CN213781660U - Compound longitudinal watertight cable for ships - Google Patents
Compound longitudinal watertight cable for ships Download PDFInfo
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- CN213781660U CN213781660U CN202023149646.6U CN202023149646U CN213781660U CN 213781660 U CN213781660 U CN 213781660U CN 202023149646 U CN202023149646 U CN 202023149646U CN 213781660 U CN213781660 U CN 213781660U
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Abstract
The utility model discloses a composite longitudinal watertight cable for ships, which comprises a cable core, wherein the cable core is coated with a first water-blocking tape, an inner sheath, an armor layer, a second water-blocking tape and an outer sheath in sequence; the cable core comprises an optical unit, at least one pair-twisted shielding unit and a plurality of insulating wire core shielding units; the pair-twisted shielding units are symmetrically distributed around the center of the cable, wherein one insulating wire core shielding unit is positioned at the center of the cable; the optical unit comprises a reinforcing piece located at the center, a plurality of optical fiber units are arranged around the reinforcing piece, each optical fiber unit comprises a bare optical fiber and a tight cladding layer coated outside the bare optical fiber, a water blocking material is filled between every two adjacent optical fiber units, and a sheath is coated on the outer surface of each optical unit. The cable can be suitable for being matched with marine equipment for installation, and can realize stable and reliable transmission of optical fibers and digital signals underwater. The signal transmission device has the characteristics of stable signal, high mechanical strength and reliable transmission.
Description
Technical Field
The invention belongs to the technical field of watertight cables, and particularly relates to a composite longitudinal watertight cable for ships, which is suitable for matching installation of ship equipment and is mainly used for equipment electrical transmission, signal transmission and the like.
Background
The watertight cable is an essential key component for various ships, underwater parts of platforms, sonars and other equipment, is mainly applied to communication engineering of underwater device equipment and detection systems, is a main key component for connecting an in-ship transmitter and an out-ship antenna, and is intact and directly related to the safety, reliability and advancement of ship facilities. The electric transmission of the underwater device under the normal condition and the reliability of signal conversion are ensured, and the safe operation of equipment such as the underwater device under the accident condition is ensured, so that higher requirements are provided for the performance of the watertight cable: the cable should have excellent electrical performance and reliable watertight performance, and also have the characteristics of good seawater corrosion resistance, ageing resistance, high mechanical strength and the like. The development of the composite watertight cable solves the problems of electric transmission and signal transmission with watertight requirements, and meets the requirement of communication system for deepwater communication.
How to design a longitudinal watertight cable which meets the use requirements of underwater equipment and can meet the requirements of seawater corrosion resistance, high and low temperature resistance, bending flexibility resistance and high mechanical strength in the use environment becomes a problem which is urgently needed to be solved at present.
Disclosure of Invention
To the problem, the utility model discloses a naval vessel is with compound vertical watertight cable, this cable can adapt to the supporting installation of marine equipment, can realize optic fibre, digital signal reliable and stable transmission under water. The device is mainly used for electrical transmission, signal conversion and the like of equipment, and has the characteristics of stable signals, high mechanical strength and reliable transmission.
A composite longitudinal watertight cable for ships comprises a cable core, wherein a first water-blocking tape, an inner sheath, an armor layer, a second water-blocking tape and an outer sheath are sequentially coated outside the cable core;
the cable core comprises an optical unit, at least one pair-twisted shielding unit and a plurality of insulating wire core shielding units;
the pair-twisted shielding units are symmetrically distributed around the center of the cable, and one insulating wire core shielding unit is positioned at the center of the cable;
the optical unit comprises a reinforcing piece located at the center, a plurality of optical fiber units are arranged around the reinforcing piece, each optical fiber unit comprises a bare optical fiber and a tight cladding layer coated outside the bare optical fiber, a water blocking material is filled between every two adjacent optical fiber units, and a sheath is coated on the outer surface of each optical unit.
Preferably, the insulation core shielding unit comprises a core part formed by twisting tinned copper conductors, wherein sealant is filled in the core part, an insulation layer is coated outside the core part, an isolation belt wrapping is arranged outside the insulation layer, and a tinned copper wire is woven around the isolation belt wrapping.
Preferably, the pair-twisted shielding unit comprises two wire cores formed by tinned copper conductors, wherein the surfaces of the tinned copper conductors are coated with water-blocking adhesive materials, and insulating layers are arranged outside the tinned copper conductors.
Preferably, the two wire cores are twisted in pairs and then wrapped with aluminum-plastic composite tapes and woven with tinned copper wires.
Preferably, the optical unit, the insulating wire core shielding unit and the pair-twisting shielding unit are twisted into a cable in the S/Z direction, and a sealant material is filled in the gap of the cable core.
Preferably, the inner sheath is made of a pressure-type extruded cross-linked polyolefin sheath material or a pressure-type extruded polyurethane sheath material.
Preferably, the armor layer is woven by galvanized steel wires and filled with sealant water-blocking materials.
The utility model has the advantages that:
1. a plurality of optical fiber units form an optical unit, so that sufficient optical power transmission is ensured, more optical power can be coupled from a light source, and the transmission loss of the optical fiber is reduced.
2. The conductor comprises tin-plated copper conductor, and the sealed glue of packing in conductor surface or the conductor transposition process adopts the tin-plated conductor can effectively improve conductor oxidation resistance, improves the life of cable. The conductor is filled with the sealant, so that longitudinal water blocking of the conductor in the first step can be realized.
3. The insulation adopts double-layer co-extrusion pressure type extrusion, and meanwhile, the inner layer irradiation crosslinking polyethylene insulation material and the outer layer irradiation crosslinking low-smoke halogen-free flame retardant polyolefin outer insulation material are extruded to form an insulation layer, so that the insulation wire core has excellent flame retardance while the electrical performance is ensured.
4. The pair twist unit adopts the compound area of aluminium-plastic to indulge the package and weave the tinned copper wire shielding layer, can effectively reduce the signal interference of pair twist unit around the compound area of cladding aluminium-plastic, adopts the tinned copper wire to weave the shielding and improves the anti external disturbance ability of shielding unit, has guaranteed signal transmission's stability, and the cable adopts the tinned copper wire to weave the bending property that also improves the cable simultaneously.
5. The gap between the pair-twisting unit and the cable core cabling is filled with the sealant, the sealing material is suitable for the operating temperature of the cable and is compatible with the cable insulating material, the water blocking tape can achieve a good water blocking effect when the cable meets water, the sealant filling gap is tightly filled, and the water blocking tape is tightly attached to the surface of the cable core to achieve the longitudinal water blocking performance of the cable.
6. The armor is woven to the zinc-plated steel wire outside the inner sheath and forms the enhancement layer, can effectively improve cable and cable's mechanical tensile strength, improves life.
7. The inner sheath and the outer sheath are made of cross-linked polyolefin sheath materials (or TPU), and the materials have good low-smoke halogen-free flame retardant property, are non-toxic, and have good corrosion resistance, wear resistance and ageing resistance. The inner sheath, the steel wire woven armor layer and the outer sheath are tightly attached organically and uniformly, and the longitudinal water-blocking effect of the cable is realized to the greatest extent.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a light unit configuration;
in the figure: 1-optical unit, 2-pair-twisted shielding unit, 3-insulated wire core shielding unit, 4-water-blocking tape, 5-inner sheath, 6-armor layer, 7-outer sheath, 11-close-packed layer, 12-bare fiber, 13-reinforcing piece, 14-water-blocking material and 15-sheath.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it should be understood that the terms "inside", "outside", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The utility model discloses a compound vertical watertight cable is used to naval vessel as shown in fig. 1-2, optical unit 1, insulation core shielding unit 3, pair twist shielding unit 2 is according to S/Z to transposition stranding, cable core clearance is filled and is sealed after the sealing material around wrapping waterproofing tape 4, sealing material should be fit for the operating temperature of cable and compatible with cable insulation material, waterproofing tape is around the package can realize playing fine effect of blocking water when the cable meets water, sealed packing combines with the waterproofing tape organically, with the vertical water blocking performance who reaches the cable.
The cable comprises an inner sheath 5 which is formed by extruding cross-linked polyolefin sheath material (or TPU) outside a cable core of a wrapping water-blocking tape and serves as a cable, an outer sheath 7 which is formed by extruding cross-linked polyolefin sheath material (or TPU) outside the cable core of the wrapping water-blocking tape and serves as a cable, and meanwhile, zinc-coated steel wires with mechanical strength are woven between the inner sheath and the outer sheath to form an armor layer 6, the inner sheath and the outer sheath are produced by adopting an extrusion mode, so that the tight laminating between the inner sheath and the outer sheath can be realized, and the tensile strength of the cable can be effectively improved.
The optical fiber unit adopts 62.5/125 multimode optical fibers, and a plurality of optical fibers (6 samples are selected) form one unit, so that enough optical power transmission is ensured, more optical power can be coupled from a light source, and the transmission loss of the optical fibers is reduced. The optical fiber comprises an inner bare fiber 12, a tight cladding layer 11 is coated outside the bare fiber, a reinforcing member 13 is arranged at the center of an optical fiber unit, a water blocking material 14 is directly arranged on an adjacent optical fiber, and a sheath 15 is coated outside all the optical fiber units together. The light unit can adapt to extreme environments such as high water pressure resistance, lateral pressure resistance and the like, and the longitudinal water pressure reaches 7 MPa.
The conductor of the insulated wire core shielding unit 3 adopts a first solid or second twisted tin-plated copper conductor, and the conductor monofilament adopts a tin-plated copper monofilament, so that the conductor can be effectively prevented from being oxidized, and the service life of the cable is prolonged. The twisted conductor and the single-core conductor are coated with sealant materials which can be tightly combined to form a water-blocking effect. The power cord insulated wire core is woven the tinned copper wire shielding layer, adopts the tinned copper wire to weave the shielding and effectively prevents the conductor oxidation, improves the life of cable. The conductor is externally extruded with an inner layer irradiation crosslinking polyethylene insulating material and an outer layer irradiation crosslinking low-smoke halogen-free flame retardant polyolefin outer insulating material by double-layer co-extrusion, so that an insulating layer is formed, and the insulating wire core has good flame retardancy while the electrical performance is ensured. And a high-resistance polyester tape film is arranged outside the insulated wire core to serve as an isolation tape, so that the moisture resistance of the cable can be effectively improved.
The pair-twisting shielding unit 2 is longitudinally wrapped by the aluminum-plastic composite belt and weaves the tinned copper wire shielding layer, the signal interference of the pair-twisting unit can be effectively reduced by wrapping the aluminum-plastic composite belt, the tinned copper wire is adopted to weave shielding, the external interference resistance of the shielding unit is improved, meanwhile, conductor oxidation is prevented, and the service life of the shielding layer is prolonged. And the pair-twisting unit insulated wire cores are twisted in a left-hand pair mode and filled with sealant so as to achieve the effect of longitudinally resisting water of the pair-twisting units.
The production and manufacturing process of the watertight cable comprises the following steps:
1. conductor
The tin-plated copper conductor is formed by combining a 1 st type single solid tin-plated copper conductor or a 2 nd type tin-plated soft copper conductor, the tin-plated copper conductor effectively prevents the oxidation of a wire, and the service life is prolonged. And filling sealant on the surface of the conductor or in the conductor stranding process.
2. Insulation
The power line and the pair twist unit are insulated by an inner layer irradiation crosslinking polyethylene insulating material and an outer layer irradiation crosslinking low-smoke halogen-free flame retardant polyolefin outer insulating material, and are extruded on the conductor in a double-layer co-extrusion mode to form an insulating wire core.
3. Wrapping bag
The surface of the power line insulated wire core is uniformly wrapped with a layer of isolation belt, and the wrapping and covering rate is 15% -20%.
4. Pair twisting
And the pair-twisting unit insulated wire cores are twisted in a pair mode in the left direction, and sealant is filled in the pair-twisting unit insulated wire cores, so that the longitudinal water blocking effect of the pair-twisting unit is achieved. And (3) uniformly lapping a layer of aluminum-plastic composite tape in a paired mode, wherein the lapping and covering rate is 15% -20%.
5. Shielding layer
And the pair twisting unit and the insulating wire core are braided by tinned copper wires, the braiding density is more than or equal to 80%, and the braiding layer is filled with a sealing rubber material so as to realize the longitudinal water-blocking effect of the braiding layer and the whole cable core.
6. Cabling method
The optical unit, the insulating wire core shielding unit and the pair-twisting shielding unit are twisted into a cable in the S/Z direction, the cable core gap is filled with sealant material and then wrapped with the water blocking tape, the sealing material is suitable for the running temperature of the cable and compatible with the cable insulating material, the water blocking tape can achieve a good water blocking effect when the cable meets water, the sealant is tightly filled and filled, and the water blocking tape is tightly attached to the surface of the cable core to achieve the longitudinal water blocking performance of the cable.
7. Inner sheath
The inner sheath is produced by adopting pressure type extrusion, a crosslinked polyolefin sheath material (or TPU) is extruded outside the cable core wrapped with the water blocking tape to be used as the inner sheath of the cable, and the inner sheath is tightly attached to the water blocking layer.
8. Braided armor
Galvanized steel wires are adopted to weave armoring, the weaving density is more than or equal to 60%, the woven armoring layer is filled with sealant and wrapped with a layer of water-blocking tape, and the wrapping coverage rate of the water-blocking tape is 15% -20%.
9. Outer sheath
The outer sheath is produced by adopting pressure type extrusion, a crosslinked polyolefin sheath material (or TPU) is extruded and wrapped behind the weaving layer to serve as the outer sheath of the cable, the inner sheath, the weaving armor layer and the outer sheath are tightly attached to be organically unified, and the longitudinal water blocking effect of the cable is achieved to the maximum extent.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these 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 application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A composite longitudinal watertight cable for ships is characterized by comprising a cable core, wherein a first water-blocking tape, an inner sheath, an armor layer, a second water-blocking tape and an outer sheath are sequentially coated outside the cable core;
the cable core comprises an optical unit, at least one pair-twisted shielding unit and a plurality of insulating wire core shielding units;
the pair-twisted shielding units are symmetrically distributed around the center of the cable, and one insulating wire core shielding unit is positioned at the center of the cable;
the optical unit comprises a reinforcing piece located at the center, a plurality of optical fiber units are arranged around the reinforcing piece, each optical fiber unit comprises a bare optical fiber and a tight cladding layer coated outside the bare optical fiber, a water blocking material is filled between every two adjacent optical fiber units, and a sheath is coated on the outer surface of each optical unit.
2. The composite longitudinal watertight cable for the ship according to claim 1, wherein the insulation core shielding unit comprises a core part formed by twisting tinned copper conductors, the core part is filled with sealant, an insulation layer is coated outside the core part, an isolation belt wrapping is arranged outside the insulation layer, and tinned copper wires are braided around the isolation belt wrapping.
3. The composite longitudinal watertight cable for the ship according to claim 1, wherein the twisted pair shielding unit comprises two cores made of tin-plated copper conductors, the surfaces of the tin-plated copper conductors are coated with a water-blocking adhesive material, and an insulating layer is arranged outside the tin-plated copper conductors.
4. The composite longitudinal watertight cable for the ship and warship of claim 3, wherein the two wire cores are twisted in pairs and then wrapped with an aluminum-plastic composite tape and woven with a tinned copper wire.
5. The composite longitudinal watertight cable for the ship of claim 1, wherein the optical units, the insulation wire core shielding units and the pair-twisted shielding units are twisted into a cable in an S/Z direction, and a sealant material is filled in gaps of the cable core.
6. The composite longitudinal watertight cable for the ship according to claim 1, wherein the inner sheath is made of a pressure-type extruded cross-linked polyolefin sheath material or a pressure-type extruded polyurethane sheath material.
7. The composite longitudinal watertight cable for ships and warships according to claim 1, wherein the armor layer is woven from galvanized steel wires and filled with sealant water-blocking material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023149646.6U CN213781660U (en) | 2020-12-24 | 2020-12-24 | Compound longitudinal watertight cable for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023149646.6U CN213781660U (en) | 2020-12-24 | 2020-12-24 | Compound longitudinal watertight cable for ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213781660U true CN213781660U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023149646.6U Active CN213781660U (en) | 2020-12-24 | 2020-12-24 | Compound longitudinal watertight cable for ships |
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| Country | Link |
|---|---|
| CN (1) | CN213781660U (en) |
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- 2020-12-24 CN CN202023149646.6U patent/CN213781660U/en active Active
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