CN216013748U - Lead to integrative sea optical cable of survey - Google Patents
Lead to integrative sea optical cable of survey Download PDFInfo
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- CN216013748U CN216013748U CN202121453151.4U CN202121453151U CN216013748U CN 216013748 U CN216013748 U CN 216013748U CN 202121453151 U CN202121453151 U CN 202121453151U CN 216013748 U CN216013748 U CN 216013748U
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Abstract
The utility model relates to the technical field of optical fiber sensing and optical cable manufacturing, and discloses a universal measuring integrated sea optical cable which comprises a communication optical unit, wherein the communication optical unit comprises a first protective pipe, and a communication optical fiber penetrates through the first protective pipe; the first protection layer comprises a second protection pipe sleeved outside the first protection pipe, an inner armor steel wire is spirally wound outside the first protection pipe and is positioned between the first protection pipe and the second protection pipe, and the insulation pipe comprises an insulation pipe; the second protective layer comprises a plurality of outer armor steel wires spirally wound on the outer side of the insulating pipe; the anticorrosive layer is arranged on one side of the outer armor steel wire, which is far away from the insulating pipe; the monitoring optical unit comprises a third protection tube, and monitoring optical fibers penetrate through the third protection tube. One or several replacement in will outer armour steel wire through using the monitoring optical unit the same with outer armour steel wire diameter with novel, make it be used for monitoring specially, improved the sensitive degree of monitoring optic fibre to external vibration greatly.
Description
Technical Field
The utility model relates to the technical field of optical fiber sensing and optical cable manufacturing, in particular to a universal measuring integrated sea optical cable.
Background
Because the submarine optical cable is often damaged by external anchorage or fishery activity, some system maintenance units use one or more optical fibers in the submarine optical cable for monitoring external vibration, but because the optical fibers of the submarine optical cable commonly used at present are all positioned in the center of the submarine cable, the sensitivity of the submarine optical cable for sensing the external vibration is weakened while the submarine optical cable is well protected, and therefore the monitoring effect is general. The current monitoring system has no big problems in principle and is mature in land application, but because the submarine environment is relatively complex, various noises may exist, so that if the threshold value of the monitoring system is set to a lower range in order to avoid the influence of the noises, the condition of missed detection may occur, and if the threshold value is set to a higher value in order to avoid the missed detection, a large amount of false alarms may occur. If the sensitivity of the optical fiber to external vibration can be improved, the threshold value can be set more finely, and finer vibration data can be monitored. Such finer vibration data can be used for marine seismic activity monitoring, and on the other hand, the number of optical fibers in an undersea optical cable is limited, and each core is precious, so that many system maintenance units are not willing to take out special optical fibers for monitoring activities.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a universal survey integrated sea cable, which solves the problems in the prior art.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a universal-measurement integrated sea cable which comprises a communication optical unit, a first protective layer, an insulating pipe, a second protective layer and an anticorrosive layer, wherein the communication optical unit, the first protective layer, the insulating pipe, the second protective layer and the anticorrosive layer are sequentially arranged from inside to outside; a monitoring light unit is embedded in the second protective layer;
the communication optical unit comprises a first protection tube, and a communication optical fiber is fixedly penetrated in the first protection tube;
the first protection layer comprises a second protection pipe, the second protection pipe is sleeved on the outer side of the first protection pipe, a plurality of inner armor steel wires are spirally wound on the outer side of the first protection pipe in the circumferential direction, any two adjacent inner armor steel wires are in contact fit with each other, and the inner armor steel wires are located between the first protection pipe and the second protection pipe;
the second protective layer comprises a plurality of outer armor steel wires, any two outer armor steel wires are in contact fit with each other, and the outer armor steel wires are fixedly wound on the outer side of the insulating pipe in a spiral mode side by side;
the monitoring optical unit comprises a third protection tube, and monitoring optical fibers penetrate through the third protection tube.
Preferably, the first protection pipe and the third protection pipe are both stainless steel pipes, and the second protection pipe is a copper pipe.
Preferably, the anticorrosive coating comprises a polypropylene rope fixedly wound on the outer side of the outer armor steel wire, and asphalt is coated on the outer side of the polypropylene rope.
Preferably, the number of the monitoring optical fiber cores is 1-8.
Preferably, the outer diameter of the outer armor steel wire is equal to the outer diameter of the third protection pipe, and the third protection pipe is arranged in parallel with the outer armor steel wire.
Preferably, the number of the communication optical fiber cores is 12-48.
Preferably, the inner walls of the first protection tube and the third protection tube are coated with fiber paste, and the communication optical fiber is fixed inside the first protection tube through the fiber paste; the monitoring optical fiber is fixed in the third protective tube through the fiber paste.
Preferably, the insulating layer comprises a rim pipe, the insulating pipe is a polyethylene plastic pipe, and the thickness of the insulating pipe is 2.5-3 mm.
The utility model discloses the following technical effects: one or more of the outer armor steel wires are replaced by the monitoring optical unit with the same diameter as the outer armor steel wires, so that the monitoring optical unit is specially used for monitoring, the sensitivity of the monitoring optical fiber to external vibration is greatly improved, and meanwhile, the optical cable with the relatively tense number of the monitoring optical fiber cores does not need to occupy communication optical fibers to monitor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a double-armored general-survey integrated sea optical cable according to the utility model;
FIG. 2 is a schematic structural diagram of a single-armored general-survey integrated sea cable optical cable according to the present invention;
fig. 3 is a schematic structural diagram of the monitoring light unit of the present invention.
The device comprises a communication optical fiber-1, a fiber paste-2, a first protection pipe-3, an inner armor steel wire-4, a second protection pipe-5, an insulation pipe-6, an outer armor steel wire-7, a polypropylene rope-8, asphalt-9, a third protection pipe-10 and a monitoring optical fiber-11.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The utility model provides a universal-measurement integrated sea cable which comprises a communication optical unit, a first protective layer, an insulating pipe, a second protective layer and an anticorrosive layer, wherein the communication optical unit, the first protective layer, the insulating pipe, the second protective layer and the anticorrosive layer are sequentially arranged from inside to outside; a monitoring light unit is embedded in the second protective layer;
the communication optical unit comprises a first protective tube 3, and a communication optical fiber 1 is fixedly penetrated in the first protective tube 3;
the first protection layer comprises a second protection pipe 5, the second protection pipe 5 is sleeved on the outer side of the first protection pipe 3, a plurality of inner armor steel wires 4 are spirally wound on the outer side of the first protection pipe 3 in the circumferential direction, any two inner armor steel wires 4 are in contact fit, and the inner armor steel wires 4 are located between the first protection pipe 3 and the second protection pipe 5;
the second protective layer comprises a plurality of outer armor steel wires 7, any two adjacent outer armor steel wires 7 are in contact fit, and the outer armor steel wires 7 are fixedly wound on the outer side of the insulating pipe 6 in a spiral mode side by side;
the monitoring optical unit comprises a third protection tube 10, and a monitoring optical fiber 11 penetrates through the third protection tube 10.
Further, in order to provide sufficient strength to the first protection tube 3 and the third protection tube 10 so as to protect the monitoring optical fiber 11 and the communication optical fiber 1 inside, stainless steel tubes are used as the first protection tube 3 and the third protection tube 10; meanwhile, in order to ensure the insulation effect between the insulating tube 6 and the second protection tube 5, the second protection tube 5 is made of a copper tube.
Further, for guaranteeing the anticorrosive effect of anticorrosive coating, the anticorrosive coating adopts polypropylene rope 8, twines polypropylene rope 8 in the 7 outsides of outer armour steel wire, makes outer armour steel wire 7 wrapped up completely, then uses pitch 9 evenly to paint in the 8 outsides of polypropylene rope to this anticorrosive performance who guarantees the sea optical cable.
Furthermore, in order to reduce the diameter of the monitoring optical unit and ensure that the outer armor steel wire 7 can be replaced by the monitoring optical unit, the number of the cores of the monitoring optical fibers 11 in the monitoring optical unit is kept between 1 and 8.
Further, to ensure the sealing performance of the outer side of the submarine optical cable, the outer diameter of the third protection pipe 10 is equal to the outer diameter of the outer armor wire 7.
Furthermore, in order to ensure the normal operation of the communication optical unit, 12-48 cores are selected as the number of the communication optical fiber 1 cores in the communication optical unit.
Further, for avoiding sea water to get into the optical cable and influence optical fiber work, guarantee simultaneously that monitoring optical fiber 11 and communication optical fiber 1 can be fixed respectively in third protection tube 10 and first protection tube 3, first protection tube 3 and third protection tube 10 inner wall have all been paintd fine cream 2, and communication optical fiber 1 and monitoring optical fiber 11 are all fixed in first protection tube 3 and third protection tube 10 through fine cream 2.
Furthermore, in order to ensure the insulation effect of the insulation tube 6, the insulation tube 6 is made of a polyethylene plastic tube with the wall thickness of 2.5-3 mm.
Example (b): firstly, a monitoring optical unit is manufactured, a monitoring optical fiber 11 is put into a third protection pipe 10 with the diameter equal to that of the outer armor steel wire 7, and simultaneously, fiber paste 2 is injected into the third protection pipe 10. Secondly, manufacturing a sea-cable, putting the communication optical fiber 1 into the first protection pipe 3, simultaneously injecting fiber paste 2 into the first protection pipe 3, twisting the inner armor steel wire 4 outside the first protection pipe 3, then sleeving the second protection pipe 5 outside the inner armor steel wire 4, fixedly sleeving the insulating pipe 6 outside the second protection pipe 5, replacing one or more outer armor steel wires 7 by using a manufactured monitoring light unit, then parallelly twisting the outer armor steel 7 wires and the communication light unit outside the insulating pipe 6, winding the polypropylene rope 8 outside the outer armor steel 7, completely wrapping the polypropylene rope 8 with the outer armor steel 7, and finally uniformly coating asphalt 9 outside the polypropylene rope 8. In this embodiment, the inner armor wires 4 are twisted in two layers. The general-measurement integrated sea optical cable can be a single-armored sea optical cable or a double-armored sea optical cable.
According to the utility model, one or more of the outer armor steel wires 7 are replaced by the monitoring optical unit with the same diameter as the outer armor steel wires 7, so that the monitoring optical unit is specially used for monitoring, the sensitivity of the monitoring optical fiber 11 to external vibration is greatly improved, and the optical cable with relatively less monitoring optical fiber cores does not need to occupy the communication optical fiber 1 for monitoring.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. A universal-measurement integrated sea cable is characterized by comprising a communication optical unit, a first protective layer, an insulating layer, a second protective layer and an anticorrosive layer which are sequentially arranged from inside to outside; a monitoring light unit is embedded in the second protective layer;
the communication optical unit comprises a first protection tube (3), and a communication optical fiber (1) is fixedly penetrated in the first protection tube (3);
the first protection layer comprises a second protection pipe (5), the second protection pipe (5) is sleeved on the outer side of the first protection pipe (3), a plurality of inner armor steel wires (4) are circumferentially and spirally stranded on the outer side of the first protection pipe (3), any two adjacent inner armor steel wires (4) are in contact fit with each other, and the inner armor steel wires (4) are located between the first protection pipe (3) and the second protection pipe (5);
the second protective layer comprises a plurality of outer armor steel wires (7), any two outer armor steel wires (7) are in contact fit, and the outer armor steel wires (7) are fixedly wound on the outer side of the insulating pipe (6) in a spiral mode side by side;
the monitoring light unit comprises a third protection tube (10), and monitoring optical fibers (11) penetrate through the third protection tube (10).
2. A universal survey integrated sea cable according to claim 1, characterized in that: the first protection pipe (3) and the third protection pipe (10) are both stainless steel pipes, and the second protection pipe (5) is a copper pipe.
3. A universal survey integrated sea cable according to claim 1, characterized in that: the anticorrosive coating comprises a polypropylene rope (8) fixedly wound on the outer side of the outer armor steel wire (7), and asphalt (9) is coated on the outer side of the polypropylene rope (8).
4. A universal survey integrated sea cable according to claim 1, characterized in that: the number of the optical fiber cores of the monitoring optical fiber (11) is 1-8.
5. A universal survey integrated sea cable according to claim 3, characterized in that: the outer diameter of the outer armor steel wire (7) is the same as that of the third protection pipe (10), and the third protection pipe (10) is arranged in parallel with the outer armor steel wire (7).
6. A universal survey integrated sea cable according to claim 1, characterized in that: the number of the optical fiber cores of the communication optical fiber (1) is 12 to 48.
7. A universal survey integrated sea cable according to claim 1, characterized in that: the inner walls of the first protection pipe (3) and the third protection pipe (10) are coated with fiber paste (2), and the communication optical fiber (1) is fixed in the first protection pipe (3) through the fiber paste (2); the monitoring optical fiber (11) is fixed in the third protection tube (10) through the fiber paste (2).
8. A universal survey integrated sea cable according to claim 1, characterized in that: the insulating layer comprises an insulating tube (6), the insulating tube (6) is a polyethylene plastic tube, and the thickness of the insulating tube (6) is 2.5-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453151.4U CN216013748U (en) | 2021-06-29 | 2021-06-29 | Lead to integrative sea optical cable of survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453151.4U CN216013748U (en) | 2021-06-29 | 2021-06-29 | Lead to integrative sea optical cable of survey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216013748U true CN216013748U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121453151.4U Active CN216013748U (en) | 2021-06-29 | 2021-06-29 | Lead to integrative sea optical cable of survey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216013748U (en) |
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2021
- 2021-06-29 CN CN202121453151.4U patent/CN216013748U/en active Active
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