CN106710698B - A kind of preparation method of optical cable for intelligent grid - Google Patents
A kind of preparation method of optical cable for intelligent grid Download PDFInfo
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- CN106710698B CN106710698B CN201610992849.0A CN201610992849A CN106710698B CN 106710698 B CN106710698 B CN 106710698B CN 201610992849 A CN201610992849 A CN 201610992849A CN 106710698 B CN106710698 B CN 106710698B
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- 238000011049 filling Methods 0.000 claims abstract description 38
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- 239000004020 conductor Substances 0.000 claims description 87
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- 239000000835 fiber Substances 0.000 claims description 32
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- 239000013307 optical fiber Substances 0.000 claims description 30
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 22
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- 238000005452 bending Methods 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- -1 Methylsiloxane Chemical class 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 6
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- 238000003780 insertion Methods 0.000 claims 1
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 31
- 238000000034 method Methods 0.000 description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 description 19
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 241000206672 Gelidium Species 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 108010059642 isinglass Proteins 0.000 description 2
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- 241001163600 Bathylaco nigricans Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
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- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Classifications
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/148—Selection of the insulating material therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of preparation method of the optical cable for intelligent grid, on the premise of the hot-face insulation principle of Ceramic silicon rubber is not changed, organic matter rubber therein is removed, and the formula of inorganic powder therein is optimized, so that refractory insulating layer issues the reaction of raw burn knot porcelainization in combustion high temperature, sintering porcelain shell more closely knit, that porosity is lower is obtained, considerably improves the high-temperature insulating quality and fire resistance of the optical cable and its electric power core under combustion high temperature；And outer basalt fibre cloth set soft texture, before filling powder is started, first the free end of outer basalt fibre cloth set is turned up, interior outside is exchanged, mating mold pipe, that length very little is built in mould tube waits to smash pressure space, so smashes pressure pipe and can successfully pass in and out in the mould tube and carries out smashing pressure, smashes and does not have to drawing or rolling again after the completion of pressing, it is time saving and energy saving, simplify production technology, save great amount of cost, in theory optical cable to produce length unrestricted.
Description
Technical field
The present invention relates to intelligent power grid technology field, more particularly, to a kind of preparation side of the optical cable for intelligent grid
Method.
Background technology
Optical cable (Optical power cable, OPC) is organically to combine plain conductor and optical fiber, simultaneously,
Go the same way, with transmission electric energy and the integrated transmission medium of optical information is moved towards, it realizes flow of power, Business Stream, the one of information flow
Bodyization merge, by once setting up, once construct, once put into, while transferring high voltage electric energy transmit voice, data, regard
The information such as frequency, substantially reduce the duration, reduce construction cost, saved resource, have been established for intelligent grid construction solid
Basis.
It is more and more harsh to the fire resistant requirements of the optical cable of intelligent grid with economic development and scientific and technological progress.
For the refractory design of the fiber cores in optical cable, at present, there is that prior art discloses the optical fiber in optical cable
Ceramic silicon rubber layer is set up in the structure of core as flame retardant coating, improves the fire resistance of optical fiber component in optical cable.
For the refractory design of the electric power core in optical cable, it is contemplated that its function is identical with single cable, is used for more
Power Transmission, therefore, when the electric power core in optical cable makees refractory design, it may be referred to fire-resisting cable of the prior art
Fire resisting conceptual design.
The fire resisting conceptual design of current fire-resisting cable mainly has three kinds of forms：Earliest Mica tape fire-resisting cable,
The mineral insulated cable occurred later and the Ceramic silicon rubber fire-resisting cable occurred recently.
Mica tape fire-resisting cable：Flame retardant coating generally forms using the higher fire-resistant isinglass belt of price is wrapped, wrapped speed
Degree is slow, it is wrapped during mica powder easily come off, influence fire resisting effect；Defocused fire-resistant isinglass belt embrittlement is burnt, runs into shake
Easy to fall off during dynamic and spray, fire resisting effect is poor, it is difficult to ensure that power circuit remain in the case of fire it is safe and smooth.
Mineral insulated cable：Mineral insulated cable abbreviation MI cables, conductor, inorganic matter oxidation are made using the copper of high conductivity
Magnesium insulate, and seamless copper pipe makees sheath, if necessary, one layer of plastics outer jacket is extruded outside annealing copper sheath, particular/special requirement without
Cigarette Halogen occasion can add one layer of low smoke and zero halogen sheath outside；Inorganic insulation sheet due to its unique structure and using material
Property so that mineral insulated cable have fire prevention, grease proofing, explosion-proof, waterproof, smokelessly, Halogen, nontoxic, high temperature resistant, corrosion-resistant, resistance to spoke
Penetrate, anti-electromagnetic interference, current-carrying capacity is big, overload capacity is strong, high mechanical strength, small volume, in light weight, long lifespan, ground connection performance it is good,
Easy for installation, the low grade of integrated cost is better than the characteristic of other kind cables；Mineral insulated cable is current safest cable.Ore deposit
Although the structure of thing insulated cable is only simple three layers, all simple more than other fire-resisting cables, manufacture craft is very multiple
Miscellaneous, manufacture difficulty is very high, it is necessary to which special production equipment and production line, early stage, equipment investment was larger, and yield rate and yield are equal
It is relatively low, although including relatively low installed in interior integrated cost, its production cost is more much higher than other fire-resisting cables；It is
A kind of fire-resisting cable of gentrification, the daily household common people do not afford to do.
Ceramic silicon rubber fire-resisting cable：It is to solve present in Mica tape fire-resisting cable and mineral insulated cable
The problem of a kind of novel flame resistant cable for developing recently, its flame retardant coating is made using Ceramic silicon rubber, and it processes work
Skill is：Add sulphur → extrusion → vulcanization, extrusion needs special silicone rubber wire cable extruding machine to complete, and vulcanization is also required to specially
The vulcanizing equipment of door, such as：Hot-air cure stove, microwave vulcanization drying tunnel etc., flame retardant coating processing technology is complicated, low production efficiency.Enter
The improvement of one step, Ceramic silicon rubber and glass fabric are first combined into Ceramic silicon rubber composite band, then as mica tape
It is wrapped like that refractory insulating layer is formed on conductor, to improve production efficiency etc..
The Ceramic silicon rubber layer of shaping is either extruded still around the Ceramic silicon rubber composite band of wrap molding, the two is all
It is organic material because the matrix of above-mentioned Ceramic silicon rubber is silicon rubber, when the ceramic SiClx rubber including Ceramic silicon rubber
After glue runs into flame combustion, the organic material silicon rubber of the inside can degrade or burn, and be obtained after burning by Ceramic silicon rubber
A duricrust being formed of inorganic particle sintering porcelainization, it has certain mechanical strength, continues insulation and refractory protection in it
Conductor normal transmission use.In Ceramic silicon rubber, organic material silicon rubber occupies each with inorganic material particle
Certain space, because organic material silicon rubber is degraded or burns, or become cigarette ash, or become gaseous volatilization, its script exists
The space occupied in Ceramic silicon rubber is just freed out, and remaining inorganic material particle is also without unnecessary ability duplicate removal
The space that this part frees out newly is occupied, therefore, the duricrust obtained after Ceramic silicon rubber sintering is that a kind of holey is hard
Shell, there are a large amount of penetrating grid cavities, due to the presence in these penetrating grid cavities, it is clear that the high-temperature insulating quality of the duricrust
It is certainly not high with fire resistance；For this cable for being used for communicating of fiber cores, its requirement to insulating properties is relatively low, above-mentioned
The high-temperature insulating quality of holey duricrust can meet the normal uses of fiber cores, still, electric power core is used for power Transmission,
Some or high-tension electricity, higher is required to high-temperature insulating quality, the insulating properties of above-mentioned holey duricrust is only capable of exerting oneself in the short time
The strong normal transmission for maintaining conductor uses.
Therefore, one kind how is provided under combustion high temperature, and high-temperature insulating quality and the more preferable optical cable of fire resistance are this areas
The technical problem of technical staff's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the optical cable for intelligent grid, the preparation method is made
Optical cable under combustion high temperature, there is higher high-temperature insulating quality and fire resistance.
To solve above-mentioned technical problem, technical scheme provided by the invention is：
A kind of preparation method of optical cable for intelligent grid, comprises the following steps：
1) copper conductor is taken；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt
Side seam on two length directions of the basalt fiber cloth is combined by single, then removes unnecessary joining edge,
The interior basalt fibre cloth set of hollow tubular is obtained, then by one end on the length direction of interior basalt fibre cloth set from interior profound
Military rock fiber cloth set it is hollow in pass through with cause the interior outside of interior basalt fibre cloth set exchange and cause for suture it is profound
Ensconce in military rock single the interior basalt fibre cloth set it is hollow in, it is stand-by；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt
Side seam on two length directions of the basalt fiber cloth is combined by single, then removes unnecessary joining edge,
The outer basalt fibre cloth set of hollow tubular is obtained, then by one end on the length direction of outer basalt fibre cloth set from outer profound
Military rock fiber cloth set it is hollow in pass through with cause the interior outside of outer basalt fibre cloth set exchange and cause for suture it is profound
Ensconce in military rock single the outer basalt fibre cloth set it is hollow in, it is stand-by；
And the internal diameter size of the control interior basalt fibre cloth set meets that the interior basalt fiber cloth set is tightly placed in institute
State on copper conductor, and control the internal diameter of the outer basalt fibre cloth set to be more than the external diameter of the interior basalt fibre cloth set, and
The size of the knitting eyelet of the outer basalt fibre cloth set and interior basalt fibre cloth set is controlled to be less than the silica flour, silicon
The particle size of limestone flour, kaolin powder and glass dust, to prevent powder from the outer basalt fibre cloth set and interior profound
Spilt in the knitting eyelet of military rock fiber cloth set；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube is taken, and controls the internal diameter of the mould tube and the external diameter of the outer basalt fibre cloth set
It is identical, and the length of the mould tube is 15cm, and screw thread is provided with the lower end outer circumference surface of the mould tube, and the mould
Tool pipe is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube, and institute
State that the external diameter of initial skirt is identical with the external diameter of the mould tube, and the length of the initial skirt is 5cm, and described initially draw
Screw thread is provided with the upper end outer circumferential face of pipe, and the lower end of the initial skirt is provided with for fastening the outer basalt fibre
Tie up the fastening end cap of cloth set, interior basalt fibre cloth set and copper conductor；
2) the interior basalt fibre cloth set in step 1) is set on the copper conductor in step 1)；
Then the outer basalt fibre cloth set in step 1) is set in into the interior basalt fiber cloth to put；
Then the outer basalt fibre cloth set being set-located, interior basalt fibre cloth set and copper conductor are inserted
In the mould tube, it is inserted into the initial skirt, most the outer basalt fibre cloth set, interior basalt fibre cloth set at last
And the fastening end that copper conductor is fixed on the initial skirt covers, the upper end of the initial skirt is then coordinated by nut
Screw thread initial skirt is threadedly coupled with mould tube with the screw thread of the mould tube lower end；
Then the free end on the length direction of outer basalt fibre cloth set is turned up, exchanges its interior outside, it is outer always
Turn over until the outer turn-line that puts of outer basalt fiber cloth is close to the upper edge of the mould tube；
The part exposed outside the mould tube of the copper conductor, the copper are supported using a series of flat idler
The horizontal part of conductor is connected by a bending section with inserting the part in the mould tube；
The copper conductor for ensuring to insert in mould tube using guide roller is always positioned on the longitudinal center line of the mould tube；
3) to the mould tube and the filling silica flour being well mixed, wollastonite in powder, kaolin powder, glass in initial skirt
Powder and dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube and initial skirt, wollastonite in powder, kaolin powder, glass dust
And dimethyl silicone polymer compacting, control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
Filling amount with cause be compacted rear mold pipe in upper edge 4cm~5cm of the powder compact away from mould tube；
Then screw on nut disconnects the threaded connection of mould tube and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt moves straight down, drive the outer turn-line of outer basalt fibre cloth set gradually upward
It is mobile；
4) into the mould tube again filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust and
Dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube, wollastonite in powder, kaolin powder, glass dust and poly- diformazan
Radical siloxane is compacted, control silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer filling amount with
So that upper edge 4cm~5cm of the powder compact away from mould tube in compacting rear mold pipe；
Then 5cm is moved using the direction for batching the initial skirt of machine travel to remote mould tube；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor with refractory insulating layer pulled out from mould tube meets bending radius, carry
The copper conductor of refractory insulating layer is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer produced closes on the free end of copper conductor, stop filling powder, it is exhausted then will to carry fire resisting
The copper conductor of edge layer exits from mould tube along the pulling motion direction of script copper conductor, then removes fastening end cap and initial
Skirt, then with Ceramic silicon rubber composite band in the wrapped making refractory insulating layer in the both ends without powder compact of copper conductor,
And control by outer basalt fibre cloth set and interior basalt fibre cloth set it is wrapped Ceramic silicon rubber composite band and copper conductor it
Between, so far obtain electric power core；
6) take tight tube fiber, strengthen steel core, optical fiber filler and binder, then with optical fiber binder by described in
Tight tube fiber, strengthen steel core and optical fiber and wrapped up with filler into a branch of, then on the outer surface of the optical fiber binder
Ceramic silicon rubber layer is extruded, obtains fiber cores；
Then the fiber cores, electric power core and cable core filler are wrapped up into a branch of with cable core binder, then
Inner restrictive coating is extruded on outer surface of the cable core with binder；
Then water blocking layer and external sheath layer are extruded successively from inside to outside in the outer surface of inner restrictive coating, finally gives photoelectricity
Cable.
Preferably, the water blocking layer is two-sided waterstop with overlapping wrapped in the outer surface of the inner restrictive coating around packet mode
Form.
Preferably, the inner restrictive coating is polyvinyl chloride material.
Preferably, the external sheath layer is low smoke, zero halogen polyolefin flame retardant jacket layer.
Compared with prior art, the application first provides a kind of preparation method of the optical cable for intelligent grid, the system
Preparation Method with reference to the magnesia automatic filling method of mineral insulated cable, but not fully identical with magnesia automatic filling method,
But powder sort is different, wraps up the wrappage of powder difference and because wrap up powder is soft outer basalt fiber cloth
The part steps in production technology caused by set are different；
The principle of Ceramic silicon rubber layer and the hot-face insulation of Ceramic silicon rubber composite band is made full use of, is not being changed
On the premise of the hot-face insulation principle, the organic matter rubber in Ceramic silicon rubber is removed, and by Ceramic silicon rubber
The formula of inorganic powder optimizes so that refractory insulating layer issues the reaction of raw burn knot porcelainization in combustion high temperature, and what is obtained is one
Individual sintering porcelain shell more closely knit than powder compact, porosity is lower, one than traditional ceramics SiClx rubber layer or ceramic SiClx rubber
The sintering porcelain shell that obtained holey duricrust is more closely knit, porosity is lower after the burning of glue composite band, considerably improves the electricity
The high-temperature insulating quality and fire resistance of power core and optical cable under combustion high temperature；
Free end on the length direction of outer basalt fibre cloth set is turned up, exchanges its interior outside, is turned up always straight
To the outer turn-line that outer basalt fiber cloth is put close to the upper edge of the mould tube, mating mold pipe, sought in mould tube
That produces length very little waits to smash pressure space, so smashes pressure pipe or similar smash pressure device and can successfully pass in and out the mould
Carry out smashing pressure in pipe, thoroughly solve in the magnesia powder automatic filling method of above-mentioned mineral insulated cable due to amount of deflection flexural deformation
And the problem of can not processing, because copper conductor now used is the copper conductor of target thickness, outside outer basalt fibre cloth set
Footpath is the external diameter of target refractory insulating layer, and electric power core does not have to drawing or rolling again after the completion of smashing pressure, can produce in theory
The length of electric power core and optical cable is unrestricted, time saving and energy saving, simplifies production technology, saves great amount of cost, improves production
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of optical cable provided in an embodiment of the present invention；
Fig. 2 is the structural representation of fiber cores in Fig. 1；
Fig. 3 is the structural representation of electric power core in Fig. 1；
Fig. 4 is the principle schematic of the preparation method of electric power core provided in an embodiment of the present invention.
In figure：1 copper conductor, 2 refractory insulating layers, basalt fibre cloth set in 201,202 powder compacts, 203 outer basalt
Fiber cloth set, 204 outer turn-lines, 3 inner restrictive coatings, 4 water blocking layers, 5 external sheath layers, 6 mould tubes, 7 cable core binders, 8 ceramics
SiClx rubber layer, 9 optical fiber binders, 10 tight set pipes, 11 optical fiber, 12 optical fiber fillers, 13 cable core fillers, 14 strengthen
Steel core.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " axial direction ", " radial direction ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " on ", " under ", "front", "rear", "left", "right", " top ", " bottom ", " interior ", " outer ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Invent and simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
Reference picture 1~Fig. 4, Fig. 1 are the structural representation of optical cable provided in an embodiment of the present invention；Fig. 2 is optical fiber in Fig. 1
The structural representation of core；Fig. 3 is the structural representation of electric power core in Fig. 1；Fig. 4 is the system of electric power core provided in an embodiment of the present invention
The principle schematic of Preparation Method.
This application provides a kind of optical cable for intelligent grid, including wrap up successively from inside to outside cable core, block water
Layer 4 and external sheath layer 5；
The cable core includes fiber cores, electric power core, cable core filler 13, cable core binder 7 and inner restrictive coating 3；
The fiber cores, electric power core and cable core filler 13 are wrapped up into a branch of, the interior shield by cable core binder 7
Jacket layer 3 is coated on the outer surface of the cable core binder 7；
The fiber cores include tight tube fiber, strengthen steel core 14, optical fiber filler 12, optical fiber binder 9 and pottery
Porcelain SiClx rubber layer 8；
The tight tube fiber, reinforcement steel core 14 and optical fiber filler 12 wrap up into a branch of, institute by optical fiber binder 9
Ceramic silicon rubber layer 8 is stated to be coated on the outer surface of the optical fiber binder 9；
The tight tube fiber includes optical fiber 11, optical fiber filler 12 and tight set pipe 10, the optical fiber 11 and optical fiber
It is rolled into filler 12 by tight set pipe 10 a branch of；
The electric power core includes the copper conductor 1 and refractory insulating layer 2 wrapped up successively from inside to outside；
The refractory insulating layer 2 includes two ends for being located at the length direction both ends of copper conductor 1 respectively and one
Pars intermedia between two ends；
The end of the refractory insulating layer 2 is Ceramic silicon rubber composite band, and the Ceramic silicon rubber composite band is wrapped
On the both ends of the copper conductor 1；
The pars intermedia of the refractory insulating layer 2 includes interior basalt fibre cloth set 201, outer basalt fibre cloth set 203, stone
Ying Fen, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer；
The interior basalt fibre cloth set 201 and outer basalt fibre cloth set 203 are sequentially sleeved at described from inside to outside
On copper conductor 1, and the internal diameter of the outer basalt fibre cloth set 203 is more than the external diameter of the interior basalt fibre cloth set 201, with
One is formed between the interior basalt fibre cloth set 201 and outer basalt fibre cloth set 203 to be used to store silica flour, silicon
The cavity of limestone flour, kaolin powder and glass dust, and the outer basalt fibre cloth set 203 and interior basalt fibre cloth set
The size of 201 knitting eyelet is less than the particle size of the silica flour, wollastonite in powder, kaolin powder and glass dust, to prevent
Only powder is spilt from the knitting eyelet of the outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201；
Compacting exists after the silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed
In cavity between the outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201；
The Ceramic silicon rubber composite band is by the outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201
Both ends winding compression be sealed between Ceramic silicon rubber composite band and copper conductor 1.
In one embodiment of the invention, the water blocking layer 4 is two-sided waterstop with overlapping wrapped in institute around packet mode
The outer surface for stating inner restrictive coating 3 is formed.
In one embodiment of the invention, the inner restrictive coating 3 is polyvinyl chloride material.
In one embodiment of the invention, the external sheath layer 5 is low smoke, zero halogen polyolefin flame retardant jacket layer.
This application provides a kind of optical cable for intelligent grid, including wrap up successively from inside to outside cable core, block water
Layer 4 and external sheath layer 5；The cable core includes fiber cores, electric power core, cable core filler 13, cable core binder 7 and interior
Restrictive coating 3；The electric power core includes the copper conductor 1 and refractory insulating layer 2 wrapped up successively from inside to outside；The refractory insulating layer
2 include two pars intermedias between the end and two ends at the length direction both ends of copper conductor 1 respectively；Institute
The end for stating refractory insulating layer 2 is Ceramic silicon rubber composite band, and the Ceramic silicon rubber composite band is wrapped to be led in the copper
On the both ends of body 1；The pars intermedia of the refractory insulating layer 2 includes interior basalt fibre cloth set 201, outer basalt fibre cloth set
203rd, silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer；The silica flour, wollastonite in powder, height
After ridge soil powder, glass dust and dimethyl silicone polymer are well mixed compacting the outer basalt fibre cloth set 203 with it is interior profound
In closed cavity between military rock fiber cloth set 201；
Preferably, silica flour be 50 parts by weight, wollastonite in powder be 6 parts by weight (а-CaSiO3 types, through methyl alkoxy silane
Coupling agent treatment), kaolin powder be 45 parts by weight (calcined kaolin, being handled through amino silicane coupling agent), glass be 5 weight
Part, and dimethyl silicone polymer is 3 parts by weight；
10MPa~20MPa pressure is used after the silica flour, wollastonite in powder, kaolin powder and glass dust are well mixed
It is compacted in the closed cavity between the outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201；
Due to being basalt fibre material, its tension is strong for outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201
The mechanical mechanics properties such as degree are fine, will not be outer basalt fibre cloth set 203 under above-mentioned 10MPa~20MPa compaction pressure
Burst, ensure that four kinds of powder in cavity are in compacted state all the time before baked wheaten cake so that refractory insulating layer 2 has preferable
Insulating properties, will not be because of being hole between powder and conductive, and due to being basalt fibre material, its fusing point is very high and high
Warm nature can will not be burnt to break or burn and be leaked, ensure that four in cavity kinds of powder begin during baked wheaten cake under fire burning very well
Compacted state is in eventually, and controls the particle diameter of four kinds of powder to be more than the knitting eyelet of outer basalt fibre cloth set 203 so that powder
It is unlikely to spill from the knitting eyelet of outer basalt fibre cloth set；
Dimethyl silicone polymer ensure that above-mentioned four kinds of powder in process, in installation process and the later stage makes
It will not absorb water and make moist during, electrical insulating property declines after avoiding the powder moisture absorption of compacting；
When the refractory insulating layer 2, which runs into high temperature, to be burnt, silica flour and wollastonite in powder, silica flour and kaolin in cavity
It can occur to sinter porcelainization reaction between powder, in wollastonite in powder and kaolin powder, these form eutectic into the edge of porcelain powder and mixed
Compound, these eutectic mixtures play bridge joint between quartz particles and wollastonite in powder and kaolin powder particles, in fire
Solidify at a temperature of calamity, due to above-mentioned four kinds of powder be compacted before high temperature sintering outer basalt fibre cloth set 203 with it is interior
In closed cavity between basalt fibre cloth set 201, four kinds of powder each occupy respective space, one electric insulation of composition
Powder compact, physical size consumption does not occur for four kinds of powder in high-temperature sintering process, still occupies respective space originally,
Along with powder compact also has certain shrinkage factor in sintering process, therefore, it is one than powder pressure to sinter obtain after porcelain
The sintering porcelain shell that base is more closely knit, porosity is lower；
The sintering porcelainization that glass can be reduced as fluxing agent between silica flour and wollastonite in powder, silica flour and kaolin powder is anti-
The temperature that should occur so that the refractory insulating layer 2 can occur sintering porcelain and protect the copper in it to lead at a lower temperature
Body 1, the high temperature of 1000 DEG C and the above is produced unlike traditional Ceramic silicon rubber composite band need to wait until that fire disaster flame fiercely burns
Porcelainization reaction can just occur so that the refractory insulating layer 2 not only can be with resistance to small-sized fire but also can be with resistance to large-sized fire；And glass
Silica flour, wollastonite in powder and kaolin powder can be connected into a compacting body, although this is closely knit by fusing point than relatively low after fusing
Body is not also porcelain compound, but the compacting body can also be protected to the copper conductor 1 in the Initial Stage of Fire of low temperature；
Because the sintering porcelain shell obtained after sintering porcelain is more closely knit than powder compact 202, porosity is lower, therefore, it is high
Warm insulating properties and fire resistance are higher than the high-temperature insulating quality and fire resistance of powder compact 202；With traditional ceramics SiClx rubber layer
Or obtained holey duricrust is compared after the burning of Ceramic silicon rubber composite band, it is clear that above-mentioned silica flour by compression consolidation,
Sintering porcelain shell that wollastonite in powder, kaolin powder and glass powder sintering porcelain obtain is more closely knit, porosity is lower so that the burning
Tie the high-temperature insulating quality of porcelain shell and fire resistance is significantly higher than the high-temperature insulating quality and fire resistance of above-mentioned holey shell, so as to
Preferably the normal transmission of the copper conductor 1 of protection inner side uses for a long time.
To sum up, this application provides a kind of optical cable for intelligent grid, make full use of Ceramic silicon rubber layer and
The principle of the hot-face insulation of Ceramic silicon rubber composite band, on the premise of the hot-face insulation principle is not changed, by ceramic SiClx
Organic matter rubber in rubber removes, and the formula of the inorganic powder in Ceramic silicon rubber is optimized so that the photoelectricity
The refractory insulating layer 2 of electric power core in cable issues the reaction of raw burn knot porcelainization in combustion high temperature, and what is obtained is one and compares powder compact
The sintering porcelain shell that 202 is more closely knit, porosity is lower, what is obtained is one than traditional ceramics SiClx rubber layer or Ceramic silicon rubber
The sintering porcelain shell that obtained holey duricrust is more closely knit, porosity is lower after composite band burning, considerably improves the electric power
The high-temperature insulating quality and fire resistance of core and optical cable under combustion high temperature.
Present invention also offers a kind of preparation method of above-mentioned optical cable for intelligent grid, comprise the following steps：
1) copper conductor 1 is taken；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt
Side seam on two length directions of the basalt fiber cloth is combined by single, then removes unnecessary joining edge,
The interior basalt fibre cloth set 201 of hollow tubular is obtained, then by one end on the length direction of interior basalt fibre cloth set 201
From interior basalt fibre cloth set 201 it is hollow in pass through with cause the interior outside of interior basalt fibre cloth set 201 exchange and cause
For ensconced in the basalt fibre line of suture the interior basalt fibre cloth set 201 it is hollow in, it is stand-by；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt
Side seam on two length directions of the basalt fiber cloth is combined by single, then removes unnecessary joining edge,
The outer basalt fibre cloth set 203 of hollow tubular is obtained, then by one end on the length direction of outer basalt fibre cloth set 203
From outer basalt fibre cloth set 203 it is hollow in pass through with cause the interior outside of outer basalt fibre cloth set 203 exchange and cause
For ensconced in the basalt fibre line of suture the outer basalt fibre cloth set 203 it is hollow in, it is stand-by；
And the internal diameter size of the control interior basalt fibre cloth set 201 meets that the interior basalt fibre cloth set 201 is tight
It is enclosed on the copper conductor 1, and controls the internal diameter of the outer basalt fibre cloth set 203 to be more than the interior basalt fibre cloth set
201 external diameter, and control the big of the knitting eyelet of the outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201
It is less than the particle size of the silica flour, wollastonite in powder, kaolin powder and glass dust, to prevent powder from the outer Black Warrior
Spilt in the knitting eyelet of rock fiber cloth set 203 and interior basalt fibre cloth set 201；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube 6 is taken, and controls the internal diameter of the mould tube 6 and the outer basalt fibre cloth set 203
External diameter it is identical, and the length of the mould tube 6 is 15cm, and is provided with screw thread on the lower end outer circumference surface of the mould tube 6,
And the mould tube 6 is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube 6, and institute
State that the external diameter of initial skirt is identical with the external diameter of the mould tube 6, and the length of the initial skirt be 5cm, and it is described initially
Screw thread is provided with the upper end outer circumferential face of skirt, and the lower end of the initial skirt is provided with for fastening the outer basalt
The fastening end cap of fiber cloth set 203, interior basalt fibre cloth set 201 and copper conductor 1；
2) the interior basalt fibre cloth set 201 in step 1) is set on the copper conductor 1 in step 1)；
Then the outer basalt fibre cloth set 203 in step 1) is set in the interior basalt fibre cloth set 201
On；
Then the outer basalt fibre cloth set 203, interior basalt fibre cloth set 201 and the copper that are set-located are led
Body 1 is inserted in the mould tube 6, is inserted into the initial skirt, most the outer basalt fibre cloth set 203, interior profound at last
The fastening end that military rock fiber cloth set 201 and copper conductor 1 are fixed on the initial skirt covers, and then coordinates institute by nut
Initial skirt is threadedly coupled by the screw thread for stating the upper end of initial skirt with the screw thread of the lower end of mould tube 6 with mould tube 6；
Then the free end on the length direction of outer basalt fibre cloth set 203 is turned up, exchanges its interior outside, always
Turn up until the outer turn-line 204 in outer basalt fibre cloth set 203 is close to the upper edge of the mould tube 6；
The part exposed outside the mould tube 6 of the copper conductor 1 is supported using a series of flat idler, it is described
The horizontal part of copper conductor 1 is connected by a bending section with inserting the part in the mould tube 6；
The copper conductor 1 for ensuring to insert in mould tube 6 using guide roller is always positioned at the longitudinal center line of the mould tube 6
On；
3) to the mould tube 6 and the filling silica flour being well mixed, wollastonite in powder, kaolin powder, glass in initial skirt
Glass powder and dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube 6 and initial skirt, wollastonite in powder, kaolin powder, glass
Powder and dimethyl silicone polymer compacting, control silica flour, wollastonite in powder, kaolin powder, glass dust and polydimethylsiloxanes
The filling amount of alkane with the powder compact 202 that to be compacted in rear mold pipe 6 away from the upper edge of mould tube 6 4cm~5cm；
Then screw on nut disconnects the threaded connection of mould tube 6 and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt moves straight down, drive the outer turn-line 204 of outer basalt fibre cloth set 203 by
Gradually move up；
4) into the mould tube 6 again filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust with
And dimethyl silicone polymer；
Then use and smash pressure pipe by the silica flour in the mould tube 6, wollastonite in powder, kaolin powder, glass dust and poly- two
Methylsiloxane is compacted, and controls the filling amount of silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
With the powder compact 202 that to be compacted in rear mold pipe 6 away from the upper edge of mould tube 6 4cm~5cm；
Then 5cm is moved using the direction for batching the initial skirt of machine travel to remote mould tube 6；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor 1 with refractory insulating layer 2 pulled out from mould tube 6 meets bending radius,
Copper conductor 1 with refractory insulating layer 2 is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer 2 produced closes on the free end of copper conductor 1, stop filling powder, then will carry fire resisting
The copper conductor 1 of insulating barrier 2 exits from mould tube 6 along the pulling motion direction of script copper conductor 1, then remove fastening end cap with
And initial skirt, it is then resistance in the wrapped making in the both ends without powder compact 202 of copper conductor 1 with Ceramic silicon rubber composite band
Fiery insulating barrier 2, and control outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201 is wrapped in Ceramic silicon rubber
Between composite band and copper conductor 1, electric power core is so far obtained；
6) take tight tube fiber, strengthen steel core 14, optical fiber filler 12 and optical fiber binder 9, then used with optical fiber
Binder 9 by the tight tube fiber, strengthen steel core 14 and optical fiber filler 12 and wrap up into a branch of, then used in the optical fiber
Ceramic silicon rubber layer 8 is extruded on the outer surface of binder 9, obtains fiber cores；
Then the fiber cores, electric power core and cable core filler 13 are wrapped up into cable core binder 7 it is a branch of, so
Afterwards in the cable core with extruding inner restrictive coating 3 on the outer surface of binder 7；
Then water blocking layer 4 and external sheath layer 5 are extruded successively from inside to outside in the outer surface of inner restrictive coating 3, finally given
Optical cable.
The preparation method of mineral insulated cable of the prior art is mainly three kinds：The prefabricated Magnesium oxide knob insulator most started
Method, later magnesia powder automatic filling method and newest copper strips indulge bag argon arc welding welding continuous rolling method.The application provides
The preparation method of electric power core with reference to the magnesia automatic filling method of mineral insulated cable, the two different place is powder
Species is different, wraps up the wrappage of powder difference and by wrap up powder is the soft outer institute of basalt fibre cloth set 203
Part steps in caused production technology are different, the substantially phase of the other steps and corresponding technological parameter in production technology
Together, the method and apparatus of not detailed description are referred to mineral insulated cable in the preparation method for the electric power core that the application provides
Magnesia automatic filling method, obtains technical inspiration.
In the preparation method of the application, why with silica flour, wollastonite in powder, kaolin powder and glass dust, rather than
Magnesia powder is used as in mineral insulated cable, be because：1. the principle of fire resisting both is different, is quartz in the application
Powder, wollastonite in powder, kaolin powder and glass dust run into the high temperature of flame there occurs sintering porcelainization reaction, anti-using porcelainization is sintered
The product answered deprotects copper conductor 1 in it from burning, and the sintering porcelain shell obtained after sintering is than the powder compact before sintering
202 is finer and close, thus sinter after obtain sintering porcelain shell than the powder compact 202 before sintering electrical insulating property and fire resistance more
It is good, and magnesia powder is that sintering reaction does not occur when running into the high temperature of flame, without physics occurs before burning and after burning
Chemical change, it resists the high-temp combustion of flame with the high-melting-point (2852 DEG C) of oneself entirely；2. the magnesia powder easily moisture absorption, leads
Cause its electrical insulating property degradation after the moisture absorption, even the moistureproof organic matter of blending, moisture absorption phenomenon it is also obvious that cause processing,
Transport and storage cost are very high.
In the preparation method of the application, why with outer basalt fibre cloth set 203 wrap up powder compact 202, rather than
Copper pipe is used as in mineral insulated cable, be because：If a copper pipe has the length isometric with target power core, example
Such as hundreds of meters or a few kms, amount of deflection flexural deformation will naturally occurs in it, and being now impossible be with target external diameter
Copper conductor 1 to remain that concentric state inserts the copper pipe, powder filling below compacting is in hundreds of meters or a few kms
It is even more to realize under length, smash pressure device just can not smoothly move between copper pipe and copper conductor 1 at all, run into amount of deflection bending
It will be stuck, so, three kinds of preparation methods of existing mineral insulated cable, it is first with a very short but thicker copper entirely
A cable intermediate products are made with the equally very short but thicker copper pipe of unification root in conductor 1, then mechanical pull or continuously roll again
System, rolls thin elongated, just obtains the mineral insulated cable of target external diameter size and length, such as：Magnesia powder automatic filling method
In, the copper pipe most started only has 9 meters, assembles rear drawing, most long also with regard to that can reach 700 meters, in this way, it is exhausted also to have led to mineral
The length of edge cable will not be very long；
And in the present invention, the outer soft texture of basalt fibre cloth set 203 can turn up, first will be outer profound before beginning is filling
Free end on the length direction of military rock fiber cloth set 203 is turned up, and interior outside is exchanged, and is turned up always until outer basalt fiber cloth
Outer turn-line 204 on set 203 is close to the upper edge of the mould tube 6, and now, can contain powder only has in mould tube 6
The less space of this length, smash pressure pipe or it is similar smash pressure device can successfully pass in and out it is smaller in the mould tube 6
Space, smash pressure pipe and be often compacted once, then lift, then initial skirt hauls the powder compact being compacted in mould tube 6
202, to outgoing 5cm, now there remains general 5cm or so powder compact 202, as the pad for smashing pressure next time in mould tube 6
Bottom, powder compact 202 in mould tube 6 is to during outgoing, the outer turn-line 204 in outer basalt fibre cloth set 203
Also 5cm can be moved up in the presence of the upper edge of mould tube 6, it is next to vacate a space wait in such mould tube 6 again
Secondary powder filling and pressure is smash, so repeated according to filling powder-smash the initial skirt movement 5cm of press-powder end-traction, therefore reason
Produce that length is unrestricted by upper electric power core, also result in the application offer optical cable to produce length unrestricted.
In the application, outer basalt fibre cloth set 203 is with interior basalt fibre cloth set 201 due to being basalt fibre material
The mechanical mechanics property such as matter, its tensile strength is fine, than the more resistance to drawing of copper sheath that magnesia powder is wrapped up in mineral insulated cable
With pressure-resistant, outer basalt fibre cloth set 203 will not be burst under above-mentioned 10MPa~20MPa compaction pressure, ensure that cavity
In four kinds of powder be in compacted state all the time before baked wheaten cake so that refractory insulating layer 2 has preferable insulating properties, will not be because of
It is the hole between powder and conductive, and due to being basalt fibre material, its fusing point is very high and high-temperature behavior is fine, compares ore deposit
The more resistance to baked wheaten cake of copper sheath of magnesia powder is wrapped up in thing insulated cable, broken or burning will not be burnt under fire burning and is leaked, is ensured
Four kinds of powder in cavity are in compacted state all the time during baked wheaten cake, and control the particle diameter of four kinds of powder to be more than the outer Black Warrior
The knitting eyelet of rock fiber cloth set 203 so that powder is unlikely to spill from the knitting eyelet of outer basalt fibre cloth set 203.
In the application, the effect of mould tube 6 is that the effect of mould is served as during press-powder end is smash, if without mould
Pipe 6, because the outer quality of basalt fibre cloth set 203 is softer, it can deform during pressure is smash, and smash whole copper after the completion of pressure
The thickness of powder compact 202 on the circumferential surface of conductor 1 will be uneven consistent.
In the application, initial skirt functions as a pressure-bearing device for most starting to smash pressure for the first time, outer basalt
The lower end of fiber cloth set 203 and interior basalt fibre cloth set 201 is opening, if without initial skirt, first time filling powder
End, powder will all be missed from following outlet, and for this, the application is provided with initial skirt, blocks outer basalt fibre cloth set
The lower ending opening in the space between 203 and interior basalt fibre cloth set 201, for accepting filling powder, it is also used for smashing pressure
Pipe smashes the lower bolster of pressure for the first time；Its another effect is to cover tightly admittedly described outer basalt fiber cloth using fastening end thereon
Set 203, interior basalt fibre cloth set 201 and copper conductor 1, it is preferred that outer basalt fibre cloth set 203 and interior basalt cloth
Set only both ends are fastened on fastening end and covered, and remainder keeps internal diameter and external diameter constant, in order to avoid influence to smash the powder obtained after pressure
The uniformity of thickness on the circumferential surface of last pressed compact 202, then, after the completion of pressure is smash in mould tube 6, initial skirt can also be made
For a drawing head, haul the copper conductor 1 with powder compact 202 and be moved rearwards.
In the preparation method of the application, maximum innovative point is exactly by the length direction of outer basalt fibre cloth set 203
Free end turn up, make its interior outside exchange, turn up always until outer basalt fibre cloth set 203 on outer turn-line 204 connect
The upper edge of the nearly mould tube 6, mating mold pipe 6, that length very little is built in mould tube 6 waits to smash pressure space
(smash pressure for the first time and be about 10cm, smash pressure every time later and be about 5cm), so smashes pressure pipe or similar pressure device of smashing can be with
Successfully pass in and out and carry out smashing pressure in the mould tube 6, the magnesia powder automatic filling method for thoroughly solving above-mentioned mineral insulated cable
In the problem of can not being processed due to amount of deflection flexural deformation, because copper conductor 1 now used is the copper conductor 1 of target thickness,
The external diameter of outer basalt fibre cloth set 203 is the external diameter of target refractory insulating layer 2, smashes and does not have to drawing again after the completion of pressing or roll
System, it is time saving and energy saving, save great amount of cost.
After pressure certain length is smash, it is not horizontal by the copper conductor 1 that powder compact 202 wraps up by a series of level
Carrying roller supports (i.e. the copper conductor 1 of the upstream of mould tube 6 is horizontal), is also in by the copper conductor 1 that powder compact 202 wraps up
Horizontality supports (i.e. the copper conductor 1 in the downstream of mould tube 6 is horizontal) by a series of flat idler, and mould tube 6 begins
Eventually for vertically to, in this way, in terms of the length direction of whole copper conductor 1, just constitute a class zigzag, an occupancy level space,
Vertical space is prevented take up, it is convenient to build factory building and location production unit.
Since it is filling powder in the basalt fibre cloth set being all open to both ends, it is necessary in outer basalt fibre cloth set
203 both ends carry out sealing treatment, and also having led to the both ends of copper conductor 1 can not be wrapped up by powder compact 202：Just
The presence of beginning skirt causes one end of copper conductor 1 can not be wrapped up by powder compact 202, and when the refractory insulating layer produced
2 when closing on the free end of copper conductor 1, also inconvenient progress powder filling and pressure is smash, therefore, in the application, when the fire resisting produced is exhausted
When edge layer 2 closes on the free end of copper conductor 1, stop filling powder, then by the copper conductor 1 with refractory insulating layer 2 from mould
Exited in pipe 6 along the pulling motion direction of script copper conductor 1, then remove fastening end cap and initial skirt, then with ceramics
SiClx rubber composite belt is controlled by outside in the wrapped making refractory insulating layer 2 in the both ends without powder compact 202 of copper conductor 1
Basalt fibre cloth set 203 and interior basalt fibre cloth set 201 are wrapped between Ceramic silicon rubber composite band and copper conductor 1,
I.e. using the winding of Ceramic silicon rubber composite band by the two of outer basalt fibre cloth set 203 and interior basalt fibre cloth set 201
Side pressure tightening seal is between Ceramic silicon rubber composite band and copper conductor 1.
To sum up, the application first provides a kind of optical cable for intelligent grid, make full use of Ceramic silicon rubber layer with
And the principle of the hot-face insulation of Ceramic silicon rubber composite band, on the premise of the hot-face insulation principle is not changed, by ceramic
Organic matter rubber in silicon rubber removes, and the formula of the inorganic powder in Ceramic silicon rubber is optimized so that fire resisting
Insulating barrier 2 issues the reaction of raw burn knot porcelainization in combustion high temperature, obtain be one more closely knit than powder compact 202, porosity more
Low sintering porcelain shell, a holey than being obtained after traditional ceramics SiClx rubber layer or the burning of Ceramic silicon rubber composite band
The sintering porcelain shell that duricrust is more closely knit, porosity is lower, the electric power core and optical cable are considerably improved under combustion high temperature
High-temperature insulating quality and fire resistance.Further, present invention also provides the preparation method of the above-mentioned optical cable for intelligent grid,
The preparation method with reference to the magnesia automatic filling method of mineral insulated cable, but with magnesia automatic filling method not fully phase
Together, but powder sort is different, wraps up the wrappage of powder difference and because wrap up powder is that soft outer basalt is fine
The part steps tieed up in the production technology caused by cloth set 203 are different so that electric power core does not have to drawing or rolling again, in theory
The electric power core and the length of optical cable that can be produced are unrestricted, time saving and energy saving, save cost, improve production capacity.
The method and apparatus of the not detailed description of the present invention are prior art, are repeated no more.
Specific embodiment used herein is set forth to the principle and embodiment of the present invention, above example
Illustrate to be only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the common skill for the art
For art personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these change
Enter and modify to also fall into the protection domain of the claims in the present invention.
Claims (3)
1. the preparation method of a kind of optical cable for intelligent grid, it is characterised in that comprise the following steps：
1) copper conductor is taken；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt fibre
Side seam on two length directions of the basalt fiber cloth is combined by line, is then removed unnecessary joining edge, is obtained
The interior basalt fibre cloth set of hollow tubular, then by one end on the length direction of interior basalt fibre cloth set from interior basalt
Fiber cloth set it is hollow in pass through with cause the interior outside of interior basalt fibre cloth set exchange and cause for suture basalt
Ensconce in single the interior basalt fibre cloth set it is hollow in, it is stand-by；
Take the basalt fiber cloth of one piece of strip, then along its length on center line fold, then use basalt fibre
Side seam on two length directions of the basalt fiber cloth is combined by line, is then removed unnecessary joining edge, is obtained
The outer basalt fibre cloth set of hollow tubular, then by one end on the length direction of outer basalt fibre cloth set from outer basalt
Fiber cloth set it is hollow in pass through with cause the interior outside of outer basalt fibre cloth set exchange and cause for suture basalt
Ensconce in single the outer basalt fibre cloth set it is hollow in, it is stand-by；
And the internal diameter size of the control interior basalt fibre cloth set meets that the interior basalt fiber cloth set is tightly placed in the copper
On conductor, and control the internal diameter of the outer basalt fibre cloth set to be more than the external diameter of the interior basalt fibre cloth set, and control
The size of the knitting eyelet of the outer basalt fibre cloth set and interior basalt fibre cloth set be less than silica flour, wollastonite in powder,
The particle size of kaolin powder and glass dust, to prevent powder from the outer basalt fibre cloth set and interior basalt fibre
Spilt in the knitting eyelet of cloth set；
Silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer are well mixed, it is stand-by；
A hollow mould tube is taken, and controls the internal diameter and the external diameter phase of the outer basalt fibre cloth set of the mould tube
Together, and the length of the mould tube is 15cm, and screw thread is provided with the lower end outer circumference surface of the mould tube, and the mould
Pipe is in vertically to being fixed in frame；
A hollow initial skirt is taken, and the internal diameter of the initial skirt is identical with the internal diameter of the mould tube, and it is described first
The external diameter of beginning skirt is identical with the external diameter of the mould tube, and the length of the initial skirt be 5cm, and the initially skirt
Screw thread is provided with upper end outer circumferential face, and the lower end of the initial skirt is provided with for fastening the outer basalt fiber cloth
The fastening end cap of set, interior basalt fibre cloth set and copper conductor；
2) the interior basalt fibre cloth set in step 1) is set on the copper conductor in step 1)；
Then the outer basalt fibre cloth set in step 1) is set in into the interior basalt fiber cloth to put；
Then by described in the insertion of the outer basalt fibre cloth set being set-located, interior basalt fibre cloth set and copper conductor
In mould tube, be inserted into the initial skirt, most at last the outer basalt fibre cloth set, interior basalt fibre cloth set and
The fastening end that copper conductor is fixed on the initial skirt is covered, and the spiral shell of the upper end of the initial skirt is then coordinated by nut
Initial skirt is threadedly coupled by line with the screw thread of the mould tube lower end with mould tube；
Then the free end on the length direction of outer basalt fibre cloth set is turned up, exchanges its interior outside, turned up always straight
To the outer turn-line that outer basalt fiber cloth is put close to the upper edge of the mould tube；
The part exposed outside the mould tube of the copper conductor, the copper conductor are supported using a series of flat idler
Horizontal part be connected by a bending section with inserting the part in the mould tube；
The copper conductor for ensuring to insert in mould tube using guide roller is always positioned on the longitudinal center line of the mould tube；
3) to the mould tube and the filling silica flour being well mixed in initial skirt, wollastonite in powder, kaolin powder, glass dust with
And dimethyl silicone polymer；
Then with smash pressure pipe by the silica flour in the mould tube and initial skirt, wollastonite in powder, kaolin powder, glass dust and
Dimethyl silicone polymer is compacted, and controls the filling of silica flour, wollastonite in powder, kaolin powder, glass dust and dimethyl silicone polymer
Loading amount with cause be compacted rear mold pipe in upper edge 4cm~5cm of the powder compact away from mould tube；
Then screw on nut disconnects the threaded connection of mould tube and initial skirt；
Then 5cm is moved straight down using batching the initial skirt of machine travel；
During initial skirt moves straight down, drive the outer turn-line of outer basalt fibre cloth set gradually to moving up
It is dynamic；
4) filling well mixed silica flour, wollastonite in powder, kaolin powder, glass dust and poly- two again into the mould tube
Methylsiloxane；
Then use and smash pressure pipe by the silica flour in the mould tube, wollastonite in powder, kaolin powder, glass dust and poly dimethyl silicon
Oxygen alkane is compacted, and control silica flour, wollastonite in powder, kaolin powder, the filling amount of glass dust and dimethyl silicone polymer are to cause
Upper edge 4cm~5cm of the powder compact away from mould tube being compacted in rear mold pipe；
Then 5cm is moved using the direction for batching the initial skirt of machine travel to remote mould tube；
Then repeat according to the initial skirt movement 5cm of filling powder-smash press-powder end-traction；
5) after the length of the copper conductor with refractory insulating layer pulled out from mould tube meets bending radius, with fire resisting
The copper conductor of insulating barrier is bent into horizontal direction, is supported using a series of flat idler；
When the refractory insulating layer produced closes on the free end of copper conductor, stop filling powder, then will carry refractory insulating layer
Copper conductor exited from mould tube along the pulling motion direction of script copper conductor, then remove fastening and end cap and initially draw
Pipe, then with Ceramic silicon rubber composite band in the wrapped making refractory insulating layer in the both ends without powder compact of copper conductor, and
Control is wrapped between Ceramic silicon rubber composite band and copper conductor by outer basalt fibre cloth set and interior basalt fibre cloth set,
So far electric power core is obtained；
6) take tight tube fiber, strengthen steel core, optical fiber filler and binder, then with optical fiber binder by the tight set
Optical fiber, strengthen steel core and optical fiber and wrapped up with filler into a branch of, then extruded on outer surface of the optical fiber with binder
Ceramic silicon rubber layer, obtains fiber cores；
Then the fiber cores, electric power core and cable core filler are wrapped up into a branch of with cable core binder, then in institute
State cable core and extrude inner restrictive coating with the outer surface of binder；
Then water blocking layer and external sheath layer are extruded successively from inside to outside in the outer surface of inner restrictive coating, finally gives optical cable.
2. preparation method according to claim 1, it is characterised in that the inner restrictive coating is polyvinyl chloride material.
3. preparation method according to claim 1, it is characterised in that the external sheath layer is low smoke, zero halogen polyolefin flame-retardant
Restrictive coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610992849.0A CN106710698B (en) | 2016-11-10 | 2016-11-10 | A kind of preparation method of optical cable for intelligent grid |
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| CN201610992849.0A CN106710698B (en) | 2016-11-10 | 2016-11-10 | A kind of preparation method of optical cable for intelligent grid |
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| CN106710698B true CN106710698B (en) | 2018-01-26 |
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| RU2686306C1 (en) * | 2018-03-29 | 2019-04-25 | Андрей Витальевич Андреев | Current-conducting core with incombustible coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275624U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | Environment-friendly high temperature-resistant, fireproof and fire-resistant cable |
| CN102708981A (en) * | 2012-06-12 | 2012-10-03 | 江苏中煤电缆股份有限公司 | Optical-fiber composite type mining cable |
| CN202650671U (en) * | 2012-04-28 | 2013-01-02 | 上海朗达电缆（集团）有限公司 | Composite cable suitable for smart grid |
| CN203950599U (en) * | 2013-12-24 | 2014-11-19 | 江苏金牛线缆集团有限公司 | Fireproof power cable |
| CN106009690A (en) * | 2016-05-31 | 2016-10-12 | 广州市金象工业生产有限公司 | Ceramic, silicone rubber and glass fiber composite insulation rubber |
-
2016
- 2016-11-10 CN CN201610992849.0A patent/CN106710698B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275624U (en) * | 2011-10-11 | 2012-06-13 | 芜湖航天特种电缆厂 | Environment-friendly high temperature-resistant, fireproof and fire-resistant cable |
| CN202650671U (en) * | 2012-04-28 | 2013-01-02 | 上海朗达电缆（集团）有限公司 | Composite cable suitable for smart grid |
| CN102708981A (en) * | 2012-06-12 | 2012-10-03 | 江苏中煤电缆股份有限公司 | Optical-fiber composite type mining cable |
| CN203950599U (en) * | 2013-12-24 | 2014-11-19 | 江苏金牛线缆集团有限公司 | Fireproof power cable |
| CN106009690A (en) * | 2016-05-31 | 2016-10-12 | 广州市金象工业生产有限公司 | Ceramic, silicone rubber and glass fiber composite insulation rubber |
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| CN106710698A (en) | 2017-05-24 |
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