Cooling tower for steel strand production

Abstract

The utility model belongs to the technical field of steel strand production, and particularly relates to a cooling tower for steel strand production, which comprises a tower body, a cooling unit, a flow guide device and a control system. A gas inlet is formed in the top of the tower body, a gas outlet is formed in the bottom of the tower body, and a plurality of layers of cooling units are arranged inside the tower body. The cooling unit comprises a spiral cooling pipe, a spraying device and a flow guide plate, wavy cooling fins are arranged on the outer wall of the cooling pipe, spiral blades are arranged in the cooling pipe, the spraying device evenly sprays cooling water, and the flow guide plate guides a cooling medium to flow. The flow guide device comprises a flow guide pipe and a flow guide fan to ensure smooth airflow in the tower body. The control system monitors and controls the cooling process in real time through a temperature sensor and a pressure sensor, and the cooling efficiency and stability are ensured. The cooling efficiency can be improved, and the uniformity and stability of the cooling process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the steel strand production technical field, concretely is a cooling tower for steel strand production. BACKGROUND

[0002] With the continuous progress of steel strand production technology, the existing production equipment has been widely applied. However, these devices still have some problems in actual use. For example, the existing steel strand production and usually have the problem of low cooling efficiency, which leads to heat accumulation in the production process, affecting product quality and production efficiency. In order to solve these problems, there have been some attempts, such as using water cooling or air cooling system to improve cooling effect. Although these methods have improved related aspects to some extent, they still have limitations, such as uniform distribution of cooling medium and improvement space of cooling efficiency.

[0003] Specifically, through retrieval, a steel strand production rolling machine with publication number CN215467809U is disclosed, and the disclosure date is January 11, 2022. The design adopts the combination of three groups of rolling shafts and multiple sets of limiting springs and arc limiting plates, which can realize the rolling treatment of steel strand, but since its main concern is rolling treatment rather than cooling process, the temperature control of steel strand is poor in continuous production process, affecting the precision and quality of subsequent processing. Therefore, this design cannot meet the application in scenes with high demand for efficient cooling.

[0004] Through retrieval, a steel strand spraying production line with publication number CN209368361U is disclosed, and the disclosure date is September 10, 2019. The product adopts the combination of water washing module, spraying module, post-heating module, heat preservation pipe device, water cooling device and post-processing module, which has certain cooling capacity, but since its cooling process is relatively single and depends on water cooling, it has poor adaptability to steel strands of different materials or specifications, and the cooling effect is limited under high load production conditions. Therefore, this design cannot meet the demand for new cooling towers for steel strand production with diversified cooling demand and high efficiency production requirement.

[0005] The above problems show that the steel strand production in the current market cannot effectively cope with the new requirements for efficient cooling and adaptability to variable material specifications under complex working conditions. Therefore, the utility model provides a cooling tower for steel strand production to overcome these shortcomings and provide a new solution that is more intelligent, efficient and adaptable to variable environment. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of cooling tower for steel strand production, including tower body, cooling unit, flow guide device and control system, the tower body is cylindrical, its top is equipped with air inlet, bottom is equipped with air outlet, the tower body inside is equipped with several layers cooling unit, the cooling unit includes cooling pipe, spraying device and flow guide plate, the cooling pipe is spirally arranged in tower inner wall, the spraying device is located above cooling pipe, the flow guide plate is located below cooling pipe, the flow guide device includes flow guide pipe and flow guide fan, the flow guide pipe one end is connected air outlet, the other end is connected flow guide fan, the control system includes temperature sensor, pressure sensor and controller, the temperature sensor and pressure sensor are respectively installed in tower body inside and flow guide pipe inside, the controller is connected with temperature sensor, pressure sensor, spraying device and flow guide fan.

[0007] The cooling pipe is composed of multiple spiral pipes, each spiral pipe is fixedly connected by a connecting piece, the outer wall of the spiral pipe is provided with a plurality of cooling fins, the cooling fins are wavy, the cooling fins and the spiral pipe are fixed by welding, a plurality of flow guide holes are provided between the wave crests and wave troughs of the cooling fins, the flow guide holes have a diameter of 2mm to 4mm, the flow guide holes are uniformly distributed along the axial direction of the spiral pipe, a plurality of spiral vanes are provided inside the spiral pipe, the spiral vanes are arranged in a spiral shape, the spiral vanes and the inner wall of the spiral pipe are fixed by welding, the spiral angle of the spiral vanes is 30° to 45°, and the height of the spiral vanes is 1 / 4 to 1 / 3 of the inner diameter of the spiral pipe.

[0008] The spraying device includes a spraying pipe and a spray head, the spraying pipe is arranged circumferentially along the inside of the tower, the spray head is uniformly distributed on the spraying pipe, the spray angle of the spray head is 45° to 60°, the spray distance of the spray head is 10cm to 15cm, the spraying pipe is connected with a cooling water inlet pipe, a flow regulating valve is provided on the cooling water inlet pipe, the flow regulating valve is connected with the controller, a water collecting tank is provided below the spraying pipe, a drain pipe is provided at the bottom of the water collecting tank, the drain pipe is connected with a cooling water return pipe, a filter and a cooler are provided on the cooling water return pipe.

[0009] The flow guide plate is composed of multiple flow guide plate pieces, the flow guide plate pieces are trapezoidal, the flow guide plate pieces are fixedly connected by connecting pieces, the upper end of the flow guide plate piece is provided with a flow guide groove, the flow guide groove is V-shaped, the opening angle of the flow guide groove is 30° to 45°, the lower end of the flow guide plate piece is provided with a flow guide hole, the flow guide hole has a diameter of 2mm to 4mm, the flow guide holes are uniformly distributed along the length direction of the flow guide plate piece, the surface of the flow guide plate piece is provided with a plurality of flow guide protrusions, the flow guide protrusions are hemispherical, the height of the flow guide protrusions is 2mm to 4mm, and the flow guide protrusions are uniformly distributed along the length direction of the flow guide plate piece.

[0010] The guide pipe is composed of multiple guide pipe sections, each guide pipe section is fixedly connected through a connecting piece, a plurality of guide plates are arranged inside the guide pipe section, the guide plates are arranged in a spiral shape and are fixed through welding between the guide plates and the inner wall of the guide pipe section, the spiral angle of the guide plates is 30-45 degrees, the height of the guide plates is 1 / 4-1 / 3 of the inner diameter of the guide pipe section, a filter screen is arranged at the air outlet of the guide pipe section, the pore size of the filter screen is 1-2 mm, the filter screen is fixed through welding between the filter screen and the inner wall of the guide pipe section, and the guide fan is installed at the air outlet of the guide pipe section and is connected with the controller.

[0011] The control system further comprises an alarm and a display, the alarm and the display are connected with the controller respectively, the controller controls the operation of the spraying device and the guide fan according to the signals of the temperature sensor and the pressure sensor, and the controller further controls the operation of the alarm and the display according to the signals of the temperature sensor and the pressure sensor.

[0012] The structure and implementation principle of the utility model are as follows: the steel strand enters the tower body through the air inlet, is cooled by the cooling unit and is discharged from the air outlet. The cooling pipes in the cooling unit are arranged in a spiral shape, increasing the contact area between the cooling pipes and the steel strand and improving the cooling efficiency. The cooling fins on the outer wall of the cooling pipe are in a wave shape, increasing the heat dissipation area and improving the heat dissipation effect. The flow holes on the cooling fins and the spiral blades inside the spiral pipe further improve the flow and uniformity of the cooling medium, ensuring uniform distribution of the cooling effect. The spraying device uniformly sprays cooling water on the steel strand through the spray head, further improving the cooling effect. The guide plate guides the flow of the cooling medium through the guide groove and the flow hole, ensuring uniform distribution and efficient use of the cooling medium. The guide device discharges the cooled gas through the guide pipe and the guide fan, ensuring smooth airflow inside the tower body. The control system monitors the temperature and pressure inside the tower body in real time through the temperature sensor and the pressure sensor, controls the operation of the spraying device and the guide fan according to the monitoring results, and ensures the stability and efficiency of the cooling process.

[0013] The utility model has the advantages of: 1. the spiral arrangement of the cooling pipe and the wave-shaped design of the cooling fin increase the contact area between the cooling pipe and the steel strand and improve the cooling efficiency; 2. the uniform spraying of the spraying device and the guide design of the guide plate ensure uniform distribution and efficient use of the cooling medium, further improving the cooling effect; 3. the guide design of the guide device and the real-time monitoring of the control system ensure smooth airflow inside the tower body and the stability and efficiency of the cooling process. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole schematic view of the utility model;

[0015] Figure 2 is a tower body sectional view in the utility model;

[0016] Figure 3 is a cooling pipe structure schematic view in the utility model;

[0017] Figure 4 is a tower body sectional view in the utility model Figure 2 is an enlarged view of A in the utility model;

[0018] Figure 5 is a guide plate structure schematic view in the utility model;

[0019] Figure 6 is a tower body sectional view in the utility model Figure 2 is an enlarged view of B in the utility model;

[0020] Figure 7 is a cooling water inlet pipe structure schematic view in the utility model.

[0021] The signs are as follows:

[0022] 1, tower body;2, air inlet;3, air outlet;4, cooling unit;5, cooling pipe;6, spraying device;7, guide plate;8, guide device;9, guide pipe;10, guide fan;11, control system;12, temperature sensor;13, pressure sensor;14, controller;15, alarm;16, display;17, spiral pipe;18, connecting piece;19, fin;20, guide hole;21, spiral blade;22, spraying pipe;23, spray head;24, cooling water inlet pipe;25, flow regulating valve;26, water collecting tank;27, drain pipe;28, cooling water return pipe;29, filter;30, cooler;31, guide plate piece;32, guide groove;33, guide protrusion;34, guide pipe section;35, filter screen. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0024] Please refer to Figure 1The utility model provides a kind of cooling tower for steel strand production, including tower body 1, cooling unit 4, flow guide device 8 and control system 11.Tower body 1 is cylindrical, its top is equipped with air inlet 2, bottom is equipped with air outlet 3.Tower body 1 inside is equipped with several layers cooling unit 4, cooling unit 4 includes cooling pipe 5, spraying device 6 and deflector 7.Cooling pipe 5 is arranged in the inner wall of tower body 1 in spiral, spraying device 6 is located above cooling pipe 5, deflector 7 is located below cooling pipe 5.Flow guide device 8 includes flow guide pipe 9 and flow guide fan 10, flow guide pipe 9 one end is connected air outlet 3, another end is connected flow guide fan 10.Control system 11 includes temperature sensor 12, pressure sensor 13 and controller 14, temperature sensor 12 and pressure sensor 13 are installed in tower body 1 inside and flow guide pipe 9 inside respectively, controller 14 is connected with temperature sensor 12, pressure sensor 13, spraying device 6 and flow guide fan 10.

[0025] Please refer to Figure 2 Cooling pipe 5 is composed of multiple spiral pipes 17, and each spiral pipe 17 is fixedly connected by a connecting piece 18. The outer wall of the spiral pipe 17 is provided with a plurality of cooling fins 19, and the cooling fins 19 are in a wave shape and are fixed between the spiral pipe 17 by welding. A plurality of flow guide holes 20 are arranged between the wave crests and wave troughs of the cooling fins 19, the flow guide holes 20 have a diameter of 2 mm to 4 mm and are uniformly distributed along the axial direction of the spiral pipe 17. A plurality of spiral vanes 21 are arranged inside the spiral pipe 17, and the spiral vanes 21 are arranged in a spiral shape and are fixed between the inner wall of the spiral pipe 17 by welding. The spiral angle of the spiral vane 21 is 30° to 45°, and the height is 1 / 4 to 1 / 3 of the inner diameter of the spiral pipe 17.

[0026] Please refer to Figure 3 Spraying device 6 includes spraying pipe 22 and spray head 23. Spraying pipe 22 is arranged along the circumferential direction inside tower body 1, and spray head 23 is uniformly distributed on spraying pipe 22, and the spray angle of spray head 23 is 45° to 60°, and the spray distance is 10 cm to 15 cm. Spraying pipe 22 is connected with cooling water inlet pipe 24, cooling water inlet pipe 24 is provided with flow regulating valve 25, and flow regulating valve 25 is connected with controller 14. Water collecting tank 26 is arranged below spraying pipe 22, and water collecting tank 26 is provided with drain pipe 27 at the bottom, drain pipe 27 is connected with cooling water return pipe 28, and cooling water return pipe 28 is provided with filter 29 and cooler 30.

[0027] Please refer to Figure 4The guide plate 7 is composed of multiple guide plate pieces 31, the guide plate piece 31 is trapezoidal, and the guide plate pieces 31 are fixedly connected through the connecting piece 18. The upper end of the guide plate piece 31 is provided with a guide groove 32, the guide groove 32 is V-shaped, and the opening angle is 30° to 45°. The lower end of the guide plate piece 31 is provided with a guide hole 20, the guide hole 20 is 2mm to 4mm in diameter and is uniformly distributed along the length direction of the guide plate piece 31. The surface of the guide plate piece 31 is provided with multiple guide protrusions 33, the guide protrusion 33 is semispherical, the height is 2mm to 4mm, and the guide protrusions 33 are uniformly distributed along the length direction of the guide plate piece 31.

[0028] Please refer to Figure 5 The guide pipe 9 is composed of multiple guide pipe sections 34, and the guide pipe sections 34 are fixedly connected through the connecting piece 18. The guide pipe section 34 is internally provided with multiple guide plates 31, the guide plates 31 are arranged in a spiral shape and are fixed between the inner wall of the guide pipe section 34 through welding. The spiral angle of the guide plate 31 is 30° to 45°, and the height is 1 / 4 to 1 / 3 of the inner diameter of the guide pipe section 34. The air outlet of the guide pipe section 34 is provided with a filter screen 35, the pore size of the filter screen 35 is 1mm to 2mm, the material of the filter screen 35 is stainless steel, and the filter screen 35 is fixed between the inner wall of the guide pipe section 34 through welding. The guide fan 10 is installed at the air outlet of the guide pipe section 34, the guide fan 10 is connected with the controller 14, and the air volume of the guide fan 10 is 1000 to 2000 cubic meters / hour.

[0029] Please refer to Figure 6 The control system 11 further includes an alarm 15 and a display 16, and the alarm 15 and the display 16 are respectively connected with the controller 14. The controller 14 controls the operation of the spraying device 6 and the guide fan 10 according to the signals of the temperature sensor 12 and the pressure sensor 13, and controls the operation of the alarm 15 and the display 16 according to the signals of the temperature sensor 12 and the pressure sensor 13.

[0030] The working principle is as follows:

[0031] The steel strand enters the tower body 1 through the air inlet 2, is cooled by the cooling unit 4, and is discharged from the air outlet 3. The cooling pipes 5 in the cooling unit 4 are arranged in a spiral shape, increasing the contact area between the cooling pipes 5 and the steel strand and improving the cooling efficiency. The cooling fins 19 on the outer wall of the cooling pipes 5 are in a wave shape, increasing the heat dissipation area and improving the heat dissipation effect. The flow guide holes 20 on the cooling fins 19 and the spiral blades 21 inside the spiral pipe 17 further improve the flow and uniformity of the cooling medium, ensuring uniform distribution of the cooling effect. The spraying device 6 uniformly sprays cooling water on the steel strand through the spray head 23, further improving the cooling effect. The flow guide plate 7 guides the flow of the cooling medium through the flow guide groove 32 and the flow guide hole 20, ensuring uniform distribution and efficient use of the cooling medium. The flow guide device 8 discharges the cooled gas through the flow guide pipe 9 and the flow guide fan 10, ensuring smooth airflow inside the tower body 1. The control system 11 monitors the temperature and pressure inside the tower body 1 in real time through the temperature sensor 12 and the pressure sensor 13, controls the operation of the spraying device 6 and the flow guide fan 10 according to the monitoring results, and ensures the stability and efficiency of the cooling process.

[0032] Specific application scenarios:

[0033] In the production process of steel strand, the steel strand comes out of the high-temperature production line and enters the cooling tower 1 through the air inlet 2. After entering the tower body 1, the steel strand is cooled by multiple layers of cooling units 4. The cooling pipes 5 in each layer of cooling units 4 are in full contact with the steel strand through the spiral arrangement and the design of the cooling fins 19, improving the cooling efficiency. At the same time, the spraying device 6 uniformly sprays cooling water on the steel strand through the spray head 23, further accelerating the cooling process. The flow guide plate 7 guides the flow of the cooling medium through the flow guide groove 32 and the flow guide hole 20, ensuring uniform distribution and efficient use of the cooling medium. The flow guide device 8 discharges the cooled gas through the flow guide pipe 9 and the flow guide fan 10, ensuring smooth airflow inside the tower body 1. During the entire cooling process, the control system 11 monitors the temperature and pressure inside the tower body 1 in real time through the temperature sensor 12 and the pressure sensor 13, automatically adjusts the operation of the spraying device 6 and the flow guide fan 10 according to the monitoring results, and ensures the stability and efficiency of the cooling process. If the temperature or pressure exceeds the preset value, the controller 14 will trigger the alarm 15 to issue an alarm and display the current status information on the display 16, so that the operator can take timely measures.

[0034] Certain terminology can also be used in the summary or detailed description of the present application for the purpose of brevity but are intended to be in no way limiting of the application. For example, the terms "right," "left," "rear," "front," "up," "down," "under" and the like as can be referenced herein can mean such terms only in the context of the particular view being referred to and can not necessarily be intended to refer to similar terms in other views unless otherwise indicated. Line drawings can not necessarily be drawn to scale unless otherwise indicated.

[0035] It should be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components, and the terms "one" or "said" can be used interchangeably with "another" or "another."

[0036] The above description illustrates and describes several preferred embodiments of the present application, but as stated above, the present application is not limited to the described forms or arrangements, but instead, can be used in various other combinations, modifications, and environments and can be implemented in various other ways, all of which are within the scope of the present application. Accordingly, the application is not to be restricted, except in the spirit or scope of the claims appended hereto.

Claims

1. A cooling tower for steel strand production, comprising a tower body (1), a cooling unit (4), a flow guiding device (8), and a control system (11), characterized in that: The tower body (1) is cylindrical, with an air inlet (2) at the top and an air outlet (3) at the bottom. The tower body (1) contains several layers of cooling units (4). Each cooling unit (4) includes cooling pipes (5), a spray device (6), and a guide plate (7). The cooling pipes (5) are arranged spirally on the inner wall of the tower body (1). The spray device (6) is located above the cooling pipes (5), and the guide plate (7) is located below the cooling pipes (5). The guide device (8) includes a guide pipe (9) and a guide vane (8). The fan (10) is connected to the air outlet (3) at one end of the guide pipe (9) and the guide fan (10) at the other end. The control system (11) includes a temperature sensor (12), a pressure sensor (13) and a controller (14). The temperature sensor (12) and the pressure sensor (13) are respectively installed inside the tower body (1) and inside the guide pipe (9). The controller (14) is connected to the temperature sensor (12), the pressure sensor (13), the spray device (6) and the guide fan (10).

2. A cooling tower for steel strand production according to claim 1, characterized in that: The cooling pipe (5) is composed of multiple spiral pipes (17). Each spiral pipe (17) is fixedly connected to the other by a connector (18). The outer wall of the spiral pipe (17) is provided with several heat sinks (19). The heat sinks (19) are wavy and are fixed to the spiral pipe (17) by welding. Several guide holes (20) are provided between the crests and troughs of the heat sinks (19). The diameter of the guide holes (20) is 2 mm to 4 mm. The guide holes (20) are evenly distributed along the axial direction of the spiral pipe (17). The spiral pipe (17) is provided with several spiral blades (21). The spiral blades (21) are arranged in a spiral shape and are fixed to the inner wall of the spiral pipe (17) by welding. The spiral angle of the spiral blades (21) is 30° to 45°. The height of the spiral blades (21) is 1 / 4 to 1 / 3 of the inner diameter of the spiral pipe (17).

3. A cooling tower for steel strand production according to claim 1, characterized in that: The spraying device (6) includes a spray pipe (22) and a nozzle (23). The spray pipe (22) is arranged circumferentially inside the tower body (1). The nozzles (23) are evenly distributed on the spray pipe (22). The spray angle of the nozzles (23) is 45° to 60° and the spray distance of the nozzles (23) is 10cm to 15cm. The spray pipe (22) is connected to the cooling water inlet pipe (24). The cooling water inlet pipe (24) is equipped with a flow regulating valve (25). The flow regulating valve (25) is connected to the controller (14). A water collection tank (26) is provided below the spray pipe (22). A drain pipe (27) is provided at the bottom of the water collection tank (26). The drain pipe (27) is connected to the cooling water return pipe (28). A filter (29) and a cooler (30) are provided on the cooling water return pipe (28).

4. A cooling tower for steel strand production according to claim 1, characterized in that: The guide plate (7) is composed of multiple guide plate pieces (31). The guide plate pieces (31) are trapezoidal and are fixedly connected by connectors (18). The upper end of the guide plate piece (31) is provided with a guide groove (32). The guide groove (32) is V-shaped and the opening angle of the guide groove (32) is 30° to 45°. The lower end of the guide plate piece (31) is provided with a guide hole (20). The diameter of the guide hole (20) is 2mm to 4mm. The guide hole (20) is evenly distributed along the length direction of the guide plate piece (31). The surface of the guide plate piece (31) is provided with several guide protrusions (33). The guide protrusions (33) are hemispherical and the height of the guide protrusions (33) is 2mm to 4mm. The guide protrusions (33) are evenly distributed along the length direction of the guide plate piece (31).

5. A cooling tower for steel strand production according to claim 1, characterized in that: The guide pipe (9) is composed of multiple guide pipe sections (34), and each guide pipe section (34) is fixedly connected to the other by a connector (18). The guide pipe section (34) is provided with several guide plates (31), which are arranged in a spiral shape and are fixed to the inner wall of the guide pipe section (34) by welding. The spiral angle of the guide plate (31) is 30° to 45°, and the height of the guide plate (31) is 1 / 4 to 1 / 3 of the inner diameter of the guide pipe section (34). The air outlet of the guide pipe section (34) is provided with a filter screen (35), the aperture of the filter screen (35) is 1mm to 2mm, and the filter screen (35) is fixed to the inner wall of the guide pipe section (34) by welding. The guide fan (10) is installed at the air outlet of the guide pipe section (34) and is connected to the controller (14).

6. A cooling tower for steel strand production according to claim 1, characterized in that: The control system (11) also includes an alarm (15) and a display (16), which are respectively connected to a controller (14). The controller (14) controls the operation of the spray device (6) and the guide fan (10) according to the signals of the temperature sensor (12) and the pressure sensor (13). The controller (14) also controls the operation of the alarm (15) and the display (16) according to the signals of the temperature sensor (12) and the pressure sensor (13).

7. A cooling tower for steel strand production according to claim 2, characterized in that: The spiral angle of the spiral tube (17) is 30° to 45°, and the spiral direction of the spiral tube (17) is the same as the direction of movement of the steel strand.

8. A cooling tower for steel strand production according to claim 3, characterized in that: The number of nozzles (23) is 8 to 16, and the number of spray pipes (22) is 2 to 4.

9. A cooling tower for steel strand production according to claim 4, characterized in that: The number of the guide vanes (31) is 4 to 8, and the height of the guide vanes (31) is 1 / 4 to 1 / 3 of the total height of the guide vanes (7).

10. A cooling tower for steel strand production according to claim 5, characterized in that: The filter screen (35) is made of stainless steel, and the air volume of the guide fan (10) is 1000 to 2000 cubic meters per hour.

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