CN111681828B - Composite submarine cable - Google Patents
Composite submarine cable Download PDFInfo
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- CN111681828B CN111681828B CN202010358485.7A CN202010358485A CN111681828B CN 111681828 B CN111681828 B CN 111681828B CN 202010358485 A CN202010358485 A CN 202010358485A CN 111681828 B CN111681828 B CN 111681828B
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- cable
- sensing optical
- armor
- armor layer
- environment
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- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims abstract description 91
- 238000004891 communication Methods 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000013307 optical fiber Substances 0.000 claims description 43
- 239000004020 conductor Substances 0.000 claims description 22
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 51
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000251730 Chondrichthyes Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- H01B7/14—Submarine cables
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a composite submarine cable, which comprises a cable core body, wherein the cable core body comprises an electric unit and a communication optical unit, and is characterized in that: the composite submarine cable further comprises an environment-sensitive light unit and an armor layer twisted by armor wires, wherein the armor layer is coated outside the cable core body, and the environment-sensitive light unit is arranged in an armor gap of the armor layer; the environment sensing light unit includes at least one environment sensing optical cable. The composite submarine cable realizes point-to-point power transmission by the electric unit and point-to-point communication transmission by the communication optical unit, realizes coastal detection in a routing range and sensing of water area environment by the environment sensing optical cable, realizes multifunctional combination of communication, power and detection, realizes multiple purposes by one cable, saves multiple laying cost and equipment investment, and reduces multiple laying route conflicts in the same water area.
Description
Technical Field
The invention relates to the technical field of submarine cables, in particular to a composite submarine cable.
Background
With the continuous spanning development of ocean economy in China, the fields of various ocean communications, underwater detection and detection, the requirement on the composite transmission capability of the traditional submarine optical cable is continuously improved, the requirement on real-time online monitoring of the submarine is increasingly improved, and the composite submarine optical cable which meets more functions is developed, so that the construction cost of various detection and communication platforms can be greatly reduced, the construction of submarine online observation networks in China can be promoted, and the utilization and protection capability of ocean resources in China can be improved.
At present, two major types of widely applied submarine cables are provided, one type is a traditional submarine optical cable, long-distance high-capacity communication transmission is realized, and along with the increase of distance, the integration of an electric power unit is carried out, so that the power supply requirement of the system is met; the cable is mainly applied to power supply and communication of underwater equipment, offshore wind power and island power supply communication, and realizes the power and communication transmission function. The two types of submarine optical cables are only used for achieving a communication or power supply target, completing integration of electric power and communication functions, realizing point-to-point electric power and communication transmission, having insufficient on-line sensing and early warning capabilities on marine environments of the whole laying area, being incapable of bearing detection of real-time surrounding environments and transmission of sensing data, and having no surrounding marine environments and dynamic sensing capability.
Disclosure of Invention
The invention aims to provide a composite submarine cable, which can realize ocean detection and water area environment perception in a circuit routing range while transmitting electric power and communication, realize multifunctional combination of communication, electric power and detection and reduce one-time equipment investment.
In order to solve the technical problem, the invention provides a composite submarine cable which comprises a cable core body, wherein the cable core body comprises an electric unit and a communication optical unit, the composite submarine cable also comprises an environment sensing optical unit and an armor layer twisted by armor wires, the armor layer is covered outside the cable core body, and the environment sensing optical unit is arranged in an armor gap of the armor layer; the environment sensing light unit includes at least one environment sensing optical cable.
In a preferred embodiment of the invention, the armor layer further comprises an inner armor layer and an outer armor layer, the inner armor layer is coated outside the cable core body, and the outer armor layer is coated outside the inner armor layer; at least one environment sensing optical cable is arranged in the armor gap of the inner armor layer, and at least one environment sensing optical cable is arranged in the armor gap of the outer armor layer.
In a preferred embodiment of the present invention, the environment sensing optical cable further comprises a pressure sensing optical cable, a temperature sensing optical cable, a vibration sensing optical cable and a water wave sensing optical cable.
In a preferred embodiment of the present invention, the pressure sensing optical cable further includes one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber, and a water wave sensing optical fiber; the temperature sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber; the water wave sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber.
In a preferred embodiment of the present invention, the vibration sensing optical cable further comprises a sleeve and a vibration sensing optical fiber disposed within the sleeve, the vibration sensing optical fiber within the sleeve having a vibration gap therebetween.
In a preferred embodiment of the present invention, the composite submarine cable further comprises an outer conductor disposed in an armor gap of the armor layer; the outer conductor and the inner conductor constituting the electric unit realize bipolar power transmission.
In a preferred embodiment of the present invention, the armouring wire further comprises a body and a buffer lining, and the buffer lining covers the outside of the body.
In a preferred embodiment of the present invention, the armor wires further include a zinc-aluminum alloy coating layer disposed on the body of the armor wires.
In a preferred embodiment of the present invention, the composite submarine cable further includes a sheath layer, and the sheath layer is wrapped outside the outer armor layer.
In a preferred embodiment of the present invention, the optical communication unit further includes an optical communication cable, an inner conductor constituting the electrical unit is covered outside the optical communication cable, an insulating layer is covered outside the inner conductor, and the armor layer is covered outside the insulating layer.
The invention has the beneficial effects that:
the composite submarine cable realizes point-to-point power transmission by the electric unit and point-to-point communication transmission by the communication optical unit, realizes coastal detection in a routing range and sensing of water area environment by the environment sensing optical cable, realizes multifunctional combination of communication, power and detection, realizes multiple purposes by one cable, saves multiple laying cost and equipment investment, and reduces multiple laying route conflicts in the same water area.
Drawings
FIG. 1 is a schematic structural view of a composite sea cable according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a vibration sensing optical cable according to a preferred embodiment of the present invention.
The reference numbers in the figures illustrate:
2-inner armor layer, 4-outer armor layer, 6-vibration sensing optical cable, 8-pressure sensing optical cable, 10-vibration sensing optical fiber, 12-vibration gap, 14-outer conductor, 16-inner conductor, 18-armor wire, 20-sheathing layer, 22-communication optical cable, 24-insulating layer and 26-communication optical fiber.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Examples
The embodiment discloses a composite submarine cable, and as shown in fig. 1, the composite submarine cable comprises a cable core body, the cable core body comprises an electric unit and a communication optical unit, and the composite submarine cable transmits electric power point to point through the electric unit and realizes point to point communication transmission through the communication optical unit. Specifically, the communication optical unit includes a communication cable 22, the communication cable 22 includes a communication fiber 26 wrapped by a sleeve, and the communication fiber 26 realizes point-to-point communication transmission. The inner conductor 16 constituting the electric unit is covered outside the communication optical cable 22, the insulating layer 24 is covered outside the inner conductor 16, and the communication optical cable 22, the inner conductor 16 and the insulating layer 24, which are arranged from the outside, constitute a cable core body of the composite submarine cable.
As an improvement of the invention, the composite submarine cable further comprises an environment-sensitive light unit and an armor layer twisted by armor wires 18, wherein the armor layer is coated outside the cable core body, and the environment-sensitive light unit is arranged in an armor gap of the armor layer; the environment sensing optical unit includes at least one environment sensing optical cable. The composite submarine cable detects the coast in the routing range and senses the water environment through the environment sensing optical cable. In this embodiment, the environment sensing optical cable includes a pressure sensing optical cable, a temperature sensing optical cable, a vibration sensing optical cable and a water wave sensing optical cable, wherein the pressure sensing optical cable can sense and transmit ocean current pressure data of the water area environment, the temperature sensing optical cable can sense and transmit ocean current temperature data of the water area environment, the water wave sensing optical cable can sense and transmit water temperature data of the water area environment, the vibration sensing optical cable senses and transmits vibration data of the water area environment, and the states of the ocean current sensing optical cable, the volcano and the water current scouring submarine cable are included. Real-time sensing of water patterns, ocean current temperature, pressure and vibration including the water area environment is achieved. The armor layer is used for reinforcing and protecting the cable core body, prevents injuries caused by trawling, anchoring, shark and the like of a fishing boat, and ensures the tensile and compressive properties of the composite submarine cable. Above-mentioned environment sensing optical cable sets up in the armor clearance of armor, when obtaining the armor protection, direct contact waters environment does benefit to the sensitivity and the degree of accuracy that improve the environment sensing.
Further, the armor layer comprises an inner armor layer 2 and an outer armor layer 4, the inner armor layer 2 covers the outer side of the cable core body, and the outer armor layer 4 covers the outer side of the inner armor layer 2; at least one environment sensing optical cable is arranged in the armor gap of the inner armor layer 2, and at least one environment sensing optical cable is arranged in the armor gap of the outer armor layer 4. The inner and outer double armoring layers are arranged, so that the protective strength of the armor layer can be influenced after the environment sensing optical cable is arranged in the armoring gap, and the problem of reduction of the protective strength caused by the arrangement of the environment sensing optical cable in the armoring gap is solved by arranging the inner and outer double armoring layers, so that the composite submarine cable has environment sensing capability and is not influenced in protective strength.
A pressure sensing optical cable, a temperature sensing optical cable and a water wave sensing optical cable are designed in the armor gap of the inner armor layer 2, and a vibration sensing optical cable and the armor gap of the outer armor layer 4, because the temperature, the pressure and the water wave of ocean current are easily and accurately sensed, and simultaneously the protection of the outer armor layer can be obtained, so the vibration sensing optical cable, the temperature sensing optical cable and the water wave sensing optical cable are arranged in the armor gap of the inner armor layer; and the vibration sensing optical cable is arranged on the outer armor layer and can be in close contact with the water area environment, so that the sensing sensitivity and accuracy are improved. Of course, in other technical solutions, the positions of the inner and outer armor layers of the sensing optical cable may be adjusted according to actual requirements.
Further, the pressure sensing optical cable comprises one or any combination of a pressure sensing optical fiber 8, a temperature sensing optical fiber and a water wave sensing optical fiber; the temperature sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber; the water wave sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber. In the above, the pressure sensing optical fiber, the temperature sensing optical fiber and the water wave sensing optical fiber are respectively used for sensing pressure, temperature and water wave, and these three kinds of sensing optical cables may be used for sensing only one kind of parameter (pressure, temperature or water wave), or one kind of sensing optical cable may be used for sensing one kind of parameter or any combination of pressure, temperature or water wave. When one sensing optical cable is used for sensing various parameters, one optical cable has various sensing optical fibers, that is, the various sensing optical fibers simultaneously form a cable core of the sensing optical cable. In the technical solution of this embodiment, the pressure sensing optical fiber and the temperature sensing optical fiber are disposed in one environment sensing optical cable.
Referring to fig. 2, the vibration sensing optical cable 6 includes a jacket and a vibration sensing optical fiber 10 disposed in the jacket, and a vibration gap 12 is formed between the vibration sensing optical fiber 10 in the jacket. The vibration gap 12 provides a moving space for the vibration sensing optical fiber 10, so that it can sense the state of the surrounding sea area more sensitively, and the sensing precision and accuracy are improved.
As a further improvement of the present invention, the composite submarine cable further comprises an outer conductor 14, the outer conductor 14 is disposed in the armor gap of the armor layer, the outer conductor 14 is used as a single electrode, and the inner conductor 16 constituting the electrical unit realizes bipolar power transmission, so that bipolar (positive and negative) power transmission is more reliable and stable, and one-time laying cost is saved. The inner conductor and the outer conductor of the invention can meet the high voltage transmission requirement of 20KV and below, improve the transmission power and reduce the line loss.
As a further improvement of the present invention, the armouring wire 18 includes a body and a buffer bush, and the buffer bush is covered outside the body. The body preferably uses the steel wire, and the outer cladding buffer bush of steel wire can reduce armoured wire 18 to the damage risk of environment sensing optical cable, keeps apart the sea water simultaneously, strengthens corrosion-resistant ability.
Further, a zinc-aluminum alloy plating layer is provided on the body of the armor wire 18. The zinc-aluminum alloy coating can improve the tensile strength and the corrosion resistance of the steel wire body.
The composite submarine cable further comprises a sheath layer 20, and the sheath layer 20 is coated on the outer side of the outer armor layer 4. The sheath layer 20 prevents seawater from directly contacting, and improves the corrosion resistance and seawater resistance of the submarine cable.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (9)
1. The utility model provides a compound submarine cable, includes the cable core body, the cable core body includes electric unit and communication optical unit, its characterized in that: the composite submarine cable further comprises an environment-sensitive light unit and an armor layer twisted by armor wires, wherein the armor layer is coated outside the cable core body, and the environment-sensitive light unit is arranged in an armor gap of the armor layer; the environment sensing light unit comprises at least one environment sensing optical cable;
the armor layer comprises an inner armor layer and an outer armor layer, the inner armor layer is coated on the outer side of the cable core body, and the outer armor layer is coated on the outer side of the inner armor layer; at least one environment sensing optical cable is arranged in the armor gap of the inner armor layer, and at least one environment sensing optical cable is arranged in the armor gap of the outer armor layer.
2. The composite sea cable of claim 1 wherein: the environmental sensing optical cable includes a pressure sensing optical cable, a temperature sensing optical cable, a vibration sensing optical cable, and a water wave sensing optical cable.
3. The composite sea cable of claim 2 wherein: the pressure sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber; the temperature sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber; the water wave sensing optical cable comprises one or any combination of a pressure sensing optical fiber, a temperature sensing optical fiber and a water wave sensing optical fiber.
4. The composite sea cable of claim 2 wherein: the vibration sensing optical cable comprises a sleeve and vibration sensing optical fibers arranged in the sleeve, and vibration gaps are formed among the vibration sensing optical fibers in the sleeve.
5. The composite sea cable of claim 1 wherein: the composite submarine cable further comprises an outer conductor, and the outer conductor is arranged in an armor gap of the armor layer; the outer conductor and the inner conductor constituting the electric unit realize bipolar power transmission.
6. The composite sea cable of claim 1 wherein: the armoured wire comprises a body and a buffer lining, wherein the buffer lining is coated on the outer side of the body.
7. The composite sea cable of claim 6 wherein: and a zinc-aluminum alloy coating is arranged on the body of the armor wire.
8. The composite sea cable of claim 1 wherein: the composite submarine cable further comprises a sheath layer, and the sheath layer is coated on the outer side of the outer armor layer.
9. The composite sea cable of claim 1 wherein: the communication optical unit comprises a communication optical cable, an inner conductor forming the electrical unit is coated on the outer side of the communication optical cable, an insulating layer is coated on the outer side of the inner conductor, and the armor layer is coated on the outer side of the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358485.7A CN111681828B (en) | 2020-04-29 | 2020-04-29 | Composite submarine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358485.7A CN111681828B (en) | 2020-04-29 | 2020-04-29 | Composite submarine cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111681828A CN111681828A (en) | 2020-09-18 |
| CN111681828B true CN111681828B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010358485.7A Active CN111681828B (en) | 2020-04-29 | 2020-04-29 | Composite submarine cable |
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| CN (1) | CN111681828B (en) |
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2020
- 2020-04-29 CN CN202010358485.7A patent/CN111681828B/en active Active
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| Publication number | Publication date |
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| CN111681828A (en) | 2020-09-18 |
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