CN214753063U - Compound towing cable for underwater photoelectric transmission system - Google Patents
Compound towing cable for underwater photoelectric transmission system Download PDFInfo
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- CN214753063U CN214753063U CN202121505498.9U CN202121505498U CN214753063U CN 214753063 U CN214753063 U CN 214753063U CN 202121505498 U CN202121505498 U CN 202121505498U CN 214753063 U CN214753063 U CN 214753063U
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Abstract
The utility model discloses a photoelectric transmission system uses compound tow-cable under water, its characterized in that: the cable comprises a cable core, a belting layer, a first shielding layer, an inner sheath, an armor layer and an outer sheath which are sequentially arranged from inside to outside; the cable core comprises a signal wire core and a plurality of power wires and optical units which are uniformly distributed outside the signal wire core; and water-blocking glue is filled in gaps among the power line, the optical unit, the signal wire core and the belting layer. The utility model discloses when satisfying that required having corresponding electrical property and the mechanical properties index requirement of bus cable, can bear certain breaking force, convolute repeatedly and pull and sea water pressure to satisfy multiple physical environment performance requirements such as long-term operational environment's resistant humidity, resistant environmental stress, resistant high and low temperature, both can satisfy pull underwater detection system device, can carry out daily monitoring control again.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a photoelectric transmission system is with compound tow-cable under water.
Background
With the further improvement of the requirement of ocean exploration, the requirement of a sonar system with high water depth and high reliability on various matched cable assemblies is higher and higher. For the cable used by the underwater transmission system device, not only optical fiber communication needs to be satisfied, but also power needs to be supplied to communication equipment. When the ship or the underwater robot works at a large depth, the water tightness requirement on the cable assembly is higher. The sonar system is generally applied to the surface of an underwater device, and various cable assemblies are also arranged in the sonar system or in the electrical connection with equipment in a cabin, and are generally in direct contact with seawater and bear high water pressure. Once the cable is broken, the seawater under high pressure will enter the underwater device along the gaps of the cable structure, resulting in greater failure or loss of the underwater device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point and provide a compound tow-cable for photoelectric transmission system under water, when satisfying that bus cable requires have corresponding electrical property and mechanical properties index requirement, can bear certain breaking force, convolute repeatedly and pull and sea water pressure to satisfy multiple physical environment performance requirements such as long-term operational environment's moisture resistance, environmental stress resistance, resistant high and low temperature, both can satisfy pull underwater detection system device, can carry out daily monitoring control again.
Realize the utility model discloses purpose technical scheme is:
the utility model provides a compound tow-cable for underwater optical-electric transmission system which characterized in that: the cable comprises a cable core, a belting layer, a first shielding layer, an inner sheath, an armor layer and an outer sheath which are sequentially arranged from inside to outside; the cable core comprises a signal wire core and a plurality of power wires and optical units which are uniformly distributed outside the signal wire core; and water-blocking glue is filled in gaps among the power line, the optical unit, the signal wire core and the belting layer.
Furthermore, the armor layer comprises a tensile layer formed by three layers of twisted aramid fiber armor and a fastening protective layer formed by twisted aramid fiber weaving, which are sequentially arranged from inside to outside, so that the tensile property of the cable is improved, and the cable can bear the tensile force of at least 120 kN.
Furthermore, the signal wire core comprises at least one pair of twisted signal wires, a second shielding layer wraps the twisted signal wires, and filling strips are arranged in gaps between the twisted signal wires and the second shielding layer, so that the roundness of the twisted signal wires is kept.
Furthermore, the twisted-pair signal wire comprises two signal wires, each signal wire comprises a conductor composed of multiple strands or a single silver-plated copper wire, an insulator wraps the conductor, and the sectional area of the conductor is not more than 1mm2。
Furthermore, the insulator is made of blending modified fluoroplastic FEP material, and has excellent volume resistivity, and a small amount of barium sulfate powder and epoxy resin powder are added into the blending modified fluoroplastic FEP material, so that the cohesiveness of the insulating material and the conductor material is improved, the insulating material and the conductor material are tightly bonded, and the water tightness requirement is met.
Furthermore, the second shielding layer comprises an aluminum-plastic composite belt and a tinned copper wire braided shield which are sequentially arranged from inside to outside and is used for shielding an electric field and leaking induction voltage; when the twisted-pair signal wires are used for transmitting data bus signals, the second shielding layer can effectively isolate electromagnetic interference and crosstalk between each pair of twisted-pair signal wires and the outside; when the twisted-pair signal wire is used for emergency transmission of a high-voltage power supply, the second shielding layer can be used as a drainage wire to drain induced voltage.
Furthermore, the pitch ratio of the twisted-pair signal wires is 12-14, when the twisted-pair signal wires are in multiple pairs, the pitch ratio of each pair of twisted-pair signal wires is different, so that the difference of the electrical lengths is reduced, the capacitance difference of each pair of twisted-pair signal wires is not more than 1%, and the error rate of product communication transmission is reduced.
Furthermore, the gap between the power line and the light unit and the belting layer is filled with a bearing unit, the bearing unit adopts a tinned copper wire, the underwater use requirement is met, and meanwhile, the tensile property is improved.
Furthermore, the optical unit adopts a single-mode stainless steel tube four-core optical fiber, the outer diameter is not more than 1.6mm, the attenuation is 1550 dB/km or less than or equal to 0.3dB/km, and 1310 dB/km or less than or equal to 0.4 dB/km; the single-mode stainless steel tube four-core optical fiber is externally wrapped with insulation made of low-density polyethylene materials, and smooth signals of the optical unit under water are guaranteed.
Furthermore, the first shielding layer adopts a tinned copper wire braid layer, so that when the cable transmits a high-voltage power supply, induced current can be transmitted and guided through the first shielding layer, and the induced voltage of the cable is reduced.
Furthermore, the inner sheath and the outer sheath are made of high-strength black polyether polyurethane materials, so that the cable has a certain impact resistance, is resistant to environmental stress cracking and biting of rats and insects, can bear a certain mechanical impact stress, and improves the reliability of the cable in long-term use.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
(1) the utility model discloses a set up the signal sinle silk, power cord and optical unit, satisfy photoelectric transmission's the daily monitoring control of photoelectric transmission system cable under water, glue through filling and hinder water, satisfy the water proofness requirement when increasing cable weight, through setting up inside and outside sheath and armor, satisfy multiple physical environmental performance requirements such as the required moisture resistance of cable long-term operational environment under water, withstand voltage, environmental stress, resistant high and low temperature, can bear certain breaking force, the coiling pulls and sea water pressure repeatedly, the realization is dragged the function of surveying the system device under the ocean normal water.
(2) The utility model discloses an armor includes the tensile layer that is formed by the armor of three-layer twisting aramid fiber and weaves the fastening protective layer that forms by twisting aramid fiber that from interior to exterior set gradually, improves cable tensile strength, makes the cable can bear the pulling force up to 120kN, fully provided drags the demand of underwater detection system device in the ocean.
(3) The utility model discloses the signal sinle silk adopts the pair twist signal line to it has the packing to locate to fill in the clearance, thereby the circularity when keeping the signal line pair twist.
(4) The utility model discloses the conductor of pair twist signal line is stranded or single silver-plated copper wire, satisfies different design demands, and the outer parcel of conductor has the fluoroplastics FEP material that adopts the blending to modify to make, has excellent volume resistivity, improves insulating material and conductor material's cohesiveness, makes closely binding of insulating material and conductor material, satisfies the water proofness requirement.
(5) The second shielding layer of the utility model comprises an aluminum-plastic composite belt and a tinned copper wire braided shield which are arranged from inside to outside in sequence and are used for shielding an electric field and leaking induction voltage; when the twisted-pair signal wires are used for transmitting data bus signals, the second shielding layer can effectively isolate electromagnetic interference and crosstalk between each pair of twisted-pair signal wires and the outside; when the twisted-pair signal wire is used for emergency transmission of a high-voltage power supply, the second shielding layer can be used as a drainage wire to drain induced voltage.
(6) The utility model discloses the pitch ratio of pair twist signal line is between 12 ~ 14, and when pair twist signal line has many pairs of time, the pitch ratio of each pair twist signal line is all different to reduce the difference of electric length, make the electric capacity difference value of each pair twist signal line be not more than 1%, reduced the error rate of product communication transmission.
(7) The utility model discloses the clearance of power cord and light unit and band layer has still filled the tinned copper wire, as the weight increase unit of cable, satisfies the operation requirement under water, improves tensile properties simultaneously.
(8) The utility model discloses first shielding layer is with tinned copper wire weaving layer, makes the cable when transmitting high voltage power supply, and the induced-current is guided in the transmission of the first shielding layer of accessible, reduces the induced voltage of cable.
(9) The utility model discloses inner sheath and oversheath all adopt high strength black polyether type polyurethane material, make the cable have certain impact resistance type to resistant environment should ftracture, resistant mouse worm gnaws and stings, can make the cable can bear certain mechanical impact stress again, improves the reliability that the cable used for a long time.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the drawings are:
the cable comprises a signal wire core 1, a signal wire 11, a conductor 111, an insulator 112, a second shielding layer 12, a filling strip 13, a power wire 2, an optical unit 3, a belting layer 4, a first shielding layer 5, an inner sheath 6, an armor layer 7, a tensile layer 71, a fastening protective layer 72, an outer sheath 8 and a bearing unit 9.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
(example 1)
The composite towline for the underwater photoelectric transmission system shown in fig. 1 comprises a cable core, wherein the cable core comprises a signal wire core 1 and a plurality of power lines 2 and optical units 3 which are uniformly distributed outside the signal wire core, the power lines 2 are provided with two in the embodiment, and the optical units 3 are provided with six. The outer part of the cable core is sequentially provided with a belting layer 4, a first shielding layer 5, an inner sheath 6, an armor layer 7 and an outer sheath 8 from inside to outside. The gaps among the power line 2, the optical unit 3, the signal wire core 1 and the belting layer 4 are filled with water-blocking glue. This embodiment is through setting up signal core 1, power cord 2 and optical unit 3, satisfy photoelectric transmission's the daily monitoring control of photoelectric transmission system cable under water, glue through filling water-blocking, satisfy the water tightness requirement when increasing cable weight, through setting up inside and outside sheath and armor 7, satisfy the required moisture resistance gas of cable long-term operational environment under water, it is withstand voltage, environmental stress resistance, multiple physical environmental performance requirements such as high low temperature resistant, can bear certain breaking force, the coiling is repeatedly dragged and sea water pressure, realize dragging the function of marine underwater exploration system device.
Specifically, the signal wire core 1 comprises at least one pair of twisted-pair signal wires, the pitch ratio of the twisted-pair signal wires is 12-14, when the twisted-pair signal wires are in multiple pairs, the pitch ratio of each pair of twisted-pair signal wires is different, so that the difference of the electrical length is reduced, the difference of the capacitance of each pair of twisted-pair signal wires is not more than 1%, and the error rate of product communication transmission is reduced. The embodiment is provided with a pair of twisted-pair signal wires, each twisted-pair signal wire comprises two signal wires 11, and a second shielding layer 12 wraps the twisted-pair signal wires. The signal line 11 includes a conductor 111 composed of a plurality of strands of silver-plated copper wires, the sectional area of the conductor 111 being not more than 1mm2The conductor 111 of this embodiment is made of 19 silver-plated copper wires, and the cross-sectional area is 0.59mm2. The conductor 111 is wrapped by the insulator 112 made of blending modified fluoroplastic FEP material, the volume resistivity is excellent, a small amount of barium sulfate powder and epoxy resin powder are added in the insulator 112 material, the cohesiveness of the insulating material and the conductor material is improved, the insulating material and the conductor material are tightly bonded, and the water tightness requirement is met.
The second shielding layer 12 comprises an aluminum-plastic composite belt and a tinned copper wire braided shield which are arranged from inside to outside in sequence and used for shielding an electric field and leaking induction voltage; when the twisted-pair signal wires are used for transmitting data bus signals, the second shielding layer 12 can effectively isolate electromagnetic interference and crosstalk between the twisted-pair signal wires and outside; when the twisted-pair signal line is used for emergency transmission of a high-voltage power supply, the second shielding layer 12 can be used as a drain line to drain the induced voltage. And a filling strip 13 is arranged in the gap between the twisted signal wire and the second shielding layer 12, so that the roundness of the twisted signal wire during twisting is kept.
The optical unit 3 adopts a 1.6D single-mode stainless steel pipe 8.7/125/250(ITU-TG657A2, four-core optical fiber), the attenuation meets 1550-0.3 dB/km or less, and 1310-0.4 dB/km or less. The single-mode stainless steel tube four-core optical fiber is externally wrapped with insulation made of low-density polyethylene material, and the resistivity is more than 1016Omega cm, the smooth signal of the light unit 3 is ensured when the light unit is underwater. The gap between the power supply line 2 and the light unit 3 and the wrapping layer 4 is alsoThe bearing unit 9 made of tinned copper wires is filled in the filling box, so that the underwater use requirement is met, and meanwhile, the tensile property is improved.
The belting layer 4 adopts a copper-plastic composite belt, and the copper surface faces outwards when the cable core is cabled and wrapped.
The armor layer 7 comprises a tensile layer 71 formed by three layers of twisted aramid fiber armor and a fastening protective layer 72 formed by weaving twisted aramid fibers, which are sequentially arranged from inside to outside, so that the tensile property of the cable is improved, and the cable can bear 120kN of pulling force. The first layer of armor adopts 3 multiplied by 1670dtex, and 36 strands are used, and the armor direction is right; the second layer of armor adopts 7 multiplied by 1670dtex, and 30 strands in total, and the armor direction is right; the third layer of armor adopts 7 x 1670dtex, totally 36 strands, and the armor direction is left, and the pitch ratio of twisting aramid fiber armor is between 18-20 times.
The inner sheath 6 and the outer sheath 8 are both made of high-strength black polyether polyurethane, so that the cable has a certain impact resistance, and is resistant to environmental stress cracking and biting of rats and insects, and can bear a certain mechanical impact stress, and the reliability of the cable in long-term use is improved.
The composite towing cable for the underwater photoelectric transmission system can reliably monitor and manage the whole underwater detection equipment when the underwater cable works normally; when the local underwater detection is failed, the fault point can be immediately determined through a bus structure in a topological form, the temporary power supply of the cable is solved, 24 optical fibers can effectively enable the cable to continue to play a role, the water-blocking glue is filled, the water-tightness requirement is met while the weight of the cable is increased, the requirements of various physical environment performances such as moisture resistance, pressure resistance, environmental stress resistance, high and low temperature resistance and the like required by the long-term working environment of the underwater cable are met by arranging the inner sheath, the outer sheath and the armor layer 7, certain breaking force can be borne, the underwater detection dragging and seawater pressure can be repeatedly wound, and the underwater detection dragging safety is guaranteed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a compound tow-cable for underwater optical-electric transmission system which characterized in that: the cable comprises a cable core, a belting layer (4), a first shielding layer (5), an inner sheath (6), an armor layer (7) and an outer sheath (8) which are sequentially arranged from inside to outside; the cable core comprises a signal wire core (1) and a plurality of power wires (2) and optical units (3) which are uniformly distributed outside the signal wire core (1); and water-blocking glue is filled in gaps among the power line (2), the optical unit (3), the signal wire core (1) and the wrapping tape layer (4).
2. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 1, wherein: the armor layer (7) comprises a tensile layer (71) formed by armor of three layers of twisted aramid fibers and a fastening protective layer (72) formed by weaving the twisted aramid fibers, wherein the tensile layer and the fastening protective layer are sequentially arranged from inside to outside.
3. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 1, wherein: the signal sinle silk (1) includes at least a pair of pair twist signal line, the outer parcel of pair twist signal line has second shielding layer (12), the clearance between pair twist signal line and second shielding layer (12) is equipped with filler strip (13).
4. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 3, wherein: the twisted-pair signal wire comprises two signal wires (11), the signal wires (11) comprise conductors (111) formed by multiple strands or single silver-plated copper wires, and insulators (112) are wrapped outside the conductors (111).
5. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 4, wherein: the insulator (112) is made of a blend modified fluoroplastic FEP material.
6. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 3, wherein: the second shielding layer (12) comprises an aluminum-plastic composite belt and a tinned copper wire braided shield which are sequentially arranged from inside to outside.
7. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 3, wherein: the pitch ratio of the twisted-pair signal wires is 12-14, and when the twisted-pair signal wires are in multiple pairs, the pitch ratio of each pair of twisted-pair signal wires is different.
8. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 1, wherein: the gap between the power line (2) and the light unit (3) and the belting layer (4) is filled with a bearing unit (9), and the bearing unit (9) is made of tinned copper wires.
9. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 1, wherein: the first shielding layer (5) is a tinned copper wire braid.
10. The compound streamer for an underwater optical-electrical transmission system as claimed in claim 1, wherein: the inner sheath (6) and the outer sheath (8) are both made of high-strength black polyether polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121505498.9U CN214753063U (en) | 2021-07-05 | 2021-07-05 | Compound towing cable for underwater photoelectric transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121505498.9U CN214753063U (en) | 2021-07-05 | 2021-07-05 | Compound towing cable for underwater photoelectric transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753063U true CN214753063U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121505498.9U Active CN214753063U (en) | 2021-07-05 | 2021-07-05 | Compound towing cable for underwater photoelectric transmission system |
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| Country | Link |
|---|---|
| CN (1) | CN214753063U (en) |
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2021
- 2021-07-05 CN CN202121505498.9U patent/CN214753063U/en active Active
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