CN201740900U - Reinforcing optical fiber unit - Google Patents

Reinforcing optical fiber unit Download PDF

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Publication number
CN201740900U
CN201740900U CN2010202813579U CN201020281357U CN201740900U CN 201740900 U CN201740900 U CN 201740900U CN 2010202813579 U CN2010202813579 U CN 2010202813579U CN 201020281357 U CN201020281357 U CN 201020281357U CN 201740900 U CN201740900 U CN 201740900U
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CN
China
Prior art keywords
optical fiber
fiber
protection layer
optical
reinforcement
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Expired - Lifetime
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CN2010202813579U
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Chinese (zh)
Inventor
薛驰
张建民
倪磊磊
陶新华
蔡炳余
马志金
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Zhongtian Technology Submarine Cable Co Ltd
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Zhongtian Technology Submarine Cable Co Ltd
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Priority to CN2010202813579U priority Critical patent/CN201740900U/en
Application granted granted Critical
Publication of CN201740900U publication Critical patent/CN201740900U/en
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Abstract

The utility model relates to a reinforcing optical fiber unit, in particular to an optical unit with a reinforcing element, which is applied to the production and manufacture of a photoelectric composite cable, an optical fiber composite cable, a submarine photoelectric composite cable, an indoor photoelectric cable and other optical fiber units. The utility model comprises a plurality of optical fibers, optical filling ointment, an optical fiber protection layer, a fiber reinforcement layer and a reinforcement outer protection layer. The outer part of the optical fibers is wrapped with a the optical fiber protection layer, the optical fiber ointment is arranged among a plurality of optical fibers in the optical fiber protection layer, the outer part of the optical fiber protection layer is provided with the fiber reinforcement protection layer, and the outer part of the fiber reinforcement layer is provided with the reinforcement outer protection layer. The manufacture method is that the optical fibers are paid off by a constant tension pay-off device, after being bundles, the optical fibers are extruded out by a special extrusion machine to be a layer of optical fiber protection layer, and at the same time, the gaps of the optical fiber are filled with waterproof cream filler. The optical fiber protection layer is externally wound with a layer of high-strength non-metal fiber yarns, and the fiber yarns are externally extruded with a waterproof reinforcing protection layer, and thus the utility model is manufactured.

Description

A kind of enhanced fiber unit
Technical field
What a kind of enhanced fiber unit of the utility model related to is a kind of fiber unit that strengthens element that has, and is applicable to that various optoelectronic composite cables, Optical Fiber Composite cable, sea floor optoelectronic composite cable, house lead in type optical cable etc. contain the production and the manufacturing of fiber unit of the power cable of fiber unit.Load-bearing component in the fiber unit is used for protecting not damage of external force such as tension, pressure of optical fiber, safeguards the normal operation of optical fiber.Optical fiber in the fiber unit can be realized various information transmission and automatic control function.
Background technology
In recent years, fast development along with China's power grid construction, the power optical fiber that is used for power information transmission and control usefulness has obtained fast development, has been widely used in long distance transmission line and city overhead transmission line as power optical fiber aerial earth wire (OPGW), no metal self-bearing type electric power optical cable (ADSS), electric power optical cable (OPPC) etc.Cross over rivers,lakes and seas the Optical Fiber Composite subsea cable, be used for offshore oil platform power supply usefulness sea floor optoelectronic composite cable, be used to connect the fiber composite power cable of wind power plant and transformer station etc., these power cables have a common feature, be exactly to contain in the power cable to can be used for the fiber unit that power communication and control instrument equipment are used, these products both had been used for the transmission of electric energy, again as the carrier of information.Especially for Optical Fiber Composite cable under water, optical fiber and power cable are combined with each other, and have not only saved the manufacturing cost of equipment, and have saved a large amount of seabed space resources and executive cost, have good society and economic benefit.
Moreover, intelligent grid is set up in national grid proposition in 2009 and power optical fiber reaches the development plans that many nets merge to the family, the intellectuality of general requirement operation power circuit and drop cable automatic control system, merge mutually with telecommunications network, broadcasting and television network and computer communication network, realize sharing of Internet resources, avoid low-level duplicate construction, Internet resources will be fully utilized.Progressively require drop cable should contain telecommunication cable simultaneously, and optical fiber is not subjected to the feature of low-voltage electric field influence, has determined it to be used for the superiority of power cable as communications carrier.
Must contain fiber unit in the Optical Fiber Composite cable, and the light unit that contains metal is subject to the power cable effect of electric field and produces loss and heating, the transmission performance and life-span of cable and optical cable all existed certain influence.And common non-metal optical unit does not possess mechanical protection functions such as tension required in production and the operation maintenance process and resistance to compression because of it does not contain the enhancing element.
Summary of the invention
The utility model purpose is to provide a kind of enhanced fiber unit at the demand and weak point; in the manufacture process of the unit of optical fiber; increase the protective seam that improves optical fiber opposing outside destroy in the periphery of optical fiber; constitute enhanced fiber unit; make fiber unit in and photoelectricity composite cable construction maintenance process stranded, can bear certain pulling force and mechanical pressure with the cable core stranding; guarantee the integrity of optical fiber, thereby keep its excellent communications function.
Enhanced fiber unit is to take following technical scheme to realize: enhanced fiber unit comprises some optical fiber, optical fiber factice for filling, fiber optic protection layer, fabric reinforcement (enhancing element), strengthens outer jacket.Be enclosed with the fiber optic protection layer in outer fiber, between the some optical fiber in the fiber optic protection layer optical fiber factice for filling arranged, fabric reinforcement (enhancing element) is arranged in fiber optic protection layer outside, there is the reinforcement outer jacket fabric reinforcement (enhancing element) outside.
The optical fiber master is machined through thickness by high-purity quartz.The fiber optic protection layer is that hard-pressed bale or bale breaking are in the plastic protective layer of outside of fiber.Fabric reinforcement (enhancing element) is nonmetallic high strength fibre yarn.Strengthening outer jacket can be the extrusion type plastic sheath, also can be extrusion type elastic body class sheath material.Contain 2~96 optical fiber in the fiber unit.
The enhanced fiber unit method for making:
1, the some optical fiber 1 that will be coated with chromatogram are put on the permanent tension stringing frame, and setting the optical fiber laying tension is 70~90g; Described optical fiber is provided with 2~96;
2, some optical fiber 1 are drawn from pay off rack, combine in the extrusion die of introducing extruding machine, extrusion die is the self centring mould, squeezes tubular type;
3, adjust the working temperature of extruding of extruding machine; operating temperature range is 160~240 ℃; adjust the extrusion die position; make mold center and equipment center point be in same horizontal level, the peripheral clearance of core rod and die sleeve is started extruding machine apart from equalization; extrude one deck PBT plastic protective sleeve pipe as the fiber optic protection layer some outside of fiber; be the fiber optic protection layer, fill the optical fiber factice for filling simultaneously between some optical fiber and fiber optic protection layer, the optical fiber factice for filling adopts greasy for preventing water.After coming out from the head of extruding machine, to cool off on the fiber optic protection layer through bosh, bosh is divided into 6 sections, every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 70~90 ℃, 50~70 ℃, 35~45 ℃, 15~25 ℃, 15~25 ℃, 15~25 ℃ successively, tension force take-up mode, takeup tension 15~255N are adopted in take-up, take-up;
4, contain fiber optic protection layer outside winding one deck fabric reinforcement (enhancing element) of some optical fiber more than the general, fabric reinforcement (enhancing element) adopts high strength glass fiber or high strength to spin the synthetic fibre yarn, and fortifying fibre is generally 5~20.Extrude one deck simultaneously by another extruding machine simultaneously and strengthen outer jacket, make enhanced fiber unit.The extrusion temperature of respectively distinguishing of extruding machine is strict controlled between 150~260 ℃, and temperature deviation is no more than ± and 5 ℃.The high strength fibre of fabric reinforcement (enhancing element) will closely cover fiber optic protection layer outside.Strengthen outer jacket and will have good water-proof function.Strengthening outer jacket and can adopt waterproof extrusion plastic sheath, also can be elastic body class sheath material.Strengthening outer jacket will cool off through bosh after the head of extruding machine comes out, bosh is divided into 6 sections, every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 55~65 ℃, 35~45 ℃, 25~35 ℃, 15~25 ℃, 15~25 ℃, 15~25 ℃ successively, and tension force take-up mode is adopted in take-up, take-up, takeup tension 40~60N receives the enhanced fiber unit of making on cable drum.
Fiber unit of the present invention can be used for electric pressure and is 1kV in the 500kV power cable, several 1~5 cores of cable core.
The invention has the beneficial effects as follows: enhanced fiber unit of the present invention and preparation method thereof; in the manufacture process of the unit of optical fiber; increase the protective seam that improves optical fiber opposing outside destroy in the periphery of optical fiber; constitute enhanced fiber unit; make fiber unit in and photoelectricity composite cable construction maintenance process stranded, can bear certain pulling force and mechanical pressure with the cable core stranding; guarantee the integrity of optical fiber, thereby keep its excellent communications function.By adopting non-metal reinforced layer, not only improved the tensile property of fiber unit, and reduced, the influence of metallicity reinforcement because of the cable electric field effects.Under the power cable effect of electric field, non-metal reinforced layer can not produce induction current, thereby reduces the electric energy loss of cable, has prolonged the serviceable life of cable and fiber unit.
Description of drawings
Below with reference to accompanying drawing utility model is described further:
Fig. 1 is the enhanced fiber unit structural representation.
Embodiment
With reference to accompanying drawing 1, enhanced fiber unit comprises some optical fiber 1, optical fiber factice for filling 2, fiber optic protection layer 3, fabric reinforcement (enhancing element) 4, strengthens outer jacket 5.Be wrapped with fiber optic protection layer 3 in some optical fiber 1 external packets; between the some optical fiber in fiber optic protection layer 3 optical fiber factice for filling 2 is arranged; fabric reinforcement (enhancing element) 4 is arranged in fiber optic protection layer outside, and there is the outer jacket 5 of reinforcement fabric reinforcement (enhancing element) 4 outsides.
Optical fiber 1 master machined through thickness by high-purity quartz.Described fiber optic protection layer 3 adopts hard-pressed bale or bale breaking in the plastic protective layer (PBT pine sleeve pipe) of outside of fiber.Described fabric reinforcement (enhancing element) adopts nonmetallic high strength fibre yarn.Described reinforcement outer jacket can be a waterproof extrusion plastic sheath, also can be elastic body class sheath material.Contain 2~96 optical fiber in the fiber unit.
Described enhanced fiber unit not only comprises the optical fiber 1 of the usefulness of communicating by letter, protection optical fiber factice for filling 2, and fiber optic protection layer 3 (fiber optic protection PBT pipe) comprises that also optical fiber strengthens element 4 and reinforcement outer jacket 5.Described optical fiber factice for filling 2 can adopt commercially available greasy for preventing water.
Described enhanced fiber unit is characterized in that optical fiber 1 is positioned over the center of each protective seam and reinforcing element, enhancement Layer.
Described enhanced fiber unit is characterized in that the reinforcing element material is the high strength fibre yarn.
Enhanced fiber unit of the present invention is used in the cable that electric pressure is 1kV~500kV, constitutes with power cable to can be used for the photoelectricity composite cable that electric power and information (communication) are transmitted as one.
Enhanced fiber unit and preparation method thereof:
1, the some optical fiber 1 that will be coated with chromatogram are put on the permanent tension stringing frame, and setting the optical fiber laying tension is 70~90g; Described optical fiber is provided with 2~96;
2, some optical fiber 1 are drawn from pay off rack, combine in the extrusion die of introducing extruding machine, extrusion die is the self centring mould, squeezes tubular type;
3, adjust the working temperature of extruding of extruding machine; operating temperature range is 160~240 ℃; adjust the extrusion die position; make mold center and equipment center point be in same horizontal level, the peripheral clearance of core rod and die sleeve is started extruding machine apart from equalization; extrude one deck PBT plastic protective sleeve pipe as the fiber optic protection layer some outside of fiber; be fiber optic protection layer 3, fill optical fiber factice for filling 2 simultaneously between some optical fiber and fiber optic protection layer, optical fiber factice for filling 2 adopts greasy for preventing water.After coming out from the head of extruding machine, to cool off on the fiber optic protection layer through bosh, bosh is divided into 6 sections, every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 70~90 ℃, 50~70 ℃, 35~45 ℃, 15~25 ℃, 15~25 ℃, 15~25 ℃ successively, tension force take-up mode, takeup tension 15~255N are adopted in take-up, take-up;
4, the PBT fiber optic protection layer 3 outside winding one deck fabric reinforcements (enhancing element) 4 that contain some optical fiber more than the general, fabric reinforcement (enhancing element) 4 adopts high strength glass fibers or high strength to spin the synthetic fibre yarn, and fortifying fibre is generally 5~20.Extrude one deck simultaneously by another extruding machine simultaneously and strengthen outer jacket 5, make increase type fiber unit.The extrusion temperature of respectively distinguishing of extruding machine is strict controlled between 150~260 ℃, and temperature deviation is no more than ± and 5 ℃.The high strength fibre of fabric reinforcement 4 will closely cover fiber optic protection layer 3 outside.Strengthen outer jacket 5 and will have good water-proof function.Strengthen outer jacket 5 and adopt waterproof extrusion plastic sheath, it also can be elastic body class sheath material, fabric reinforcement (enhancing element) 4 is outer to extrude and strengthens outer jacket 5 and will cool off through bosh after the head of extruding machine comes out, bosh is divided into 6 sections, every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 55~65 ℃ successively, 35~45 ℃, 25~35 ℃, 15~25 ℃, 15~25 ℃, 15~25 ℃, take-up, tension force take-up mode is adopted in take-up, takeup tension 40~60N receives the enhanced fiber unit of making on cable drum.

Claims (6)

1. enhanced fiber unit; it is characterized in that comprising some optical fiber, optical fiber factice for filling, fiber optic protection layer, fabric reinforcement, reinforcement outer jacket; be enclosed with the fiber optic protection layer in outer fiber; between the some optical fiber in the fiber optic protection layer optical fiber factice for filling is arranged; in fiber optic protection layer outside fabric reinforcement is arranged, there is the reinforcement outer jacket fabric reinforcement outside.
2. enhanced fiber unit according to claim 1 is characterized in that described fiber optic protection layer adopts hard-pressed bale or bale breaking in the plastic protective layer of outside of fiber.
3. enhanced fiber unit according to claim 1 is characterized in that described fabric reinforcement is nonmetallic high strength fibre yarn.
4. enhanced fiber unit according to claim 1 is characterized in that described reinforcement outer jacket adopts waterproof extrusion plastic sheath.
5. enhanced fiber unit according to claim 1 is characterized in that described optical fiber is provided with 2~96.
6. enhanced fiber unit according to claim 1 is characterized in that described optical fiber factice for filling adopts greasy for preventing water.
CN2010202813579U 2010-08-04 2010-08-04 Reinforcing optical fiber unit Expired - Lifetime CN201740900U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2010202813579U CN201740900U (en) 2010-08-04 2010-08-04 Reinforcing optical fiber unit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101923198A (en) * 2010-08-04 2010-12-22 中天科技海缆有限公司 Enhanced fiber unit and manufacturing method thereof
CN104570245A (en) * 2014-12-16 2015-04-29 成都亨通光通信有限公司 Novel 8-shaped self-supporting optical cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101923198A (en) * 2010-08-04 2010-12-22 中天科技海缆有限公司 Enhanced fiber unit and manufacturing method thereof
CN101923198B (en) * 2010-08-04 2012-05-09 中天科技海缆有限公司 Enhanced fiber unit and manufacturing method thereof
CN104570245A (en) * 2014-12-16 2015-04-29 成都亨通光通信有限公司 Novel 8-shaped self-supporting optical cable

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Granted publication date: 20110209

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