Natural gravity pool type water dispersing nozzle for cooling tower

Abstract

The utility model discloses a natural gravity pool type water spray head for cooling tower, including outer tube and coaxial setting inside pipe of outer tube, the bottom of outer tube is provided with the connecting ring, the upper fixed cover of connecting ring is provided with the water spray disc, the water spray disc is composed of a plurality of petal -shaped board spare with connecting ring as the axis annular array, it is fixedly connected through the connecting rib between connecting ring and outer tube, be provided with the flow guide component between inside pipe and water spray disc. The water of the utility model enters by inside pipe of the top of water spray head, and before falling into the top of water spray disc, the water that flows into inside pipe is shunted and is guided through flow guide component, so that water sprays from a plurality of spray outlets, and falls above each petal piece of water spray disc accurately, realizes water spray, and a part of water can flow into the below of water spray disc along the vertical branch pipe, so that water spray is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a natural gravity pool-type water spray nozzle for cooling towers. Background Technology

[0002] Cooling towers are key equipment in industrial circulating water systems. They release waste heat generated during industrial production into the atmosphere through evaporative cooling, maintaining stable operating temperatures. Their core function relies on sufficient contact between water and air. However, traditional cooling towers often suffer from problems such as packing blockage and uneven airflow distribution, leading to a gradual decline in heat exchange efficiency over time, especially in high-temperature and high-humidity environments where cooling performance fluctuates significantly. To improve operational stability, modern cooling towers optimize tower structure and airflow guidance design, employ anti-clogging packing modules, and incorporate intelligent monitoring systems. By collecting parameters such as water temperature, wind speed, and humidity in real time, they dynamically adjust the circulating water volume and fan speed to ensure efficient heat exchange under various operating conditions, while simultaneously reducing energy and water consumption.

[0003] Gravity-fed pool-type water distribution nozzles are a typical design in cooling towers that utilizes gravity to achieve uniform water film distribution. Their core principle is that a special internal flow channel structure guides circulating water to the nozzle, where it naturally disperses into a uniform water film under gravity, covering the packing surface. Compared to traditional pressure-type nozzles, this design eliminates the need for a high-pressure water pump to achieve stable water distribution, significantly reducing system energy consumption and operating noise, while also avoiding the impact and wear of high-pressure water flow on the packing.

[0004] Patent document CN201425444Y discloses a natural gravity pool-type water distribution nozzle that ensures the petal-shaped disc will not tilt or deform. It includes a cylindrical main tube with a main flange at the upper end, a guide tube extending into the main tube, and a petal-shaped disc fixedly connected to the lower part of the main tube. The main tube, guide tube, and petal-shaped disc are coaxial, and the petal-shaped disc is fixedly connected to the lower part of the main tube by two or more connecting ribs, which are evenly distributed circumferentially around the axis of the guide tube. Because the petal-shaped disc is fixedly connected to the lower part of the main tube by two or more connecting ribs, which are evenly distributed circumferentially around the axis of the guide tube, the petal-shaped disc is under balanced force, will not tilt or deform, and has good water distribution uniformity.

[0005] As in the prior art of the aforementioned patent, the nozzle relies on water flowing out from inside the guide tube to be dispersed and sprayed through the petal-shaped disc below. However, due to the large inner diameter of the guide tube, the water inside the guide tube cannot be evenly distributed to the surface of each petal. Furthermore, most of the water is dispersed through the disc, and the nozzle cannot receive sufficient water spray, resulting in uneven water distribution. Utility Model Content

[0006] The purpose of this invention is to provide a natural gravity pool-type water spray nozzle for cooling towers to overcome the aforementioned shortcomings in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a natural gravity pool-type water spray nozzle for cooling towers, comprising an outer pipe and an inner pipe coaxially disposed inside the outer pipe, a connecting ring being provided at the bottom end of the outer pipe, a water spray plate being fixedly sleeved on the upper part of the connecting ring, the water spray plate being composed of a plurality of petal-shaped plates arranged in a ring array around the connecting ring as the axis, the connecting ring and the outer pipe being fixedly connected by connecting ribs, and a flow guiding component being provided between the inner pipe and the water spray plate.

[0008] As a further description of the above technical solution: the flow guiding assembly includes a fixed ring fixedly installed on the inner tube. The fixed ring has multiple through holes, one of which is located at the axis of the fixed ring, and the remaining multiple through holes are arranged in a ring array with the axis of the connecting ring as the axis. The number of through holes corresponds to the number of petal pieces on the water distribution plate. Multiple flow guiding pipes are fixedly installed at the bottom end of the fixed ring. The multiple flow guiding pipes are interconnected with the inner tube through the multiple through holes. The bottom end of the multiple flow guiding pipes is provided with a spray outlet, and the multiple spray outlets are respectively located above each petal piece of the water distribution plate.

[0009] As a further description of the above technical solution: the flow guiding assembly also includes a connecting pipe installed through a through hole at the bottom axis of the fixed ring, and two branch pipes are installed at the bottom of the connecting pipe. The two branch pipes bypass the connecting rib and pass through the connecting ring, so that their outlets are located below the connecting ring and the water distribution plate.

[0010] As a further description of the above technical solution: a main flange is fixedly installed at the top end of the outer tube, and a secondary flange is fixedly installed at the top end of the inner tube. A tapered groove is provided on the main flange, and the secondary flange is embedded in the tapered groove used to restrict the axial movement of the secondary flange.

[0011] As a further description of the above technical solution: a first reinforcing rib is provided on the outer cylindrical surface of the inner tube, and a second reinforcing rib is provided on the outer cylindrical surface of the outer tube.

[0012] As a further description of the above technical solution: the outer cylindrical surface of the outer tube is provided with a helical surface that is inclined to its axis and has elastic fins.

[0013] This utility model provides a natural gravity pool-type water distribution nozzle for cooling towers. It has the following beneficial effects: water enters through the inner tube at the top of the nozzle, and before falling onto the water distribution plate, the water flowing into the inner tube is diverted and guided by the flow guiding component, so that the water is sprayed out from multiple nozzles and accurately falls on each petal of the water distribution plate, thus achieving water distribution. In addition, some water can flow down the vertical distribution pipe to the bottom of the water distribution plate, making the water distribution more uniform.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the natural gravity pool-type water spray nozzle for cooling towers proposed in this utility model. Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention with the flow guiding component removed; Figure 4 This is a cross-sectional view of the present invention after the flow guiding component has been removed; Figure 5 This is a three-dimensional exploded view of the flow guiding component and the dispersion disk of this utility model; Figure 6 This is a schematic diagram of the main structure of the present invention after fins are installed on the outside of the outer tube; Figure 7 This is a top view of the fixed ring, guide pipe, and water distribution plate of this utility model.

[0017] Legend: 1. Outer pipe; 2. Inner pipe; 3. Conical groove; 4. Secondary flange; 5. First reinforcing rib; 6. Main flange; 7. Second reinforcing rib; 8. Connecting rib; 9. Sprinkler plate; 10. Connecting ring; 11. Fixing ring; 12. Through hole; 13. Guide pipe; 14. Spray outlet; 15. Branch pipe; 16. Connecting pipe; 18. Fin. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-7The cooling tower uses a natural gravity pool-type water spray nozzle, which includes an outer pipe 1 and an inner pipe 2 coaxially arranged inside the outer pipe 1. A connecting ring 10 is provided at the bottom end of the outer pipe 1, and a water spray plate 9 is fixedly sleeved on the upper part of the connecting ring 10. The water spray plate 9 is composed of multiple petal-shaped plates arranged in a ring around the connecting ring 10 as the axis. The connecting ring 10 and the outer pipe 1 are fixedly connected by connecting ribs 8. A flow guiding component is provided between the inner pipe 2 and the water spray plate 9. Water enters from the inner pipe 2 at the top of the nozzle. Before falling above the water spray plate 9, the water flowing into the inner pipe 2 is diverted and guided by the flow guiding component, so that the water is sprayed out from multiple nozzles 14 and accurately falls above each petal of the water spray plate 9 to achieve water spraying. In addition, some water can flow down the vertical branch pipe 15 to the bottom of the water spray plate 9, making the water spraying more uniform.

[0020] As a preferred embodiment, the flow guiding assembly includes a fixing ring 11 fixedly installed on the inner tube 2. The fixing ring 11 has multiple through holes 12, one of which is located at the axis of the fixing ring 11. The remaining through holes 12 are arranged in a circular array around the axis of the connecting ring 10. The number of through holes 12 corresponds to the number of petal-shaped components on the water distribution plate 9. Multiple flow guiding pipes 13 are fixedly installed at the bottom end of the fixing ring 11. The multiple flow guiding pipes 13 are interconnected with the inner tube 2 through the multiple through holes 12. The bottom end of the guide pipe 13 is provided with a spray outlet 14, and multiple spray outlets 14 are respectively arranged above each petal of the water distribution plate 9. The water entering the inner pipe 2 can be distributed to the top of each petal through the guide pipe 13 below the fixing ring 11, and another part can flow out from the two branch pipes 15 through the connecting pipe 16 below the middle through hole 12, so as to achieve water distribution below the water distribution plate 9. Furthermore, the inner diameters of the guide pipe 13, the connecting pipe 16, and the branch pipes 15 are all relatively large to avoid the situation where the surface tension of the water causes the formation of a water film covering the holes.

[0021] As a preferred technical solution of this embodiment, the flow guiding component further includes a connecting pipe 16 installed in connection with the through hole 12 at the bottom axis of the fixed ring 11. Two branch pipes 15 are installed in connection with the bottom of the connecting pipe 16. The two branch pipes 15 bypass the connecting rib 8 and pass through the connecting ring 10, so that their outlets are located below the connecting ring 10 and the water distribution plate 9. A portion of the water is distributed through the petals of the water distribution plate 9, and the remaining water can flow out from the two branch pipes 15 through the connecting pipe 16 below the middle through hole 12, thereby realizing the water distribution below the water distribution plate 9.

[0022] As a preferred technical solution of this embodiment, a main flange 6 is fixedly installed at the top end of the outer pipe 1, and a secondary flange 4 is fixedly installed at the top end of the inner pipe 2. A tapered groove 3 is provided on the main flange 6, and the secondary flange 4 is embedded in the tapered groove 3 used to restrict the axial movement of the secondary flange 4.

[0023] As a preferred technical solution of this embodiment, a first reinforcing rib 5 is provided on the outer cylindrical surface of the inner tube 2, and a second reinforcing rib 7 is provided on the outer cylindrical surface of the outer tube 1; the first reinforcing rib 5 and the second reinforcing rib 7 respectively increase the structural strength of the inner tube 2 and the outer tube 1, so that they will not deform.

[0024] As a preferred technical solution in this embodiment, the outer cylindrical surface of the outer tube 1 is provided with a helical surface that is inclined to its axis and has elasticity, and the fins 18 are provided to further prevent the outer tube 1 from deforming and facilitate installation and disassembly.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A natural gravity pool-type water spray nozzle for cooling towers, comprising an outer pipe (1) and an inner pipe (2) coaxially disposed inside the outer pipe (1), wherein a connecting ring (10) is provided at the bottom end of the outer pipe (1), and a water spray plate (9) is fixedly sleeved on the upper part of the connecting ring (10), characterized in that, The water distribution plate (9) is composed of multiple petal-shaped plates arranged in a ring around a connecting ring (10). The connecting ring (10) and the outer pipe (1) are fixedly connected by connecting ribs (8). A flow guiding component is provided between the inner pipe (2) and the water distribution plate (9).

2. The natural gravity pool-type water spray nozzle for cooling towers according to claim 1, characterized in that, The flow guiding assembly includes a fixed ring (11) fixedly installed on the inner tube (2). The fixed ring (11) has multiple through holes (12). One of the through holes (12) is located at the axis of the fixed ring (11), and the other multiple through holes (12) are arranged in a ring array with the axis of the connecting ring (10) as the axis. The number of through holes (12) corresponds to the number of petal pieces on the water distribution plate (9). Multiple flow guiding pipes (13) are fixedly installed at the bottom end of the fixed ring (11). The multiple flow guiding pipes (13) are interconnected with the inner tube (2) through the multiple through holes (12). The bottom end of the multiple flow guiding pipes (13) is provided with a spray outlet (14). The multiple spray outlets (14) are respectively located above each petal piece of the water distribution plate (9).

3. The natural gravity pool-type water spray nozzle for cooling towers according to claim 1, characterized in that, The flow guiding assembly also includes a connecting pipe (16) installed in connection with a through hole (12) at the bottom axis of the fixed ring (11). Two branch pipes (15) are installed in connection with the bottom of the connecting pipe (16). The two branch pipes (15) bypass the connecting rib (8) and pass through the connecting ring (10), so that their outlets are located below the connecting ring (10) and the water distribution plate (9).

4. The natural gravity pool-type water spray nozzle for cooling towers according to claim 1, characterized in that, The top end of the outer tube (1) is fixedly installed with a main flange (6), and the top end of the inner tube (2) is fixedly installed with a secondary flange (4). The main flange (6) is provided with a tapered groove (3), and the secondary flange (4) is embedded in the tapered groove (3) used to restrict the axial movement of the secondary flange (4).

5. The natural gravity pool-type water spray nozzle for cooling towers according to claim 1, characterized in that, The inner tube (2) is provided with a first reinforcing rib (5) on its outer cylindrical surface, and the outer tube (1) is provided with a second reinforcing rib (7) on its outer cylindrical surface.

6. The natural gravity pool-type water spray nozzle for cooling towers according to claim 1, characterized in that, The outer cylindrical surface of the outer tube (1) is provided with a helical surface that is inclined to its axis and has elastic fins (18).

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