CN105819679A - Optical fiber cooling system under high speed wire drawing - Google Patents
Optical fiber cooling system under high speed wire drawing Download PDFInfo
- Publication number
- CN105819679A CN105819679A CN201610148943.8A CN201610148943A CN105819679A CN 105819679 A CN105819679 A CN 105819679A CN 201610148943 A CN201610148943 A CN 201610148943A CN 105819679 A CN105819679 A CN 105819679A
- Authority
- CN
- China
- Prior art keywords
- cooling
- described cooling
- cooling tube
- tube
- optical fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02718—Thermal treatment of the fibre during the drawing process, e.g. cooling
-
- 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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/42—Drawing at high speed, i.e. > 10 m/s
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/50—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket
- C03B2205/52—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket by direct contact with liquid coolant, e.g. as spray, mist
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/55—Cooling or annealing the drawn fibre prior to coating using a series of coolers or heaters
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/57—Recovering, recycling or purifying the coolant, e.g. helium
Abstract
The invention discloses an optical fiber cooling system under high speed wire drawing. The cooling system comprises a plurality of cooling tubes. A cooling tube inner cavity, through which a naked cable can go, is arranged in the middle of each cooling tube. A cooling tube middle cavity and a cooling tube outer cavity are also arranged on the middle of the cooling tube from inner to outer. The exterior of the cooling tube outer cavity is wrapped by an external insulation layer. The upper end of each cooling tube is connected to a gas recovering device, and the lower end is connected to a gas pipeline joint, from which cooling gas can enter the cooling tube. The low end of the gas pipeline joint is connected to a coating device. The lower end of one side of each cooling tube is provided with a cooling liquid inlet, and the upper end is provided with a cooling liquid outlet. The inner ends of the cooling liquid inlet and the cooling liquid outlet are communicated with the cooling tube middle cavity, and the outer ends are communicated with a cooling circulation device. By combining the cooling liquid cyclically flowing in the cooling tube middle cavity and cooling gas in the inner cavity of cooling tubes, the cooling efficiency is improved, the cooling distance is shortened, thus the wire drawing speed is increased, high speed wire drawing is realized, the production cost of optical fiber is reduced, and at the same time, the using amount of cooling gas is reduced.
Description
Technical field
The present invention relates to optical fiber cooling system, the optical fiber cooling system being specifically related under a kind of high-speed wire-drawing.
Background technology
Optical fiber, in preparation process, needs first to be melted in fiber drawing furnace by preform, then draws, receive silk, become semi-finished product after supercooling, coating solidification.Preform is in the temperature of fiber drawing furnace about at 2000～2200 DEG C, and therefore the temperature of optical fiber plug for outlet is the highest, and particularly in the case of drawing at a high speed, the plug for outlet temperature of optical fiber is up to 1400～1700 DEG C.And naked fine temperature during optical fiber coating needs to control at 50～100 DEG C, even if using the coating of high temperature coating, it is also desirable to make naked fine temperature during optical fiber coating control within 120 DEG C, so the cooling of optical fiber is the most crucial.And wire-drawer-tower height degree certain when, drawing speed is the highest, the time of optical fiber cooling is the shortest, the cool time of extended fiber is carried out by improving the tower height of wire-drawer-tower, being difficulty with for a lot of producers, cost of investment is high, promotes DeGrain under (1800m/min～3200m/min) at a high speed, so it is crucial for improving cooling effectiveness, and existing equipment is generally unable to reach the cooling effectiveness of demand.
There is, in the case of carrying out high-speed wire-drawing in wire-drawer-tower, the problem that cooling effectiveness is the highest in the most existing optical fiber.
Summary of the invention
The technical problem to be solved is to there is, in the case of existing optical fiber carries out high-speed wire-drawing in wire-drawer-tower, the problem that cooling effectiveness is the highest.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is to provide the optical fiber cooling system under a kind of high-speed wire-drawing, the cooling tube being sequentially connected with including more piece, it is characterised in that
The middle part of described cooling tube has the cooling tube intracoelomic cavity passed through for bare fibre, described cooling tube is interval with cooling body intermediate cavity and the external chamber of cooling tube the most successively from described cooling tube intracoelomic cavity, the outer wrap in the external chamber of described cooling tube has external insulation, along described cooling tube intracoelomic cavity, topmost a upper end saving described cooling tube connects gas concentration unit, bottom one is saved the lower end of described cooling tube and is connected the gas pipeline joint entered for cooling gas, and the lower end of described gas pipeline joint connects coating unit；
The lower end of the side often saving described cooling tube is provided with cooling liquid inlet, upper end is provided with cooling liquid outlet, described cooling liquid inlet connects described cooling body intermediate cavity with the inner of described cooling liquid outlet, cooling-cycle device is connected in outer end, cooling liquid flows out from described cooling-cycle device, enter described cooling body intermediate cavity from described cooling liquid inlet, be back in described cooling-cycle device from described cooling liquid outlet after circulation.
In such scheme, the two ends up and down often saving described cooling tube are equipped with connecting tube, be connected by described connecting tube, be tightly connected by described connecting tube between lower end and the described coating unit of described gas pipeline joint between two described cooling tubes of arbitrary neighborhood.
In such scheme, between described cooling liquid inlet and described cooling liquid outlet and described cooling-cycle device, it is respectively equipped with the low-temperature cooling fluid circulating pump making coolant circulate in described cooling body intermediate cavity.
In such scheme, the number of described cooling body is 4～6 joints.
In such scheme, described cooling gas is helium, and intake is 2～8 liters/min.
In such scheme, the temperature controlling range in described cooling-cycle device is-100 degrees Celsius～20 degrees Celsius.
In such scheme, described coolant uses dehydrated alcohol or the aqueous solution of ethylene glycol.
In such scheme, a length of 1～1.5 meter of single described cooling body, described cooling tube intracoelomic cavity, cooling body intermediate cavity and described cooling tube external chamber concentric are arranged.
In such scheme, a diameter of 8～15 millimeters of described cooling tube intracoelomic cavity, and use polishing, the external chamber of described cooling tube is vacuum chamber.
The present invention, by combining at the cooling liquid of cooling body intermediate cavity internal circulation flow and the cooling gas being positioned at cooling tube intracoelomic cavity, improves cooling effectiveness, shorten cooling distance, thus promote drawing speed, it is achieved high-speed wire-drawing, reduce the production cost of optical fiber, also can reduce cooling gas usage simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional view of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail.
As shown in Figure 1, optical fiber cooling system under a kind of high-speed wire-drawing that the present invention provides, the cooling tube 10 being sequentially connected with including more piece, often the two ends up and down of joint cooling tube 10 are equipped with connecting tube 15, it is connected by connecting tube 15 between two cooling tubes 10 of arbitrary neighborhood, the number cooling down body 10 in the present invention is 4～6 joints, and 4～6 joint cooling bodys 10 are tightly connected by connecting tube 15, become an entirety.The middle part of cooling tube 10 has the cooling tube intracoelomic cavity 11 passed through for bare fibre 20, cooling tube 10 is cylindric, cooling body intermediate cavity 12 and the external chamber of cooling tube 13 it is interval with the most successively from cooling tube cavity 11, the outer wrap in the external chamber of cooling tube 13 has external insulation 14, external insulation 14 plays the effect of thermal insulation, prevents ambient temperature from increasing the temperature in cooling body intermediate cavity 12 and cooling tube intracoelomic cavity 11.
In the present invention a length of 1～1.5 meter of single cooling body 10, cooling tube intracoelomic cavity 11, cooling body intermediate cavity 12 and cooling tube external chamber 13 concentric are arranged.Wherein a diameter of 8～15 millimeters of cooling tube intracoelomic cavity 11, and use polishing, it is adaptable to and passing through of optical fiber 20, cooling body intermediate cavity 12 is applicable to cooling liquid and cycles through, the external chamber of cooling tube 13 is vacuum chamber, plays heat insulation effect together with external insulation 14.
Along cooling tube intracoelomic cavity 11, topmost the upper end of a joint cooling tube 10 connects gas concentration unit 30, its effect is to reclaim the cooling gas overflowed from cooling tube intracoelomic cavity 11, bottom one is saved the lower end of cooling tube 10 and is connected the gas pipeline joint 60 entered for cooling gas, the lower end of gas pipeline joint 60 connects coating unit 40, is sealed by connecting tube 15 and be connected between the lower end of gas pipeline joint 60 with coating unit 40.
Often the lower end of the side of joint cooling tube 10 is provided with cooling liquid inlet 51, upper end is provided with cooling liquid outlet 52, cooling liquid inlet 51 connects cooling body intermediate cavity 12 with the inner of cooling liquid outlet 52, cooling-cycle device 50 is connected in outer end, cooling liquid flows out from cooling-cycle device 50, enter cooling body intermediate cavity 12 from cooling liquid inlet 51, be back in cooling-cycle device 50 from cooling liquid outlet 52 after circulation.It is respectively equipped with between cooling liquid inlet 51 and cooling liquid outlet 52 and cooling-cycle device 50 and makes coolant low-temperature cooling fluid circulating pump 53 of circulation in cooling body intermediate cavity 12, make coolant circulate in cooling body lumen 12 by low-temperature cooling fluid circulating pump 53, keep low temperature.
In the present invention, coolant uses dehydrated alcohol or the aqueous solution of ethylene glycol.The aqueous solution of dehydrated alcohol or ethylene glycol is for having low specific heat capacity, low melting point and low viscous liquid, and the temperature control of cooling-cycle device 50 is at-100～20 DEG C, and when drawing speed 3000m/min, the temperature in cooling tube intracoelomic cavity 11 is-40 DEG C.
Cooling down gas in the present invention is highly purified helium, and intake is 2～8 liters/min, and the temperature in cooling tube intracoelomic cavity 11 is the lowest, and the amount of helium being passed through is the fewest.Wherein, when drawing speed is 3000m/min, when the temperature in cooling tube intracoelomic cavity 11 is-40 DEG C, helium gas flow is 8 liters/min.When bare fibre is by cooling tube intracoelomic cavity 11, cooling gas helium is passed through from gas pipeline joint 60, it is full of whole cooling system inner chamber 11, helium is as the medium of conduction of heat, heat exchange is carried out between bare fibre and cooling system, make bare fibre from 800～1200 DEG C, be reduced to 50～80 DEG C, by gas concentration unit 30, the helium overflowed is reclaimed in the top of cooling system.
The present invention, by combining at the cooling liquid of cooling body intermediate cavity internal circulation flow and the cooling gas being positioned at cooling tube intracoelomic cavity, improves cooling effectiveness, shorten cooling distance, thus promote drawing speed, it is achieved high-speed wire-drawing, reduce the production cost of optical fiber, also can reduce cooling gas usage simultaneously.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under the enlightenment of the present invention, and every have same or like technical scheme, within each falling within protection scope of the present invention with the present invention.
Claims (9)
1. the optical fiber cooling system under a high-speed wire-drawing, it is characterised in that include the cooling tube that more piece is sequentially connected with, it is characterised in that
The middle part of described cooling tube has the cooling tube intracoelomic cavity passed through for bare fibre, described cooling tube is interval with cooling body intermediate cavity and the external chamber of cooling tube the most successively from described cooling tube intracoelomic cavity, the outer wrap in the external chamber of described cooling tube has external insulation, along described cooling tube intracoelomic cavity, topmost a upper end saving described cooling tube connects gas concentration unit, bottom one is saved the lower end of described cooling tube and is connected the gas pipeline joint entered for cooling gas, and the lower end of described gas pipeline joint connects coating unit；
The lower end of the side often saving described cooling tube is provided with cooling liquid inlet, upper end is provided with cooling liquid outlet, described cooling liquid inlet connects described cooling body intermediate cavity with the inner of described cooling liquid outlet, cooling-cycle device is connected in outer end, cooling liquid flows out from described cooling-cycle device, enter described cooling body intermediate cavity from described cooling liquid inlet, be back in described cooling-cycle device from described cooling liquid outlet after circulation.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterized in that, the two ends up and down often saving described cooling tube are equipped with connecting tube, it is connected by described connecting tube between two described cooling tubes of arbitrary neighborhood, is tightly connected by described connecting tube between lower end and the described coating unit of described gas pipeline joint.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterized in that, between described cooling liquid inlet and described cooling liquid outlet and described cooling-cycle device, be respectively equipped with the low-temperature cooling fluid circulating pump making coolant circulate in described cooling body intermediate cavity.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterised in that the number of described cooling body is 4～6 joints.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterised in that described cooling gas is helium, intake is 2～8 liters/min,.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterised in that the temperature controlling range in described cooling-cycle device is-100 degrees Celsius～20 degrees Celsius.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterised in that described coolant uses dehydrated alcohol or the aqueous solution of ethylene glycol.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 1, it is characterised in that a length of 1～1.5 meter of single described cooling body, described cooling tube intracoelomic cavity, cooling body intermediate cavity and described cooling tube external chamber concentric are arranged.
Optical fiber cooling system under a kind of high-speed wire-drawing the most as claimed in claim 8, it is characterised in that a diameter of 8～15 millimeters of described cooling tube intracoelomic cavity, and use polishing, the external chamber of described cooling tube is vacuum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148943.8A CN105819679A (en) | 2016-03-16 | 2016-03-16 | Optical fiber cooling system under high speed wire drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148943.8A CN105819679A (en) | 2016-03-16 | 2016-03-16 | Optical fiber cooling system under high speed wire drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105819679A true CN105819679A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148943.8A Pending CN105819679A (en) | 2016-03-16 | 2016-03-16 | Optical fiber cooling system under high speed wire drawing |
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| CN (1) | CN105819679A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056043A (en) * | 2017-05-09 | 2017-08-18 | 江苏亨通光纤科技有限公司 | A kind of optical fibre cooling tube with automatic centering, cleaning function |
| CN108395093A (en) * | 2018-04-03 | 2018-08-14 | 中材科技股份有限公司 | A kind of cooling device, the building mortion of glass fibre, cooling and manufacturing process |
| CN109665724A (en) * | 2018-12-13 | 2019-04-23 | 中天科技光纤有限公司 | A kind of system and method reducing the cooling helium dosage of optical fiber |
| CN109836053A (en) * | 2018-12-18 | 2019-06-04 | 中天科技光纤有限公司 | Cooling system and its application method |
| WO2019226445A1 (en) * | 2018-05-23 | 2019-11-28 | Corning Incorporated | Vacuum slow cooling device for optical fiber draw |
| CN113651528A (en) * | 2021-08-18 | 2021-11-16 | 郭俊滔 | Cooling device for optical fiber drawing |
Citations (4)
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| JPH10101360A (en) * | 1996-09-30 | 1998-04-21 | Yazaki Corp | Method for cooling optical fiber and device therefor |
| CN103214181A (en) * | 2013-04-18 | 2013-07-24 | 烽火通信科技股份有限公司 | High-speed optical fiber drawing device and method |
| CN104496171A (en) * | 2014-11-27 | 2015-04-08 | 南京烽火藤仓光通信有限公司 | Method for reducing optical fiber loss |
| CN105236732A (en) * | 2015-08-31 | 2016-01-13 | 中天科技光纤有限公司 | Novel optical fiber wiredrawing cooling system |
-
2016
- 2016-03-16 CN CN201610148943.8A patent/CN105819679A/en active Pending
Patent Citations (4)
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| JPH10101360A (en) * | 1996-09-30 | 1998-04-21 | Yazaki Corp | Method for cooling optical fiber and device therefor |
| CN103214181A (en) * | 2013-04-18 | 2013-07-24 | 烽火通信科技股份有限公司 | High-speed optical fiber drawing device and method |
| CN104496171A (en) * | 2014-11-27 | 2015-04-08 | 南京烽火藤仓光通信有限公司 | Method for reducing optical fiber loss |
| CN105236732A (en) * | 2015-08-31 | 2016-01-13 | 中天科技光纤有限公司 | Novel optical fiber wiredrawing cooling system |
Non-Patent Citations (1)
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056043A (en) * | 2017-05-09 | 2017-08-18 | 江苏亨通光纤科技有限公司 | A kind of optical fibre cooling tube with automatic centering, cleaning function |
| CN108395093A (en) * | 2018-04-03 | 2018-08-14 | 中材科技股份有限公司 | A kind of cooling device, the building mortion of glass fibre, cooling and manufacturing process |
| WO2019192206A1 (en) * | 2018-04-03 | 2019-10-10 | 中材科技股份有限公司 | Cooling device, glass fiber forming device, and glass fiber cooling and forming methods |
| WO2019226445A1 (en) * | 2018-05-23 | 2019-11-28 | Corning Incorporated | Vacuum slow cooling device for optical fiber draw |
| US11097976B2 (en) | 2018-05-23 | 2021-08-24 | Corning Incorporated | Vacuum slow cooling device for optical fiber draw |
| US11618709B2 (en) | 2018-05-23 | 2023-04-04 | Corning Incorporated | Vacuum slow cooling device for optical fiber draw |
| CN109665724A (en) * | 2018-12-13 | 2019-04-23 | 中天科技光纤有限公司 | A kind of system and method reducing the cooling helium dosage of optical fiber |
| CN109665724B (en) * | 2018-12-13 | 2023-10-27 | 中天科技光纤有限公司 | System and method for reducing dosage of optical fiber cooling helium |
| CN109836053A (en) * | 2018-12-18 | 2019-06-04 | 中天科技光纤有限公司 | Cooling system and its application method |
| CN113651528A (en) * | 2021-08-18 | 2021-11-16 | 郭俊滔 | Cooling device for optical fiber drawing |
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Application publication date: 20160803 |
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