CN107311446B - Optical fiber drawing cooling device - Google Patents
Optical fiber drawing cooling device Download PDFInfo
- Publication number
- CN107311446B CN107311446B CN201710505738.7A CN201710505738A CN107311446B CN 107311446 B CN107311446 B CN 107311446B CN 201710505738 A CN201710505738 A CN 201710505738A CN 107311446 B CN107311446 B CN 107311446B
- Authority
- CN
- China
- Prior art keywords
- cooling
- evaporator
- pipe
- optical fiber
- carbon dioxide
- 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.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000013307 optical fiber Substances 0.000 title claims abstract description 29
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 29
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 29
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000498 cooling water Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 4
- 230000008016 vaporization Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 20
- 239000000112 cooling gas Substances 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical group [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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
-
- 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
- C03B2205/51—Cooling the drawn fibre using liquid coolant prior to coating, e.g. indirect cooling via cooling jacket using liquified or cryogenic gas
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses an optical fiber drawing cooling device which comprises a low-temperature storage tank, a gas pipeline, an evaporator, a control system and a cooler, wherein the bottom end part of the low-temperature storage tank is fixedly connected with the gas pipeline, the other end of the gas pipeline is fixedly connected with the evaporator, and the evaporator is fixedly connected with the cooler through the pipeline. According to the invention, the electromagnetic valve and the electromagnetic throttle valve are regulated through the control system, and the electromagnetic throttle valve is controlled by receiving the temperature signal of the saturated evaporated carbon dioxide measured by the temperature measuring meter, so that the flow of the liquefied carbon dioxide entering the evaporator is regulated, and the saturated evaporated carbon dioxide with different temperatures is obtained.
Description
Technical Field
The invention relates to a cooling device, in particular to an optical fiber drawing cooling device.
Background
As the market for optical fibers increases, the drawing speed of optical fibers increases. When the optical fiber is drawn at a high speed, the temperature of the optical fiber when the optical fiber comes out of the drawing furnace is between 1500 ℃ and 2000 ℃, and because the optical fiber drawing tower is generally 10 meters to 40 meters high, when the optical fiber reaches the coating, the optical fiber is cooled until the temperature of the optical fiber is too much different from the temperature of the coating, and coating abnormality easily occurs at the moment. Therefore, the optical fiber needs to be cooled, and the cooling gas adopted by the existing cooling technology is helium, so that the advantages are that the specific heat capacity is 5.24KJ/kg.K, and the heat exchange speed is high; the disadvantage is that it is expensive as a rare gas and requires importation. The long-term use of helium as a cooling gas is disadvantageous in production cost control.
Chinese patent CN104496170a proposes a device using hydrogen as cooling gas. The hydrogen has a thermal specific volume of 14.43 KJ/kg.K, which is almost three times that of helium, so that the cooling effect is good and the price is low, but the hydrogen is used as a flammable and explosive gas, and has potential safety hazard.
Chinese patent CN205443057U proposes a device using nitrogen as cooling gas, which is inexpensive and easily available, but has a specific heat capacity of only 0.741 KJ/kg.k, a low heat exchange rate and a poor cooling effect.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides an optical fiber drawing cooling device which utilizes volume expansion and heat absorption in the vaporization process of liquefied carbon dioxide to cool bare optical fibers and has the function of replacing helium to reduce production cost.
In order to solve the technical problems, the invention adopts the following technical scheme: an optical fiber drawing cooling device is characterized in that: the low-temperature storage tank comprises a low-temperature storage tank, a gas pipeline, an evaporator, a control system and a cooler, wherein the bottom end part of the low-temperature storage tank is fixedly connected with the gas pipeline, the other end of the gas pipeline is fixedly connected with the evaporator, and the evaporator is fixedly connected with the cooler through the pipeline.
Further, the cooler comprises a cooling pipe and a cooling water circulation device, and the cooling pipe is connected with the cooling water circulation device.
Further, the cooling water circulating device comprises a cooling water tank, a water pump, a circulating water inlet pipe and a circulating water outlet pipe, wherein the circulating water inlet pipe and the circulating water outlet pipe are arranged on the cooling pipe, the other end of the circulating water inlet pipe is fixedly connected with the cooling water tank, and the other end of the circulating water outlet pipe is fixedly connected with the cooling water tank.
Furthermore, a cooling pipe gas inlet is formed in the position of the cooling pipe 1/2, and the cooling pipe gas inlet is connected with a gas pipeline.
Further, the evaporator comprises an evaporator box body, and an air inlet a and an air outlet a which are positioned at the upper end part of the evaporator box body.
Furthermore, a thermometer is fixedly arranged on the air outlet a of the evaporator box body.
Furthermore, a safety valve and an electromagnetic throttle valve are fixedly arranged on the gas pipeline, and an electromagnetic valve is fixedly arranged at the upper end part of the gas outlet a.
Further, the control system comprises a signal converter and a computer control terminal, wherein the signal converter is electrically connected with the computer control terminal, and the computer control terminal is electrically connected with the electromagnetic throttle valve, the electromagnetic valve and the thermometer.
The beneficial effects of the invention are as follows:
(1) The invention uses the principle of volume expansion and heat absorption in the vaporization process of the compressed liquefied carbon dioxide liquid to cool the optical fiber, and simultaneously, the carbon dioxide has low price and easy supply, thereby effectively reducing the production cost.
(2) According to the invention, the temperature detector is arranged at the outlet a of the evaporator, so that the temperature of saturated and evaporated carbon dioxide can be monitored in real time.
(3) According to the invention, the electromagnetic valve and the electromagnetic throttle valve are regulated through the control system, and the electromagnetic throttle valve is controlled by receiving the temperature signal of the saturated evaporated carbon dioxide measured by the temperature measuring meter, so that the flow of the liquefied carbon dioxide entering the evaporator is regulated, and the saturated evaporated carbon dioxide with different temperatures is obtained.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Referring to fig. 1, which is a schematic diagram of the whole structure of the present invention, an optical fiber drawing cooling device includes a low-temperature storage tank 1, a gas pipe 3, an evaporator 7, a control system 5 and a cooler, wherein the bottom end of the low-temperature storage tank 1 is fixedly connected with the gas pipe 3, the other end of the gas pipe 3 is fixedly connected with the evaporator 7, and the evaporator 7 is fixedly connected with the cooler through a pipe.
The cooler comprises a cooling pipe 9 and a cooling water circulating device, the cooling water circulating device comprises a cooling water tank, a water pump, a circulating water inlet pipe 12 and a circulating water outlet pipe 13, the circulating water inlet pipe 12 is arranged on the cooling pipe 9, the other end of the circulating water inlet pipe 12 is fixedly connected with the cooling water tank, the other end of the circulating water outlet pipe 13 is fixedly connected with the cooling water tank, a cooling pipe gas inlet 14 is further formed in the position of 1/2 of the cooling pipe 9, and the cooling pipe gas inlet 14 is connected with the gas pipeline 3.
The evaporator 7 comprises an evaporator box body, an air inlet a10 and an air outlet a11 which are positioned at the upper end part of the evaporator box body, and a thermometer 6 is fixedly arranged on the air outlet a11 of the evaporator box body. According to the invention, the temperature detector 6 is arranged at the air outlet a11 of the evaporator, so that the temperature of saturated and evaporated carbon dioxide can be monitored in real time.
The gas pipeline 3 is also fixedly provided with a safety valve 2 and an electromagnetic throttle valve 4, and the upper end part of the gas outlet a11 is also fixedly provided with an electromagnetic valve 8.
The control system 5 comprises a signal converter and a computer control terminal, wherein the signal converter is electrically connected with the computer control terminal, and the computer control terminal is electrically connected with the electromagnetic throttle valve 4, the electromagnetic valve 8 and the thermometer 6. According to the invention, the electromagnetic valve 8 and the electromagnetic throttle valve 4 are regulated by the control system 5, and the electromagnetic throttle valve 4 is controlled by receiving the temperature signal of the saturated evaporated carbon dioxide measured by the thermometer 6, so that the flow of the liquefied carbon dioxide entering the evaporator 7 is regulated, and the saturated evaporated carbon dioxide with different temperatures is obtained.
The invention uses the principle of volume expansion and heat absorption in the vaporization process of the compressed liquefied carbon dioxide liquid to cool the optical fiber, and simultaneously, the carbon dioxide has low price and easy supply, thereby effectively reducing the production cost.
Working principle:
opening a safety valve 2, and inputting the liquefied carbon dioxide in the low-temperature storage tank 1 into an evaporator 7 through a gas pipeline 3, wherein the liquefied carbon dioxide forms saturated evaporated carbon dioxide through heat exchange in the evaporator 7; the control system 5 controls the electromagnetic throttle valve 4 to adjust the flow of liquefied carbon dioxide according to the received signal of the temperature of saturated evaporated carbon dioxide measured by the temperature measuring meter 6 so as to obtain saturated evaporated carbon dioxide with different temperatures; saturated vaporized carbon dioxide enters the cooling tube 9 through the gas inlet 14 of the cooling tube 9; the optical fiber passes through the inside of the cooling pipe 9, and the control system 5 adjusts the flow of saturated evaporated carbon dioxide by controlling the electromagnetic valve 8; the saturated evaporated carbon dioxide is fully contacted with the surface of the optical fiber to perform heat exchange, so that the heat of the optical fiber is taken away; the carbon dioxide is in contact heat exchange with the inner wall of the cooling pipe 9 and transfers heat to the circulating water in the cooling pipe 9, and the absorbed heat of the circulating water is taken away by the water circulation device, so that the whole optical fiber cooling process is realized.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (4)
1. An optical fiber drawing cooling device, characterized in that: the low-temperature storage tank comprises a low-temperature storage tank, a gas pipeline, an evaporator, a control system and a cooler, wherein the bottom end part of the low-temperature storage tank is fixedly connected with the gas pipeline, the other end of the gas pipeline is fixedly connected with the evaporator, and the evaporator is fixedly connected with the cooler through the pipeline;
the evaporator comprises an evaporator box body, and an air inlet a and an air outlet a which are positioned at the upper end part of the evaporator box body;
a temperature detector is fixedly arranged on the air outlet a of the evaporator box body;
the gas pipeline is also fixedly provided with a safety valve and an electromagnetic throttle valve, and the upper end part of the gas outlet a is also fixedly provided with an electromagnetic valve;
the control system comprises a signal converter and a computer control terminal, wherein the signal converter is electrically connected with the computer control terminal, and the computer control terminal is electrically connected with the electromagnetic throttle valve, the electromagnetic valve and the thermometer;
the cooling device uses the principle of volume expansion and heat absorption in the vaporization process of the compressed liquefied carbon dioxide liquid to cool the optical fiber, and controls the electromagnetic throttle valve by receiving the temperature signal of the saturated vaporized carbon dioxide measured by the temperature measuring meter, thereby adjusting the flow of the liquefied carbon dioxide entering the evaporator and further obtaining the saturated vaporized carbon dioxide with different temperatures.
2. An optical fiber drawing cooling apparatus according to claim 1, wherein: the cooler comprises a cooling pipe and a cooling water circulating device, and the cooling pipe is connected with the cooling water circulating device.
3. An optical fiber drawing cooling apparatus according to claim 2, wherein: the cooling water circulating device comprises a cooling water tank, a water pump, a circulating water inlet pipe and a circulating water outlet pipe, wherein the circulating water inlet pipe and the circulating water outlet pipe are arranged on the cooling pipe, the other end of the circulating water inlet pipe is fixedly connected with the cooling water tank, and the other end of the circulating water outlet pipe is fixedly connected with the cooling water tank.
4. An optical fiber drawing cooling apparatus according to claim 2, wherein: and a cooling pipe gas inlet is also formed in the position of the cooling pipe 1/2, and the cooling pipe gas inlet is connected with a gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505738.7A CN107311446B (en) | 2017-06-28 | 2017-06-28 | Optical fiber drawing cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710505738.7A CN107311446B (en) | 2017-06-28 | 2017-06-28 | Optical fiber drawing cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107311446A CN107311446A (en) | 2017-11-03 |
| CN107311446B true CN107311446B (en) | 2023-08-04 |
Family
ID=60180292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710505738.7A Active CN107311446B (en) | 2017-06-28 | 2017-06-28 | Optical fiber drawing cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107311446B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002697B (en) * | 2017-11-30 | 2020-04-14 | 长飞光纤光缆股份有限公司 | Spray type cooling device and method for online cooling of optical fiber |
| CN108793726B (en) * | 2018-06-20 | 2019-07-30 | 江苏永鼎光纤科技有限公司 | A kind of optical fiber cooling apparatus and cooling method is carried out to optical fiber |
| CN113060933B (en) * | 2021-03-23 | 2022-08-12 | 安徽天顺环保过滤材料有限公司 | Fiber drawing device for glass fiber production and implementation method thereof |
| CN115818984B (en) * | 2022-12-30 | 2024-09-10 | 长飞光纤光缆股份有限公司 | Evaporation natural cooling type solidifying equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079186A1 (en) * | 1981-11-05 | 1983-05-18 | Corning Glass Works | Apparatus for drawing optical fibers |
| JPS63248742A (en) * | 1987-04-06 | 1988-10-17 | Sumitomo Electric Ind Ltd | Optical fiber manufacturing method |
| CN1279654A (en) * | 1997-11-21 | 2001-01-10 | 皮雷利·卡维系统有限公司 | Method and apparatus for cooling optical fibers |
| CN1503891A (en) * | 2001-04-20 | 2004-06-09 | Һ������������·������ú��о��ľ� | Apparatus and methods for low pressure cryogenic cooling, in particular of optical fibers |
| CN1620575A (en) * | 2001-01-05 | 2005-05-25 | 普莱克斯技术有限公司 | Gas delivery at high flow rates |
| CN102245522A (en) * | 2008-12-19 | 2011-11-16 | 株式会社藤仓 | Method for producing optical fiber preform |
| CN103304133A (en) * | 2013-04-27 | 2013-09-18 | 江苏亨通光纤科技有限公司 | Device for cooling optical fiber wire online by using hydrogen |
| CN104556675A (en) * | 2013-10-15 | 2015-04-29 | 南京烽火藤仓光通信有限公司 | Single-mode fiber manufacturing method |
| CN207451935U (en) * | 2017-06-28 | 2018-06-05 | 江东科技有限公司 | A kind of drawing optical fibers cooling device |
-
2017
- 2017-06-28 CN CN201710505738.7A patent/CN107311446B/en active Active
Patent Citations (9)
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|---|---|---|---|---|
| EP0079186A1 (en) * | 1981-11-05 | 1983-05-18 | Corning Glass Works | Apparatus for drawing optical fibers |
| JPS63248742A (en) * | 1987-04-06 | 1988-10-17 | Sumitomo Electric Ind Ltd | Optical fiber manufacturing method |
| CN1279654A (en) * | 1997-11-21 | 2001-01-10 | 皮雷利·卡维系统有限公司 | Method and apparatus for cooling optical fibers |
| CN1620575A (en) * | 2001-01-05 | 2005-05-25 | 普莱克斯技术有限公司 | Gas delivery at high flow rates |
| CN1503891A (en) * | 2001-04-20 | 2004-06-09 | Һ������������·������ú��о��ľ� | Apparatus and methods for low pressure cryogenic cooling, in particular of optical fibers |
| CN102245522A (en) * | 2008-12-19 | 2011-11-16 | 株式会社藤仓 | Method for producing optical fiber preform |
| CN103304133A (en) * | 2013-04-27 | 2013-09-18 | 江苏亨通光纤科技有限公司 | Device for cooling optical fiber wire online by using hydrogen |
| CN104556675A (en) * | 2013-10-15 | 2015-04-29 | 南京烽火藤仓光通信有限公司 | Single-mode fiber manufacturing method |
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Non-Patent Citations (1)
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|---|---|
| CN107311446A (en) | 2017-11-03 |
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