CN118812156A - Ultra-low temperature cooling device and method for insensitive optical fiber drawing tower - Google Patents
Ultra-low temperature cooling device and method for insensitive optical fiber drawing tower Download PDFInfo
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- CN118812156A CN118812156A CN202411289662.5A CN202411289662A CN118812156A CN 118812156 A CN118812156 A CN 118812156A CN 202411289662 A CN202411289662 A CN 202411289662A CN 118812156 A CN118812156 A CN 118812156A
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- 238000001816 cooling Methods 0.000 title claims abstract description 215
- 239000013307 optical fiber Substances 0.000 title claims abstract description 80
- 238000012681 fiber drawing Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000000835 fiber Substances 0.000 claims description 12
- 238000009960 carding Methods 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 206010044048 Tooth missing Diseases 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses an ultra-low temperature cooling device and method of an insensitive optical fiber drawing tower, which relates to the technical field of cooling devices, and comprises a pre-cooling cylinder and an ice maker, wherein the outer wall of the pre-cooling cylinder is fixedly provided with a pre-cooling box, the top surface of the pre-cooling box is provided with an ice adding component, the ice conveying pipe is fixedly connected to one end of the top surface of the pre-cooling box, the ice homogenizing component is arranged in the pre-cooling box, the heat insulation sleeve is fixedly arranged on the outer wall of the pre-cooling box, the cooling box is arranged below the pre-cooling sleeve, the optical fiber wires are movably arranged in the cooling box, and the cooling component is arranged in the cooling box. The ultralow temperature cooling device and method for the insensitive optical fiber drawing tower have the technical effects that the prepared optical fiber wire is subjected to precooling treatment, the temperature of the optical fiber wire before ultralow temperature cooling is effectively reduced, the ultralow temperature cooling time is shortened, the consumption of liquid nitrogen is reduced, and the use cost is further reduced.
Description
Technical Field
The invention relates to the technical field of cooling devices, in particular to an ultra-low temperature cooling device and method for an insensitive optical fiber drawing tower.
Background
In the production process of optical fibers, a molded optical fiber is usually obtained after a series of process flows such as heating, coating and solidifying an optical fiber preform, each step of optical fiber production needs to be closely matched, the appearance of an optical fiber drawing tower meets the requirement, and an ultralow-temperature cooling device is needed to cool the optical fiber after the optical fiber is manufactured by the optical fiber drawing tower.
The existing optical fiber is directly conveyed into an ultralow temperature cooling device for cooling after being manufactured by a drawing tower, the temperature of the optical fiber just manufactured is higher, the ultralow temperature cooling device is directly utilized for cooling, the cooling time is increased, the cooling efficiency is affected, the consumption of liquid nitrogen is increased, and the use cost is higher.
Disclosure of Invention
The invention discloses an ultralow temperature cooling device and an ultralow temperature cooling method for an insensitive optical fiber drawing tower, and aims to solve the technical problems that the temperature of an optical fiber just manufactured is high, the cooling time is increased by directly utilizing the ultralow temperature cooling device to cool the optical fiber, the cooling efficiency is affected, the consumption of liquid nitrogen is increased, and the use cost is high.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an insensitive optical fiber drawing tower ultra-low temperature cooling device, includes precooling barrel and ice maker, the inside activity of precooling barrel is provided with many optical fiber silk, and the outer wall fixed mounting of precooling barrel has the precooling box, the top surface of precooling box is provided with the subassembly that adds ice, it includes the ice conveying pipe to add the ice subassembly, the top surface one end at the precooling box is connected to the ice conveying pipe fixed, the inside of precooling box is provided with even ice subassembly, and the outer wall fixed mounting of precooling box has the heat preservation sleeve, the below of precooling barrel is provided with the cooling box, the optical fiber silk activity sets up in the inside of cooling box, the inside of cooling box is provided with cooling module.
Through being provided with precooling cylinder, fiber, precooling box, add the ice subassembly, even ice subassembly, heat preservation sleeve, cooling box and cooling module, the ice-cube is carried to the inside of precooling box through adding the ice subassembly, utilize the air conditioning that the ice-cube produced to carry out precooling treatment to the fiber, effectively reduced the temperature before the fiber carries out the ultralow temperature cooling, the time of ultralow temperature cooling has been shortened, the consumption of liquid nitrogen has been reduced, and then reduced use cost, make the even multilayer of ice-cube lay in the inside of precooling box through even ice subassembly, improve the cooling effect of many fiber, carry out the ultralow temperature cooling to the fiber in the cooling box through cooling module.
In a preferred scheme, the top surface of one end of the ice conveying pipe far away from the pre-cooling box is provided with an opening, the opening of the ice conveying pipe is arranged below an ice outlet of the ice maker, both sides of the top surface of one end of the ice conveying pipe far away from the pre-cooling box are fixedly connected with guide plates, the bottom surface of the ice conveying pipe is fixedly connected with a mounting bracket, the outer wall of the mounting bracket is fixedly provided with a driving motor, a power output shaft of the driving motor is connected with a first gear through a coupling in a transmission manner, the surface of the first gear is meshed with a synchronous belt, and one end of the synchronous belt far away from the first gear is meshed with a second gear; the outer wall of one side of the second gear is fixedly connected with a tooth-missing gear, the surface of the tooth-missing gear is meshed with a rack, the outer wall of one side of the rack, which is close to the ice conveying pipe, is fixedly connected with a conveying pushing plate, the conveying pushing plate is slidably arranged on the inner wall of the ice conveying pipe, the bottom surface of one end, which is far away from the conveying pushing plate, of the rack is fixedly connected with a fixing plate, the outer wall of one side, which is close to the conveying pushing plate, of the fixing plate, is fixedly connected with a spring, one end, which is far away from the fixing plate, of the fixing plate is fixedly connected with a guide rod, the outer wall of one side, which is close to the fixing plate, of the fixing support is fixedly connected with a guide rod, the spring is sleeved on the surface of the guide rod, and the guide rod is slidably arranged in the fixing plate; the ice homogenizing component comprises an electric telescopic rod, the electric telescopic rod is fixedly connected to one end, far away from the ice conveying pipe, of the top surface of the pre-cooling box, the output end of the electric telescopic rod is fixedly connected with a lifting frame, the lifting frame rotates and is arranged on the outer wall of the pre-cooling cylinder in a sliding manner, an annular electric guide rail is fixedly arranged on the bottom surface of the lifting frame, and a sliding seat is arranged on the surface of the annular electric guide rail in a sliding manner; the bottom surface fixed mounting of slide has the carding frame, and the inside fixed mounting of carding frame has the roating seat, and the inside rotation of roating seat is provided with the rotary rod, and the middle part rotation of rotary rod sets up in the roating seat, and the equal fixedly connected with rotary vane in both ends about the outer wall of rotary rod.
Through being provided with ice subassembly and even ice subassembly, the ice-cube that ice-making machine made falls on the ice conveying pipe, starts driving motor and makes and carries the push pedal and promote the ice-cube removal, with the inside of ice-cube pushing to the precooling box, the air conditioning that utilizes the ice-cube to produce reduces the temperature in the precooling box, realizes the precooling treatment to the fiber optic silk then, carding frame and rotary vane contact with the ice-cube, and the cooperation is adjusted electric telescopic handle, makes the ice-cube evenly lay with the precooling incasement, improves the precooling effect to the fiber optic silk.
In a preferred scheme, a plurality of drain holes are formed in the bottom surface of the pre-cooling box, a water return assembly is arranged on the outer side of the pre-cooling box and comprises a water return box, the water return box is fixedly arranged on the bottom surface of the pre-cooling box, a drain pipe is fixedly arranged at a water outlet of the water return box, a first shunt pipe is fixedly connected to one end of the drain pipe, which is far away from the water return box, and a shunt coil is fixedly arranged at one end of the first shunt pipe, which is far away from the drain pipe; the top surface fixedly connected with shunt tubes II of shunt tubes, shunt tubes II fixed mounting is in the inside of precooling box, and the top surface fixedly connected with of shunt tubes II converges the coil pipe, and fixedly connected with outlet pipe in the delivery port of converging the coil pipe, heat preservation telescopic outer wall fixedly mounted has the water pump, and the one end fixedly connected with at the input of water pump of converging the coil pipe is kept away from to the outlet pipe, and the output fixedly connected with wet return of water pump, the wet return is kept away from in the water filling port of the one end fixedly connected with ice machine of water pump.
Through being provided with the return water subassembly, the water that produces after the ice-cube melts is discharged through the wash port and is entered into the return water tank, starts the water pump and makes water back flow to in the ice maker again, realizes water cyclic utilization, improves the utilization efficiency of water resource.
In a preferred scheme, the cooling assembly comprises a liquid nitrogen inlet pipe, the liquid nitrogen inlet pipe is fixedly connected to the outer wall of the cooling box, one end of the liquid nitrogen inlet pipe is fixedly connected with a cooling pipe, the cooling pipe is arranged in the cooling box in an S-shaped mode, the outer wall of the cooling box is fixedly connected with a liquid nitrogen outlet pipe, one end of the cooling pipe, which is far away from the liquid nitrogen inlet pipe, is fixedly connected to a first circulating pipe, one end of the liquid nitrogen outlet pipe, which is far away from the cooling box, is fixedly connected with a circulating pump through a bracket, the first circulating pipe is fixedly arranged at the input end of the circulating pump, the output end of the circulating pump is fixedly provided with a liquid nitrogen cooling machine box, one end, which is far away from the circulating pump, of the second circulating pipe is fixedly connected to the second circulating pipe; the inside fixed mounting of cooling tank has the filter, and the filter sets up in the outside of optic fibre silk, and the outside of filter is provided with the heat conduction gasket, and the heat conduction gasket sets up in the inboard of cooling tube.
Through being provided with cooling module, reduce the temperature in the cooling box through the liquid nitrogen in the cooling tube, cold air current and fiber yarn contact realize the ultra-low temperature cooling to fiber yarn, start circulating pump and make the liquid nitrogen flow back to in the cooling tube after cooling, realize the circulation of liquid nitrogen.
An ultra-low temperature cooling method of a non-sensitive optical fiber drawing tower, which uses the ultra-low temperature cooling device of the non-sensitive optical fiber drawing tower, comprises the following steps:
Step one, optical fiber wires move along the inside of a pre-cooling cylinder and a cooling box, ice cubes made by an ice maker fall into an ice conveying pipe, a driving motor is started, and the ice cubes are conveyed into the pre-cooling box through a conveying push plate;
step two, in the process of conveying ice cubes, the sliding seat slides along the surface of the annular electric guide rail, the carding frame and the rotary blades uniformly lay the ice cubes, and the electric telescopic rods are matched and regulated, so that the ice cubes are uniformly laid to be multi-layer, and the pre-cooling treatment of the optical fiber is realized;
And thirdly, ultralow-temperature cooling is carried out on the inside of the cooling box through the cooling pipe, cold air flow is guided to one side of the optical fiber through the heat conducting gasket, circulation of liquid nitrogen is realized by starting the circulating pump, and ultralow-temperature cooling of the optical fiber is realized.
As can be seen from the above, the ultra-low temperature cooling device for the insensitive optical fiber drawing tower provided by the invention has the technical effects of pre-cooling the manufactured optical fiber, effectively reducing the temperature of the optical fiber before ultra-low temperature cooling, shortening the time of ultra-low temperature cooling, reducing the consumption of liquid nitrogen and further reducing the use cost.
Drawings
Fig. 1 is a schematic diagram of the whole structure of an ultra-low temperature cooling device of a insensitive optical fiber drawing tower.
Fig. 2 is a side view of the whole structure of an ultra-low temperature cooling device of a insensitive optical fiber drawing tower.
Fig. 3 is a side structural sectional view of a heat preservation sleeve of an ultra-low temperature cooling device of a insensitive optical fiber drawing tower.
Fig. 4 is an enlarged view of the structure a in fig. 3 of an ultra-low temperature cooling device of a insensitive optical fiber drawing tower according to the present invention.
Fig. 5 is a side view of the structure of the ice homogenizing component of the ultra-low temperature cooling device of the insensitive optical fiber drawing tower.
Fig. 6 is a side view of the structure of the backwater assembly of the ultra-low temperature cooling device of the insensitive optical fiber drawing tower.
Fig. 7 is a side sectional view of a cooling assembly of an ultra-low temperature cooling device of a insensitive optical fiber drawing tower.
In the figure: 1. a pre-cooling cylinder; 2. an optical fiber; 3. a pre-cooling tank; 4. an ice adding assembly; 401. an ice conveying pipe; 402. a deflector; 403. a mounting bracket; 404. a driving motor; 405. a first gear; 406. a synchronous belt; 407. a second gear; 408. a tooth-missing gear; 409. a rack; 410. conveying a push plate; 411. a fixing plate; 412. a spring; 413. a guide rod; 5. an ice homogenizing component; 501. an electric telescopic rod; 502. a lifting frame; 503. an annular electric guide rail; 504. a slide; 505. a carding frame; 506. a rotating seat; 507. a rotating rod; 508. rotating the leaves; 6. a backwater assembly; 601. a water return tank; 602. a drain pipe; 603. a shunt tube I; 604. a shunt coil; 605. a shunt tube II; 606. a converging coil; 607. a water outlet pipe; 608. a water pump; 609. a water return pipe; 7. a thermal insulation sleeve; 8. a cooling box; 9. a cooling assembly; 901. a liquid nitrogen inlet pipe; 902. a cooling tube; 903. a liquid nitrogen outlet pipe; 904. a circulating pipe I; 905. a circulation pump; 906. a circulation pipe II; 907. a filter plate; 908. a thermally conductive gasket; 909. the liquid nitrogen cools the cabinet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The ultra-low temperature cooling device of the insensitive optical fiber drawing tower disclosed by the invention is mainly applied to the scene that the temperature of an optical fiber just after manufacturing is higher, the cooling time is increased by directly using the ultra-low temperature cooling device to cool, the cooling efficiency is affected, the consumption of liquid nitrogen is increased, and the use cost is higher.
Referring to fig. 1-7, an ultra-low temperature cooling device of a insensitive optical fiber drawing tower comprises a pre-cooling cylinder 1 and an ice maker, wherein a plurality of optical fiber wires 2 are movably arranged in the pre-cooling cylinder 1, a pre-cooling box 3 is fixedly arranged on the outer wall of the pre-cooling cylinder 1, an ice adding component 4 is arranged on the top surface of the pre-cooling box 3, the ice adding component 4 comprises an ice conveying pipe 401, the ice conveying pipe 401 is fixedly connected to one end of the top surface of the pre-cooling box 3, an ice homogenizing component 5 is arranged in the pre-cooling box 3, a heat preservation sleeve 7 is fixedly arranged on the outer wall of the pre-cooling box 3, a cooling box 8 is arranged below the pre-cooling cylinder 1, the optical fiber wires 2 are movably arranged in the cooling box 8, and a cooling component 9 is arranged in the cooling box 8.
Specifically, the optical fiber wires 2 move along the inside of the pre-cooling cylinder 1 and the cooling box 8, the ice maker makes ice cubes, the ice cubes are conveyed to the inside of the pre-cooling box 3 through the ice adding assembly 4, the optical fiber wires 2 are pre-cooled by utilizing cold air generated by the ice cubes, the temperature of the optical fiber wires 2 before ultralow temperature cooling is effectively reduced, the ultralow temperature cooling time is shortened, the consumption of liquid nitrogen is reduced, the use cost is further reduced, when the ice cubes are added, the ice cubes are uniformly and multiply paved in the inside of the pre-cooling box 3 through the ice homogenizing assembly 5, the cooling effect of the optical fiber wires 2 is improved, the optical fiber wires 2 move along the inside of the cooling box 8 after the pre-cooling treatment, and the optical fiber wires 2 in the cooling box 8 are subjected to ultralow temperature cooling through the cooling assembly 9.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, in a preferred embodiment, the top surface of one end of the ice conveying pipe 401 far away from the pre-cooling box 3 is arranged in an open manner, the opening of the ice conveying pipe 401 is arranged below the ice outlet of the ice maker, both sides of the top surface of one end of the ice conveying pipe 401 far away from the pre-cooling box 3 are fixedly connected with guide plates 402, the bottom surface of the ice conveying pipe 401 is fixedly connected with a mounting bracket 403, the outer wall of the mounting bracket 403 is fixedly provided with a driving motor 404, the power output shaft of the driving motor 404 is connected with a first gear 405 through a coupling in a transmission manner, a synchronous belt 406 is meshed on the surface of the first gear 405, and a second gear 407 is meshed on one end of the synchronous belt 406 far away from the first gear 405; the outer wall of one side of the gear II 407 is fixedly connected with a tooth-missing gear 408, the surface of the tooth-missing gear 408 is meshed with a rack 409, the outer wall of one side of the rack 409, which is close to the ice conveying pipe 401, is fixedly connected with a conveying push plate 410, the conveying push plate 410 is slidably arranged on the inner wall of the ice conveying pipe 401, the bottom surface of one end, which is far away from the conveying push plate 410, of the rack 409 is fixedly connected with a fixed plate 411, the outer wall of one side, which is close to the conveying push plate 410, of the fixed plate 411 is fixedly connected with a spring 412, one end, which is far away from the fixed plate 411, of the fixed plate 403 is fixedly connected with a guide rod 413, one side, which is close to the fixed plate 411, of the fixed plate 403 is fixedly connected with a guide rod 413, the spring 412 is sleeved on the surface of the guide rod 413, and the guide rod 413 is slidably arranged in the fixed plate 411; the ice homogenizing component 5 comprises an electric telescopic rod 501, wherein the electric telescopic rod 501 is fixedly connected to one end, far away from the ice conveying pipe 401, of the top surface of the pre-cooling box 3, the output end of the electric telescopic rod 501 is fixedly connected with a lifting frame 502, the lifting frame 502 rotates and is arranged on the outer wall of the pre-cooling cylinder 1 in a sliding manner, an annular electric guide rail 503 is fixedly arranged on the bottom surface of the lifting frame 502, and a sliding seat 504 is arranged on the surface of the annular electric guide rail 503 in a sliding manner; the bottom surface fixed mounting of slide 504 has a comb frame 505, and the inside fixed mounting of comb frame 505 has roating seat 506, and the inside rotation of roating seat 506 is provided with rotary rod 507, and the middle part rotation of rotary rod 507 sets up in roating seat 506, and both ends are all fixedly connected with rotary blade 508 about the outer wall of rotary rod 507.
Specifically, when ice cubes are added, ice cubes made by the ice maker fall on the ice conveying pipe 401, the driving motor 404 is started to enable the first gear 405 to rotate, the synchronous belt 406 is meshed with the first gear 405 and the second gear 407 at the same time, the second gear 407 drives the gear with the missing teeth 408 to rotate, the gear with missing teeth 408 is meshed with the rack 409, the conveying pushing plate 410 is driven to push the ice cubes to move when the rack 409 moves, the ice cubes are pushed to the inside of the pre-cooling box 3, after the teeth on the gear with missing teeth 408 are separated from the rack 409, the spring 412 is reset and stretched, the conveying pushing plate 410 returns to the initial position, the effect of circularly adding the ice cubes is achieved, the temperature in the pre-cooling box 3 is reduced by cold air generated by the ice cubes, then pre-cooling treatment of the optical fiber filaments 2 is achieved, when the ice cubes are added, the sliding seat 504 slides along the surface of the annular electric guide rail 503, the carding frame 505 and the rotary blade 508 slide in the pre-cooling box 3 and contact with the ice cubes, the electric telescopic rod 501 is shrunk and adjusted after rotating for one circle, the ice cubes are evenly paved in the pre-cooling box 3, and the pre-cooling effect of the optical fiber filaments 2 is improved.
Referring to fig. 1,2, 3 and 6, in a preferred embodiment, a plurality of drain holes are formed in the bottom surface of the pre-cooling tank 3, a water return assembly 6 is arranged on the outer side of the pre-cooling tank 3, the water return assembly 6 comprises a water return tank 601, the water return tank 601 is fixedly installed on the bottom surface of the pre-cooling tank 3, a drain pipe 602 is fixedly installed at a water outlet of the water return tank 601, a shunt pipe one 603 is fixedly connected to one end of the drain pipe 602 away from the water return tank 601, and a shunt coil 604 is fixedly installed at one end of the shunt pipe one 603 away from the drain pipe 602; the top surface fixedly connected with shunt tubes second 605 of shunt tubes 604, shunt tubes second 605 fixed mounting is in the inside of precooling box 3, and the top surface fixedly connected with converging coil 606 of shunt tubes second 605, fixedly connected with outlet pipe 607 in the delivery port of converging coil 606, the outer wall fixed mounting of heat preservation sleeve 7 has water pump 608, the one end fixed connection that the outlet pipe 607 kept away from converging coil 606 is in the input of water pump 608, the output fixedly connected with wet return 609 of water pump 608, the one end fixed connection that wet return 609 kept away from water pump 608 is in the water filling port of ice machine.
Specifically, after the ice cubes in the optical fiber wires 2 are melted, the generated water is discharged through the drain hole and enters the water return tank 601, the water pump 608 is started, the water in the water return tank 601 sequentially enters the water outlet pipe 607 through the drain pipe 602, the first split pipe 603, the split coil 604, the second split pipe 605 and the converging coil 606, and flows back to the ice maker again through the water return pipe 609 under the action of the water pump 608, so that the water recycling is realized, and the utilization efficiency of water resources is improved.
Referring to fig. 1, 2 and 7, in a preferred embodiment, the cooling assembly 9 includes a liquid inlet pipe 901, the liquid inlet pipe 901 is fixedly connected to an outer wall of the cooling tank 8, one end of the liquid inlet pipe 901 is fixedly connected with a cooling pipe 902, the cooling pipe 902 is arranged in the cooling tank 8 in an S-shape, an outer wall of the cooling tank 8 is fixedly connected with a liquid outlet nitrogen pipe 903, one end of the cooling pipe 902 away from the liquid inlet pipe 901 is fixedly connected to the liquid outlet nitrogen pipe 903, one end of the liquid outlet pipe 903 away from the cooling tank 8 is fixedly connected with a circulating pipe 904, the outer wall of the cooling tank 8 is fixedly provided with a circulating pump 905 through a bracket, the circulating pipe 904 is fixedly arranged at an input end of the circulating pump 905, an output end of the circulating pump 905 is fixedly provided with a liquid nitrogen cooling cabinet 909, one end of the liquid nitrogen cooling cabinet 909 away from the circulating pump 905 is fixedly connected with a circulating pipe two 906, and one end of the two 906 away from the circulating pump 905 is fixedly connected to the two 906; the inside of the cooling box 8 is fixedly provided with a filter plate 907, the filter plate 907 is arranged on the outer side of the optical fiber 2, the outer side of the filter plate 907 is provided with a heat conducting gasket 908, and the heat conducting gasket 908 is arranged on the inner side of the cooling tube 902.
Specifically, after the optical fiber 2 is pre-cooled, the temperature in the cooling box 8 is reduced through the liquid nitrogen in the cooling pipe 902, so that the interior of the cooling box 8 is kept in an ultralow temperature state, the generated cold air flow is guided by the heat-conducting gasket 908 and then contacts with the optical fiber 2 through the cooling pipe 902, ultralow temperature cooling of the optical fiber 2 is realized, the circulating pump 905 is started to enable the liquid nitrogen in the cooling pipe 902 to be discharged through the liquid nitrogen outlet pipe 903 and the circulating pipe 904, and after the liquid nitrogen cooling machine box 909 is cooled, the liquid nitrogen flows back into the cooling pipe 902 again through the circulating pipe 906 and the liquid nitrogen inlet pipe 901, so that the circulation of the liquid nitrogen is realized.
An ultra-low temperature cooling method of a non-sensitive optical fiber drawing tower, which uses the ultra-low temperature cooling device of the non-sensitive optical fiber drawing tower, comprises the following steps:
step one, the optical fiber wires 2 move along the inside of the pre-cooling cylinder 1 and the cooling box 8, ice cubes made by an ice maker fall into the ice conveying pipe 401, a driving motor 404 is started, and the ice cubes are conveyed into the pre-cooling box 3 through the ice conveying pipe 401 by utilizing a conveying push plate 410;
in the process of conveying ice cubes, the sliding seat 504 slides along the surface of the annular electric guide rail 503, the carding frame 505 and the rotary blades 508 uniformly lay the ice cubes, and the electric telescopic rods 501 are matched and regulated to uniformly lay the ice cubes in a multi-layer manner, so that pre-cooling treatment of the optical fiber filaments 2 is realized;
and thirdly, ultralow temperature cooling is carried out on the inside of the cooling box 8 through the cooling pipe 902, cold air flow is guided to the side of the optical fiber filaments 2 through the heat conducting gasket 908, circulation of liquid nitrogen is realized by starting the circulating pump 905, and ultralow temperature cooling of the optical fiber filaments 2 is realized.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an insensitive fiber drawing tower ultra-low temperature cooling device, includes precooling barrel (1) and ice maker, its characterized in that, the inside activity of precooling barrel (1) is provided with many optic fibre silk (2), and the outer wall fixed mounting of precooling barrel (1) has precooling box (3), the top surface of precooling box (3) is provided with and adds ice subassembly (4), add ice subassembly (4) including defeated ice pipe (401), the top surface one end at precooling box (3) of defeated ice pipe (401) fixed connection, the inside of precooling box (3) is provided with even ice subassembly (5), and the outer wall fixed mounting of precooling box (3) has heat preservation sleeve (7), the below of precooling barrel (1) is provided with cooling box (8), optic fibre silk (2) activity sets up in the inside of cooling box (8), the inside of cooling box (8) is provided with cooling module (9).
2. The ultra-low temperature cooling device of the insensitive optical fiber drawing tower according to claim 1, wherein the top surface of one end of the ice conveying pipe (401) far away from the pre-cooling box (3) is an open setting, the open part of the ice conveying pipe (401) is arranged below the ice outlet of the ice maker, both sides of the top surface of one end of the ice conveying pipe (401) far away from the pre-cooling box (3) are fixedly connected with guide plates (402), the bottom surface of the ice conveying pipe (401) is fixedly connected with a mounting bracket (403), the outer wall of the mounting bracket (403) is fixedly provided with a driving motor (404), a power output shaft of the driving motor (404) is connected with a first gear (405) through a coupling, the surface of the first gear (405) is meshed with a synchronous belt (406), and one end of the synchronous belt (406) far away from the first gear (405) is meshed with a second gear (407).
3. The ultra-low temperature cooling device of an insensitive optical fiber drawing tower according to claim 2, wherein a tooth-lacking gear (408) is fixedly connected to the outer wall of one side of the gear II (407), a rack (409) is meshed with the surface of the tooth-lacking gear (408), a conveying pushing plate (410) is fixedly connected to the outer wall of one side of the rack (409) close to the ice conveying pipe (401), the conveying pushing plate (410) is slidably arranged on the inner wall of the ice conveying pipe (401), a fixing plate (411) is fixedly connected to the bottom surface of one end of the rack (409) far away from the conveying pushing plate (410), a spring (412) is fixedly connected to the outer wall of one side of the fixing plate (411), one end of the spring (412) far away from the fixing plate (411) is fixedly connected to the outer wall of the mounting bracket (403), a guide rod (413) is fixedly connected to the outer wall of one side of the mounting bracket (403) close to the fixing plate (411), the spring (412) is sleeved on the surface of the guide rod (413), and the guide rod (413) is slidably arranged in the fixing plate (411).
4. An ultra-low temperature cooling device for an insensitive optical fiber drawing tower according to claim 3, wherein the ice homogenizing component (5) comprises an electric telescopic rod (501), the electric telescopic rod (501) is fixedly connected with one end of the top surface of the pre-cooling box (3) far away from the ice conveying pipe (401), the output end of the electric telescopic rod (501) is fixedly connected with a lifting frame (502), the lifting frame (502) is rotationally and slidingly arranged on the outer wall of the pre-cooling cylinder (1), an annular electric guide rail (503) is fixedly arranged on the bottom surface of the lifting frame (502), and a sliding seat (504) is slidingly arranged on the surface of the annular electric guide rail (503).
5. The ultra-low temperature cooling device for the insensitive optical fiber drawing tower according to claim 4, wherein a carding frame (505) is fixedly installed on the bottom surface of the sliding seat (504), a rotating seat (506) is fixedly installed inside the carding frame (505), a rotating rod (507) is arranged in the rotating seat (506) in a rotating mode in the rotating mode, and rotating blades (508) are fixedly connected to the upper end and the lower end of the outer wall of the rotating rod (507).
6. The ultra-low temperature cooling device of an insensitive optical fiber drawing tower according to claim 5, wherein a plurality of drain holes are formed in the bottom surface of the pre-cooling box (3), a water return component (6) is arranged on the outer side of the pre-cooling box (3), the water return component (6) comprises a water return tank (601), the water return tank (601) is fixedly arranged on the bottom surface of the pre-cooling box (3), a drain pipe (602) is fixedly arranged at a water outlet of the water return tank (601), a shunt pipe I (603) is fixedly connected to one end, far away from the water return tank (601), of the drain pipe (602), and a shunt coil pipe (604) is fixedly arranged at one end, far away from the drain pipe (602), of the shunt pipe I (603).
7. The ultra-low temperature cooling device of an insensitive optical fiber drawing tower according to claim 6, wherein the top surface of the shunt coil (604) is fixedly connected with a shunt tube II (605), the shunt tube II (605) is fixedly installed in the pre-cooling box (3), the top surface of the shunt tube II (605) is fixedly connected with a confluence coil (606), a water outlet pipe (607) is fixedly connected in a water outlet of the confluence coil (606), a water pump (608) is fixedly installed on the outer wall of the heat preservation sleeve (7), one end of the water outlet pipe (607) away from the confluence coil (606) is fixedly connected with an input end of the water pump (608), an output end of the water pump (608) is fixedly connected with a water return pipe (609), and one end of the water return pipe (609) away from the water pump (608) is fixedly connected in a water filling port of an ice making machine.
8. The ultra-low temperature cooling device of an insensitive optical fiber drawing tower according to claim 7, wherein the cooling assembly (9) comprises a liquid inlet pipe (901), the liquid inlet pipe (901) is fixedly connected to the outer wall of the cooling box (8), one end of the liquid inlet pipe (901) is fixedly connected with a cooling pipe (902), the cooling pipe (902) is arranged in the cooling box (8) in an S-shaped mode, the outer wall of the cooling box (8) is fixedly connected with a liquid outlet nitrogen pipe (903), one end of the cooling pipe (902) away from the liquid inlet pipe (901) is fixedly connected to the liquid outlet pipe (903), one end of the liquid outlet pipe (903) away from the cooling box (8) is fixedly connected with a circulating pipe (904), the outer wall of the cooling box (8) is fixedly connected with a circulating pump (905) through a support, the first circulating pipe (904) is fixedly arranged at the input end of the circulating pump (905), the output end of the circulating pump (905) is fixedly provided with a cooling box (909), one end of the liquid nitrogen cooling box (909) away from the circulating pump (905) is fixedly connected with a second circulating pipe (906), and one end of the second circulating pump (905) away from the circulating pump (905) is fixedly connected to the second circulating pipe (906).
9. The ultra-low temperature cooling device of an insensitive optical fiber drawing tower according to claim 8, wherein a filter plate (907) is fixedly installed in the cooling box (8), the filter plate (907) is arranged on the outer side of the optical fiber wire (2), a heat conducting gasket (908) is arranged on the outer side of the filter plate (907), and the heat conducting gasket (908) is arranged on the inner side of the cooling tube (902).
10. A method of ultra-low temperature cooling of a non-sensitive optical fiber drawing tower using a non-sensitive optical fiber drawing tower ultra-low temperature cooling apparatus according to claim 9, comprising the steps of:
Step one, the optical fiber wire (2) moves along the inside of the pre-cooling cylinder (1) and the cooling box (8), ice cubes made by the ice maker fall into the ice conveying pipe (401), the driving motor (404) is started, and the ice cubes are conveyed into the pre-cooling box (3) through the ice conveying pipe (401) by utilizing the conveying push plate (410);
Step two, in the process of conveying ice cubes, the sliding seat (504) slides along the surface of the annular electric guide rail (503), the carding frame (505) and the rotary blades (508) uniformly lay the ice cubes, and the electric telescopic rods (501) are matched and regulated, so that the ice cubes are uniformly laid to be multi-layer, and the pre-cooling treatment of the optical fiber filaments (2) is realized;
And thirdly, ultra-low temperature cooling is carried out on the inside of the cooling box (8) through the cooling pipe (902), cold air flow is guided to one side of the optical fiber wire (2) through the heat conducting gasket (908), and the circulation of liquid nitrogen is realized by starting the circulating pump (905), so that the ultra-low temperature cooling of the optical fiber wire (2) is realized.
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| CN216890658U (en) * | 2022-03-17 | 2022-07-05 | 牛可喜 | Glass fiber wire drawing cooling forming device |
| CN217127284U (en) * | 2021-12-22 | 2022-08-05 | 河北光兴半导体技术有限公司 | Glass fiber cooling device |
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| JPH08259254A (en) * | 1995-03-20 | 1996-10-08 | Sumitomo Electric Ind Ltd | Optical fiber cooling method and device therefor |
| CN1286229A (en) * | 1999-08-25 | 2001-03-07 | 三星电子株式会社 | Multi-line optic fibre drawing apparatus |
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