CN105859122B - Drawing optical fibers technique - Google Patents
Drawing optical fibers technique Download PDFInfo
- Publication number
- CN105859122B CN105859122B CN201610197261.6A CN201610197261A CN105859122B CN 105859122 B CN105859122 B CN 105859122B CN 201610197261 A CN201610197261 A CN 201610197261A CN 105859122 B CN105859122 B CN 105859122B
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- Prior art keywords
- cooling
- water
- cooling water
- sodium chloride
- calibration tube
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/0253—Controlling or regulating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Abstract
The invention discloses a kind of drawing optical fibers techniques, include the following steps：1) melt drawing process：Prefabricated rods are melted at 2200 DEG C 2300 DEG C, by the sagging wire drawing of its own gravity；2) sizing cooling process：Sagging silk thread is by being cooled to 500 DEG C 600 DEG C after calibration tube；3) wire drawing cooling process：Silk thread is further cooled to 30 DEG C 80 DEG C by cooling device；Calibration tube in the step 2) is cooled down by cooling water, and cooling water is recycled by the circulatory system, and is carried out in cyclic process except miscellaneous operation；Water conservancy diversion rib is equipped in the cooling layer of calibration tube, the first metal tube of water conservancy diversion rib spiral winding is arranged, is connected with cooling water in the cooling layer, cooling water is moved along water conservancy diversion rib.The present invention designs a kind of drawing optical fibers technique, by the way that cooling water in calibration tube is cleaned and recycled, reduces influence of the dirt to heat exchange effect, more efficiently ensure that the cooling effect of cooling water；Anti-deformation, heat exchange are played a part of using the water conservancy diversion rib of screw arrangement simultaneously.
Description
Technical field
The present invention relates to optical fiber production field, more particularly to a kind of drawing optical fibers technique.
Background technology
Optical fiber is writing a Chinese character in simplified form for optical fiber, is a kind of fiber made of glass or plastics, light can be used as to conduct tool.Light
Fiber is led to be made of the different glass of two layers of refractive index, internal layer be light inner core, diameter at several microns to tens microns, outer layer
0.1~0.2mm of diameter.The refractive index of general core glass is bigger than glass outer by 1%.According to the refraction of light and total reflection principle,
When light is mapped to the angle of inner core and outer bed boundary more than the critical angle for generating total reflection, the impervious interface of light is all anti-
It penetrates.Optical fiber used in communication is usually silica fibre at present.The chemical name of quartz is silica (SiO2), it and we
The main component for being commonly used to the sand used in building day is identical.But optical fiber made of common quartz material be cannot
For communication.Telecommunication optical fiber must be made of the material of very high purity；But, micro doping is mixed in material of main part
Agent can be slightly different the refractive index of fibre core and covering, this is conducive to communication.There are many method for manufacturing optical fiber, at present
Mainly have：CVD (chemical vapor deposition) method in pipe, CVD method, PCVD (plasma chemical vapor deposition) methods and VAD (axis in stick
To gas deposition) method.However, with any method, prefabricated rods will be first made at high temperature, are then heated in high temperature furnace
Softening, pulls into long filament, then coated, plastic sleeve, becomes optical fibre core.
Existing optical fiber production process includes melt drawing process, sizing cooling process, wire drawing cooling process, coating work
Sequence, curing process, in cooling technique of shaping, existing technology does not have rational cooling water recycling, impurity removal process, cooling water letter
Reflux utilization is singly carried out, the waste of a large amount of cooling water is caused, increases production cost.And calibration tube helium in cooling process of shaping
The temperature of gas chamber reaches more than 1000 DEG C, and the temperature of metal tube being in direct contact with cooling water is very high, is flowed out after cooling water circulation
Temperature reaches 60-80 DEG C, and the hard water (containing higher Ca ions and Mg ions etc.) of slant acidity easily corrodes fixed at such a temperature
The inner wall of metal tube in type pipe, and easily generate dirt and overstock in inner wall of metal tube, influence the heat exchange efficiency of cooling water so that cold
But effect cannot be controlled effectively (sizing cooling technique requires sagging silk thread slow cooling to 500-600 DEG C), technique
It is unstable and with higher product fraction defective, reduce the maintenance period of calibration tube, and with higher maintenance cost, increase
The waste and loss of cooling water, improves production cost.
Invention content
The present invention is to provide a kind of drawing optical fibers technique so that existing drawing optical fibers technique is untreated, unrestrained in cooling water
The defects of Fei great, unstable calibration tube cooling effect, is addressed.
To solve the above problems, the invention discloses a kind of drawing optical fibers technique, include the following steps：
1) melt drawing process：Prefabricated rods are melted at 2200 DEG C -2300 DEG C, by the sagging wire drawing of its own gravity；
2) sizing cooling process：Sagging silk thread is by being cooled to 500 DEG C -600 DEG C after calibration tube；
3) wire drawing cooling process：Silk thread is further cooled to 30 DEG C -80 DEG C by cooling device；
Calibration tube in the step 2) is cooled down by cooling water, and the cooling water recycles profit by the circulatory system
With, and carried out in cyclic process except miscellaneous operation；The calibration tube is equipped with the first metal tube, the second metal successively from outside to inside
The lateral wall of pipe, heat preservation carbon pipe and graphitic carbon pipe, the madial wall of the first metal tube and the second metal tube forms cooling layer, described cold
But water conservancy diversion rib is equipped in layer, the first metal tube of the water conservancy diversion rib spiral winding is arranged, cooling water is connected in the cooling layer, is cooled down
Water is moved along water conservancy diversion rib.The present invention designs a kind of drawing optical fibers technique, by the way that profit is cleaned and recycled to cooling water in calibration tube
With reducing influence of the dirt to heat exchange effect, be effectively guaranteed the cooling effect of cooling water；Simultaneously using screw arrangement
Water conservancy diversion rib can play reinforcing rib, further effectively reduce dilatancy of the metal tube under high temperature, improve it is fixed
The service life of type pipe.Second metal tube movement of the water conservancy diversion rib guide cooling water inside calibration tube, increases heat-exchange time, makes
Cooling water is obtained fully to exchange heat with metal tube；Using heat conductor, the heat dissipation area for also further increasing metal tube carries water conservancy diversion rib simultaneously
The high heat exchange effect with cooling water.
Optionally, the material of the water conservancy diversion rib is copper.Using copper as water conservancy diversion rib, copper is the good conductor of heat, while copper
It is not easy to get rusty, is further reduced corrosion of the cooling water to it, improves service life, reduce maintenance cost.
Optionally, the calibration tube connection cooling water recirculation system；The cooling water recirculation system includes water softener and cold
But device, the water softener downside are equipped with inlet pipeline, and the inlet pipeline, which passes through, to be connected after cooler on the downside of calibration tube；It is described soft
It is connected on the upside of calibration tube by outlet pipeline on the upside of hydrophone；The water softener side is equipped with side siphunculus road, and the side siphunculus road connects
Logical inlet pipeline and outlet pipeline；The cooler includes sodium chloride solution storage tank and refrigerator, and the inlet pipeline passes through chlorine
Change the liquid heat-exchange in sodium solution storage tank, with sodium chloride solution storage tank, the sodium chloride solution storage tank is connected by return line
Connect water softener upper end；Sodium chloride solution also cleans water softener by freezing mechanism cold, the sodium chloride solution as regenerated liquid.It adopts
With above-mentioned cooling water recirculation system, setting water softener has effectively handled Ca ions and Mg ions in cooling water etc., has used
Sodium chloride solution cools down inlet pipeline as cooling agent, and the temperature of sodium chloride solution can be controlled at -3 DEG C -10 DEG C, just
In the temperature for reducing cooling water in inlet pipeline quickly, the length of cooling water circulation pipeline can be greatly shortened, convenient for should
Device installs the scene of optical fiber production, and sodium chloride solution can as the regenerated liquid of water softener, by setting up side siphunculus road,
It can realize that on-line cleaning regenerates water softener, reduce the preparation before production, reducing that water softener goes wrong may be right
The influence that calibration tube uses, this is simple for structure effectively, reduces the floor space of a whole set of circulator.
Optionally, the inlet pipeline is equipped with filter.Setting filter effectively filter the dirt carried in cooling water,
The impurity such as metal fillings.
Optionally, the temperature of the sodium chloride solution is controlled at 0 DEG C -15 DEG C.By the temperature of sodium chloride solution control 0 DEG C-
15 DEG C, it can rapidly cool down the temperature of inlet pipeline.
Optionally, flow control valve is equipped at the nearly calibration tube of the inlet pipeline.Setting flow control valve simultaneously passes through flow
Control valve efficiently controls the flow of cooling water in calibration tube.
Compared with prior art, the technical program has the following advantages：
The present invention designs a kind of drawing optical fibers technique, by the way that cooling water in calibration tube is cleaned and recycled, reduces
Influence of the dirt to heat exchange effect, more efficiently ensure that the cooling effect of cooling water, ensures the stabilization of technique and reduces
Product fraction defective, increases the maintenance period of calibration tube, reduces maintenance cost, reduce the waste and loss of cooling water,
Reduce production cost.Reinforcing rib can be played using the water conservancy diversion rib of screw arrangement, metal tube is further effectively reduced and exist
Dilatancy under high temperature, the service life for improving calibration tube.Water conservancy diversion rib guide cooling water inside calibration tube second
Metal tube moves, and increases heat-exchange time so that cooling water fully exchanges heat with metal tube；Water conservancy diversion rib uses heat conductor simultaneously,
The heat dissipation area for further increasing metal tube improves heat exchange effect with cooling water.
It is the good conductor of heat, and copper is not easy to get rusty, and is further reduced cooling in addition, using copper as water conservancy diversion rib
Corrosion of the water to it, improves service life, reduces maintenance cost.Using above-mentioned cooling water recirculation system, soft water is set
Device has effectively handled Ca ions and Mg ions in cooling water etc., using sodium chloride solution as cooling agent to inlet pipeline into
Row cooling, the temperature of sodium chloride solution can be controlled at -3 DEG C -10 DEG C, convenient for reducing the temperature of cooling water in inlet pipeline quickly
Degree can greatly shorten the length of cooling water circulation pipeline, and convenient for the device to be installed to the scene of optical fiber production, and sodium chloride is molten
Liquid, by setting up side siphunculus road, can realize that on-line cleaning regenerates water softener, reduce again as the regenerated liquid of water softener
Preparation before production, reduce water softener go wrong may to the influence that calibration tube uses, this it is simple for structure effectively, greatly
The big floor space for reducing a whole set of circulator.
Setting filter effectively filters the impurity such as the dirt carried in cooling water, metal fillings.By the temperature of sodium chloride solution
0 DEG C -15 DEG C of control can rapidly cool down the temperature of inlet pipeline.Setting flow control valve and to pass through flow control valve effective
The flow of cooling water in ground control calibration tube.The configuration of the present invention is simple works well, is of low cost.
Description of the drawings
Fig. 1 is the process flow chart of the embodiment of the present invention；
Fig. 2 is the calibration tube of the embodiment of the present invention and the structure diagram of cooling recirculation system；
Fig. 3 is the structure diagram of the calibration tube of the embodiment of the present invention；
Fig. 4 is the second metal tube of the embodiment of the present invention and cooling ribs structure diagram.
1st, calibration tube, the 2, first metal tube, the 3, second metal tube, 4, heat preservation carbon pipe, 5, graphitic carbon pipe, 6, cooling layer, 7,
Water conservancy diversion rib, 8, cooling water recirculation system, 9, filter, 10, flow control valve, 81, water softener, 82, cooler, 83, water inlet pipe
Road, 84, outlet pipeline, 85 side siphunculus roads, 86, sodium chloride solution storage tank, 87, refrigerator, 88, return line.
Specific embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, clear, complete description is carried out to technical scheme of the present invention.
The invention discloses a kind of drawing optical fibers techniques, include the following steps (see attached drawing 1)：
1) melt drawing process：Prefabricated rods are melted at 2200 DEG C -2300 DEG C, by the sagging wire drawing of its own gravity；
2) sizing cooling process：Sagging silk thread is by being cooled to 500 DEG C -600 DEG C after calibration tube；
3) wire drawing cooling process：Silk thread is further cooled to 30 DEG C -80 DEG C by cooling device.
2) also requirement controls its rate of temperature fall to this processing step, avoids cooling rate too fast, influences the items machinery of product
Performance.
Embodiment：The invention discloses a kind of embodiment of calibration tube (see attached drawings 2,3,4), can be applied in step 2),
Calibration tube 1 is cooled down by cooling water, and the cooling water is recycled by the circulatory system, and is removed in cyclic process
Miscellaneous operation；The calibration tube 1 is equipped with the first metal tube 2, the second metal tube 3, heat preservation carbon pipe 4 and graphitic carbon pipe successively from outside to inside
5, the lateral wall of the madial wall of the first metal tube 2 and the second metal tube 3 forms cooling layer 6, and water conservancy diversion rib is equipped in the cooling layer 6
7,7 first metal tube of spiral winding 2 of water conservancy diversion rib is arranged, is connected with cooling water in the cooling layer 6, and cooling water is along water conservancy diversion rib 7
Movement.The present invention reduces influence of the dirt to heat exchange effect, more by the way that cooling water in calibration tube is cleaned and recycled
Add the cooling effect for being effectively guaranteed cooling water, ensure stablizing for technique and reduce product fraction defective, increase calibration tube
Maintenance period, reduce maintenance cost, reduce the waste and loss of cooling water, reduce production cost.Using spiral cloth
The water conservancy diversion rib 7 put can play reinforcing rib, further effectively reduce dilatancy of the metal tube under high temperature, improve
The service life of calibration tube.Second metal tube 3 of 7 guide cooling water of water conservancy diversion rib inside calibration tube moves, when increasing heat exchange
Between so that cooling water fully exchanges heat with metal tube；Water conservancy diversion rib 7 also further increases the heat dissipation of metal tube using heat conductor simultaneously
Area improves the heat exchange effect with cooling water.
The material of the water conservancy diversion rib 7 is copper.It is the good conductor of heat, while copper is not easy using copper as water conservancy diversion rib 7
It gets rusty, is further reduced corrosion of the cooling water to it, improves service life, reduce maintenance cost.In practical production
Cheng Zhongke needs to replace using with chromium plating stainless steel material according to cost is actually reduced, but its heat conductivility can be weaker,
Its intensity strengthened can be higher, but it is once be corroded, it may be difficult to handle the iron rust that water conservancy diversion ribbed belt enters.
The calibration tube 1 connects cooling water recirculation system 8；The cooling water recirculation system 8 includes water softener 81 and cooling
Device 82,81 downside of water softener are equipped with inlet pipeline 83, and the inlet pipeline 83 after cooler 82 by connecting under calibration tube 1
Side；81 upside of water softener connects 1 upside of calibration tube by outlet pipeline 84；81 side of water softener is equipped with side siphunculus road
85, the side siphunculus road 85 connects inlet pipeline 83 and outlet pipeline 84；The cooler 82 includes sodium chloride solution storage tank 86
With refrigerator 87, the inlet pipeline 83 passes through the liquid heat in sodium chloride solution storage tank 86, with sodium chloride solution storage tank 86 to hand over
It changes, the sodium chloride solution storage tank 86 connects 81 upper end of water softener by return line 88；Sodium chloride solution passes through refrigerator 87
Refrigeration, the sodium chloride solution also clean water softener 91 as regenerated liquid.Using above-mentioned cooling water recirculation system, soft water is set
Device 81 has effectively handled Ca ions and Mg ions in cooling water etc., using sodium chloride solution as cooling agent to inlet pipeline
83 are cooled down, and the temperature of sodium chloride solution can be controlled at -3 DEG C -10 DEG C, are cooled down convenient for reducing quickly in inlet pipeline 83
The temperature of water can greatly shorten the length of cooling water circulation pipeline, convenient for by the scene of device installation optical fiber production, and chlorine
Change sodium solution, by setting up side siphunculus road 85, can realize that on-line cleaning regeneration is soft as the regenerated liquid of water softener 81 again
Hydrophone 81 reduces the preparation before production, reduces water softener 81 and goes wrong the influence that may be used calibration tube 1,
This is simple for structure effectively, greatly reduces the floor space of a whole set of circulator.Return line is connected to chlorination in the present embodiment
Sodium storage tank exchanges the end of heat with inlet pipeline, and the temperature of the sodium chloride solution after heat exchange is higher (about 20-35 DEG C),
It is preferable in effect for being cleaned to water softener.
The inlet pipeline 83 is equipped with filter 9.Dirt, the gold carried in setting filter 9 effectively filtering cooling water
Belong to the impurity such as bits.The temperature of the sodium chloride solution is controlled at 0 DEG C -15 DEG C.The temperature of sodium chloride solution is controlled 0 DEG C -15 DEG C,
The temperature of inlet pipeline 83 can rapidly be cooled down.Flow control valve 10 is equipped at the 83 nearly calibration tube 1 of inlet pipeline.Setting
Flow control valve 10 simultaneously passes through the flow that flow control valve 10 efficiently controls cooling water in calibration tube 1.Sodium chloride solution controls
It is relatively low in 10 DEG C or so its cooler operation energy consumptions, it can also reach the cooling effect of cooling water under certain flow rate, preferably to select
.
When the embodiment of the present invention is implemented, cooling water is softened by water softener, and the cooling water after softening is filtered by filter,
Cooling water is through subcooler.Cooler realizes refrigeration by freezing the sodium chloride solution in mechanism cold sodium chloride solution storage tank,
Sodium chloride solution after cooling realizes the cooling of cooling water with exchanging heat through subcooler outlet pipeline, and cooling water enters sizing
Pipe, moves upwards along diversion pipe and cools down to the metal tube of calibration tube, the hot water after heat exchange is flowed back into soft by outlet pipeline
Hydrophone.
When carrying out cleaning and regeneration to water softener, the valve that outlet pipeline enters water softener is closed, opening side leads to pipeline valve
Door, ensureing the cycle of cooling water will not interrupt；At the same time, the sodium chloride solution of sodium chloride solution storage tank can directly pass through reflux
Pipeline enters water softener, carries out cleaning and regeneration to water softener, waste liquid directly exhausts after cleaning.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, and according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (4)
1. a kind of drawing optical fibers technique, which is characterized in that include the following steps：
1) melt drawing process：Prefabricated rods are melted at 2200 DEG C -2300 DEG C, by the sagging wire drawing of its own gravity；
2) sizing cooling process：Sagging silk thread is by being cooled to 500 DEG C -600 DEG C after calibration tube；
3) wire drawing cooling process：Silk thread is further cooled to 30 DEG C -80 DEG C by cooling device；
Calibration tube in the step 2) is cooled down by cooling water, and the cooling water is recycled by the circulatory system, and
It is carried out in cyclic process except miscellaneous operation；The calibration tube is equipped with the first metal tube, the second metal tube, heat preservation successively from outside to inside
The lateral wall of carbon pipe and graphitic carbon pipe, the madial wall of the first metal tube and the second metal tube forms cooling layer, in the cooling layer
Equipped with water conservancy diversion rib, the first metal tube of the water conservancy diversion rib spiral winding is arranged, cooling water is connected in the cooling layer, and cooling water edge is led
Flow rib movement；
The material of the water conservancy diversion rib is copper；
The calibration tube connects cooling water recirculation system；The cooling water recirculation system includes water softener and cooler, described soft
Inlet pipeline is equipped on the downside of hydrophone, the inlet pipeline after cooler by connecting on the downside of calibration tube；It is logical on the upside of the water softener
It crosses on the upside of outlet pipeline connection calibration tube；The water softener side is equipped with side siphunculus road, and the side leads to pipeline connection inlet pipeline
And outlet pipeline；The cooler includes sodium chloride solution storage tank and refrigerator, and the inlet pipeline is stored up across sodium chloride solution
Liquid heat-exchange in tank, with sodium chloride solution storage tank, the sodium chloride solution storage tank are connected by return line on water softener
End；Sodium chloride solution also cleans water softener by freezing mechanism cold, the sodium chloride solution as regenerated liquid.
2. drawing optical fibers technique as described in claim 1, which is characterized in that the inlet pipeline is equipped with filter.
3. drawing optical fibers technique as described in claim 1, which is characterized in that the sodium chloride solution temperature control 0 DEG C-
15℃。
4. drawing optical fibers technique as described in claim 1, which is characterized in that flow is equipped at the nearly calibration tube of inlet pipeline
Control valve.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373331.8A CN108545927B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201810587568.6A CN108726870B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201610197261.6A CN105859122B (en) | 2016-03-31 | 2016-03-31 | Drawing optical fibers technique |
| CN201810587526.2A CN108609846B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197261.6A CN105859122B (en) | 2016-03-31 | 2016-03-31 | Drawing optical fibers technique |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587526.2A Division CN108609846B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201810373331.8A Division CN108545927B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201810587568.6A Division CN108726870B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105859122A CN105859122A (en) | 2016-08-17 |
| CN105859122B true CN105859122B (en) | 2018-06-26 |
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ID=56627375
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587568.6A Active CN108726870B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201610197261.6A Active CN105859122B (en) | 2016-03-31 | 2016-03-31 | Drawing optical fibers technique |
| CN201810373331.8A Active CN108545927B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201810587526.2A Active CN108609846B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810587568.6A Active CN108726870B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810373331.8A Active CN108545927B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
| CN201810587526.2A Active CN108609846B (en) | 2016-03-31 | 2016-03-31 | Optical fiber drawing process |
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|---|---|---|---|---|
| CN113788613B (en) * | 2021-11-16 | 2022-02-15 | 成都中住光纤有限公司 | Optical fiber preparation system and method |
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| CN101531455A (en) * | 2009-04-27 | 2009-09-16 | 中天科技光纤有限公司 | Optical fiber drawing cooling system |
| CN203007128U (en) * | 2012-08-31 | 2013-06-19 | 成都捷康特科技有限公司 | Optical fiber cooling pipe |
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| DE3919953A1 (en) * | 1989-06-19 | 1990-12-20 | Rheydt Kabelwerk Ag | Cooling device for drawn light-conducting fibre - has internal body which can be opened into two halves surrounded by outer coolant body |
| US5043001A (en) * | 1990-05-29 | 1991-08-27 | Corning Incorporated | Method and apparatus for fiber cooling |
| JPH1160287A (en) * | 1997-08-07 | 1999-03-02 | Hitachi Cable Ltd | Drawing of optical fiber and drawing device used therefor |
| US6125638A (en) * | 1998-08-21 | 2000-10-03 | The Boc Group, Inc. | Optical fiber cooling process |
| CN201713431U (en) * | 2010-06-25 | 2011-01-19 | 长飞光纤光缆有限公司 | Device for drawing and cooling optical fiber |
| FR2967154A1 (en) * | 2010-11-08 | 2012-05-11 | Delachaux Sa | COOLING DEVICE FOR IMPROVED OPTICAL FIBER |
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| CN103274593B (en) * | 2013-04-27 | 2015-07-08 | 江苏亨通光纤科技有限公司 | On-line cooling method using hydrogen in optical fiber drawing process |
| CN103848565B (en) * | 2013-11-06 | 2016-08-31 | 长飞光纤光缆股份有限公司 | The outer legal system of a kind of pipe makes the apparatus and method of preform |
| CN104891827A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Process for optical fiber drawing and primary coating |
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- 2016-03-31 CN CN201810587568.6A patent/CN108726870B/en active Active
- 2016-03-31 CN CN201610197261.6A patent/CN105859122B/en active Active
- 2016-03-31 CN CN201810373331.8A patent/CN108545927B/en active Active
- 2016-03-31 CN CN201810587526.2A patent/CN108609846B/en active Active
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| TW200422578A (en) * | 2003-04-03 | 2004-11-01 | Air Liquide | Heat exchanger system for cooling optical fibers |
| CN101531455A (en) * | 2009-04-27 | 2009-09-16 | 中天科技光纤有限公司 | Optical fiber drawing cooling system |
| CN203007128U (en) * | 2012-08-31 | 2013-06-19 | 成都捷康特科技有限公司 | Optical fiber cooling pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108609846A (en) | 2018-10-02 |
| CN108726870A (en) | 2018-11-02 |
| CN108545927B (en) | 2020-09-25 |
| CN108726870B (en) | 2020-12-18 |
| CN108609846B (en) | 2020-11-13 |
| CN105859122A (en) | 2016-08-17 |
| CN108545927A (en) | 2018-09-18 |
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