A duct type spray cooling device for polyamide 6 coarse denier yarn

Abstract

The utility model discloses a duct type spray cooling device for polyamide 6 thick denier filament in the spinning cooling technical field, including duct pipe, spherical joint and cold water pipe, spherical joint inside sets up atomizing joint, and is connected with cold water pipe to spray cooling directly to silk line, and the difference is that the original air cooling is replaced for water cooling with air cooling thought, utilizes cooling water spray, forms water phase change cooling technology, and through cooling mist introduction spinning duct, utilizes the latent heat of vaporization of water, realizes the leap of cooling rate, and the gasification of water mist can take away more heat, and water mist penetrability is strong, can diffuse in whole duct completely, can all adhere and enmeshed type cooling to every silk line, and the cooling capacity is big, and water mist temperature rise can absorb heat, and water mist gasification can take away more heat, reach the characteristics that also can rapid cooling to the relatively thick silk line.

Description

Technical Field

[0001] This utility model relates to the field of spinning cooling technology, and in particular to a channel-type spray cooling device for polyamide 6 coarse denier filaments. Background Technology

[0002] When producing coarse denier polyamide 6 filament, the nascent filament ejected from the spinneret needs to be cooled by side airflow, then pass through a tunnel, oiled by an oil roller, pre-networked, drawn and shaped by hot and cold rollers, to the networker, and finally wound into shape at the winding head. For coarse denier polyamide 6 filament, because the individual fibers are relatively thick and have a large internal heat capacity, the side airflow cooling efficiency has an upper limit. This makes coarse denier filament prone to insufficient cooling and cooling dead zones. Slow heat dissipation can lead to incomplete filament formation in subsequent processes, and the filament is prone to breakage under tension, resulting in many broken ends and poor yarn evenness.

[0003] In particular, low-carbon footprint polyamide 6, after being spun into fibers, requires high toughness and high fiber thickness. The diameter of a single fiber needs to be much larger than that of a fine denier fiber, resulting in higher internal heat content and greater difficulty in cooling. This increases the time required for coagulation and molding, which can easily lead to fiber breakage. However, the ultra-thick fibers spun from low-carbon footprint polyamide 6 have greater wind resistance, making it impossible to use a larger air volume for blowing and cooling, resulting in poor air-cooling effect.

[0004] Based on this, the present invention designs a channel-type spray cooling device for polyamide 6 coarse denier filaments to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a channel-type spray cooling device for polyamide 6 coarse denier filaments. It replaces the air-cooling approach with water-cooling, utilizing cooling water spray to achieve water phase change cooling technology. The cooling mist is introduced into the spinning channel, utilizing the latent heat of vaporization of water to achieve a significant increase in cooling rate. Furthermore, the vaporization of the water mist can remove more heat, and the water mist has strong penetrability, completely filling the entire channel. It can adhere to and encapsulate each filament for cooling, resulting in a large cooling effect. The water mist can absorb heat upon heating, and its vaporization can remove even more heat, achieving the characteristic of rapid cooling even for thicker filaments.

[0006] This invention is achieved as follows: a channel-type spray cooling device for polyamide 6 coarse denier filaments, comprising: Channel pipes, ball joints, and cold water pipes; The tunnel is a square tube with openings at both the top and bottom. Heat dissipation vents are horizontally opened on the left and right side walls of the tunnel, and the heat dissipation vents penetrate the side walls of the tunnel. Below each of the heat dissipation vents, a baffle is horizontally arranged, and the baffle is located on the inner wall of the channel pipe. Each baffle is a flat plate with its upper end tilted inward. The ball joint is a universal joint, and multiple ball joints are installed on the side wall of the tunnel pipe. Each ball joint is fixedly and rotatably embedded in the side wall of the tunnel pipe. The spherical connector includes a steering ball, a quick-connect connector, and an atomizing nozzle. The quick-connect connector, steering ball, and atomizing nozzle are connected sequentially from the outside to the inside to form an integral connector. The atomizing nozzle extends into the inside of the channel tube, and the quick-connect connector extends out of the outside of the channel tube. The inside of the quick-connect connector, steering ball, and atomizing nozzle is an integral cavity. The steering ball is rotatably mounted on the side wall of the channel tube. The cold water pipe is a condensate water supply pipe, and multiple branch pipes are connected to the cold water pipe. Each quick-connect fitting can be separably and sealedly inserted into one branch pipe.

[0007] Furthermore, the heat dissipation vent is a horizontally opened square opening, the horizontal width of the heat dissipation vent is the same as the width of the spoiler, and the height of the heat dissipation vent is within the coverage area of ​​the spoiler; Multiple heat dissipation vents are opened on the left and right side walls of the tunnel pipe, and the heat dissipation vents on the left and right sides are symmetrically arranged.

[0008] Furthermore, the connecting pipe is a flexible hose.

[0009] Furthermore, the lower opening edge of the tunnel pipe is also surrounded by a wind guide, and the wind guide is an annular air intake that is thicker at the top and thinner at the bottom.

[0010] Furthermore, the ball joint also includes a clamping nut and a locking ball sleeve; The clamping nut is a nut, which is horizontally and fixedly installed on the side wall of the tunnel pipe, and the clamping nut penetrates the inner and outer sides of the tunnel pipe; The diameter of the hole of the clamping nut is larger than the diameter of the steering ball. The steering ball is located inside the clamping nut. The inner end face of the clamping nut is also provided with a circular retaining ring. The retaining ring and the clamping nut are integral structures. The inner diameter of the retaining ring is smaller than the diameter of the steering ball. The inner surface of the retaining ring is spherical. The retaining ring and the steering ball can rotate and fit tightly together. The atomizing nozzle extends into the tunnel tube through the retaining ring; The locking ball sleeve is a screw with a spherical inner end face. The locking ball sleeve is locked to the outer opening of the locking nut by threads. The inner end face of the locking ball sleeve is also in close contact with the rotating ball. The clamping nut and the positioning ball sleeve are assembled to form an internal spherical cavity, and the steering ball is rotatably clamped in the spherical cavity of the clamping nut and the positioning ball sleeve; A connecting pipe hole is provided at the center of the outer end face of the snap-fit ​​nut, and the quick-connect connector extends out of the connecting pipe hole.

[0011] The beneficial effects of this utility model are: 1. This utility model changes air cooling to water cooling, so the device requires less air force. Water mist is different from wind blowing. Water mist will not generate strong airflow. Wind cooling requires high-speed airflow to remove heat more quickly. Therefore, the water mist cooling of this device significantly improves the situation of the yarn blowing and scattering. 2. This device sprays water mist from cooling water. The temperature of the cooling water can be lower than that of the air, and the cooling water pipeline is more convenient to transport. At the same time, the water-cooled spray can not only absorb the heat of the yarn by heating the water mist, but the water mist will also vaporize and absorb more heat again, which can cool the yarn more efficiently. Compared with air cooling, it forms a water phase change cooling technology. By filling the entire spinning channel with cooling mist, the latent heat of vaporization of water is used to achieve a leap in cooling rate, and the cooling range far exceeds the upper limit of air cooling. 3. The spherical joint of this device can rotate, thereby adjusting the spray direction of the water mist. This allows for more flexible adjustment of the spray angle for different filament distributions, ensuring that the filaments on both sides and in the center are covered by water mist, resulting in better cooling of the filaments. At the same time, the added baffle reduces the interference of airflow on the filaments, and allows the water mist that cannot be vaporized to adhere to and condense on the baffle, flowing down along the baffle to the side wall of the channel tube. The baffle not only blocks the direct airflow but also prevents the formation of large water droplets inside the channel tube, resulting in better atomization. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a top view of the internal structure of the tunnel pipe of this utility model; Figure 3 This is a schematic diagram of a single spherical joint structure of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the spherical joint of this utility model; Figure 5 This is a schematic diagram showing the positional relationship between the heat dissipation vent and the baffle plate on the side wall of the channel pipe of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1-Drainage pipe, 11-Air guide, 12-Break plate, 13-Heat dissipation vent, 2-Spherical joint, 21-Steering ball, 22-Snap-fit ​​nut, 221-Retaining ring, 23-Positioning ball sleeve, 231-Connecting pipe hole, 24-Quick-connector, 25-Atomizing nozzle, 3-Cold water pipe, 31-Branch connecting pipe. Detailed Implementation

[0015] Please see Figures 1 to 5 As shown, this utility model provides a channel-type spray cooling device for polyamide 6 coarse denier filaments. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0016] In a specific embodiment of the technical solution of this utility model: Includes tunnel pipe 1, ball joint 2, and cold water pipe 3; The tunnel pipe 1 is a square tube with openings at both the top and bottom. Heat dissipation vents 13 are horizontally opened on the left and right side walls of the tunnel pipe 1, and the heat dissipation vents 13 penetrate the side walls of the tunnel pipe 1. Below each heat dissipation vent 13, a baffle 12 is horizontally arranged, and the heat dissipation vent is directly opposite the baffle 12. The baffle 12 is located on the inner wall of the channel pipe 1, and each baffle 12 is a flat plate with the upper end tilted inward. The heat dissipation vent 13 is a horizontally opened square opening. The horizontal width of the heat dissipation vent 13 is the same as the width of the baffle 12. The upper and lower edges of the heat dissipation vent 13 are within the height range of the upper and lower sides of the baffle 12. That is, each heat dissipation vent 13 is within the coverage area of ​​the baffle 12 above it, ensuring that the airflow is blocked by the baffle 12 and the effective airflow blows directly onto the wire. Multiple heat dissipation vents 13 are opened on the left and right side walls of the channel pipe 1, and the heat dissipation vents 13 on the left and right sides are symmetrically arranged, so that the wire travel path is sprayed with cooling on both sides to ensure good cooling effect.

[0017] The lower opening edge of the tunnel pipe 1 is also surrounded by a wind deflector 11, which is an annular air duct that is thicker at the top and thinner at the bottom. The baffle plate 12 can serve as a condensation plate for larger water mist particles, thereby keeping the water mist inside the tunnel pipe 1 fine. After the water droplets condense on the baffle plate 12, they will flow downward along the inner wall of the tunnel pipe 1 and flow out downward. The wind deflector 11 reduces the range of hot air entering the tunnel pipe 1 after spraying the water mist downward. The wind deflector 11 can also collect water from the inner wall of the tunnel pipe 1 and guide the flow, collecting and draining the condensed water.

[0018] The ball joint 2 is a universal joint. Multiple ball joints 2 are installed on the side wall of the tunnel pipe 1. Each ball joint 2 is fixedly and rotatably embedded in the side wall of the tunnel pipe 1. The ball joint 2 includes a steering ball 21, a quick-connect joint 24, and an atomizing nozzle 25. The quick-connect joint 24, the steering ball 21, and the atomizing nozzle 25 are connected in sequence from the outside to the inside to form an integral joint. The atomizing nozzle 25 extends into the inside of the channel tube 1, and the quick-connect joint 24 extends out of the outside of the channel tube 1. The inside of the quick-connect joint 24, the steering ball 21, and the atomizing nozzle 25 is an integral cavity. The steering ball 21 is rotatably mounted on the side wall of the channel tube 1. The ball joint 2 also includes a clamping nut 22 and a locking ball sleeve 23; The clamping nut 22 is a nut, and the clamping nut 22 is a nut. The clamping nut 22 is horizontally fixed on the side wall of the tunnel pipe 1, and the clamping nut 22 penetrates the inner and outer sides of the tunnel pipe 1. In this way, the locking ball sleeve 23 is located outside the tunnel pipe 1, which makes it convenient to adjust and lock the steering ball 21 outside the tunnel pipe 1, without the need to install and adjust the steering ball 21 inside the tunnel pipe 1.

[0019] The diameter of the hole in the clamping nut 22 is larger than the diameter of the steering ball 21. The steering ball 21 is located inside the clamping nut 22. A circular retaining ring 221 is also provided on the inner end face of the clamping nut 22. The retaining ring 221 and the clamping nut 22 are integral structures. The inner diameter of the retaining ring 221 is smaller than the diameter of the steering ball 21. The inner surface of the retaining ring 221 is spherical. The retaining ring 221 and the steering ball 21 can rotate and fit tightly together. Through the cooperation of the retaining ring 221 and the locking ball sleeve 23, the steering ball 21 is restricted and clamped, allowing the steering ball 21 to rotate inside the clamping nut 22. It can also be locked by the clamping of the retaining ring 221 and the locking ball sleeve 23, making adjustment convenient.

[0020] The atomizing nozzle 25 extends into the interior of the channel tube 1 through the retaining ring 221; The locking ball sleeve 23 is a screw with a spherical inner end face. The locking ball sleeve 23 is locked to the outer opening of the locking nut 22 by threads. The inner end face of the locking ball sleeve 23 is also in close contact with the rotating ball 21. The clamping nut 22 and the positioning ball sleeve 23 are assembled to form an internal spherical cavity. The steering ball 21 is rotatably clamped in the spherical cavity of the clamping nut 22 and the positioning ball sleeve 23. The steering ball 21 can rotate and adjust in this spherical cavity, and can also be clamped by the clamping nut 22 and the positioning ball sleeve 23 to lock the steering ball 21, which makes it easy to lock the spray direction.

[0021] A connector hole 231 is provided at the center of the outer end face of the snap-fit ​​nut 22, and the quick-connect connector 24 extends out of the connector hole 231.

[0022] With the spherical connector 2, rotating the quick-connect connector 24 or the branch connector 31 can drive the steering ball 21 to rotate and adjust the spray angle. The steering ball 21 will also rotate and adjust, and the atomizing nozzle 25 will be adjusted to different angles for spraying.

[0023] The cold water pipe 3 is the water supply pipe for condensate. Multiple branch pipes 31 are connected to the cold water pipe 3. The branch pipes 31 can be PVC or metal hoses. They are adjusted by rotating the ball joint 2. Each quick-connect fitting 24 can be separably and sealed to one branch pipe 31. Each atomizing nozzle 25 is connected to one branch pipe 31 through the quick-connect fitting 24, so that the cooling water of the cold water pipe 3 can be connected to the atomizing nozzle 25, thereby spraying cooling mist into the channel pipe 1.

[0024] It should be noted that: This device is particularly suitable for coarse denier yarns. Coarse denier yarns have a large diameter and contain a lot of heat. Air cooling can only cool the surface of the yarn, while water mist can diffuse and adhere to the yarn. The water mist can also quickly vaporize and directly carry away the high temperature inside the yarn. The effect of water mist is more lasting and has stronger adhesion than air cooling, resulting in a significantly better cooling effect on the yarn. This cooling method can exceed the cooling limit of air cooling.

[0025] When using this invention, according to the path of the thread, hold the branch pipe 31 and rotate the steering ball 21 so that the atomizing nozzle 25 of each steering ball 21 on both sides is aligned with the thread and the mist covers all the threads.

[0026] The atomizing nozzle 25 is an ultrasonic atomizing nozzle, which instantly forms water mist particles of 1-5 microns, making the water mist finer, with better contact and envelopment, and faster vaporization, thus resulting in a better cooling effect on the yarn.

[0027] Water vapor can escape outwards through the heat dissipation vent 13, and if external air blows, the cold air will not blow directly onto the wire, ensuring the stability of the wire.

[0028] The inside and outside of this device refer to the inside and outside directions of the channel pipe 1. The inside of the ball joint 2 refers to the inside of the cavity formed by the clamping nut 22 and the clamping ball sleeve 23, and the outside is the outside of the cavity. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0029] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A channel-type spray cooling device for polyamide 6 coarse denier filaments, characterized in that, include: Channel pipe (1), ball joint (2) and cold water pipe (3); The tunnel pipe (1) is a square pipe with openings at both the top and bottom. Heat dissipation vents (13) are horizontally opened on the left and right side walls of the tunnel pipe (1), and the heat dissipation vents (13) penetrate the side walls of the tunnel pipe (1). A baffle plate (12) is horizontally arranged below each of the heat dissipation ports (13), and the baffle plate (12) is arranged on the inner wall of the channel pipe (1). Each baffle plate (12) is a flat plate with its upper end tilted inward. The ball joint (2) is a universal joint. Multiple ball joints (2) are installed on the side wall of the tunnel pipe (1). Each ball joint (2) is fixedly and rotatably embedded in the side wall of the tunnel pipe (1). The spherical connector (2) includes a steering ball (21), a quick-connect connector (24), and an atomizing nozzle (25). The quick-connect connector (24), steering ball (21), and atomizing nozzle (25) are connected in sequence from the outside to the inside to form an integral connector. The atomizing nozzle (25) extends into the inside of the tunnel pipe (1), and the quick-connect connector (24) extends out of the outside of the tunnel pipe (1). The inside of the quick-connect connector (24), steering ball (21), and atomizing nozzle (25) is an integral cavity. The steering ball (21) is rotatably mounted on the side wall of the tunnel pipe (1). The cold water pipe (3) is a water supply pipe for condensate. Multiple branch pipes (31) are connected to the cold water pipe (3). Each quick-connect fitting (24) can be separably and sealedly connected to a branch pipe (31).

2. The channel-type spray cooling device for polyamide 6 coarse denier filaments according to claim 1, characterized in that: The heat dissipation vent (13) is a horizontally opened square opening. The horizontal width of the heat dissipation vent (13) is the same as the width of the spoiler (12). The height of the heat dissipation vent (13) is within the coverage area of ​​the spoiler (12). Multiple heat dissipation vents (13) are opened on the left and right side walls of the tunnel pipe (1), and the heat dissipation vents (13) on the left and right sides are symmetrically arranged.

3. The channel-type spray cooling device for polyamide 6 coarse denier filaments according to claim 1, characterized in that: The branch connector (31) is a flexible hose.

4. The channel-type spray cooling device for polyamide 6 coarse denier filament according to claim 1, characterized in that: The lower opening edge of the tunnel pipe (1) is also surrounded by a wind guide (11), and the wind guide (11) is an annular air duct that is thicker at the top and thinner at the bottom.

5. A channel-type spray cooling device for polyamide 6 coarse denier filaments according to claim 1, characterized in that: The ball joint (2) also includes a clamping nut (22) and a locking ball sleeve (23). The clamping nut (22) is a nut, which is horizontally fixed on the side wall of the tunnel pipe (1) and penetrates the inner and outer sides of the tunnel pipe (1); The diameter of the hole of the clamping nut (22) is larger than the diameter of the steering ball (21). The steering ball (21) is located inside the clamping nut (22). The inner end face of the clamping nut (22) is also provided with a circular retaining ring (221). The retaining ring (221) and the clamping nut (22) are integral structures. The inner diameter of the retaining ring (221) is smaller than the diameter of the steering ball (21). The inner surface of the retaining ring (221) is spherical. The retaining ring (221) and the steering ball (21) can rotate and fit tightly together. The atomizing nozzle (25) extends into the interior of the channel tube (1) through the retaining ring (221); The locking ball sleeve (23) is a screw with a spherical inner end face. The locking ball sleeve (23) is locked to the outer opening of the locking nut (22) by threads. The inner end face of the locking ball sleeve (23) is also tightly fitted to the steering ball (21) so that it can rotate. The clamping nut (22) and the positioning ball sleeve (23) are assembled to form an internal spherical cavity, and the steering ball (21) is rotatably clamped in the spherical cavity of the clamping nut (22) and the positioning ball sleeve (23); A connecting hole (231) is provided at the center of the outer end face of the snap-fit ​​nut (22), and the quick-connect connector (24) extends out of the connecting hole (231).

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