CN115267990A - Tensile and torsion-resistant optical cable assembly for wind power sensor - Google Patents
Tensile and torsion-resistant optical cable assembly for wind power sensor Download PDFInfo
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- CN115267990A CN115267990A CN202210721188.3A CN202210721188A CN115267990A CN 115267990 A CN115267990 A CN 115267990A CN 202210721188 A CN202210721188 A CN 202210721188A CN 115267990 A CN115267990 A CN 115267990A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 65
- 230000004224 protection Effects 0.000 claims abstract description 39
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims abstract description 3
- 239000013307 optical fiber Substances 0.000 claims description 35
- 239000004760 aramid Substances 0.000 claims description 14
- 229920003235 aromatic polyamide Polymers 0.000 claims description 14
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- 239000003063 flame retardant Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 3
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- 238000002844 melting Methods 0.000 claims description 2
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- 241000700159 Rattus Species 0.000 description 5
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- 210000001503 joint Anatomy 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to a wind generating set. The wind power sensing optical cable component has the functions of tensile resistance, torsion resistance, rat bite prevention, flame retardance, salt mist corrosion resistance and the like. The technical scheme is that the tensile and torsion-resistant optical cable component for the wind power sensor comprises an optical cable; the method is characterized in that: two ends of the optical cable are respectively sleeved with a tensile protection component through a splitter in a penetrating way; the tensile protection assembly comprises an anti-bending tail sleeve and a conversion connector which are positioned on the right side of the splitter and are sequentially arranged from right to left and are mutually connected, and a second metal protection joint, a first metal protection joint, a rotatable connector and a corrugated pipe which are positioned on the left side of the splitter and are sequentially arranged from right to left and are mutually connected; the conversion connector and the second metal protection joint are also connected with each other; the connections are all threaded connections.
Description
Technical Field
The invention relates to a wind generating set, in particular to a tensile and torsion resistant optical cable component for wind power sensing in the wind generating set.
Background
In the face of the demand of energy sources for global economy and population growth, the gradual exhaustion of traditional energy sources and the deterioration of human living environment, and the development of clean and renewable new energy sources are the only way for human sustainable development. According to the calculation of the world energy organization, the annual increase of wind power generation is over 30 percent, and by 2020, the total capacity of the wind power installation in the world reaches 12 hundred million kilowatts, and the annual power generation amount reaches 12 percent of the total demand of the world electric energy. The wind energy has relatively low manufacturing cost, and becomes the first choice of new energy for disputed development of various countries.
With the gradual rise of wind energy, the cable assembly for central control of the wind generating set is gradually required to be vigorous according to the characteristics of the tower barrel of the wind generating set, and the optical cable assembly is gradually popularized as the central control due to the superiority of the transmission capacity and the transmission speed of the optical cable; according to the installation mode, the use environment and the operation characteristics of the wind power central control cable, the tensile and torsion resistant performance of the traditional optical cable can not meet the requirements of the wind power cable, and a solution is urgently needed to be provided.
Disclosure of Invention
The invention aims to solve the technical problem, overcomes the defects of the background technology and provides a cable assembly for wind power sensing, which has the functions of tensile resistance, torsion resistance, rat bite prevention, flame retardance, salt mist corrosion resistance and the like.
The technical scheme adopted by the invention is as follows: the tension-resistant and torsion-resistant optical cable component for the wind sensor comprises an optical cable; the method is characterized in that: two ends of the optical cable are respectively sleeved with a tensile protection component through a splitter in a penetrating way; the tensile protection assembly comprises an anti-bending tail sleeve and a conversion connector which are positioned on the right side of the splitter and are sequentially arranged from right to left and are mutually connected, and a second metal protection joint, a first metal protection joint, a rotatable connector and a corrugated pipe which are positioned on the left side of the splitter and are sequentially arranged from right to left and are mutually connected; the conversion connector and the second metal protection joint are also connected with each other; the connection is threaded connection;
the left end of the corrugated pipe is also connected with a pull ring through a heat shrink tube so as to be used for dragging in the installation process of the optical cable assembly.
The splitter is hooped on the outer circumferential surface of the optical cable through the thin heat shrinkable tube after heat melting.
The length of the optical cable is suitable for the height of a tower barrel.
A plurality of SC optical fiber connectors are respectively arranged at two ends of the optical cable; the optical cable comprises a core wire, a belting layer, a rat-proof and anti-torsion spiral armor layer, a rat-proof and ant-proof stainless steel woven mesh, an aramid yarn reinforcing element and an outer sheath which are sequentially coated from inside to outside.
The core wire comprises an inner sheath, a plurality of tight-buffered optical fibers arranged in the inner sheath and aramid yarns arranged among the tight-buffered optical fibers.
Two ends of each tight-buffered optical fiber are respectively provided with the SC optical fiber connector,
the SC optical fiber connector and the branch part thereof are arranged in the corrugated pipe for protection (play a role in protection in the transportation and laying processes).
The optical cable inner sheath is made of halogen-free flame-retardant polyolefin.
The outer sheath is made of a torsion-resistant and wear-resistant polyurethane material.
When the cable assembly is installed on the tower, the cable assembly can be pulled upwards layer by using the pull ring (or the cable assembly is released layer by layer downwards; after the cable assembly is pulled in place, the corrugated pipe can be removed, the cable assembly can be installed layer by layer, and the corrugated pipe can be completely removed after all wiring is completed.
The invention has the beneficial effects that: in the provided cable assembly for torsion-resistant wind power sensing, the optical fiber can be effectively prevented from being broken through the matched tensile protection assembly, aramid yarn, inner sheath, armor, weaving layer and outer sheath; in the optical cable, the metal braid layer outside the core wire can carry out mechanical physical protection on the optical cable, and can prevent tearing, rat bite and torsion; the flame-retardant jacket has a certain flame-retardant effect through the structural design of the inner and outer flame-retardant jackets. In a word, the optical cable has excellent environmental resistance, can normally operate on land and at sea, can ensure that the optical fiber is not broken when the top of the wind turbine barrel is twisted, meets the requirement of additional loss, can ensure that the optical fiber normally operates, and has high operation reliability.
Drawings
Fig. 1 is a schematic cross-sectional view of a fiber optic cable in an embodiment of the present invention.
Fig. 2 is a schematic diagram of the left end structure of the optical cable according to the embodiment of the present invention (the right end structure of the optical cable is symmetrical, so it is omitted).
FIG. 3 is a schematic view of the left end structure of the optical cable assembly according to the embodiment of the present invention (the right end structure of the optical cable assembly is symmetrical, and thus omitted)
Fig. 4 is a schematic view of the cable configuration of fig. 3 with the splitter installed.
Fig. 5 is an exploded view of the remaining components of fig. 3 with the splitter and fiber optic cable removed.
Reference numbers in the figures: 1. tightly sleeving the optical fiber; 2. aramid yarn; 3. an inner sheath; 4. a spiral armor layer; 5. a stainless steel wire braid layer; 6. an outer sheath; 7. a belting layer; 8. aramid yarn wrapping layers; 9. a pull ring; 10. a splitter; 11. armored optical patch cords; 12. a thin heat shrink tube; 13. a coding tube; 14. a pull ring; 15. heat shrink tubing; 16. a bellows; a rotatable connector; 18. a first metal protection joint; 19. a second metal protection joint; 20. a conversion connector; 21. a tail folding prevention sleeve; 22. an optical cable.
Detailed Description
The following further description is made with reference to the embodiments shown in the drawings.
FIG. 1 is a cross-section of an optical cable in a twist resistant wind power sensing optical cable assembly; the central part in the figure is a core wire, and the core wire consists of a plurality of tightly-sleeved optical fibers 1, aramid yarns 2 arranged among the plurality of tightly-sleeved optical fibers and an inner sheath 3 which covers the tightly-sleeved optical fibers and the aramid yarns for protection. The outside from interior to the outer cladding in proper order of heart yearn has polyester to wind covering 7, spiral armor 4, stainless steel wire weaving layer 5, aramid yarn around covering 8 and oversheath.
The aramid yarn is distributed at the optical fiber part, so that enough tension can be provided; the flame-retardant polyolefin inner sheath can physically protect the optical fiber and has a flame-retardant function; a layer of stainless steel spiral armor is added on the outer side of the inner sheath, so that the effects of preventing rats from biting and twisting can be achieved; the stainless steel wire braided layer is further surrounded outside, so that the effects of rat resistance, tear resistance, torsion resistance and optical cable tension can be increased; then, a reinforcing element (aramid yarn wrapping layer) formed by wrapping aramid yarns can effectively increase the tensile strength; and the finally coated outer sheath is made of flame-retardant polyurethane, so that the fan has the functions of torsion resistance, fatigue resistance, ultraviolet resistance and flame retardance, and the sheath is ensured not to crack by repeated torsion when the fan normally operates, so that the optical fiber normally transmits signals.
And two ends of the optical cable are respectively fixed with a splitter 10 through a heat shrink tube (the heat shrink tube is heated to shrink and then hoops the splitter on the outer surface of the optical cable). Each tight-buffered optical fiber end in the cable is fitted with an armored optical jumper 11 and jacketed with a coded tube 13 to distinguish the different fibers.
The armored optical jumper wire in the optical cable is preferably an SC optical fiber connector and can be matched with the upper connector of the cabinet, so that butt joint with equipment is facilitated.
In order to facilitate installation and dragging, the two ends of the optical cable are respectively connected with a tensile protection component through branch connectors. The tensile protection component comprises an anti-folding tail sleeve 21, a conversion connector 20, a second metal protection joint 19, a first metal protection joint 18, a rotatable connector 17 and a corrugated pipe 16, wherein the anti-folding tail sleeve is sleeved on the optical cable in a penetrating mode; the anti-folding tail sleeve and the conversion connector are positioned on the right side of the splitter and are sequentially arranged from right to left and are in threaded connection with each other (internal threads on the left side of the anti-folding tail sleeve are in rotary connection with external threads on the right side of the conversion connector); the second metal protection joint, the first metal protection joint, the rotatable connector and the corrugated pipe are positioned on the left side of the splitter and are sequentially arranged from right to left and are mutually connected (an external thread on the left side of the second metal protection joint is rotationally connected with an internal thread on the right side of the first metal protection joint, an external thread on the left side of the first metal protection joint is rotationally connected with an internal thread on the right side of the rotatable connector, and an external thread on the left side of the rotatable connector is rotationally connected with an internal thread on the right side joint of the corrugated pipe); the external thread on the left side of the conversion connector is mutually and rotatably connected with the internal thread on the right side of the second metal protection joint; the left end of the corrugated pipe is also connected with a pull ring 14 through a heat shrink tube 15 (the heat shrink tube is heated to shrink, then the rope end of the pull ring is hooped on the outer surface of the optical cable, and the knot at the end part of the rope can enhance the connection strength of the pull ring after being hooped) so as to be used for dragging in the installation process of the optical cable assembly.
The two metal protection joints are of a waterproof structure, so that adverse effects of water vapor on optical fiber transmission are avoided; each tightly sleeved optical fiber in the optical cable is divided into an independent armored jumper wire, so that a connector is convenient to install; moreover, all the armored optical patch cords are folded in the corrugated pipe 16 and used for protecting the armored optical patch cords during transportation and installation of the optical cable assembly, so that sprain and strain are avoided; when the torsion-resistant optical cable assembly for the wind power sensor is hoisted on the tower footing from top to bottom by the pull ring 14, a single-core armored jumper can be protected to avoid the fault caused by stress.
The invention has the characteristics that:
1. the aramid yarn reinforcing element is placed in the inner sheath, the optical fiber is supported by tensile force, transmission attenuation and service life of the optical fiber under stress in the subsequent process are guaranteed, the inner sheath performs mechanical physical protection on the optical fiber, moisture is prevented from entering the optical fiber, and microcracks caused by hydrogen absorption of the optical fiber are prevented from increasing and affecting the service life of the optical fiber.
2. The spiral armor uses stainless steel to prevent rusting, and the armor structure can protect the internal tightly-sleeved optical fiber during torsion, plays a mechanical protection role on the optical cable and prevents mice from biting and breaking the optical fiber.
3. A layer of stainless steel wire woven layer is added on the outer side of the spiral armor, and the effects of tearing resistance, cutting resistance, rat bite resistance and certain tensile strength increase are achieved.
4. The outer sheath is made of polyurethane, and is characterized by being wear-resistant and torsion-resistant, having a physical protection effect on the whole optical cable, and having UV (ultraviolet) resistance and flame retardant effects.
5. The splitter is an injection molding part, is stable in size and durable in use, different core numbers can be designed according to requirements, and the splitter and the optical cable are fixed through the thin heat-shrinkable tube, so that the splitter is prevented from falling off.
6. The metal protection joint is treated by a chromium plating process, so that rusting and salt spray corrosion are avoided, and the long-term use stability is improved.
7. The optical cable passes through the splitter, a layer of armored hollow pipe is sleeved outside the tight sleeve to physically protect the optical fiber, and an armored optical jumper wire is formed together and is also of a flame-retardant structure, so that the fire spread during fire is avoided; the armored optical jumper wire is in butt joint with the tower bottom cabinet in a mode of matching internal and external threads, and is fixed through the threads to prevent the connector from falling off.
The above is a detailed introduction of the torsion-resistant optical cable assembly for wind power sensing provided by the invention; for general manufacturers in the field, according to the ideas and principles of the embodiments of the present invention, the specific implementation and the application range may be changed; accordingly, the subject matter of this specification should not be construed as limiting the invention.
Claims (9)
1. The tension-resistant and torsion-resistant optical cable component for the wind sensor comprises an optical cable; the method is characterized in that: two ends of the optical cable are respectively sleeved with a tensile protection component through a splitter (10) in a penetrating way and connected with the tensile protection component; the tensile protection component comprises an anti-bending tail sleeve (21) and a conversion connector (20) which are positioned on the right side of the splitter and are sequentially arranged from right to left and are mutually connected, and a second metal protection joint (19), a first metal protection joint (18), a rotatable connector (17) and a corrugated pipe (16) which are positioned on the left side of the splitter and are sequentially arranged from right to left and are mutually connected; the conversion connector and the second metal protection joint are also connected with each other; the left end of the corrugated tube is also connected with a pulling ring (14) through a heat shrinkable tube (15) for dragging during the installation of the optical cable assembly.
2. The tension-resistant, torsion-resistant, wind-sensing optical cable assembly according to claim 1, wherein: the splitter is hooped on the outer circumferential surface of the optical cable through the thin heat shrinkable tube after heat melting.
3. The tension-resistant, torsion-resistant, wind-sensing optical cable assembly according to claim 2, wherein: the length of the optical cable is suitable for the height of the tower barrel.
4. The tension-resistant torsion-resistant wind sensing cable assembly according to claim 3, wherein: a plurality of SC optical fiber connectors are respectively arranged at two ends of the optical cable; the optical cable comprises a core wire, a belting layer (7), a rat-proof and anti-torsion spiral armor layer (4), a rat-proof and ant-proof stainless steel woven mesh (5), an aramid yarn reinforcing element (8) and an outer sheath (6) which are sequentially coated from inside to outside.
5. The tension-resistant, torsion-resistant, wind-sensing optical cable assembly according to claim 14, wherein: the core wire comprises an inner sheath (3), a plurality of tight-buffered optical fibers (1) arranged in the inner sheath and aramid yarns (2) arranged among the tight-buffered optical fibers.
6. The tension-resistant torsion-resistant wind-power sensing optical cable assembly according to claim 5, wherein: and two ends of each tight-sleeved optical fiber are respectively provided with the SC optical fiber connector.
7. The tension-resistant torsion-resistant wind sensing cable assembly according to claim 6, wherein: and the SC optical fiber connector and the branch part thereof are arranged in the corrugated pipe for protection.
8. The tension-resistant, torsion-resistant, wind-sensing optical cable assembly according to claim 7, wherein: the inner sheath is made of halogen-free flame-retardant polyolefin.
9. The torsion resistant wind sensing fiber optic cable assembly of claim 8, wherein: the outer sheath is made of a torsion-resistant and wear-resistant polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210721188.3A CN115267990A (en) | 2022-06-24 | 2022-06-24 | Tensile and torsion-resistant optical cable assembly for wind power sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210721188.3A CN115267990A (en) | 2022-06-24 | 2022-06-24 | Tensile and torsion-resistant optical cable assembly for wind power sensor |
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| Publication Number | Publication Date |
|---|---|
| CN115267990A true CN115267990A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210721188.3A Pending CN115267990A (en) | 2022-06-24 | 2022-06-24 | Tensile and torsion-resistant optical cable assembly for wind power sensor |
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| CN (1) | CN115267990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807352A (en) * | 2022-12-21 | 2023-03-17 | 青岛亿和海丽安防科技有限公司 | Anti-twist branch cable |
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| CN210427884U (en) * | 2019-04-26 | 2020-04-28 | 上海耀瑞光电科技有限公司 | Prefabricated optical fiber splice cable with high pressure resistance, low laying restriction and multi-environment applicability |
| CN212965536U (en) * | 2020-07-06 | 2021-04-13 | 四川汇源光通信有限公司 | Nonmetal rat-proof double-end prefabricated optical cable and fusion-free optical distribution |
| CN112882169A (en) * | 2021-02-24 | 2021-06-01 | 中国科学院高能物理研究所 | Flexible armored pipeline optical cable assembly |
-
2022
- 2022-06-24 CN CN202210721188.3A patent/CN115267990A/en active Pending
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|---|---|---|---|---|
| KR20000031893A (en) * | 1998-11-11 | 2000-06-05 | 권문구 | Pulling eye for high strength optical fiber cable |
| FR2822962A1 (en) * | 2001-03-28 | 2002-10-04 | Jan Ortyl | Fibre optic cable site protection sleeve having annealed flexible tube with inner packing attached rotating screw eye fuse section/pulling needle attached |
| US20030063867A1 (en) * | 2001-09-28 | 2003-04-03 | Mcdonald A. John | Fiber optic plug |
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| CN206497245U (en) * | 2017-03-03 | 2017-09-15 | 泛达通讯零部件(无锡)有限公司 | The haulage gear of optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807352A (en) * | 2022-12-21 | 2023-03-17 | 青岛亿和海丽安防科技有限公司 | Anti-twist branch cable |
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