Rapid cooling device for polyester staple fiber production

Abstract

The utility model discloses a quick cooling device for polyester staple fiber production, which comprises a box body, an air supply pipe, an air inlet header pipe, a communicating pipe and a circulating pipeline, one end of the air supply pipe is fixedly communicated with the lower part of one side of the box body, and the other end of the air supply pipe is fixedly communicated with the air inlet header pipe; one end of each circulating pipeline is fixedly communicated with the upper portion of one side of the box body, the other end of each circulating pipeline is fixedly communicated with the corresponding air supply pipe, the positions and the number of the circulating pipelines correspond to those of the air supply pipes, and the communicating pipes are arranged at the adjacent positions of the outer sides of the circulating pipelines and communicated with each other. And a circulating fan groove is fixedly formed in the circulating pipeline and located above the communicating pipe. Through the combination of air cooling and water cooling, cold air specifically flows and cooling liquid circularly absorbs heat through circulating air, the cooling efficiency is greatly improved, the cooling time is shortened, the efficient production requirement is met, hot air recycling is achieved through the circulating fan, energy consumption is reduced, cost is saved, and economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a rapid cooling device for the production of polyester staple fiber. Background Technique

[0002] In the production process of polyester staple fiber, the cooling link is crucial. With the rapid development of the chemical fiber industry, the market demand for polyester staple fiber is increasing continuously, and higher requirements are also put forward for its quality and production efficiency.

[0003] There are many limitations in the traditional cooling methods of polyester staple fiber. For example, some simple air-cooling devices have poor cooling effects and are difficult to quickly cool down polyester staple fiber, resulting in an extended production cycle and unable to meet the needs of large-scale production; while the simple water-cooling method can improve the cooling speed to a certain extent, but due to uneven water flow distribution or insufficient contact, it is easy to cause uneven cooling and affect the stability of product quality.

[0004] In addition, during the operation of the existing cooling devices, the energy consumption is often high. A large amount of energy consumption not only increases the production cost but also does not conform to the current development trend of energy conservation and environmental protection.

[0005] Therefore, we propose a rapid cooling device for the production of polyester staple fiber. Content of the Utility Model

[0006] The main purpose of the utility model is to provide a rapid cooling device for the production of polyester staple fiber, in order to prevent the cooling link from becoming a bottleneck restricting the production of polyester staple fiber, thereby improving the production quality and efficiency of polyester staple fiber, reducing costs and energy consumption, and effectively solving the problems in the background technique.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A rapid cooling device for the production of polyester staple fiber, including a box body, an air supply pipe, an intake main pipe, a connecting pipe and a circulating pipeline. One end of the air supply pipe is fixedly communicated with the lower part of one side of the box body, the other end of the air supply pipe is fixedly communicated with an intake main pipe, one end of the circulating pipeline is fixedly communicated with the upper part of one side of the box body, the other end of the circulating pipeline is fixedly communicated with the air supply pipe, the circulating pipeline and the air supply pipe are corresponding in position and quantity, the connecting pipe is arranged between adjacent positions outside the circulating pipeline and is communicated with each other, a circulating fan is fixedly arranged inside the circulating pipeline and above the connecting pipe, and two groups of oppositely arranged air supply inclined plates are fixedly installed on the inner walls of the top and bottom of the box body, and uniformly distributed inclined air grooves are opened on the air supply inclined plates;

[0009] Two relatively parallel strip-shaped through slots are provided in the upper parts of both sides of the box body. A plurality of fixed shafts are fixedly connected to the inner walls of both sides of the box body. A second liquid inlet and a second liquid outlet are respectively provided in the lower parts on the outer sides of the fixed shafts. A liquid flow cavity is provided inside the fixed shafts. A column body is rotatably connected to the outside of the fixed shafts through bearings. Two sealing rings are provided inside both ends of the column body and between adjacent bearings. A cooling cavity is provided inside the column body. A heat-conducting arc-shaped plate is fixedly installed on the outside of the column body. A plurality of uniformly distributed heat-conducting rods are fixedly installed on the inner side of the heat-conducting arc-shaped plate. The other ends of the heat-conducting rods extend into the cooling cavity. A first liquid inlet and a first liquid outlet are respectively provided in the upper and lower parts on the outer side of the fixed shaft and inside the cooling cavity.

[0010] A plurality of horizontally arranged and uniformly distributed exhaust fans are fixedly installed in the middle of one side of the box body. A water tank and a plurality of uniformly distributed circulation pumps are fixedly installed on the inner wall of the bottom end of the box body. The suction end of the circulation pump is fixedly connected to a first water pipe. The end of the first water pipe far from the circulation pump is fixedly installed on one side of the water tank and is communicated with the inside of the water tank. The discharge end of the circulation pump is fixedly connected to a second water pipe. A plurality of water inlet pipes are fixedly installed on one side of the second water pipe. The ends of the water inlet pipes far from the second water pipe respectively extend into the corresponding second liquid inlets. A second return water pipe is communicated in the second liquid outlet. The end of the second return water pipe far from the second liquid outlet is fixedly connected to a first return water pipe. The bottom end of the first return water pipe is fixedly installed on the top of the water tank and is communicated with the inside of the water tank.

[0011] By adopting the above technical solution, cold air enters the air supply pipe through the intake main pipe and then is sent into the box body. The inclined air grooves uniformly distributed on the air supply inclined plates at the top and bottom ends in the box body enable the cold air to flow in the box body in a specific direction and angle, thereby preliminarily air-cooling and cooling the polyester staple fiber; at the same time, the exhaust fans work to accelerate the air circulation in the box body and improve the air-cooling effect.

[0012] During the cooling process, the polyester staple fiber contacts the heat-conducting arc-shaped plate. The heat-conducting rods on the inner side of the heat-conducting arc-shaped plate transfer heat to the cooling cavity. The coolant in the water tank, under the action of the circulation pump, enters the liquid flow cavity of the fixed shaft through the first water pipe, the second water pipe and the water inlet pipe through the second liquid inlet, then enters the cooling cavity through the first liquid inlet, absorbs heat and flows out through the first liquid outlet, and then returns to the water tank through the second liquid outlet, the second return water pipe and the first return water pipe, forming a cycle of the coolant to realize the water-cooling and cooling of the polyester staple fiber.

[0013] The circulation fan in the circulation pipeline works to send the hot air in the upper part of the box body back to the air supply pipe through the circulation pipeline and mix it with the newly entered cold air, thereby improving the cooling efficiency and reducing the energy consumption. Thus, through the combination of air-cooling and water-cooling and by using the method of circulating air, the rapid cooling of the polyester staple fiber is realized.

[0014] Further, the second liquid inlet is communicated with the cooling chamber and the first liquid inlet through a liquid flow chamber, and the cooling chamber is communicated with the first liquid outlet and the second liquid outlet through the liquid flow chamber.

[0015] By adopting the above technical solution, the coolant in the water tank, under the action of the circulation pump, first enters the second liquid inlet of the fixed shaft through the first water pipe, the second water pipe and the water inlet pipe. Since the second liquid inlet is communicated with the cooling chamber and the first liquid inlet through the liquid flow chamber, the coolant will enter the cooling chamber. After absorbing heat in the cooling chamber, the coolant will flow to the second liquid outlet through the first liquid outlet and the liquid flow chamber. Then, the coolant returns to the water tank from the second liquid outlet through the second return water pipe and the first return water pipe, completing a circulating flow process of the coolant, thereby realizing the water cooling of the polyester staple fiber.

[0016] Further, the column is a horizontally arranged cylindrical structure, and there are four groups of heat-conducting arc-shaped plates arranged in a circular array with the center of the column as the center. There is polyester staple fiber between two adjacent columns, and both ends of the polyester staple fiber pass through the strip-shaped through slots and extend to the outside.

[0017] By adopting the above technical solution, since the column is a horizontally arranged cylindrical structure and there are four groups of heat-conducting arc-shaped plates arranged in a circular array with the center of the column as the center, when the polyester staple fiber is placed between two adjacent columns, the polyester staple fiber can be in full contact with the heat-conducting arc-shaped plates. During the cooling process, the heat generated by the polyester staple fiber will be absorbed by the heat-conducting arc-shaped plates, then transferred to the cooling chamber through the heat-conducting rods, and then the heat will be taken away by the coolant flowing through the cooling chamber, realizing the cooling of the polyester staple fiber; and both ends of the polyester staple fiber pass through the strip-shaped through slots and extend to the outside, which is convenient for the transportation and processing of materials during the cooling process.

[0018] Further, both sides of the box body close to the strip-shaped through slots are fixedly connected with support plates, the top ends of the support plates are fixedly connected with two groups of relatively parallel brackets, and two parallel driving rollers are rotatably connected to the inner sides of the brackets. The polyester staple fiber is located between the two driving rollers.

[0019] By adopting the above technical solution, the support plates play a supporting role, and the brackets are used to install the driving rollers. Since the polyester staple fiber is located between the two driving rollers, the rotation of the driving rollers will drive the polyester staple fiber to move, so that it can be continuously cooled by air cooling and water cooling in the box body, ensuring the continuity and high efficiency of the cooling process.

[0020] Further, a box door is rotatably connected to the lower part of one side of the box body at the position of the water tank, and a liquid adding port is opened on the inner wall of the water tank on the side far away from the circulation pump.

[0021] By adopting the above technical solution, the box door facilitates the maintenance and repair of the components located at the water tank position; the water filling port is used to add coolant into the water tank to ensure an adequate supply of coolant, thereby ensuring that the cooling device can operate continuously and stably.

[0022] Further, support legs are fixedly installed at the four corners of the bottom end of the box body, and the four support legs are arranged in a pairwise symmetric manner.

[0023] By adopting the above technical solution, the support legs mainly play a role in supporting and stabilizing the box body. The four support legs are arranged in a pairwise symmetric manner, which can evenly share the weight of the box body and its internal components, ensuring that the box body remains stable during operation, reducing the shaking or tilting caused by unstable center of gravity, and thus ensuring that the entire cooling device can operate normally and stably.

[0024] Compared with the prior art, the present utility model has the following beneficial effects:

[0025] (1) For a rapid cooling device for polyester staple fiber production of the present utility model, by combining air cooling and water cooling and using the method of circulating air, cold air can flow in the box body in a specific direction and angle, and at the same time, the coolant circulates in the cooling cavity to absorb heat, greatly improving the cooling efficiency of polyester staple fiber, shortening the cooling time, and meeting the requirements of high-efficiency production.

[0026] (2) For a rapid cooling device for polyester staple fiber production of the present utility model, the circulating fan sends the hot air in the upper part of the box body back to the air supply pipe to be mixed with the newly entered cold air, realizing the reuse of heat energy, reducing energy consumption, helping to save production costs, and improving the economic benefits of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a rapid cooling device for polyester staple fiber production of the present utility model.

[0028] Figure 2 is an internal structural schematic diagram of a rapid cooling device for polyester staple fiber production of the present utility model.

[0029] Figure 3 is a schematic columnar structure diagram of a rapid cooling device for polyester staple fiber production of the present utility model.

[0030] Figure 4 is a cross-sectional view of a rapid cooling device for polyester staple fiber production of the present utility model.

[0031] In the figure: 1. Box body; 2. Air supply duct; 3. Intake main pipe; 4. Connecting pipe; 5. Circulation fan; 6. Air supply inclined plate; 7. Fixed shaft; 8. Liquid flow cavity; 9. Cylinder; 10. Heat-conducting arc plate; 11. Heat-conducting rod; 12. Cooling cavity; 13. First liquid inlet; 14. First liquid outlet; 15. Second liquid inlet; 16. Second liquid outlet; 17. Circulation pump; 18. Water tank; 19. First water pipe; 20. Second water pipe; 21. Water inlet pipe; 22. First return water pipe; 23. Second return water pipe; 24. Exhaust fan; 25. Bearing; 26. Sealing ring; 27. Liquid filling port; 28. Support plate; 29. Bracket; 30. Driving roller; 31. Box door; 32. Support leg; 33. Circulation pipeline. Specific implementation mode

[0032] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0033] In order to prevent the cooling link from becoming a bottleneck restricting the production of polyester staple fiber, thereby improving the production quality and efficiency of polyester staple fiber, reducing costs and energy consumption, as Figure 1 , Figure 2 , Figure 3 shown, a rapid cooling device for polyester staple fiber production includes a box body 1, an air supply duct 2, an intake main pipe 3, a connecting pipe 4 and a circulation pipeline 33. One end of the air supply duct 2 is fixedly communicated with the lower part of one side of the box body 1, the other end of the air supply duct 2 is fixedly communicated with an intake main pipe 3, one end of the circulation pipeline 33 is fixedly communicated with the upper part of one side of the box body 1, the other end of the circulation pipeline 33 is fixedly communicated with the air supply duct 2, the positions and quantities of the circulation pipeline 33 and the air supply duct 2 correspond to each other, the connecting pipe 4 is arranged at the adjacent position outside the circulation pipeline 33 and communicated with each other, a circulation fan 5 is fixedly arranged inside the circulation pipeline 33 and above the connecting pipe 4, and two groups of oppositely arranged air supply inclined plates 6 are fixedly installed on the inner walls of the top and bottom ends of the box body 1, and uniformly distributed inclined air grooves are formed on the air supply inclined plates 6;

[0034] On both upper sides of the box body 1, there are two relatively parallel strip-shaped through grooves provided. On both inner walls of the box body 1, a plurality of fixed shafts 7 are fixedly connected. On the lower outer parts of the fixed shafts 7, a second liquid inlet 15 and a second liquid outlet 16 are respectively provided. Inside the fixed shafts 7, a liquid flow cavity 8 is provided. The outer part of the fixed shafts 7 is rotatably connected with a cylinder 9 through bearings 25. Inside the two ends of the cylinder 9 and between the adjacent bearings 25, two sealing rings 26 are provided. Inside the cylinder 9, a cooling cavity 12 is provided. On the outer part of the cylinder 9, a heat-conducting arc plate 10 is fixedly installed. On the inner side of the heat-conducting arc plate 10, a plurality of uniformly distributed heat-conducting rods 11 are fixedly installed. The other ends of the heat-conducting rods 11 extend into the cooling cavity 12. On the upper and lower outer parts of the fixed shafts 7 and inside the cooling cavity 12, a first liquid inlet 13 and a first liquid outlet 14 are respectively provided;

[0035] In the middle of one side of the box body 1, a plurality of horizontally arranged and uniformly distributed exhaust fans 24 are fixedly installed. On the inner wall of the bottom end of the box body 1, a water tank 18 and a plurality of uniformly distributed circulating pumps 17 are fixedly installed. The suction end of the circulating pump 17 is fixedly connected with a first water pipe 19. One end of the first water pipe 19 far away from the circulating pump 17 is fixedly installed on one side of the water tank 18 and is communicated with the inside of the water tank 18. The discharge end of the circulating pump 17 is fixedly installed with a second water pipe 20. On one side of the second water pipe 20, a plurality of water inlet pipes 21 are fixedly installed. One end of the water inlet pipe 21 far away from the second water pipe 20 respectively extends into the corresponding second liquid inlets 15. A second return water pipe 23 is communicated inside the second liquid outlet 16. One end of the second return water pipe 23 far away from the second liquid outlet 16 is fixedly installed with a first return water pipe 22. The bottom end of the first return water pipe 22 is fixedly installed on the top of the water tank 18 and is communicated with the inside of the water tank 18.

[0036] During use, cold air enters the air supply pipe 2 through the air inlet main pipe 3 and then is sent into the box body 1. The inclined air grooves uniformly distributed on the air supply inclined plates 6 at the top end and the bottom end inside the box body 1 enable the cold air to flow inside the box body 1 in a specific direction and angle, so as to conduct preliminary air cooling on the polyester staple fiber; meanwhile, the exhaust fans 24 work to accelerate the air circulation inside the box body 1 and improve the air cooling effect;

[0037] During the cooling process, the polyester staple fiber contacts the heat-conducting arc plate 10. The heat-conducting rods 11 on the inner side of the heat-conducting arc plate 10 transfer the heat into the cooling cavity 12. The coolant in the water tank 18, under the action of the circulating pump 17, enters the liquid flow cavity 8 of the fixed shaft 7 through the first water pipe 19, the second water pipe 20 and the water inlet pipe 21 through the second liquid inlet 15, then enters the cooling cavity 12 from the first liquid inlet 13, flows out from the first liquid outlet 14 after absorbing heat, and then returns to the water tank 18 through the second liquid outlet 16, the second return water pipe 23 and the first return water pipe 22, forming a cycle of the coolant to realize water cooling of the polyester staple fiber;

[0038] The circulating fan 5 in the circulating pipeline 33 operates to send the hot air in the upper part of the box body 1 back to the air supply pipe 2 through the circulating pipeline 33, where it is mixed with the newly entered cold air, thereby improving the cooling efficiency and reducing energy consumption. Thus, by combining air cooling and water cooling and utilizing the circulating air method, rapid cooling of the polyester staple fiber is achieved.

[0039] Exemplarily, as Figure 3 shown, the present utility model further includes that the second liquid inlet 15 is connected to the cooling cavity 12 and the first liquid inlet 13 through the liquid flow cavity 8, and the cooling cavity 12 is connected to the first liquid outlet 14 and the second liquid outlet 16 through the liquid flow cavity 8.

[0040] During use, the coolant in the water tank 18, under the action of the circulating pump 17, first enters the second liquid inlet 15 of the fixed shaft 7 through the first water pipe 19, the second water pipe 20, and the water inlet pipe 21. Since the second liquid inlet 15 is connected to the cooling cavity 12 and the first liquid inlet 13 through the liquid flow cavity 8, the coolant will enter the cooling cavity 12. After absorbing heat in the cooling cavity 12, the coolant will flow to the second liquid outlet 16 through the first liquid outlet 14 and the liquid flow cavity 8. Then, the coolant returns to the water tank 18 from the second liquid outlet 16 through the second return water pipe 23 and the first return water pipe 22, completing a circulating flow process of the coolant, thereby realizing the water cooling of the polyester staple fiber.

[0041] Exemplarily, as Figure 4 shown, the present utility model further includes that the column 9 is a horizontally arranged cylindrical structure, and four groups of heat-conducting arc-shaped plates 10 are annularly arrayed around the center of the column 9. Polyester staple fibers are provided between two adjacent columns 9, and both ends of the polyester staple fibers extend to the outside through the strip-shaped through slots.

[0042] During use, since the column 9 is a horizontally arranged cylindrical structure and four groups of heat-conducting arc-shaped plates 10 are annularly arrayed around the center of the column 9, when the polyester staple fibers are placed between two adjacent columns 9, the polyester staple fibers can be in full contact with the heat-conducting arc-shaped plates 10. During the cooling process, the heat generated by the polyester staple fibers will be absorbed by the heat-conducting arc-shaped plates 10, and then transferred to the inside of the cooling cavity 12 through the heat-conducting rods 11, and the heat is taken away by the coolant flowing through the cooling cavity 12, realizing the cooling of the polyester staple fibers; and both ends of the polyester staple fibers extend to the outside through the strip-shaped through slots, which facilitates the conveying and processing of materials during the cooling process.

[0043] Exemplarily, as Figure 1 、 Figure 4As shown in the figure, the utility model further includes that on both sides of the box body 1 close to the strip-shaped through groove, there are fixedly connected support plates 28. At the top of the support plates 28, there are fixedly connected two groups of relatively parallel brackets 29. Inside the brackets 29, there are rotatably connected two parallel driving rollers 30. The polyester staple fiber is located between the two driving rollers 30.

[0044] During use, the support plates 28 play a supporting role, and the brackets 29 are used to install the driving rollers 30. Since the polyester staple fiber is located between the two driving rollers 30, the rotation of the driving rollers 30 will drive the polyester staple fiber to move, enabling it to be continuously cooled by air cooling and water cooling inside the box body 1, ensuring the continuity and high efficiency of the cooling process.

[0045] Exemplarily, as Figure 2 shown in the figure, the utility model further includes that at the lower part of one side of the box body 1 and at the position of the water tank 18, there is a rotatably connected box door 31. On the inner wall of the water tank 18 on the side far from the circulation pump 17, there is a liquid filling port 27.

[0046] During use, the box door 31 facilitates the maintenance and repair of the components located at the position of the water tank 18; the water filling port 27 is used to add coolant into the water tank 18 to ensure the sufficiency of the coolant, thereby ensuring the continuous and stable operation of the cooling device.

[0047] Exemplarily, as Figure 1 、 Figure 2 、 Figure 3 shown in the figure, the utility model further includes that at the four corners of the bottom end of the box body 1, there are fixedly installed support legs 32, and the four support legs 32 are arranged in a pairwise symmetric manner.

[0048] During use, the support legs 32 mainly play a role in supporting and stabilizing the box body 1. The four support legs 32 are arranged in a pairwise symmetric manner, which can evenly share the weight of the box body 1 and its internal components, ensuring that the box body 1 remains stable during operation, reducing the shaking or tilting caused by unstable center of gravity, and thus ensuring the normal and stable operation of the entire cooling device.

[0049] It should be noted that the utility model is a rapid cooling device for polyester staple fiber production. Sufficient and qualified coolant is added into the water tank 18 through the liquid filling port 27 on the water tank 18;

[0050] Cold air enters the air supply pipe 2 stably through the intake main pipe 3 and finally enters the box body 1;

[0051] The circulation pump 17 is turned on in sequence, the exhaust fan 24 is started, and the rotation speed of the exhaust fan 24 is adjusted according to actual needs to control the air circulation speed inside the box body 1. The circulation fan 5 is started so that the hot air at the upper part of the box body 1 can effectively return to the air supply pipe 2 through the circulation pipeline 33;

[0052] Carefully place the polyester staple fiber to be cooled between two adjacent cylinders 9, ensure that it is located between two driving rollers 30, and at the same time ensure that both ends of the polyester staple fiber extend to the outside through the strip-shaped through slots. Adjust the position of the polyester staple fiber to make it in full contact with the heat-conducting arc plate 10 to improve the cooling efficiency;

[0053] After the cold air enters the box body 1 through the air supply pipe 2, it flows through the inclined air slots on the air supply inclined plate 6 and flows in a specific direction and angle to conduct preliminary air-cooling on the polyester staple fiber;

[0054] As the polyester staple fiber moves in the box body 1, it is in close contact with the heat-conducting arc plate 10, and the generated heat is quickly transferred to the cooling cavity 12 by the heat-conducting rod 11. The circulating pump 17 drives the coolant to circulate in the cooling system. The coolant enters the liquid flow cavity 8 of the fixed shaft 7 through the first water pipe 19, the second water pipe 20, the water inlet pipe 21, and the second liquid inlet 15, and then enters the cooling cavity 12 from the first liquid inlet 13. After absorbing heat, it flows out from the first liquid outlet 14, passes through the liquid flow cavity 8, the second liquid outlet 16, the second return water pipe 23, and the first return water pipe 22 and returns to the water tank 18 to achieve water-cooling.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for producing polyester staple fibers, comprising a box body (1), an air supply pipe (2), an intake main pipe (3), a connecting pipe (4) and a circulation pipeline (33), characterized in that, One end of the air supply pipe (2) is fixedly communicated with the lower part of one side of the box body (1), the other end of the air supply pipe (2) is fixedly communicated with an air intake main pipe (3), one end of the circulation pipeline (33) is fixedly communicated with the upper part of one side of the box body (1), the other end of the circulation pipeline (33) is fixedly communicated with the air supply pipe (2), the positions and quantities of the circulation pipeline (33) and the air supply pipe (2) correspond to each other, the connecting pipe (4) is arranged at the adjacent positions outside the circulation pipeline (33) and is communicated with each other, a circulation fan (5) is fixedly arranged inside the circulation pipeline (33) and above the connecting pipe (4), and two groups of oppositely arranged air supply inclined plates (6) are fixedly installed on the inner walls of the top and bottom of the box body (1), and uniformly distributed inclined air grooves are formed in the air supply inclined plates (6); Two relatively parallel strip-shaped through grooves are formed in the upper parts of both sides of the box body (1), a plurality of fixed shafts (7) are fixedly connected to the inner walls of both sides of the box body (1), a second liquid inlet (15) and a second liquid outlet (16) are respectively formed in the lower parts of the outer sides of the fixed shafts (7), a liquid flow cavity (8) is formed in the fixed shafts (7), a cylinder (9) is rotatably connected to the outside of the fixed shafts (7) through bearings (25), two sealing rings (26) are arranged between the inner parts of both ends of the cylinder (9) and adjacent bearings (25), a cooling cavity (12) is formed in the cylinder (9), a heat-conducting arc-shaped plate (10) is fixedly installed on the outside of the cylinder (9), a plurality of uniformly distributed heat-conducting rods (11) are fixedly installed on the inner side of the heat-conducting arc-shaped plate (10), and the other ends of the heat-conducting rods (11) extend into the cooling cavity (12), and a first liquid inlet (13) and a first liquid outlet (14) are respectively formed in the upper and lower parts of the outer side of the fixed shaft (7) and inside the cooling cavity (12); A plurality of horizontally arranged and uniformly distributed exhaust fans (24) are fixedly installed in the middle of one side of the box body (1), a water tank (18) and a plurality of uniformly distributed circulation pumps (17) are fixedly installed on the inner wall of the bottom end of the box body (1), the suction end of the circulation pump (17) is fixedly connected with a first water pipe (19), one end of the first water pipe (19) far away from the circulation pump (17) is fixedly installed on one side of the water tank (18) and is communicated with the inside of the water tank (18), the discharge end of the circulation pump (17) is fixedly installed with a second water pipe (20), a plurality of water inlet pipes (21) are fixedly installed on one side of the second water pipe (20), and one end of the water inlet pipe (21) far away from the second water pipe (20) respectively extends into the corresponding second liquid inlets (15), a second return water pipe (23) is communicated with the second liquid outlet (16), one end of the second return water pipe (23) far away from the second liquid outlet (16) is fixedly installed with a first return water pipe (22), and the bottom end of the first return water pipe (22) is fixedly installed on the top of the water tank (18) and is communicated with the inside of the water tank (18).

2. The rapid cooling device for producing polyester staple fiber according to claim 1, characterized in that: The second liquid inlet (15) is communicated with the cooling cavity (12) and the first liquid inlet (13) through the liquid flow cavity (8), and the cooling cavity (12) is communicated with the first liquid outlet (14) and the second liquid outlet (16) through the liquid flow cavity (8).

3. A rapid cooling device for polyester staple fiber production according to claim 1, characterized in that: The column body (9) is a horizontally arranged cylindrical structure. Four groups of heat-conducting arc-shaped plates (10) are annularly arrayed with the center of the column body (9) as the center. Polyester staple fibers are arranged between two adjacent column bodies (9), and both ends of the polyester staple fibers pass through the strip-shaped through grooves and extend to the outside.

4. A rapid cooling device for producing polyester staple fibers according to claim 1, characterized in that: Two support plates (28) are fixedly connected to both sides of the box body (1) close to the strip-shaped through grooves. Two groups of relatively parallel brackets (29) are fixedly connected to the tops of the support plates (28). Two parallel driving rollers (30) are rotatably connected to the inner sides of the brackets (29), and the polyester staple fibers are located between the two driving rollers (30).

5. A rapid cooling device for polyester staple fiber production according to claim 1, characterized in that: A box door (31) is rotatably connected to the lower part of one side of the box body (1) at the position of the water tank (18). A liquid filling port (27) is opened on the inner wall of the water tank (18) far away from the circulation pump (17).

6. The rapid cooling device for polyester staple fiber production according to claim 1, wherein: Support legs (32) are fixedly installed at the four corners of the bottom end of the box body (1), and the four support legs (32) are arranged in a pairwise symmetric manner.

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