CN212410930U - Corrosion-resistant OPGW - Google Patents
Corrosion-resistant OPGW Download PDFInfo
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- CN212410930U CN212410930U CN202021470458.0U CN202021470458U CN212410930U CN 212410930 U CN212410930 U CN 212410930U CN 202021470458 U CN202021470458 U CN 202021470458U CN 212410930 U CN212410930 U CN 212410930U
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Abstract
The utility model discloses a corrosion-resistant OPGW contains many corrosion-resistant composite lines and an at least optical fiber unit, and many corrosion-resistant composite lines and an at least optical fiber unit strand into OPGW each other, and corrosion-resistant composite line contains and strengthens core, conducting layer and at least one deck corrosion-resistant layer, and the conducting layer setting is in the outside of strengthening the core, and at least one deck corrosion-resistant layer sets up the outside at the conducting layer. The utility model discloses possess the corrosion-resistant effect of superior performance, be applicable to heavy corrosion area, guarantee that the circuit operation is safe and reliable more.
Description
Technical Field
The utility model relates to a OPGW, especially a corrosion-resistant OPGW belongs to the overhead transmission line field.
Background
The OPGW is also called an optical fiber composite overhead ground wire, and is used for forming an optical fiber communication network on a power transmission line by placing optical fibers in the ground wire of an overhead power transmission line, so that the OPGW has double functions of ground wire and communication. The OPGW is formed by twisting an optical fiber unit and an aluminum-clad steel wire or an aluminum alloy wire, and the mechanical property and the electrical property of the OPGW are provided by the aluminum-clad steel wire or the aluminum alloy wire. Under general atmospheric environment, the fine and close oxide film on aluminium surface can play anticorrosive effect, but aluminium itself is more active metal, and belongs to amphoteric metal, can react with acid, alkali, and when environmental pollution was comparatively serious, or be in coastal high salt fog region, aluminium clad steel wire's aluminium lamination can take place to corrode, when the steel core exposes, the electrochemical corrosion of dissimilar intermetallic takes place at steel aluminium interface, leads to the overhead line to split when serious, causes major accident.
At present, the common anticorrosion measure of the overhead transmission conductor and the ground wire is to coat anticorrosion factice, the overhead transmission conductor and the ground wire are protected from being corroded by the physical shielding effect of the anticorrosion factice, the outer layer can be oiled under moderate corrosion environment conditions, and the inner and outer layer can be fully oiled under severe corrosion environment conditions. However, under the condition of rainstorm climate, the antiseptic ointment is continuously taken away by the rainwater due to the continuous washing of the rainwater; the antiseptic ointment can be aged in a burning sun or a dry environment. The preservative effect of the preservative ointment on the OPGW can be reduced and weakened due to the loss and aging of the preservative ointment. Generally speaking, the design life of OPGW is 30-40 years, but the service life of the antiseptic ointment is generally not more than 20 years.
From the above, it can be known that, in the prior art, there are two common anticorrosion measures for overhead power transmission conductors and ground wires: one is to design the optical fiber unit into an aluminum layer structure, the whole OPGW has no dissimilar metal contact, and the compact oxide film of aluminum is used for corrosion prevention, so that the scheme is suitable for dry inland areas with light pollution level; the other is to utilize the physical shielding effect of the antiseptic ointment to achieve the antiseptic effect, and the scheme is generally suitable for wet coastal areas and heavily polluted industrial areas. However, in heavy salt spray corrosion areas, such as the west sand archipelagic region of China, the red sea region of Sauter West and the coastal region of India ocean, the aluminum-clad steel wire aluminum layer can be completely corroded to expose the steel core after the whole oil-coated OPGW is erected and operated for about 5 years, and the service life of the OPGW in the heavy salt spray corrosion area is generally not more than 10 years.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a corrosion-resistant OPGW is provided, possesses good corrosion resistance, satisfies the normal use requirement in the heavy salt fog corrosion area of high temperature, high humidity, high salt fog.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a corrosion-resistant OPGW, characterized in that: contain many corrosion-resistant composite lines and an at least optical fiber unit, many corrosion-resistant composite lines and an at least optical fiber unit transposition each other into OPGW, corrosion-resistant composite line contains and strengthens core, conducting layer and at least one deck corrosion-resistant layer, and the conducting layer setting is in the outside of strengthening the core, and at least one deck corrosion-resistant layer sets up the outside at the conducting layer.
Further, the optical fiber unit comprises at least one optical fiber, a filler and a corrosion-resistant metal pipe, wherein the at least one optical fiber is arranged in the corrosion-resistant metal pipe, and the other spaces except the optical fiber in the corrosion-resistant metal pipe are filled with the filler.
Furthermore, the optical fiber is made of quartz optical fiber, and the coating layer of the quartz optical fiber is made of one or more of an extremely cold-resistant coating material with the working temperature of-70 ℃, a common acrylate coating material with the temperature of 85 ℃, an acrylate coating material with the temperature resistance level of 150 ℃, an acrylate or silicone rubber coating material with the temperature resistance level of 200 ℃ and a polyimide coating material with the temperature resistance level of 350 ℃.
Further, the filler is fiber paste.
Furthermore, the corrosion-resistant metal pipe is made of stainless steel materials and is formed in one step through laser welding of a stainless steel band.
Further, the reinforcing core is made of carbon steel, alloy or carbon fiber.
Further, the conducting layer adopts copper, aluminum, copper alloy or aluminum alloy.
Further, the corrosion-resistant layer is made of stainless steel, nickel-based alloy, duplex stainless steel, titanium or titanium alloy.
Further, the corrosion-resistant layer is coated on the outer side of the conductive layer, and a gap between the corrosion-resistant layer and the conductive layer is filled with corrosion-resistant factice.
Further, an anti-corrosion ointment is filled between the plurality of anti-corrosion composite wires and the at least one optical fiber unit.
Compared with the prior art, the utility model, have following advantage and effect: the corrosion-resistant OPGW has a corrosion-resistant effect with excellent performance, is suitable for heavy corrosion areas, and ensures that the line runs more safely and reliably; the corrosion-resistant composite wire integrates different characteristics of different materials, has the advantages of mechanical property, electrical property and environmental adaptability, prolongs the service life of OPGW under the condition of not obviously increasing the cost, and has good economy and high cost performance; the structure of the OPGW is consistent with the structure of the existing line, the line compatibility is good, the difference between the production process of the OPGW and the conventional process is not great, and the OPGW is easy to realize and popularize.
Drawings
Fig. 1 is a schematic diagram of an OPGW of the present invention.
Fig. 2 is a schematic view of the corrosion-resistant composite wire of the present invention.
Fig. 3 is a schematic diagram of an optical fiber unit according to the present invention.
Detailed Description
To elaborate on the technical solution adopted by the present invention for achieving the predetermined technical purpose, the technical solution in the embodiment of the present invention will be clearly and completely described below by combining with the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of the present invention, not a whole embodiment, and technical means or technical features in the embodiment of the present invention can be replaced without paying creative efforts, and the present invention will be described in detail below by combining with the embodiments with reference to the drawings.
As shown in fig. 1, the utility model discloses a corrosion-resistant OPGW contains many corrosion-resistant composite line 1 and an at least optical fiber unit 2, and many corrosion-resistant composite line 1 and an at least optical fiber unit 2 strand into OPGW each other, as shown in fig. 2, corrosion-resistant composite line 1 contains and strengthens core 3, conducting layer 4 and at least one deck corrosion-resistant layer 5, and conducting layer 4 sets up in the outside of strengthening core 3, and at least one deck corrosion-resistant layer 5 sets up in the outside of conducting layer 4. The corrosion-resistant composite wire and the optical fiber unit are twisted together to form a shape, one layer or a plurality of layers can be twisted, the optical fiber unit can be arranged at different positions such as a central position, an inner layer, an outer layer, a secondary outer layer and the like, and the optical fiber unit can be protected from being damaged by external mechanical action. The conductive layer 4 can be coated on the outer layer of the reinforced core 3 in a continuous coating mode, and then the required shape and size can be obtained through synchronous drawing deformation.
As shown in fig. 3, the optical fiber unit 2 includes at least one optical fiber 6, a filler 7, and a corrosion-resistant metal tube 8, the at least one optical fiber 6 is disposed inside the corrosion-resistant metal tube 8, and the space inside the corrosion-resistant metal tube 8 except for the optical fiber 6 is filled with the filler 7. The optical fiber 6 is made of quartz optical fiber, the coating layer material of the quartz optical fiber can be selected according to the application environment requirement of the optical cable, and the coating layer of the quartz optical fiber is made of one or more of an extremely cold-resistant coating material with the working temperature of-70 ℃, a common acrylate coating material with the temperature of 85 ℃, an acrylate coating material with the temperature resistant grade of 150 ℃, an acrylate or silicon rubber coating material with the temperature resistant grade of 200 ℃ and a polyimide coating material with the temperature resistant grade of 350 ℃.
The filler 7 is fiber paste or other fillers, and can be filled with corresponding temperature-resistant fillers according to the use environment temperature. The corrosion-resistant metal pipe 8 is made of stainless steel materials and is formed in one step through laser welding of stainless steel bands.
The reinforcing core 3 is made of carbon steel, alloy or carbon fiber. The conductive layer 4 is made of copper, aluminum, copper alloy or aluminum alloy. The corrosion-resistant layer 5 is made of non-insulating materials such as stainless steel, nickel-based alloy, duplex stainless steel, titanium or titanium alloy and the like, is not limited to metal materials, and endows the corrosion-resistant composite wire with corrosion resistance. The corrosion-resistant layer 5 is coated on the outer side of the conductive layer 4, and a gap between the corrosion-resistant layer 5 and the conductive layer 4 is filled with corrosion-resistant factice. When the corrosion-resistant layer 5 of the corrosion-resistant composite wire is made of a corrosion-resistant metal material, the corrosion-resistant layer can be coated outside the conductive layer in a laser welding mode, the gap between the corrosion-resistant layer and the conductive layer is controlled by online drawing, when a certain gap needs to be reserved, corrosion-resistant factice can be filled in the gap, the corrosion-resistant effect is further enhanced, and the corrosion-resistant layer can be one or multiple layers. When the corrosion-resistant layer 5 of the corrosion-resistant composite wire is made of non-insulating organic materials, the corrosion-resistant layer can be wrapped outside the conductive layer in a plastic extruding, spraying and other modes, and the thickness of the corrosion-resistant layer is not less than 0.1 mm.
And an anti-corrosion ointment is filled between the corrosion-resistant composite wires 1 and the at least one optical fiber unit 2.
The present application is further illustrated by the following specific examples;
the optical fiber 6 is a single-mode optical fiber, the number of the cores of the optical fiber 6 is 24, the coating layer material of the optical fiber 6 is an acrylic coating material, and the long-term working temperature is 85 ℃. The diameter of the coating layer of the optical fiber 6 is 245um +/-10 um, the diameter of the mode field of the optical fiber 6 is 7.6-10 um, and the diameter of the cladding of the optical fiber 6 is 125 um.
The outer diameter of the optical fiber unit 2 is 3.2mm, the wall thickness is 0.2mm, the material is S22053, and the filler 7 of the optical fiber unit 2 is optical fiber water-blocking ointment.
The reinforced core 3 of the corrosion-resistant composite wire 1 is a medium carbon steel wire with the mark of 72A, the conductive layer 4 is electrician pure aluminum, the corrosion-resistant layer 5 is duplex stainless steel with the mark of S22053 and the thickness of 0.2mm, the outer diameter of the corrosion-resistant composite wire 1 is 3.3mm, and the electric conductivity is 20.3 percent IACS.
The corrosion-resistant OPGW is of a layer-twisted structure, the central line is a corrosion-resistant composite wire, the optical fiber unit is arranged on the inner layer and twisted with 5 corrosion-resistant composite wires, the outer layer is twisted with 12 corrosion-resistant composite wires, and the outer diameter of the OPGW is 16.5 mm.
The manufacturing process of the OPGW of the embodiment is as follows:
1. optical fiber: the bare optical fiber adopts printing ink to loop, paint to color and ultraviolet light to solidify.
2. An optical fiber unit: and the colored optical fiber is placed in a fiber placing frame, the double-phase stainless steel band is placed in the fiber placing frame, laser welding is adopted after the double-phase stainless steel band passes through a forming die, the optical fiber is placed after stable welding, and the optical fiber is taken up after drawing.
3. The corrosion-resistant composite wire reinforced core: and (3) pre-drawing a 5.5mm 72A medium carbon steel wire rod, and then carrying out heat treatment to obtain the reinforced core of the corrosion-resistant composite wire.
4. And (3) corrosion-resistant composite wire conductive layer: and (3) coating the aluminum rod for the electrician outside the medium carbon steel wire in a continuous extrusion coating mode, and synchronously drawing and deforming to obtain the conductive layer of the corrosion-resistant composite wire.
5. Corrosion-resistant composite wire: and (3) placing the duplex stainless steel strip on a strip placing frame, passing through a forming die, then coating the duplex stainless steel strip on the outer layer of the semi-finished composite wire in the step (4), and then performing laser welding and online drawing to obtain the corrosion-resistant composite wire with the outer diameter of 3.3mm and the electric conductivity of 20.3% IACS.
6. The optical fiber unit and the corrosion-resistant composite wire are twisted according to a certain pitch, the optical fiber unit is arranged in the inner layer, the twisting is tight, no gap or loose strand exists, and the outer diameter of the OPGW is 16.5 mm.
The corrosion-resistant OPGW has a corrosion-resistant effect with excellent performance, is suitable for heavy corrosion areas, and ensures that the line runs more safely and reliably; the corrosion-resistant composite wire integrates different characteristics of different materials, has the advantages of mechanical property, electrical property and environmental adaptability, prolongs the service life of OPGW under the condition of not obviously increasing the cost, and has good economy and high cost performance; the structure of the OPGW is consistent with the structure of the existing line, the line compatibility is good, the difference between the production process of the OPGW and the conventional process is not great, and the OPGW is easy to realize and popularize.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the technical scope of the present invention, but all the modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principle of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A corrosion-resistant OPGW, characterized in that: contain many corrosion-resistant composite lines and an at least optical fiber unit, many corrosion-resistant composite lines and an at least optical fiber unit transposition each other into OPGW, corrosion-resistant composite line contains and strengthens core, conducting layer and at least one deck corrosion-resistant layer, and the conducting layer setting is in the outside of strengthening the core, and at least one deck corrosion-resistant layer sets up the outside at the conducting layer.
2. A corrosion resistant OPGW as claimed in claim 1 wherein: the optical fiber unit comprises at least one optical fiber, a filler and a corrosion-resistant metal pipe, wherein the at least one optical fiber is arranged in the corrosion-resistant metal pipe, and other spaces except the optical fiber in the corrosion-resistant metal pipe are filled with the filler.
3. A corrosion resistant OPGW as claimed in claim 2 wherein: the optical fiber is made of quartz optical fiber, and the coating layer of the quartz optical fiber is made of one or more of an extremely cold-resistant coating material with the working temperature reaching-70 ℃, a common acrylate coating material with the temperature of 85 ℃, an acrylate coating material with the temperature resistance level reaching 150 ℃, an acrylate or silicon rubber coating material with the temperature resistance level reaching 200 ℃ and a polyimide coating material with the temperature resistance level reaching 350 ℃.
4. A corrosion resistant OPGW as claimed in claim 2 wherein: the filler is fiber paste.
5. A corrosion resistant OPGW as claimed in claim 2 wherein: the corrosion-resistant metal pipe is made of stainless steel materials and is formed in one step through laser welding of a stainless steel band.
6. A corrosion resistant OPGW as claimed in claim 1 wherein: the reinforcing core is made of carbon steel, alloy or carbon fiber.
7. A corrosion resistant OPGW as claimed in claim 1 wherein: the conducting layer is made of copper, aluminum, copper alloy or aluminum alloy.
8. A corrosion resistant OPGW as claimed in claim 1 wherein: the corrosion-resistant layer is made of stainless steel, nickel-based alloy, duplex stainless steel, titanium or titanium alloy.
9. A corrosion resistant OPGW as claimed in claim 1 wherein: the corrosion-resistant layer is coated on the outer side of the conductive layer, and a gap between the corrosion-resistant layer and the conductive layer is filled with corrosion-resistant factice.
10. A corrosion resistant OPGW as claimed in claim 1 wherein: and an anti-corrosion ointment is filled between the plurality of anti-corrosion composite wires and the at least one optical fiber unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470458.0U CN212410930U (en) | 2020-07-23 | 2020-07-23 | Corrosion-resistant OPGW |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470458.0U CN212410930U (en) | 2020-07-23 | 2020-07-23 | Corrosion-resistant OPGW |
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| Publication Number | Publication Date |
|---|---|
| CN212410930U true CN212410930U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021470458.0U Active CN212410930U (en) | 2020-07-23 | 2020-07-23 | Corrosion-resistant OPGW |
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| Country | Link |
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| CN (1) | CN212410930U (en) |
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- 2020-07-23 CN CN202021470458.0U patent/CN212410930U/en active Active
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