A nozzle for a counterflow cooling tower

Abstract

The utility model discloses a kind of shower nozzle of counterflow cooling tower, the shower nozzle of this counterflow cooling tower includes water inlet component for introducing cooling water, water spraying component for rotating water spraying, and splash component for receiving water flow;The bearing for supporting water spraying component rotation is equipped in the water inlet component, the water spraying component is rotatably connected with the bearing, and the water spraying structure that can be driven to rotate around bearing by water flow impact is equipped on the water spraying component;The splash component is detachably cooperated with the water spraying component, and the water flow structure for center area water distribution and the splash guide structure for changing water flow angle are equipped on the splash component. The utility model provides a kind of shower nozzle of counterflow cooling tower effectively solves the hollow phenomenon below shower nozzle, ensures the water distribution uniformity, consistency of tower inner padding and improves the high water film rate of padding.

Description

Technical Field

[0001] This utility model belongs to the field of nozzle technology for counterflow cooling towers, specifically, it relates to a nozzle for a counterflow cooling tower. Background Technology

[0002] In industrial cooling systems, square counter-flow cooling towers are key equipment for heat dissipation and ensuring stable operation of production processes. The nozzles, as the core component for water distribution within the cooling tower, directly determine the air-water heat exchange efficiency of the cooling tower. Currently, the nozzles used in square counter-flow cooling towers on the market mainly include three-splash nozzles, single-splash nozzles, and some rotating nozzles.

[0003] While these nozzles can spray water around themselves during the spraying process, dead zones exist, resulting in varying degrees of blank areas in their spray coverage. This directly leads to uneven water distribution to the cooling tower packing below the nozzles, with some areas experiencing concentrated and excessive water flow, while others have sparse and insufficient water flow, or even areas completely without water coverage. In areas with excessive water, the cooling water stays on the packing surface for too short a time, failing to fully exchange heat with the air before flowing directly back to the collection tank, resulting in insufficient heat exchange. In areas with insufficient water or no water coverage, the effective heat exchange area of ​​the packing is severely wasted, preventing it from participating in the air-water heat exchange process.

[0004] The uneven water distribution to the packing material further leads to a significant decrease in the overall heat exchange efficiency of the cooling tower, making it difficult for the cooled water temperature to reach the expected target value. Substandard cooling water temperature directly affects the operation of downstream equipment requiring cooling: on the one hand, equipment such as central air conditioning units need to increase energy consumption to compensate for insufficient cooling in order to maintain normal operating temperatures, resulting in increased operating costs; on the other hand, equipment with strict process requirements for cooling temperature, such as air compressors and injection molding machines, may fail to meet production process needs due to excessive cooling water temperature, thereby affecting product quality or causing production interruptions. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a nozzle for a counterflow cooling tower.

[0006] Three-splash nozzles: The water spray dead zone is located in the center of the nozzle, specifically a circular area with a radius of about 8-12cm. The cooling tower packing in this area is completely uncovered by water flow and is a complete water spray blank area.

[0007] Single-splash nozzle: The water spray dead zone is a ring-shaped area 30-40cm away from the center of the nozzle. The water flow coverage in this ring-shaped area is extremely low (only 30%), which cannot meet the requirements of uniform water distribution of the filler. It is a functional water spray dead zone (the water flow coverage is far lower than the normal water distribution requirements).

[0008] Traditional rotary sprinklers: The dead zone of water spray is distributed in a fan shape with no fixed radius range. Its area accounts for 15%-20% of the total spray area of ​​the sprinkler. This dead zone is caused by the eccentricity of the sprinkler rotation (the axis shifts during rotation). There is no effective water flow to cover the filler in the fan-shaped area.

[0009] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0010] The system comprises an inlet assembly for introducing cooling water, a water-spreading assembly for rotating and distributing water, and a splashing assembly for receiving water flow. The inlet assembly contains a bearing to support the rotation of the water-spreading assembly. The water-spreading assembly is rotatably connected to the bearing, and has a water-spreading structure that can be driven to rotate around the bearing by the impact of water flow. The splashing assembly is detachably connected to the water-spreading assembly, and has a water-passing structure for distributing water in the central area and a splashing guide structure for changing the water flow angle. When cooling water enters the water-spreading assembly through the inlet assembly, part of the water flow impacts the water-spreading structure, driving the water-spreading assembly to rotate, while part of the water flow falls into the splashing assembly and flows out through the water-passing structure.

[0011] This invention addresses the problems of existing spray nozzles, such as water splashing dead zones, uneven water distribution to cooling tower packing, and low heat exchange efficiency, by achieving triple optimization:

[0012] The water distribution component is connected by a bearing and rotates under the impact of water flow. It uses centrifugal force to cover the area around the nozzle and avoids gaps in the water distribution around the nozzle.

[0013] The water-spraying component's water-passing structure directly covers the central area, filling the dead corner where there is no water in the center of the traditional nozzle, achieving full-range coverage of "peripheral rotating water spraying + central water-passing distribution", and completely solving the problem of uneven water distribution to the filler.

[0014] The splashing and water-spraying components are detachable and can be used together, eliminating the need to completely disassemble the nozzles for later maintenance. This reduces maintenance difficulty and aligns with the core advantages of "simple structure and convenient maintenance" mentioned in the document. It also provides convenience for subsequent component replacement or cleaning.

[0015] Preferably, the water inlet assembly includes a water inlet pipe, a bracket fixed inside the water inlet pipe, and a baffle plate fixed outside the water inlet pipe; the bracket includes at least two upright plates and a ring, one end of the upright plate is fixedly connected to the inner wall of the water inlet pipe, and the other end is fixedly connected to the ring, the bearing is fixedly installed in the central hole of the ring, and a gap is formed between adjacent upright plates to allow water to flow through.

[0016] In this invention, the combination of the upright plate and the ring of the bracket can not only stably fix the bearing and ensure smooth rotation of the water distribution component, but also allow water to flow through the gap between adjacent upright plates, avoiding insufficient water distribution caused by the bracket blocking the water flow. The baffle plate is fixed on the outside of the water inlet pipe, which can prevent the cooling water from flowing back along the outer wall of the water inlet pipe, reduce water waste, ensure that more cooling water is used for water distribution in the packing, and improve water resource utilization.

[0017] Preferably, the water-spraying assembly includes a fixed plate, a hoisting support column located in the middle of the fixed plate, and water-spraying fins located at the bottom of the fixed plate; the end of the hoisting support column away from the fixed plate is rotatably engaged with the inner ring of the bearing, and the outer wall of the hoisting support column is provided with external threads; the fixed plate has multiple connecting ports for water to flow into the splashing assembly, and the water-spraying fins are the water-spraying structure, and the water-spraying fins are arc-shaped and equidistantly distributed along the circumference of the fixed plate.

[0018] In this invention, the arc-shaped water-spreading fins, which are equidistantly distributed along the circumference of the fixed plate, are subjected to uniform force when impacted by water flow. This prevents the water-spreading component from eccentrically swaying during rotation, ensuring consistent range and intensity of centrifugal water spreading and more uniform water distribution on the periphery. The connecting port on the fixed plate can smoothly guide some water flow to the splashing component, without affecting the rotation drive of the water-spreading fins, and can provide sufficient water flow for the central water distribution, achieving coordinated "peripheral-central" water distribution.

[0019] Preferably, the splashing component and the water dispensing component are detachably connected via a lifting device. The lifting device includes multiple lifting buckles on the top of the splashing component and a slot on the fixing plate of the water dispensing component. Each lifting buckle has two elastic pieces at its end, and the top of each elastic piece has a protruding end with a guide slope. The protruding end can deform the elastic piece through the slot by pressing it against the slot. After the elastic piece is reset, the bottom of the protruding end abuts against the side wall of the slot.

[0020] In this utility model, the "elastic sheet + protruding end with guide slope" structure of the hoisting buckle requires no tools during assembly. The elastic sheet can be deformed and pass through the slot simply by being guided by the slope, making disassembly and assembly convenient and greatly shortening maintenance time. After the elastic sheet is reset, the bottom of the protruding end abuts against the side wall of the slot, forming a firm snap-fit ​​fixation. This prevents the two from separating due to centrifugal force when the water distribution component rotates, ensuring the stability of the component's fit and ensuring that the water distribution process is uninterrupted.

[0021] Preferably, the splashing assembly includes a splashing plate, the water passage structure is a plurality of water outlets that pass through the splashing plate, and the splashing guiding structure is a plurality of splashing guide strips fixed to the top of the splashing plate; each of the splashing guide strips is provided with a splashing guiding slope for changing the direction of water splashing.

[0022] In this invention, multiple drain holes on the splash plate can disperse the received water flow to the central area, avoiding the problem of "concentrated water flow or no water" in the center of the traditional nozzle, and ensuring that the filler in the central area is evenly watered; the splash guide slope of the splash guide strip can change the direction of water flow, expand the splash range in the central area, and at the same time avoid the local water excess caused by the water flow falling directly vertically, further improving the uniformity of water distribution in the central area, forming a seamless connection with the peripheral water distribution of the water distribution component, and completely eliminating water distribution dead corners.

[0023] Preferably, there are at least two water-spraying fins, and the included angle between two adjacent water-spraying fins is equal; the diameter of the fixed disk is greater than the maximum outer diameter of the water-spraying assembly.

[0024] In this invention, at least two equidistantly distributed water-spreading fins ensure that the water-spreading component is subjected to balanced forces during rotation, avoiding rotational eccentricity caused by insufficient number or uneven distribution of fins, and ensuring a stable and uniform peripheral water-spreading range. The diameter of the fixed plate is larger than the maximum outer diameter of the splashing component, allowing the rotating water-spreading range of the water-spreading fins to completely cover the peripheral area of ​​the splashing component, avoiding gaps at the junction of "peripheral water-spreading" and "central water distribution", further eliminating water distribution dead angles and improving the overall water uniformity of the cooling tower packing.

[0025] Preferably, the bracket has three upright plates, which are evenly distributed along the circumference of the ring; the water inlet pipe, the bracket, and the baffle plate are integrally injection molded structures, and the diameter of the baffle plate is larger than the outer diameter of the water inlet pipe.

[0026] In this invention, three vertical plates evenly distributed along the circumference of the ring provide more stable support for the ring and bearings compared to fewer plates, preventing bearing wobbling during water distribution component rotation and ensuring rotational accuracy. The water inlet pipe, bracket, and baffle plate are integrally injection molded, reducing assembly errors and increasing overall structural strength, making components less prone to loosening due to water flow impact or long-term use, thus extending the nozzle's service life. The baffle plate's diameter is larger than the water inlet pipe's outer diameter, more comprehensively blocking water flow back along the water inlet pipe's outer wall, preventing backflow from affecting other cooling tower components or wasting water resources, further improving the nozzle's reliability.

[0027] Compared with the prior art, the advantages of this utility model include:

[0028] (1) The nozzle of the counter-flow cooling tower provided by this utility model can achieve uniform water distribution throughout the entire range of the cooling tower packing, completely eliminating water splashing dead angles. The water distribution component, through the arc-shaped water distribution fins evenly distributed along the circumference of the fixed plate, rotates around the bearing in the water inlet component after being impacted by the water flow, and uses centrifugal force to distribute water to the outer area of ​​the nozzle, avoiding blank water distribution in the outer area; at the same time, the water splashing component distributes water to the central area of ​​the nozzle through multiple through-holes, and the water splashing guide strip on the top of the water splashing plate has a water splashing guide slope that can expand the water splashing range in the central area, forming a seamless connection of "outer rotation water distribution + central water distribution", which solves the problem of excessive water flow in some areas of the packing, insufficient water flow in some areas, or even no water coverage in some areas caused by traditional nozzles.

[0029] (2) The nozzle of the counter-flow cooling tower provided by this utility model realizes uniform water reception in the entire range of the packing, avoiding the situation that the cooling water stays on the surface of the packing too shortly due to the local water flow concentration of traditional nozzles. It makes the cooling water evenly distributed on the surface of the packing and the residence time reasonable, so that it can fully contact the air and complete the air-water heat exchange, thus solving the problem of insufficient heat exchange in the area of ​​excessive water flow of traditional nozzles.

[0030] (3) The nozzle of the counter-flow cooling tower provided by this utility model can make full use of the heat exchange area of ​​the cooling tower packing and maximize the heat exchange potential of the packing: through the full-range water distribution design of "peripheral rotating water distribution + central water distribution", it ensures that all packing areas of the cooling tower are covered by stable water flow. The packing in the areas with insufficient water flow or no water coverage that were originally idle due to the dead corner of the traditional nozzle water distribution can participate in the air-water heat exchange process, avoiding the waste of the effective heat exchange area of ​​the packing.

[0031] (4) The nozzle of the counterflow cooling tower provided by this utility model can improve the overall heat exchange efficiency of the cooling tower, ensure the stable operation of downstream equipment requiring cooling and reduce equipment operating costs: Based on the full heat exchange in a single area and the full utilization of the heat exchange area of ​​the packing material brought about by the uniform water distribution across the entire range, the overall heat exchange efficiency of the cooling tower is significantly improved and the cooling water temperature can stably reach the expected target; for downstream equipment such as central air conditioning units, there is no need to increase energy consumption to compensate for insufficient cooling, which directly reduces the equipment operating cost; for downstream equipment such as air compressors and injection molding machines that have strict process requirements for cooling temperature, it can provide cooling water temperature that meets the process requirements, avoiding product quality problems or production interruptions caused by excessive cooling water temperature. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an overall schematic diagram of the nozzle of a counterflow cooling tower according to the present invention;

[0034] Figure 2 This is a schematic diagram of the water inlet assembly in this utility model;

[0035] Figure 3 This is a schematic diagram of the bearing structure in this utility model;

[0036] Figure 4 This is a schematic diagram of the water-spreading component in this utility model;

[0037] Figure 5 This is a schematic diagram of the water splashing component in this utility model;

[0038] Figure 6 This is a schematic diagram of the hoisting buckle in this utility model.

[0039] Figure label:

[0040] 1. Water inlet assembly; 11. Water inlet pipe; 12. Bracket; 13. Bearing; 14. Water baffle; 15. Vertical plate; 16. Ring; 2. Water distribution assembly; 21. Fixing plate; 22. Lifting support column; 23. Connecting port; 24. Water distribution fins; 3. Water splash assembly; 31. Water splash plate; 32. Drain outlet; 33. Lifting buckle; 34. Elastic sheet; 35. Protruding end; 36. Slot; 37. Water splash guide strip. Detailed Implementation

[0041] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.

[0042] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0044] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0045] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] This utility model embodiment is intended to introduce and explain the structural composition of the nozzle of a counterflow cooling tower and the cooperation relationship between the various components. Unless otherwise specified, the size, material and manufacturing process of each component in the nozzle suitable for counterflow cooling towers in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0047] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0048] Example 1

[0049] Please see Figure 1 , Figure 2 and Figure 3 A nozzle for a counter-flow cooling tower, comprising a water inlet assembly 1.

[0050] Furthermore, the water inlet assembly 1 includes a threaded water inlet pipe 11, a bracket 12 is fixedly connected inside the water inlet pipe 11, a bearing 13 is fixedly connected inside the bracket 12, and a baffle plate 14 is fixedly connected to the outside of the water inlet pipe 11.

[0051] It should be noted that the threads on the inlet pipe 11 are located on the outer side of its pipe wall, and the inlet pipe 11, bracket 12, and baffle plate 14 are integrally injection molded. In this embodiment, the bracket 12 includes three upright plates 15 and one ring 16. All three upright plates 15 are fixedly connected to the ring 16, and the gaps between the three upright plates 15 are used for water flow, while the ring 16 is used to fix and install the bearing 13. In other embodiments, there are two upright plates 15, which are fixedly connected to each other by the ring 16.

[0052] It is understandable that when the outlet pipe of the counterflow cooling tower has threads, it can be connected to the inlet pipe 11 using the threads on the outer wall of the inlet pipe 11. However, when the outlet pipe of the counterflow cooling tower does not have threads, conventional technical means can be used for connection, such as adding flanges to the outlet pipe and the inlet pipe 11, and connecting the two flanges with bolts to fix the outlet pipe and the inlet pipe 11.

[0053] Please see Figure 1 and Figure 4 A nozzle for a counter-flow cooling tower, comprising a water distribution assembly 2.

[0054] Furthermore, the water-spreading component 2 includes a fixed plate 21, a hoisting support column 22 is fixedly connected to the middle of the fixed plate 21, the hoisting support column 22 is provided with external threads, the fixed plate 21 has multiple connecting ports 23 for water flow, the bottom of the fixed plate 21 is fixedly connected to multiple water-spreading fins 24, the multiple water-spreading fins 24 are equidistantly arranged, and the hoisting support column 22 is rotatably connected to the bearing 13.

[0055] In this embodiment, the water-spreading fins 24 are curved, and the multiple water-spreading fins 24 are divided into four groups, with four water-spreading fins 24 in each group, for a total of 16 water-spreading fins 24 installed.

[0056] Please see Figure 1 , Figure 5 and Figure 6 A nozzle for a counter-flow cooling tower, including a water splashing assembly 3.

[0057] Furthermore, the splashing component 3 includes a splashing plate 31, with multiple water outlets 32 extending through the splashing plate 31. When water flows into the splashing plate 31, some of the water will fall out along the water outlets 32. The top of the splashing plate 31 is provided with a lifting component, and the splashing plate 31 is connected to the fixed plate 21 by the lifting component.

[0058] Specifically, the lifting component includes multiple lifting clips 33. Each lifting clip 33 has two elastic pieces 34 at its end. The top of each elastic piece 34 is fixedly provided with a protruding end 35. The fixing plate 21 has slots 36 that are adapted to the number of lifting clips 33. When the water dispensing component 2 and the water splashing component 3 need to be connected, the protruding end 35 at the top of the lifting clip 33 squeezes the slot 36, causing the elastic piece 34 to deform under force and pass through the slot 36. After the protruding end 35 passes through the slot, the elastic piece 34 elastically recovers, so that the bottom of the protruding end 35 abuts against the side wall of the slot 36 to complete the engagement.

[0059] It should be noted that the protruding end 35 has a bevel. When the elastic piece 34 is pressed against the slot, the bevel will slide against the slot 36, causing the elastic piece 34 to deform under force, thus facilitating the passage of the elastic piece 34 through the slot. The specific design of the lifting buckle 33 is as follows: there are 4 of them, evenly distributed around the top circumference of the splash plate 31; the symmetrical distribution of the 4 lifting buckles 33 can counteract the centrifugal force when the water-spraying component rotates, preventing the splashing component from eccentrically swaying.

[0060] Furthermore, multiple splash guide strips 37 are fixedly connected to the top of the splash plate 31. Each splash guide strip 37 has a splash guide slope, so that when water reflects and touches the splash guide strip 37, the splash angle can be changed by the splash guide slope, thus expanding the splash range.

[0061] It is understandable that the actual usage of the nozzle of this utility model is as follows:

[0062] Before use, connect the inlet pipe 11 to the outlet pipe of the counterflow cooling tower;

[0063] During cooling, the counter-flow cooling tower discharges water through the outlet pipe, and the water flows into the water distribution component through the inlet pipe 11. The water flows through the connecting port 23 and impacts the surface of the splash plate 31. Part of the water that impacts the surface of the splash plate 31 will splash out through the gaps between the multiple water distribution fins 24, and part of it will impact the water distribution fins 24, causing the water distribution fins 24 to drive the splash component 3 and the water distribution component 2 to rotate around the hoisting support column 22 as the rotation center. The centrifugal force during rotation will spray the water out to spray water on the outer area of ​​the nozzle, and some water will fall out through the drain port 32 to spray water on the central area of ​​the nozzle.

[0064] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A nozzle for a counter-flow cooling tower, characterized in that: It includes a water inlet assembly (1) for introducing cooling water, a water distribution assembly (2) for rotating water distribution, and a splashing assembly (3) for receiving water flow; the water inlet assembly (1) is provided with a bearing (13) for supporting the rotation of the water distribution assembly (2), the water distribution assembly (2) is rotatably connected to the bearing (13), and the water distribution assembly (2) is provided with a water distribution structure that can be driven to rotate around the bearing (13) by the impact of water flow; The splashing component (3) is detachably coupled with the water distribution component (2), and the splashing component (3) is provided with a water-passing structure for water distribution in the central area and a splashing guide structure for changing the water flow angle; when the cooling water enters the water distribution component (2) through the water inlet component (1), part of the water flow impacts the water distribution structure and drives the water distribution component (2) to rotate, and part of the water flow falls into the splashing component (3) and flows out through the water-passing structure.

2. The nozzle of a counter-flow cooling tower according to claim 1, characterized in that: The water inlet assembly (1) includes a water inlet pipe (11), a bracket (12) fixed inside the water inlet pipe (11), and a baffle plate (14) fixed outside the water inlet pipe (11). The bracket (12) includes at least two upright plates (15) and a ring (16). One end of the upright plate (15) is fixedly connected to the inner wall of the water inlet pipe (11), and the other end is fixedly connected to the ring (16). The bearing (13) is fixedly installed in the center hole of the ring (16), and a gap is formed between adjacent upright plates (15) for water to flow through.

3. The nozzle of a counter-flow cooling tower according to claim 1, characterized in that: The water-spreading assembly (2) includes a fixed plate (21), a hoisting support column (22) located in the middle of the fixed plate (21), and water-spreading fins (24) located at the bottom of the fixed plate (21). The end of the hoisting support column (22) away from the fixed plate (21) is rotatably engaged with the inner ring of the bearing (13). The fixed plate (21) has multiple connecting ports (23) for water to flow into the splashing assembly (3). The water-spreading fins (24) are the water-spreading structure, and the water-spreading fins (24) are arc-shaped and equidistantly distributed along the circumference of the fixed plate (21).

4. The nozzle of a counter-flow cooling tower according to claim 1, characterized in that: The splashing component (3) and the water-spreading component (2) are detachably connected by a lifting device. The lifting device includes multiple lifting buckles (33) on the top of the splashing component (3) and a slot (36) on the fixing plate (21) of the water-spreading component (2). Each lifting buckle (33) has two elastic pieces (34) at its end. The top of the elastic piece (34) has a protruding end (35) with a guide slope. The protruding end (35) can deform the elastic piece (34) through the slot (36) by pressing the slot (36) with the slope. After the elastic piece (34) is reset, the bottom of the protruding end (35) abuts against the side wall of the slot (36).

5. The nozzle of a counter-flow cooling tower according to claim 1, characterized in that: The splashing assembly (3) includes a splashing plate (31), the water passage structure is a plurality of water outlets (32) that are opened through the splashing plate (31), and the splashing guide structure is a plurality of splashing guide strips (37) fixed to the top of the splashing plate (31); each of the splashing guide strips (37) is provided with a splashing guide slope for changing the direction of water splashing.

6. The nozzle of a counter-flow cooling tower according to claim 3, characterized in that: There are at least two water-spraying fins (24), and the included angle between two adjacent water-spraying fins (24) is equal; the diameter of the fixed disk (21) is greater than the maximum outer diameter of the water-spraying assembly (3).

7. The nozzle of a counter-flow cooling tower according to claim 2, characterized in that: The bracket (12) has three upright plates (15), which are evenly distributed around the circumference of the ring (16); the water inlet pipe (11), the bracket (12) and the baffle plate (14) are integrally injection molded structures, and the diameter of the baffle plate (14) is larger than the outer diameter of the water inlet pipe (11).

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