CN109836036A - A kind of fibre drawing furnace and optical fiber drawing method - Google Patents
A kind of fibre drawing furnace and optical fiber drawing method Download PDFInfo
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- CN109836036A CN109836036A CN201711223607.6A CN201711223607A CN109836036A CN 109836036 A CN109836036 A CN 109836036A CN 201711223607 A CN201711223607 A CN 201711223607A CN 109836036 A CN109836036 A CN 109836036A
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- optical fiber
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- 239000000835 fiber Substances 0.000 title claims abstract description 51
- 239000013307 optical fiber Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 59
- 239000012212 insulator Substances 0.000 claims abstract description 15
- 239000011796 hollow space material Substances 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000005491 wire drawing Methods 0.000 claims description 7
- 239000002887 superconductor Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000007380 fibre production Methods 0.000 abstract description 4
- 239000011261 inert gas Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 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
- 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
- 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
- C03B37/029—Furnaces therefor
Abstract
The invention discloses a kind of fibre drawing furnace and optical fiber drawing methods, belong to optical fiber producing apparatus technical field.The fibre drawing furnace includes furnace body, heat insulator, calandria, driving rotating device and heater, the heat insulator is set in the furnace body and wraps up the calandria, the driving rotating device is for driving the calandria to rotate, the heater is set to the furnace body periphery, the heater includes heating coil, and the hollow space that preform passes through inside the calandria when drawing optical fibers is drawn.On the one hand the fibre drawing furnace reduces furnace body volume, simplify structure, so that the amount of inert gas being passed through is reduced, reduces energy consumption, has saved cost；On the other hand, this drawing optical fibers furnace structure can also form uniform and stable thermal field simultaneously, improve the stability of optical fiber production, optical fiber of good performance easy to produce can be widely applied in optical fiber production technical field.
Description
Technical field
The present invention relates to optical fiber producing apparatus technical field, in particular to a kind of fibre drawing furnace and optical fiber drawing method.
Background technique
The wire drawing of optical fiber is that the preform of major diameter is melted to online and is drawn into the satisfactory light guide fibre of diameter
Dimension.The heating device (usually becoming fiber drawing furnace) melted to preform is one of the equipment of drawing process most critical,
The equipment directly affects the multinomial technical indicator of optical fiber, such as the diameter fluctuation of bare fibre, breakpoints of optical fiber rate, decaying, PMD and light
Fine geometric parameter etc..
At present in technique there are two types of common fibre drawing furnaces: DC electrically heating furnace and alternating current impression heating furnace.Wherein,
The main operational principle of DC electrically heating furnace is: low resistance graphite heating body is passed through direct current electric heating, is heated by heat transfer
Graphite central tube, reheating are conducted to prefabricated rods, and prefabricated rods are drawn into optical fiber after being heated to molten condition again.DC electrically heating
Often there is technical problem: (1) when prefabricated stick diameter becomes larger, the heating power and calandria needed is also sized to becoming larger,
The resistance value that power needs to reduce heater is increased in the case where supply voltage is certain, and calandria becomes large-sized and will cause resistance
Value becomes larger, that is resistance-heated furnace size in the case where must assure that the certain power of heating furnace, is unfavorable for furnace there are extreme value
The miniaturization of body volume；(2) since heating prefabricated rods need two layers of heat transfer by graphite heating body and graphite central tube, energy
Amount loss is big, is unfavorable for improving energy utilization rate and save energy consumption.The main operational principle of alternating current impression heating furnace is:
(water cooling) copper spiral winding is passed through medium frequency alternating current, generates the induced magnetic field of alternation, and high-quality electric conductor graphite central tube is being handed over
Become the eddy-current heating generated in induced magnetic field to be heated, heat transfer to prefabricated rods, draw again after being heated to molten condition by prefabricated rods
Optical fiber is made.Although furnace body size extreme-value problem, really exists following caused by alternating current impression heating furnace increases there is no resistance
Technological deficiency: (1) resistance loss of copper coil makes the reduction of heating device efficiency, facts have proved heating efficiency in some cases
It can only achieve 50%-60%；(2) to prevent excessive energy consumption caused by the components such as coil heats furnace shell, it is multiple to generally require design
Miscellaneous structure.This is because needing to take several measures between stainless steel furnace shell to prevent coil heats furnace on the outside of coil
Shell: between the two must assure that enough safe distances, more remoter better, the preferably not less than internal diameter of coil；In furnace shell inner wall
Increase every magnetic device, above all wire drawing furnace volume to be caused big, cavity is more, and attracts increased costs, furnace body heat heat insulation work
Difficulty increases, simultaneously because furnace body volume becomes larger, needs to be unfavorable for using more process gas the stabilization of thermal field.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of fibre drawing furnace and drawing optical fibers sides
Method.The technical solution is as follows:
On the one hand, it provides a kind of fibre drawing furnace, including furnace body, heat insulator, calandria, driving rotating device and adds
Hot device, the heat insulator are set in the furnace body and wrap up the calandria, and the driving rotating device is for driving described add
The rotation of hot body, the heater are set to the furnace body periphery, and the heater includes heating coil, optical fiber prefabricating when drawing optical fibers
The hollow space that stick passes through inside the calandria is drawn.
Preferably, the driving rotating device includes: hollow rotating platform and driving motor, and the calandria is set in described
On empty turntable, the driving motor is for driving the hollow rotating platform to drive the calandria rotation.
Preferably, the driving rotating device further includes PLC control system.It can be according to pre- by the PLC control system
If it is required that control driving motor driving hollow rotating platform is accordingly rotated, and can be wanted according to the correlation of preform drawing
It asks and adjusts rotation speed etc., be easy to implement the real-time adjusting control to fibre drawing furnace.
Preferably, the heating coil is high-temperature superconductor material coil, due to its good superconductivity, in certain temperature
Become a superconducting magnet after the lower energization of degree, form a high-intensity magnetic field, by the opposite fortune of the calandria and the heating coil
Dynamic, the magnetic field collective effect of the high-intensity magnetic field of superconducting coil and the calandria ultimately forms a strong alternating magnetic field；The optical fiber
Fiber drawing furnace is additionally provided with refrigeration machine, and the refrigeration machine is used to be the heating coil refrigeration cool-down, so that meeting the work of superconducting coil
Make temperature.
Preferably, the heating coil is helically coiled.
Preferably, the heater is fixed on bracket.
Preferably, the heater is connect with DC power supply.It itself can due to not having to connection alternating current fibre drawing furnace
To form the alternating magnetic field that can generate electromagnetic induction eddy current heating, the heater can be passed directly into direct current, will be described
Heater is connect with DC power supply, reduces power cost.
On the other hand, a kind of optical fiber drawing method of fibre drawing furnace according to aforementioned schemes is provided, comprising:
Before fibre drawing furnace unlatching, preparation before performing drawing optical fibers, including the lazy of drawing optical fibers furnace interior
Property gas is passed through work and seal operation；
Fibre drawing furnace is opened, heater is heated；
Driving rotating device is opened, the intracorporal calandria of furnace is rotated in the driving of driving rotating device；
When the drawing condition in measurement fibre drawing furnace meets the requirements, the wire drawing of preform is carried out.
Preferably, driving rotating device is opened, the intracorporal calandria of furnace is rotated in the driving of driving rotating device, is wrapped
It includes:
Driving rotating device is opened, under the control of PLC control system, driving motor drives hollow rotating platform to drive heating
Body is rotated.
Preferably, the optical fiber drawing method further include:
Refrigeration machine is opened, the heating coil of the heater is freezed to default heating temperature.
Technical solution provided in an embodiment of the present invention has the benefit that
(1) in fiber drawing process, heater is kept completely separate fibre drawing furnace with preform in this, it is possible to reduce
The size of furnace body (canister or furnace shell), very high to the required precision of processing because furnace body needs to guarantee leakproofness, smaller ruler
Very little furnace body can reduce the material of furnace body and reduce the manufacture difficulty of processing of furnace body.
(2) lesser furnace chamber, scaling loss under graphite piece high temperature can be protected by being passed through a small amount of inert protective gas, reduce graphite
The consumption of part and gas, reduces cost；
(3) fiber drawing furnace of smaller size smaller can guarantee being uniformly distributed and timely responding to for heat, form uniform thermal field；
(4) since can the performance indicators such as furnace temperature, this fiber drawing furnace be adjusted in time by adjusting related device according to demand
More evenly, the thermal field formed in this way is also more evenly stable for the more traditional fiber drawing furnace in the magnetic field that heater is formed, and it is raw to be conducive to optical fiber
The stabilization of production；
(5) under identical operating condition, this fiber drawing furnace saves at least 30% power consumption, electric energy source utilization rate compared to original fiber drawing furnace
It is promoted to 90% or more, reduces energy consumption.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of fibre drawing furnace provided in an embodiment of the present invention.
Description of symbols:
1- furnace body, 2- thermal insulation layer, 3- calandria, 4- drive rotating device, 5- heater, 6- preform.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
It should be noted that present invention description as described on the directions such as " underface ", "upper" be all based on it is shown in the drawings
The contextual definition of orientation or position, it is merely for convenience of description of the present invention and simplification of the description, rather than described in indication or suggestion
Device must be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The embodiment of the invention provides a kind of fibre drawing furnaces will be heated due to this structure setting of the fibre drawing furnace
Device is arranged outside furnace body, and by driving calandria to rotate to form stable high-intensity magnetic field, total with the heating coil outside furnace body
Same-action, even if the eddy heating for heating of electromagnetic induction also may be implemented when being passed through DC power supply, to be formed in furnace body opposite
Stable and adjustable thermal field.On the one hand the fibre drawing furnace reduces furnace body volume, structure is simplified, so that the indifferent gas being passed through
The scale of construction is reduced, and is reduced energy consumption, has been saved cost；On the other hand, this drawing optical fibers furnace structure simultaneously can also be formed uniformly and
Stable thermal field, improves the stability of optical fiber production, and optical fiber of good performance easy to produce can be widely applied to optical fiber production
In technical field.
Below in conjunction with specific embodiments and drawings to fibre drawing furnace provided in an embodiment of the present invention and drawing optical fibers side
Method is further described.
Fig. 1 is the structural schematic diagram of fibre drawing furnace provided in an embodiment of the present invention.As shown in Figure 1, the embodiment of the present invention
The fibre drawing furnace of offer, including furnace body 1, heat insulator 2, calandria 3, driving rotating device 4 and heater 5, from inside to outside
It is successively: calandria 3, heat insulator 2 and furnace body 1.When drawing optical fibers preform 6 pass through calandria 3 in hollow space into
Row is drawn.Preferably, calandria 3 uses the calandria of high purity graphite material, because of its characteristic small with high temperature resistant, resistance,
Calandria 3 can also be made of other any possible materials in the prior art, and the embodiment of the present invention does not limit it especially
System.In addition, heat insulator 2 is set in furnace body 1 and wraps up calandria 3, play the role of heat-insulation and heat-preservation, preferably heat insulator 2 is by carbon
Fiber heat insulation material is made, and heat insulator 2 can also be made of other any possible materials in the prior art, and the present invention is implemented
Example does not limit it especially.Preferably, furnace body 1 is non-metallic material, has high temperature resistant, insulation, non-magnetic characteristic, together
Sample furnace body 1 can also be made of other any possible materials in the prior art, the embodiment of the present invention is not subject to it especially
Limitation.Furnace body 1, heat insulator 2 and calandria 3 have collectively constituted the heating room of fibre drawing furnace, when carrying out drawing optical fibers, should add
Hot cell is passed through corresponding inert gas to ensure the internal atmosphere met the requirements, and is in sealing state.Preferably, it heats
Interior is passed through the inert protective gas such as argon gas (Ar), helium (He), nitrogen (N).
Driving rotating device 4 is for driving calandria 3 to rotate, it is preferable that driving rotating device 4 includes: hollow rotating platform
And driving motor, hollow rotating platform inside have a hollow structure, hollow rotating platform keeps being co-axially mounted on furnace body 1 with furnace body
Underface, calandria 3 be set to hollow rotating platform on, driving motor for drive hollow rotating platform drive calandria rotation.?
In another embodiment, it is arranged or ensures the leakproofness in furnace body 1 for the ease of overall structure, can also use with flowering structure
Set-up mode: by the heating room integral installation being made of furnace body 1, heat insulator 2, calandria 3 on hollow rotating platform, and guarantee
With hollow rotating platform coaxial rotating occurs for furnace body 1, heat insulator 2 and calandria 3 together when rotation.It is further preferred that driving rotation
Rotary device further includes PLC control system (not shown).It can be controlled and be driven according to preset requirement by the PLC control system
Motor driven hollow rotating platform is accordingly rotated, and can adjust rotation speed according to the related request of preform drawing
Deng, be easy to implement to fibre drawing furnace real-time adjusting control.
Heater 5 is set to 1 periphery of furnace body, and preferably heater 5 is fixed in bracket (not shown).Specifically, add
Hot device 5 includes heating coil.Preferably, heating coil is helically coiled, it is additionally preferred to which ground, heating coil are Superconducting Bulk Materials
Matter coil, i.e. coil are made of high-temperature superconductor (HTS) material, due to its good superconductivity, are powered at a certain temperature
After become a superconducting magnet, form a high-intensity magnetic field, by the relative motion of calandria 3 and heating coil, superconducting coil it is strong
The magnetic field collective effect in magnetic field and calandria 3 ultimately forms a strong alternating magnetic field, generates electromagnetic induction by the alternating magnetic field
Eddy heating for heating, heat transfer to calandria 3, to realize the wire-drawing process of preform 6.In order to meet above-mentioned superconducting coil
Operating temperature requirements, in addition to the heat insulator 2 and furnace body 1 of 3 intermediate arrangement of calandria in heater 5 and furnace body 1 can prevent wire drawing
The heat of generation influences outside superconducting coil, and the corresponding position of fibre drawing furnace is additionally provided with refrigeration machine, and refrigeration machine is used to be superconducting line
Refrigeration cool-down is enclosed, so that meeting the operating temperature of superconducting coil.
Furthermore it is preferred that electromagnetism sense can be generated due to that can be formed without connection alternating current fibre drawing furnace itself
The alternating magnetic field of eddy heating for heating is answered, heater can be passed directly into direct current, and heater is connect with DC power supply, reduces electricity
Power cost.
In conclusion fibre drawing furnace provided in an embodiment of the present invention comprising the heater setting of heating coil by that will exist
Outside furnace body, and the intracorporal calandria rotation of furnace is driven by driving rotating device, due to the calandria with satisfactory electrical conductivity
With rotation, the magnetic field of alternation is cooperatively formed with external heating coil, inside generates eddy-current heating and is heated, to realize
Drawing optical fibers work.Following three kinds of adjustings at least may be implemented in fibre drawing furnace based on this structure: (1) by adjusting heating
The relative position of device and heating room can easily realize the adjustment to hot-zone；(2) due to the bigger generation of calandria rotation speed
Alternating magnetic field frequency it is higher, to heating object induction heating infiltration distance with regard to small, so as to by adjust rotation speed
It spends to adjust the range of control heating；(3) process conditions according to needed for drawing optical fibers technique, including technological temperature and process gas
Etc. indexs, comprehensive adjustment heater power, calandria rotation speed, heater and heating room relative positional relationship and be passed through lazy
The indexs such as property gas flow, form more uniform magnetic field, the thermal field formed in this way is also more evenly stable, is conducive to tie up in fiber drawing furnace
Hold the stabilization of drawing optical fibers process.
In addition, the embodiment of the invention also provides a kind of drawing optical fibers sides using fibre drawing furnace described in above scheme
Method, comprising the following steps:
Before fibre drawing furnace unlatching, preparation before performing drawing optical fibers, including the lazy of drawing optical fibers furnace interior
Property gas is passed through work and seal operation；
Fibre drawing furnace is opened, heater is heated；
Driving rotating device is opened, the intracorporal calandria of furnace is rotated in the driving of driving rotating device；
When the drawing condition in measurement fibre drawing furnace meets the requirements, the wire drawing of preform is carried out.
In a preferred embodiment, driving rotating device, drive of the intracorporal calandria of furnace in driving rotating device are opened
Dynamic to be rotated, this process carries out as follows:
Driving rotating device is opened, under the control of PLC control system, driving motor drives hollow rotating platform to drive heating
Body is rotated.
In addition, when the heating coil of heater uses high-temperature superconductor material coil, for the heater wire to heater
Circle carries out refrigeration cool-down, above-mentioned optical fiber drawing method further include:
Refrigeration machine is opened, the heating coil of heater is freezed to default heating temperature.
Fibre drawing furnace and optical fiber drawing method provided in an embodiment of the present invention have following beneficial aspects:
(1) in fiber drawing process, heater is kept completely separate fibre drawing furnace with preform in this, it is possible to reduce
The size of furnace body (canister or furnace shell), very high to the required precision of processing because furnace body needs to guarantee leakproofness, smaller ruler
Very little furnace body can reduce the material of furnace body and reduce the manufacture difficulty of processing of furnace body.
(2) lesser furnace chamber, scaling loss under graphite piece high temperature can be protected by being passed through a small amount of inert protective gas, reduce graphite
The consumption of part and gas, reduces cost；
(3) fiber drawing furnace of smaller size smaller can guarantee being uniformly distributed and timely responding to for heat, form uniform thermal field；
(4) since can the performance indicators such as furnace temperature, this fiber drawing furnace be adjusted in time by adjusting related device according to demand
More evenly, the thermal field formed in this way is also more evenly stable for the more traditional fiber drawing furnace in the magnetic field that heater is formed, and it is raw to be conducive to optical fiber
The stabilization of production；
(5) under identical operating condition, this fiber drawing furnace saves at least 30% power consumption, electric energy source utilization rate compared to original fiber drawing furnace
It is promoted to 90% or more, reduces energy consumption.
It should be understood that fibre drawing furnace provided by the above embodiment is when carrying out drawing optical fibers work, only with above-mentioned
The division progress of each functional module can according to need and for example, in practical application by above-mentioned function distribution by different
Functional module is completed, i.e., the internal structure of equipment is divided into different functional modules, with complete it is described above whole or
Partial function.In addition, optical fiber drawing method provided by the above embodiment and fibre drawing furnace embodiment belong to same design, have
Body realizes that process is detailed in embodiment of the method, and which is not described herein again.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fibre drawing furnace, which is characterized in that including furnace body, heat insulator, calandria, driving rotating device and heating
Device, the heat insulator are set in the furnace body and wrap up the calandria, and the driving rotating device is for driving the heating
Body rotation, the heater are set to furnace body periphery, and the heater includes heating coil, preform when drawing optical fibers
Hollow space inside the calandria is drawn.
2. fibre drawing furnace according to claim 1, which is characterized in that the driving rotating device includes: hollow rotating
Platform and driving motor, the calandria are set on the hollow rotating platform, and the driving motor is for driving the hollow rotating
Platform drives the calandria rotation.
3. fibre drawing furnace according to claim 2, which is characterized in that the driving rotating device further includes PLC control
System.
4. fibre drawing furnace according to claim 1, which is characterized in that the heating coil is high-temperature superconductor material line
Circle, the fibre drawing furnace are additionally provided with refrigeration machine, and the refrigeration machine is used to be the heating coil refrigeration cool-down.
5. described in any item fibre drawing furnaces according to claim 1, which is characterized in that the heating coil is helically coiled.
6. fibre drawing furnace according to claim 1, which is characterized in that the heater is fixed on bracket.
7. fibre drawing furnace according to any one of claims 1 to 6, which is characterized in that the heater and DC power supply
Connection.
8. a kind of optical fiber drawing method of fibre drawing furnace according to claim 1 characterized by comprising
Before fibre drawing furnace unlatching, preparation before performing drawing optical fibers, the indifferent gas including drawing optical fibers furnace interior
Body is passed through work and seal operation；
Fibre drawing furnace is opened, heater is heated；
Driving rotating device is opened, the intracorporal calandria of furnace is rotated in the driving of driving rotating device；
When the drawing condition in measurement fibre drawing furnace meets the requirements, the wire drawing of preform is carried out.
9. a kind of optical fiber drawing method according to claim 8, which is characterized in that open driving rotating device, furnace is intracorporal to be added
Hot body is rotated in the driving of driving rotating device, comprising:
Open driving rotating device, under the control of PLC control system, driving motor drive hollow rotating platform drive calandria into
Row rotation.
10. a kind of optical fiber drawing method according to claim 8, which is characterized in that the optical fiber drawing method further include:
Refrigeration machine is opened, the heating coil of the heater is freezed to default heating temperature.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223607.6A CN109836036A (en) | 2017-11-29 | 2017-11-29 | A kind of fibre drawing furnace and optical fiber drawing method |
| PCT/CN2018/094695 WO2019105038A1 (en) | 2017-11-29 | 2018-07-05 | Fiber drawing furnace and fiber drawing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223607.6A CN109836036A (en) | 2017-11-29 | 2017-11-29 | A kind of fibre drawing furnace and optical fiber drawing method |
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| Publication Number | Publication Date |
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| CN109836036A true CN109836036A (en) | 2019-06-04 |
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| CN201711223607.6A Pending CN109836036A (en) | 2017-11-29 | 2017-11-29 | A kind of fibre drawing furnace and optical fiber drawing method |
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| CN (1) | CN109836036A (en) |
| WO (1) | WO2019105038A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788613A (en) * | 2021-11-16 | 2021-12-14 | 成都中住光纤有限公司 | Optical fiber preparation system and method |
| CN114212990A (en) * | 2021-12-30 | 2022-03-22 | 中国建筑材料科学研究总院有限公司 | Optical fiber drawing furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN104291677B (en) * | 2014-09-23 | 2016-07-06 | 中天科技光纤有限公司 | A kind of fibre drawing furnace |
| CN106186663A (en) * | 2016-08-29 | 2016-12-07 | 中天科技光纤有限公司 | A kind of novel optical fiber fiber drawing furnace |
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| CN104478211A (en) * | 2014-12-31 | 2015-04-01 | 江苏通鼎光棒有限公司 | Device and method for heating and melting optical fiber preform rod |
| CN205603453U (en) * | 2016-05-13 | 2016-09-28 | 藤仓烽火光电材料科技有限公司 | Optical fiber perform laser heating stove |
| CN105927666A (en) * | 2016-05-18 | 2016-09-07 | 中国农业大学 | System and method capable of rapidly eliminating magnetic force inside superconduction magnetic suspension rotor |
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| CN113788613A (en) * | 2021-11-16 | 2021-12-14 | 成都中住光纤有限公司 | Optical fiber preparation system and method |
| CN113788613B (en) * | 2021-11-16 | 2022-02-15 | 成都中住光纤有限公司 | Optical fiber preparation system and method |
| CN114212990A (en) * | 2021-12-30 | 2022-03-22 | 中国建筑材料科学研究总院有限公司 | Optical fiber drawing furnace |
| CN114212990B (en) * | 2021-12-30 | 2023-08-15 | 中国建筑材料科学研究总院有限公司 | Optical fiber drawing furnace |
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| WO2019105038A1 (en) | 2019-06-06 |
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