CN205223003U - Optical fiber wire drawing is air inlet unit for stove - Google Patents
Optical fiber wire drawing is air inlet unit for stove Download PDFInfo
- Publication number
- CN205223003U CN205223003U CN201521072545.XU CN201521072545U CN205223003U CN 205223003 U CN205223003 U CN 205223003U CN 201521072545 U CN201521072545 U CN 201521072545U CN 205223003 U CN205223003 U CN 205223003U
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- graphite
- fire door
- air inlet
- graphite annulus
- annulus
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Abstract
The utility model relates to an optical fiber wire drawing is air inlet unit for stove, including supporting baseplate, metal admit air set, graphite annulus and graphite fire door clamping ring, be equipped with a boss on the supporting baseplate inner circle lateral wall, the metal admits air set lateral wall and all around evenly is equipped with a plurality of inlet ports, and the metal admits air set setting on the supporting baseplate, characterized in that evenly is equipped with a plurality of support rib at the upper surface of graphite annulus, the setting is laid on the boss that props the bottom plate inner circle to the graphite annulus, and graphite fire door clamping ring is laid the setting and on the support rib of graphite annulus, is formed a plurality of cavitys of ventilating between graphite annulus and the graphite fire door clamping ring, sets up big chamfer in order to form the gas transmission cavity in the outer fringe of graphite annulus and graphite fire door clamping ring, and the cavity of ventilating communicates with each other with the gas transmission cavity, and inlet port and gas transmission cavity communicate with each other. The utility model has the advantages of enable in the stable inflow wire drawing stove of protective gas.
Description
Technical field
The utility model relates to a kind of diffuser, particularly relates to a kind of fibre drawing furnace diffuser.
Background technology
The process of fiber manufacturing quartzy prefabricated rods is put into smelting furnace to be heated to quartzy softening, thin silica fiber (i.e. optical fiber) is pulled out from furnace bottom, smelting furnace all uses heating graphite element, need to arrange diffuser at the crossing of fibre drawing furnace in stove, pass into shielding gas (being generally argon gas), existing fibre drawing furnace diffuser comprises support baseboard, metal air inlet disk, graphite annulus and graphite fire door pressure ring, support baseboard inner ring sidewall is provided with one first boss, metal air inlet disk sidewall surrounding is evenly provided with some air inlet ports, metal air inlet disk inner ring sidewall is provided with one second boss, metal air inlet disk is arranged on support baseboard, graphite annulus lay be arranged on support base plate inner ring the first boss on, graphite fire door pressure ring lay be arranged on metal air inlet disk inner ring the second boss on, between graphite annulus and graphite fire door pressure ring formed one ventilation cavity, fibre drawing furnace diffuser is arranged on the upper stove place of fibre drawing furnace by support baseboard, because fibre drawing furnace in use can experience cooling, the different steps of intensification or high temperature, metal air inlet disk, graphite annulus and graphite fire door pressure ring have different thermal expansions, thus cause the ventilation cavity size between graphite annulus and graphite fire door pressure ring to change, the cross section of fluid channel importing shielding gas in fiber drawing furnace is amassed change, result causes the shielding gas entered in fiber drawing furnace to produce flow instabilities, can make a big impact to the diameter of the optical fiber of the production in stove like this, thus affect the quality of optical fiber production.
Summary of the invention
For above-mentioned shortcoming, the purpose of this utility model is to provide the fibre drawing furnace diffuser in a kind of inflow fiber drawing furnace that shielding gas can be made stable.
Technology contents of the present utility model is: a kind of fibre drawing furnace diffuser, comprises support baseboard, metal air inlet disk, graphite annulus and graphite fire door pressure ring; Support baseboard inner ring sidewall is provided with a boss, and metal air inlet disk sidewall surrounding is evenly provided with some air inlet ports, and metal air inlet disk is arranged on support baseboard; It is characterized by and be evenly provided with several supporting ribs at the upper surface of graphite annulus; Graphite annulus lay be arranged on support base plate inner ring boss on, graphite fire door pressure ring is laid and is arranged on the supporting rib of graphite annulus, some ventilation cavitys are formed between graphite annulus and graphite fire door pressure ring, in the outer rim of graphite annulus and graphite fire door pressure ring, large chamfering is set to form gas transmission chamber, ventilation cavity communicates with gas transmission chamber, and air inlet port communicates with gas transmission chamber.
The utility model is compared with prior art advantageously: the utility model is by the supporting rib of graphite annulus, make the air gap forming some ventilation cavitys between graphite annulus and graphite fire door pressure ring reliably constant, and then in the inflow fiber drawing furnace making shielding gas energy stable; Simultaneously by arranging large chamfering to form gas transmission chamber in the outer rim of graphite annulus and graphite fire door pressure ring, being input in some ventilation cavitys of shielding gas energy homogeneous constant can be made.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of graphite annulus in the utility model.
Fig. 3 is that the utility model uses schematic diagram in fiber drawing furnace.
Embodiment
As depicted in figs. 1 and 2, a kind of fibre drawing furnace diffuser, comprises support baseboard 1, metal air inlet disk 2, graphite annulus 3 and graphite fire door pressure ring 4; Support baseboard 1 inner ring sidewall is provided with a boss 1.1, and metal air inlet disk 2 sidewall surrounding is evenly provided with some air inlet ports 2.1, and metal air inlet disk 2 is arranged on support baseboard 1; It is characterized by and be evenly provided with several supporting ribs 3.1 at the upper surface of graphite annulus 3; Graphite annulus 3 lay be arranged on support base plate 1 inner ring boss 1.1 on, graphite fire door pressure ring 4 is laid and is arranged on the supporting rib 3.1 of graphite annulus 3, some ventilation cavitys 5 are formed between graphite annulus 3 and graphite fire door pressure ring 4, in the outer rim of graphite annulus 3 and graphite fire door pressure ring 4, large chamfering is set to form gas transmission chamber 6, ventilation cavity 5 communicates with gas transmission chamber 6, and air inlet port 2.1 communicates with gas transmission chamber 6.
As shown in Figure 3, to be of the present utility modelly arranged on the body of heater 7 of fire door on fiber drawing furnace by support baseboard 1.
Claims (1)
1. a fibre drawing furnace diffuser, comprises support baseboard, metal air inlet disk, graphite annulus and graphite fire door pressure ring; Support baseboard inner ring sidewall is provided with a boss, and metal air inlet disk sidewall surrounding is evenly provided with some air inlet ports, and metal air inlet disk is arranged on support baseboard; It is characterized by and be evenly provided with several supporting ribs at the upper surface of graphite annulus; Graphite annulus lay be arranged on support base plate inner ring boss on, graphite fire door pressure ring is laid and is arranged on the supporting rib of graphite annulus, some ventilation cavitys are formed between graphite annulus and graphite fire door pressure ring, in the outer rim of graphite annulus and graphite fire door pressure ring, large chamfering is set to form gas transmission chamber, ventilation cavity communicates with gas transmission chamber, and air inlet port communicates with gas transmission chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072545.XU CN205223003U (en) | 2015-12-22 | 2015-12-22 | Optical fiber wire drawing is air inlet unit for stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072545.XU CN205223003U (en) | 2015-12-22 | 2015-12-22 | Optical fiber wire drawing is air inlet unit for stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205223003U true CN205223003U (en) | 2016-05-11 |
Family
ID=55898080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521072545.XU Active CN205223003U (en) | 2015-12-22 | 2015-12-22 | Optical fiber wire drawing is air inlet unit for stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205223003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186663A (en) * | 2016-08-29 | 2016-12-07 | 中天科技光纤有限公司 | A kind of novel optical fiber fiber drawing furnace |
-
2015
- 2015-12-22 CN CN201521072545.XU patent/CN205223003U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186663A (en) * | 2016-08-29 | 2016-12-07 | 中天科技光纤有限公司 | A kind of novel optical fiber fiber drawing furnace |
| WO2018040575A1 (en) * | 2016-08-29 | 2018-03-08 | 中天科技光纤有限公司 | Optical fibre drawing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |