Cooling tower system for hair fiber production

Abstract

This utility model discloses a cooling tower system for fiber production, including a tower body, a water pump, and a water tank located below the tower body. The tower body has support legs at its bottom and an exhaust fan at its top. Inside the tower body, from top to bottom, are arranged a water collection device, a hot water atomizing device, a secondary atomizing device, and ventilation louvers. A drain pipe is located above the water tank at the bottom of the tower body. The water pump inlet is connected to a suction pipe extending into the water tank, and the water pump outlet is connected to a hollow water distribution plate via an outlet pipe. The hollow water distribution plate is horizontally positioned, and its bottom surface is equipped with several water flow blockage monitors. This utility model increases the contact area between water droplets and air, resulting in higher heat exchange efficiency with the upward-flowing air and significantly improved cooling effect on hot water. Simultaneously, it recovers water mist carried by the airflow, reducing water loss. Furthermore, it provides real-time, intuitive monitoring of whether the annular water jacket is blocked or severely blocked, determining whether maintenance and cleaning of the annular water jacket are necessary.

Description

Technical Field

[0001] This utility model belongs to the field of hair fiber production technology, specifically relating to a cooling tower system used in hair fiber production. Background Technology

[0002] The production of hair fiber involves a cooling system during the spinning process. This system is designed to dissipate excess heat generated by the shearing and frictional heating of the screw extruder during operation, preventing issues such as decreased melt viscosity or plastic decomposition due to temperature rise. The hair fiber production workshop operates multiple screw extruders simultaneously. Each screw extruder is equipped with an external cooling water jacket, and a cooling tower is located outside the workshop. Hot water from each cooling water jacket, after heat exchange, flows back to the cooling tower through hot water pipes for cooling. The cooling tower then pumps the cooled hot water back to the cooling water jackets.

[0003] Currently, most cooling towers are packed-type cooling towers. If the water quality system is poor, the packing material inside the tower is prone to clogging. Furthermore, the packing material is susceptible to aging, deformation, and brittleness, easily leading to channeling. Packing fragments can also clog equipment and pipelines in the process system, affecting the original distribution of air and water and reducing the effective heat exchange area within the tower. Due to long-term use, various blockages can occur in the external cooling water jacket of the screw extruder, affecting the cooling effect of the cooling water on the screw extruder and consequently impacting spinning quality. Currently, it is difficult to observe whether there is blockage to determine the cleaning cycle of the cooling water jacket. Therefore, the protective sleeve is removed periodically to check for blockages and clean the interior. This method is rather passive; sometimes, after disassembly, it is found that there is no blockage inside, which affects work efficiency. Utility Model Content

[0004] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a cooling tower system for fiber production with high heat exchange efficiency and the ability to intuitively monitor whether the cooling water jacket is blocked.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a cooling tower system for fiber production, comprising a tower body, a water pump, and a water pool located below the tower body. The bottom of the tower body is provided with support legs, and the top of the tower body is provided with an exhaust fan. From top to bottom, the tower body is provided with a water collection device, a hot water atomizing device, a secondary atomizing device, and a ventilation louver. The bottom of the tower body is provided with a drain pipe located above the water pool. The water pump inlet is connected to a water pumping pipe extending into the water pool. The water pump outlet is connected to a hollow water distribution plate through an outlet pipe. The hollow water distribution plate is horizontally set, and the bottom surface of the hollow water distribution plate is provided with several water flow blockage monitors.

[0006] The tower body has a rectangular cross-section. The water collection device includes a stainless steel cylinder with a rectangular cross-section. A support rail is provided on the front and rear sides of the inner wall of the tower body. The stainless steel cylinder is installed on the support rails on the front and rear sides respectively. The outer wall of the stainless steel cylinder is used to contact the inner wall of the tower body on the same side. A rectangular opening is provided on the right side of the tower body for horizontally pushing and pulling the stainless steel cylinder. A sealing door is provided at the rectangular opening. A door handle is provided on the outside of the sealing door. At least two sets of vertically arranged baffle water collection and air guiding structures are provided inside the stainless steel cylinder.

[0007] Each set of baffled water collection and air guiding structures includes an upper semi-circular pipe assembly and a lower semi-circular pipe assembly. The lower semi-circular pipe assembly includes several lower semi-circular pipes with their openings facing downwards. The several lower semi-circular pipes are evenly spaced along the left and right directions. The center line of each lower semi-circular pipe is along the front and back directions. The front and rear ends of each lower semi-circular pipe are fixedly connected to the front and rear side plates of the stainless steel cylinder, respectively. The upper semi-circular tube assembly includes several upper semi-circular tubes with their openings facing upwards. The several upper semi-circular tubes are evenly spaced along the left and right directions. The center line of each upper semi-circular tube is along the front and back directions. The front and rear ends of each upper semi-circular tube are fixedly connected to the front and rear side plates of the stainless steel cylinder, respectively. The left side of the leftmost upper semicircular tube of the upper semicircular tube assembly is fixedly connected to the inner wall of the left side plate of the stainless steel cylinder, and the right side of the rightmost upper semicircular tube of the upper semicircular tube assembly is fixedly connected to the inner wall of the right side plate of the stainless steel cylinder. Each lower semicircular tube is located directly below the two adjacent upper semicircular tubes, and a first airflow gap is formed between the outer circle of the lower semicircular tube and the outer circle of the upper semicircular tube. The lower semicircular tube at the bottom of the upper set of deflector-type water collection and air guiding structures is located directly above the two adjacent upper semicircular tubes. The inner circle of the lower semicircular tube of the upper set of deflector-type water collection and air guiding structures and the inner circle of the upper semicircular tube of the lower set of deflector-type water collection and air guiding structures form a second airflow gap.

[0008] A water-filtering and air-permeable screen is horizontally installed at the upper end of the stainless steel cylinder. The four sides of the water-filtering and air-permeable screen are fixedly connected to the inner wall of the stainless steel cylinder, and the bottom surface of the water-filtering and air-permeable screen is connected to the upper semi-circular pipe of the uppermost set of baffle water-collecting and air-guiding structures. Each of the upper semi-circular tubes has drainage holes at both ends at the bottom that allow for vertical drainage. The surface of each upper and lower semicircular tube is coated with nanomaterials to form a hydrophobic rough surface.

[0009] The hot water atomizing device includes a main water inlet pipe and several spray pipes. The spray pipes are evenly spaced in the tower body along the front-to-back direction. Each spray pipe is horizontally arranged in the left-to-right direction. The right end of all spray pipes passes through and extends out of the right side wall of the tower body. The main water inlet pipe is located on the right side of the outside of the tower body along the front-to-back direction. The right end of each spray pipe is connected to the left side of the main water inlet pipe. Each spray pipe has several atomizing nozzles arranged at left-to-right intervals at its bottom.

[0010] The secondary atomizing device is a rectangular grid plate. The inner wall of the tower is provided with support bars for placing the grid plate. The height of the grid plate is 20mm. Several square grid holes are evenly opened on the grid plate. The side length of each grid hole is 6-9mm. The distance between two adjacent grid holes, i.e. the thickness of the grid, is 0.6-0.8mm.

[0011] The water flow blockage monitor includes, from top to bottom, an inlet pipe connector, a transparent conical tube, a cover plate, and an outlet pipe connector. The transparent conical tube is smaller at the top and larger at the bottom. The upper end of the transparent conical tube is connected to the lower end of the inlet pipe connector. The cover plate is detachably connected to the lower port of the transparent conical tube. The upper end of the outlet pipe connector is connected to the center of the cover plate. The upper surface of the cover plate is provided with an elastic valve assembly located inside the transparent conical tube. The outside of the transparent conical tube is provided with scale lines along the generatrix direction for monitoring the position of the elastic valve assembly.

[0012] The resilient valve assembly includes a disc-shaped valve plate, which is aligned with and parallel to the cover plate. The bottom surface of the valve plate and the top surface of the cover plate are connected by several compression springs, which are arranged in a circumferential array along the center line of the cover plate. The bottom surface of the valve plate is provided with an upper positioning post located inside the upper end of the compression spring, and the top surface of the bottom plate is provided with a lower positioning post located inside the lower end of the compression spring.

[0013] The lower outer edge of the transparent conical tube is integrally provided with an annular plate. The top surface of the cover plate and the bottom surface of the annular plate are attached to each other and connected as one unit by several bolt assemblies arranged in a circular array. A sealing ring is provided between the top surface of the cover plate and the bottom surface of the annular plate. Both the outer circle of the cover plate and the outer circle of the annular plate are provided with corresponding upper and lower installation positioning mark grooves.

[0014] Several tension members are provided between the top surface of the cover plate and the inner wall of the transparent conical tube. All tension members are arranged in a circumferential array along the center line of the cover plate and are located outside the elastic valve assembly. Each tensioning component includes a first L-shaped plate and a second L-shaped plate. The lower end of the vertical section of the first L-shaped plate is fixedly connected to the top surface of the cover plate, and the upper end of the vertical section of the second L-shaped plate is fixedly connected to the inner wall of the transparent conical tube. A hook gap is formed between the upper horizontal section of the first L-shaped plate and the cover plate. The lower horizontal section of the second L-shaped plate extends into the hook gap. The bottom surface of the upper horizontal section of the first L-shaped plate and the top surface of the lower horizontal section of the second L-shaped plate are pressed together.

[0015] Compared with the prior art, the present invention has the following advantages by adopting the above technical solution: 1) This utility model eliminates the packing material within the tower body, overcoming a series of problems that affect the performance of the tower and process system equipment, such as aging, deformation, and cracking of the packing material, clogging and washing off of the water distribution nozzles, and packing fragments clogging pipes, pumps, and heat exchangers. Simultaneously, the use of primary atomizing nozzles and secondary atomizing devices effectively controls the diffusion angle of the water droplet jet, thereby reducing wall flow phenomena, increasing the contact area between the water droplets and air, and improving the heat exchange efficiency between the water droplets and the upward-flowing air, significantly enhancing the cooling effect on hot water.

[0016] 2) The tower body is equipped with two supporting guide rails and a sealed door to facilitate the placement and horizontal pulling out of the water collection device. The water collection device collects water mist rising with the air, reducing moisture loss. The water collection device adopts a multi-set baffled water collection and air guiding structure in a stainless steel cylinder. Each set of multiple baffled water collection and air guiding structures uses a layer of upper semi-circular tubes with an open top and a layer of lower semi-circular tubes with an open bottom. The staggered arrangement of the upper and lower semi-circular tubes guides the airflow, increasing the contact area with the water mist in the gas. Most importantly, the surfaces of the upper and lower semi-circular tubes are coated with nanomaterials to form a hydrophobic rough surface. When the water mist passes through the first and second airflow gaps in the baffled structure, the water mist comes into contact with the hydrophobic rough surface. The hydrophobic rough surface efficiently captures water mist in the air, converging it into water droplets. It guides the water droplets to gather and flow, promoting their rolling. The water droplets that roll into the upper semi-circular tube gather and drip downwards through the drain hole. When the air passes through the uppermost water-filtering and air-permeable mesh, the smaller amount of water mist in the air is captured again by the mesh, converging into water droplets and dripping downwards. In this way, after passing through at least two sets of baffled water-collecting and air-guiding structures, the water mist in the air is basically collected. The air discharged from the tower by the exhaust fan contains less water mist, thereby reducing the waste of water resources.

[0017] 3) The outlet of the cooling water jacket of the screw extrusion pressure is connected to the main inlet pipe of the hot water atomizing device via a hot water pipe. The hot water atomizing device uses one main inlet pipe to supply water to multiple spray pipes simultaneously. Several atomizing nozzles on the multiple spray pipes atomize the hot water. The diameter of the water droplets after being sprayed from the atomizing nozzles has a certain limit. In order to obtain smaller diameter water droplets or mist droplets, a secondary atomizing device is set below, thereby achieving the purpose of secondary atomization of water droplets through auxiliary means. The working principle of the secondary atomizing device is as follows: after the water is sprayed downward through the atomizing nozzle, it forms rapidly falling water droplets. Because the atomizing nozzle has a certain diffusion angle, the falling water droplets have a certain angle with the vertical direction. When rapidly falling water droplets collide with the top of the grid plate, some droplets directly hit the 0.6-0.8mm grid at the top of the grid holes and are cut into smaller droplets. Most droplets collide with the sides of the grid holes and split into many smaller droplets, thus achieving the purpose of secondary atomization of water droplets, increasing the contact area between water droplets and air, and improving the heat exchange effect with the flowing air.

[0018] 4) After heat exchange between the two-stage atomized water mist and rising air, the cooled water flows into the water tank through the drain pipe. The water pump draws water from the tank through the suction pipe and then delivers it to the hollow water distribution plate through the outlet pipe. High-pressure water simultaneously supplies water to multiple water flow blockage monitors within the hollow water distribution plate. The outlet pipe of each water flow blockage monitor is connected to a cold water pipe and the inlet of a cooling water jacket of a screw extruder. The high-pressure water pushes the valve plate downward, and the smoothness of the water flow is observed in real time according to the scale corresponding to the valve plate position. A transparent conical tube is installed to facilitate observation of the valve plate's position relative to the scale line to determine whether a blockage has occurred in the pipe.

[0019] The cover plate is fixedly connected to the annular plate by several bolt assemblies, facilitating the installation of the internal elastic valve assembly. A sealing ring is also included to ensure reliable sealing. Due to the large area of ​​the cover plate and the small diameter of the outlet pipe joint, a tensioning component is specifically designed to prevent the cover plate from bulging downwards in the middle under high water pressure, which would affect the seal. When the cover plate is under pressure, the second L-shaped plate pulls on the first L-shaped plate, thus maintaining the cover plate's horizontality and ensuring a seal between the cover plate and the annular plate. This also improves the strength of the cover plate.

[0020] When installing the cover plate, first make the installation positioning mark groove on the cover plate offset from the installation positioning mark groove on the ring plate by a certain angle. Then rotate the cover plate or transparent conical tube to make the installation positioning mark grooves on the cover plate and the ring plate correspond. The holes of the corresponding through bolt assemblies between the cover plate and the ring plate are all connected one by one. At this time, the horizontal section of the lower end of the second L-shaped plate extends into the hook gap to ensure that each tensioning component is assembled and connected in place.

[0021] In summary, this utility model is based on sound principles. By setting a primary atomizing nozzle and a secondary atomizing device, it effectively controls the diffusion angle of the water droplet jet, thereby reducing wall flow phenomena, increasing the contact area between the water droplets and the air, and improving the heat exchange efficiency between the water droplets and the upward-flowing air. This significantly improves the cooling effect on hot water. At the same time, it recovers the water mist that flows with the air, reducing water loss. The water flow blockage monitor adopts a purely mechanical structure, which is not easily damaged and has a long service life. By observing the scale value corresponding to the position of the valve plate, it can determine whether the annular water jacket outside the screw extruder is blocked or severely blocked. The analysis of the blockage inside the sleeve determines whether maintenance and unblocking are needed, and the annular water jacket can be disassembled in a timely manner. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of the intermediate water collection device; Figure 3 After removing the water filter and air vent Figure 2 Top view; Figure 4 for Figure 1 Top view of the secondary atomization device; Figure 5 This is a schematic diagram of a water flow blockage monitor in the absence of water pressure. Figure 6 This is a schematic diagram of the water flow blockage monitor during normal water supply operation. Figure 7 for Figure 5 and Figure 6 Top view of the middle cover plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1-7 As shown, the cooling tower system for fiber production of this utility model includes a tower body 30, a water pump 54, and a water tank 55 located below the tower body 30. The bottom of the tower body 30 is provided with support legs 31, and the top of the tower body 30 is provided with an exhaust fan 32. Inside the tower body 30, from top to bottom, there are a water collection device 33, a hot water atomizing device, a secondary atomizing device 34, and a ventilation louver 35. The bottom of the tower body 30 is provided with a drain pipe 36 located above the water tank 55, and a drain valve 56 is provided on the drain pipe 36. The water inlet of the water pump 54 is connected to a water pumping pipe 57 that extends into the water tank 55, and the water outlet of the water pump 54 is connected to a hollow water distribution plate 59 through a water outlet pipe 58. The hollow water distribution plate 59 is horizontally set, and the bottom surface of the hollow water distribution plate 59 is provided with several water flow blockage monitoring devices 24.

[0025] The tower body 30 has a rectangular cross-section. The water collection device 33 includes a stainless steel cylinder 38 with a rectangular cross-section. A support rail 39 is provided on the front and rear sides of the inner wall of the tower body 30. The stainless steel cylinder 38 is respectively installed on the support rail 39 on the front and rear sides. The outer wall of the stainless steel cylinder 38 is used to contact the inner wall of the tower body 30 on the same side. A rectangular opening is provided on the right side of the tower body 30 for horizontally pushing and pulling to put the stainless steel cylinder 38 in. A sealing door 40 is provided at the rectangular opening. A door handle 41 is provided on the outside of the sealing door 40. At least two sets of vertically arranged baffle water collection and air guiding structures are provided inside the stainless steel cylinder 38.

[0026] Each set of baffled water collection and air guiding structures includes an upper semi-circular pipe assembly and a lower semi-circular pipe assembly. The lower semi-circular pipe assembly includes several lower semi-circular pipes 42 with their openings facing downwards. The several lower semi-circular pipes 42 are evenly spaced along the left and right directions. The center line of each lower semi-circular pipe 42 is along the front and back directions. The front and rear ends of each lower semi-circular pipe 42 are fixedly connected to the front and rear side plates of the stainless steel cylinder 38, respectively. The upper semi-circular tube assembly includes several upper semi-circular tubes 43 with their openings facing upwards. The several upper semi-circular tubes 43 are evenly spaced along the left and right directions. The center line of each upper semi-circular tube 43 is along the front and back directions. The front and rear ends of each upper semi-circular tube 43 are fixedly connected to the front and rear side plates of the stainless steel cylinder 38, respectively. The left side of the leftmost upper semicircular tube 43 of the upper semicircular tube assembly is fixedly connected to the inner wall of the left side plate of the stainless steel cylinder 38, and the right side of the rightmost upper semicircular tube 43 of the upper semicircular tube assembly is fixedly connected to the inner wall of the right side plate of the stainless steel cylinder 38. Each lower semicircular tube 42 is located directly below the two adjacent upper semicircular tubes 43, and a first airflow gap 44 is formed between the outer circle of the lower semicircular tube 42 and the outer circle of the upper semicircular tube 43. The lower semicircular tube 42 at the bottom of the upper set of deflector-type water collection and air guiding structures is located directly above the two adjacent upper semicircular tubes 43. A second airflow gap 45 is formed between the inner circle of the lower semicircular tube 42 of the upper set of deflector-type water collection and air guiding structures and the inner circle of the upper semicircular tube 43 of the lower set of deflector-type water collection and air guiding structures.

[0027] A water-filtering and air-permeable mesh 46 is horizontally installed at the upper end of the stainless steel cylinder 38. The four sides of the water-filtering and air-permeable mesh 46 are fixedly connected to the inner wall of the stainless steel cylinder 38, and the bottom surface of the water-filtering and air-permeable mesh 46 is connected to the upper semi-circular pipe 43 of the uppermost set of baffle water-collecting and air-guiding structures.

[0028] Each of the upper semi-circular tubes 43 has drainage holes 47 at both ends of its bottom that are open to the top and bottom.

[0029] The surfaces of each upper semicircular tube 43 and each lower semicircular tube 42 are coated with nanomaterials to form a hydrophobic rough surface.

[0030] The hot water atomizing device includes a main water inlet pipe 48 and several spray pipes 49. The spray pipes 49 are evenly spaced in the tower body 30 along the front-back direction. Each spray pipe 49 is horizontally arranged in the left-right direction. The right end of all spray pipes 49 passes through and extends out of the right side wall of the tower body 30. The main water inlet pipe 48 is located on the right side of the outside of the tower body 30 along the front-back direction. The right end of each spray pipe 49 is connected to the left side of the main water inlet pipe 48. Each spray pipe 49 has several atomizing nozzles 50 arranged at left-right intervals at its bottom.

[0031] The secondary atomizing device 34 is a rectangular grid plate 51. The inner wall of the tower body 30 is provided with support strips 52 for placing the grid plate 51. The height of the grid plate 51 is 20mm. Several square grid holes 53 are evenly opened on the grid plate 51. The side length of each grid hole 53 is 6-9mm. The distance between two adjacent grid holes 53, i.e. the thickness of the grid, is 0.6-0.8mm.

[0032] The water flow blockage monitor 24 includes an inlet pipe connector 1, a transparent conical tube 2, a cover plate 3, and an outlet pipe connector 4 arranged sequentially from top to bottom. The transparent conical tube 2 is smaller at the top and larger at the bottom. The upper end of the transparent conical tube 2 is connected to the lower end of the inlet pipe connector 1. The cover plate 3 is detachably connected to the lower port of the transparent conical tube 2. The upper end of the outlet pipe connector 4 is connected to the center of the cover plate 3. The upper surface of the cover plate 3 is provided with an elastic valve assembly located inside the transparent conical tube. The outside of the transparent conical tube 2 is provided with a scale line 5 along the generatrix direction for monitoring the position of the elastic valve assembly.

[0033] The elastic valve assembly includes a disc-shaped valve plate 6, which is co-centered and parallel to the cover plate 3. The bottom surface of the valve plate 6 and the top surface of the cover plate 3 are connected by several compression springs 7. The several springs are arranged in a circumferential array along the center line of the cover plate 3. The bottom surface of the valve plate 6 is provided with an upper positioning post 8 located inside the upper end of the compression spring 7, and the top surface of the bottom plate is provided with a lower positioning post 9 located inside the lower end of the compression spring 7.

[0034] The lower outer edge of the transparent conical tube 2 is integrally provided with an annular plate 10. The top surface of the cover plate 3 is attached to the bottom surface of the annular plate 10 and connected as a whole by a number of bolt assemblies 11 arranged in a circular array. A sealing ring 12 is provided between the top surface of the cover plate 3 and the bottom surface of the annular plate 10.

[0035] Both the outer circle of the cover plate 3 and the outer circle of the annular plate 10 are provided with corresponding upper and lower installation positioning mark grooves 15.

[0036] Several tension members are provided between the top surface of the cover plate 3 and the inner wall of the transparent conical tube 2. All tension members are arranged in a circumferential array along the center line of the cover plate 3 and are located outside the elastic valve assembly.

[0037] Each tensioning member includes a first L-shaped plate 13 and a second L-shaped plate 14. The lower end of the vertical section of the first L-shaped plate 13 is fixedly connected to the top surface of the cover plate 3, and the upper end of the vertical section of the second L-shaped plate 14 is fixedly connected to the inner wall of the transparent conical tube 2. A hook gap is formed between the horizontal section of the upper end of the first L-shaped plate 13 and the cover plate 3. The horizontal section of the lower end of the second L-shaped plate 14 extends into the hook gap. The bottom surface of the horizontal section of the upper end of the first L-shaped plate 13 is pressed into the top surface of the horizontal section of the lower end of the second L-shaped plate 14.

[0038] The working process of this utility model is as follows: After the exhaust fan 32 is started, it draws air from inside the tower body 30. External air enters the tower body 30 through the ventilation louvers 35, passes upward through the secondary atomizing device 34, the hot water atomizing device, and the water collection device 33, and is then drawn out by the exhaust fan 32. The high-temperature water, after absorbing heat in the annular water jacket outside the screw extruder, enters the tower body 30 through the hot water atomizing device, atomizing the hot water and significantly increasing the contact area between the hot water and the air. The atomized hot steam exchanges heat with the upward air, significantly improving the cooling effect of the high-temperature water mist. The diameter of the water droplets sprayed from the atomizing nozzle 50 has a certain limit. In order to obtain smaller diameter water droplets or mist droplets, a secondary atomizing device 34 is set below to achieve the purpose of secondary atomization of water droplets through auxiliary means. The working principle of the secondary atomizing device 34 is as follows: After the water is sprayed downward through the atomizing nozzle 50, it forms rapidly falling water droplets. Since the atomizing nozzle 50 has a certain diffusion angle, the falling water droplets have a certain angle with the vertical direction. When the rapidly falling water droplets collide with the top of the grid plate 51, some droplets directly hit the 0.6-0.8mm grid at the top of the grid hole 53 and are cut into smaller droplets. Most droplets collide with the side of the grid hole 53 and split into many smaller droplets, thus achieving the purpose of secondary atomization of water droplets, increasing the contact area between water droplets and air, and improving the heat exchange effect with the flowing air. After heat exchange, the water droplets collect at the bottom of the tower body 30 and are discharged into the water tank 55 through the drain pipe 36 (water is replenished into the water tank 55 at intervals). Then, the water pump 54 draws water out of the water tank 55 through the water suction pipe 57 and delivers it to the hollow water distribution plate 59 through the water outlet pipe 58. High-pressure water is simultaneously supplied to multiple water flow blockage monitors 24 in the hollow water distribution plate 59. The water outlet pipe connector 4 of each water flow blockage monitor 24 is connected to a cold water pipe and connected to the inlet of the cooling water jacket of a screw extrusion. High-pressure water pushes valve plate 6 downwards, and the smoothness of water flow is observed in real time according to the scale corresponding to the position of valve plate 6. A transparent conical tube 2 is installed to facilitate observation of the position of valve plate 6 on the scale line to determine whether there is a blockage in the pipeline, thereby realizing the circulating cooling of the screw extruder.

[0039] When air passes through the water collection device 33, it carries a significant amount of water mist. As the water mist passes through the first airflow gap 44 and the second airflow gap 45, it comes into contact with the hydrophobic rough surface. This surface efficiently captures the water mist and guides the water droplets to gather and flow, promoting their rolling. The water droplets that roll into the upper semi-circular tube 43 then collect and drip downwards through the drain hole 47. When the air passes through the uppermost water-filtering and air-permeable mesh 46, the smaller amount of water mist is again captured by the mesh, gathers into droplets, and drips downwards. Thus, after passing through at least two sets of baffled water collection and air-guiding structures, the water mist in the air is essentially collected. The air discharged from the tower body 30 by the exhaust fan 32 contains less water mist, thereby reducing water waste.

[0040] The working process of the water flow blockage monitor 24 is as follows: High-pressure water in the hollow water distribution pan 59 enters the transparent conical tube through the inlet pipe connector 1, applying pressure to the valve plate 6. The valve plate 6 moves downward, compressing the compression spring 7. The high-pressure water flows downward through the annular gap between the outer circle of the valve plate 6 and the inner wall of the transparent conical tube 2, and then is discharged through the outlet pipe connector 4. Since a scale line 5 for monitoring the position of the valve plate 6 is opened on the outer wall of the transparent conical tube 2, the position of the valve plate 6 is 0 when the outer circle of the valve plate 6 contacts the inner circle of the transparent conical tube. The scale line 5 is marked with numbers sequentially from 0 down. The scale value corresponding to the position of the valve plate 6 is set to the normal water pressure scale in the range of 8-20. When the scale value corresponding to the valve plate 6 is in the range of 0-8, it indicates that a blockage has occurred in the cooling water jacket. The smaller the scale value, the more serious the blockage. At this time, it is necessary to stop the spinning operation and disassemble the cooling water jacket for clearing the blockage.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A cooling tower system for fiber production, comprising a tower body, a water pump, and a water tank located below the tower body, wherein the bottom of the tower body is provided with support legs, characterized in that: The tower is equipped with an exhaust fan at the top. Inside the tower, from top to bottom, there are a water collection device, a hot water atomizing device, a secondary atomizing device, and a ventilation louver. At the bottom of the tower, there is a drain pipe above the water tank. The water pump inlet is connected to a water pumping pipe that extends into the water tank. The water pump outlet is connected to a hollow water distribution plate through an outlet pipe. The hollow water distribution plate is horizontally set, and there are several water flow blockage monitors on the bottom surface of the hollow water distribution plate.

2. The cooling tower system for fiber production according to claim 1, characterized in that: The tower body has a rectangular cross-section. The water collection device includes a stainless steel cylinder with a rectangular cross-section. A support rail is provided on the front and rear sides of the inner wall of the tower body. The stainless steel cylinder is installed on the support rails on the front and rear sides respectively. The outer wall of the stainless steel cylinder is used to contact the inner wall of the tower body on the same side. A rectangular opening is provided on the right side of the tower body for horizontally pushing and pulling the stainless steel cylinder. A sealing door is provided at the rectangular opening. A door handle is provided on the outside of the sealing door. At least two sets of vertically arranged baffle water collection and air guiding structures are provided inside the stainless steel cylinder.

3. The cooling tower system for fiber production according to claim 2, characterized in that: Each set of baffled water collection and air guiding structures includes an upper semi-circular pipe assembly and a lower semi-circular pipe assembly. The lower semi-circular pipe assembly includes several lower semi-circular pipes with their openings facing downwards. The several lower semi-circular pipes are evenly spaced along the left and right directions. The center line of each lower semi-circular pipe is along the front and back directions. The front and rear ends of each lower semi-circular pipe are fixedly connected to the front and rear side plates of the stainless steel cylinder, respectively. The upper semi-circular tube assembly includes several upper semi-circular tubes with their openings facing upwards. The several upper semi-circular tubes are evenly spaced along the left and right directions. The center line of each upper semi-circular tube is along the front and back directions. The front and rear ends of each upper semi-circular tube are fixedly connected to the front and rear side plates of the stainless steel cylinder, respectively. The left side of the leftmost upper semicircular tube of the upper semicircular tube assembly is fixedly connected to the inner wall of the left side plate of the stainless steel cylinder, and the right side of the rightmost upper semicircular tube of the upper semicircular tube assembly is fixedly connected to the inner wall of the right side plate of the stainless steel cylinder. Each lower semicircular tube is located directly below the two adjacent upper semicircular tubes, and a first airflow gap is formed between the outer circle of the lower semicircular tube and the outer circle of the upper semicircular tube. The lower semicircular tube at the bottom of the upper set of deflector-type water collection and air guiding structures is located directly above the two adjacent upper semicircular tubes. The inner circle of the lower semicircular tube of the upper set of deflector-type water collection and air guiding structures and the inner circle of the upper semicircular tube of the lower set of deflector-type water collection and air guiding structures form a second airflow gap.

4. The cooling tower system for fiber production according to claim 3, characterized in that: A water-filtering and air-permeable screen is horizontally installed at the upper end of the stainless steel cylinder. The four sides of the water-filtering and air-permeable screen are fixedly connected to the inner wall of the stainless steel cylinder, and the bottom surface of the water-filtering and air-permeable screen is connected to the upper semi-circular pipe of the uppermost set of baffle water-collecting and air-guiding structures. Each of the upper semi-circular tubes has drainage holes at both ends at the bottom that allow for vertical drainage. The surface of each upper and lower semicircular tube is coated with nanomaterials to form a hydrophobic rough surface.

5. The cooling tower system for fiber production according to claim 1, characterized in that: The hot water atomizing device includes a main water inlet pipe and several spray pipes. The spray pipes are evenly spaced in the tower body along the front-to-back direction. Each spray pipe is horizontally arranged in the left-to-right direction. The right end of all spray pipes passes through and extends out of the right side wall of the tower body. The main water inlet pipe is located on the right side of the outside of the tower body along the front-to-back direction. The right end of each spray pipe is connected to the left side of the main water inlet pipe. Each spray pipe has several atomizing nozzles arranged at left-to-right intervals at its bottom.

6. The cooling tower system for fiber production according to claim 1, characterized in that: The secondary atomizing device is a rectangular grid plate. The inner wall of the tower is provided with support bars for placing the grid plate. The height of the grid plate is 20mm. Several square grid holes are evenly opened on the grid plate. The side length of each grid hole is 6-9mm. The distance between two adjacent grid holes, i.e. the thickness of the grid, is 0.6-0.8mm.

7. The cooling tower system for fiber production according to claim 1, characterized in that: The water flow blockage monitor includes, from top to bottom, an inlet pipe connector, a transparent conical tube, a cover plate, and an outlet pipe connector. The transparent conical tube is smaller at the top and larger at the bottom. The upper end of the transparent conical tube is connected to the lower end of the inlet pipe connector. The cover plate is detachably connected to the lower port of the transparent conical tube. The upper end of the outlet pipe connector is connected to the center of the cover plate. The upper surface of the cover plate is provided with an elastic valve assembly located inside the transparent conical tube. The outside of the transparent conical tube is provided with scale lines along the generatrix direction for monitoring the position of the elastic valve assembly.

8. The cooling tower system for fiber production according to claim 7, characterized in that: The resilient valve assembly includes a disc-shaped valve plate, which is aligned with and parallel to the cover plate. The bottom surface of the valve plate and the top surface of the cover plate are connected by several compression springs, which are arranged in a circumferential array along the center line of the cover plate. The bottom surface of the valve plate is provided with an upper positioning post located inside the upper end of the compression spring, and the top surface of the bottom plate is provided with a lower positioning post located inside the lower end of the compression spring.

9. The cooling tower system for producing hair fibers according to claim 7, characterized in that: The lower outer edge of the transparent conical tube is integrally provided with an annular plate. The top surface of the cover plate and the bottom surface of the annular plate are attached to each other and connected as one unit by several bolt assemblies arranged in a circular array. A sealing ring is provided between the top surface of the cover plate and the bottom surface of the annular plate. Both the outer circle of the cover plate and the outer circle of the annular plate are provided with corresponding upper and lower installation positioning mark grooves.

10. The cooling tower system for producing hair fibers according to claim 7, characterized in that: Several tension members are provided between the top surface of the cover plate and the inner wall of the transparent conical tube. All tension members are arranged in a circumferential array along the center line of the cover plate and are located outside the elastic valve assembly. Each tensioning component includes a first L-shaped plate and a second L-shaped plate. The lower end of the vertical section of the first L-shaped plate is fixedly connected to the top surface of the cover plate, and the upper end of the vertical section of the second L-shaped plate is fixedly connected to the inner wall of the transparent conical tube. A hook gap is formed between the upper horizontal section of the first L-shaped plate and the cover plate. The lower horizontal section of the second L-shaped plate extends into the hook gap. The bottom surface of the upper horizontal section of the first L-shaped plate and the top surface of the lower horizontal section of the second L-shaped plate are pressed together.

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