CN107021616A - Small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace - Google Patents
Small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace Download PDFInfo
- Publication number
- CN107021616A CN107021616A CN201710398355.4A CN201710398355A CN107021616A CN 107021616 A CN107021616 A CN 107021616A CN 201710398355 A CN201710398355 A CN 201710398355A CN 107021616 A CN107021616 A CN 107021616A
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- CN
- China
- Prior art keywords
- prefabricated rods
- quartzy
- quartz sleeve
- fiber
- optical
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Classifications
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- 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
-
- 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
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- 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)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a kind of small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace, it includes being sealedly connected on the quartzy basic ring on entrance, quartzy sealing gland bowl is sealedly connected with quartzy basic ring, air seal set is also including being sealedly attached to quartzy sealing ring of the quartzy sealing gland bowl above and for the quartz sleeve being sheathed in prefabricated rods and on quartz sleeve and for being sheathed on the tail rod of prefabricated rods, between the madial wall of quartz sleeve and the lateral wall of prefabricated rods and it is distributed to have between the madial wall and tail rod of quartzy sealing ring and can forms the gap of sealing gland, the lower end of quartz sleeve is less than inflatable mouth on fiber drawing furnace.Quartz sleeve is set on sealing gland bowl, form air-flow differential to ensure the sealing of fiber drawing furnace using the small―gap suture between prefabricated rods or tail rod and quartz sleeve, oxygen is prevented to enter fiber drawing furnace, ensure the steady air current that tail rod enters after fiber drawing furnace using the quartz sleeve for going deep into furnace body simultaneously, improve the utilization rate of prefabricated rods, the quality of optical fiber and yield rate.
Description
Technical field
The present invention relates to optical fiber producing apparatus, more particularly to a kind of small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace.
Background technology
Now, along with the successive optimization and maturation of prefabricated rods technique, the size of prefabricated rods is increasing.It is same with this
When, the diameter of major diameter prefabricated rods also tends towards stability all the more.In face of the prefabricated rods of such major diameter, also just propose to fiber drawing furnace
Temperature field and the higher requirement of airflow field.Being designed as now the air seal structure of fiber drawing furnace based on silica wool or graphite paper more
Contact sealing gland.Although contact sealing gland disclosure satisfy that preferable sealing effectiveness, but inevitably to prefabricated rods surface
Produce pollution.In addition, when running into wire drawing needs cutting extremely and lifting prefabricated rods, contact sealing gland is easier to because of breakage or taken out of
And cause seal failure, cause oxygen to enter interior fittings after fiber drawing furnace and aoxidize.Finally, along with the increasing of preform diameter,
Hang the tail rod of prefabricated rods and the diameter difference of prefabricated rods is also becoming big so as to the gas in stove after tail rod enters fiber drawing furnace
Stream causes more to significantly affect.
The content of the invention
It is an object of the invention to provide a kind of good small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace of sealing gland.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of small reducing prefabricated rods fibre drawing furnace gas
Seal apparatus, it includes being sealedly connected on is sealedly connected with quartzy sealing gland on the quartzy basic ring on the entrance, the quartzy basic ring
Bowl, the air seal set is also including being sealedly attached to quartz sleeve of the quartzy sealing gland bowl above and for being sheathed in prefabricated rods
And the quartzy sealing ring on the quartz sleeve and for being sheathed on the tail rod of the prefabricated rods, the quartz sleeve
Madial wall and the prefabricated rods lateral wall between and the madial wall and the tail rod of the quartzy sealing ring between be distributed
With that can form the gap of sealing gland, the lower end of the quartz sleeve is less than inflatable mouth on fiber drawing furnace.
Optimization, the gap between the lateral wall of the madial wall of the quartz sleeve and the prefabricated rods is the first gap,
Gap between the lateral wall of the madial wall of the quartzy sealing ring and the tail rod is the second gap, first gap and the
The width in two gaps is both less than 2mm, and the length of the quartz sleeve is not less than 10cm.
Optimization, the quartz sleeve bottom is arranged on the quartzy sealing gland bowl, the upper end of the quartz sleeve
Outside is fixed with the retainer ring for being connected to the quartz sleeve on the quartzy sealing gland bowl.
Optimization, it is provided with ring-type graphite paper between the quartzy sealing gland bowl of institute and the quartzy basic ring.
Optimization, groove of the upper surface provided with annular of quartzy basic ring, the lower end of the quartzy sealing gland bowl has to be extended down
Annular boss, the boss is arranged in the groove.
Optimization, the upper surface of the furnace body is provided with the survey for the relative position for being used to measure quartzy basic ring and furnace body
Away from inductor.
Further, the ranging inductor has multiple and circular array to be distributed on the upper surface of the furnace body,
The center of circle of circle is located on the axis of the furnace body where all ranging inductors.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：The present invention is in sealing gland bowl
Upper setting quartz sleeve, forms air-flow differential to ensure fiber drawing furnace using the small―gap suture between prefabricated rods or tail rod and quartz sleeve
Sealing, prevent oxygen from entering fiber drawing furnace, while ensureing that tail rod enters after fiber drawing furnace using the quartz sleeve for going deep into furnace body
Steady air current, improves the utilization rate of prefabricated rods, the quality of optical fiber and yield rate.
Brief description of the drawings
Accompanying drawing 1 is the structure decomposition figure of small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace of the invention；
Accompanying drawing 2 is then assembling figure of the small reducing prefabricated rods of the invention with air sealer of optical-fiber wiredrawing furnace when normally using（Tail rod
When not entering fiber drawing furnace）；
Fig. 3 is then assembling figure of the small reducing prefabricated rods of the invention with air sealer of optical-fiber wiredrawing furnace when normally using（Tail rod enters
During fiber drawing furnace）.
Embodiment
The invention will be further described for shown embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace includes quartzy basic ring 5, quartzy sealing gland
Bowl 3, it is sealedly attached to the quartz sleeve 2 that is used for being set in prefabricated rods 0 on the quartzy sealing gland bowl 3 and positioned at the quartz
The top of sleeve 2 and the quartzy sealing ring 1 for being sheathed on the tail rod 7.
Fiber drawing furnace should be the fiber drawing furnace at least with upper inflatable mouth, and it includes furnace body 6, the upper end tool of furnace body 6
There is the entrance of prefabricated rods 0 and tail rod 7, quartzy basic ring 5 is sealedly connected on the entrance, quartzy sealing gland bowl 3 is sealedly connected on stone
On English basic ring 5.Between the madial wall of the quartz sleeve 2 and the lateral wall of the prefabricated rods 0 and the quartzy sealing ring 1
Having respectively between madial wall and the tail rod 7 is used for the gap that steady air flow plays sealing effectiveness simultaneously, the quartz sleeve 2
Madial wall and the prefabricated rods 0 lateral wall between gap be the first gap, the width in first gap is less than 2mm,
It, which is primarily served, prevents from passing the entrance of furnace body 6 in prefabricated rods 0 and tail rod enters after furnace body entrance between prefabricated rods 0 and entrance
The problem of there is air turbulence in gap cataclysm, the gap between the madial wall of the quartzy sealing ring 1 and the lateral wall of the tail rod 7
For the second gap, second gap is again smaller than 2mm, and it primarily serves sealing gland effect, in the present embodiment, the width in the first gap
Spend for 0.5mm, the width in the second gap is 0.3mm, and the length of quartz sleeve is 340mm, and its lower end is blown less than on fiber drawing furnace
Mouthful.
The bottom of quartz sleeve 2 is arranged on the quartzy sealing gland bowl 3, on the outside of the upper end of the quartz sleeve 2
Be fixed with the retainer ring 21 for the quartz sleeve 2 being connected on the quartzy sealing gland bowl 3.
Prevent impurity from falling into influence optical fiber quality in furnace body 6 simultaneously to improve sealing effectiveness, institute's 3 Hes of quartzy sealing gland bowl
Ring-type graphite paper 4, groove of the upper surface provided with annular of quartzy basic ring 5, the quartzy sealing gland bowl are provided between the quartzy basic ring 5
3 lower end has the annular boss extended down, and the boss is arranged in the groove.Ring-type graphite paper 4 is crushed on described
Between boss and groove and it is sheathed in prefabricated rods 0, because ring-type graphite paper 4 has certain elasticity, it can also have more prefabricated rods
Change in location does accommodation.
Selection 1mm bigger than tail rod outside diameter quartzy sealing ring 1 is positioned on the interface step of tail rod and prefabricated rods, then will
The prefabricated rods are hung on the fixed position of wire-drawer-tower prefabricated rods feed system.Quartzy basic ring 5 is positioned over furnace body upper surface
On, it is general to measure the quartzy edge of basic ring 5 to fiber drawing furnace lamina tecti edge respectively at front, rear, left and right four direction using ruler
Distance, the quartzy basic ring 5 of adjustment causes it to be in fiber drawing furnace lamina tecti middle position.The furnace body 6 is upper in the present embodiment
End face, which is provided with, to be used to measure quartzy basic ring 5 and the ranging inductor 8 of the relative position of furnace body 6.The ranging inductor 8 has
Multiple and circular array is distributed on the upper surface of the furnace body 6, the center of circle position of circle where all ranging inductors 8
In on the axis of the furnace body 6.Pass through the position of each ranging inductor 8 and the quartzy basic ring 5 of spacing adjustment of quartzy basic ring 5
Put, until it is coaxial in furnace body.
Ring-type graphite paper 4 is positioned in the quartzy annular groove of basic ring 5, and quartzy sealing gland bowl 3 is fixed on quartz by annular groove
On basic ring 5.The ring-type graphite paper 4 that the quartzy inner side of sealing gland bowl 3 is exposed gently is pressed down on the hand for wearing cleaning gloves, is made
Its oblique angle that dips down for there are 5 degree to 10 degree or so is obtained, to squeeze broken ring-type graphite paper 4 when preventing quartz sleeve 2 to be put into.In selection
Footpath 1-2mm bigger than prefabricated rods maximum gauge quartz sleeve 3, penetrates ring-type graphite paper 4 by quartz sleeve 2 and is pressed in its edge
Quartzy 3 tops of sealing gland bowl.
Prefabricated rods are passed through into quartz sleeve 2, slowly goed deep into furnace body 6.Prefabricated rods are needed according to prefabricated rods 0 during declining
With gap adjustment prefabricated rods 0 position of the inwall of quartz sleeve 2 so that prefabricated rods 0, which are tried one's best, is in the center group of quartz sleeve 2
Close structure and refer to Fig. 2.
, can be from body of heater because the gap between prefabricated rods 0 and quartz sleeve 2 is smaller and longer in normal drawing process
Good gradual pressure difference is upwardly formed, therefore can effectively keep fiber drawing furnace in the gas pressure of position of upper, it is to avoid oxygen is from fire door
Into fiber drawing furnace.And touched because this kind of air seal structure can be prevented effectively from prefabricated rods with other accessories, so can drop significantly
Low prefabricated rods surface suffers contaminated probability, the effective guarantee intensity of finished product optical fiber.Further, since in the structure, ring-type stone
The position periphery that black paper 4 is placed, which is retained, gap, when prefabricated rods shift in position, and operation employee can be by adjusting quartz sleeve 3
Ensure that prefabricated rods remain to the stable center in quartz sleeve 3 with the position of ring-type graphite paper 4.
When prefabricated rods finish up, it can be placed on quartz sleeve 3 due to being placed on the quartzy sealing ring 1 at tail rod, therefore still
It ensure that the sealing situation on fiber drawing furnace top.Further, since the quartz sleeve 3 goed deep into stove is devised, so received in tail rod
During tail, remain to preferably ensure that the stability of wire drawing gas stream in the stove refers to Fig. 3.This is designed to that prefabricated rods tail is effectively ensured
The intensity and diameter fluctuation of portion's optical fiber, at the same can also be prevented effectively from afterbody because oxygen enter stove in and caused by fiber drawing furnace graphite match somebody with somebody
The oxidational losses of part.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (7)
1. a kind of small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace, it includes being sealedly connected on the quartzy base on the entrance
Quartzy sealing gland bowl is sealedly connected with ring, the quartzy basic ring, it is characterised in that：The air seal set also includes being sealedly attached to
The quartzy sealing gland bowl is upper and for the quartz sleeve being sheathed in prefabricated rods and on the quartz sleeve and for covering
Quartzy sealing ring on the tail rod of the prefabricated rods, the lateral walls of the madial wall of the quartz sleeve and the prefabricated rods it
Between and the madial wall and the tail rod of the quartzy sealing ring between distribution have can form the gap of sealing gland, the quartz sleeve
The lower end of cylinder is less than inflatable mouth on fiber drawing furnace.
2. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 1, it is characterised in that：The quartz
Gap between the madial wall of sleeve and the lateral wall of the prefabricated rods is the first gap, the madial wall of the quartzy sealing ring with
Gap between the lateral wall of the tail rod is the second gap, and the width in first gap and the second gap is both less than 2mm, institute
The bottom for stating quartz sleeve should be less than gas outlet 10mm on fiber drawing furnace.
3. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 1, it is characterised in that：The quartz
Sleeve bottom is arranged on the quartzy sealing gland bowl, and being fixed with the outside of the upper end of the quartz sleeve is used for the stone
English sleeve connection is in the retainer ring on the quartzy sealing gland bowl.
4. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 1, it is characterised in that：The quartzy gas of institute
Seal and ring-type graphite paper is provided between bowl and the quartzy basic ring.
5. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 1, it is characterised in that：Quartzy basic ring
Groove of the upper surface provided with annular, the lower end of the quartzy sealing gland bowl has the annular boss extended down, and the boss is worn
In the groove.
6. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 1, it is characterised in that：The stove sheet
The upper surface of body is provided with the ranging inductor for the relative position for being used to measure quartzy basic ring and furnace body.
7. small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace according to claim 6, it is characterised in that：The ranging
Inductor has multiple and circular array to be distributed on the upper surface of the furnace body, circle where all ranging inductors
The center of circle is located on the axis of the furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398355.4A CN107021616B (en) | 2017-05-31 | 2017-05-31 | Gas sealing device for optical fiber drawing furnace for small reducing prefabricated rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398355.4A CN107021616B (en) | 2017-05-31 | 2017-05-31 | Gas sealing device for optical fiber drawing furnace for small reducing prefabricated rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107021616A true CN107021616A (en) | 2017-08-08 |
| CN107021616B CN107021616B (en) | 2023-03-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710398355.4A Active CN107021616B (en) | 2017-05-31 | 2017-05-31 | Gas sealing device for optical fiber drawing furnace for small reducing prefabricated rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107021616B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555780A (en) * | 2017-09-05 | 2018-01-09 | 江苏斯德雷特通光光纤有限公司 | One kind extension stove lower sealing device |
| CN107902886A (en) * | 2017-12-21 | 2018-04-13 | 上海塑洁环保工程设备有限公司 | Preform pickler |
| CN108083656A (en) * | 2017-12-29 | 2018-05-29 | 通鼎互联信息股份有限公司 | A kind of nitrogen guiding device |
| CN109592894A (en) * | 2018-12-25 | 2019-04-09 | 通鼎互联信息股份有限公司 | A kind of drawing optical fibers sealing device and encapsulating method |
| CN115417590A (en) * | 2022-10-11 | 2022-12-02 | 江苏亨通光导新材料有限公司 | Automatic sealing device and method for optical fiber preform extending furnace mouth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115417590A (en) * | 2022-10-11 | 2022-12-02 | 江苏亨通光导新材料有限公司 | Automatic sealing device and method for optical fiber preform extending furnace mouth |
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| CN107021616B (en) | 2023-03-10 |
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Effective date of registration: 20230329 Address after: 311400 No. 608, golfer Road, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG FUCHUNJIANG PHOTO-ELECTRONIC SCIENCE & TECHNOLOGY CO.,LTD. Address before: 215233 beside Sany Road, Badu Development Zone, Zhenze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee before: JIANGSU FUCHUNJIANG PHOTOELECTRIC Co.,Ltd. |
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