CN113446440A - Winding composite intelligent pipeline with signal transmission function and preparation method thereof - Google Patents
Winding composite intelligent pipeline with signal transmission function and preparation method thereof Download PDFInfo
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- CN113446440A CN113446440A CN202110633693.8A CN202110633693A CN113446440A CN 113446440 A CN113446440 A CN 113446440A CN 202110633693 A CN202110633693 A CN 202110633693A CN 113446440 A CN113446440 A CN 113446440A
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- fiber
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- winding
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- 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
- F16L9/125—Rigid pipes of plastics with or without reinforcement electrically conducting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
Abstract
The invention discloses a winding composite intelligent pipeline with a signal transmission function and a preparation method thereof, wherein the winding composite intelligent pipeline with the signal transmission function comprises a thermoplastic resin inner pipe, a fiber composite layer, an optical fiber wire, a fiber fixing layer and a thermoplastic resin protective outer layer, wherein the fiber composite layer comprises a first fiber prepreg tape narrow band and a second fiber prepreg tape narrow band, the fiber fixing layer comprises a first fiber flat filament and a second fiber flat filament, and the outer surface of the thermoplastic resin inner pipe is wrapped with the first fiber prepreg tape narrow band; the composite intelligent pipeline comprises a thermoplastic resin inner pipe, a winding fiber reinforced layer and an optical fiber conducting wire in the middle, and a thermoplastic resin protective layer outside. The inner pipe, the fiber composite layer, the fiber fixing layer and the outer pipe are compounded in a surface softening or melting state respectively, so that the composite layers are compact in structure and are completely fused into a whole.
Description
Technical Field
The invention relates to the technical field of pipeline preparation, in particular to a winding composite intelligent pipeline with a signal transmission function and a preparation method thereof.
Background
Pipeline systems play an increasingly greater role in the fields of industry, agriculture, construction and the like, and important projects also put higher requirements on the performance of safe operation, implementation monitoring and the like of pipelines.
At present, pipeline systems such as an oil pumping pipe of a land oilfield, an underwater oil and gas delivery pipe for offshore oil extraction, a long-distance water delivery pipe and the like cannot realize signal transmission, once leakage occurs, the leakage point cannot be found and positioned in time, and great economic loss and casualties are caused frequently.
The existing fiber bundle reinforced polyethylene composite pipe has the defects that the inside of the existing fiber bundle reinforced polyethylene composite pipe is difficult to soak due to the large diameter of the fiber bundle, and the risk of slippage and fracture of the fiber bundle inside the existing fiber bundle reinforced polyethylene composite pipe exists after the existing fiber bundle reinforced polyethylene composite pipe runs for a long time, so that the existing pipeline fails; the processing technology of the continuous glass fiber tape winding reinforced polyethylene composite pipe is complex, and the product cannot be detected in a positioning way after being buried; meanwhile, the existing fiber prepreg tape adopts a full-coating mode during composite winding, namely, the tapes are wound in a stacking mode, so that the inner resin layer and the outer resin layer are separated and cannot be tightly combined.
In order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide a winding composite intelligent pipeline with a signal transmission function and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
the existing fiber bundle reinforced polyethylene composite pipe has the defects that the inside of the existing fiber bundle reinforced polyethylene composite pipe is difficult to soak due to the large diameter of the fiber bundle, and the risk of slippage and fracture of the fiber bundle inside the existing fiber bundle reinforced polyethylene composite pipe exists after the existing fiber bundle reinforced polyethylene composite pipe runs for a long time, so that the existing pipeline fails; the processing technology of the continuous glass fiber tape winding reinforced polyethylene composite pipe is complex, and the product cannot be detected in a positioning way after being buried; meanwhile, the existing fiber prepreg tape adopts a full-coating mode during composite winding, namely, the tapes are wound in a stacking mode, so that the inner resin layer and the outer resin layer are separated and cannot be tightly combined.
The purpose of the invention can be realized by the following technical scheme:
a winding composite intelligent pipeline with signal transmission function comprises a thermoplastic resin inner pipe, a fiber composite layer, an optical fiber lead, a fiber fixing layer and a thermoplastic resin protective outer layer, the fiber composite layer comprises a first fiber prepreg tape narrow band and a second fiber prepreg tape narrow band, the fiber fixing layer comprises a first fiber flat filament and a second fiber flat filament, the outer surface of the thermoplastic resin inner tube is wrapped with a first fiber prepreg tape narrow band, the outer surface of the first fiber prepreg tape narrow band is wrapped with a second fiber prepreg tape narrow band, a plurality of optical fiber conducting wires which are uniformly distributed in a ring shape are laid on the outer surface of the second fiber prepreg tape narrow band, the surface of one side of the optical fiber conducting wire, which is far away from the second fiber prepreg tape narrow band, is wrapped with a first fiber flat filament, the outer surface of the first flat fiber is wrapped with a second flat fiber, and the outer surface of the second flat fiber is wrapped with a thermoplastic resin protective outer layer;
the first fiber prepreg tape narrow tape and the second fiber prepreg tape narrow tape are identical in shape and are arranged in a crossed mode, the first fiber prepreg tape narrow tape and the second fiber prepreg tape narrow tape are respectively wound on the outer surface of the thermoplastic resin inner tube in an inclined mode in a forward and reverse direction, the first fiber flat filament and the second fiber flat filament are identical in shape and are arranged in a crossed mode, and the first fiber flat filament and the second fiber flat filament are wound on the outer surface of the optical fiber conducting wire in an inclined mode in a forward and reverse direction.
Further, the thickness of the inner pipe wall of the thermoplastic resin is 3-10 mm.
Furthermore, the bandwidth of the first fiber prepreg tape narrow tape and the bandwidth of the second fiber prepreg tape narrow tape are 5-10mm, and the inclined winding angle of the first fiber prepreg tape narrow tape and the second fiber prepreg tape narrow tape is 50-60 degrees.
Furthermore, the number of the optical fiber conducting wires is 1-8.
Furthermore, the bandwidth of the first flat fiber and the second flat fiber is 5-10mm, and the inclined winding angle of the first flat fiber and the second flat fiber is 50-60 degrees.
Further, the thermoplastic resin inner tube and the thermoplastic resin protective outer layer are mixed by one or more of high-density polyethylene, cross-linked polyethylene, heat-resistant polyethylene, polypropylene and polybutylene in any proportion.
Furthermore, the fiber composite layer and the fiber fixing layer are made of one or more of carbon fiber, aramid fiber, polyester fiber, ultra-high molecular weight polyethylene fiber and glass fiber which are mixed in any proportion.
A preparation method of a winding composite intelligent pipeline with a signal transmission function comprises the following steps:
step one, extruding the plasticized thermoplastic resin into an inner pipe forming die through a first extruder to obtain a thermoplastic resin inner pipe with the wall thickness of 3-10mm, and performing spray cooling in a first vacuum sizing box;
secondly, obliquely winding the first fiber prepreg tape narrow tape and the second fiber prepreg tape narrow tape on the outer surface of the thermoplastic resin inner tube in a positive-negative direction by a first winding machine and a second winding machine respectively, wherein the winding angle is 50-60 degrees, and heating by a first oven to obtain a winding core tube;
laying the optical fiber lead on the outer surface of the winding core pipe along the axial direction of the pipe to obtain the winding core pipe paved with the optical fiber lead, obliquely winding the first fiber flat filament and the second fiber flat filament on the winding core pipe paved with the optical fiber lead in a positive-negative direction through a third winding machine and a fourth winding machine respectively, wherein the winding angle is 50-60 degrees, and heating the fiber flat filament by a second oven to obtain a reinforced core pipe;
step four, the reinforced core pipe is dragged into a composite die through a first tractor, the thermoplastic resin is heated to be molten through a second extruder and extruded into the composite die, the molten thermoplastic resin and the reinforced core pipe are compounded in the composite die to obtain a composite pipe, and the composite pipe is sprayed and cooled in a second vacuum sizing box;
and fifthly, the spray-cooled composite pipe is pulled by a second tractor to enter a cutting machine, and is coiled by a coiling machine to obtain the wound composite intelligent pipeline with the signal transmission function.
The invention has the beneficial effects that:
the composite intelligent pipeline comprises a thermoplastic resin inner pipe, a winding fiber reinforced layer and an optical fiber conducting wire in the middle, and a thermoplastic resin protective layer outside. The inner pipe, the fiber composite layer, the fiber fixing layer and the outer pipe are compounded in a surface softening or melting state respectively, so that the composite layers are compact in structure and are completely fused into a whole. The intelligent pipeline has the advantages that the problem that the leakage of pipelines such as an oil pumping pipe, a gathering pipe, a buried long-distance water supply pipe and the like in the land oil field cannot be found and repaired in time in the conveying process is effectively solved, the intelligent pipeline has a signal transmission function besides good pressure resistance, the blank of the domestic thermoplastic composite pipe real-time monitoring technology is filled, and the intelligent pipeline is suitable for industrial popularization.
The invention uses the fiber prepreg tape narrow tape and the fiber flat wire, the width of the fiber prepreg tape narrow tape and the fiber flat wire is 2-8mm, the thickness of the fiber prepreg tape narrow tape and the fiber flat wire is 0.3-0.7mm, the fiber prepreg tape narrow tape and the fiber flat wire can be well pre-impregnated, and the impregnation degree is 85-100%. The winding mode adopts positive and negative cross grid type winding, and the inner layer resin and the outer layer resin can be tightly combined into a whole through grids between the fiber composite narrow band and the fiber flat filament layer.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an expanded view of the internal structure of the present invention.
In the figure, 1, a thermoplastic resin inner tube; 2. a first fiber prepreg tape strip; 3. a second fiber prepreg tape strip; 4. an optical fiber wire; 5. a first fiber flat filament; 6. a second fiber flat filament; 7. the thermoplastic resin protects the outer layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A winding composite intelligent pipeline with a signal transmission function is of a composite layer structure, the composite layer structure sequentially comprises a thermoplastic resin inner pipe 1, a fiber composite layer, an optical fiber lead 4, a fiber fixing layer and a thermoplastic resin protective outer layer 7 from the inside to the outside of the pipeline, the fiber composite layer comprises a first fiber prepreg tape narrow band 2 and a second fiber prepreg tape narrow band 3, the fiber fixing layer comprises a first fiber flat filament 5 and a second fiber flat filament 6, the outer surface of the thermoplastic resin inner pipe 1 is wrapped with the first fiber prepreg tape narrow band 2, the outer surface of the first fiber prepreg tape narrow band 2 is wrapped with the second fiber prepreg tape narrow band 3, a plurality of optical fiber leads 4 which are uniformly distributed in an annular shape are laid on the outer surface of the second fiber prepreg tape narrow band 3, and the surface of one side, far away from the second fiber prepreg tape narrow band 3, of the optical fiber lead 4 is wrapped with the first fiber flat filament 5, the outer surface of the first flat fiber 5 is wrapped with a second flat fiber 6, and the outer surface of the second flat fiber 6 is wrapped with a thermoplastic resin protective outer layer 7;
the thickness of the pipe wall of the thermoplastic resin inner pipe 1 is 3 mm;
first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3's the same and crossing arrangement of shape, according to the direction of one just turning over respectively the slope winding at the surface of thermoplastic resin inner tube 1, just first fibre preimpregnation area narrowband 2 is located the one side that is close to thermoplastic resin inner tube 1, second fibre preimpregnation area narrowband 3 is located the one side of keeping away from thermoplastic resin inner tube 1, the bandwidth of first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3 is 5 mm.
The first and second fiber prepreg tape strips 2 and 3 are wound at an oblique winding angle of 50 °.
The optical fiber leads 4 are uniformly and annularly laid on the outer surface of the second fiber prepreg tape narrow band 3 along the axial direction of the composite intelligent pipeline, and the number of the optical fiber leads 4 is 1;
the first flat fiber 5 and the second flat fiber 6 are identical in shape and are arranged in a crossed manner, the first flat fiber and the second flat fiber are obliquely wound on the outer surface of the optical fiber wire 4 in a positive-negative direction, a wound core pipe obtained after winding is compounded by heating, and the bandwidth of the first flat fiber 5 and the bandwidth of the second flat fiber 6 are 5 mm;
the first flat fiber filaments 5 and the second flat fiber filaments 6 are wound at an oblique angle of 50 °.
The thermoplastic resin protective outer layer 7 is formed by uniformly coating molten thermoplastic resin.
The working pressure of the continuous composite intelligent pipeline is 1.0 MPa.
The thermoplastic resin is one or more of high-density polyethylene, cross-linked polyethylene, heat-resistant polyethylene, polypropylene and polybutylene which are mixed in any proportion;
the fiber composite layer and the fiber fixing layer are made of one or more of carbon fiber, aramid fiber, polyester fiber, ultra-high molecular weight polyethylene fiber and glass fiber which are mixed in any proportion
The tensile strength of the fiber composite layer and the fiber fixing layer is 800 MPa.
The length of a single pipe of the composite intelligent pipeline is 10m, and the specification of the composite intelligent pipeline is 50 mm.
The width of the fiber prepreg tape narrow tape and the fiber flat filament is 2mm, the thickness of the fiber prepreg tape narrow tape and the fiber flat filament is 0.3mm, the fiber prepreg tape narrow tape and the fiber flat filament can be well pre-impregnated with the glass fiber monofilament, and the impregnation degree is 85%.
Example 2
A winding composite intelligent pipeline with a signal transmission function is of a composite layer structure, the composite layer structure sequentially comprises a thermoplastic resin inner pipe 1, a fiber composite layer, an optical fiber conductor 4, a fiber fixing layer and a thermoplastic resin protective outer layer 7 from the inside to the outside of the pipeline, the fiber composite layer comprises a first fiber prepreg tape narrow band 2 and a second fiber prepreg tape narrow band 3, the fiber fixing layer comprises a first fiber flat filament 5 and a second fiber flat filament 6, the outer surface of the thermoplastic resin inner pipe 1 is wrapped with the first fiber prepreg tape narrow band 2, the outer surface of the first fiber prepreg tape narrow band 2 is wrapped with the second fiber prepreg tape narrow band 3, a plurality of optical fiber conductors 4 which are uniformly distributed in an annular shape are laid on the outer surface of the second fiber prepreg tape narrow band 3, and the surface of one side, away from the second fiber prepreg tape narrow band 3, of the optical fiber conductors 4 is wrapped with the first fiber flat filament 5, the outer surface of the first flat fiber 5 is wrapped with a second flat fiber 6, and the outer surface of the second flat fiber 6 is wrapped with a thermoplastic resin protective outer layer 7;
the thickness of the pipe wall of the thermoplastic resin inner pipe 1 is 5 mm;
first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3's the same and crossing arrangement of shape, according to the direction of one just turning over respectively the slope winding at the surface of thermoplastic resin inner tube 1, just first fibre preimpregnation area narrowband 2 is located the one side that is close to thermoplastic resin inner tube 1, second fibre preimpregnation area narrowband 3 is located the one side of keeping away from thermoplastic resin inner tube 1, the bandwidth of first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3 is 7 mm.
The first and second fiber prepreg tape strips 2 and 3 are wound at an oblique winding angle of 55 °.
The optical fiber leads 4 are uniformly and annularly laid on the outer surface of the second fiber prepreg tape narrow band 3 along the axial direction of the composite intelligent pipeline, and the number of the optical fiber leads 4 is 5;
the first flat fiber 5 and the second flat fiber 6 are identical in shape and are arranged in a crossed manner, the first flat fiber and the second flat fiber are obliquely wound on the outer surface of the optical fiber wire 4 in a positive-negative direction, a wound core pipe obtained after winding is compounded by heating, and the bandwidth of the first flat fiber 5 and the bandwidth of the second flat fiber 6 are 7 mm;
the first flat fiber filaments 5 and the second flat fiber filaments 6 are wound at an oblique winding angle of 55 °.
The thermoplastic resin protective outer layer 7 is formed by uniformly coating molten thermoplastic resin.
The working pressure of the continuous composite intelligent pipeline is 5 MPa.
The thermoplastic resin is one or more of high-density polyethylene, cross-linked polyethylene, heat-resistant polyethylene, polypropylene and polybutylene which are mixed in any proportion;
the fiber composite layer and the fiber fixing layer are made of one or more of carbon fiber, aramid fiber, polyester fiber, ultra-high molecular weight polyethylene fiber and glass fiber which are mixed in any proportion
The tensile strength of the fiber composite layer and the fiber fixing layer is 1500 MPa.
The length of a single pipe of the composite intelligent pipeline is 5000m, and the specification of the composite intelligent pipeline is 500 mm.
The width of the fiber prepreg tape narrow tape and the fiber flat filament is 5mm, the thickness of the fiber prepreg tape narrow tape and the fiber flat filament is 0.5mm, the glass fiber monofilaments in the fiber prepreg tape narrow tape and the fiber flat filament can be well pre-impregnated, and the impregnation degree is 90%.
Example 3
A winding composite intelligent pipeline with a signal transmission function is of a composite layer structure, the composite layer structure sequentially comprises a thermoplastic resin inner pipe 1, a fiber composite layer, an optical fiber lead 4, a fiber fixing layer and a thermoplastic resin protective outer layer 7 from the inside to the outside of the pipeline, the fiber composite layer comprises a first fiber prepreg tape narrow band 2 and a second fiber prepreg tape narrow band 3, the fiber fixing layer comprises a first fiber flat filament 5 and a second fiber flat filament 6, the outer surface of the thermoplastic resin inner pipe 1 is wrapped with the first fiber prepreg tape narrow band 2, the outer surface of the first fiber prepreg tape narrow band 2 is wrapped with the second fiber prepreg tape narrow band 3, a plurality of optical fiber leads 4 which are uniformly distributed in an annular shape are laid on the outer surface of the second fiber prepreg tape narrow band 3, and the surface of one side, far away from the second fiber prepreg tape narrow band 3, of the optical fiber lead 4 is wrapped with the first fiber flat filament 5, the outer surface of the first flat fiber 5 is wrapped with a second flat fiber 6, and the outer surface of the second flat fiber 6 is wrapped with a thermoplastic resin protective outer layer 7;
the thickness of the pipe wall of the thermoplastic resin inner pipe 1 is 10 mm;
first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3's the same and crossing arrangement of shape, according to the direction of one just turning over respectively the slope winding at the surface of thermoplastic resin inner tube 1, just first fibre preimpregnation area narrowband 2 is located the one side that is close to thermoplastic resin inner tube 1, second fibre preimpregnation area narrowband 3 is located the one side of keeping away from thermoplastic resin inner tube 1, the bandwidth of first fibre preimpregnation area narrowband 2 and second fibre preimpregnation area narrowband 3 is 10 mm.
The first and second fiber prepreg tape strips 2 and 3 are wound at an oblique winding angle of 60 °.
The optical fiber leads 4 are uniformly and annularly laid on the outer surface of the second fiber prepreg tape narrow band 3 along the axial direction of the composite intelligent pipeline, and the number of the optical fiber leads 4 is 8;
the first flat fiber 5 and the second flat fiber 6 are identical in shape and are arranged in a crossed manner, the first flat fiber and the second flat fiber are obliquely wound on the outer surface of the optical fiber wire 4 in a positive-negative direction, a wound core pipe obtained after winding is compounded by heating, and the bandwidth of the first flat fiber 5 and the bandwidth of the second flat fiber 6 are 10 mm;
the first flat fiber 5 and the second flat fiber 6 are wound at an oblique winding angle of 60 °.
The thermoplastic resin protective outer layer 7 is formed by uniformly coating molten thermoplastic resin.
The working pressure of the continuous composite intelligent pipeline is 10 MPa.
The thermoplastic resin is one or more of high-density polyethylene, cross-linked polyethylene, heat-resistant polyethylene, polypropylene and polybutylene which are mixed in any proportion;
the fiber composite layer and the fiber fixing layer are made of one or more of carbon fiber, aramid fiber, polyester fiber, ultra-high molecular weight polyethylene fiber and glass fiber which are mixed in any proportion
The tensile strength of the fiber composite layer and the fiber fixing layer is 2500 MPa.
The single tube length of compound intelligent pipeline is 10000m, and its specification is 1000 mm.
The width of the fiber prepreg tape narrow tape and the fiber flat filament is 8mm, the thickness of the fiber prepreg tape narrow tape and the fiber flat filament is 0.7mm, the fiber prepreg tape narrow tape and the fiber flat filament can be well pre-impregnated with the glass fiber monofilament, and the impregnation degree is 100%.
Referring to fig. 1-2, the method for manufacturing a wound composite intelligent pipe with signal transmission function in the above embodiment includes the following steps:
step one, extruding the plasticized thermoplastic resin into an inner pipe forming die through a first extruder to obtain a thermoplastic resin inner pipe 1 with the wall thickness of 3-10mm, and performing spray cooling in a first vacuum sizing box;
secondly, obliquely winding the first fiber prepreg tape narrow tape 2 and the second fiber prepreg tape narrow tape 3 on the outer surface of the thermoplastic resin inner tube 1 in a positive-negative direction through a first winding machine and a second winding machine respectively, wherein the winding angle is 50-60 degrees, and heating the thermoplastic resin inner tube by a first oven to obtain a winding tube core tube;
laying the optical fiber lead 4 on the outer surface of the winding core pipe along the axial direction of the pipe to obtain the winding core pipe paved with the optical fiber lead 4, obliquely winding the first fiber flat filament 5 and the second fiber flat filament 6 on the winding core pipe paved with the optical fiber lead in a positive and negative direction through a third winding machine and a fourth winding machine respectively, wherein the winding angle is 50-60 degrees, and heating the winding core pipe through a second oven to obtain a reinforced core pipe;
step four, the reinforced core pipe is dragged into a composite die through a first tractor, the thermoplastic resin is heated to be molten through a second extruder and extruded into the composite die, the molten thermoplastic resin and the reinforced core pipe are compounded in the composite die to obtain a composite pipe, and the composite pipe is sprayed and cooled in a second vacuum sizing box;
and fifthly, the spray-cooled composite pipe is pulled by a second tractor to enter a cutting machine, and is coiled by a coiling machine to obtain the wound composite intelligent pipeline with the signal transmission function.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The winding composite intelligent pipeline with the signal transmission function is characterized by comprising a thermoplastic resin inner pipe (1), a fiber composite layer, an optical fiber conducting wire (4), a fiber fixing layer and a thermoplastic resin protective outer layer (7), wherein the fiber composite layer comprises a first fiber prepreg tape narrow band (2) and a second fiber prepreg tape narrow band (3), the fiber fixing layer comprises a first fiber flat filament (5) and a second fiber flat filament (6), the outer surface of the thermoplastic resin inner pipe (1) is wrapped with the first fiber prepreg tape narrow band (2), the outer surface of the first fiber prepreg tape narrow band (2) is wrapped with the second fiber prepreg tape narrow band (3), the outer surface of the second fiber prepreg tape narrow band (3) is paved with a plurality of optical fiber conducting wires (4) which are uniformly distributed in an annular shape, and the surface of one side, far away from the second fiber prepreg tape narrow band (3), of the optical fiber conducting wire (4) is wrapped with the first fiber flat filament (5), the outer surface of the first fiber flat filament (5) is wrapped with a second fiber flat filament (6), and the outer surface of the second fiber flat filament (6) is wrapped with a thermoplastic resin protective outer layer (7);
the first fiber prepreg tape narrow band (2) and the second fiber prepreg tape narrow band (3) are identical in shape and are arranged in a crossed mode, the first fiber prepreg tape narrow band and the second fiber prepreg tape narrow band are respectively wound on the outer surface of the thermoplastic resin inner tube (1) in an inclined mode in a positive-negative direction, the first fiber flat filament (5) and the second fiber flat filament (6) are identical in shape and are arranged in a crossed mode, and the first fiber flat filament and the second fiber flat filament are wound on the outer surface of the optical fiber conducting wire (4) in an inclined mode in a positive-negative direction.
2. The wound composite intelligent pipeline with the signal transmission function as claimed in claim 1, wherein the wall thickness of the thermoplastic resin inner pipe 1 is 3-10 mm.
3. A wound composite smart pipe with signal transmission function according to claim 1, characterized in that the first (2) and second (3) fiber prepreg tape narrow bands have a bandwidth of 5-10mm, and the first (2) and second (3) fiber prepreg tape narrow bands have an inclined winding angle of 50-60 °.
4. The wound composite intelligent pipeline with the signal transmission function according to claim 1, wherein the number of the optical fiber conductors (4) is 1-8.
5. The wound composite intelligent pipeline with signal transmission function according to claim 1, wherein the bandwidth of the first fiber flat wire (5) and the second fiber flat wire (6) is 5-10mm, and the inclined winding angle of the first fiber flat wire (5) and the second fiber flat wire (6) is 50-60 °.
6. The wound composite intelligent pipeline with the signal transmission function according to claim 1, wherein the thermoplastic resin inner pipe (1) and the thermoplastic resin protective outer layer (7) are both one or more of high-density polyethylene, cross-linked polyethylene, heat-resistant polyethylene, polypropylene and polybutylene mixed in any proportion.
7. The wound composite intelligent pipeline with the signal transmission function as claimed in claim 1, wherein the fiber composite layer and the fiber fixing layer are made of one or more of carbon fiber, aramid fiber, polyester fiber, ultra-high molecular weight polyethylene fiber and glass fiber in any proportion.
8. A preparation method of a winding composite intelligent pipeline with a signal transmission function is characterized by comprising the following steps:
step one, extruding the plasticized thermoplastic resin into an inner pipe forming die through a first extruder to obtain a thermoplastic resin inner pipe (1) with the wall thickness of 3-10mm, and performing spray cooling in a first vacuum sizing box;
secondly, obliquely winding the first fiber prepreg tape narrow tape (2) and the second fiber prepreg tape narrow tape (3) on the outer surface of the thermoplastic resin inner tube (1) in a positive and negative direction through a first winding machine and a second winding machine respectively, wherein the winding angle is 50-60 degrees, and heating the thermoplastic resin inner tube and the second fiber prepreg tape narrow tape by a first oven to obtain a winding core tube;
laying the optical fiber lead (4) on the outer surface of the winding core pipe along the axial direction of the pipe to obtain the winding core pipe laid with the optical fiber lead (4), obliquely winding the first fiber flat filament (5) and the second fiber flat filament (6) on the winding core pipe laid with the optical fiber lead in a positive and negative direction through a third winding machine and a fourth winding machine respectively, wherein the winding angle is 50-60 degrees, and heating the fiber lead by a second oven to obtain a reinforced core pipe;
step four, the reinforced core pipe is dragged into a composite die through a first tractor, the thermoplastic resin is heated to be molten through a second extruder and extruded into the composite die, the molten thermoplastic resin and the reinforced core pipe are compounded in the composite die to obtain a composite pipe, and the composite pipe is sprayed and cooled in a second vacuum sizing box;
and fifthly, the spray-cooled composite pipe is pulled by a second tractor to enter a cutting machine, and is coiled by a coiling machine to obtain the wound composite intelligent pipeline with the signal transmission function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110633693.8A CN113446440A (en) | 2021-06-07 | 2021-06-07 | Winding composite intelligent pipeline with signal transmission function and preparation method thereof |
Applications Claiming Priority (1)
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