阅读说明：本技术 一种光纤拉丝用冷却装置 (Cooling device for optical fiber drawing ) 是由 郭俊滔 于 2021-08-18 设计创作，主要内容包括：本发明涉及光纤拉丝设备技术领域,且公开了种光纤拉丝用冷却装置,包括塔体,所述塔体的内壁由上而下连续设有由吹气件和吸气件组成的冷却单元,且每个单元中,吸气件设于吹气件的上游,所述吹气件、吸气件分别连接有出气通道和吸气通道。该光纤拉丝用冷却装置,通入冷却气体后,气体在腔内反复的滚动,大大增加了气体的作用时长,减少了冷却气体的用量,特别适用于价值较高的氦气,只需要较少量的气体,即能实现冷却要求,其次,气体在吹气件和吸气件组成的冷却单元不停的做小循环,气体在循环中始终保持较低的温度,其次,由于增加了流速,可以直接破坏光纤周围的边界层,使气体均匀的混合,更进一步增强冷却能力。(The invention relates to the technical field of optical fiber drawing equipment, and discloses a cooling device for optical fiber drawing, which comprises a tower body, wherein cooling units consisting of an air blowing part and an air suction part are continuously arranged on the inner wall of the tower body from top to bottom, in each unit, the air suction part is arranged at the upstream of the air blowing part, and the air blowing part and the air suction part are respectively connected with an air outlet channel and an air suction channel. This cooling device for optical fiber wire drawing, after letting in cooling gas, the roll of gas relapse in the intracavity, greatly increased gaseous effect is long, cooling gas's quantity has been reduced, the higher helium of specially adapted value, only need less gas, can realize the cooling requirement, secondly, the gaseous little circulation of doing that does that the cooling unit that blows the piece and inhales the piece and constitute is ceaseless, gas keeps lower temperature throughout in the circulation, secondly, because the velocity of flow has been increased, can directly destroy the boundary layer around the optic fibre, make gaseous even mixture, further strengthen the cooling capacity.)

1. A cooling device for optical fiber drawing comprises a tower body (1), and is characterized in that: the inner wall of tower body (1) is equipped with the cooling unit who comprises blowing piece (2) and inspiration piece (3) from top to bottom in succession, and in every unit, the upper reaches of blowing piece (2) are located in inspiration piece (3), blowing piece (2), inspiration piece (3) are connected with air outlet channel (4) and inspiration channel (5) respectively, blowing piece (2), inspiration piece (3), air outlet channel (4) and inspiration channel (5) constitute a gas cooling circulation circuit, be equipped with water-cooling chamber (6) in tower body (1), water-cooling chamber (6) cools off for its near air outlet channel (4) and inspiration channel (5), gas cooling circulation circuit is equipped with driving piece (7).

2. The cooling device for drawing an optical fiber according to claim 1, wherein: suction channel (5) and outlet channel (4) are for locating the cavity in tower body (1), driving piece (7) are the circulating pump, driving piece (7) are located between outlet channel (4) and suction channel (5), water-cooling chamber (6) are located between outlet channel (4) and suction channel (5).

3. The cooling device for drawing an optical fiber according to claim 2, wherein: the inner wall of the blowing piece (2) is in a circular truncated cone shape, the inner wall of the air suction piece (3) is in a cylindrical shape, and the air outlet channel (4) is tangent to the connecting port of the blowing piece (2) and the inner wall of the air outlet channel.

4. The cooling device for drawing an optical fiber according to claim 1, wherein: the utility model discloses a tower body, including blowing piece (2) and inspiration piece (3), blowing piece (2) is the gasbag, and blows and to the inner wall indent of piece (2), it is outstanding to the inner chamber to inhale piece (3), the top of blowing piece (2) and inspiration piece (3) is equipped with the magnetite, driving piece (7) are the electro-magnet of locating tower body (1) lateral wall, all be equipped with the check valve on blowing piece (2) and inspiration piece (3) and blowing piece (2) and the inhaling between piece (3).

5. The cooling device for drawing an optical fiber according to claim 1, wherein: the air outlet channel (4) and the air suction channel (5) form a spiral pipe, and the spiral pipe is positioned in the inner cavity of the water cooling cavity (6).

Technical Field

The invention relates to the technical field of optical fiber drawing equipment, in particular to a cooling device for optical fiber drawing.

Background

When an optical fiber is manufactured, firstly, an optical fiber preform is melted, a certain tension is maintained for drawing, after drawing, the optical fiber is wound up through a cooling device, a coating device and a solidifying device to form a semi-finished optical fiber, after the optical fiber leaves a drawing furnace, the temperature is high, and in order to ensure the coating and solidifying effects, the optical fiber needs to be cooled when the optical fiber leaves the drawing furnace.

Along with the increase of the length of a single wire drawing and the improvement of the wire drawing speed, the cooling capacity of the existing wire drawing tower is higher, the existing cooling device generally adopts the introduction of cooling gas and water cooling to realize cooling, the introduced gas is generally helium, hydrogen or nitrogen, but the application cost of the helium is higher, the danger of the hydrogen is higher, the requirements on factory buildings and management are higher, the specific heat of the nitrogen is lower, the heat dissipation effect is poorer, and the comprehensive consideration is not a cooling device which is perfect.

Secondly, because the height of the drawing tower is higher, the temperature of the cooling gas passing through the drawing tower is greatly increased during cooling, and although water cooling is used for controlling the temperature of the gas during cooling, the temperature of the gas is still increased, particularly, a boundary layer is formed near the optical fiber, fresh cold air is isolated, and the cooling effect is further reduced.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the cooling device for optical fiber drawing, which has the advantages of small cooling gas consumption, good cooling effect and the like and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a cooling device for optical fiber wire drawing, includes the tower body, the inner wall of tower body is equipped with the cooling unit who comprises blowing spare and inspiratory piece from top to bottom in succession, and in every unit, the upper reaches of blowing spare is located to the inspiratory piece, blowing spare, inspiratory piece are connected with air outlet channel and inspiratory channel respectively, blowing spare, inspiratory piece, air outlet channel and inspiratory channel constitute a gas-cooled circulation circuit, be equipped with the water-cooling chamber in the tower body, the water-cooling chamber cools off for its near air outlet channel and inspiratory channel, gas-cooled circulation circuit is equipped with the driving piece.

Preferably, the air suction channel and the air outlet channel are cavities arranged in the tower body, the driving piece is a circulating pump, the driving piece is arranged between the air outlet channel and the air suction channel, and the water cooling cavity is arranged between the air outlet channel and the air suction channel.

Preferably, the inner wall of the blowing piece is in a circular truncated cone shape, the inner wall of the air suction piece is in a cylindrical shape, and the air outlet channel is tangent to the connecting port of the blowing piece and the inner wall of the air outlet channel.

Preferably, the piece of blowing and the piece of breathing in are the gasbag, and the piece of blowing is to the inner wall indent, the piece of breathing in is outstanding to the inner chamber, the top of the piece of blowing and the piece of breathing in is equipped with the magnetite, the driving piece is for locating the electro-magnet of tower body lateral wall, all be equipped with the check valve on the piece of blowing and the piece of breathing in and between the piece of blowing and the piece of breathing in.

Preferably, the air outlet channel and the air suction channel form a spiral pipe, and the spiral pipe is positioned in the inner cavity of the water cooling cavity.

The invention has the following beneficial effects:

1. this cooling device for optical fiber wire drawing, after letting in cooling gas, gas is at the roll that the intracavity is repeated, and greatly increased gaseous effect is long, has reduced cooling gas's quantity, and the higher helium of specially adapted value only needs a small amount of gas, can realize the cooling requirement.

2. This cooling device for optical fiber wire drawing, the gaseous little circulation of doing that blows the cooling unit that a and inhale the gas component and constitute, gaseous remain lower temperature throughout in the circulation to, the flow through a position in unit time also increases substantially, has strengthened the cooling effect, secondly, owing to increased the velocity of flow, can directly destroy the boundary layer around the optic fibre, makes the even mixture of gaseous, further strengthens the cooling capacity.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a top view of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;

FIG. 4 is a top view of FIG. 3 of the present invention.

In the figure: 1. a tower body; 2. an air blowing member; 3. a suction member; 4. an air outlet channel; 5. an air suction passage; 6. a water-cooled cavity; 7. a light sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-2, a cooling device for optical fiber drawing comprises a tower body 1, cooling gas is injected into an inner cavity of the tower body 1, cooling units consisting of an air blowing part 2 and an air suction part 3 are continuously arranged on the inner wall of the tower body 1 from top to bottom, in each unit, the air suction part 3 is arranged at the upstream of the air blowing part 2, the air blowing part 2 and the air suction part 3 are respectively connected with an air outlet channel 4 and an air suction channel 5, the air blowing part 2, the air suction part 3, the air outlet channel 4 and the air suction channel 5 form an air cooling circulation loop, namely, the cooling gas is sucked by the air suction part 3, flows back to the inner cavity of the tower body 1 through the air suction channel 5 and the air outlet channel 4 and then flows back to the inner cavity of the tower body 1 through the air suction part 3 to cool an optical fiber, a water cooling cavity 6 is arranged in the tower body 1, the water cooling cavity 6 cools the air outlet channel 4 and the air suction channel 5 nearby air cavity to reduce the temperature, a driving part 7 is arranged in the air cooling circulation loop, the driving piece 7 drives the gas to flow, and circulation is ensured to occur.

Wherein, the air suction channel 5 and the air outlet channel 4 are cavities arranged in the tower body 1, the driving piece 7 is a circulating pump, the driving piece 7 works intermittently, the driving piece 7 is arranged between the air outlet channel 4 and the air suction channel 5, high pressure is formed in the air outlet channel 4 under the action of the driving piece 7, low pressure is formed in the air suction channel 5, then gas is injected back through the air blowing piece 2, the gas is absorbed through the air suction piece 3, the cooling gas adopts helium, the helium is repeatedly pumped away and injected back through the air blowing piece 2, the action time of the helium is increased, the water cooling cavity 6 is arranged between the air outlet channel 4 and the air suction channel 5, and the inner walls of the air outlet channel 4 and the air suction channel 5 are provided with heat exchange fins, so that the helium is better cooled in the air outlet channel 4 and the air suction channel 5, the cooling effect is ensured, and meanwhile, when the helium is pumped away and injected back, a boundary layer near the optical fiber is damaged, further enhancing the cooling effect.

Wherein, the inner wall of the piece 2 of blowing is the round platform shape, and the inner wall of the piece 3 of breathing in is the cylindricality, and the connector of air outlet channel 4 and the piece 2 of blowing is tangent rather than the inner wall, and the formation whirl that gets into in the piece 2 of blowing to along with its upward speed increases gradually, the middle part forms the negative pressure, makes the inside gas intensive mixing of the piece 2 of blowing, improves the cooling effect.

Example two

The difference from the first embodiment is that, referring to fig. 3 and 4, the blowing component 2 and the suction component 3 are both air bags, the blowing component 2 is recessed towards the inner wall, the suction component 3 protrudes towards the inner cavity, the top of the blowing component 2 and the top of the suction component 3 are provided with magnets, the driving component 7 is an electromagnet arranged on the side wall of the tower body 1, the electromagnet drives the magnets, further the blowing component 2 and the suction component 3 are driven to compress and relax, the blowing component 2 and the suction component 3 are formed in an opposite manner, that is, when the blowing component 2 is compressed, the suction component 3 relaxes, the blowing component 2, the suction component 3 and the space between the blowing component 2 and the suction component 3 are provided with one-way valves, the blowing component 2 discharges air in a one-way manner, the suction component 3 sucks air in a one-way manner, and meanwhile, the air flows from the suction component 3 to the blowing component 2 in a one-way manner, compared with the first embodiment, the path of air flow is short, and can participate in cooling more quickly, and the strength of air flow is increased.

Wherein, air outlet channel 4 and air suction channel 5 constitute a spiral pipe, and the spiral pipe is located the inner chamber of water-cooling chamber 6, and the spiral pipe that air outlet channel 4 and air suction channel 5 constitute is equipped with the multiunit, reinforcing gas cooling effect.

The working principle and the working process of the invention are as follows:

example one

The cooling liquid is injected into the inner cavity of the tower body 1, the water cooling device is communicated with the water cooling device, when the cooling device is used for cooling, the air suction part 3 sucks cooling air inside the gap, meanwhile, the air suction part 3 injects the cooling air back into the inner cavity of the air blowing part 2 in the gap mode, and when the air flows in the air outlet channel 4 and the air suction channel 5, the air is cooled by the water cooling device 6.

Example two

The driving piece 7 is connected with an alternating current point, so that the air blowing piece 2 and the air suction piece 3 are in continuous relaxation and contraction, the air suction piece 3 sucks air, then the air blowing piece 2 injects the air into the cavity of the tower body 1, and when cooling air works in the inner cavity, the air blowing piece 2 and the air suction piece 3 repeatedly roll, so that the working time of the air in the cavity is greatly prolonged, and meanwhile, the temperature of the air participating in cooling is more suitable after cooling.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.