CN207276495U - A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing - Google Patents
A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing Download PDFInfo
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- CN207276495U CN207276495U CN201721135275.1U CN201721135275U CN207276495U CN 207276495 U CN207276495 U CN 207276495U CN 201721135275 U CN201721135275 U CN 201721135275U CN 207276495 U CN207276495 U CN 207276495U
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- air sealing
- wiredrawing
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Abstract
The utility model provides a kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing, it is characterised in that：Including upper snap ring, ring-shaped graphite felt, additional sealing gland sheath, cooling water intake, lower snap ring, protect gas air inlet, cooling water outlet, upper snap ring is placed in furnace gas seal apparatus upper end, it is connected to form groove with furnace gas seal apparatus body, ring-shaped graphite felt is embedded in groove, form upper sealing ring, additional sealing gland sheath is wrapped in furnace gas seal apparatus periphery wall, cooling water into, water outlet extends outside furnace gas seal apparatus, it is located at furnace gas seal apparatus lower end and upper end respectively, lower snap ring is placed in furnace gas seal apparatus lower end, groove is formed with furnace gas seal apparatus body, ring-shaped graphite felt is embedded in groove, form lower sealing ring, protection gas air inlet is designed at furnace gas seal apparatus bottom and is connected with furnace gas seal apparatus cavity.The utility model air seal set, which can be realized, will not occur gas leakage and furnace oxidation when optical wand reducing district passes in and out stove and realize that reducing optical wand continues wire drawing without fluctuation.
Description
Technical field
The utility model belongs to fiber manufacturing installation technical field, more particularly relates to a kind of for reducing optical wand wire drawing
Air sealing device of wiredrawing furnace.
Background technology
The process of fiber manufacturing is that quartzy prefabricated rods are put into melting furnace to be heated to quartzy softening, is pulled out carefully from furnace bottom
Quartz fibre, that is, optical fiber, melting furnace is using heating graphite element, it is necessary to toward being passed through the mixed of argon gas or argon gas and nitrogen in stove
Gas is closed as protection gas, is usually argon gas protection gas, in such stove the flowing of argon gas the optical fiber drawn under stove can be caused very
It is big to influence, the diameter of optical fiber is particularly, so Most current fiber manufacturing factory selects the quartzy prefabricated stick drawn wire of uniform diameter.
With the aggravation of industry competition, the prefabricated rods with the increasing of undressed diameter deviation are being sought by each optical fiber factory
The advantages of (also known as hair rod) direct wire drawing, hair rod wire drawing is the rear places such as the extension, polishing, pickling of reduction optical wand that can be larger
Cost is managed, but because hair rod outside diameter deviation is big, very big challenge is proposed to drawing process, main problem is that the fluctuation of optical fiber string diameter is big
Problem, technological difficulties are how to ensure that the sealing gland of the furnace roof in prefabricated rod outside diameter excursion is good, this straight for producing
The non-uniform prefabricated rods in footpath, the air seal method used at present is on fiber drawing furnace plus an obturating cup, in obturating cup inner preform week
Frontier fortress's upper gland packing, is then pushed down with sealing cover, to prevent air enters in stove from causing fiber drawing furnace to aoxidize, to ensure that sealing is filled out
Expect that elastic sealing cover cannot be too heavy, but since preform diameter is again very uneven, be easy to be used as in rod withdrawal close
The airtight and watertight padding of envelope and sealing cover lift, and fiber drawing furnace gas leakage, easily causes fiber drawing furnace to aoxidize.
Therefore a kind of new air seal set is needed, can ensures wire drawing in wire drawing and rod withdrawal to avoid because of optical wand variation in diameter
The stabilization of gas stream in the stove, prevents the oxidation of graphite piece in stove, improves fiber strength.
Utility model content
It is poorly sealed to be easy to cause fiber drawing furnace when overcoming reducing optical wand wire drawing existing in the prior art, rod withdrawal, cause to draw
The problem of gas leakage of silk stove, oxidation, the utility model provides a kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing.
In the technical solution of the utility model：A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing, its feature exist
In：Including upper snap ring, ring-shaped graphite felt, additional sealing gland sheath, cooling water intake, lower snap ring, protection gas air inlet, cooling water
Water outlet, the upper snap ring are placed in air sealing device of wiredrawing furnace top and are connected by snap ring epitaxial end with air seal set body, shape
Into groove structure；The air sealing device of wiredrawing furnace upper end annular graphite felt is placed under snap ring, and upper snap ring compresses ring-shaped graphite
Felt, forms upper sealing ring；The additional sealing gland sheath is wrapped in air sealing device of wiredrawing furnace periphery wall；The cooling water intake prolongs
Stretch out outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace lower end；The lower snap ring is installed on air sealing device of wiredrawing furnace
Lower end, is fixed via air sealing device of wiredrawing furnace concave structure, and lower end annular graphite felt is installed on lower snap ring lower end, and lower snap ring compresses
Ring-shaped graphite felt, forms lower sealing ring；The protection gas air inlet is in air sealing device of wiredrawing furnace bottom and furnace gas seal apparatus cavity
Connection；The cooling water outlet extends outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace upper end.
Further, it is placed in air sealing device of wiredrawing furnace as a kind of optional embodiment of the utility model, the upper snap ring
Top is simultaneously connected by snap ring epitaxial end with air seal set body, formed groove structure, upper Snap ring structure can be designed to dished,
One kind in half U-shaped structure, upper snap ring contact the smooth no concave-convex point in surface with ring-shaped graphite felt.
Further, the groove structure cross wall length that the upper snap ring is formed with air sealing device of wiredrawing furnace body is more than or is annular
The 1/2 of graphite felt outboard sidewalls width, groove structure cross wall length are less than ring-shaped graphite felt outboard sidewalls width.
Further, it is located at upper snap ring lower part as the utility model another kind optional embodiment, ring-shaped graphite felt, passes through
Upper snap ring, the groove structure of air seal set body composition with the air sealing device of wiredrawing furnace of reducing optical wand wire drawing contact to form upper sealing
Ring, the smooth no concave-convex point of madial wall that ring-shaped graphite felt is contacted with optical wand, graphite felt is pitch based graphite felt, polyacrylonitrile foundation stone
One kind in black felt, viscose base graphite felt.
Further, the upper sealing ring, the inner wall of the ring-shaped graphite felt in the upper closed-loop of formation are contacted with optical wand outer wall
Formula, forms air-tight state, that is, the upper sealing for forming furnace gas seal apparatus is used for the protective gas of closed furnace air seal set, avoids revealing
And the entrance of air.
Further, it is cavity structure inside the additional sealing gland sheath, it is concaveconvex structure to add in sealing gland sheath side wall, interior
It is not directly contacted between the convex plane of structure of side wall and reducing optical wand wall, distance is reducing light between the convex plane of structure of madial wall and reducing optical wand wall
The 1/8~1/6 of rod cross-sectional diameter.
Further, the concaveconvex structure is inner hollow, sealing structure of the outer surface without through hole, and concaveconvex structure hollow cavity is
Water circulation structure.
Further, the cooling water intake extends outside air sealing device of wiredrawing furnace, under air sealing device of wiredrawing furnace
End, water circulation cooling device are additional sealing gland sheath concave side wall male structure, and wire drawing can be effectively controlled by water circulating cooling
The temperature of furnace gas sealing device, avoids the very fast of ring-shaped graphite felt caused by temperature is excessive in fiber drawing furnace gas sealing mechanism from being lost.
Further, as the utility model another kind optional embodiment, the lower snap ring is installed on fiber drawing furnace sealing gland dress
Lower end is put, a groove structure, the smooth no concave-convex point of groove surface, the insertion of ring-shaped graphite felt are formed with furnace gas seal apparatus body lower face
Form lower sealing ring in groove, the shape of lower snap ring can be dished, half U-shaped, one kind in random shape structure, under described
Snap ring is more than with the groove structure cross wall length that air sealing device of wiredrawing furnace lower face is formed or is that ring-shaped graphite felt outboard sidewalls are wide
The 1/2 of degree, groove structure cross wall length is less than ring-shaped graphite felt outboard sidewalls width.
Further, the lower sealing ring, the inner wall of the ring-shaped graphite felt in the lower sealing ring of formation are contacted with optical wand outer wall
When, air-tight state is formed, that is, forms the lower sealing of air sealing device of wiredrawing furnace, for the protective gas of closed furnace air seal set, keeps away
Exempt to enter air in stove, cause fiber drawing furnace to aoxidize.
Further, the protection gas air inlet is connected in air sealing device of wiredrawing furnace bottom with furnace gas seal apparatus cavity, and attached
The circulating water structure of aerating closure set side wall concaveconvex structure is connectionless, positioned at additional sealing gland sheath side wall concaveconvex structure downside and water
Circulating outlet homonymy, the protection gas are one kind in the gaseous mixture of nitrogen, argon gas or nitrogen and argon gas, are led in drawing process
Enter to protect gas, full of air seal set cavity, avoid the entrance of air.
Further, the air sealing device of wiredrawing furnace of the reducing optical wand wire drawing is applied to the field fiber of reducing optical wand wire drawing.
Compared with prior art, the beneficial effects of the utility model are：
1) there is protection gas air inlet in the air sealing device of wiredrawing furnace bottom of reducing optical wand wire drawing, while additional sealing gland top has admittedly
Determine bayonet and be used for fixed upper snap ring, by upper snap ring stationary annular graphite felt, prevent that graphite felt rises with rod during rod withdrawal, causes stove
Son oxidation.
2) additionally one snap ring of increase is contacted everywhere with fire door in air sealing device of wiredrawing furnace lower part, has had sealing to make under snap ring
Ring-shaped graphite felt, thus can form double seal ring so that optical wand becomes with fiber drawing furnace gas sealing mechanism top graphite felt
When entering stove gas leakage and furnace oxidation will not occur for footpath area.
3) water circle device is equipped with air sealing device of wiredrawing furnace, the temperature of air sealing device of wiredrawing furnace can be reduced in time, is dropped
The loss of the low graphite felt to seal.
Brief description of the drawings
Attached drawing 1 is the air sealing device of wiredrawing furnace schematic cross-section of the reducing optical wand wire drawing of the utility model；
Attached drawing 2 is the air seal set schematic cross-section of the air sealing device of wiredrawing furnace of the reducing optical wand wire drawing of the utility model.
Marked in attached drawing 1 as follows：Upper snap ring 1, lower snap ring 5.
Marked in attached drawing 2 as follows：Upper snap ring 1, ring-shaped graphite felt 2, additional sealing gland sheath 3, cooling water outlet and inlet 4, lower card
Ring 5, optical wand reducing district 6, protection gas air inlet 7.
Embodiment
Below in conjunction with drawings and examples, the utility model is further elaborated.It should be appreciated that this place is retouched
The specific embodiment stated only to explain the utility model, is not used to limit the utility model.
Embodiment 1
As depicted in figs. 1 and 2, a kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing, it is characterised in that：Including upper
Snap ring 1, ring-shaped graphite felt 2, additional sealing gland sheath 3, cooling water outlet and inlet 4, lower snap ring 5, protection gas air inlet 7, cooling water go out
The mouth of a river 8, the upper snap ring are placed in air sealing device of wiredrawing furnace top and are connected by snap ring epitaxial end with air seal set body, are formed
Groove structure；The air sealing device of wiredrawing furnace upper end annular graphite felt is placed under snap ring, and upper snap ring compresses annular graphite felt,
Form upper sealing ring；The additional sealing gland sheath is wrapped in air sealing device of wiredrawing furnace periphery wall；The cooling water intake extension
Go out outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace lower end；The lower snap ring is installed under air sealing device of wiredrawing furnace
End, is fixed, lower end annular graphite felt is installed on lower snap ring lower end, lower snap ring compression ring via air sealing device of wiredrawing furnace concave structure
Shape graphite felt, forms lower sealing ring；The protection gas air inlet connects in air sealing device of wiredrawing furnace bottom and furnace gas seal apparatus cavity
It is logical；The cooling water outlet extends outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace upper end.
Air sealing device of wiredrawing furnace top is placed in for upper snap ring and is connected by snap ring epitaxial end with air seal set body, shape
Into groove structure, upper Snap ring structure is dished, one kind in half U-shaped structure, and upper snap ring contacts surface light with ring-shaped graphite felt
Sliding no concave-convex point, the groove structure cross wall length that upper snap ring is formed with air sealing device of wiredrawing furnace body are more than or in ring-shaped graphite felts
The 1/2 of lateral wall width, groove structure cross wall length are less than ring-shaped graphite felt outboard sidewalls width, snap ring and fiber drawing furnace in design
The groove structure cross wall length and the ratio of ring-shaped graphite felt outboard sidewalls width that air seal set body is formed are based on the strong of graphite felt
Degree and graphite felt seal in gas sealing mechanism, if what the upper snap ring of design was formed with air sealing device of wiredrawing furnace body
Groove structure cross wall length is less than the 1/2 of ring-shaped graphite felt outboard sidewalls width, be easy to cause in drawing process due to optical wand
Gravity itself be easy to cause ring-shaped graphite felt local fracture, influences its service life, if the upper snap ring of design and wire drawing
The groove structure cross wall length that furnace gas seal apparatus body is formed is more than ring-shaped graphite felt outboard sidewalls width, then inside ring-shaped graphite felt
It can not directly be contacted with optical wand, form sealing structure.
In the present embodiment, the groove structure cross wall length that upper snap ring is formed with air sealing device of wiredrawing furnace body is ring-shaped graphite
The 1/2 of felt outboard sidewalls width.
Fiber drawing furnace gas sealing mechanism lower end by with fiber drawing furnace upper port slitless connection, with screw by air sealing device of wiredrawing furnace
Fiber drawing furnace upper port is fixed on, forms integrative-structure, optical wand passes through rod feeder, the directly first ring with air sealing device of wiredrawing furnace
Shape graphite felt inner wall directly contacts, and forms sealing structure, is progressively fed through in fiber drawing furnace and carries out wire drawing.
The utility model belongs to fiber manufacturing installation technical field, more particularly relates to a kind of for reducing optical wand wire drawing
Air sealing device of wiredrawing furnace.
Embodiment 2
As shown in Fig. 2, a kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing, it is characterised in that：Including upper snap ring
1st, ring-shaped graphite felt 2, additional sealing gland sheath 3, cooling water outlet and inlet 4, lower snap ring 5, protection gas air inlet 7, cooling water outlet
8, the upper snap ring is placed in air sealing device of wiredrawing furnace top and is connected by snap ring epitaxial end with air seal set body, forms groove
Structure；The air sealing device of wiredrawing furnace upper end annular graphite felt is placed under snap ring, and upper snap ring compresses annular graphite felt, is formed
Upper sealing ring；The additional sealing gland sheath is wrapped in air sealing device of wiredrawing furnace periphery wall；The cooling water intake extends drawing
Outside silk furnace gas seal apparatus, positioned at air sealing device of wiredrawing furnace lower end；The lower snap ring is installed on air sealing device of wiredrawing furnace lower end, warp
Fixed by air sealing device of wiredrawing furnace concave structure, lower end annular graphite felt is installed on lower snap ring lower end, and lower snap ring compresses annular stone
Black felt, forms lower sealing ring；The protection gas air inlet is connected in air sealing device of wiredrawing furnace bottom with furnace gas seal apparatus cavity；Institute
State cooling water outlet to extend outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace upper end.
Connected for the protection gas air inlet positioned at air sealing device of wiredrawing furnace bottom with furnace gas seal apparatus cavity, with additional gas
The circulating water structure of closure set side wall concaveconvex structure is connectionless, is circulated on the downside of additional sealing gland sheath side wall concaveconvex structure with water
Water outlet homonymy, it is described to protect gas as one kind in the gaseous mixture of nitrogen, argon gas or nitrogen and argon gas, in drawing process constantly
Protection gas is passed through, full of air seal set cavity, avoids the entrance of air.
In this example, select argon gas as protection gas, air sealing device of wiredrawing furnace lower end by with fiber drawing furnace upper port without
Seam docking, is fixed on fiber drawing furnace upper port by air sealing device of wiredrawing furnace with screw, integrative-structure is formed, by constantly from wire drawing
The protection gas blow vent of furnace gas seal apparatus is passed through argon gas, makes to be in argon atmosphere in air sealing device of wiredrawing furnace cavity, and pass through
Ring-shaped graphite felt at upper and lower two contacts to form enclosed system with optical wand, and outside air cannot be introduced into fiber drawing furnace, thus avoid because
Air enters fiber drawing furnace, causes furnace oxidation.
The utility model belongs to fiber manufacturing installation technical field, more particularly relates to a kind of for reducing optical wand wire drawing
Air sealing device of wiredrawing furnace.
The preferred embodiment of the utility model has shown and described in described above, as previously described, it should be understood that this practicality is new
Type is not limited to form disclosed herein, is not to be taken as the exclusion to other embodiment, and available for various other groups
Conjunction, modification and environment, and above-mentioned teaching or the technology of association area can be passed through in utility model contemplated scope described herein
Or knowledge is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, then
All should be in the appended claims for the utility model protection domain.
Claims (10)
- A kind of 1. air sealing device of wiredrawing furnace for reducing optical wand wire drawing, it is characterised in that：Including upper snap ring (1), ring-shaped graphite Felt (2), additional sealing gland sheath (3), cooling water intake (4), lower snap ring (5), protection gas air inlet (7), cooling water outlet (8)；The upper snap ring (1) is placed in air sealing device of wiredrawing furnace top and is connected by snap ring epitaxial end with air seal set body, shape Into groove structure；The air sealing device of wiredrawing furnace upper end annular graphite felt (2) is placed under snap ring (1), and upper snap ring (1) compresses Ring-shaped graphite felt (2), forms upper sealing ring；The additional sealing gland sheath (3) is wrapped in air sealing device of wiredrawing furnace periphery wall；It is described Cooling water intake (4) extends outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace lower end；The lower snap ring (5) Air sealing device of wiredrawing furnace lower end is installed on, is fixed via air sealing device of wiredrawing furnace concave structure, lower end annular graphite felt (2) installation In lower snap ring (5) lower end, lower snap ring (5) compresses annular graphite felt (2), forms lower sealing ring；It is described protection gas air inlet (7) in Air sealing device of wiredrawing furnace bottom is connected with furnace gas seal apparatus cavity；The cooling water outlet (8) extends fiber drawing furnace sealing gland dress Outside is put, positioned at air sealing device of wiredrawing furnace upper end.
- A kind of 2. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：Upper card Ring (1) structure is that snap ring contacts the smooth no concave-convex point in surface, institute with ring-shaped graphite felt into one kind in dished, half U-shaped structure Snap ring (1) is stated to be placed in air sealing device of wiredrawing furnace top and be connected with air sealing device of wiredrawing furnace body by snap ring epitaxial end, shape Into groove structure, the groove structure cross wall length is more than or is the 1/2 of ring-shaped graphite felt (2) outboard sidewalls width, groove knot Structure cross wall length is less than ring-shaped graphite felt outboard sidewalls width.
- A kind of 3. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described Ring-shaped graphite felt (2) is located at upper snap ring (1) lower part, by the air sealing device of wiredrawing furnace top snap ring with reducing optical wand wire drawing with drawing The groove structure of silk furnace gas seal apparatus body composition contacts to form upper sealing ring；The smooth no concave-convex of ring-shaped graphite felt madial wall Point, the graphite felt is pitch based graphite felt, one kind in PAN based graphite felt, viscose base graphite felt.
- A kind of 4. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described It is cavity structure that additional sealing gland sheath (3) is internal, and it is concaveconvex structure to add sealing gland sheath inner chambers structure, the convex plane of structure of madial wall It is not directly contacted between reducing optical wand wall, distance is straight for reducing optical wand cross section between the convex plane of structure of madial wall and reducing optical wand wall The 1/8~1/6 of footpath.
- A kind of 5. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described Cooling water intake (4) extends outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace lower end, water circulation cooling device For concaveconvex structure on the inside of additional sealing gland sheath.
- A kind of 6. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described Lower snap ring (5) is installed on air sealing device of wiredrawing furnace lower end, is fixed via air sealing device of wiredrawing furnace connecting bracket, with fiber drawing furnace sealing gland Device lower face forms a groove structure, the smooth no concave-convex point of groove surface, and ring-shaped graphite felt (2) is embedded in be formed in groove and fixes Lower closed-loop, the shape of lower snap ring (5) is dished, half U-shaped, one kind in random shape structure.
- A kind of 7. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 6, it is characterised in that：It is described Lower snap ring (5) is more than with air sealing device of wiredrawing furnace lower face one groove structure cross wall length of formation or is ring-shaped graphite felt (2) The 1/2 of outboard sidewalls width, groove structure cross wall length are less than ring-shaped graphite felt outboard sidewalls width.
- A kind of 8. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described Protection gas air inlet (7) is connected in air sealing device of wiredrawing furnace bottom and with air sealing device of wiredrawing furnace cavity, the protection gas air inlet Mouth (7) and the circulating water structure of additional sealing gland sheath side wall concaveconvex structure are connectionless, positioned at the concavo-convex knot of additional sealing gland sheath side wall With water circulating outlet homonymy on the downside of structure, the protection gas is nitrogen, argon gas or nitrogen and one kind in argon gas mixed gas.
- A kind of 9. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：It is described Cooling water outlet (8) extends outside air sealing device of wiredrawing furnace, positioned at air sealing device of wiredrawing furnace lower end.
- A kind of 10. air sealing device of wiredrawing furnace for reducing optical wand wire drawing according to claim 1, it is characterised in that：Institute The air sealing device of wiredrawing furnace for stating reducing optical wand wire drawing is applied to the field fiber of reducing optical wand wire drawing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135275.1U CN207276495U (en) | 2017-09-05 | 2017-09-05 | A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135275.1U CN207276495U (en) | 2017-09-05 | 2017-09-05 | A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing |
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| CN207276495U true CN207276495U (en) | 2018-04-27 |
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| CN201721135275.1U Active CN207276495U (en) | 2017-09-05 | 2017-09-05 | A kind of air sealing device of wiredrawing furnace for reducing optical wand wire drawing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108672087A (en) * | 2018-06-25 | 2018-10-19 | 江苏斯德雷特通光光纤有限公司 | Electrostatic precipitator in a kind of prefabricated rods extension process |
| 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 |
| 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 |
| CN110950529A (en) * | 2019-11-07 | 2020-04-03 | 通鼎互联信息股份有限公司 | Elastic air sealing device of wire drawing furnace, air sealing structure and air sealing method |
| WO2020107961A1 (en) * | 2018-11-26 | 2020-06-04 | 南京华信藤仓光通信有限公司 | Sheath cover structure of optical fiber wire drawing furnace |
| 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 |
| CN114014534A (en) * | 2021-12-21 | 2022-02-08 | 江苏亨通光纤科技有限公司 | Optical fiber drawing furnace air sealing method and device adopting three-dimensional graphite felt sealing structure |
| CN114436523A (en) * | 2021-12-27 | 2022-05-06 | 通鼎互联信息股份有限公司 | Process gas inlet control system of optical fiber drawing furnace and application |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672087A (en) * | 2018-06-25 | 2018-10-19 | 江苏斯德雷特通光光纤有限公司 | Electrostatic precipitator in a kind of prefabricated rods extension process |
| CN108672087B (en) * | 2018-06-25 | 2024-02-02 | 江苏斯德雷特光纤科技有限公司 | Electrostatic dust collection device in preform extension process |
| WO2020107961A1 (en) * | 2018-11-26 | 2020-06-04 | 南京华信藤仓光通信有限公司 | Sheath cover structure of optical fiber wire 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 |
| 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 |
| 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 |
| CN110950529A (en) * | 2019-11-07 | 2020-04-03 | 通鼎互联信息股份有限公司 | Elastic air sealing device of wire drawing furnace, air sealing structure and air sealing method |
| CN110950529B (en) * | 2019-11-07 | 2022-05-03 | 通鼎互联信息股份有限公司 | Elastic air sealing device of wire drawing furnace, air sealing structure and air sealing method |
| 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 |
| CN114014534A (en) * | 2021-12-21 | 2022-02-08 | 江苏亨通光纤科技有限公司 | Optical fiber drawing furnace air sealing method and device adopting three-dimensional graphite felt sealing structure |
| CN114014534B (en) * | 2021-12-21 | 2023-08-22 | 江苏亨通光纤科技有限公司 | Optical fiber drawing furnace gas sealing method and device adopting three-dimensional graphite felt sealing structure |
| CN114436523B (en) * | 2021-12-27 | 2023-11-03 | 通鼎互联信息股份有限公司 | Process gas inlet control system of optical fiber drawing furnace and application |
| CN114436523A (en) * | 2021-12-27 | 2022-05-06 | 通鼎互联信息股份有限公司 | Process gas inlet control system of optical fiber drawing furnace and application |
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Address after: No. 219, Beihai West Road, Haimen Street, Haimen District, Nantong City, Jiangsu Province 226199 Patentee after: Jiangsu Sterlite Tongguang Fiber Co.,Ltd. Address before: 226100 219 Beihai West Road, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU STERLITE TONGGUANG FIBER Co.,Ltd. |
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