Cooling tower with inner wall cleaning function

Abstract

The utility model relates to the technical field of cooling towers, in particular to a cooling tower with an inner wall cleaning function, which comprises a tower body, a first partition plate is fixedly connected to the inner wall of the tower body, a dehydrator is fixedly connected below the first partition plate, and a cleaning component is rotatably connected below the dehydrator. A spraying system is fixedly connected to the position, corresponding to the lower portion of the cleaning assembly, in the tower body, a second partition plate is fixedly connected to the inner wall of the tower body, filler is connected to the top of the second partition plate through bolts, and the spraying system is located above the filler. According to the improved cooling tower, an upper scraping plate is driven by a rocker to do circular motion on the inner wall of the tower body through rotation of a driving gear and a driven gear, a lower reciprocating lead screw synchronously moves through a chain wheel and a chain, so that an annular wall wiping device does lifting motion in an independent cavity, and two sets of self-cleaning structures are arranged in different areas; the frequency of manually entering the tower for cleaning is reduced, and the labor cost and the labor intensity are reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a cooling tower with an internal wall cleaning function. Background Technology

[0002] A cooling tower is a device that uses the contact between water and air to dissipate waste heat generated in industrial processes or refrigeration and air conditioning systems through evaporation and heat exchange. It mainly consists of a tower body, packing material, a water collector, and a spray system. Its principle is to spray hot water onto the packing material, increasing the contact area and time between water and air, allowing for sufficient heat and mass exchange. During this process, some water evaporates, absorbing a large amount of latent heat of vaporization, thus lowering the temperature of the remaining water. The cooled water can then be recycled, achieving the goal of conserving water resources and energy.

[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: 1. Most cooling towers do not have an automatic cleaning device for the inner wall. As the usage time increases, dirt, algae and other impurities easily accumulate on the inner wall of the tower. These dirt will affect the flow of water and the efficiency of heat exchange, resulting in a decrease in the cooling effect of the cooling tower and an increase in energy consumption; 2. In order to ensure the performance of the cooling tower, it is necessary to clean it manually every day. However, manual cleaning is not only labor-intensive and inefficient, but also poses certain safety risks when entering the tower for cleaning, and also increases maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a cooling tower with an internal wall cleaning function to solve the problem mentioned in the background art where there is no automatic internal wall cleaning device, and the internal wall of the tower is prone to the accumulation of dirt, algae and other impurities. To achieve the above objective, this utility model provides the following technical solution: A cooling tower with an internal wall cleaning function, including a tower body, a first partition fixedly connected to the inner wall of the tower body, a water separator fixedly connected below the first partition, a cleaning component rotatably connected below the water separator, a spray system fixedly connected inside the tower body below the cleaning component, a second partition fixedly connected to the inner wall of the tower body, a packing material bolted to the top of the second partition, the spray system located above the packing material, a reciprocating screw rotatably connected below the second partition, one end of the reciprocating screw penetrating through the through hole of an annular wall cleaner and threadedly connected to the through hole of the annular wall cleaner, and the other end of the reciprocating screw penetrating through the shaft of a sprocket and fixedly connected to it.

[0005] An air inlet pipe is provided on one side of the outer wall of the tower body, an exhaust port is provided on the top of the tower body, and a maintenance plate is bolted to the bottom of the tower body.

[0006] The cleaning assembly includes a drive gear and a driven gear. The drive gear and the driven gear are meshed together. A rocker arm is provided below the driven gear. One end of the rocker arm is fixedly connected to a shaft at the center of the driven gear. The other end of the rocker arm is rotatably connected to a scraper.

[0007] More preferably, a fan is rotatably connected to the top of the first partition, and through holes are distributed at the bottom of the first partition. The top of the tower body is conical, and the exhaust ports are fan-shaped and distributed at equal angles of 45° along the conical surface of the top of the tower body.

[0008] More preferably, the water separator is composed of several groups of C-shaped metal plates distributed at equal intervals and connected by bolts, and the C-shaped metal plates are distributed in such a way that their length fits into the circumference of the inner diameter of the tower.

[0009] More preferably, the driving gear and the driven gear are rotatably connected between the spray system and the dewatering device, and the scraper moves in a circular motion on the inner wall of the tower body via a rocker arm. One side of the scraper is tightly attached to the inner wall of the tower body, while the bottom of the scraper is slidably connected to the top of the second partition. The second partition is circular, with the top and bottom edges forming annular edging. The height of the top edging is greater than that of the bottom edging, and the bottom edging extends towards the center at an inclined angle. The second partition has a concave cavity inside, and the bottom wall of the concave cavity has a mesh-like perforated structure. The bottom of the packing is attached to the concave cavity of the second partition.

[0010] More preferably, the spraying system consists of pipes and high-pressure nozzles, with one end of the pipes penetrating the tower body and extending to the outside, and the high-pressure nozzles being evenly distributed above the packing material, with the number of high-pressure nozzles decreasing towards the edge of the packing material.

[0011] More preferably, the bottom of the second partition plate forms an independent cavity between itself and the bottom wall of the tower body, and the annular wall wiper forms a lifting structure in the cavity through a reciprocating screw. The reciprocating screw is symmetrically distributed along the axis of the annular wall wiper, and the corresponding sprockets below the reciprocating screw are connected by a chain. The sprockets are rotatably connected to the cavities corresponding to the bottom of the tower body and the inspection plate.

[0012] More preferably, the side of the annular wall wiper that is in contact with the inner wall of the tower and the side of the scraper that is in contact with the inner wall of the tower are both covered with elastic fiber material, and these elastic fiber materials have a trapezoidal protruding structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, the cooling tower is equipped with a cleaning component and an annular wall scraper. When the tower body needs cleaning and maintenance, the scraper moves in a circular motion on the inner wall of the tower body under the drive of the rocker arm through the rotation of the drive gear and the driven gear. At the same time, a set of reciprocating screws moves synchronously through the sprocket and chain, causing the annular wall scraper to move up and down in an independent cavity. The two sets of self-cleaning structures set for different areas reduce the frequency of manual entry into the tower for cleaning, thereby reducing labor costs and labor intensity.

[0015] In this invention, the side of the annular wall scraper that is in contact with the scraper and the inner wall of the tower is covered with elastic fiber material with a trapezoidal protrusion structure, which increases the contact pressure and friction with the dirt on the inner wall. During the movement, it can more effectively scrape the stubborn dirt, scale, algae and other impurities attached to the inner wall. Compared with the planar structure, it can more efficiently peel the dirt off the inner wall, ensuring thorough cleaning and effectively preventing the accumulation of dirt from affecting the heat exchange efficiency and service life of the cooling tower. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the tower body of this utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the annular wall-rubbing device of this utility model;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the second partition of this utility model.

[0021] In the diagram: 1. Tower body; 101. Air inlet pipe; 102. Exhaust port; 103. Inspection plate; 2. First baffle; 3. Water separator; 4. Cleaning assembly; 401. Drive gear; 402. Driven gear; 403. Rocker arm; 404. Scraper; 5. Spray system; 6. Second baffle; 7. Packing; 8. Reciprocating screw; 9. Annular wall wiper; 10. Sprocket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a cooling tower with an internal wall cleaning function, including a tower body 1, a first partition 2 fixedly connected to the inner wall of the tower body 1, a water separator 3 fixedly connected below the first partition 2, a cleaning component 4 rotatably connected below the water separator 3, a spray system 5 fixedly connected to the inner wall of the tower body 1 corresponding to the lower part of the cleaning component 4, a second partition 6 fixedly connected to the inner wall of the tower body 1, a packing 7 bolted to the top of the second partition 6, the spray system 5 located above the packing 7, a reciprocating screw 8 rotatably connected to the lower part of the second partition 6, one end of the reciprocating screw 8 penetrating through the through hole of an annular wall cleaner 9 and threadedly connected to the through hole of the annular wall cleaner 9, and the other end of the reciprocating screw 8 penetrating through the shaft of a sprocket 10 and fixedly connected to it.

[0024] An air inlet pipe 101 is provided on one side of the outer wall of the tower body 1, an exhaust port 102 is provided on the top of the tower body 1, and a maintenance plate 103 is connected to the bottom of the tower body 1 by bolts.

[0025] The cleaning component 4 includes a drive gear 401 and a driven gear 402. The drive gear 401 and the driven gear 402 are meshed and connected. A rocker arm 403 is provided below the driven gear 402. One end of the rocker arm 403 is fixedly connected to a shaft at the center of the driven gear 402, and the other end of the rocker arm 403 is rotatably connected to a scraper 404.

[0026] In this embodiment, as Figure 1 and Figure 2 As shown, a fan is rotatably connected to the top of the first partition 2, and through holes are distributed at the bottom of the first partition 2. The top of the tower body 1 is conical, and the exhaust port 102 is fan-shaped and distributed at 45° equidistant angles along the conical surface of the top of the tower body 1. The through holes at the bottom of the first partition 2 allow air to flow more evenly, avoiding local accumulation of air or the formation of dead air zones in the tower. This ensures that the heat exchange process is carried out evenly throughout the tower, improving the overall heat exchange effect and cooling quality. At the same time, it provides support for the fan. The conical structure at the top of the tower body 1 plays a good role in guiding the airflow, concentrating and guiding the rising hot and humid air to the exhaust port 102. The fan-shaped exhaust port 102, distributed at 45° equidistant angles, can both prevent dust and allow the air to be discharged to the outside more evenly and orderly through these fine holes.

[0027] In this embodiment, as Figure 2 and Figure 3As shown, the water separator 3 consists of several groups of C-shaped metal plates arranged at equal intervals and connected by bolts. The C-shaped metal plates are arranged such that their lengths fit snugly against the inner circumference of the tower body 1. The unique shape of the C-shaped metal plates effectively alters the trajectory of water droplets in the rising airflow. When air carrying water droplets flows past the C-shaped metal plates, the droplets impact the inner wall of the metal plates due to inertia, adhering to the surface and being intercepted. Once the water droplets accumulate to a certain extent, they drip back into the cooling tower under gravity, reducing the number of water droplets discharged with the air, lowering water loss, and improving water resource utilization. Its distribution maximizes coverage of the airflow channels inside the tower body 1, ensuring that all rising air passes through the water separator 3, thus improving the comprehensiveness and effectiveness of water removal.

[0028] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the driving gear 401 and driven gear 402 are rotatably connected between the spray system 5 and the dewatering device 3. The scraper 404 moves in a circular motion on the inner wall of the tower body 1 via the rocker arm 403. One side of the scraper 404 is tightly attached to the inner wall of the tower body 1, while the bottom of the scraper 404 is slidably connected to the top of the second partition 6. The second partition 6 is circular, with annular edging at the top and bottom edges. The height of the top edging is greater than that of the bottom edging, and the bottom edging extends towards the center at an inclined angle. The second partition 6 has a concave cavity with a grid-like perforated structure at the bottom wall. The bottom of the packing 7 is attached to the concave cavity of the second partition 6. One side of the scraper 404 is tightly attached to the inner wall of the tower body 1. It can effectively scrape away dirt, algae, scale and other impurities attached to the inner wall of the tower body 1. As the circular motion continues, it can completely cover the inner wall of the tower body 1, keep the inner wall clean, and prevent the accumulation of dirt from affecting the heat exchange efficiency and service life of the cooling tower. This automatic cleaning method reduces the frequency of manual entry into the tower for cleaning. The bottom of the scraper 404 is slidably connected to the top of the second partition 6, providing stable support for the circular motion of the scraper 404. The edge of the bottom of the second partition 6 extends at an inclined angle towards the center, which facilitates the smooth flow of cooled water into the independent cavity formed between the bottom of the second partition 6 and the inner bottom wall of the tower body 1. The grid-like hollow structure of the bottom wall of the concave cavity can ensure the smooth discharge of water.

[0029] In this embodiment, as Figure 2 and Figure 5As shown, the spray system 5 consists of pipes and high-pressure nozzles. One end of the pipes passes through the tower body 1 and extends to the outside. The high-pressure nozzles are evenly distributed above the packing 7. Near the edge of the packing 7, the number of high-pressure nozzles decreases. Because the shape of the packing 7 and the heat exchange conditions at the edge are relatively worse than those in the center, too many nozzles would cause excessive water flow at the edge, resulting in water overflowing without being processed by the packing 7. Reducing the number of nozzles at the edge can prevent excessive water flow in the edge area, making the water distribution in the entire packing 7 area more reasonable, further improving the uniformity and efficiency of heat exchange, and ensuring the stability of the overall performance of the cooling tower.

[0030] In this embodiment, as Figure 2 and Figure 4 As shown, an independent cavity is formed between the bottom of the second partition 6 and the inner bottom wall of the tower body 1. The annular wall-cleaning device 9 forms a lifting structure within this cavity via a reciprocating screw 8. The reciprocating screw 8 is symmetrically distributed along the axis of the annular wall-cleaning device 9. Simultaneously, the corresponding sprockets 10 below the reciprocating screw 8 are connected by chains. The sprockets 10 are rotatably connected to the cavities corresponding to the inspection plate 103 and the outer bottom of the tower body 1. The annular wall-cleaning device 9 forms a lifting structure within the independent cavity via the reciprocating screw 8, enabling it to move up and down along the inner wall of the tower body 1. During the lifting process, the annular wall-cleaning device... The ring-shaped wall cleaner 9 uses elastic fiber material with a trapezoidal protrusion structure distributed on the side that is in contact with the inner wall of the tower body 1 to thoroughly clean the inner wall of the tower body 1. It can remove dirt, impurities and microorganisms attached to the inner wall, preventing these substances from accumulating and affecting the heat exchange efficiency and service life of the cooling tower. The sprockets 10 are connected by chains, and the reciprocating screw 8 can rotate synchronously, ensuring that the movement of each part of the ring wall cleaner 9 is coordinated and consistent during the lifting and lowering process, avoiding problems such as jamming, tilting or shaking, and further improving the stability and reliability of the cleaning work.

[0031] In this embodiment, as Figure 2 As shown, elastic fiber material is distributed on the side of the annular wall scrubber 9 that is in contact with the inner wall of the tower body 1 and on the side of the scraper 404 that is in contact with the inner wall of the tower body 1. These elastic fiber materials have a trapezoidal protrusion structure. The trapezoidal protrusion structure can increase the contact pressure and friction between the elastic fiber material and the dirt on the inner wall of the tower body 1. When the annular wall scrubber 9 moves up and down and the scraper 404 moves in a circular motion, these protrusions can more effectively scrape the stubborn dirt, scale, algae and other impurities attached to the inner wall. Compared with the flat structure, it can more efficiently peel the dirt off the inner wall, thereby improving the thoroughness of cleaning.

[0032] The usage method and advantages of this utility model: The cooling tower with internal wall cleaning function operates as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, outside air first enters the interior of tower 1 through the air inlet pipe 101 on one side of the outer wall of tower 1. The pipe extending the spray system 5 to the outside of tower 1 is connected to the external heat load equipment. Hot water is transported to the spray system 5 through the pipe. The high-pressure nozzles spray the hot water evenly onto the packing 7. The hot water forms a water film on the surface of the packing 7, making full contact with the rising air. Heat is transferred to the air through evaporation and heat conduction, thereby lowering the water temperature. The fan rotating at the top of the first baffle 2 starts to work, accelerating the upward flow of air in the tower. The through holes distributed at the bottom of the first baffle 2 promote the heat exchange process between the air and the hot water. After heat exchange, the humid and hot air rises to the top of the tower body 1 and is discharged in an orderly and efficient manner through the exhaust port 102, reducing the pressure inside the tower body 1 and ensuring smooth air circulation. The water treated by the packing 7 passes through the grid-like perforated structure on the bottom wall of the concave cavity of the second partition 6 and is guided by the perimeter of the bottom of the second partition 6 to an independent cavity formed between the bottom of the second partition 6 and the inner bottom wall of the tower body 1. This cavity serves to collect the cooled water for subsequent recycling or discharge. The tower body 1 is also equipped with a drainage pipe corresponding to this cavity to facilitate the extraction of cooled water. During the heat exchange process, when the rising air... When water droplets carried by air pass through the water separator 3, the C-shaped metal plate blocks and collects the droplets, reducing the amount of water droplets discharged from the tower body 1 with the air, thus reducing water loss. The water then falls due to gravity. When the tower body 1 is not in use, the drive gear 401 in the cleaning assembly 4 starts to rotate under the drive of the servo motor, and the driven gear 402 rotates accordingly. Therefore, the rocker arm 403 rotates with the driven gear 402, causing the scraper 404 to make a circular motion on the inner wall of the tower body 1. During this circular motion, the elastic fiber material on the surface of the scraper 404 effectively scrapes away dirt and impurities from the inner wall of the tower body 1, thus cleaning the inner wall. Meanwhile, one set of reciprocating screws 8 rotates under the drive of a servo motor equipped with a waterproof box. Since the sprocket 10 is fixedly connected to the other end of the shaft of the reciprocating screw 8, and the sprockets 10 are connected by a chain, the two symmetrically distributed reciprocating screws 8 rotate synchronously. This causes the annular wall cleaner 9, which forms a spiral transmission structure with the reciprocating screw 8, to move up and down in the independent cavity formed by the bottom of the second partition 6 and the inner bottom wall of the tower body 1. The annular wall cleaner 9 uses the elastic fiber material with a trapezoidal protrusion structure on its outer wall to clean the inner wall of the tower body 1 during the lifting and lowering process, further ensuring the cleanliness of the inner wall of the tower body 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling tower with inner wall cleaning function, comprising a tower body (1), characterized in that: The first baffle (2) is fixedly connected to the inner wall of the tower body (1), a water remover (3) is fixedly connected below the first baffle (2), a cleaning assembly (4) is rotatably connected below the water remover (3), a spraying system (5) is fixedly connected to the inside of the tower body (1) below the cleaning assembly (4), a second baffle (6) is fixedly connected to the inner wall of the tower body (1), a filler (7) is connected to the top of the second baffle (6) through bolts, the spraying system (5) is above the filler (7), a reciprocating screw rod (8) is rotatably connected below the second baffle (6), one end of the reciprocating screw rod (8) penetrates through the through hole of the annular wall cleaner (9) and is threadedly connected with the through hole of the annular wall cleaner (9), and the other end of the reciprocating screw rod (8) penetrates through the shaft of the chain wheel (10) and is fixedly connected with the chain wheel (10). An air inlet pipe (101) is formed in one side of the outer wall of the tower body (1), an exhaust port (102) is formed at the top of the tower body (1), and a maintenance plate (103) is connected to the bottom of the tower body (1) through bolts. The cleaning assembly (4) comprises a driving gear (401) and a driven gear (402), the driving gear (401) is meshedly connected with the driven gear (402), a rocker (403) is arranged below the driven gear (402), one end of the rocker (403) is fixedly connected with the shaft rod at the shaft center of the driven gear (402), and the other end of the rocker (403) is rotatably connected with a scraper (404).

2. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The top of the first baffle (2) is rotatably connected with a fan, the bottom of the first baffle (2) is provided with through holes, the top of the tower body (1) is conical, and the exhaust port (102) is fan-shaped and is distributed at an angle of 45° along the conical surface of the top of the tower body (1).

3. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The water remover (3) is formed by a plurality of groups of C-shaped metal plates which are distributed at equal distances and are connected by bolts, and the C-shaped metal plates are distributed in a manner that their lengths are in contact with the circumferences of the inner diameters of the tower body (1).

4. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The driving gear (401) and the driven gear (402) are rotatably connected between the spraying system (5) and the water remover (3), the scraper (404) moves in a circular manner in the inner wall of the tower body (1) through the rocker (403), one side of the scraper (404) is closely attached to the inner wall of the tower body (1), the bottom of the scraper (404) is slidably connected to the top of the second baffle (6), the second baffle (6) is circular, the top and the bottom edges thereof are annular, the height of the top edge is greater than that of the bottom edge, the bottom edge extends to the center at an inclined angle, the second baffle (6) has a concave cavity therein, the bottom wall of the concave cavity is a grid-shaped hollow structure, and the bottom of the filler (7) is attached to the concave cavity of the second baffle (6).

5. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The spraying system (5) is composed of a pipeline and high-pressure nozzles, one end of the pipeline penetrates through the tower body (1) and extends to the outside, and the high-pressure nozzles are uniformly distributed above the filler (7), and the number of the high-pressure nozzles decreases in a decreasing manner near the edge of the filler (7).

6. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The bottom of the second partition plate (6) and the inner bottom wall of the tower body (1) form an independent cavity, and the annular wall scraper (9) constitutes a lifting structure in the cavity through the reciprocating lead screw (8), and the reciprocating lead screws (8) are distributed symmetrically along the axis of the annular wall scraper (9), and the corresponding chain wheels (10) below the reciprocating lead screws (8) are connected by a chain, and the chain wheels (10) are rotatably connected in the cavities corresponding to the maintenance plate (103) and the outer bottom of the tower body (1).

7. The cooling tower with the inner wall cleaning function according to claim 1, characterized in that: The side of the annular wall scraper (9) and the side of the scraper (404) which are attached to the inner wall of the tower body (1) are both distributed with elastic fiber materials, and these elastic fiber materials are in the form of trapezoidal protrusions.

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