CN104810106A - Pneumatic blowing-in optical fiber composite smart energy power cable and production method thereof - Google Patents
Pneumatic blowing-in optical fiber composite smart energy power cable and production method thereof Download PDFInfo
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- CN104810106A CN104810106A CN201510197372.2A CN201510197372A CN104810106A CN 104810106 A CN104810106 A CN 104810106A CN 201510197372 A CN201510197372 A CN 201510197372A CN 104810106 A CN104810106 A CN 104810106A
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Abstract
The invention discloses a pneumatic blowing-in optical fiber composite smart energy power cable and a production method thereof. The cable is composed of power cable bodies of embedded optical unit tubes and transmission optical fiber units. Every power cable body of the embedded optical unit tube is sequentially composed of a cable core, an inner lining layer, an armor layer and an outer sheath from inside to outside. The cable core comprises at least one insulation cable core body and filling. The insulation cable core body is sequentially composed of a conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer and a metal shielding layer from inside to outside. The filling is internally provided with at least one optical unit tube. The number of the transmission optical fiber units is the same with that of the optical unit tubes. Every transmission optical fiber unit comprises an optical fiber, a cured layer, a protective layer and at least one pressure channel arranged on the surface of the protective layer. The transmission optical fiber units are suspended in the optical unit tubes of the power cable bodies. The pneumatic blowing-in optical fiber composite smart energy power cable is produced through an on-site compositing mode, and accordingly the cable is divided into two parts of the cable bodies of the embedded optical unit tubes and the transmission optical fiber units, so that the problems of power cable length loss, optical fiber communication performance degradation and the like of an existing optical fiber composite power cable composite cable in construction and installation is solved.
Description
Technical field
The present invention relates to a kind of fiber composite power cable, particularly one is pneumatic is blown into formula optical fiber composite intelligent energy power cable and preparation method thereof.
Background technology
Fiber composite power cable is a kind of novel optical fiber composite rope for power circuit, has the function of common cable cable, communications optical cable and on-line checkingi etc.Carry out telecommunications network, radio network, internet content transmission the business such as " integration of three networks " and in conjunction with the construction of on-line monitoring electric power networks, finally realize the construction of strong intelligent bulk power grid.
Current fiber composite power cable also has announcement in the patent literature, such as utility model patent ZL201120092927.4 disclosed " a kind of optical fiber composite medium-pressure cable ", its structure is for comprising cable core, cable core belting layer and oversheath, there is electric power transmission lead and the filler that blocks water in cable core, every root electric power transmission lead is by the outer coating conductor screen successively of conductor, insulating barrier, insulation screen, metal screen layer is formed, to it is characterized in that in cable core filling position is provided with and establish the Loose tube of optical fiber and at the outer coated non-metal reinforced layer successively of Loose tube by interior, restrictive coating and the optical fiber communication unit formed, inner sheath is provided with successively between cable core belting layer and oversheath, steel-tape armouring layer.The structure comprising various types of optical fiber composite cables that other have been announced is basic similar with above-mentioned patent, is all implanted in power cable core by Optical Fiber Transmission unit in factory, plays electric power, communication defeated object altogether.But such optical fiber composite monolithic structure is in practical engineering application process, optical, electrical order point defeated altogether can be realized, but in actual shipment, install, to lay and in check process, due to the reason of mechanical fiber optic poor performance, cause the loss of whole cable length on-the-spot serious, finally cause the increase of the overall construction cost of project.In order to improve optical fiber transmission quality, large based on power cable external diameter, Heavy Weight, Cable Bending Radius has the reason of requirement, the delivery length of a general dish power cable is 300 ~ 500 meters, for the circuit of power transmission path more than more than 500 meters, just needs employing two or multi-cable serial connection, set up cable intermediate joint, same optical fiber also needs to continue.And optical fiber continues each time and all will cause optical attenuation, affect optical communication quality.
Summary of the invention
First object of the present invention overcomes above-mentioned the deficiencies in the prior art, provides a kind of structure simple, and cable is installed, lay length loss is little, with better function and carry out the fiber composite power cable of real time on-line monitoring.
The technical scheme realizing the present invention's first object is pneumaticly blown into formula optical fiber composite intelligent energy power cable, is made up of the power cable of pre-buried optical unit tubes and Transmission Fibers unit; The power cable of described pre-buried optical unit tubes is followed successively by cable core, inner covering, armour and oversheath from the inside to the outside; Described cable core comprises at least one insulated wire cores and filling; Described insulated wire cores is followed successively by conductor, conductor shield, insulating barrier, insulation screen and metal screen layer from the inside to the outside; At least one optical unit tubes is set in described filling; The quantity of described Transmission Fibers unit is consistent with the quantity of optical unit tubes, comprises optical fiber, cured layer, sheath and sheath surface is provided with pressure channel; Described Transmission Fibers unit penetrates in compound and cable process at fiber unit and is suspended in the optical unit tubes of power cable.
Described insulated wire cores is three, between two tangent setting; A filling is set between adjacent two insulated wire cores; Described optical unit tubes and Transmission Fibers unit are three.
The diameter d 2 of described filling is determined according to following formula:
in formula, R is the radius of cable core, and r1 is the radius of insulated wire cores.
Arrange in described each Transmission Fibers unit and be not more than 12 optical fiber.
Described optical unit tubes is pipe, and internal diameter is not less than 3.5mm, and thickness of pipe wall is 0.7 ~ 1.0mm, the smooth rounding of inside pipe wall, without the thrust being greater than 0.25mm height.
The external diameter of described Transmission Fibers unit is not more than 3mm, and sheath is axially without the thrust being greater than 0.25mm.
Described pressure channel is in the distribution of sheath surface uniform, and be no less than 8, the degree of depth is 0.03 ~ 0.05mm.
Second object of the present invention is to provide a kind of manufacture method of new fiber composite power cable.
The technical scheme realizing the present invention's second object is the pneumatic manufacture method being blown into formula optical fiber composite intelligent energy power cable, comprises the following steps:
Step one: produce respectively and obtain power cable and Transmission Fibers unit; Described power cable is followed successively by cable core, inner covering, armour and oversheath from the inside to the outside; Described cable core comprises at least one insulated wire cores and filling; At least one optical unit tubes is set in described filling; The quantity of described Transmission Fibers unit is consistent with the quantity of optical unit tubes, at least one pressure channel comprising optical fiber, cured layer, sheath and arrange on sheath surface;
Step 2: power cable (1) and the Transmission Fibers unit (2) of pre-buried optical unit tubes step one obtained deliver to erecting bed respectively;
Step 3: the power cable of pre-buried optical unit tubes is required mounting and installation according to laying.
Step 4: after the power cable layer, installation of pre-buried optical unit tubes, Transmission Fibers unit (2) is penetrated optical unit tubes (11-3) one by one, realize optical fiber compound.
In described step 3, Transmission Fibers unit is penetrated the method for optical unit tubes for arrange obturator in Transmission Fibers unit one end, sent into by the motive force of gases at high pressure or liquid, utilize gases at high pressure to be suspended in the middle of power cable optical unit tubes by Transmission Fibers unit, reduce the frictional force between Transmission Fibers unit and unit pipes.
Or in described step 3, the method sent in fiber unit pipe by Transmission Fibers unit is by two or one group of guide wheel, utilizes the pivoting friction between guide wheel and Transmission Fibers unit to provide power.
After have employed technique scheme, the present invention has following positive effect: (1) cable of the present invention adopts the mode of on-the-spot compound, therefore cable is divided into power cable and Transmission Fibers unit two parts of pre-buried optical unit tubes, thus solves original optical fiber composite cable problem such as cable length loss, the reduction of optical fiber communication performance in construction and installation process.
(2) method of the present invention can avoid existing overall supply of material form optical fiber composite cable technology due to the weak reason of mechanical fiber optic performance, the loss that the optical fiber composite cable caused requires to separate quite long optical fiber in packed and transported, mounting and installation, commissioning test etc. and forms power cable length, there will not be cable length inadequate, need purchase than cable longer in the original plan to meet the loss of length, thus cause the problem that cable purchase cost increases.
(3) construction of cable of the present invention and manufacture method, except having the advantage of minimizing cable length loss, also has raising optical fiber transmission quality, facilitates the function of cable later stage working service.Simultaneously compared with existing integral type optical fiber composite cable, the optical, electrical mode of erecting bed of the present invention compound, can also in the use procedure of cable later stage, after cause optical fiber to damage due to a variety of causes, conveniently can realize optical fiber to change, fiber optic cables of the prior art run into this type of situation, can only discard optical fiber communication function.
(4) optical unit tubes that the present invention is pre-buried is arranged on the position in power cable, consider the impact of optical unit tubes inner fiber by electric power cable operating temperature, consider the outside diameter of cable and material cost simultaneously, therefore optical unit tubes is arranged at the filling position of cable core, simultaneously away from the high temperature center of power cable, be in the outside away from cable axle center, with filling fixed position.
(5) optical unit tubes structure of the present invention is circular tube structure, smooth rounding in pipe, and introducing to ensure Transmission Fibers provides the useful space.Protect axially without large thrust outside Transmission Fibers unit, Transmission Fibers unit rounding, without buckling phenomenon, can guarantee that recombination process is smooth like this.
(6) pressure channel of Transmission Fibers unit of the present invention be Transmission Fibers unit outer jacket at extrusion time, by the Baltimore groove that mould draws on outer jacket surface, for penetrating in pre-buried optical unit tubes process at Transmission Fibers unit, circulation passage as gases at high pressure or liquid is used, make Transmission Fibers unit be suspended in pre-buried fiber unit tube hub by the gases at high pressure in groove or liquid simultaneously, reduce and penetrate frictional force.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the power cable of pre-buried optical unit tubes of the present invention.
Fig. 2 is the structural representation of Transmission Fibers unit of the present invention.
Attached number in the figure is:
The power cable 1 of pre-buried optical unit tubes, cable core 11, insulated wire cores 11-1, conductor 11-1-1, conductor shield 11-1-2, insulating barrier 11-1-3, insulation screen 11-1-4, metal screen layer 11-1-5, filling 11-2, optical unit tubes 11-3, inner covering 12, armour 13, oversheath 14, Transmission Fibers unit 2, optical fiber 21, cured layer 22, sheath 23, pressure channel 24.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, the pneumatic of the present embodiment is blown into formula optical fiber composite intelligent energy power cable, is made up of the power cable 1 of pre-buried optical unit tubes and Transmission Fibers unit 2; The power cable 1 of pre-buried optical unit tubes is followed successively by cable core 11, inner covering 12, armour 13 and oversheath 14 from the inside to the outside; Cable core 11 comprises three insulated wire cores 11-1 and three and fills 11-2; Insulated wire cores 11-1 is followed successively by conductor 11-1-1, conductor shield 11-1-2, insulating barrier 11-1-3, insulation screen 11-1-4 and metal screen layer 11-1-5 from the inside to the outside; Fill in 11-2 and three optical unit tubes 11-3 are set; Ten pressure channels 24 that Transmission Fibers unit 2 comprises optical fiber 21, cured layer 22, sheath 23 and arranges on sheath 23 surface; Transmission Fibers unit 2 is suspended in the optical unit tubes 11-3 of power cable 1.
The diameter d 2 of filling 11-2 is determined according to following formula:
in formula, R is the radius of cable core 11, and r1 is the radius of insulated wire cores 11.
See Fig. 2, arrange in each Transmission Fibers unit 2 and be not more than 12 optical fiber 21.Optical unit tubes 11-3 is pipe, and internal diameter is not less than 3.5mm, and thickness of pipe wall is 0.7 ~ 1.0mm, the smooth rounding of inside pipe wall, without the thrust being greater than 0.25mm height.The external diameter of Transmission Fibers unit 2 is not more than 3mm, and sheath 23 is axially without the thrust being greater than 0.25mm.Pressure channel 24 is in the distribution of sheath 23 surface uniform, and the degree of depth is 0.03 ~ 0.05mm.
Manufacture method comprises the following steps:
Step one: produce the power cable 1 and the Transmission Fibers unit 2 that obtain pre-buried optical unit tubes respectively; The power cable 1 of pre-buried optical unit tubes is followed successively by cable core 11, inner covering 12, armour 13 and oversheath 14 from the inside to the outside; Cable core 11 comprises at least one insulated wire cores 11-1 and fills 11-2; Fill in 11-2 and at least one optical unit tubes 11-3 is set; The quantity of Transmission Fibers unit 2 is consistent with the quantity of optical unit tubes 11-3, at least one pressure channel 24 comprising optical fiber 21, cured layer 22, sheath 23 and arrange on sheath 23 surface;
Step 2: power cable (1) and the Transmission Fibers unit (2) of pre-buried optical unit tubes step one obtained deliver to erecting bed respectively;
Step 3: the power cable of pre-buried optical unit tubes is required mounting and installation according to laying.
Step 4: Transmission Fibers unit 2 is penetrated optical unit tubes 11-3 one by one, realizes optical fiber compound.Transmission Fibers unit 2 is penetrated the method for optical unit tubes 11-3 for arrange obturator in Transmission Fibers unit 2 one end, sent into by the motive force of gases at high pressure or liquid.Or the method sent into by Transmission Fibers unit 2 in fiber unit pipe 11-3 is by two or one group of guide wheel, the pivoting friction between guide wheel and Transmission Fibers unit 2 is utilized to provide power, utilize gases at high pressure to be suspended in the middle of power cable optical unit tubes by Transmission Fibers unit, reduce the frictional force between Transmission Fibers unit and unit pipes.
The present embodiment mainly changes the complex flow of optical fiber composite cable, is innovated in cable manufacturing enterprise optical fiber compound by original, makes in the on-the-spot compound of cable installation.By the innovation of such complex method, compensate for because cable weight is heavy, mechanical strength is large, and mechanical fiber optic intensity is little, the loss of cable length in the processes such as cable laying installation, commissioning test; Compensate for because the outside diameter of cable is large, electric cable delivery length, by the restriction of dish tool packaging, transport, makes electric power, optical fiber transmission path needs to be connected in series by multi-cable, cause the problem that optical communication decays due to transition joint simultaneously.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. be pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: be made up of the power cable (1) of pre-buried optical unit tubes and Transmission Fibers unit (2); The power cable (1) of described pre-buried optical unit tubes is followed successively by cable core (11), inner covering (12), armour (13) and oversheath (14) from the inside to the outside; Described cable core (11) comprises at least one insulated wire cores (11-1) and fills (11-2); Described insulated wire cores (11-1) is followed successively by conductor (11-1-1), conductor shield (11-1-2), insulating barrier (11-1-3), insulation screen (11-1-4) and metal screen layer (11-1-5) from the inside to the outside; At least one optical unit tubes (11-3) is set in described filling (11-2); The quantity of described Transmission Fibers unit (2) is consistent with the quantity of optical unit tubes (11-3), comprises optical fiber (21), cured layer (22), sheath (23) and sheath (23) surface is provided with pressure channel (24); Described Transmission Fibers unit (2) is suspended in the optical unit tubes (11-3) of power cable (1) in introducing power cable recombination process.
2. be according to claim 1ly pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: described insulated wire cores (11-1) is three, between two tangent setting; Between adjacent two insulated wire cores (11-1), a filling (11-2) is set; Described optical unit tubes (11-3) and Transmission Fibers unit (2) are three.
3. be according to claim 2ly pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: the diameter d 2 of described filling (11-2) is determined according to following formula:
in formula, R is the radius of cable core (11), and r1 is the radius of insulated wire cores (11).
4. be blown into formula optical fiber composite intelligent energy power cable according to pneumatic one of claims 1 to 3 Suo Shu, it is characterized in that: arrange in described each Transmission Fibers unit (2) and be not more than 12 optical fiber (21).
5. be according to claim 4ly pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: described optical unit tubes (11-3) is pipe, internal diameter is not less than 3.5mm, thickness of pipe wall is 0.7 ~ 1.0mm, the smooth rounding of inside pipe wall, without the thrust being greater than 0.25mm height.
6. be according to claim 5ly pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: the external diameter of described Transmission Fibers unit (2) is not more than 3mm, sheath (23) is axially without the thrust being greater than 0.25mm.
7. be according to claim 6ly pneumaticly blown into formula optical fiber composite intelligent energy power cable, it is characterized in that: described pressure channel (24) is in the distribution of sheath (23) surface uniform, and be no less than 8, the degree of depth is 0.03 ~ 0.05mm.
8. the pneumatic manufacture method being blown into formula optical fiber composite intelligent energy power cable as claimed in claim 1, is characterized in that comprising the following steps:
Step one: produce the power cable (1) and the Transmission Fibers unit (2) that obtain pre-buried optical unit tubes respectively; Described power cable (1) is followed successively by cable core (11), inner covering (12), armour (13) and oversheath (14) from the inside to the outside; Described cable core (11) comprises at least one insulated wire cores (11-1) and fills (11-2); At least one optical unit tubes (11-3) is set in described filling (11-2); The quantity of described Transmission Fibers unit (2) is consistent with the quantity of optical unit tubes (11-3), comprises optical fiber (21), cured layer (22), sheath (23) and sheath (23) surface is provided with pressure channel (24);
Step 2: power cable (1) and the Transmission Fibers unit (2) of pre-buried optical unit tubes step one obtained deliver to erecting bed respectively;
Step 3: the power cable (1) of pre-buried optical unit tubes is required mounting and installation according to laying;
Step 4: after the power cable layer, installation of pre-buried optical unit tubes, Transmission Fibers unit (2) is penetrated optical unit tubes (11-3) one by one, realize optical fiber compound.
9. the pneumatic manufacture method being blown into formula optical fiber composite intelligent energy power cable according to claim 8, it is characterized in that: in described step 3, Transmission Fibers unit (2) is penetrated the method for optical unit tubes (11-3) for arrange obturator in Transmission Fibers unit (2) one end, sent into by the motive force of gases at high pressure or liquid.
10. the pneumatic manufacture method being blown into formula optical fiber composite intelligent energy power cable according to claim 8, it is characterized in that: in described step 3, the method sent in fiber unit pipe (11-3) by Transmission Fibers unit (2) is by two or one group of guide wheel, utilizes the pivoting friction between guide wheel and Transmission Fibers unit (2) to provide power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197372.2A CN104810106A (en) | 2015-04-23 | 2015-04-23 | Pneumatic blowing-in optical fiber composite smart energy power cable and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197372.2A CN104810106A (en) | 2015-04-23 | 2015-04-23 | Pneumatic blowing-in optical fiber composite smart energy power cable and production method thereof |
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| CN104810106A true CN104810106A (en) | 2015-07-29 |
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| CN201510197372.2A Pending CN104810106A (en) | 2015-04-23 | 2015-04-23 | Pneumatic blowing-in optical fiber composite smart energy power cable and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105185464A (en) * | 2015-09-28 | 2015-12-23 | 远东电缆有限公司 | Standard wall cable for smart energy motor train unit and production process |
| WO2021181106A2 (en) | 2020-03-11 | 2021-09-16 | Landways Management Limited | Cable system |
| CN113732675A (en) * | 2021-09-17 | 2021-12-03 | 南京威斯顿光纤科技有限公司 | Method and system for pneumatically filling optical fiber |
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Application publication date: 20150729 |