Energy-saving spraying equipment for cooling tower

Abstract

The utility model provides energy-saving spraying equipment for a cooling tower, which comprises a first-stage filtering structure, a second-stage filtering structure and a spraying head structure, the second-stage filtering structure is respectively connected with the first-stage filtering structure and the spraying head structure, primary fine filtering is carried out on cooling water in a dynamic filtering mode through rotation of a rotary filtering plate, and then the cooling water is cooled. The scraping plate scrapes impurities attached to the rotary filtering plate along with rotation of the rotary filtering plate, the impurities fall into the storage box, and the risk that equipment parts are damaged due to impurity blockage is reduced; the rotating rod rotates under the impact of the to-be-cooled water subjected to secondary filtration to drive the blades to disturb the to-be-cooled water subjected to secondary filtration, so that the to-be-cooled water subjected to secondary filtration forms a spiral flowing path, a more uniform water distribution effect is realized, filler in the cooling tower is promoted to be in more sufficient contact with the to-be-cooled water, and the cooling effect of the cooling tower is improved. The heat exchange efficiency of the to-be-cooled water and the air is improved, the water temperature is reduced more quickly, and the cooling requirement of the cooling tower is met.

Description

Technical Field

[0001] This utility model relates to the field of industrial energy conservation technology, and in particular to an energy-saving spraying device for cooling towers. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and release it into the atmosphere to lower the water temperature. Its cooling mechanism utilizes the heat exchange between water and air to generate steam. The steam evaporates, carrying away heat through evaporation, convection, and radiation, thus dissipating waste heat generated in industrial processes or refrigeration and air conditioning systems to lower the water temperature and ensure the normal operation of the system. The device is typically cylindrical, hence the name cooling tower. During the operation of a cooling tower, the spray heads are a key component, responsible for evenly spraying water onto the packing material to maximize the contact area between water and air, promote water evaporation, and enhance the cooling effect.

[0003] However, traditional spray head designs have many shortcomings and lack optimization of the spray head itself, severely impacting the cooling efficiency and energy-saving effects of cooling towers. Traditional spray heads lack an effective water flow dispersion mechanism, resulting in extremely uneven water distribution across the packing material. This uneven water distribution leads to localized areas of the packing material failing to fully utilize its cooling efficiency due to water shortage, while other areas may experience water accumulation due to excessive water. Water accumulation not only further obstructs airflow and reduces the cooling tower's heat dissipation efficiency but can also corrode the packing material, shortening its lifespan. Ultimately, this significantly reduces the overall cooling capacity of the cooling tower, failing to meet production demands. Especially during high-temperature seasons or under high-load operating conditions, it can cause frequent equipment failures and shutdowns due to overheating, affecting production schedules and product quality, and increasing operating costs for the enterprise.

[0004] Furthermore, traditional spray heads are not sufficiently effective at filtering the water entering them. In practical applications, the influent to cooling towers often contains various fine impurities, such as particulate matter and microorganisms. Existing solutions typically only install simple screens or filters at the main influent pipe of the cooling tower, which is insufficient to effectively remove these fine impurities. However, with long-term operation of the cooling tower, if these fine impurities are not effectively removed, they can easily enter the spray head with the water flow and accumulate in the nozzles and inner walls of the pipes. On the one hand, the accumulation of impurities gradually clogs the outlet of the spray head, altering the spray pattern and further deteriorating the uniformity of water distribution. On the other hand, clogging also increases the pressure loss of the spray head, necessitating an increase in the power of the water pump to maintain a certain water flow, thereby increasing energy consumption and further affecting the energy-saving effect and overall performance of the cooling tower. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an energy-saving spraying device for cooling towers, which solves the technical problems of uneven water flow dispersion, poor filtration leading to uneven water distribution, clogging and increased energy consumption caused by traditional cooling tower spray heads.

[0006] To achieve the above objectives, this utility model provides an energy-saving spraying device for cooling towers, comprising: a primary filtration structure, a secondary filtration structure, and a spray head structure, wherein the secondary filtration structure is connected to the primary filtration structure and the spray head structure respectively.

[0007] The primary filtration structure includes a rotating filter plate, a scraper, a drive unit, and a storage box with a top opening; the rotating filter plate is connected to the drive unit; one end of the scraper is rotatably disposed on the side edge of the rotating filter plate, and the other end of the scraper points towards the surface of the rotating filter plate and is in close contact with the surface of the rotating filter plate; the storage box is disposed below the rotating filter plate, and the storage box is connected to one end of the scraper.

[0008] The secondary filtration structure includes a first water pipe and a triple-layer filter plate disposed within the first water pipe; the bottom of the rotating filter plate is connected to the top of the first water pipe.

[0009] The spray head structure includes a rotating rod and blades disposed on the rotating rod, one end of the rotating rod being connected to the bottom of the first water pipe;

[0010] Cooling water enters the primary filtration structure, and the driving component drives the rotating filter plate to rotate continuously, so that the cooling water flows into the secondary filtration structure after primary filtration. The scraper swings with the continuous rotation of the rotating filter plate to scrape off impurities attached to the rotating filter plate. The impurities scraped off by the scraper fall into the storage box below the rotating filter plate as it continues to rotate. After primary filtration, the cooling water undergoes secondary filtration by the triple-layer filter plate in the first water pipe and then flows into the spray head structure. The rotating rod rotates under the impact of the secondary filtered cooling water, causing the blades to disturb the secondary filtered cooling water, so that the secondary filtered cooling water forms a spiral flow path, so that the secondary filtered cooling water is evenly dispersed before flowing out.

[0011] As a preferred embodiment, the bottom of the storage box is provided with a first water outlet and a second water pipe, one end of the second water pipe is connected to the first water outlet, and the other end of the second water pipe is connected to the first water pipe; a round-mouth filter plate is provided at the connection between the first water outlet and one end of the second water pipe.

[0012] As a preferred embodiment, the system also includes a support column, one end of which is rotatably connected to the bottom of the rotating filter plate, and the other end of which is fixed to the spray head structure.

[0013] In a preferred embodiment, the support column is an internally continuous cylinder, and the driving component is disposed within the support column.

[0014] As a preferred embodiment, the system also includes a support platform, which is disposed on the pipe body of the first water pipe; the support platform has a cavity, and the rotating filter plate, scraper, and storage box are all disposed in the cavity.

[0015] As a preferred embodiment, the bottom of the storage box is connected to the inner wall of the cavity via a short post.

[0016] As a preferred embodiment, the storage box is connected to one end of the scraper via a short rod.

[0017] As a preferred embodiment, the spray head structure further includes a water inlet, an air inlet, and a second water outlet. One end of the rotating rod is connected to the bottom of the first water pipe through the water inlet, and the other end of the rotating rod is connected to the second water outlet. The air inlet is connected to the second water outlet.

[0018] As a preferred embodiment, a third water pipe is also included, which is connected to the top of the rotating filter plate.

[0019] As a preferred embodiment, the inner diameter of the first water pipe is larger than the inner diameter of the third water pipe.

[0020] As described above, the energy-saving spraying device for cooling towers disclosed in this utility model has the following beneficial effects: The water to be cooled first enters the primary filtration structure. Driven by a driving component, the rotating filter plate continuously rotates. During this rotation, the water undergoes preliminary fine filtration. This dynamic filtration method effectively captures fine impurities in the water. A scraper oscillates as the rotating filter plate continues to rotate, scraping away impurities adhering to it. The scraped impurities fall into a storage box below the rotating filter plate, preventing blockage due to excessive impurity accumulation. This maximizes filtration performance and effectively prevents impurities from entering the first water pipe, achieving effective collection and isolation of impurities. This reduces the risk of equipment component damage due to blockage, extends equipment lifespan, and shortens the cleaning and replacement cycle, thereby reducing maintenance costs, downtime, and energy consumption. After primary filtration by the rotating filter plate, the water flows into the first water pipe and undergoes secondary filtration by a triple-layer filter plate, further removing impurities and preventing blockage. When the filtered water flows into the spray head structure, the rotating rod rotates under the impact of the filtered water, causing the blades to disturb the filtered water and create a spiral flow path. The rotating water flow evenly disperses the water before it flows out, achieving a more uniform water distribution effect. This allows the packing material in the cooling tower to come into more complete contact with the water, improving the heat exchange efficiency between the water and the air, and reducing the water temperature more quickly to meet the cooling tower's cooling requirements. Attached Figure Description

[0021] Figure 1 The diagram shown is a schematic cross-sectional view of the energy-saving spraying device for cooling towers in this invention.

[0022] Figure 2 The diagram shown is a partial structural schematic of the energy-saving spraying device for cooling towers in this utility model.

[0023] Figure 3 The image shown is a three-dimensional schematic diagram of the energy-saving spraying device used in the cooling tower according to this utility model.

[0024] Figure 4 The image shown is a front view of the energy-saving spraying device for cooling towers according to this invention.

[0025] Figure 5 The diagram shown is a partial cross-sectional view of the energy-saving spraying device for cooling towers according to this invention.

[0026] Figure 6 This is another partial cross-sectional schematic diagram of the energy-saving spraying device for cooling towers in this utility model.

[0027] Component designation explanation

[0028] 1. Primary filtration structure

[0029] 11 Rotary filter plate

[0030] 12 scrapers

[0031] 13. Drive components

[0032] 14 Storage Boxes

[0033] 141 Second water pipe

[0034] 142 Round-mouth filter plate

[0035] 2. Two-stage filtration structure

[0036] 21 First water pipe

[0037] 22 Triple Filter Plate

[0038] 3. Spray head structure

[0039] 31 Rotating rod

[0040] 32 Inlet

[0041] 33 Air Inlet

[0042] 34 Second outlet

[0043] 4 Support Columns

[0044] 5 Support Platform

[0045] 6 Short columns

[0046] 7. Short Pole

[0047] 8. Third water pipe Detailed Implementation

[0048] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0049] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0053] like Figure 1-6As shown, this utility model provides an energy-saving spraying device for cooling towers, including: a primary filtration structure 1, a secondary filtration structure 2, and a spray head structure 3, wherein the secondary filtration structure 2 is connected to the primary filtration structure 1 and the spray head structure 3 respectively.

[0054] The primary filtration structure 1 includes a rotating filter plate 11, a scraper 12, a drive unit 13, and a storage box 14 with a top opening; the rotating filter plate 11 is connected to the drive unit 13; one end of the scraper 12 is rotatably disposed on the side edge of the rotating filter plate 11, and the other end of the scraper 12 points towards the surface of the rotating filter plate 11 and is in close contact with the surface of the rotating filter plate 11; the storage box 14 is disposed below the rotating filter plate 11, and the storage box 14 is connected to one end of the scraper 12.

[0055] The secondary filtration structure 2 includes a first water pipe 21 and a triple-layer filter plate 22 disposed within the first water pipe 21; the bottom of the rotating filter plate 11 is connected to the top of the first water pipe 21.

[0056] The spray head structure 3 includes a rotating rod 31 and blades disposed on the rotating rod 31, one end of the rotating rod 31 being connected to the bottom of the first water pipe 21;

[0057] Cooling water enters the primary filtration structure 1. The driving component 13 drives the rotating filter plate 11 to rotate continuously, so that the cooling water flows into the secondary filtration structure 2 after primary filtration. The scraper 12 swings with the continuous rotation of the rotating filter plate 11 to scrape off impurities attached to the rotating filter plate 11. The impurities scraped off by the scraper 12 fall into the storage box 14 below the rotating filter plate 11 as it continues to rotate. After primary filtration, the cooling water is filtered a second time by the triple-layer filter plate 22 in the first water pipe 21 and then flows into the spray head structure 3. The rotating rod 31 rotates under the impact of the secondary filtered cooling water, causing the blades to disturb the secondary filtered cooling water, so that the secondary filtered cooling water forms a spiral flow path, so that the secondary filtered cooling water is evenly dispersed and flows out.

[0058] This utility model discloses an energy-saving spraying device for cooling towers. The water to be cooled first enters the primary filtration structure 1. Driven by the drive component 13, the rotating filter plate 11 rotates continuously. During the rotation, the water to be cooled undergoes preliminary fine filtration. The dynamic filtration method can more effectively capture small impurities in the water to be cooled. The scraper 12 swings with the continuous rotation of the rotating filter plate 11 to scrape off the impurities attached to the rotating filter plate 11. The impurities scraped off by the scraper 12 fall into the storage box 14 located below the rotating filter plate 11 as it continues to rotate, preventing the rotating filter plate 11 from being blocked due to excessive accumulation of impurities. This maximizes the filtration performance and effectively prevents impurities from entering the first water pipe 21, achieving effective collection and isolation of impurities. This reduces the risk of equipment component damage due to impurity blockage, extends the service life of the equipment, and reduces the cycle of cleaning and replacing parts, thereby reducing equipment maintenance costs, downtime, and energy consumption. After primary filtration by the rotating filter plate 11, the water to be cooled flows into the first water pipe 21. It then undergoes secondary filtration by the triple-layer filter plate 22, further removing impurities and preventing equipment blockage. When the secondary-filtered water flows into the spray head structure 3, the rotating rod 31 rotates under the impact of the filtered water, causing the blades to agitate the water and create a spiral flow path. This rotating flow ensures the water is evenly dispersed before flowing out, achieving a more uniform water distribution effect. This allows the packing material in the cooling tower to come into more thorough contact with the water, improving the heat exchange efficiency between the water and air, and rapidly reducing the water temperature to meet the cooling tower's cooling requirements.

[0059] In this embodiment, as Figure 1 , 2 As shown in Figure 5, the bottom of the storage box 14 is provided with a first water outlet and a second water pipe 141. One end of the second water pipe 141 is connected to the first water outlet, and the other end of the second water pipe 141 is connected to the first water pipe 21. A round-mouth filter plate 142 is provided at the connection between the first water outlet and one end of the second water pipe 141.

[0060] In this embodiment, as Figure 1 , 2As shown, the rotary filter plate 11 is typically designed with a porous or sieve-like structure to separate solid particles and liquids. When the water to be cooled passes through the rotary filter plate 11, solid particles are trapped on the rotary filter plate 11, while the filtered water flows into the first water pipe 21 through the pores. One end of the scraper 12 is rotatably mounted on the side edge of the rotary filter plate 11, allowing the scraper 12 to swing or slide accordingly as the rotary filter plate 11 rotates. The other end of the scraper 12 points towards the surface of the rotary filter plate 11 and is in close contact with the surface of the rotary filter plate 11, used to scrape off impurities or residues from the surface of the rotary filter plate 11 as it rotates. A storage box 14 is located below the rotary filter plate 11 to collect the impurities scraped off the surface of the rotary filter plate 11 by the scraper 12. The other end of the second water pipe 141 is inserted into the first water pipe 21. During the rotation of the rotating filter plate 11, some of the water to be cooled adheres to the rotating filter plate 11 due to centrifugal force and is scraped into the storage box 14 by the scraper 12. The water scraped into the storage box 14 is filtered by the round-mouth filter plate 142 and then enters the first water pipe 21 through the second water pipe 141 to join the main water flow. The structure and principle of the round-mouth filter plate 142 and the rotating filter plate 11 are similar, and will not be described in detail here.

[0061] In this embodiment, as Figure 1 , 6 As shown, the triple-layer filter plate 22 has a circular top surface and stepped sides that do not overlap. When the water to be cooled flows through the triple-layer filter plate 22, this structural design allows impurities of different sizes to be intercepted at different levels of the filter plate, achieving further filtration of the water to be cooled and more effectively removing various impurities from the water to be cooled.

[0062] In this embodiment, as Figure 2-6 As shown, it also includes a support column 4, one end of which is rotatably connected to the bottom of the rotating filter plate 11, and the other end of which is fixed to the spray head structure 3. The support column 4 is an internally through cylinder, and the driving component 13 is disposed inside the support column 4. The driving component 13 is a drive motor, which is fixedly connected to the rotating filter plate 11. The connection between the rotating filter plate 11 and the drive motor is solid. While the drive motor drives the rotating filter plate 11 to rotate, it can prevent the drive motor from contacting the water to be cooled, thus preventing the drive motor from short-circuiting, being damaged, or experiencing performance degradation.

[0063] In this embodiment, as Figure 1 , 3 As shown in Figure 4, it also includes a support platform 5, which is set on the pipe body of the first water pipe 21; the support platform 5 is provided with a cavity, and the rotating filter plate 11, scraper 12 and storage box 14 are all set in the cavity.

[0064] In this embodiment, as Figure 1 As shown, the bottom of the storage box 14 is connected to the inner wall of the cavity via a short post 6.

[0065] In this embodiment, as Figure 2 As shown, the storage box 14 is connected to one end of the scraper 12 via a short rod 7. A first through hole is provided at the bottom of the support platform 5, through which the top of the first water pipe 21 passes and connects to the bottom of the rotating filter plate 11. A second through hole is also provided at the bottom of the support platform 5, through which one end of the support column 4 passes and rotatably connects to the bottom of the rotating filter plate 11.

[0066] In this embodiment, as Figure 1 , 2 As shown, the bottom of the storage box 14 is firmly fixed to the inner wall of the cavity of the support platform 5 by a short column 6. The support platform 5 is set on the pipe body of the first water pipe 21. One end of the scraper 12 is connected to the storage box 14 by a short rod 7, which ensures that the scraper 12 can scrape impurities into the storage box 14 when the rotating filter plate 11 rotates. At the same time, the storage box 14 remains stationary and does not rotate with the rotating filter plate 11, so as to stably collect impurities.

[0067] In this embodiment, as Figure 1 As shown, the spray head structure 3 also includes a water inlet 32, an air inlet 33, and a second water outlet 34. One end of the rotating rod 31 is connected to the bottom of the first water pipe 21 through the water inlet 32, and the other end of the rotating rod 31 is connected to the second water outlet 34. The air inlet 33 is connected to the second water outlet 34.

[0068] In this embodiment, as Figure 1 As shown, the water to be cooled after secondary filtration flows into the spray head structure 3 through the inlet 32. The rotating rod 31 rotates under the impact of the water to be cooled after secondary filtration, causing the blades to disturb the water and form a spiral flow path. The rotating water flow evenly disperses the water to be cooled to the second outlet 34. At the same time, the evenly dispersed water to be cooled is fully mixed with the compressed air entering through the air inlet 33. The energy of the compressed air is transferred to the water to be cooled. Due to the high pressure and speed of the compressed air, it can break the water to be cooled into smaller particles during the mixing process, further achieving a more uniform water distribution effect. This allows the packing material in the cooling tower to come into more full contact with the water to be cooled, improving the heat exchange efficiency between the water to be cooled and the air, and reducing the water temperature more quickly to meet the cooling requirements of the cooling tower.

[0069] In this embodiment, as Figure 1-5As shown, it also includes a third water pipe 8, which is connected to the top of the rotating filter plate 11. A third through hole is provided at the top of the support platform 5, through which the third water pipe 8 passes and connects to the top of the rotating filter plate 11. The top of the rotating filter plate 11 is in close contact with the third water pipe 8 near the first water pipe 21; the first water pipe 21 and the third water pipe 8 are not connected. The third water pipe 8 is connected to the inlet pipe of the cooling tower, so that the water to be cooled enters the primary filtration structure 1, the secondary filtration structure 2, and the spray head structure 3 sequentially through the third water pipe 8.

[0070] In this embodiment, as Figure 1-4 As shown, the inner diameter of the first water pipe 21 is larger than that of the third water pipe 8, which increases the cross-sectional area of ​​the water flow and reduces the water flow velocity. This helps the triple-layer filter plate 22 in the first water pipe 21 to better trap impurities, reduces the scouring and wear on the triple-layer filter plate 22, and thus extends the service life of the triple-layer filter plate 22.

[0071] In summary, the energy-saving spraying device for cooling towers of this invention has the following advantages:

[0072] (1) The rotating filter plate 11 can more effectively capture fine impurities in the water to be cooled through dynamic filtration. The scraper 12 can scrape off the impurities attached to the rotating filter plate 11 as the rotating filter plate 11 rotates. The impurities scraped off by the scraper 12 fall into the storage box 14 located below it as the rotating filter plate 11 continues to rotate, preventing the rotating filter plate 11 from being blocked due to excessive accumulation of impurities, reducing the risk of equipment component damage due to impurity blockage, ensuring the stability of its filtration performance, avoiding impurities from being mixed into the water flow again, realizing the effective collection and isolation of impurities, extending the service life of the equipment and the cycle of cleaning and replacing parts, reducing the maintenance cost, downtime and energy consumption of the equipment.

[0073] (2) The triple filter plate 22 has a circular top surface and a stepped side surface that does not overlap. When the water to be cooled flows through the triple filter plate 22 after primary filtration, this structural design allows impurities of different sizes to be intercepted at different levels of the filter plate, achieving further filtration of the water to be cooled and more effectively removing various impurities from the water to be cooled.

[0074] (3) The spray head structure 3 is equipped with a rotating rod 31 with blades. When the water to be cooled after secondary filtration flows into the spray head structure 3, the rotating rod 31 rotates under the impact of the water to be cooled after secondary filtration, which drives the blades to disturb the water to be cooled after secondary filtration, so that the water to be cooled after secondary filtration forms a spiral flow path. The rotating water flow state makes the water to be cooled evenly dispersed to the second outlet 34. At the same time, the evenly dispersed water to be cooled is fully mixed with the compressed air entering through the air inlet 33. The energy of the compressed air is transferred to the water to be cooled. Since the compressed air has high pressure and speed, it can break the water to be cooled into smaller particles during the mixing process with the water to be cooled, further achieving a more uniform water distribution effect, prompting the packing in the cooling tower to contact the water to be cooled more fully, improving the heat exchange efficiency between the water to be cooled and the air, and reducing the water temperature more quickly to meet the cooling needs of the cooling tower.

[0075] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0076] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An energy-saving spraying device for cooling towers, characterized in that, include: The system includes a primary filtration structure (1), a secondary filtration structure (2), and a spray head structure (3), wherein the secondary filtration structure (2) is connected to the primary filtration structure (1) and the spray head structure (3), respectively. The primary filtration structure (1) includes a rotating filter plate (11), a scraper (12), a drive unit (13), and a storage box (14) with a top opening; the rotating filter plate (11) is connected to the drive unit (13); one end of the scraper (12) is rotatably disposed on the side edge of the rotating filter plate (11), and the other end of the scraper (12) points to the surface of the rotating filter plate (11) and is in close contact with the surface of the rotating filter plate (11); the storage box (14) is disposed below the rotating filter plate (11), and the storage box (14) is connected to one end of the scraper (12); The secondary filtration structure (2) includes a first water pipe (21) and a triple-layer filter plate (22) disposed in the first water pipe (21); the bottom of the rotating filter plate (11) is connected to the top of the first water pipe (21); The spray head structure (3) includes a rotating rod (31) and blades disposed on the rotating rod (31), one end of the rotating rod (31) being connected to the bottom of the first water pipe (21); The cooling water enters the primary filtration structure (1), and the driving component (13) drives the rotating filter plate (11) to rotate continuously so that the cooling water is filtered once and then flows into the secondary filtration structure (2). The scraper (12) swings as the rotating filter plate (11) rotates continuously to scrape off the impurities attached to the rotating filter plate (11). The impurities scraped off by the scraper (12) fall into the storage box (14) below the rotating filter plate (11) as the rotating filter plate (11) rotates continuously. After the cooling water has been filtered once, it is filtered twice by the triple filter plate (22) in the first water pipe (21) and then flows into the spray head structure (3). The rotating rod (31) rotates under the impact of the cooling water after the second filtration, which drives the blades to disturb the cooling water after the second filtration, so that the cooling water after the second filtration forms a spiral flow path, so that the cooling water after the second filtration is evenly dispersed and flows out.

2. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, The bottom of the storage box (14) is provided with a first water outlet and a second water pipe (141). One end of the second water pipe (141) is connected to the first water outlet, and the other end of the second water pipe (141) is connected to the first water pipe (21). A round-mouth filter plate (142) is provided at the connection between the first water outlet and one end of the second water pipe (141).

3. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, It also includes a support column (4), one end of which is rotatably connected to the bottom of the rotating filter plate (11), and the other end of which is fixed to the spray head structure (3).

4. The energy-saving spraying device for cooling towers according to claim 3, characterized in that, The support column (4) is a cylindrical body with an internal through-hole, and the driving component (13) is disposed inside the support column (4).

5. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, It also includes a support platform (5), which is set on the pipe body of the first water pipe (21); the support platform (5) has a cavity, and the rotating filter plate (11), scraper (12) and storage box (14) are all set in the cavity.

6. The energy-saving spraying device for cooling towers according to claim 5, characterized in that, The bottom of the storage box (14) is connected to the inner wall of the cavity via a short post (6).

7. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, The storage box (14) is connected to one end of the scraper (12) via a short rod (7).

8. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, The spray head structure (3) further includes a water inlet (32), an air inlet (33), and a second water outlet (34). One end of the rotating rod (31) is connected to the bottom of the first water pipe (21) through the water inlet (32), and the other end of the rotating rod (31) is connected to the second water outlet (34). The air inlet (33) is connected to the second water outlet (34).

9. The energy-saving spraying device for cooling towers according to claim 1, characterized in that, It also includes a third water pipe (8), which is connected to the top of the rotating filter plate (11).

10. The energy-saving spraying device for cooling towers according to claim 9, characterized in that, The inner diameter of the first water pipe (21) is larger than the inner diameter of the third water pipe (8).

Images