CN203587861U - Trigger optical cable used for field of ultrahigh voltage power transmission - Google Patents
Trigger optical cable used for field of ultrahigh voltage power transmission Download PDFInfo
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- CN203587861U CN203587861U CN201320718232.1U CN201320718232U CN203587861U CN 203587861 U CN203587861 U CN 203587861U CN 201320718232 U CN201320718232 U CN 201320718232U CN 203587861 U CN203587861 U CN 203587861U
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Abstract
The utility model relates to a trigger optical cable used for the field of ultrahigh voltage power transmission. The trigger optical cable comprises a core layer, a wrapping layer, a coating layer, a tightly wrapping layer, a reinforcing layer and an outer sheath layer in sequence from inside to outside; the core layer is of a solid structure, an outer wall of the core layer is wrapped by the wrapping layer, an outer wall of the wrapping layer is wrapped by the coating layer, an outer wall of the coating layer is wrapped by the tightly wrapping layer, an outer wall of the tightly wrapping layer is wrapped by the reinforcing layer, and an outer wall of the reinforcing layer is wrapped by the outer sheath layer; and the tightly wrapping layer is made of Hytrel material of a flame-retardant level, the outer sheath layer is made of fluoroplastic, the reinforcing layer is filled by aramid fibers, and the refractive index of the core layer is larger than that of the wrapping layer. The design does not affect transmission performance of an optical fiber in near-infrared bands in the range of 800 nm to 1400 nm on the premise of guaranteeing the overall ultrahigh voltage-resistant level and the flame-retardant level of a product to the greatest extent, and is resistant to corrosion, resistant to high and low temperature, flame-retardant, insulating, resistant to ultrahigh voltage, resistant to tread, and not damaged.
Description
Technical field
The transmission that the utility model relates to a kind of field of power transmission triggers optical cable, relate in particular to a kind of triggering optical cable for UHV transmission field, specifically be applicable to provide a kind of resistance to extreme high voltage, high flame retardant, high insulation, dirty, the high-intensity triggering optical cable of resistant, belong to high pressure, extra-high voltage direct-current transmission technical field of cable transmission.
Background technology
In extra-high voltage direct-current transmission field, the triggering of thyristor is replaced by optical fiber, because the photosensitive area of thyristor is larger, therefore general is in the world to trigger with the quartzy sandwich layer plastic-clad optical fiber of large core diameter, to guarantee the Trigger Efficiency of surface of contact.In the cable configuration type selecting of using, main flow design is at present still PVC material sheath, and main cause is the good fire resistance due to this kind of material; For Results in High-Voltage Insulation performance, optical cable entirety adopts full tight tube structure simultaneously, but this kind of design has following defect:
The intrinsic material performance inferior positions such as first, PVC material guards has larger limitation in indoor application, and under the noxious material distributing under its high temperature and low temperature material is rotten will limit its applied environment;
Secondly, optical cable has reduced the intensity of bulk strength and the end connector of optic cable design without the complete tight Analysis of Nested Design of tensile strength material, affected assembly usability in actual applications.
Summary of the invention
The purpose of this utility model is to overcome the employing PVC material guards that exists in prior art, tensile strength weak defect and problem, and a kind of PVC material guards, triggering optical cable for UHV transmission field that tensile strength is stronger of not adopting is provided.
For realizing above object, technical solution of the present utility model is: a kind of triggering optical cable for UHV transmission field, comprise sandwich layer, covering and coat, and described sandwich layer is solid construction, the outer wall of sandwich layer is enclosed with covering, and the outer wall of this covering is enclosed with coat;
Described triggering optical cable also comprises hard-pressed bale layer, enhancement Layer and outer jacket; The outer wall of described coat is enclosed with hard-pressed bale layer, and the outer wall of this hard-pressed bale layer is enclosed with enhancement Layer, and the outer wall of this enhancement Layer is enclosed with outer jacket.
Described hard-pressed bale layer adopts other Hytrel material of flame retardant grade to manufacture, and its thickness is 0.3mm – 0.5mm.
Described outer jacket adopts fluoroplastic manufacture to form, and its thickness is 0.2mm – 0.5mm.
Described enhancement Layer is filled and is formed by aramid fiber, and filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving; The thickness of described enhancement Layer is 0.2mm – 0.4mm.
The manufactured materials of described sandwich layer is homogeneous doped silica glass or pure quartz glass, and the refractive index of sandwich layer is 1.43 – 1.49, and the diameter of sandwich layer is 0.06mm – 0.11mm;
The manufactured materials of described covering is homogeneous doped silica glass or pure quartz glass, and the refractive index of covering is 1.42 – 1.46, and the diameter of covering is 0.123mm – 0.126mm;
The refractive index of described sandwich layer is greater than the refractive index of covering.
The manufactured materials of described coat is acryl resin or silicon rubber, and the refractive index of coat is 1.5 – 1.7, and the thickness of coat is 0.05mm – 0.07mm.
Compared with prior art, the beneficial effects of the utility model are:
1, a kind of triggering optical cable for UHV transmission field of the utility model comprises altogether six layers of structure, sandwich layer, covering, coat, hard-pressed bale layer, enhancement Layer and outer jacket from inside to outside successively, wherein, sandwich layer, covering, coat are mainly responsible for transmitting accuracy and the response speed of light, hard-pressed bale layer, enhancement Layer and outer jacket are mainly responsible for the intensity of optical cable, be resistance to UHV (ultra-high voltage), fire-retardant, tensile strength, resistance to trampling, not damaged etc.; Six layers of structure of aforementioned triggering optical cable, both made the design realize 800nm – 1400nm near infrared power light signal long time stability to transmit with two important indicators of coupling of high-efficiency stable to guarantee, can make again the design meet the demand of the Practical Projects such as resistance to UHV (ultra-high voltage), resistance to environmental change, insulation, fire-retardant, intensity in using, guarantee the long time stability work of optical cable product in engineering.Therefore, the utility model can not only be guaranteed the laser propagation effect of near infrared power light signal within the scope of 800nm – 1400nm, and intensity is stronger.
2, the hard-pressed bale layer of a kind of triggering optical cable for UHV transmission field of the utility model adopts other Hytrel material of flame retardant grade to manufacture, thereby can guarantee to greatest extent under the prerequisite of the product resistance to UHV (ultra-high voltage) grade of entirety and flame retardant rating, do not affect the transmission performance of optical fiber near-infrared band within the scope of 800nm – 1400nm, simultaneously, the PVC material production many disadvantages that Hytrel material also can not adopt as prior art, possesses larger range of application.Therefore, the utility model not only resistance to UHV (ultra-high voltage), transmission performance fire-retardant, near-infrared band within the scope of 800nm – 1400nm is better, and range of application is wider.
3, the outer jacket of a kind of triggering optical cable for UHV transmission field of the utility model adopts fluoroplastic manufacture to form, the premium properties such as that this material not only has is corrosion-resistant, high-low temperature resistant, fire-retardant, insulation, and can meet the requirements such as trample in the anti-external world, not damaged, fire-retardant, resistance to extra-high pressure, be the perfect selection of external protective material.Therefore, corrosion-resistant, the high-low temperature resistant of the utility model, fire-retardant, insulation, resistance to extra-high pressure, resistance toly trample, not damaged.
4, the manufactured materials of a kind of triggering optical cable center core layer for UHV transmission field of the utility model, covering is homogeneous doped silica glass or pure quartz glass, the refractive index of sandwich layer is greater than the refractive index of covering, and sandwich layer adopts larger sandwich layer diameter multimodes design, this design not only can take into account the demands such as high temperature measurement accuracy, high-temperature response performance, highly-reliable transmission, long-life work, and can meet the requirement that the aspect that continues is general, improve joint, welding product interchangeability energy, increase the service life.Therefore, the utility model not only steady signal transmission, transfer efficiency is higher, and serviceable life is longer.
5, the enhancement Layer of a kind of triggering optical cable for UHV transmission field of the utility model is filled and is formed by aramid fiber, and filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving; This place adopts the design of the high-strength performance aramid fiber filling of multiply, has not only guaranteed the intensity of optical cable entirety, has extended serviceable life and functional reliability, and fuller filling rate has also been guaranteed the requirement of insulation.Therefore, the utility model not only tensile strength is stronger, and insulation effect is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: sandwich layer 1, covering 2, coat 3, hard-pressed bale layer 4, enhancement Layer 5, outer jacket 6.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of triggering optical cable for UHV transmission field, comprises sandwich layer 1, covering 2 and coat 3, and described sandwich layer 1 is solid construction, and the outer wall of sandwich layer 1 is enclosed with covering 2, and the outer wall of this covering 2 is enclosed with coat 3;
Described triggering optical cable also comprises hard-pressed bale layer 4, enhancement Layer 5 and outer jacket 6; The outer wall of described coat 3 is enclosed with hard-pressed bale layer 4, and the outer wall of this hard-pressed bale layer 4 is enclosed with enhancement Layer 5, and the outer wall of this enhancement Layer 5 is enclosed with outer jacket 6.
Described hard-pressed bale layer 4 adopts other Hytrel material manufacture of flame retardant grade, and its thickness is 0.3mm – 0.5mm.
Described outer jacket 6 adopts fluoroplastic manufacture to form, and its thickness is 0.2mm – 0.5mm.
Described enhancement Layer 5 is filled and is formed by aramid fiber, and filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving; The thickness of described enhancement Layer 5 is 0.2mm – 0.4mm.
The manufactured materials of described sandwich layer 1 is homogeneous doped silica glass or pure quartz glass, and the refractive index of sandwich layer 1 is 1.43 – 1.49, and the diameter of sandwich layer 1 is 0.06mm – 0.11mm;
The manufactured materials of described covering 2 is homogeneous doped silica glass or pure quartz glass, and the refractive index of covering 2 is 1.42 – 1.46, and the diameter of covering 2 is 0.123mm – 0.126mm;
The refractive index of described sandwich layer 1 is greater than the refractive index of covering 2.
The manufactured materials of described coat 3 is acryl resin or silicon rubber, and the refractive index of coat 3 is 1.5 – 1.7, and the thickness of coat 3 is 0.05mm – 0.07mm.
Principle of the present utility model is described as follows:
In extra-high voltage direct-current transmission field, main flow design is still PVC material sheath, simultaneously for Results in High-Voltage Insulation performance, optical cable entirety adopts full tight tube structure, but this kind of design has following defect: first, the intrinsic material performance inferior positions such as PVC material guards has larger limitation in indoor application, and under the noxious material distributing under its high temperature and low temperature material is rotten will limit its applied environment; Secondly, optical cable has reduced the intensity of bulk strength and the end connector of optic cable design without the complete tight Analysis of Nested Design of tensile strength material, affected assembly usability in actual applications.
In addition,, in the triggering transmission application in extra-high voltage direct-current transmission field, within the optical band of using is generally near infrared 800nm – 1000nm scope, within this transmission wave segment limit, the transfer efficiency of low-doped quartzy sandwich layer or pure quartz core layer is higher.
For overcoming above defect and meeting above requirement, the utility model considers in the gordian techniquies such as the design selection of optical fiber, the structural design type selecting of optical cable, thereby designs a kind of triggering optical cable for UHV transmission field of harsh requirements such as can meeting the required resistance to extreme high voltage of extra-high voltage direct-current transmission application, high flame retardant, high insulation, resistant are dirty, high strength, long life.
(1), sandwich layer:
To be that 1.43 – 1.49(are super go beyond the scope sandwich layer---refractive index, more difficult realization in technique, doping need to be adjusted larger), diameter is the efficiency that coupling fiber is depended in this design of 0.06mm – 0.11mm(, too little coupling efficiency is not high, the too large bending loss light leak that easily produces), by homogeneous doped silica glass, (mix fluorine, mix germanium, mix phosphorus or boron-doping etc.) or pure quartz glass composition, within the optical band of using is generally near infrared 800nm – 1000nm scope, within this transmission wave segment limit, the transfer efficiency of low-doped quartzy sandwich layer or pure quartz core layer is higher.
This sandwich layer is solid construction, adopt larger sandwich layer diameter multimodes design, the sandwich layer diameter of more common multimode optical fiber is larger, (sandwich layer is large to have improved the temperature measuring efficiency of optical fiber and precision, cladding thickness reduces, blocking effect dies down, outer field temperature just can pass to sandwich layer effect sooner), guaranteed the effect of leaded light steady in a long-term, extended the serviceable life of product, sandwich layer adopts the design of homogeneous dopant material simultaneously, be different from the gradient doping design of material of common multimode optical fiber, avoided sandwich layer cross section in leaded light process, the focusing of luminous power energy burns out the problem of sandwich layer part, guaranteed the effect of leaded light steady in a long-term, extended the serviceable life of product, finally take into account high coupling efficiency, low coupling loss, evenly sandwich layer power density, the uniform distribution of leaded light power, highly-reliable transmission, the demands such as long-life work, realized 800nm – 1400nm near infrared power light signal long time stability and transmitted with two important indicators of coupling of high-efficiency stable and guaranteed.
(2), covering:
Covering---refractive index is 1.42 – 1.46, to be that 0.123mm – 0.126mm(is super go beyond the scope diameter, welding or when making joint and be coupled, in technique, be difficult to realize, also can increase coupling loss), by homogeneous doped silica glass (mix fluorine, mix germanium, mix phosphorus or boron-doping etc.) or pure quartz glass, formed, and the refractive index of sandwich layer is greater than the refractive index of covering.The design of the diameter range of covering can meet the requirement that the aspect that continues is general, improves joint, welding product interchangeability energy, increases the service life.In addition, the refractive index that the refractive index of sandwich layer is greater than covering is the necessary condition that forms waveguiding structure, and optical fiber transmission optical property is had to effect.
(3), coat:
Coat---refractive index is 1.5 – 1.7, and thickness is 0.05mm – 0.07mm, by acryl resin or silicon rubber etc., is made.The refractive index of coat is higher; mainly play a part protection cladding surface; also should select according to environment for use the material of different temperature resistant grades simultaneously; such as acryl resin or silicon rubber etc.; and consider fire-retardant requirement; the thickness of coat is done to certain requirement, to improve resistance to UHV (ultra-high voltage) and the fire resistance demand of product entirety.
(4), hard-pressed bale layer:
Hard-pressed bale layer---thickness is 0.3mm – 0.5mm, adopts other Hytrel material of flame retardant grade to manufacture.Hard-pressed bale layer adopts the Hytrel material of flame retardant rating to design, can guarantee to greatest extent under the prerequisite of the product resistance to UHV (ultra-high voltage) grade of entirety and flame retardant rating, the transmission performance that does not affect optical fiber near-infrared band within the scope of 800nm – 1400nm (follows the material behavior of Hytrel material relevant, in process, the shrinkage ratio of this material is not too large, can not cause obvious impact to the transmission of optical fiber).According to the requirement of different environments for use, the thickness of hard-pressed bale layer has certain difference, to guarantee environment for use, insulation, many-sided performance requirement such as fire-retardant.
Hytrel material---thermoplastic polyester's elastomeric block copolymers, two kinds of structures of the polybutylene terephthalate that comprises crystallization and amorphous long chain glycol; Obdurability and elasticity, anti-deformation, protecting against shock, flex stiffiness, low temperature elasticity, anti-hydrocarbon compound etc.
(5), enhancement Layer:
Enhancement Layer---thickness is that the thickness of 0.2mm – 0.4mm(enhancement Layer is mainly to coordinate number of share of stock, reach certain number of share of stock and can realize enough tensile strength, but blocked up technology difficulty and the cost of products of can increasing again), by aramid fiber, fill and form, filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving.Enhancement Layer adopts aramid fiber material to fill, and guarantees the tensile strength of optical cable product, and the requirement of enhancement Layer thickness is mainly the volume requirement of filling in order to meet aramid fiber number of share of stock, and fuller filling rate has also been guaranteed the requirement of insulation.
(6), outer jacket:
Outer jacket---thickness is if that the thickness of 0.2mm – 0.5mm(outer jacket is too thin, insufficient strength, and the ability of the external environment impacts such as bend resistance, friction, scraping declines; Too thick technology difficulty and the cost of products of can increasing again of thickness), adopt fluoroplastic (E.I.Du Pont Company) or polyurethane manufacture to form, the premium properties such as that this material has is corrosion-resistant, high-low temperature resistant, fire-retardant, insulation, are improving and select of external protective material.The thickness of outer jacket depends on performance integrated demand, meets the anti-external world and tramples, not damaged, anti-scratch, acidproof, alkaline-resisting, fire-retardant (UL94-V0 grade), the requirements such as resistance to extra-high pressure, thickness reaches designing requirement can guarantee that optical cable there will not be damaged phenomenon in the process of construction and use.
Embodiment:
Referring to Fig. 1, a kind of triggering optical cable for UHV transmission field, is sandwich layer 1, covering 2, coat 3, hard-pressed bale layer 4, enhancement Layer 5 and outer jacket 6 from inside to outside successively; Described sandwich layer 1 is solid construction, and the outer wall of sandwich layer 1 is enclosed with covering 2, and the outer wall of this covering 2 is enclosed with coat 3, and the outer wall of this coat 3 is enclosed with hard-pressed bale layer 4, and the outer wall of this hard-pressed bale layer 4 is enclosed with enhancement Layer 5, and the outer wall of this enhancement Layer 5 is enclosed with outer jacket 6;
Described hard-pressed bale layer 4 adopts other Hytrel material manufacture of flame retardant grade, and its thickness is 0.3mm – 0.5mm; Described outer jacket 6 adopts fluoroplastic manufacture to form, and its thickness is 0.2mm – 0.5mm; Described enhancement Layer 5 is filled and is formed by aramid fiber, and filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving, and the thickness of enhancement Layer 5 is 0.2mm – 0.4mm;
The manufactured materials of described sandwich layer 1 is homogeneous doped silica glass or pure quartz glass, and the refractive index of sandwich layer 1 is 1.43 – 1.49, and the diameter of sandwich layer 1 is 0.06mm – 0.11mm; The manufactured materials of described covering 2 is homogeneous doped silica glass or pure quartz glass, and the refractive index of covering 2 is 1.42 – 1.46, and the diameter of covering 2 is 0.123mm – 0.126mm; The refractive index of described sandwich layer 1 is greater than the refractive index of covering 2; The manufactured materials of described coat 3 is acryl resin or silicon rubber, and the refractive index of coat 3 is 1.5 – 1.7, and the thickness of coat 3 is 0.05mm – 0.07mm.
A kind of triggering optical cable for UHV transmission field of above-mentioned design: sandwich layer, blanket design have realized 800nm – 1400nm near infrared power light signal long time stability to be transmitted and two important indicators of coupling of high-efficiency stable guarantee, is conducive to improve the UHV transmissions such as coupling efficiency, coupling stability, long-term reliability and triggers demand; The resistance to UHV (ultra-high voltage) of product entirety, resistance to environmental change, insulation, fire-retardant, anticorrosive, anti-demand of trampling in the Practical Project uses such as scraping, high strength have been guaranteed in the design of coat, hard-pressed bale layer, enhancement Layer, outer jacket, have guaranteed the long time stability work of optical cable product in engineering; In addition, the design's one-piece construction is simple, is easy to processing and fabricating, and properties of product are easy to detect, and cost performance is high.
Claims (6)
1. the triggering optical cable for UHV transmission field, comprise sandwich layer (1), covering (2) and coat (3), described sandwich layer (1) is solid construction, and the outer wall of sandwich layer (1) is enclosed with covering (2), the outer wall of this covering (2) is enclosed with coat (3), it is characterized in that:
Described triggering optical cable also comprises hard-pressed bale layer (4), enhancement Layer (5) and outer jacket (6); The outer wall of described coat (3) is enclosed with hard-pressed bale layer (4), and the outer wall of this hard-pressed bale layer (4) is enclosed with enhancement Layer (5), and the outer wall of this enhancement Layer (5) is enclosed with outer jacket (6).
2. a kind of triggering optical cable for UHV transmission field according to claim 1, is characterized in that: described hard-pressed bale layer (4) adopts other Hytrel material of flame retardant grade to manufacture, and its thickness is 0.3mm – 0.5mm.
3. a kind of triggering optical cable for UHV transmission field according to claim 1 and 2, is characterized in that: described outer jacket (6) adopts fluoroplastic manufacture to form, and its thickness is 0.2mm – 0.5mm.
4. a kind of triggering optical cable for UHV transmission field according to claim 1 and 2, is characterized in that: described enhancement Layer (5) is filled and formed by aramid fiber, and filling number of share of stock is 6 strands of 2 –, and filling mode is for directly putting or weaving; The thickness of described enhancement Layer (5) is 0.2mm – 0.4mm.
5. a kind of triggering optical cable for UHV transmission field according to claim 1 and 2, is characterized in that:
The manufactured materials of described sandwich layer (1) is homogeneous doped silica glass or pure quartz glass, and the refractive index of sandwich layer (1) is 1.43 – 1.49, and the diameter of sandwich layer (1) is 0.06mm – 0.11mm;
The manufactured materials of described covering (2) is homogeneous doped silica glass or pure quartz glass, and the refractive index of covering (2) is 1.42 – 1.46, and the diameter of covering (2) is 0.123mm – 0.126mm;
The refractive index of described sandwich layer (1) is greater than the refractive index of covering (2).
6. a kind of triggering optical cable for UHV transmission field according to claim 5, it is characterized in that: the manufactured materials of described coat (3) is acryl resin or silicon rubber, the refractive index of coat (3) is 1.5 – 1.7, and the thickness of coat (3) is 0.05mm – 0.07mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718232.1U CN203587861U (en) | 2013-11-13 | 2013-11-13 | Trigger optical cable used for field of ultrahigh voltage power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718232.1U CN203587861U (en) | 2013-11-13 | 2013-11-13 | Trigger optical cable used for field of ultrahigh voltage power transmission |
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| Publication Number | Publication Date |
|---|---|
| CN203587861U true CN203587861U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718232.1U Withdrawn - After Issue CN203587861U (en) | 2013-11-13 | 2013-11-13 | Trigger optical cable used for field of ultrahigh voltage power transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558671A (en) * | 2013-11-13 | 2014-02-05 | 武汉鑫光年光电技术有限公司 | Trigger optical cable applied to field of ultra-high voltage power transmission |
-
2013
- 2013-11-13 CN CN201320718232.1U patent/CN203587861U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558671A (en) * | 2013-11-13 | 2014-02-05 | 武汉鑫光年光电技术有限公司 | Trigger optical cable applied to field of ultra-high voltage power transmission |
| CN103558671B (en) * | 2013-11-13 | 2016-01-20 | 武汉鑫光年光电技术有限公司 | A kind of trigger optical cable for UHV transmission field |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20160120 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |