CN108083656B - Nitrogen gas guiding device - Google Patents
Nitrogen gas guiding device Download PDFInfo
- Publication number
- CN108083656B CN108083656B CN201711473848.6A CN201711473848A CN108083656B CN 108083656 B CN108083656 B CN 108083656B CN 201711473848 A CN201711473848 A CN 201711473848A CN 108083656 B CN108083656 B CN 108083656B
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- bowl
- arc surface
- airflow cavity
- bulge
- small holes
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The application provides a nitrogen gas flow guiding device, which comprises an upper bowl and a lower bowl positioned below the upper bowl, wherein one sides of the bottoms of the upper bowl and the lower bowl are close to each other, and an intermediate is arranged between the bottoms of the upper bowl and the lower bowl; the middle part of the intermediate body is provided with a bulge along the circumferential direction, the outer edge of the bulge is provided with a top arc surface part, and two sides of the bulge are respectively provided with an upper arc surface part connected to the upper bowl bottom and a lower arc surface part connected to the lower bowl bottom; an upper airflow cavity is formed between the upper arc surface and the bowl bottom of the upper bowl, and a lower airflow cavity is formed between the lower arc surface and the bowl bottom of the lower bowl; the bowl bottom of the upper bowl is provided with a plurality of small holes pointing to the upper airflow cavity; the bowl bottom of the lower bowl is provided with a plurality of small holes pointing to the lower bowl bottom of the downward airflow cavity. The device can play an excellent role in guiding flow, so that the nitrogen flow of the air seal part and the nitrogen flow entering the glass tube of the curing furnace are reasonably distributed, and the curing effect of the optical fiber coating is optimal.
Description
Technical Field
The application belongs to the technical field of optical fiber coating curing, and particularly relates to a nitrogen flow guiding device.
Background
The coating and curing technology of the optical fiber is a very critical link in the production process. The existing coating and curing technology of the optical fiber mainly adopts a light curing technology, namely, the optical fiber is coated and then passes through a series of curing ovens, the curing ovens are internally provided with a lamp tube for providing ultraviolet light, the ultraviolet light can irradiate the surface of the optical fiber through a transparent glass tube in the curing ovens, so that the coating is cured, and the curing degree of the coating determines various performance indexes of the optical fiber and has extremely important influence. In the actual production process, because the high-speed movement of the optical fiber brings the air in the environment into the glass tube in the curing furnace, and the oxygen in the air has a strong polymerization inhibition effect, so that the curing degree of the coating is reduced, the outside air is required to be blocked outside, inert gas is required to be filled into the glass tube, the curing effect of the coating is reduced by the oxygen in the tube is prevented, the nitrogen is a cheap and stable gas which is the first choice, and the method for introducing the nitrogen into the glass tube and blocking the air is particularly important. If the design of the flow guiding device is improper, the air flow speed can be greatly reduced, the effect is affected, in addition, the upward air seal nitrogen flow and the downward glass center tube nitrogen flow cannot be distributed according to the actual wire drawing speed, so that unnecessary waste is caused, and the optimal effect cannot be achieved. Therefore, the optical fiber coating curing link in the optical fiber industry at present needs a nitrogen flow guiding device which is simple, reduces the cost and has better effect, and the application is developed and designed based on the background.
Disclosure of Invention
In view of the above, the present application is directed to overcoming the defects in the prior art and providing a nitrogen flow guiding device.
In order to achieve the above purpose, the technical scheme of the application is realized as follows:
a nitrogen gas flow guiding device comprises an upper bowl and a lower bowl below the upper bowl, wherein one sides of the bottoms of the upper bowl and the lower bowl are close to each other, and an intermediate is arranged between the bottoms of the upper bowl and the lower bowl; the middle part of the intermediate body is provided with a bulge along the circumferential direction, the outer edge of the bulge is provided with a top arc surface part, and two sides of the bulge are respectively provided with an upper arc surface part connected to the upper bowl bottom and a lower arc surface part connected to the lower bowl bottom; an upper airflow cavity is formed between the upper arc surface and the bowl bottom of the upper bowl, and a lower airflow cavity is formed between the lower arc surface and the bowl bottom of the lower bowl; the bowl bottom of the upper bowl is provided with a plurality of small holes pointing to the upper airflow cavity; the bowl bottom of the lower bowl is provided with a plurality of small holes pointing to the lower bowl bottom of the downward airflow cavity.
Further, the small holes at the bottom of the upper bowl are uniformly distributed by taking the center of the intermediate as the center.
Further, the small holes at the bottom of the lower bowl are uniformly distributed by taking the center of the intermediate as the center.
Further, the upper bowl, the intermediate body and the lower bowl are of an integrated structure.
Further, the upper bowl, the intermediate body and the lower bowl are integrally formed copper pieces.
Compared with the prior art, the application has the following advantages:
the device can play an excellent guiding effect, can upwards and downwards split the air flow, a part of the air flow flows along the upper cambered surface of the protruding part and finally enters the small hole at the bottom of the upper bowl, a part of the air flow flows along the lower cambered surface of the protruding part and finally enters the small hole at the bottom of the lower bowl, the cambered surface design can greatly reduce nitrogen loss, and the position of the protruding part in the middle of the device can split the blown nitrogen according to the requirement during design, so that the nitrogen flow of the air seal part and the nitrogen flow in the glass tube of the entering curing furnace are reasonably distributed, and the curing effect of the optical fiber coating is optimal.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
fig. 4 is a schematic perspective view of the structure of the present application.
Reference numerals illustrate:
1-bowl loading; 2-bowl setting; 3-intermediates; 4-top arc face; 5-upper arc face; 6-lower arc face; 7-an upper airflow cavity; 8-a lower airflow cavity; 9-small holes at the bottom of the upper bowl; 10-small holes at the bottom of the bowl.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In the description of the application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the application and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present application can be understood by those of ordinary skill in the art in a specific case.
The application will be described in detail below with reference to the drawings in connection with embodiments.
The nitrogen flow guiding device comprises an upper bowl 1 and a lower bowl 2 below the upper bowl, wherein one sides of the bottoms of the upper bowl and the lower bowl are close to each other, and an intermediate 3 is arranged between the bottoms of the upper bowl and the lower bowl; the middle part of the intermediate body 3 is provided with a bulge along the circumferential direction, the outer edge of the bulge is provided with a top arc surface part 4, and two sides of the bulge are respectively provided with an upper arc surface part 5 connected to the upper bowl bottom and a lower arc surface part 6 connected to the lower bowl bottom; an upper airflow cavity 7 is formed between the upper arc surface part and the bowl bottom of the upper bowl, and a lower airflow cavity 8 is formed between the lower arc surface part 6 and the bowl bottom of the lower bowl; the bowl bottom of the upper bowl is provided with a plurality of small holes 9 pointing to the upper airflow cavity; the bottom of the lower bowl is provided with a plurality of small holes 10 which are directed to the downward airflow cavity.
According to actual demands, the positions of the intermediate bodies can be designed to be different in height, and nitrogen is split in different proportions up and down to match equipment, so that the optimal flow guiding effect is achieved. For example, the ratio of the heights of the upper cambered surface part and the lower cambered surface part in the vertical direction is changed, so that the diversion effect of different ratios is changed. In actual use, the guide plates can be adhered to the upper arc surface and the lower arc surface, and the guide plates are adhered to the surfaces of the upper arc surface or the lower arc surface, so that the size of the space of the upper airflow cavity or the lower airflow cavity is changed, and the aim of changing the diversion proportion is fulfilled.
When outside nitrogen blows into the bulge of this device midbody, the air current can begin the reposition of redundant personnel along the top circular arc part of midbody, and a part flows along bulge upper arc surface portion and finally gets into the bottom of the bowl aperture, and a part flows along bulge lower arc surface portion and finally gets into the bottom of the bowl aperture, and this kind of cambered surface design can greatly reduce nitrogen loss, and the position of the bulge in the middle of the device also can shunt the nitrogen gas of blowing in as required when the design, makes gas seal part nitrogen flow and get into the intraductal nitrogen gas flow of curing oven glass and carry out reasonable distribution, makes optical fiber coating solidification effect reach the best.
The small holes at the bottom of the upper bowl corresponding to the upper arc surface part 5 are uniformly distributed by taking the center of the intermediate as the center. The small holes at the bottom of the lower bowl corresponding to the lower arc surface part 6 are uniformly distributed by taking the center of the intermediate as the center, so that the uniform dispersion of the air flow entering the corresponding air flow cavity is ensured.
The upper bowl 1, the intermediate 3 and the lower bowl 2 are integrally formed. Specifically, the upper bowl, the intermediate body and the lower bowl are integrally formed copper pieces.
When the device is used, the device is placed in a nitrogen cover connected with external nitrogen, gas is blown into the nitrogen cover from the outside, the gas is separated from the middle body of the device, and part of the gas is blown out upwards along the upper cambered surface of the convex part of the middle body and passes through the small holes at the bottom of the upper bowl of the flow guiding device, so that the gas seal function is realized, and the entry of external gas is prevented; part of the air is blown downwards along the lower cambered surface of the middle body bulge part and through the lower bowl bottom small hole of the flow guiding device, enters the curing furnace, creates an inactive curing atmosphere, can reduce nitrogen loss during use, distributes the proportion of upward and downward air flows, improves the curing effect of the curing furnace, and has the advantages of simple device, convenient operation and larger popularization and application value.
The above embodiments are merely preferred embodiments of the present application and are not intended to limit the present application, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A nitrogen gas guiding device, characterized in that: comprises an upper bowl and a lower bowl positioned below the upper bowl, wherein one sides of the bottoms of the upper bowl and the lower bowl are close to each other, and an intermediate body for guiding flow is arranged between the bottoms of the upper bowl and the lower bowl; the middle part of the intermediate body is provided with a bulge along the circumferential direction, the outer edge of the bulge is provided with a top arc surface part, and two sides of the bulge are respectively provided with an upper arc surface part connected to the upper bowl bottom and a lower arc surface part connected to the lower bowl bottom; an upper airflow cavity is formed between the upper arc surface and the bowl bottom of the upper bowl, and a lower airflow cavity is formed between the lower arc surface and the bowl bottom of the lower bowl; the bowl bottom of the upper bowl is provided with a plurality of small holes pointing to the upper airflow cavity; the bowl bottom of the lower bowl is provided with a plurality of small holes at the bottom of the lower bowl pointing to the downward airflow cavity; the upper arc surface and the lower arc surface are adhered with the guide plates, the guide plates are attached to the surfaces of the upper arc surface part or the lower arc surface part, and the purpose of changing the diversion proportion is achieved by changing the space size of the upper airflow cavity or the lower airflow cavity.
2. A nitrogen gas deflector as recited in claim 1, wherein: the upper bowl, the intermediate body and the lower bowl are integrally formed copper pieces.
3. A nitrogen gas deflector as recited in claim 1, wherein: the small holes at the bottom of the upper bowl are uniformly distributed by taking the center of the intermediate as the center.
4. A nitrogen gas deflector as recited in claim 1, wherein: the small holes at the bottom of the lower bowl are uniformly distributed by taking the center of the intermediate as the center.
5. A nitrogen gas deflector as recited in claim 1, wherein: the upper bowl, the intermediate body and the lower bowl are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473848.6A CN108083656B (en) | 2017-12-29 | 2017-12-29 | Nitrogen gas guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473848.6A CN108083656B (en) | 2017-12-29 | 2017-12-29 | Nitrogen gas guiding device |
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| Publication Number | Publication Date |
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| CN108083656A CN108083656A (en) | 2018-05-29 |
| CN108083656B true CN108083656B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711473848.6A Active CN108083656B (en) | 2017-12-29 | 2017-12-29 | Nitrogen gas guiding device |
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| CN101549962A (en) * | 2009-05-15 | 2009-10-07 | 长飞光纤光缆有限公司 | Method and device for removing coating solidifying volatile material in optical fibre drawing process |
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| JP3788301B2 (en) * | 2001-09-14 | 2006-06-21 | 住友電気工業株式会社 | Gas shunting device, porous glass base material manufacturing device, and porous glass base material manufacturing method |
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| JPS6418934A (en) * | 1987-07-13 | 1989-01-23 | Sumitomo Electric Industries | Optical fiber drawing furnace |
| US20030224920A1 (en) * | 2002-05-28 | 2003-12-04 | Woon-Fong Leung | Rotating-machine bowl assembly with flow guide |
| US20060130524A1 (en) * | 2002-12-05 | 2006-06-22 | Nextrom Holding S.A. | Method and apparatus for making optical fibres |
| CN101549962A (en) * | 2009-05-15 | 2009-10-07 | 长飞光纤光缆有限公司 | Method and device for removing coating solidifying volatile material in optical fibre drawing process |
| CN103304135A (en) * | 2013-07-05 | 2013-09-18 | 江苏法尔胜光子有限公司 | Optical fiber drawing method for large-diameter optical fiber preform rod |
| CN104446007A (en) * | 2014-12-04 | 2015-03-25 | 中天科技光纤有限公司 | Device for improving sealing performance of UV curing furnace |
| CN204474533U (en) * | 2015-02-17 | 2015-07-15 | 通鼎互联信息股份有限公司 | A kind of major diameter fluctuation prefabricated stick drawn wire tightness system |
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| CN106746748A (en) * | 2016-12-09 | 2017-05-31 | 青海中利光纤技术有限公司 | The ventilation unit of optical fiber curing stove |
| CN206289171U (en) * | 2016-12-16 | 2017-06-30 | 青海中利光纤技术有限公司 | The water-cooling air-sealing device of fibre drawing furnace |
| 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 |
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| CN108083656A (en) | 2018-05-29 |
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