Intelligent windproof and anti-freezing device for cooling tower

Abstract

The invention relates to the technical field of cooling tower anti-freezing, and provides a cooling tower intelligent windproof anti-freezing device which comprises a frame body, a control cabinet body and a roller shutter box assembly, the frame body comprises two symmetrically-arranged unit stand columns which are transmitted to the control cabinet body through wires, and a wind speed sensor is responsible for monitoring the change of the wind speed; the wind speed information is converted into electric signals and transmitted to the control cabinet body, the data processor installed in the control cabinet body receives the signals and begins to analyze and process the received signals, finally, the analyzed signals directly control the roller shutter power motor to be started through the electric wire, and the windproof curtain is driven to move upwards or downwards. The roller shutter power motor can determine the upward or downward movement amount of the windproof curtain according to the magnitude of the signal, so that the effects of intelligent control and automatic adjustment of the size of the anti-freezing opening are achieved, and through the technical scheme, the problems of low automation degree and poor safety effect in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of cooling tower antifreeze technology, specifically to an intelligent windproof and antifreeze device for cooling towers. Background Technology

[0002] Cooling towers are one of the most important pieces of equipment in industrial production. They can remove the heat generated during the production process by evaporating water, thereby reducing the temperature of the production equipment. However, in cold weather, the evaporation effect of cooling towers is limited, which can easily lead to the water inside the cooling tower freezing or cracking, affecting its normal operation and service life. To solve this problem, people usually use windproof and antifreeze devices to protect cooling towers.

[0003] The prior art, with publication number CN212538866U and titled "Indirect Air-Cooled Tower Anti-Freezing Device," includes a support frame, an anti-suction net, a guide rail, a roller shutter, a roller shutter box, an anti-fall cable, and an anti-fall cable winding reel. The anti-fall cable winding reel is sleeved on the output shaft of the roller shutter motor. The upper end of the anti-fall cable is fixed to the upper crossbeam of the support frame. The roller shutter box contains a roller shutter motor, a roller shutter shaft, and a winding reel. The output shaft of the roller shutter motor is driven and connected to one end of the roller shutter shaft, and the other end of the roller shutter shaft is driven and connected to the winding reel shaft. The upper end of the roller shutter extends out of the roller shutter. The box is fixed by the upper crossbeam. Two pulleys extending outward are provided on both sides of the roller shutter box. The roller shutter box moves up and down along the guide rails on both sides by embedding the pulleys into the guide rails on both sides. This patent provides a very complete anti-freezing measure for intercooled units in high-altitude and cold regions, filling the gap in anti-freezing operation experience in high-altitude and cold regions. However, this patent can only manually adjust the size of the anti-freezing opening and cannot automatically adjust according to the ambient temperature and humidity. This not only increases the difficulty of operation, but also cannot adapt well to environmental changes and is prone to energy waste. Summary of the Invention

[0004] This invention proposes an intelligent windproof and antifreeze device for cooling towers, which solves the problems of low automation and poor safety performance.

[0005] The technical solution of the present invention is as follows:

[0006] The intelligent windproof and antifreeze device for cooling towers includes a frame body, a control cabinet body, and a roller shutter box assembly. The frame body includes two symmetrically arranged unit columns. The bottom of the two unit columns is fixedly connected to a unit lower sealing plate by bolts. One side of the two unit columns is fixedly connected to a plurality of horizontally arranged anti-floating rods arranged in an array at equal intervals by bolts. One side of the plurality of horizontally arranged anti-floating rods is fixedly connected to two symmetrically arranged vertical anti-floating rods by bolts. The top of the two unit columns is welded together with a canopy plate.

[0007] The column is fixedly connected to an outer pulley and an inner pulley for the power cord by bolts. The inner pulley and the outer pulley together house the motor power cord. An infrared temperature sensor and a wind speed sensor are installed on the column. The infrared temperature sensor is electrically connected to the control cabinet body.

[0008] As a preferred embodiment of the present invention, a wind-resistant grid is fixedly connected to the frame body by bolts, and two symmetrically arranged roller shutter box grooves are opened on the wind-resistant grid. Two integrally formed and symmetrically arranged balancing racks are provided on the wind-resistant grid.

[0009] As a preferred embodiment of the present invention, the wind-resistant mesh has a cavity that extends through itself, and several rows of equally spaced grid vertical rib flat steel are welded inside the cavity, and several arrays of equally spaced grid horizontal rib round steel are welded inside the cavity.

[0010] In a preferred embodiment of the present invention, the roller shutter box assembly includes a roller shutter box body, on which four symmetrically arranged roller shutter box pulleys are rotatably mounted. The pulleys are slidably connected inside the roller shutter box slide groove. A windproof curtain hanging rod is fixedly installed on the frame body. A power inlet bracket is fixedly connected to the roller shutter box body by bolts. A balance shaft is rotatably mounted inside the roller shutter box body. A roller shutter shaft body is fixedly sleeved on the outer circumference of the balance shaft. A windproof curtain body is fixedly installed on the roller shutter shaft body.

[0011] As a preferred embodiment of the present invention, the windproof curtain hanging rod is movably disposed inside the windproof curtain body, and the windproof curtain hanging rod is provided with a plurality of arrayed and equidistantly distributed hanging holes. The frame body is welded with a plurality of arrayed and equidistantly distributed unit crossbars, and a plurality of arrayed and equidistantly distributed roller blind hooks are welded on one of the unit crossbars. The balance shaft is externally fixedly fitted with a balance gear, and the balance gear is meshed with the balance rack.

[0012] As a preferred embodiment of the present invention, a roller shutter power motor is installed on the right side inside the roller shutter box body. A first sprocket is fixedly sleeved on the output end of the roller shutter power motor. A torque limiter is fixedly installed on the outer circumferential surface of the roller shutter shaft. A second sprocket is fixedly installed on the torque limiter. The first sprocket and the second sprocket are connected together to the roller shutter shaft drive chain.

[0013] As a preferred embodiment of the present invention, a fall arrestor is installed on the left side inside the roller shutter box body, and the fall arrestor and the outer circumferential surface of the roller shutter shaft are connected together by a roller shutter shaft drive chain through a connecting sprocket.

[0014] The working principle and beneficial effects of this invention are as follows:

[0015] 1. This invention incorporates a control cabinet and an infrared temperature sensor. When the infrared temperature sensor detects a change in the ambient temperature, it converts this temperature information into an electrical signal, which is then transmitted to the control cabinet via a wire. Similarly, a wind speed sensor monitors changes in wind speed, converts the wind speed information into an electrical signal, and transmits it to the control cabinet. The data processor installed inside the control cabinet receives the signal, analyzes and processes it, and then directly controls the roller shutter motor via a wire to start the windproof curtain, causing it to move up or down. The roller shutter motor determines how much the windproof curtain moves up or down based on the signal strength, thus achieving intelligent control and automatic adjustment of the anti-freeze opening size. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a front view of the structure of the present invention;

[0019] Figure 3 This is a front view of the wind-resistant grid structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the overall structure of the rack and pinion of the present invention;

[0021] Figure 5 This is a schematic diagram of the overall structure of the roller shutter box assembly of the present invention;

[0022] Figure 6 This is a schematic diagram of the left side of the roller shutter box assembly of the present invention;

[0023] Figure 7 For the present invention Figure 5 Enlarged view of point A in the middle;

[0024] Figure 8 For the present invention Figure 3 Enlarged view at point B in the middle;

[0025] Figure 9 For the present invention Figure 1 Enlarged view at point C;

[0026] Figure 10 For the present invention Figure 2 Enlarged view of point D in the middle.

[0027] In the diagram: 1. Unit lower sealing plate; 2. Unit column; 3. Horizontal anti-sway bar; 4. Vertical anti-sway bar; 5. Balance gear; 6. Roller blind hook; 7. Canopy panel; 8. Roller blind motor; 9. Roller blind shaft drive chain; 10. Torque limiter; 11. Balance shaft; 12. Roller blind shaft body; 13. Grid horizontal rib round steel; 14. Fall arrestor; 15. Roller blind box pulley; 16. Power supply bracket; 17. Windproof curtain body; 18. Windproof curtain hanging rod; 19. Balance rack; 20. Roller blind box slide; 21. Grid vertical rib flat steel; 22. Control cabinet body; 23. Power cord inner pulley; 24. Power cord outer pulley; 25. Infrared temperature sensor; 26. Wind speed sensor; 27. Motor power cord. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figures 1-10As shown, this embodiment proposes an intelligent windproof and antifreeze device for cooling towers, including a frame body, a control cabinet body 22, and a roller shutter box assembly. The frame body includes two symmetrically arranged unit columns 2. The bottom of the two unit columns 2 is fixedly connected to a unit lower sealing plate 1 by bolts. One side of the two unit columns 2 is fixedly connected to a plurality of horizontally arranged anti-floating rods 3 by bolts. One side of the plurality of horizontally arranged anti-floating rods 3 is fixedly connected to two symmetrically arranged vertical anti-floating rods 4 by bolts. The top of the two unit columns 2 is welded together with a canopy plate 7. Power cord outer pulleys 24 and power cord inner pulleys 23 are fixedly connected to the columns by bolts. The power cord inner pulley 23 and the power cord outer pulley 24 are together fitted with a motor power cord 27. An infrared temperature sensor 25 and a wind speed sensor 26 are respectively installed on the columns. Infrared temperature sensor 25 is electrically connected to control cabinet body 22. Through the control cabinet body 22 and infrared temperature sensor 25, when infrared temperature sensor 25 detects a change in ambient temperature, it converts this temperature information into an electrical signal, which is transmitted to control cabinet body 22 via a wire. Similarly, wind speed sensor 26 monitors wind speed changes, converts wind speed information into an electrical signal, and transmits it to control cabinet body 22. The data processor installed inside control cabinet body 22 receives the signal, analyzes and processes it, and finally directly controls the roller shutter motor 8 via wires to start, causing the windproof curtain to move up or down. The roller shutter motor 8 determines how much the windproof curtain moves up or down based on the signal strength, thus achieving intelligent control and automatic adjustment of the anti-freeze opening size.

[0031] The frame body is fixedly connected to a wind-resistant grid by bolts. Two symmetrically arranged roller shutter box grooves 20 are opened on the wind-resistant grid, and two integrally formed and symmetrically arranged balance racks 19 are provided on the wind-resistant grid.

[0032] The wind-resistant mesh has a cavity that runs through it. Inside the cavity, there are several rows of equally spaced grid vertical rib flat steel bars 21 and several arrays of equally spaced grid horizontal rib round steel bars 13.

[0033] In this embodiment, an infrared temperature sensor 25 and a wind speed sensor 26 are respectively installed on the unit column 2 and electrically connected to the control cabinet body 22 to achieve the effect of automatic adjustment. The specific operation process is as follows: the coordinated operation between the control cabinet body 22 and the infrared temperature sensor 25 and the wind speed sensor 26 is based on a data processor. The data processor is installed inside the control cabinet body 2222. The data processor receives signals from the infrared temperature sensor 25 and the wind speed sensor 26 and analyzes and processes these signals.

[0034] The data processor inside the control cabinet 22 determines the direction and distance of movement of the windproof curtain based on the received temperature and wind speed signals according to the preset algorithm. If the data processor detects that the ambient temperature is dropping, it will send a signal to the roller shutter motor 8 to start the motor and drive the windproof curtain downward to reduce the size of the antifreeze opening, thereby reducing the entry of cold air. Conversely, if the data processor detects that the ambient temperature is rising, it will send a signal to the roller shutter motor 8 to start the motor and drive the windproof curtain upward to increase the size of the antifreeze opening, thereby increasing the entry of cold air.

[0035] Furthermore, the signal from the wind speed sensor 26 is also received and processed by the data processor. If the wind speed sensor 26 detects strong wind, the data processor will send a signal to the roller shutter motor 8 to start the motor and drive the windproof curtain upward to reduce the size of the antifreeze opening, thereby reducing the entry of cold air. Conversely, if the wind speed sensor 26 detects a light breeze, the data processor will send a signal to the roller shutter motor 8 to start the motor and drive the windproof curtain downward to increase the size of the antifreeze opening, thereby increasing the entry of cold air. In this way, the coordinated operation between the control cabinet body 22, the infrared temperature sensor 25, and the wind speed sensor 26 achieves the intelligent control and automatic adjustment of the size of the antifreeze opening of the cooling tower's intelligent windproof and antifreeze device. This helps to improve the efficiency and performance of the cooling tower while reducing energy consumption and operating costs.

[0036] In addition, the use of grid vertical rib flat steel 21 can improve the stress strength of the grid frame. The large negative pressure inside the tower can easily cause grid deformation. The use of grid vertical rib flat steel 21 can effectively improve the compressive strength. The balance rack 19 is integrally formed by bending process, which improves the installation efficiency.

[0037] Example 2

[0038] like Figures 1-10 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a roller shutter box assembly including a roller shutter box body, four symmetrically arranged roller shutter box pulleys 15 are rotatably mounted on the roller shutter box body, the pulleys are slidably connected inside the roller shutter box slide groove 20, a windproof curtain hanging rod 18 is fixedly installed on the frame body, a power supply bracket 16 is fixedly connected to the roller shutter box body by bolts, a balance shaft 11 is rotatably mounted inside the roller shutter box body, a roller shutter shaft body 12 is fixedly sleeved on the outer circumferential surface of the balance shaft 11, and a windproof curtain body 17 is fixedly installed on the roller shutter shaft body 12.

[0039] The windproof curtain hanging rod 18 is movably installed inside the windproof curtain body 17. The windproof curtain hanging rod 18 has several arrays of equally spaced hanging holes. The frame body has several arrays of equally spaced unit crossbars welded on it. One of the unit crossbars has several arrays of equally spaced roller blind hooks 6 welded on it. The balance shaft 11 is externally fixedly fitted with a balance gear 5, which meshes with the balance rack 19.

[0040] A roller shutter motor 8 is installed on the right side inside the roller shutter box body. A first sprocket is fixedly sleeved on the output end of the roller shutter motor 8. A torque limiter 10 is fixedly installed on the outer circumference of the roller shutter shaft. A second sprocket is fixedly installed on the torque limiter 10. The first sprocket and the second sprocket are connected together to the roller shutter shaft drive chain 9.

[0041] A fall arrestor 14 is installed on the left side inside the roller shutter box. The fall arrestor 14 and the outer circumference of the roller shutter shaft are connected by a roller shutter shaft drive chain 9 through a connecting sprocket.

[0042] In this embodiment, the roller blind motor 8 starts and drives the second sprocket on the torque limiter 10 through the roller blind shaft transmission chain 9. The torque limiter 10 drives the cloth shaft to rotate, and the windproof curtain body 17 is wrapped around the outer circumference of the cloth shaft, which at the same time drives the roller blind box body to move up or down. The two balance gears 5 are connected to the balance rack 19, so the balance gears 5 rotate and drive the balance shaft 11 to rotate together. If the roller blind shaft transmission chain 9 or the windproof curtain body 17 breaks during the descent, the roller blind box assembly will fall rapidly due to its own gravity. At this time, the anti-fall device 14 generates resistance when the roller blind box assembly falls, reduces the impact force, and makes the object stop moving slowly.

[0043] It should be noted that the main function of the torque limiter 10 is to prevent the roller blind box assembly from continuing to rise to the top during the upward process of the roller blind box assembly. If the limit switch of the roller blind motor 8 malfunctions, causing the roller blind box to continue rising and the roller blind hook 6 to jam, it will cause the windproof curtain body 17 to break, the roller blind motor 8 to burn out, and damage to the internal gear structure. The torque limiter 10 can be set with a preset torque. When the roller blind hook 6 jams, the pulling force will exceed the preset torque. At this time, there will be relative sliding between the sprocket and the friction plate inside the torque limiter 10, but the torque during sliding will still remain between the two, and there will still be torque transmission. This allows the drive end to idle while the gearbox end stops moving, thereby achieving the effect of stopping the roller blind box body from continuing to move upward, and playing a protective role for the windproof curtain and the roller blind motor 8.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart windproof and antifreeze device for cooling towers, characterized in that, The system includes a frame body, a control cabinet body (22), and a roller shutter box assembly. The frame body includes two symmetrically arranged unit columns (2). The bottom of the two unit columns (2) is fixedly connected to a unit lower sealing plate (1) by bolts. One side of the two unit columns (2) is fixedly connected to several arrays of equidistant horizontal anti-floating rods (3) by bolts. One side of several horizontal anti-floating rods (3) is fixedly connected to two symmetrically arranged vertical anti-floating rods (4) by bolts. The top of the two unit columns (2) is welded together with a canopy plate (7). The column is fixedly connected to an outer power cord pulley (24) and an inner power cord pulley (23) by bolts. The inner power cord pulley (23) and the outer power cord pulley (24) are together fitted with a motor power cord (27). An infrared temperature sensor (25) and a wind speed sensor (26) are installed on the column. The infrared temperature sensor (25) is electrically connected to the control cabinet body (22).

2. The intelligent windproof and antifreeze device for cooling towers according to claim 1, characterized in that, The frame body is fixedly connected to a wind-resistant grid by bolts. Two symmetrically arranged roller shutter box grooves (20) are opened on the wind-resistant grid. Two integrally formed and symmetrically arranged balance racks (19) are provided on the wind-resistant grid.

3. The intelligent windproof and antifreeze device for cooling towers according to claim 2, characterized in that, The wind-resistant grid has a cavity that runs through it. Inside the cavity, there are several rows of equally spaced grid vertical rib flat steel (21) and several arrays of equally spaced grid horizontal rib round steel (13).

4. The intelligent windproof and antifreeze device for cooling towers according to claim 3, characterized in that, The roller shutter box assembly includes a roller shutter box body, on which four symmetrically arranged roller shutter box pulleys (15) are rotatably mounted. The pulleys are slidably connected inside the roller shutter box slide groove (20). A windproof curtain hanging rod (18) is fixedly installed on the frame body. A power inlet bracket (16) is fixedly connected to the roller shutter box body by bolts. A balance shaft (11) is rotatably mounted inside the roller shutter box body. A roller shutter shaft body (12) is fixedly sleeved on the outer circumference of the balance shaft (11). A windproof curtain body (17) is fixedly installed on the roller shutter shaft body (12).

5. The intelligent windproof and antifreeze device for cooling towers according to claim 4, characterized in that, The windproof curtain hanging rod (18) is movably installed inside the windproof curtain body (17). The windproof curtain hanging rod (18) has several arrays of equally spaced hanging holes. The frame body is welded with several arrays of equally spaced unit crossbars. One of the unit crossbars is welded with several arrays of equally spaced roller blind hooks (6). The balance shaft (11) is fixedly fitted with a balance gear (5). The balance gear (5) is meshed with the balance rack (19).

6. The intelligent windproof and antifreeze device for cooling towers according to claim 5, characterized in that, A roller shutter power motor (8) is installed on the right side inside the roller shutter box body. A first sprocket is fixedly sleeved on the output end of the roller shutter power motor (8). A torque limiter (10) is fixedly installed on the outer circumference of the roller shutter shaft. A second sprocket is fixedly installed on the torque limiter (10). The first sprocket and the second sprocket are connected to the roller shutter shaft drive chain (9).

7. The intelligent windproof and antifreeze device for cooling towers according to claim 6, characterized in that, A fall arrestor (14) is installed on the left side inside the roller shutter box body. The fall arrestor (14) and the outer circumference of the roller shutter shaft are connected by a roller shutter shaft drive chain (9) through a connecting sprocket.

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