CN115274210A - Zero-buoyancy photoelectric composite transverse watertight cable and manufacturing method and application thereof - Google Patents
Zero-buoyancy photoelectric composite transverse watertight cable and manufacturing method and application thereof Download PDFInfo
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- CN115274210A CN115274210A CN202211075144.4A CN202211075144A CN115274210A CN 115274210 A CN115274210 A CN 115274210A CN 202211075144 A CN202211075144 A CN 202211075144A CN 115274210 A CN115274210 A CN 115274210A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1091—Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/12—Floating cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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Abstract
The invention discloses a zero-buoyancy photoelectric composite transverse watertight cable which is provided with a wrapping layer, wherein a wire set is arranged in the wrapping layer, the wire set is provided with a plurality of wires, optical fibers and a ground wire, the wires are provided with conductors, the conductors are formed by twisting silver-plated copper wires, a first crosslinked polyethylene insulator is extruded outside the conductors, the optical fibers are provided with single-mode optical fibers, a stainless steel beam tube is arranged outside the single-mode optical fibers, a high-density polyethylene material sheath is extruded outside the stainless steel beam tube, the ground wire is provided with a ground wire conductor, and a second crosslinked polyethylene insulator is extruded outside the ground wire conductor; the wire winding structure comprises a wire winding group, and is characterized in that an inner sheath, a tensile layer, a foaming layer and an outer sheath are sequentially arranged outside the winding layer, wherein a filling body is arranged between the winding layer and the wire group. The invention also discloses a manufacturing method and application of the zero-buoyancy photoelectric composite transverse watertight cable. The invention can freely suspend in any position in water, and is optimized on the structural design, so that the transverse water resistance and tensile resistance performance are excellent, and the use requirement of the composite watertight cable is met.
Description
Technical Field
The invention relates to a cable, in particular to a zero-buoyancy photoelectric composite transverse watertight cable and a manufacturing method and application thereof.
Background
When the underwater equipment works, the zero-buoyancy photoelectric composite transverse watertight cable is needed to meet the requirements of power supply and signal transmission. Although the existing zero-buoyancy photoelectric composite transverse watertight cable can meet basic requirements, the existing zero-buoyancy photoelectric composite transverse watertight cable is not enough in the aspects of transverse water-blocking performance and tensile performance, and cannot meet the requirements of complex working environments.
Disclosure of Invention
The invention aims to solve the problems and provides a zero-buoyancy photoelectric composite transverse watertight cable which is good in transverse water resistance and excellent in tensile property.
In order to achieve the purpose, the invention adopts the following technical scheme: a zero-buoyancy photoelectric composite transverse watertight cable is characterized by comprising a wrapping layer, wherein a wire group is arranged in the wrapping layer, the wire group is provided with a plurality of wires, optical fibers and a ground wire, the wires are provided with conductors, the conductors are formed by twisting silver-plated copper wires, a first crosslinked polyethylene insulator is extruded outside the conductors, the optical fibers are provided with single-mode optical fibers, a stainless steel beam tube is arranged outside the single-mode optical fibers, a high-density polyethylene material sheath is extruded outside the stainless steel beam tube, the ground wire is provided with a ground wire conductor, and a second crosslinked polyethylene insulator is extruded outside the ground wire conductor;
the wrapping layer is sequentially provided with an inner sheath, a tensile layer, a foaming layer and an outer sheath, and a filling body is arranged between the wrapping layer and the wire group.
Further: the filling body is solid filling and/or aramid fiber.
Further: the wrapping layer is made of non-woven fabrics, and the covering rate is not less than 30%.
Further: the inner sheath is made of polyether polyurethane, and the outer sheath is made of polyether polyurethane.
Further: the tensile layer is made of high-modulus fiber double-layer forward and reverse winding modes.
Further: the foaming layer is made of foaming polyurethane.
On the other hand, the manufacturing method of the zero-buoyancy photoelectric composite transverse watertight cable is characterized in that: comprises the following steps:
manufacturing a lead, namely twisting silver-plated copper wires into a conductor, and extruding a first cross-linked polyethylene insulator outside the conductor;
manufacturing an optical fiber, namely arranging a stainless steel beam tube outside the single-mode optical fiber, and extruding a sheath outside the stainless steel beam tube;
cabling, namely arranging and twisting the conducting wires, the optical fibers, the ground wires and the solid filling bodies into a cable according to a clockwise direction by adopting a cabling machine with a back-twist function, wherein the cabling direction is a right direction, and meanwhile, a non-woven fabric is wrapped to form a wrapping layer, and the covering rate is not less than 30%;
extruding the inner sheath;
winding the tensile layer, namely winding the first tensile layer by adopting a minimum 36-disc cage winch, wherein the winding direction is in the left direction, the included angle between the fiber rope and the axial direction of the cable is controlled to be 30-45 degrees and reach 100% of coverage, and aramid fiber is sparsely wound; winding the second tensile layer by adopting the same equipment and control mode, wherein the winding direction is the right direction;
extruding and molding a foaming layer, wherein a disc tool with large inner diameter and large width is adopted for winding in the step to prevent the foaming layer from being extruded and deformed under stress, and the ratio of the outer diameter to the inner diameter of the disc tool is 2:1.6;
and extruding the outer protective layer.
Further, a layer of polyether polyurethane is extruded outside the foaming layer to form an outer protective layer, the foaming layer is protected, and the foaming layer bears 40MPa of transverse water pressure, extrusion molding is carried out by adopting an extrusion molding die in the step, so that the extruded foaming layer is small in thickness, small in outer diameter fluctuation range, smooth and round, the extrusion molding die is provided with an inner die and a stepped outer die, the inner die is provided with a channel, the channel is provided with a closing-up conical section and a cylindrical section which are sequentially arranged, a flow channel is arranged between the inner die and the stepped outer die, the outer wall of the flow channel is provided with a buffer structure, a buffer chamfer angle in the buffer structure is 160-170 degrees, and the roughness of the side wall of the flow channel is 0.6-0.9 mu m.
On the other hand, the application of the zero-buoyancy photoelectric composite transverse watertight cable manufactured by the manufacturing method is applied to underwater sonar equipment.
Compared with the prior art, the invention has the following beneficial effects: the invention can freely suspend in any position in water, and is optimized on the structural design, so that the transverse water resistance and tensile resistance performance are excellent, and the use requirement of the composite watertight cable is met.
Drawings
Fig. 1 is a structural diagram of a zero-buoyancy photoelectric composite transverse watertight cable in embodiment 1.
FIG. 2 is a diagram showing the structure of the disk in example 2.
FIG. 3 is a view showing the structure of an extrusion mold in example 2.
Detailed Description
Example 1
Referring to fig. 1, the zero-buoyancy photoelectric composite transverse watertight cable comprises a wrapping layer, wherein a wire group is arranged in the wrapping layer, the wire group comprises a plurality of wires, optical fibers and a ground wire, the wires comprise conductors 11, the conductors 11 are formed by twisting silver-plated copper wires, a first cross-linked polyethylene insulator 12 is extruded outside the conductors, the density of the first cross-linked polyethylene insulator 12 is less than 1g/cm & lt 3 & gt (the first cross-linked polyethylene insulator 12 is extruded outside the conductors), the optical fibers comprise single-mode optical fibers 51, a stainless steel bundle pipe 52 is arranged outside the single-mode optical fibers 51 and used for protecting the optical fibers, a high-density polyethylene material sheath 53 is extruded outside the stainless steel bundle pipe 52, the ground wire comprises a ground wire conductor 21, and the ground wire conductor 21 is extruded outside the second cross-linked polyethylene insulator 22.
The conductor 11 is a silver-plated copper conductor, and the current-carrying capacity of 20% of the same conductor section is improved. The first cross-linked polyethylene insulator is a cross-linked polyethylene material, has high dielectric strength, temperature resistance level of 90 ℃, light specific gravity and improved carrying capacity.
The inner sheath 42, the tensile layer 43, the foaming layer 44 and the outer sheath 45 are sequentially arranged outside the wrapping layer, wherein the filling body 3 is arranged between the wrapping layer 41 and the wire group.
In this embodiment, the filler 3 is solid filler and/or aramid fiber.
In this embodiment, the lapping layer 41 is made of non-woven fabric, and the lapping rate is not less than 30%.
In this embodiment, the inner sheath 42 is made of polyether polyurethane, which is beneficial to the vulcanization connection of the connector.
In this embodiment, the tensile layer 43 is made of high modulus fiber double-layer forward and reverse winding, and meets the requirements of working tension and breaking tension of the cable.
In this embodiment, the foaming layer 44 is made of foaming polyurethane, and maintains a stable foaming structure.
In this embodiment, the outer sheath 45 is made of polyether polyurethane, and protects the foaming layer and resists horizontal water pressure.
The density of the fresh water is 1g/cm < 3 >, the density of the cable is the weight of the finished cable in unit length divided by the volume of the finished cable in unit length, the density of the cable is 1g/cm < 3 +/-1% by accurately controlling the weight and the outer diameter of the cable, the transverse watertight cable can freely suspend in any position in water, the transverse water resistance and the tensile resistance are excellent by optimizing the structural design, and the use requirement of the composite watertight cable is met.
Example 2
This example produced the transverse watertight cable of example 1.
The structures and numbers involved in the extrusion die in this example are as follows: the cable forming die comprises a channel 60, an inner die 61, an inner die opening 61a, a stepped outer die 62, a flow channel 63, a buffer chamfer 621, a cable formed by a cable after being lapped, a cable extruded by a cable B and a forming area C.
The embodiment relates to a manufacturing method of a zero-buoyancy photoelectric composite transverse watertight cable, which comprises the following steps:
and a step of manufacturing a lead, in which the silver-plated copper wires are stranded into a conductor (preferably, a nano mold is adopted by a stranding mold to reduce damage to a silver-plated layer), and a first cross-linked polyethylene insulator is extruded outside the conductor.
And manufacturing the optical fiber, namely arranging a stainless steel beam tube outside the single-mode optical fiber, and extruding a sheath outside the stainless steel beam tube.
And cabling, namely arranging and twisting the conducting wires, the optical fibers, the ground wires and the solid filling bodies into a cable according to a clockwise direction by adopting a cabling machine with a back-twist function, wherein the cabling direction is a right direction, and meanwhile, a non-woven fabric is wrapped to form a wrapping layer, and the covering rate is not less than 30%.
And (3) extruding the inner sheath.
Winding the tensile layer, namely winding the first tensile layer by adopting a minimum 36-disc cage winch, wherein the winding direction is the left direction, the included angle between the fiber rope and the cable in the axial direction is controlled to be 30-45 degrees and reach 100% of coverage, and simultaneously, aramid fiber is sparsely wound; and winding the second tensile layer by adopting the same equipment and control mode, wherein the winding direction is the right direction.
The step of extrusion molding foaming layer adopts the dish utensil of big internal diameter, large width to receive the line in this step, prevents foaming layer atress extrusion deformation, and wherein, the ratio of this dish utensil external diameter and internal diameter is 2:1.6 (the ratio of the outer diameter to the inner diameter of the conventional dish is 2. Specifically, the inner diameter of the disc is 1600mm, the outer diameter is 2000mm, the width is 1800mm, and the disc is a stainless steel disc.
And extruding the outer sheath.
In this embodiment, a layer of polyether polyurethane is extruded outside a foaming layer to form an outer protective layer, protect the foaming layer, and bear a transverse water pressure of 40MPa, in this step, an extrusion molding die (see fig. 3) is used for extrusion molding, so that the extruded thickness is small, the fluctuation range of the outer diameter is small, the extruded thickness is smooth and round, the extrusion molding die is provided with an inner die and a stepped outer die, the inner die is provided with a channel (through a cable), the channel is provided with a closing-in conical section and a cylindrical section which are sequentially arranged, a flow channel (for flowing extrusion molding fluid) is arranged between the inner die and the stepped outer die, the outer wall of the flow channel is provided with a buffer structure, and a buffer chamfer angle in the buffer structure is 160-170 degrees (preferably 165 degrees), wherein the roughness of the side wall (the inner wall surface of the outer die and the outer wall surface of the inner die) of the flow channel is 0.6-0.9 μm (preferably 0.8 μm). The design of centre form die orifice extension (part extends to outside the external mold), the design of cascaded external mold and buffering chamfer (specific chamfer value) in addition can reduce extrusion pressure, and the cooperation reduces the surface roughness (specific roughness) of the runner part of centre form outer wall and external mold inner wall to and global design, combined action makes that thickness is little, the fluctuation range of external diameter is little, smooth rounding after extruding.
It should be noted that, from the beginning of conductor production to the last outer sheath process, in each process of production, the size and weight are strictly controlled, and finally the density of the cable is 1g/cm3 +/-1%, so as to realize free suspension of the cable at any position in water.
Example 3
An application of the zero-buoyancy photoelectric composite transverse watertight cable in the embodiment 1 or the embodiment 2 (the zero-buoyancy photoelectric composite transverse watertight cable prepared by the manufacturing method in the embodiment) is applied to underwater sonar equipment.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, and all technical solutions belonging to the principle of the present invention belong to the protection scope of the present invention. Modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (9)
1. The zero-buoyancy photoelectric composite transverse watertight cable is characterized by comprising a wrapping layer, wherein a wire group is arranged in the wrapping layer, the wire group comprises a plurality of wires, optical fibers and a ground wire, the wires comprise conductors, the conductors are formed by stranding silver-plated copper wires, a first crosslinked polyethylene insulator (12) is extruded outside the conductors, the optical fibers comprise single-mode optical fibers (51), a stainless steel bundle pipe (52) is arranged outside the single-mode optical fibers (51), a high-density polyethylene material sheath (53) is extruded outside the stainless steel bundle pipe (52), the ground wire comprises a ground wire conductor (21), and a second crosslinked polyethylene insulator (22) is extruded outside the ground wire conductor (21);
an inner sheath (42), a tensile layer (43), a foaming layer (44) and an outer sheath (45) are sequentially arranged outside the wrapping layer, wherein a filling body (3) is arranged between the wrapping layer (41) and the wire group.
2. The zero-buoyancy photoelectric composite transverse watertight cable according to claim 1, wherein: the filling body (3) is solid filling and/or aramid fiber.
3. The zero-buoyancy photoelectric composite transverse watertight cable according to claim 1, wherein: the wrapping layer (41) is made of non-woven fabrics, and the covering rate is not less than 30%.
4. The zero-buoyancy photoelectric composite transverse watertight cable according to claim 1, wherein: the inner sheath (42) is made of polyether polyurethane, and the outer sheath (45) is made of polyether polyurethane.
5. The zero-buoyancy photoelectric composite transverse watertight cable according to claim 1, wherein: the tensile layer (43) is made by adopting a high-modulus fiber double-layer forward and reverse winding mode.
6. The zero-buoyancy photoelectric composite transverse watertight cable according to claim 1, wherein: the foaming layer (44) is made of foaming polyurethane.
7. A method for manufacturing a zero-buoyancy photoelectric composite transverse watertight cable according to any one of claims 1 to 6, wherein the method comprises the following steps: comprises the following steps:
manufacturing a lead, namely twisting silver-plated copper wires into a conductor, and extruding a first cross-linked polyethylene insulator outside the conductor;
manufacturing an optical fiber, namely arranging a stainless steel beam tube outside the single-mode optical fiber, and extruding a sheath outside the stainless steel beam tube;
cabling, namely arranging and twisting the conducting wires, the optical fibers, the ground wires and the solid filling bodies into a cable according to a clockwise direction by adopting a cabling machine with a back-twist function, wherein the cabling direction is a right direction, and meanwhile, a wrapping layer is formed by wrapping non-woven fabrics, and the covering rate is not less than 30%;
extruding the inner sheath;
winding the tensile layer, namely winding the first tensile layer by adopting a minimum 36-disc cage winch, wherein the winding direction is in the left direction, the included angle between the fiber rope and the axial direction of the cable is controlled to be 30-45 degrees and reach 100% of coverage, and aramid fiber is sparsely wound; winding the second tensile layer by adopting the same equipment and control mode, wherein the winding direction is the right direction;
the step of extrusion molding foaming layer adopts the dish utensil of big internal diameter, large width to receive the line in this step, prevents foaming layer atress extrusion deformation, and wherein, the ratio of this dish utensil external diameter and internal diameter is 2:1.6;
and extruding the outer sheath.
8. The method for manufacturing a zero-buoyancy photoelectric composite transverse watertight cable according to claim 7,
the foaming layer is externally extruded with a layer of polyether polyurethane to form an outer protective layer, the foaming layer is protected, and the foaming layer bears 40MPa of transverse water pressure, in the step, extrusion molding is carried out by adopting an extrusion molding die, so that the extruded foaming layer is small in thickness, small in outer diameter fluctuation range, smooth and round, the extrusion molding die is provided with an inner die and a stepped outer die, the inner die is provided with a channel, the channel is provided with a closing-in conical section and a cylindrical section which are sequentially arranged, a flow channel is arranged between the inner die and the stepped outer die, the outer wall of the flow channel is provided with a buffer structure, a buffer chamfer angle in the buffer structure is 160-170 degrees, and the roughness of the side wall of the flow channel is 0.6-0.9 mu m.
9. The application of the zero-buoyancy photoelectric composite transverse watertight cable manufactured by the manufacturing method according to claim 7 or 8 is characterized by being applied to underwater sonar equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211075144.4A CN115274210A (en) | 2022-09-03 | 2022-09-03 | Zero-buoyancy photoelectric composite transverse watertight cable and manufacturing method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211075144.4A CN115274210A (en) | 2022-09-03 | 2022-09-03 | Zero-buoyancy photoelectric composite transverse watertight cable and manufacturing method and application thereof |
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| Publication Number | Publication Date |
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| CN115274210A true CN115274210A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211075144.4A Pending CN115274210A (en) | 2022-09-03 | 2022-09-03 | Zero-buoyancy photoelectric composite transverse watertight cable and manufacturing method and application thereof |
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| CN (1) | CN115274210A (en) |
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- 2022-09-03 CN CN202211075144.4A patent/CN115274210A/en active Pending
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