CN210223633U - Cable for offshore shoal - Google Patents
Cable for offshore shoal Download PDFInfo
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- CN210223633U CN210223633U CN201921287827.XU CN201921287827U CN210223633U CN 210223633 U CN210223633 U CN 210223633U CN 201921287827 U CN201921287827 U CN 201921287827U CN 210223633 U CN210223633 U CN 210223633U
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Abstract
The utility model relates to a coastal waters is cable for shoal has solved the not enough of prior art, and technical scheme is: comprises a plurality of cable cores, the cable cores are wound and all wrapped in a water-blocking layer, a non-hygroscopic filling layer is filled in the gap in the water-blocking layer, the waterproof layer is wrapped with a waterproof anti-corrosion layer, the waterproof anti-corrosion layer is wrapped with a sub-layer waterproof and water-proof layer, the outer side of the sub-layer waterproof and water-proof layer is wrapped with an anti-corrosion steel wire mixed armor layer, the outer side of the anti-corrosion steel wire mixed armor layer is wrapped with a sun-resistant anti-ultraviolet anti-corrosion waterproof protective layer, the cable core comprises a conductor, the outer side of the conductor is covered with a water tree resistant crosslinked polyethylene material insulating layer, the outer side of the water tree resistant crosslinked polyethylene material insulating layer is covered with a metal shielding layer, the waterproof anti-corrosion layer comprises an aluminum-plastic composite belt and a polyethylene sheath, the aluminum-plastic composite belt is a double-sided plastic polymer film aluminum-plastic composite belt longitudinally wrapped on the outer side of the water blocking layer, and the inner side of the polyethylene sheath is tightly bonded with a copolymer on the aluminum-plastic composite belt.
Description
Technical Field
The utility model relates to a cable, in particular to cable for coastal waters shoal.
Background
China has a long coastline, large and small island star chess, has extremely abundant marine resources, and is an important material basis for sustainable development of China.
With the continuous strengthening of comprehensive national force, the vigorous promotion of ocean development and the requirement of national defense construction in China, the infrastructure engineering between islands and coastlines is comprehensively developed, and the problem of power supply can not be avoided no matter how military or civil facilities are constructed. The problem of power sources among islands is solved through wind power, thermal power, solar power generation and other modes. Meanwhile, coastal people improve the environment, improve the production and production quality, continuously increase the demand on electric power, and provide wide market prospect for developing and researching products which are suitable for carrying out electric power cables in shallow sea water areas and coastal mudflats (intertidal zones) with the water depth within 50 meters. Electric power transmission is required to be carried out between coastal islands, islands and coastlines in the fields of Guangdong, Fujian, Zhejiang, Jiangsu, Shandong, Liaoning, Bohai sea, yellow sea, Donghai Zhoushan island, Hainan island, south China sea and the like. The market demand is closely related to economic development of coastal cities and island regions and ocean resource development, and the prospect is good.
At present, the structure and continent of the power supply transmission line cable adopted in coastal areas, areas near islands, shallow sea water areas with water depth within 50 meters, coastal beaches and other power engineering projects are not greatly different, and special treatment and design are not carried out on the environmental characteristics such as laying service environment, laying conditions, perennial high temperature, ultraviolet irradiation and the like of the shallow sea water areas and the coastal beaches (intertidal zones). When power engineering projects such as coastal areas, sea island areas, shallow sea water areas with water depth within 50 meters, coastal mudflats (intertidal zones) and the like are designed and installed on power transmission lines, cable ditches or pipelines are laid, and corresponding drainage systems are provided for the engineering projects. During each contact with seawater or reverse flow of seawater, the cable product is corroded to a certain degree. In addition, the product cannot be operated in the environment inside the non-cable trench and the cable duct for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the existing prior art has corrosion to the cable product to a certain extent in the contact process with seawater or in the backward flow of seawater each time. In addition, the problem that the product cannot run in the environment in a non-cable trench and a cable duct for a long time is solved, and the cable for the offshore shoal is provided.
The utility model provides a technical scheme that its technical problem adopted is: an offshore shoal cable, comprising: comprises a plurality of cable cores, the cable cores are wound and all wrapped in a water-blocking layer, a non-hygroscopic filling layer is filled in the gap in the water-blocking layer, the waterproof layer is wrapped with a waterproof anti-corrosion layer, the waterproof anti-corrosion layer is wrapped with a sub-layer waterproof and water-proof layer, the outer side of the sub-layer waterproof and water-proof layer is wrapped with an anti-corrosion steel wire mixed armor layer, the outer side of the anti-corrosion steel wire mixed armor layer is wrapped with a sun-resistant anti-ultraviolet anti-corrosion waterproof protective layer, the cable core comprises a conductor, the outer side of the conductor is covered with a water tree resistant crosslinked polyethylene material insulating layer, the outer side of the water tree resistant crosslinked polyethylene material insulating layer is covered with a metal shielding layer, the waterproof anti-corrosion layer comprises an aluminum-plastic composite belt and a polyethylene sheath, the aluminum-plastic composite belt is a double-sided plastic polymer film aluminum-plastic composite belt longitudinally wrapped on the outer side of the water blocking layer, and the inner side of the polyethylene sheath is tightly bonded with a copolymer on the aluminum-plastic composite belt.
The utility model discloses the conductor: the compact type stranded conductor is adopted, the compact coefficient of the conductor reaches over 0.94, further invasion of water along conductor monofilaments can be prevented, and a closed water blocking process is realized. Low water absorption insulating layer: the high-quality water tree-resistant cross-linked polyethylene material is adopted, the water absorption rate of the material is less than 0.008 percent, and the material has excellent electrical insulation performance and water tree resistance. Comprehensive corrosion-resistant waterproof layer: the comprehensive waterproof structure is formed by longitudinally wrapping an aluminum-plastic composite belt with a double-sided plastic polymer film and extruding and wrapping a high-density polyethylene sheath, wherein the thickness of the aluminum-plastic composite belt is 0.12-0.55 mm. And the peeling strength of the aluminum-plastic composite belt and the sheath and the bonding strength of the lap joint of the aluminum-plastic composite belt are not less than 1N/mm. The structure can well adhere the polyolefin sheath and the copolymer on the aluminum-plastic composite belt tightly, the lap joint of the aluminum belt adheres the aluminum belt, so that the aluminum belt and the high-density polyethylene are combined into a whole, thereby forming a sealed metal protective layer, and the metal protective layer can still keep the adhesive strength when being immersed in water at the temperature of 100 percent for a long time. The bonding layer adopts a high-density polyethylene sheath, and the material has low water absorption (the value of the water absorption is less than 0.008%) and good chemical stability. It is resistant to corrosion of acid, alkali and salt water solution at normal temperature. The high tensile strength anticorrosion steel wire mixed armor design: aiming at the natural phenomena of sea tide, sea wave and the like frequently existing in shallow sea water areas, the cable is easy to shake and rub with the sea bottom to form natural damage of the cable; and artificial damages such as fishing net winding and pulling during ship anchoring and fishery fishing, influence of the self weight of the product and external force on the product quality, the product is armored by anticorrosion galvanized steel wires with the nominal diameter of 2.5mm or more and is wound in a gap spiral mode by anticorrosion galvanized steel strips with the diameter of 0.3mm or more, so that the product has excellent tensile strength, anticorrosion capacity and anti-extrusion capacity with certain strength. The sheath has low water absorption rate and excellent seawater corrosion resistance, and the service life of the cable is prolonged. The structure product has excellent radial and longitudinal water blocking functions, has a good water blocking effect, and can play a long-term moisture-proof, corrosion-proof and water blocking role. The long-term working temperature of the product is 90 ℃, the maximum linear temperature is 250 ℃, and reliable guarantee is provided for the safe and stable operation of the product.
Preferably, the voltage regulator is suitable for use in places with rated voltage of 1.8/3kV or below.
Preferably, the thickness of the aluminum-plastic composite belt is 0.12 mm-0.55 mm, the peeling strength of the aluminum-plastic composite belt and the sheath is more than 1N/mm, and the bonding strength of the lap joint of the aluminum-plastic composite belt is more than 1N/mm.
Preferably, the water absorption of the polyethylene sheath is less than 0.008%.
Preferably, the conductor is a conductor having a compressibility of up to 0.94.
Preferably, the anti-corrosion steel wire mixed armor layer comprises an anti-corrosion galvanized steel wire armor layer and an anti-corrosion galvanized steel strip armor layer, the anti-corrosion galvanized steel wire armor layer is arranged on the outer side of the secondary water-blocking and water-resisting layer, and the anti-corrosion galvanized steel strip armor layer is arranged on the outer side of the anti-corrosion galvanized steel wire armor layer.
Preferably, the steel wires in the anti-corrosion galvanized steel wire armor layer are anti-corrosion galvanized steel wires with the nominal diameter of 2.5mm or more, and the anti-corrosion galvanized steel strip armor layer is wound on the outer side of the anti-corrosion galvanized steel wire armor layer in a spiral mode in the gap of the anti-corrosion galvanized steel strip with the diameter of more than 0.3 mm.
The utility model discloses a substantive effect is: the utility model discloses have excellent corrosion-resistant function of blocking water, have better block water, corrosion-resistant effect, can play long-term corrosion-resistant and the effect of blocking water. The method can lay coastal areas, sea island areas, shallow sea water areas with water depth within 50 meters and coastal beach zones for a long time, the long-term working temperature of the product is 90 ℃, the maximum line temperature is 250 ℃, and the design life is more than 30 years.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the cable comprises a conductor, 2, a water tree resistant crosslinked polyethylene material insulating layer, 3, a metal shielding layer, 4, a non-hygroscopic filling layer, 5, a water resistant layer, 6, a waterproof and anti-corrosion layer, 7, a sublayer water resistant and water resistant layer, 8, an anti-corrosion steel wire mixed armor layer and 9, an anti-sunlight, anti-ultraviolet, anti-corrosion and waterproof protective layer.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
A cable for offshore shoals (see attached figure 1) comprises a plurality of cable cores, wherein the cable cores are wrapped in a water blocking layer 5, non-hygroscopic filling layers 4 are filled in gaps in the water blocking layer, a waterproof anti-corrosion layer 6 is wrapped outside the water blocking layer, a sub-water blocking and water blocking layer 7 is wrapped outside the waterproof anti-corrosion layer, an anti-corrosion steel wire mixed armor layer 8 is wrapped outside the sub-water blocking and water blocking layer, a sunlight-resistant, ultraviolet-resistant, anti-corrosion and waterproof sheath layer 9 is wrapped outside the anti-corrosion steel wire mixed armor layer, the cable cores comprise conductors 1, water tree cross-linked polyethylene material insulating layers 2 are wrapped outside the conductors, metal shielding layers 3 are wrapped outside the water tree cross-linked polyethylene material insulating layers, the waterproof anti-corrosion layer comprises aluminum-plastic composite tapes and polyethylene sheaths, the aluminum-plastic composite tapes are double-faced plastic polymer thin films longitudinally wrapped outside the water blocking layer, the inner side of the polyethylene sheath is tightly adhered with the copolymer on the aluminum-plastic composite belt. The voltage regulator is suitable for places with rated voltage of 1.8/3kV and below. The thickness of the aluminum-plastic composite belt is 0.12 mm-0.55 mm, the peeling strength of the aluminum-plastic composite belt and the sheath is more than 1N/mm, and the bonding strength of the lap joint of the aluminum-plastic composite belt is more than 1N/mm. The water absorption of the polyethylene sheath is less than 0.008%. The conductor is a conductor with a compaction factor of up to 0.94. The anti-corrosion steel wire mixed armor layer comprises an anti-corrosion galvanized steel wire armor layer and an anti-corrosion galvanized steel strip armor layer, wherein the anti-corrosion galvanized steel wire armor layer is arranged on the outer side of the sublayer water-blocking and water-resisting layer, and the anti-corrosion galvanized steel strip armor layer is arranged on the outer side of the anti-corrosion galvanized steel wire armor layer. The steel wires in the anti-corrosion galvanized steel wire armor layer are anti-corrosion galvanized steel wires with the nominal diameter of 2.5mm or more, and the anti-corrosion galvanized steel wire armor layer is formed by spirally wrapping the anti-corrosion galvanized steel wires with gaps of more than 0.3mm on the outer side of the anti-corrosion galvanized steel wire armor layer.
The utility model discloses the conductor: the compact type stranded conductor is adopted, the compact coefficient of the conductor reaches over 0.94, further invasion of water along conductor monofilaments can be prevented, and a closed water blocking process is realized. Low water absorption insulating layer: the high-quality water tree-resistant cross-linked polyethylene material is adopted, the water absorption rate of the material is less than 0.008 percent, and the material has excellent electrical insulation performance and water tree resistance. Comprehensive corrosion-resistant waterproof layer: the comprehensive waterproof structure is formed by longitudinally wrapping an aluminum-plastic composite belt with a double-sided plastic polymer film and extruding and wrapping a high-density polyethylene sheath, wherein the thickness of the aluminum-plastic composite belt is 0.12-0.55 mm. And the peeling strength of the aluminum-plastic composite belt and the sheath and the bonding strength of the lap joint of the aluminum-plastic composite belt are not less than 1N/mm. The structure can well adhere the polyolefin sheath and the copolymer on the aluminum-plastic composite belt tightly, the lap joint of the aluminum belt adheres the aluminum belt, so that the aluminum belt and the high-density polyethylene are combined into a whole, thereby forming a sealed metal protective layer, and the metal protective layer can still keep the adhesive strength when being immersed in water at the temperature of 100 percent for a long time. The bonding layer adopts a high-density polyethylene sheath, and the material has low water absorption (the value of the water absorption is less than 0.008%) and good chemical stability. It is resistant to corrosion of acid, alkali and salt water solution at normal temperature. The high tensile strength anticorrosion steel wire mixed armor design: aiming at the natural phenomena of sea tide, sea wave and the like frequently existing in shallow sea water areas, the cable is easy to shake and rub with the sea bottom to form natural damage of the cable; and artificial damages such as fishing net winding and pulling during ship anchoring and fishery fishing, influence of the self weight of the product and external force on the product quality, the product is armored by anticorrosion galvanized steel wires with the nominal diameter of 2.5mm or more and is wound in a gap spiral mode by anticorrosion galvanized steel strips with the diameter of 0.3mm or more, so that the product has excellent tensile strength, anticorrosion capacity and anti-extrusion capacity with certain strength. The sheath has low water absorption rate and excellent seawater corrosion resistance, and the service life of the cable is prolonged. The structure product has excellent radial and longitudinal water blocking functions, has a good water blocking effect, and can play a long-term moisture-proof, corrosion-proof and water blocking role. The long-term working temperature of the product is 90 ℃, the maximum linear temperature is 250 ℃, and reliable guarantee is provided for the safe and stable operation of the product.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.
Claims (7)
1. An offshore shoal cable, comprising: comprises a plurality of cable cores, the cable cores are wound and all wrapped in a water-blocking layer, a non-hygroscopic filling layer is filled in the gap in the water-blocking layer, the waterproof layer is wrapped with a waterproof anti-corrosion layer, the waterproof anti-corrosion layer is wrapped with a sub-layer waterproof and water-proof layer, the outer side of the sub-layer waterproof and water-proof layer is wrapped with an anti-corrosion steel wire mixed armor layer, the outer side of the anti-corrosion steel wire mixed armor layer is wrapped with a sun-resistant anti-ultraviolet anti-corrosion waterproof protective layer, the cable core comprises a conductor, the outer side of the conductor is covered with a water tree resistant crosslinked polyethylene material insulating layer, the outer side of the water tree resistant crosslinked polyethylene material insulating layer is covered with a metal shielding layer, the waterproof anti-corrosion layer comprises an aluminum-plastic composite belt and a polyethylene sheath, the aluminum-plastic composite belt is a double-sided plastic polymer film aluminum-plastic composite belt longitudinally wrapped on the outer side of the water blocking layer, and the inner side of the polyethylene sheath is tightly bonded with a copolymer on the aluminum-plastic composite belt.
2. The offshore shoal cable of claim 1, wherein: the voltage regulator is suitable for places with rated voltage of 1.8/3kV and below.
3. The offshore shoal cable of claim 1 or 2, wherein: the thickness of the aluminum-plastic composite belt is 0.12 mm-0.55 mm, the peeling strength of the aluminum-plastic composite belt and the sheath is more than 1N/mm, and the bonding strength of the lap joint of the aluminum-plastic composite belt is more than 1N/mm.
4. The offshore shoal cable of claim 1 or 2, wherein: the water absorption of the polyethylene sheath is less than 0.008%.
5. The offshore shoal cable of claim 1 or 2, wherein: the conductor is a conductor with a compaction factor of up to 0.94.
6. The offshore shoal cable of claim 1 or 2, wherein: the anti-corrosion steel wire mixed armor layer comprises an anti-corrosion galvanized steel wire armor layer and an anti-corrosion galvanized steel strip armor layer, wherein the anti-corrosion galvanized steel wire armor layer is arranged on the outer side of the sublayer water-blocking and water-resisting layer, and the anti-corrosion galvanized steel strip armor layer is arranged on the outer side of the anti-corrosion galvanized steel wire armor layer.
7. The offshore shoal cable of claim 6, wherein: the steel wires in the anti-corrosion galvanized steel wire armor layer are anti-corrosion galvanized steel wires with the nominal diameter of 2.5mm or more, and the anti-corrosion galvanized steel wire armor layer is formed by spirally wrapping the anti-corrosion galvanized steel wires with gaps of more than 0.3mm on the outer side of the anti-corrosion galvanized steel wire armor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287827.XU CN210223633U (en) | 2019-08-09 | 2019-08-09 | Cable for offshore shoal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287827.XU CN210223633U (en) | 2019-08-09 | 2019-08-09 | Cable for offshore shoal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210223633U true CN210223633U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921287827.XU Expired - Fee Related CN210223633U (en) | 2019-08-09 | 2019-08-09 | Cable for offshore shoal |
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| Country | Link |
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| CN (1) | CN210223633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113427735A (en) * | 2021-06-23 | 2021-09-24 | 浙江万马股份有限公司 | Algae-proof antibacterial sheath, online mixed extrusion molding production process method and application |
-
2019
- 2019-08-09 CN CN201921287827.XU patent/CN210223633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113427735A (en) * | 2021-06-23 | 2021-09-24 | 浙江万马股份有限公司 | Algae-proof antibacterial sheath, online mixed extrusion molding production process method and application |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |