CN201626915U - Hot-furnace bar changing device of fiber drawing furnace - Google Patents
Hot-furnace bar changing device of fiber drawing furnace Download PDFInfo
- Publication number
- CN201626915U CN201626915U CN2010201193390U CN201020119339U CN201626915U CN 201626915 U CN201626915 U CN 201626915U CN 2010201193390 U CN2010201193390 U CN 2010201193390U CN 201020119339 U CN201020119339 U CN 201020119339U CN 201626915 U CN201626915 U CN 201626915U
- Authority
- CN
- China
- Prior art keywords
- furnace
- drawing furnace
- spacing sleeve
- isolation sleeve
- fiber drawing
- 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.)
- Expired - Lifetime
Links
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
- 229910002804 graphite Inorganic materials 0.000 abstract description 13
- 239000010439 graphite Substances 0.000 abstract description 13
- 238000007664 blowing Methods 0.000 abstract description 8
- 238000002955 isolation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005491 wire drawing Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 241001517488 Clavus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The utility model relates to a hot-furnace bar changing device of a fiber drawing furnace, which is characterized by comprising an isolation sleeve. A connection plate is arranged at the lower end of the isolation sleeve and connected with a top cover of a drawing furnace; a light ring type shutter is installed at the upper end of the isolation sleeve; an air blowing pipe is arranged in the upper middle portion or the middle of the isolation sleeve along a peripheral direction; an air blowing opening of the air blowing pipe is arranged inwards; and the air blowing pipe is communicated with a pressure nitrogen source. The isolation sleeve is in a cylinder shape, a hollow sealed jacket is arranged along the wall of the cylinder; and the upper portion and the lower portion of the hollow sealed jacket are respectively connected with a water inlet pipe and a water outlet pipe. The hot-furnace bar changing device has the advantages of 1, capabilities of effectively reducing entering of air in exchanging process of pre-manufactured bars, and prolonging service life of drawing furnace graphite assemblies, and 2 capabilities of performing bar exchanging operation without furnace stoppage when the drawing furnace is at higher temperature ranging from 1200 DEG C to 1500 DEG C, effectively reducing stopping time of the drawing furnace caused by bar exchanging in fiber drawing process, improving drawing effect, and improving use efficiency of the device.
Description
Technical field
The utility model relates to the hot stove of a kind of fibre drawing furnace and changes bar device, so that fiber drawing furnace is finished the replacing preform under not blowing out preset condition, belongs to the optical-fiber processing equipment technical field.
Background technology
The existing fiber fiber drawing furnace mainly contains graphite resistor furnace, graphite induction furnace etc., though its principle of work has than a large amount of graphite components are all arranged in the big difference stove.And graphite is extremely responsive to air, and the condition of high temperature contacts the mass consumption that can cause graphite components with air.Can guarantee that graphite components does not contact with air though have the sealing gland technology of fiber drawing furnace now in drawing process, be difficult to avoid to finish the back and change the complete and outside air isolation of graphite components in the optical fiber prefabricating rod motion that this process is bigger to the graphite components loss in wire drawing.Along with the drawing optical fibers development of technology, the size of preform and fiber drawing furnace increases gradually, make preform go into the corresponding increase of wire drawing fire door of stove, thereby cause and change that more air pole enter in the stove graphite oxide assembly easily in the prefabricated rods rod motion from the wire drawing fire door.Usually adopt blowing out to treat that the fiber drawing furnace temperature is reduced to 100～200 ℃ and changes the clubs work more at present,, also cause declining to a great extent of equipment service efficiency though this measure can reduce the consumption of graphite components.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and provides a kind of hot stove of fibre drawing furnace that can make not blowing out of fiber drawing furnace change rod to change bar device, can effectively prevent to change air admission fiber drawing furnace graphite oxide assembly in the rod motion, and improve the service efficiency of equipment.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: include a spacing sleeve, terminal pad is set in the spacing sleeve lower end and the fiber drawing furnace overhead guard joins, aperture formula shutter is installed in the upper end of spacing sleeve, middle and upper part or edge, middle part at spacing sleeve circumferentially are provided with gas blow pipe, the puff port of gas blow pipe is inside, and gas blow pipe is connected with the pressure nitrogen gas source.
Press such scheme, described spacing sleeve is a cylinder barrel shaped, is provided with the airtight water jacket of hollow along the cylinder barrel, and the upper and lower of the airtight water jacket of hollow connects inlet tube and outlet tube respectively.
When the utility model uses it is installed on top, fiber drawing furnace top, is tightly connected, install when connecting and guarantee that spacing sleeve is concentric with the wire drawing fire door by lower end terminal pad and fiber drawing furnace, with the centering behind the civilian dress rod operate can this device as reference.The height of this device spacing sleeve is used for the quartz piece 3 of sealing gland a little more than the wire drawing fire door, the aperture can be decided according to the concrete size of wire drawing fire door, the inboard can be according to the different 10～30mm that are controlled at of size with the quartz piece gap, aperture formula shutter is installed on device top, can carry out concentric opening and closing by circumferential direction, be used for the replacing of preform 1.For reducing the temperature protection shutter of this device, the airtight water jacket of hollow is linked to each other with recirculated cooling water by inlet tube and outlet tube; Simultaneously,, insert nitrogen, form sealing gland by gas blow pipe for better stoping the air admission fiber drawing furnace.In addition, change when clubs is done and to prevent air admission at fiber drawing furnace annealing pipe end mouth with expanding stopple shutoff sealing.
The beneficial effects of the utility model are: 1, effectively reduce entering of air in the prefabricated rods replacing process, improve the work-ing life of fiber drawing furnace graphite components; 2, can be under 1200～1500 ℃ the comparatively high temps not blowing out at fiber drawing furnace and change clubs and do, change the fiber drawing furnace stop time that rod causes, not only improve the service efficiency that the wire drawing effect has also improved equipment thereby effectively reduced in the drawing optical fibers process.
Description of drawings
Fig. 1 is the positive TV structure and the user mode figure that is connected with fiber drawing furnace of an embodiment of the utility model.
Embodiment
Fibre drawing furnace comprises fiber drawing furnace body of heater 7, install annealing pipe 8 in the lower end of body of heater, the wire drawing fire door of body of heater upper end is used for the quartz piece 3 of sealing gland in installation, the utility model embodiment includes a spacing sleeve 4, described spacing sleeve is a cylinder barrel shaped, terminal pad is set in the spacing sleeve lower end and the sealing of fiber drawing furnace overhead guard is joined, aperture formula shutter 2 is installed in the upper end of spacing sleeve, aperture formula shutter is a manual iris formula shutter, edge, middle and upper part at spacing sleeve circumferentially is provided with 3～6 gas blow pipes 10, the puff port of gas blow pipe is inside, and gas blow pipe is connected with the pressure nitrogen gas source; Cylinder barrel along spacing sleeve is provided with the airtight water jacket 11 of hollow, and the upper and lower of the airtight water jacket of hollow connects inlet tube and outlet tube 5,6 respectively, is connected with recirculated cooling water, is used for the cooling of spacing sleeve.In addition, when the displacement prefabricated rods, can prevent in the air admission stove at annealing pipe 8 end mouth with expanding stopple 9 shutoff.
The recirculated cooling water that present embodiment when work keeps the hollow sealing water jacket is in wire drawing and change in the rod motion and open all the time, after wire drawing finishes, gives device the inner nitrogen that feeds, and reduces furnace temperature to 1200 ℃, shuts fiber drawing furnace bottom annealing pipe with expanding stopple.Speed with 100～150mm/min promotes prefabricated rods, when the prefabricated rods tapering begins to propose plane, diaphragm shutter place, along with the vary in diameter in tapering, close aperture formula shutter gradually, guarantee shutter with the gap of prefabricated rods in 2mm, the shutter closure is proposed fully until the tapering.More renew prefabricated rods, be reversed by operation before in the following rod motion, open shutter gradually, normally carry out follow-up blanking, wear the silk operation until the shutter standard-sized sheet.
The utility model sees Table one with the situation that the 150mm diameter preform drawing tower that this device is not installed compares.
[table]
Embodiment compares with Comparative Examples as can be seen from Table I, saves nearly half the time, has greatly improved plant efficiency.Use this device to carry out hot stove and change clavus and economized the time that the fiber drawing furnace cooling heats up and consumed, and preform has become the optical fiber industry development to the large size development at present.Large-sized preform must be accompanied by the lifting of the fiber drawing furnace size power that adapts with it, and its cooling temperature-rise period will consume more times.The utility model can be changed adapting to the preform drawing technology of 50mm～300mm diameter according to fiber drawing furnace fire door size, and all the more obvious for large-sized more wire-drawing technology advantage of the present utility model.
Claims (4)
1. the hot stove of fibre drawing furnace changes bar device, it is characterized in that including a spacing sleeve, terminal pad is set in the spacing sleeve lower end and the fiber drawing furnace overhead guard joins, aperture formula shutter is installed in the upper end of spacing sleeve, middle and upper part or edge, middle part at spacing sleeve circumferentially are provided with gas blow pipe, the puff port of gas blow pipe is inside, and gas blow pipe is connected with the pressure nitrogen gas source.
2. change bar device by the hot stove of the described fibre drawing furnace of claim 1, it is characterized in that described spacing sleeve is a cylinder barrel shaped, be provided with the airtight water jacket of hollow along the cylinder barrel, the upper and lower of the airtight water jacket of hollow connects inlet tube and outlet tube respectively.
3. change bar device by claim 1 or the hot stove of 2 described fibre drawing furnaces, it is characterized in that aperture formula shutter is a manual iris formula shutter.
4. change bar device by claim 1 or the hot stove of 2 described fibre drawing furnaces, it is characterized in that circumferentially being provided with 3～6 gas blow pipes on the edge, middle and upper part of spacing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201193390U CN201626915U (en) | 2010-02-11 | 2010-02-11 | Hot-furnace bar changing device of fiber drawing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201193390U CN201626915U (en) | 2010-02-11 | 2010-02-11 | Hot-furnace bar changing device of fiber drawing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201626915U true CN201626915U (en) | 2010-11-10 |
Family
ID=43058307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201193390U Expired - Lifetime CN201626915U (en) | 2010-02-11 | 2010-02-11 | Hot-furnace bar changing device of fiber drawing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201626915U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249534A (en) * | 2011-05-31 | 2011-11-23 | 长飞光纤光缆有限公司 | Full diameter optical fiber preform rod induction fiber drawing furnace heating apparatus |
| CN102786221A (en) * | 2012-08-09 | 2012-11-21 | 杭州富通通信技术股份有限公司 | Light-shielding and heat-insulating device for fiber drawing furnaces |
| CN107021616A (en) * | 2017-05-31 | 2017-08-08 | 江苏富春江光电有限公司 | Small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace |
| CN108975678A (en) * | 2018-10-30 | 2018-12-11 | 湖北凯乐量子通信光电科技有限公司 | The anti-graphite piece oxidation unit of fiber drawing furnace high temperature rod withdrawal |
| CN110174724A (en) * | 2019-04-08 | 2019-08-27 | 安徽长荣光纤光缆科技有限公司 | A kind of low-loss single-mode optical fiber and preparation method thereof |
| CN111620559A (en) * | 2020-05-25 | 2020-09-04 | 华能(泰安)光电科技有限公司 | Optical fiber perform high temperature rod changing device |
-
2010
- 2010-02-11 CN CN2010201193390U patent/CN201626915U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249534A (en) * | 2011-05-31 | 2011-11-23 | 长飞光纤光缆有限公司 | Full diameter optical fiber preform rod induction fiber drawing furnace heating apparatus |
| US8950218B2 (en) | 2011-05-31 | 2015-02-10 | Yangze Optical Fibre And Cable Company Ltd. | Heating apparatus of induction furnace used for stretching large-diameter preformed rods of optical fibers |
| CN102786221A (en) * | 2012-08-09 | 2012-11-21 | 杭州富通通信技术股份有限公司 | Light-shielding and heat-insulating device for fiber drawing furnaces |
| CN102786221B (en) * | 2012-08-09 | 2014-09-24 | 杭州富通通信技术股份有限公司 | Light-shielding and heat-insulating device for fiber drawing furnaces |
| CN107021616A (en) * | 2017-05-31 | 2017-08-08 | 江苏富春江光电有限公司 | Small reducing prefabricated rods air sealer of optical-fiber wiredrawing furnace |
| CN107021616B (en) * | 2017-05-31 | 2023-03-10 | 江苏富春江光电有限公司 | Gas sealing device for optical fiber drawing furnace for small reducing prefabricated rod |
| CN108975678A (en) * | 2018-10-30 | 2018-12-11 | 湖北凯乐量子通信光电科技有限公司 | The anti-graphite piece oxidation unit of fiber drawing furnace high temperature rod withdrawal |
| CN110174724A (en) * | 2019-04-08 | 2019-08-27 | 安徽长荣光纤光缆科技有限公司 | A kind of low-loss single-mode optical fiber and preparation method thereof |
| CN111620559A (en) * | 2020-05-25 | 2020-09-04 | 华能(泰安)光电科技有限公司 | Optical fiber perform high temperature rod changing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGTZE OPTICAL FIBRE AND CABLE CO., LTD Free format text: FORMER NAME: CHANGFEI FIBRE-OPTICAL + OPTICAL CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee after: Yangtze Optical Fibre and Cable Co., Ltd Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee before: Changfei Fibre-Optical & Optical Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |