New type of cooling water tower for hair fiber spinning

Abstract

This utility model discloses a novel cooling water tower for hair fiber spinning, comprising a tower body, support legs at the bottom of the tower body, an exhaust fan at the top of the tower body, and, from top to bottom, a water collection device, a hot water atomizing device, a secondary atomizing device, and ventilation louvers inside the tower body, and a drain pipe at the bottom of the tower body. The utility model is based on a scientific principle; by setting up primary atomizing nozzles and secondary atomizing devices, it effectively controls the diffusion angle of the water droplet jet, thereby reducing wall flow phenomena, increasing the contact area between water droplets and 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, while simultaneously recovering the water mist carried by the airflow, reducing water loss.

Description

Technical Field

[0001] This utility model belongs to the field of hair fiber production technology, specifically relating to a novel cooling water tower for hair fiber spinning. 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. Hair fiber production workshops typically have multiple screw extruders operating simultaneously. Each 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 via hot water pipes for cooling. The cooling tower then pumps the cooled water back to the cooling water jackets. Currently, most cooling towers are packed-fill cooling towers. If the water quality is poor, the packing material inside the tower is prone to clogging. Furthermore, the packing material is susceptible to aging, deformation, and brittleness, leading to channeling phenomena. Packing fragments can also clog equipment and pipes in the process system, affecting the original distribution of air and water and reducing the effective heat exchange area within the tower. Utility Model Content

[0003] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a novel cooling water tower for hair fiber spinning that eliminates the need for fillers and uses a spray method for heat exchange.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a novel cooling water tower for hair fiber spinning, comprising a tower body, a support leg at the bottom of the tower body, an exhaust fan at the top of the tower body, a water collection device, a hot water atomizing device, a secondary atomizing device and a ventilated louver arranged sequentially from top to bottom inside the tower body, and a drain pipe at the bottom of the tower body. 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.

[0005] 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.

[0006] 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.

[0007] Each of the upper semi-circular tubes has drainage holes at both ends at the bottom that allow for vertical drainage.

[0008] 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] 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.

[0012] 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.

[0013] 3) The hot water atomization device uses a single inlet pipe to simultaneously supply water to multiple spray pipes. Several atomizing nozzles on these spray pipes atomize the hot water. The diameter of the water droplets after spraying from these nozzles has a certain limit. To obtain smaller diameter droplets or mist, a secondary atomization device is installed below, thus achieving secondary atomization of the water droplets through auxiliary means. The working principle of the secondary atomization device is as follows: After water is sprayed downwards through the atomizing nozzles, it forms rapidly falling droplets. Due to the diffusion angle of the atomizing nozzles, the falling droplets have a certain angle with the vertical direction. When the rapidly falling droplets collide with the top of the grid plate, some droplets directly hit the upper 0.6-0.8mm of the grid openings and are cut into smaller droplets. Most droplets collide with the sides of the grid openings and break into many smaller droplets, thus achieving secondary atomization of the water droplets, increasing the contact area between the water droplets and the air, and improving the heat exchange effect with the flowing air.

[0014] In summary, the principle of this utility model is scientific. By setting a primary atomizing nozzle and a secondary atomizing device, the diffusion angle of the water droplet jet is effectively controlled, thereby reducing the occurrence of wall flow phenomenon, increasing the contact area between water droplets and air, and improving the heat exchange efficiency between water droplets and upward-flowing air. This significantly improves the cooling effect on hot water, while also recovering the water mist that flows with the air, reducing water loss. Attached Figure Description

[0015] 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. Detailed Implementation

[0016] 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.

[0017] like Figures 1-4 As shown, the present invention relates to a novel cooling water tower for hair fiber spinning, comprising a tower body 30, a support leg 31 at the bottom of the tower body 30, an exhaust fan 32 at the top of the tower body 30, and, from top to bottom, a water collection device 33, a hot water atomizing device, a secondary atomizing device 34, and a ventilated louver 35 arranged sequentially inside the tower body 30. A drain pipe 36 is provided at the bottom of the tower body 30, and a drain valve is provided on the drain pipe 36.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The surfaces of each upper semicircular tube 43 and each lower semicircular tube 42 are coated with nanomaterials to form a hydrophobic rough surface.

[0023] 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.

[0024] 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.

[0025] 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 upper 0.6-0.8mm grid of the grid holes 53 and are cut into smaller droplets. Most droplets collide with the sides of the grid holes 53 and break into many smaller droplets, thus achieving secondary atomization of the water droplets, increasing the contact area between the water droplets and the 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 storage tank through the drain pipe 36 (water is replenished to the water storage tank at intervals). Then, the water pump transports the low-temperature water in the water storage tank to the cooling water jacket, thereby realizing the circulating cooling of the screw extruder. 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.

[0026] 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 new type of cooling water tower for spinning of fibers, comprising a tower body, the bottom of which is provided with supporting legs, characterized in that: The top of the tower is equipped with an exhaust fan. 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. The bottom of the tower is equipped with a drain pipe. 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.

2. A novel cooling water tower for spinning of hair fibers according to claim 1 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.

3. A novel cooling water tower for spinning of hair fibers according to claim 2, 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.

4. The novel cooling water tower for hair fiber spinning according to claim 2, characterized in that: Each of the upper semi-circular tubes has drainage holes at both ends at the bottom that allow for vertical drainage.

5. The novel cooling water tower for hair fiber spinning according to claim 2, characterized in that: The surface of each upper and lower semicircular tube is coated with nanomaterials to form a hydrophobic rough surface.

6. The novel cooling water tower for hair fiber spinning 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.

7. The novel cooling water tower for hair fiber spinning 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.

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