CN201890845U - Air seal device of fiber drawing furnace for drawing large-diameter optical fiber preform - Google Patents
Air seal device of fiber drawing furnace for drawing large-diameter optical fiber preform Download PDFInfo
- Publication number
- CN201890845U CN201890845U CN 201020276779 CN201020276779U CN201890845U CN 201890845 U CN201890845 U CN 201890845U CN 201020276779 CN201020276779 CN 201020276779 CN 201020276779 U CN201020276779 U CN 201020276779U CN 201890845 U CN201890845 U CN 201890845U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- diameter optical
- drum
- drawing furnace
- air seal
- 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 - Fee Related
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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
- C03B37/029—Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/80—Means for sealing the preform entry or upper end of the furnace
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/60—Optical fibre draw furnaces
- C03B2205/80—Means for sealing the preform entry or upper end of the furnace
- C03B2205/81—Means for sealing the preform entry or upper end of the furnace using gas
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)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
An air seal device of a fiber drawing furnace for drawing a large-diameter optical fiber preform comprises a drum which is arranged above the fiber drawing furnace and is closely connected with a furnace mouth, wherein the upper end face and the lower end face of the drum are respectively provided with holes with same size as that of the large-diameter optical fiber preform for the large-diameter optical fiber preform to pass through during drawing; one side of the drum is provided with a gas inlet for feeding inert gas; and the side wall of the drum is internally provided with a water circulating cooling pipe. When the large-diameter optical fiber preform is placed into the fiber drawing furnace through the holes at the upper end face and the lower end face of the drum for drawing, the inert gas is introduced from the gas inlet, an air seal layer is formed in a cavity of the drum, so that the air is prohibited from entering the fiber drawing furnace, and the oxidation of graphite pieces is effectively prevented. Meanwhile, the cold water is introduced into the water circulating cooling pipe, so that the temperature in the drum is effectively reduced, the service life of the air seal device is prolonged, and the replacement of the large-diameter optical fiber preform is convenient.
Description
Technical field
The utility model relates to the air seal set of a kind of device, especially fibre drawing furnace on the equipment of producing optical fiber.
Background technology
The existing fiber drawing furnace that is used for large-diameter optical fiber prefabricated stick drawn wire generally is not provided with air seal set, easily enters into fiber drawing furnace in wire drawing space-time air-capacitor, causes graphite piece oxidation in the stove, shortens the work-ing life of graphite piece.
Summary of the invention
In order to overcome the existing deficiency that is used for the fiber drawing furnace of large-diameter optical fiber prefabricated stick drawn wire, the utility model provides a kind of air seal set that is used for the fiber drawing furnace of large-diameter optical fiber prefabricated stick drawn wire, air enters into fiber drawing furnace in the time of can effectively avoiding wire drawing, prevents the oxidation of graphite piece.
A kind of air seal set that is used for the fiber drawing furnace of large-diameter optical fiber prefabricated stick drawn wire that the utility model provides, this device comprises the tube of being located at the fiber drawing furnace top and being right after with fire door, the upper and lower end face of tube respectively is provided with a size hole identical with large-diameter optical fiber prefabricated stick that supplies large-diameter optical fiber prefabricated stick to pass through when wire drawing, one Side of tube is provided with the inlet mouth that feeds rare gas element, is provided with the water cycle cooling tube in the Side wall of tube.
The beneficial effects of the utility model are: when large-diameter optical fiber prefabricated stick is put into the fiber drawing furnace wire drawing by the hole of the upper and lower end face of tube of the present utility model, feed rare gas element by inlet mouth, in the cavity of tube, form the sealing gland layer, stoped in the air admission fiber drawing furnace, effectively prevented the oxidation of graphite piece.Simultaneously, feed cold water in the water cycle cooling tube, can effectively reduce an interior temperature, help prolonging work-ing life of the present utility model, also the replacing for large-diameter optical fiber prefabricated stick provides convenience.
Description of drawings
Fig. 1 is a partial schematic sectional view of the present utility model.
In Fig. 1,1. tin, 2. fiber drawing furnace, 3. large-diameter optical fiber prefabricated stick, 4. inlet mouth, 5. water cycle cooling tube, 6. cavity.
Embodiment
With reference to Fig. 1, at the upper and lower end face of tube 1 the identical hole of a size and large-diameter optical fiber prefabricated stick 3 is set respectively, one Side of tube 1 is provided with the inlet mouth 4 that feeds rare gas element in the cavity 6 of tube 1, in the Side wall of tube 1 water cycle cooling tube 5 is set, and promptly makes the utility model.The utility model is located at the top of fiber drawing furnace 2 and is right after with fire door, the inlet mouth 4 and the water cycle cooling tube 5 of rare gas element is in communication with the outside, the utility model promptly can come into operation.
Claims (1)
1. air seal set that is used for the fiber drawing furnace of large-diameter optical fiber prefabricated stick drawn wire, it is characterized in that this device comprises the tube of being located at the fiber drawing furnace top and being right after with fire door, the upper and lower end face of tube respectively is provided with a size hole identical with large-diameter optical fiber prefabricated stick that supplies large-diameter optical fiber prefabricated stick to pass through when wire drawing, one Side of tube is provided with the inlet mouth that feeds rare gas element, is provided with the water cycle cooling tube in the Side wall of tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020276779 CN201890845U (en) | 2010-07-30 | 2010-07-30 | Air seal device of fiber drawing furnace for drawing large-diameter optical fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020276779 CN201890845U (en) | 2010-07-30 | 2010-07-30 | Air seal device of fiber drawing furnace for drawing large-diameter optical fiber preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890845U true CN201890845U (en) | 2011-07-06 |
Family
ID=44220322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020276779 Expired - Fee Related CN201890845U (en) | 2010-07-30 | 2010-07-30 | Air seal device of fiber drawing furnace for drawing large-diameter optical fiber preform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201890845U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838275A (en) * | 2012-08-28 | 2012-12-26 | 长飞光纤光缆有限公司 | Wiredrawing method and wiredrawing device for outer diameter fluctuation optical fiber perform |
| CN106746592A (en) * | 2016-12-16 | 2017-05-31 | 青海中利光纤技术有限公司 | The water-cooling air-sealing device of fibre drawing furnace |
| 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 |
| 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 |
| CN109384382A (en) * | 2018-11-27 | 2019-02-26 | 通鼎互联信息股份有限公司 | A kind of sealing device of fibre drawing furnace |
-
2010
- 2010-07-30 CN CN 201020276779 patent/CN201890845U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838275A (en) * | 2012-08-28 | 2012-12-26 | 长飞光纤光缆有限公司 | Wiredrawing method and wiredrawing device for outer diameter fluctuation optical fiber perform |
| CN102838275B (en) * | 2012-08-28 | 2015-02-04 | 长飞光纤光缆股份有限公司 | Wiredrawing method and wiredrawing device for outer diameter fluctuation optical fiber perform |
| CN106746592A (en) * | 2016-12-16 | 2017-05-31 | 青海中利光纤技术有限公司 | The water-cooling air-sealing device of fibre drawing furnace |
| 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 |
| CN107555780B (en) * | 2017-09-05 | 2023-08-08 | 江苏斯德雷特光纤科技有限公司 | Sealing device under extension 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 |
| CN109384382A (en) * | 2018-11-27 | 2019-02-26 | 通鼎互联信息股份有限公司 | A kind of sealing device of fibre drawing furnace |
| CN109384382B (en) * | 2018-11-27 | 2023-11-03 | 通鼎互联信息股份有限公司 | Sealing device of optical fiber drawing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HENGTONG PHOTOELECTRIC CO., LTD. Effective date: 20130227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130227 Address after: 215200 No. 100 Heng Road, Wujiang Economic Development Zone, Jiangsu, China Patentee after: Hengtong Optical Fibre Science and Technology Co., Ltd., Jiangsu Patentee after: Jiangsu Hengtong Photoelectric Co., Ltd. Address before: 215200 No. 100 Heng Road, Wujiang Economic Development Zone, Jiangsu, China Patentee before: Hengtong Optical Fibre Science and Technology Co., Ltd., Jiangsu |
|
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: JIANGSU HENGTONG PHOTOELECTRIC CO., LTD. Effective date: 20140402 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140402 Address after: 215200, No. 100, Heng Tong Road, Wujiang District, Jiangsu, Suzhou Patentee after: Hengtong Optical Fibre Science and Technology Co., Ltd., Jiangsu Address before: 215200 No. 100 Heng Road, Wujiang Economic Development Zone, Jiangsu, China Patentee before: Hengtong Optical Fibre Science and Technology Co., Ltd., Jiangsu Patentee before: Jiangsu Hengtong Photoelectric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |