CN208104228U - A kind of fiber drawing furnace gas leading-in device - Google Patents
A kind of fiber drawing furnace gas leading-in device Download PDFInfo
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- CN208104228U CN208104228U CN201820116806.0U CN201820116806U CN208104228U CN 208104228 U CN208104228 U CN 208104228U CN 201820116806 U CN201820116806 U CN 201820116806U CN 208104228 U CN208104228 U CN 208104228U
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- heating
- drawing furnace
- import pipe
- fiber drawing
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Abstract
A kind of fiber drawing furnace gas leading-in device, gatherer front end connects gas source, tail end is imported into wire-drawer-tower, it includes import pipe and heating device, the heating device is hollow and both ends open heating channel, the import pipe is located in heating channel, and the import pipe reheats pipeline inner bending after entering heating channel.Wherein, the heating device is Resistant heating porcelain siphunculus.The utility model carries out the situation for causing thermal field unstable when heat exchange by the gas that above structure improves two kinds of different temperatures, to improve the thermal field stability in fiber drawing furnace, improves optical fiber final product quality.
Description
Technical field
The utility model belongs to optical fiber fabrication arts, and in particular to inert gas of the prefabricated rods in drawing process imports dress
It sets.
Background technique
Fibre drawing furnace is one of most important equipment in fiber manufacturing process.Drawing process can be described as
Under the control of system, enter preform in fiber drawing furnace, there is a large amount of graphite member in fiber drawing furnace, in the heating of induction coil
Under, 2000 DEG C or so of thermal field is formed, the end of preform softens at such a temperature, and viscosity is reduced, and makees in surface tension
Attenuated with lower rapid contraction, provides suitable tension by traction wheel and pull into filament downwards, finally generate optical fiber by coating processes
Finished product.In fiber drawing furnace, oxygen enters in order to prevent, causes graphite piece to aoxidize, to influence optical fiber quality, it is necessary to have abundance
Inert gas protects fiber drawing furnace, and the inert gas being generally passed through is helium and argon gas.
Currently, inert protective gas is directly suitable for reading to fiber drawing furnace by pipeline transportation from gas station, it is then introduced into fiber drawing furnace.
With the gas mixing for being heated into high temperature in fiber drawing furnace, thermal field needed for forming lasting wire drawing.Inert gas is introduced directly into, and is led
Enter gas and is generally normal temperature state.The gas mixing of temperature and subsequent importing in fiber drawing furnace influences original thermal field stability, temperature
Difference is bigger, and thermal field stability influence is also bigger.Since external complement gas is to be input to drawing according to certain flow is continual
In silk furnace, so this unstable heat exchange is at every moment all occurring.
Summary of the invention
Technical problem to be solved in the utility model is：The gas of thermal field stability in a kind of reduction fiber drawing furnace is provided to add
Heat structure.
The utility model uses following technical scheme to solve above-mentioned technical problem：
A kind of fiber drawing furnace gas leading-in device, including import pipe and heating device, the heating device are hollow and two
The heating channel of end opening, the import pipe are located in heating channel, and the import pipe reheats after entering heating channel
Pipeline inner bending.
Preferably, the heating device is Resistant heating porcelain siphunculus.
Preferably, the import pipe is axially helical structure in heating channel.
Preferably, the import pipe is axially continuous S type structure in heating channel.
Preferably, the import pipe is axially continuous N type junction structure in heating channel.
Compared with prior art, the utility model has the advantages that：
1, heating device is arranged in the utility model on the pipeline for be passed through gas so that import fiber drawing furnace in gas into
Higher temperature is just obtained before entering fiber drawing furnace, to reduce the temperature difference with furnace high-temperature gas.Two kinds of differences with this configuration
The situation that the gas of temperature carries out causing thermal field unstable when heat exchange will be improved, to improve the heat in fiber drawing furnace
Field stability further increases the geometric parameter of output optical fiber and the stability of optical parameter, improves optical fiber final product quality.
2, helicoidal structure is set by import pipe, and reduces the pitch of helical structure as far as possible, so that gas can
With resting on inside heating device for longer time, so that heating effect is more preferable.
Detailed description of the invention
Fig. 1 is the schematic diagram of fiber drawing furnace gas leading-in device.
Fig. 2 is that the import pipe shape in embodiment 1 is changed to axially continuous S type structural schematic diagram.
Fig. 3 is the schematic diagram that the import pipe shape in embodiment 1 is changed to axially continuous N-type.
Specific embodiment
The structure of the utility model and the course of work are described further with reference to the accompanying drawing.
Embodiment 1
Such as Fig. 1：A kind of fiber drawing furnace gas leading-in device, gatherer front end connect gas source, and tail end imported into wire-drawer-tower
It is interior.It includes heating device 1 and import pipe 2, and the cylindrical heater that heating device is arranged to an only pipeline inlet and outlet is logical
Road, import pipe are located in heating channel, and import pipe structure in heating channel is helical structure.Import pipe leads to indifferent gas
Body, the inert gas are helium and/or argon gas, and gas enters fiber drawing furnace by import pipe.Wherein heating device is resistance wire
Porcelain siphunculus is heated, import pipe and Resistant heating porcelain siphunculus are not directly contacted with, and conduct heat to import pipe by heat radiation
Interior gas.
Embodiment 2
Such as Fig. 2：Import pipe shape in embodiment 1 is changed to axially continuous S type structure 3.
Embodiment 3
Such as Fig. 3：Import pipe shape in embodiment 1 is changed to axially continuous N-type 4.
Above embodiments only express a kind of embodiment of the utility model, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.
Claims (5)
1. a kind of fiber drawing furnace gas leading-in device, including import pipe and heating device, which is characterized in that the heating device is
Hollow and both ends open heating channel, the import pipe are located in heating channel, and the import pipe enters heating channel
Afterwards in heating pipe inner bending.
2. fiber drawing furnace gas leading-in device according to claim 1, which is characterized in that the heating device adds for resistance wire
Hot porcelain siphunculus.
3. fiber drawing furnace gas leading-in device according to claim 1 or 2, which is characterized in that the import pipe is heating
It is axially helical structure in channel.
4. fiber drawing furnace gas leading-in device according to claim 1 or 2, which is characterized in that the import pipe is heating
It is axially continuous S type structure in channel.
5. fiber drawing furnace gas leading-in device according to claim 1 or 2, which is characterized in that the import pipe is heating
It is axially continuous N type junction structure in channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116806.0U CN208104228U (en) | 2018-01-24 | 2018-01-24 | A kind of fiber drawing furnace gas leading-in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116806.0U CN208104228U (en) | 2018-01-24 | 2018-01-24 | A kind of fiber drawing furnace gas leading-in device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208104228U true CN208104228U (en) | 2018-11-16 |
Family
ID=64128678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820116806.0U Active CN208104228U (en) | 2018-01-24 | 2018-01-24 | A kind of fiber drawing furnace gas leading-in device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208104228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955924A (en) * | 2021-12-03 | 2022-01-21 | 湖南瑞盈光电科技有限公司 | Tunnel furnace for 3D glass hot bending processing |
-
2018
- 2018-01-24 CN CN201820116806.0U patent/CN208104228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113955924A (en) * | 2021-12-03 | 2022-01-21 | 湖南瑞盈光电科技有限公司 | Tunnel furnace for 3D glass hot bending processing |
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