laying vessel. The inner tube and the outer tube are rigid tubes. The insulating medium includes two types of materials, one of which is formed of a material with satisfactory insulation properties, but of relatively low mechanical strength, while the other material is formed from a material with poor insulating properties, but with greater mechanical resistance. US Patent publication 2010/0260551 discloses an alternative to the tube-to-tube method of fabrication, which can be rolled up.
[026] US Patent publication 5,755,266 discloses a laminated tube for use in oil activity in the offshore region, for injection of chemicals into wells and for transporting hydraulic fluid to control valves. The inner tube consists of an extruded thermoplastic tube. After degreasing, rubbing and washing, the tube is coated, layer upon layer, with fibers and fiber mats impregnated with a thermosetting plastic. Finally, the tube is cured in an oven and after cooling the tube is rolled up.
[027] Patent documents US 2004/0194838, US 2010/062202 and US 6,516,833 disclose flexible tubes with wire reinforcement on the tube wall. Near the center, the tube can also be provided with a reinforcement structure, called in the segment of the carcass technique.
[028] The aim of the invention is to eliminate or at least reduce one of the drawbacks mentioned in the prior art or, at least, to provide a useful alternative to the prior art.
[029] The objective is achieved through the characteristics specified in the description below and in the attached claims.
[030] The invention relates to the manufacture of an uninterrupted multilayer pipe, suitable for the transportation of oil and gas in the offshore and onshore regions. The invention also relates to an uninterrupted or continuous multilayer pipe, which has a smaller radius of curvature than the rows of pipes made of metal. The invention also relates to a device for making said uninterrupted multilayer piping, which is suitable for transporting oil and gas.
[031] In a first aspect, the invention relates to a multilayer pipe, including, at least: a fluid-tight inner layer, which consists of a first thermoplastic polymer material; - an inner layer of fiber-reinforced thermoplastic polymer, which includes a wound fiber reinforcement and which surrounds the fluid-tight inner layer; - a first intermediate layer that is formed from a second thermoplastic polymer material; - an outer layer of fiber reinforced thermoplastic polymer, which includes a rolled fiber reinforcement, wherein at least one of the inner layer of fiber reinforced thermoplastic polymer and the outer layer of fiber reinforced thermoplastic polymer includes at least one layer containing fiber and a reinforcement-free layer.
[032] The first intermediate layer can be formed from an expanded thermoplastic polymer material. The first intermediate layer can be provided with at least one axially oriented channel. The multilayer piping may further include a second intermediate layer, formed from a third thermoplastic polymer material. The second intermediate layer can be provided with at least one axially oriented channel. The cross section of the channel can be substantially circular, or it can be substantially oblong or, still, substantially trapezoidal.
[033] The second intermediate layer can be provided with at least one axially oriented heating element.
[034] Wrapped fiber reinforcement can include at least one fiber tape.
[035] The multilayer piping may include at least one fiber optic cable that extends in the longitudinal direction of the multilayer piping, and said at least one fiber optic cable is positioned in at least one of the layers.
[036] In a second aspect, the invention relates to a machine installation for the manufacture of an uninterrupted multilayer pipe, which includes a fluid-tight inner layer consisting of a first thermoplastic polymer material, the machine installation comprising: - a first winding machine station, wherein the first winding machine station includes at least: a roller turntable arranged to wrap the fiber tape around the fluid-tight inner layer to form a reinforced layer of fiber, in an inner layer of fiber reinforced polymer; and an extruder arranged to form a reinforcement-free layer, from a thermoplastic polymer material surrounding the layer; an extruder arranged to form a first intermediate layer, which comprises a thermoplastic polymer material and which surrounds the fiber-reinforced inner layer; - a second winding machine station, wherein the second winding machine station includes at least: a roller turntable, arranged to wrap the fiber tape around the other layers of the multilayer tubing, to form a reinforced fiber layer in an outer layer of fiber reinforced polymer; and - an extruder arranged to form a reinforcement-free layer, from a thermoplastic polymer material, surrounding the layer.
[037] The extruder that forms the first intermediate layer can be composed of an extruder provided with an extrusion head, in which, in an annular space formed between the calibration element of the extrusion head and the multilayer piping accommodated in the head of extrusion, at least one mandrel is positioned, to form an axially oriented channel in the first intermediate layer.
[038] The machine installation may further comprise an extruder arranged to form a second intermediate layer, which is formed from a third thermoplastic polymer material, the order of position of the second intermediate layer being optionally: between the second inner layer of fiber and the first intermediate layer, or between the first intermediate layer and the outer layer of fiber reinforced polymer. The extruder can be provided with an extrusion head, in which, in an annular space formed between the calibration element of the extrusion head and the multilayer piping accommodated in the extrusion head, at least one mandrel is positioned, for forming an axially oriented channel in the second intermediate layer.
[039] The machine installation can also include an extruder, arranged to form the fluid-tight inner layer, which is formed from a first thermoplastic polymer material.
[040] The machine installation can also include at least one coil or roll, arranged to accommodate a fiber optic cable. Said at least one roll may be arranged to feed an optical fiber cable into the extruder which forms a fiber-free layer in the fiber-reinforced outer layer. Said at least one roll can be arranged to feed a fiber optic cable into the extruder that forms the fluid-tight inner layer.
[041] In a third aspect, the invention relates to a method of forming an uninterrupted multilayer pipe, the method including the steps of: (a) providing a fluid-tight inner layer consisting of a thermoplastic polymer; (b) forming a fiber-reinforced inner layer around the fluid-tight inner layer by wrapping a fiber tape around the fluid-tight inner layer in order to form at least one fiber layer and, by extrusion, apply a reinforcement-free layer over the fiber layer; (c) forming, by means of extrusion, a first intermediate polymer layer around the fiber-reinforced inner layer; and (d) forming a reinforced outer layer of fiber, by wrapping a fiber tape around the other layers, in order to form at least one layer of fiber and, by means of extrusion, apply a layer without reinforcement on the fiber layer.
[042] The method of step (c) may further include providing the extruder head of an extruder in an annular space formed between the calibration element of the extrusion head and the multilayer tubing accommodated in the extrusion head, with at least a mandrel that forms an axially oriented channel in the first intermediate polymer layer.
[043] The method can also include the step of: cl) forming, by extrusion, a second intermediate layer formed from a third polymer material, being optionally positioned in the following order: between the inner layer of fiber formed in the step ( b) and the first intermediate polymer layer formed in step (c), or between the first intermediate polymer layer formed in step (c) and the fiber-reinforced outer layer formed in step (d). The method in step (cl) further includes the provision of the extrusion head of an extruder in an annular space, which is formed between the calibration element of the extrusion head and the multilayer piping, which is accommodated in the extrusion head with at least one mandrel, forming an axially oriented channel in the second intermediate polymer layer.
[044] The method in step (a) may include the formation, through extrusion, of the fluid-tight inner layer, which is formed of a thermoplastic polymer.
[045] The method may include the use of a machine installation as described above, and also include the positioning of the machine installation on a deck on board a ship.
[046] The following are examples of preferred modalities, which are shown in the accompanying drawings, in which: - Figures 1A-1C show, respectively, in (A), a schematic cross section on a first scale; in (B), a schematic side view on a smaller scale, and (C), an isometric perspective view on an even smaller scale of a multilayer pipe in a first embodiment, where pipe includes, from the inside out, a homogeneous inner wear layer made of a first extruded thermoplastic polymer material, a composite inner layer of fiber reinforced thermoplastic polymer, a first homogeneous intermediate layer disposed in a second layer of extruded thermoplastic polymer material, and an outer layer , composite, of fiber reinforced thermoplastic polymer, and where, in (B) and (C), some of the layers have been removed to make the underlying layers visible; figures 2A-2C show, respectively, in (A), a schematic cross section in a first scale; in (B), a schematic side view on a smaller scale, and in (C), an isometric perspective view on an even smaller scale of a multilayer pipe in a second embodiment, in which, in addition to that shown in figure 1, the piping is provided with a second homogeneous intermediate layer, consisting of an extruded thermoplastic polymer material, the second intermediate layer being disposed between the inner layer of fiber reinforced thermoplastic polymer and the first intermediate thermoplastic layer, and the second intermediate layer being provided a plurality of axial channels; - figures 3A-3B show schematic cross sections of a multilayer pipe in a third embodiment, in which the pipe is provided with the same layers shown in figure 2A, but in which the second intermediate layer is provided with axially oriented electric heating cables (3A) or a combination of channels and heating cables (3B); figure 4 shows an isometric perspective view of a multilayer pipe in a fourth embodiment, and an enlarged section, in which the pipe is provided with the same layers shown in figure 2, and in which the second intermediate layer is provided with a plurality of axial channels of another shape, and in which the layered structure of the outer layer of fiber reinforced polymer and the inner layer of fiber reinforced polymer is visualized; figure 5 shows an isometric perspective view of a multilayer pipe in a fifth embodiment, and an enlarged section, in which the pipe is provided with layers as shown in figure 1, and the first intermediate layer is provided with a plurality of axial channels that can be fluid carriers; figure 6 shows an isometric perspective view of a portion of a first embodiment of a machine installation, which is arranged to produce a multilayer pipe in accordance with the invention, the installation being provided with a plurality of extruders and platforms roller swivel; figure 7 shows a partial section, on a different scale, of the machine installation shown in figure 6; figure 8 shows a side view, on a smaller scale, of the entire machine installation shown in part of figures 6 and 7; figures 9A-9B show side views, on a smaller scale, of the entire machine installation in two alternative modes; - figure 10 shows a partial section, on a larger scale, of details of the machine installation on a first extruder and on a roller turntable; figure 11 shows a partial section, on a different scale, of details of the intermediate portion of the machine installation shown in figures 6 and 7; figure 12 shows a partial section, on a larger scale, of details of an extruder arranged to form axial channels in the extruded layer; figure 13 shows, on a different scale, an alternative embodiment of the multilayer piping; figure 14 shows, schematically, on a different scale, a fiber tape which is used to form a layer of fiber reinforced polymer; figures 15A-15B show machine installations, as shown in figures 8 and 9A, but, in other embodiments, where fiber optic cables are embedded in two layers of the multilayer piping; figure 16 shows the same as figure 1A, but in another embodiment, in which fiber optic cables have been embedded in two layers of the multilayer piping; and - figures 17A-17B show the same as figures IB and 2B, but, in other embodiments, in which three fiber optic cables have been embedded in each of two layers of the multilayer piping.
[047] The drawings shown are schematic and show features that are important for understanding the invention. The relative proportions may differ from the proportions shown.
[048] In the drawings, the numerical reference (1) indicates a multilayer pipe, also called composite pipe (1), according to the invention. In a first embodiment, as shown in figures 1A-1C, the multi-layer piping (1) is composed of: an internal fluid-tight wear layer (11), also called a liner; an inner layer of fiber reinforced polymer (14) surrounding the inner wear layer (11); a first intermediate layer (13); and an outer layer of fiber reinforced polymer (12). The inner wear layer (11) and the first intermediate layer (13) can be formed from an extruded thermoplastic polymer material, which can be the same material in both layers, such as thermoplastic polyurethane, or different materials of polymer. The first intermediate layer (13) can consist of a foamed or expanded thermoplastic polymer material, which will then form an insulating layer (13). The insulating layer (13) can include so-called insulation for industrial use. Expanded or foamed polypropylene, polyethylene and thermoplastic polyurethane are examples of insulation for industrial use. Alternatively, the insulating layer (13) can be formed from the so-called insulation for industrial use. Expanded or foamed polystyrene is an example of insulation for industrial use.
[049] In a second embodiment, as shown in figures 2A-2C, the multilayer piping (1) is composed of an inner wear layer (11), an outer layer of fiber reinforced thermoplastic polymer (12), an first intermediate layer (13), an inner layer of fiber reinforced thermoplastic polymer (14) surrounding the inner wear layer (11) and a second intermediate layer of thermoplastic polymer (15). The second intermediate layer of thermoplastic polymer (15) is provided with at least one element (2), which extends axially in the second intermediate layer of polymer (15). The second intermediate layer of thermoplastic polymer (15) surrounds the inner layer of fiber reinforced thermoplastic polymer (14), and the first intermediate layer (13) is positioned between the outer layer of fiber reinforced polymer (12) and the second layer polymer intermediate (15). In this embodiment, the element (2) includes closed channels (20). The closed channels (20) can accommodate a circulating heat emitting fluid.
[050] A third embodiment of the multilayer piping (1) is shown in figure 3A. In this embodiment, the multilayer pipe (1) is provided with the same layers as the pipe shown in figure 2, but the element (2) includes electrical heating conductors (22). A variant of this modality includes a combination of closed channels (20) and heating conductors (22), as shown in figure 3B.
[051] A fourth modality is shown in figure 4. In this modality, the closed channels (20) are formed from an elongated cross section.
[052] A fifth embodiment is shown in figure 5. In this embodiment, the multilayer piping (1) includes the same layers as shown in figure 1, but the first intermediate layer (13) is provided with at least one closed channel ( 20). The closed channels (20) are shown to be formed with a substantially trapezoidal cross section.
[053] A sixth modality is shown in figure 13. In this modality, the second intermediate layer (15) involves the first intermediate layer (13). The channels (20) were formed in the second intermediate layer (15). The layer (13) includes an insulating polymeric material.
[054] The multilayer pipe (1), according to the invention, can be produced by a combination of extrusion and winding procedures. This results in a compact machine installation (30), as shown in figures 6-12 and 15.
[055] In figures 6-8, a first embodiment of a machine installation (30) is shown, which is arranged to produce a multilayer pipe (1), with an internal wear layer (11), a layer inner layer of fiber reinforced polymer (14) involving the inner wear layer (11), a first intermediate layer (13) and an outer layer of fiber reinforced polymer (12). Only the construction characteristics that are necessary for the understanding of the invention are indicated and described. The machine installation (30) includes a first extruder (310), shown schematically in the figures. An extrusion head (311) includes an annular die spacing (312) (see figure 10), to which a mass of molten thermoplastic polymer is first fed, from an extruder barrel, of a type known per se ( not shown). The first polymer mass circulates out of the matrix spacing (312), within an annular space (314), formed between an internal mandrel (316) and an external calibration element (318). The internal mandrel (316) and / or the external calibration element (318) can be provided with internal cooling channels (not shown), which are arranged to accommodate a circulating cooling medium. The cooling medium will cause the internal mandrel (316) and / or the calibration element (318), through the external surface and internal surface of the same, which are in contact with the first polymer mass, to cool the mass of polymer, so that it is dimensionally stable when it is forced out of the extrusion head (311). The first mass of polymer forms the tubular wear layer (11).
[056] The inner tubular wear layer (11) is passed through the center of a first winding machine station (350). The winding machine station (350) is one or a plurality of roller turntables (352a-352d) and one or more cross-type extruders (320, 320 '). The roller turntables (352a-352b) are provided with a plurality of rollers or reels (354). These turntables (352a-352b) and rollers (354) are elements known in the art segment and will not be discussed further here. The rollers are provided with a fiber tape (4) (see figure 14). The fiber tape (4) includes a plurality of fiber filaments (41), arranged side by side. The filaments (41) can be formed of glass fibers. The filaments (41) are impregnated with a thermoplastic polymer (43), for example, a thermoplastic polyurethane, as shown schematically in figure 14. The glass fiber (4) can be 30 mm wide and 5 mm thick, however , other dimensions are also possible, and the dimensions of the fiber tape are matched with the dimensions of the multilayer pipe (1). Thus, for example, a 20 mm wide and 3 mm thick fiber strip (4) may be suitable for the manufacture of a multilayer pipe (1) with a diameter of 15.2 cm / 6 inches, and a fiber tape (4) 50 mm wide and 6 mm thick can be suitable for making a multilayer pipe (1) with a diameter of 127 cm / 50 inches. The roller turntable (352a) will wrap a plurality of fiber strips (4) around the wear layer (11) at an angle in the longitudinal direction of the wear layer (11), so that a reinforced polymer layer fiber (14a) is formed. The fiber strips (4) are wound in an edge-to-edge system. The roller turntable (352a) is provided with a heating unit (356a), downstream of the roller turntable (352a). The heating unit (356a) can be provided with a heating source, such as an infrared (IR) heating source (not shown), which fuses the thermoplastic material of the fiber tapes (4), providing agglutination of them in the layer (14a). Each roller turntable (352a-352b), for example, the roller turntable (352a), will wrap the fiber strip (4) at an angle different from the angle of the fiber tapes (4) of the other roller turntable. rolls (352b), as is known in the art segment. One or more of the roller turntables (352a-352b) can also be fixed, which means that the fiber tape (4) will be arranged over the wear layer (11), in the longitudinal direction of the wear layer (11 ). The roller turntable (352b) is provided with a heating unit (356b), corresponding to that of the roller turntable (352a).
[057] After the wear layer (11) receives the application of a layer of fiber reinforced polymer (14a, 14b) from the roller platforms (352a-352b), it is fed into an extrusion head (321 ) of a second extruder (320). The extrusion head (321) includes a die spacing (322), which is fed with a mass of molten thermoplastic polymer, of the same type as that which the fiber tape (4) is impregnated, from an extruder barrel of a also known type (not shown), as shown in figure 11. The extrusion head (321) is of the so-called crosshead type (crosshead matrix; right angle head). The matrix spacing (322) surrounds the fiber layer (14b) radially. The polymer mass leaves the matrix spacing (322) and settles in an inclusive manner, externally on the fiber layer (14b), in an annular space (324) formed between the fiber layer (14b) and an element of external calibration (328). The external calibration element (328) can be provided with internal cooling channels (not shown), which are arranged to accommodate a circulating cooling medium. The cooling medium will suffer the effect of the calibration element (318) through its internal surface that is in contact with the polymer mass, cooling the polymer mass, so that it is dimensionally stable when processed by the extrusion head ( 321). The polymer mass forms a reinforcement-free layer (14c) in the fiber reinforced layer (14). The application of the reinforcement-free layer (14c) has an advantage, firstly, of melting the polymer with which the fibers of the layers (14a, 14b) are impregnated, promoting the fusion of these fibers and layers (14a, 14b) and, second, that the air in the layers (14a, 14b) is expelled.
[058] After applying the layer (14c), the piping is fed forward, through the center, to a plurality of roller turntables (352c-352d). The roller turntables (352c-352d) work in the same way as the roller turntables (352a) and form, respectively, the layers (14d) and (14e) of fiber tape (4), in the same way as the described for layers (14a) and (14b). After applying the layers (14d) and (14e), a fiber-free layer (14f) is applied in the same way as the layer (14c) to a third crosshead extruder (320 '), in the same way as shown in figure 11. The advantage of applying layer (14f) is the same as that of layer (14c).
[059] The internal mandrel (316) can extend inside the tubing (1) of the first extruder (310), through the roller turntables (352a-352b), the second extruder (320), the roller turntables ( 352c- 352d) and the third extruder (320 '), as shown in figure 7.
[060] The unfinished multilayer tubing (1) is fed forward into an extrusion head (331) of a fourth extruder (330), as shown in figure 11. The extrusion head (331) includes a matrix spacing (332), which is supplied with a second type of molten thermoplastic polymer mass, from an extruder barrel of a type known per se (not shown) to an annular space (334) between an element external calibration (338) and layer (14), as shown in figure 11. The extrusion head (331) is of the crosshead type. The second polymer mass may be a foamed or expanded thermoplastic polymer mass, or a foaming agent may have been added to the second polymer mass, causing the second polymer mass to foam in the annular space (334), as is known in the technical segment. The external calibration element (338) can be provided with internal cooling channels (not shown), which are arranged to accommodate a circulating cooling medium. The cooling medium will cause the calibration element (338), through the internal surface that is in contact with the second polymer mass, to cool the second polymer mass, so that it is dimensionally stable when forced to outside the extrusion head (331). The second polymer mass forms the first intermediate tubular layer (13).
[061] The unfinished multilayer piping (1) is fed forward, through a second winding machine station (360). The winding machine station (360) is substantially similar to the winding machine station (350), and has the same construction and operation characteristics. The winding machine station (350) can include one or a plurality of roller turntables (362a-362d) and one or more cross-type extruders (340, 340 '). The roller turntables (362a-362b) are provided with a plurality of rollers (364). Like the rollers (354), the rollers (364) are provided with a fiber tape (4). After the first intermediate layer (13) receives the application of a layer (12a) of fiber tape (4) from the roller turntable (362a), it is passed through a heating unit (366a), downstream the roller turntable (362a). Then, a layer (12b) is applied from the roller turntable (362b), then a fiber-free layer (12c) from the fifth extruder (340), the layers (12d) and (12e) from the platforms rollers (362c) and (362d), respectively, and finally a fiber-free layer (12f) from the sixth extruder (340 '), as shown in figure 8. The advantage of applying the reinforcement-free layers (12c) and (12f) is the same advantage as that previously described for layers (14c) and (14f).
[062] The machine installation (30) is shown to be arranged on a base (9). The base (9) may consist of a deck (9) arranged on a ship (not shown).
[063] In figures 9A-9B, a second embodiment of a machine installation (30 ') is shown, arranged to produce a multilayer pipe (1) comprising an inner fluid-tight wear layer (11), a layer inner layer of fiber reinforced polymer (14), a second intermediate layer (15), a first intermediate layer (13) and an outer layer of fiber reinforced polymer (12). Only the construction characteristics that are necessary for the understanding of the invention are indicated and described. Elements of the machine installation (30 ') which are found in the machine installation (30) and which have the same function have received the same numerical references and are mentioned only for the understanding of the second machine installation (30'). The machine installation (30 ') includes a first extruder (310), provided with a first extrusion head (311), a first winding machine station (370) with two extruders (320), (320'), a fourth extruder (330) and a second winding machine station (360) with two extruders (340) and (340 '). The machine installation (30 ') also includes a seventh extruder (370), provided with an extrusion head (371), as shown in figure 12. The inner layer of fiber reinforced polymer (14) is placed inside the head of extrusion (371). The extrusion head (371) includes a die spacing (372) which is fed with a third mass of thermoplastic polymer from an extruder barrel, of a type known per se (not shown). The extrusion head (371) is of the so-called crosshead type. The matrix spacing (372) surrounds the inner layer of fiber-reinforced polymer (14) radially. The third polymer mass circulates out of the matrix spacing (372) and settles in an enclosed manner, externally on the inner layer of fiber reinforced polymer (14), in an annular space (374) formed between the layer (14 ) and an external calibration element (378). The external calibration element (378) can be provided with internal cooling channels (not shown), which are arranged to accommodate a circulating cooling medium. The cooling medium will cause the calibration element (378), through the internal surface that is in contact with the third polymer mass, to cool the third polymer mass, so that it is dimensionally stable when forced to outside the extrusion head (371). The third mass of polymer forms the tubular jacket (15).
[064] In the annular space (374), the extrusion head (371) can be provided with a plurality of round mandrels (punch pins) (379), with first and second end portions, and a longitudinal axis that is oriented parallel to the longitudinal axis of the annular space (374). The chucks (379) can be provided with internal cooling channels (not shown). The mandrels (379) are positioned with their first end portions close to the matrix spacing (372), so that the third mass of polymer will pass through the mandrels in the molten state, and so that the cooling effect of the calibration element ( 378) and the mandrels (379) results in a third mass of dimensionally stable polymer in the second end portions of the mandrels (379). In this way, closed channels (20) are formed in the second intermediate layer (15), as shown in figure 2.
[065] In an alternative embodiment, electric heating conductors (22) are inserted into the annular space (374), from the terminal portion upstream of the extrusion head (371), so that the heating conductors (22) are axially oriented in the second intermediate layer (15). The heating conductors (22) will be surrounded by the third polymer mass, as shown in figure 3.
[066] In an additional alternative modality, the cross sections of the mandrels are oblong in the peripheral direction of the annular space (374), and channels (20) are formed in the second intermediate layer (15) with oblong cross sections, as shown in figure 4.
[067] In another alternative embodiment, the dimensions of the annular space (374) are increased, so that there is sufficient distance between the outer surface of the inner layer of fiber reinforced polymer (14) and the inner surface of the calibration element (378 ), to enable the positioning of mandrels (379) having trapezoidal cross sections. Channels (20) having trapezoidal cross sections will then be formed in the second intermediate layer (15) (not shown). As an alternative to this modality, it may be appropriate to form the channels (20) in the first intermediate layer (13) and without the second intermediate layer (15), as shown in figure 5. This can be done by changing the machine installation (30) , as shown in figure 8, replacing the extruder (330) with the extruder (370) and feeding the extruder (370) with a third thermoplastic polymer, instead of a second foamed polymer. The machine installation (30 '), as shown in figure 9A, can also be used by removing the second extrusion head (330) or not using said extrusion head (330).
[068] Another alternative machine layout (30 ") is shown in figure 9B. In this machine layout (30"), the order of the extruders (330) and (370) is modified. This causes the second intermediate layer (15) to wrap around the first intermediate layer (13), as shown in figure (13).
[069] The wear layer (11) can be produced independently of the other layers. Therefore, it is within the scope of the present invention that the wear layer (11) is produced in the form of a tube, in a manner known per se, and that the wear layer (11) is provided, for example, as a coiled tube. The wear layer (11) can be carried into the first winding machine station (350), as described above.
[070] Figures 16 and 17 show the multilayer piping (1) in alternative modes. Figure 15 shows alternative arrangements of the machine for forming the multilayer pipe (1), in these modalities. A fiber optic cable (6), of a type known per se, is included in at least one layer (11, 12, 13, 14, 15) of the multilayer pipe (1). It is known in the art segment that such a fiber optic cable (6) together with a suitable laser light source (not shown) and a suitable receiver (not shown) can be used to determine when the fiber optic cable (6) is broken and the distance to the break. It is also known from the art segment that such a fiber optic cable (6) together with a suitable laser light source and a suitable receiver, can be used to determine the temperature along said fiber optic cable (6). It is also known from the art segment that such a fiber optic cable (6) together with a suitable laser light source and a suitable receiver, can be used to determine the pressure conditions along said fiber optic cable (6). Other measurements are also conceivable. In figure 16, an optical fiber cable (6) is shown in the wear layer (11) and an optical fiber cable (6) in the layer (12c) of the outer layer of fiber reinforced polymer (12). In figure 17, three optical fiber cables (6) are shown in the wear layer (11) and three optical fiber cables (6) in the layer (12c) of the outer layer of fiber reinforced polymer (12). In other embodiments, there may be one or more fiber optic cables (6) only in the wear layer (11). In still other embodiments, there may be one or more optical fiber cables (6) only in the outer fiber-reinforced layer (12). One or more fiber optic cables can also be included in at least one of the first intermediate layer (13), second intermediate layer (15), and one or both layers (14c) and (14f) of the inner layer of reinforced polymer fiber (14). The multilayer piping (1) can be provided with fiber optic cables (6), in combinations of the modalities mentioned above.
[071] A machine layout (30 "') is shown in figure 15A, for manufacturing the multilayer piping (1) shown in figures 16 and 17A. The machine layout (30"') is provided with rollers (5 ) that accommodate the fiber optic cable (6). The rollers (5) are arranged to feed the optical fiber cable (6) into the extruder (310), forming the inner wear layer (11), and to feed the optical fiber cable (6) into the extruder (340) ) to form the layer (12c) of the fiber-reinforced outer layer (12). An alternative machine arrangement (30 "") is shown in figure 15B, for manufacturing the multilayer piping (1) shown in figure 17B. The machine layout (30 "") is provided with rollers (5) that accommodate the fiber optic cable (6). The rollers (5) are arranged to feed the optical fiber cable (6) into the extruder (310), forming the inner wear layer (11), and to feed the optical fiber cable (6) into the extruder (340) ) to form the layer (12c) of the fiber-reinforced outer layer (12).
[072] A multilayer pipe (1) is described with a diameter of 406 mm (16 inches) and upwardly shows considerable fluctuation in the water, but the pipe (1) itself has a specific weight of approximately 1, 2 kg / dm3. This piping is laid, with a water filling procedure during laying. The multilayer piping (1) is emptied of water in a known manner when the laying is completed. It can be advantageous for the channels (20) to be filled with a heavy mass after the multilayer pipe (1) has been produced and while the multilayer pipe (1) is being laid. This can be advantageously achieved by drilling openings (not shown), from the outside and through the layer (12), possibly through the layer (13), into the channels (20) of the layer (15). The openings are formed with uniform spacing in the longitudinal direction of the multilayer pipe (1). A fluid concrete material is placed inside the channels (20), and the concrete then hardens inside said channels (20).
[073] A machine arrangement (30) as shown so far, is suitable for positioning on a deck (9) on board a ship (not shown). Thus, for example, the machine arrangement (30) can be arranged to produce a multilayer pipe (1) at a speed of 2 m / min. In an uninterrupted operation, without interrupting production, this machine layout can produce 2880 meters of multilayer piping (1) per day. Therefore, the machine layout (30) is quite suitable for producing transport pipes for offshore settlement. In this way, the invention solves many of the problems related to the laying of such transport pipes. In addition, the multilayer piping (1) can be provided with a continuous fiber optic cable (6) for monitoring the transport piping. This use of the fiber optic cable (6) is not possible by applying knowledge of the state of the art, where the lengths of steel pipes are connected by welding. The invention is not limited to use on board ships. The machine installation (30) is compact and also suitable for use on land, where the machine installation (30) can be positioned on a mobile platform (not shown). Example 1
[074] A multilayer pipe (1), as shown in figures 1A-1C, is produced with an outside diameter of 40.6 cm (16 inches). The wear layer (11) is formed of thermoplastic polyurethane and forms an 8 mm thick layer. The first intermediate layer (13) is formed of foamed thermoplastic polyurethane, constituting an insulating layer 50 mm thick. The outer layer of fiber reinforced polymer (12) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane, and an outer layer (12f), which is formed of thermoplastic polyurethane and which forms a 15 mm thick layer . The inner layer of fiber-reinforced polymer (14) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane and forms a 15 mm thick layer. Example 2
[075] A multilayer pipe (1), as shown in figures 2A-2C, is produced with an outside diameter of 40.6 cm (16 inches). The wear layer (11) is formed of thermoplastic polyurethane and forms an 8 mm thick layer. The first intermediate layer (13) is formed of foamed polystyrene and constitutes an insulating layer 50 mm thick. The outer layer of fiber reinforced polymer (12) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane, and an outer layer (12f), which is formed of thermoplastic polyurethane and which forms a 15 mm thick layer . The inner layer of fiber-reinforced polymer (14) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane and forms a 15 mm thick layer. A second intermediate layer (15) is formed from thermoplastic polyurethane. In the second intermediate layer (15), twenty closed channels (20) were formed, extending axially. The channels (20) are positioned side by side, evenly spaced on the perimeter of the second intermediate layer (15). A heat emitting fluid can circulate through the channels (20). In this example, the second intermediate layer (15) forms a heating jacket inside the multilayer pipe (1). The heat emitting fluid can circulate in a first direction in some of the channels (20) and, in a second direction, opposite to the first direction, also in some of the channels (20). Example 3
[076] A multi-layer pipe (1), as shown in figure 3A, is produced with an outside diameter of 40.6 cm (16 inches). The multilayer piping (1) is made in substantially the same way as the multilayer piping (1) described in Example 2. As an alternative to the closed channels (20), the second intermediate layer (15) is provided with electrical resistance (22), of a type known per se, also called heating cables (22). In this example, the second intermediate layer (15) forms a heating jacket inside the multilayer pipe (1). The heating cables (22) can include an external insulating layer. In an alternative embodiment, the second intermediate layer (15) can be provided with both heating cables (22) and channels (20), as shown in figure 3B. Example 4
[077] A multilayer pipe (1), as shown in figure 4, is produced with an outside diameter of 40.6 cm (16 inches). The wear layer (11) is formed of thermoplastic polyurethane and forms an 8 mm thick layer. The first intermediate layer (13) is formed of foamed thermoplastic polyurethane and constitutes an insulating layer 32 mm thick. The outer layer of fiber reinforced polymer (12) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane, and an outer layer (12f), which is formed of thermoplastic polyurethane and which forms a 15 mm thick layer . In figure 5 it is shown that the outer layer of fiber reinforced polymer (12) was formed by applying the layers (12a-12d), coming from the winding machine station (360 ', 360 "). The inner layer of reinforced polymer fiber (14) is formed of a glass fiber that has been impregnated with epoxy resin and forms a 15 mm thick layer. In figure 4 it is shown that the fiber reinforced polymer layer (14) was formed by applying the layers (14a-14b) and (14c-14d) from the winding machine station (350) A second intermediate layer (15) is formed of thermoplastic polyurethane In the second intermediate layer (15), ten closed channels (20) extending axially were formed to transport a heat emitting fluid. Each channel (20) has a cross-sectional area of 20 cm2. The channels (20) are positioned side by side and evenly spaced on the perimeter of the second intermediate layer ( 15). Example 5
[078] In an alternative embodiment, a multilayer pipe (1) is shown in figure 5. The multilayer pipe (1) is arranged to carry a first fluid in the channel (10) of the pipe (1) and a second fluid in the peripheral channels (20) of the tubing (1). The first fluid can be oil and the second fluid can be gas. Multilayer piping (1) can be produced with an outside diameter of 40.6 cm (16 inches) or greater. The wear layer (11) is formed of polyurethane and forms an 8 mm thick layer. The outer layer of fiber reinforced polymer (12) is formed of fiberglass, which has been impregnated with thermoplastic polyurethane, and an outer layer (12f), which is formed of thermoplastic polyurethane and which forms a 15 mm thick layer . In figure 5 it is illustrated that the outer layer of fiber reinforced polymer (12) was formed by applying the layers (12a-12d), (12c-12d), coming from the winding machine station (360). The inner layer of fiber-reinforced polymer (14) is formed of a glass fiber that has been impregnated with thermoplastic polyurethane and forms a 15 mm thick layer. In figure 5 it is illustrated that the inner layer of fiber reinforced polymer (14) was formed by applying the layers (14a-14b), (14c-14d) from the winding machine station (350). A first intermediate layer (13) is formed of thermoplastic polyurethane. In the first intermediate layer (13), ten closed channels (20) extending axially were formed for the transport of a fluid. Each channel (20) has a cross-sectional area of 20 cm2. The channels (20) are positioned side by side, being evenly spaced on the perimeter of the first intermediate layer (13). Example 6
[079] In an alternative embodiment, a multilayer pipe (1) is shown in figure 12. The multilayer pipe (1) can be produced with an outside diameter of 40.6 cm (16 inches) or greater than that. The first intermediate layer (13) is formed of foamed polystyrene and constitutes an insulating layer. The second intermediate layer (15) surrounds the layer (13) and is formed of thermoplastic polyurethane. In the second intermediate layer (15), ten closed channels (20) extending axially were formed. Each channel (20) has a cross-sectional area of 20 cm2. The channels (20) are positioned side by side, being evenly spaced on the perimeter of the second intermediate layer (15). The outer layer of fiber (12) (not shown in figure 13) surrounds the second intermediate layer (15). The channels (20) are arranged to be filled with a fluid concrete material (not shown), or with some other heavy fluid mass through the openings (not shown), which are formed in the outer layer of fiber (12).

权利要求:
Claims (24)
[0001]
1. Multilayer uninterrupted piping (1), including at least: - a fluid-tight inner layer (11) that is formed from a first thermoplastic polymer material; - an inner layer of fiber reinforced thermoplastic polymer (14), which includes a rolled fiber reinforcement and which surrounds the fluid-tight inner layer; - a first intermediate layer (13) which is formed from a second thermoplastic polymer material; - an outer layer of fiber reinforced thermoplastic polymer (12), which includes a rolled fiber reinforcement, characterized by the fact that at least one of the inner layer of fiber reinforced thermoplastic polymer (14) and the outer layer of thermoplastic polymer fiber reinforced (12) includes at least one fiber-containing layer (14a-b, 14d-e; 12a-b, 12d-e) and a reinforcement-free layer (14c, 14f; 12c, 12f), and in which the wound fiber reinforcement includes at least one fiber tape (4), and the first intermediate layer (13) is provided with at least one axially oriented channel (20).
[0002]
2. Multilayer piping (1) according to claim 1, characterized by the fact that the first intermediate layer (13) is formed from an expanded thermoplastic polymer material.
[0003]
3. Multilayer piping (1) according to claim 1, characterized in that the multilayer piping (1) further includes a second intermediate layer (15), which is formed from a third thermoplastic polymer material .
[0004]
4. Multilayer piping (1) according to claim 3, characterized in that the second intermediate layer (15) is provided with at least one channel (20) axially oriented.
[0005]
5. Multilayer piping (1) according to claim 1 or 4, characterized by the fact that the cross section of the channel (20) is circular.
[0006]
6. Multilayer piping (1) according to claim 1 or 4, characterized by the fact that the cross section of the channel (20) is oblong.
[0007]
7. Multilayer piping (1) according to claim 1 or 4, characterized by the fact that the channel cross section (20) is trapezoidal.
[0008]
8. Multilayer piping (1) according to claim 4, characterized in that the second intermediate layer (15) is provided with at least one heating element (20, 22) axially oriented.
[0009]
9. Multilayer piping (1) according to claim 1, characterized in that the multilayer piping (1) includes at least one fiber optic cable (6) that extends in the longitudinal direction of the piping multiple layers (1), and wherein said at least one fiber optic cable (6) is positioned in at least one of the layers (11; 12; 13; 14).
[0010]
10. Multilayer piping (1) according to claim 1, characterized by the fact that the multilayer piping (1) includes at least one fiber optic cable (6) which extends in the longitudinal direction of the piping multiple layers (1), and wherein said at least one fiber optic cable (6) is positioned in at least one of the layers (11; 12; 13; 14; 15).
[0011]
11. Machine installation (30) for the manufacture of an uninterrupted multilayer pipe (1), including a fluid-tight inner layer (11) that is formed of a first thermoplastic material, characterized by the fact that the machine installation ( 30) includes: - a first winding machine station (350), wherein the first winding machine station (350) includes at least: a roller turntable (352a) arranged to wind the fiber tape (4 ) around the fluid-tight inner layer (11), to form a fiber reinforced layer (14a) in a fiber reinforced polymer inner layer (14); and an extruder (320) arranged to form a reinforcement-free layer (14c), from a thermoplastic polymer material surrounding the layer (14a); - an extruder (330) arranged to form a first intermediate layer (13), which comprises a thermoplastic polymer material and which surrounds the fiber-reinforced inner layer (14), and in which the first intermediate layer (13) is provided with at least one channel (20) axially oriented; and - a second winding machine station (360), wherein the second winding machine station (360) includes at least: a roller turntable (362a) arranged to wrap the fiber tape (4) around the other layers (11, 13, 14) of the multilayer tubing (1), to form a fiber reinforced layer (12a) in an outer layer of fiber reinforced polymer (12); and an extruder (340) arranged to form a reinforcement-free layer (12c), from a thermoplastic polymer material surrounding the layer (12a).
[0012]
12. Machine installation (30), according to claim 11, characterized by the fact that the extruder (330) is made up of an extruder (370), provided with an extrusion head (371), in which, in a annular space (374) formed between the calibration element (378) of the extrusion head (371) and the multilayer piping (1) accommodated in the extrusion head (371), at least one mandrel (379) is positioned, for formation of the axially oriented channel (20) in the first intermediate layer (13).
[0013]
13. Machine installation (30), according to claim 11, characterized in that the machine installation (30) further comprises an extruder (370), arranged to form a second intermediate layer (15), which is formed from a third thermoplastic polymer material, the second intermediate layer (15) being positioned in the following optional order: between the second inner fiber layer (14) and the first intermediate layer (13), or between the first layer intermediate (13) and the outer layer of fiber reinforced polymer (12).
[0014]
14. Machine installation (30), according to claim 13, characterized by the fact that the extruder (370) is provided with an extrusion head (371), in which, in an annular space (374) formed between the calibration element (378) of the extrusion head (371) and the multilayer piping (1) accommodated in the extrusion head (371), at least one mandrel (379) is positioned to form an axially oriented channel (20 ) in the next intermediate layer (15).
[0015]
15. Machine installation (30) according to claim 11, characterized by the fact that the machine installation (30) further comprises an extruder (310) arranged to form the fluid-tight inner layer (11), which it is formed from a first thermoplastic polymer material.
[0016]
16. Machine installation (30) according to claim 11 or 13, characterized in that the machine installation (30) further comprises at least one coil or roll (5), arranged to accommodate an optical fiber cable (6).
[0017]
17. Machine installation (30) according to claim 16, characterized in that at least one coil or roll (5) is arranged to feed an optical fiber cable (6) into the extruder (340).
[0018]
18. Machine installation (30) according to claim 15 or 16, characterized by the fact that at least one coil or roll (5) is arranged to feed an optical fiber cable (6) into the extruder (310) .
[0019]
19. Method for producing a multilayer uninterrupted pipe (1), characterized by the fact that the method includes the steps of: (a) providing a fluid-tight inner layer (11), which is formed of a thermoplastic polymer; (b) forming a fiber-reinforced inner layer (14) around the fluid-tight inner layer (11) by wrapping a fiber tape (4) around the fluid-tight inner layer (11) in order to form at least one fiber layer (14a) and, by extrusion, apply a reinforcement-free layer (14c) on the fiber layer (14a); (c) forming, by extrusion, a first intermediate polymer layer (13) around the fiber-reinforced inner layer (14), wherein the first intermediate layer (13) is provided with at least one channel (20) axially oriented; and (d) forming a reinforced outer layer of fiber (12), by wrapping a fiber tape (4) around the other layers (11, 13, 14) of the multilayer pipe (1), so as to form at least one fiber layer (12a) and, by means of extrusion, apply a reinforcement-free layer (12c) on the fiber layer (12a).
[0020]
20. Method, according to claim 19, characterized by the fact that the method in step (c) also includes providing the extrusion head (371) of an extruder (370) in an annular space (374), which is formed between the calibration element (378) of the extrusion head (371) and the multilayer piping (1) accommodated in the extrusion head (371), of at least one mandrel (379), which forms an axially oriented channel ( 20) in the first intermediate polymer layer (13).
[0021]
21. Method, according to claim 19, characterized by the fact that the method also includes the step of: (cl) forming, by extrusion, a second intermediate layer (15), which is formed from a third material of polymer which is optionally positioned in the following order: between the fiber-reinforced inner layer (14) formed in step (b) and the first polymer intermediate layer (13) formed in step (c), or between the first intermediate layer of polymer (13) formed in step (c) and the fiber-reinforced outer layer (12) formed in step (d).
[0022]
22. Method according to claim 21, characterized by the fact that the method in step (cl) also includes providing the extrusion head (371) of an extruder (370) in an annular space (374), which is formed between the calibration element (378) of the extrusion head (371) and the multilayer piping (1) accommodated in the extrusion head (371), of at least one mandrel (379), forming an axially oriented channel (20 ) in the second intermediate polymer layer (15).
[0023]
23. Method according to claim 19, characterized by the fact that the method in step (a) includes forming, by extrusion, the fluid-tight inner layer (11), which is formed from a thermoplastic polymer.
[0024]
24. Method, according to claim 19, characterized by the fact that the method includes the use of a machine installation (30), as described in claim 13, and in which the method further includes positioning the installation of machine (30) on a deck (9) on board a ship.

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同族专利:

公开号 | 公开日

AP2014008004A0|2014-10-31|

EP2841835A4|2016-03-16|

NO20130379A1|2013-09-16|

EA028688B1|2017-12-29|

ZA201406704B|2015-12-23|

JP6087420B2|2017-03-08|

NZ700922A|2016-10-28|

CU24241B1|2017-02-02|

CA2867078A1|2013-09-19|

CN104334950B|2016-05-11|

CN104334950A|2015-02-04|

HK1208061A1|2016-02-19|

AU2013232843A1|2014-10-30|

US20150053293A1|2015-02-26|

IL234637A|2018-04-30|

DOP2014000210A|2014-12-15|

PH12014501999A1|2014-11-24|

MX365797B|2019-06-14|

MX2014011034A|2015-05-12|

NO334988B1|2014-08-18|

IN2014DN08059A|2015-05-01|

CA2867078C|2019-09-10|

WO2013137745A1|2013-09-19|

EA201491688A1|2015-01-30|

AU2013232843B2|2017-07-27|

PH12014501999B1|2014-11-24|

EP2841835B1|2019-02-27|

EP2841835A1|2015-03-04|

NO20130378A1|2013-09-16|

JP2015512019A|2015-04-23|

PE20150093A1|2015-02-01|

CU20140108A7|2015-05-28|

SG11201405676WA|2014-10-30|

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法律状态:
2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-07-09| B06T| Formal requirements before examination|

2020-05-19| B09A| Decision: intention to grant|

2020-10-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/03/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

NO20120302|2012-03-14|

PCT/NO2013/050051|WO2013137745A1|2012-03-14|2013-03-14|Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline|

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