Radial impeller driven rotating sprinkler, water distribution tray, cooling tower, method of watering

Abstract

A radial impeller driven rotating nozzle, water distribution plate, cooling tower and water spraying method, comprising: a flow guide bucket, an impeller mechanism, a water spraying cap and a limiting cover; the impeller mechanism is arranged in the flow guide bucket; the water spraying cap is connected with the impeller mechanism; the limiting cover is connected with the lower side of the flow guide bucket and is rotatably connected with the impeller mechanism; the flow guide bucket comprises spiral flow guide fins for changing the direction of water flow to the radial impact impeller mechanism; the impeller mechanism is used for receiving the direction impact of the water flow out of the flow guide bucket and rotating, and simultaneously rotating the water spraying cap; and the limiting cover is used for rotatably fixing the impeller mechanism. The spiral flow guide fins are adopted, water flow pushes the impeller mechanism blades radially after passing through the spiral flow guide fins, so that the impeller receives greater radial kinetic energy.

Description

Technical Field

[0001] This invention belongs to the field of cooling tower technology, and specifically relates to a radial impeller-driven rotating nozzle, a cooling tower, and a water spraying method. Background Technology

[0002] The cooling tower water distribution tray needs to spray the cooling water onto the packing material below, and then the air is blown by the fan. The water on the packing material exchanges heat with the air. This requires the spray nozzles to be installed at the bottom of the cooling tower to spray water onto the packing material below. The uniformity of the spray from the nozzles will affect the heat exchange efficiency. Therefore, the existing cooling tower spray nozzles are designed to improve the uniformity of the spray.

[0003] Existing technology discloses a water distribution nozzle and a cooling tower. The water distribution nozzle includes: a housing having a rotating chamber, a first end of which forms a water inlet, and a second end forming a water outlet; a spiral blade disposed within the rotating chamber, forming a spiral flow channel between the spiral blade and the housing, with the water inlet and outlet connected through the spiral flow channel; and a water diffuser rotatably disposed at the water outlet. However, the shortcomings of this prior art are: the rotating blade rotates under the influence of water, primarily accelerating the water flow without changing its direction; the water flow first impacts the water diffuser vertically downwards, then impacts the blades on the diffuser, causing it to rotate and spray water, resulting in significant energy loss and a low rotational speed of the water diffuser.

[0004] One type of existing shower head disperses water flow by impacting a splash plate, a conical block, or a petal-shaped water distribution block. However, this type of shower head has poor water dispersion; large water flows cannot form smaller droplets simply by impacting the splash plates of different shapes, resulting in uneven water distribution. Another type of existing shower head has a propeller-like structure with many flow channels. Cooling water enters the shower head, and gravity drives the shower head to rotate. The cooling water is then sprayed out by centrifugal force as the shower head rotates. However, the water flow indirectly impacts the shower head blades, resulting in limited impact force. This makes it difficult to start under low water pressure and causes poor stability when the water pressure fluctuates. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a radial impeller-driven rotating nozzle, cooling tower, and water spraying method. By guiding water flow through spiral guide vanes to directly and radially impact the impeller mechanism blades, the impeller mechanism rotates at high speed. Under high water pressure conditions, the impeller mechanism rotates faster, the water flow is more dispersed, and the water spraying effect is better. Under low water pressure conditions, the impeller mechanism can also start rotating, which can adapt to a wider range of water pressure changes.

[0006] The present invention adopts the following technical solution.

[0007] The first aspect of the present invention provides a radial impeller-driven rotary nozzle, comprising:

[0008] Flow guide barrel, impeller mechanism, sprinkler cap and limit cover;

[0009] The impeller mechanism is disposed inside the guide barrel; the sprinkler cap is connected to the impeller mechanism; the limiting cover is connected to the lower side of the guide barrel and is rotatably connected to the impeller mechanism.

[0010] The guide barrel includes spiral guide vanes for changing the direction of water flow to radially impact the impeller mechanism. The impeller mechanism is used to receive the impact of the water flow from the guide barrel and rotate, while simultaneously driving the sprinkler cap to rotate. The limiting cover is used to rotatably fix the impeller mechanism.

[0011] In one possible implementation, a detachable structure is also included to connect the impeller mechanism and the sprinkler cap.

[0012] In one possible implementation, the flow guide barrel further includes a shell, a water inlet, a mounting plate, and a connecting rod;

[0013] The mounting plate is provided on the outer side of the outer shell, the water inlet is provided on the top of the outer shell, the spiral guide plate is provided on the inner wall of the outer shell of the guide barrel, and the connecting rod is fixedly provided on the upper part of the inner shell.

[0014] In one possible implementation, the end of the guide vane faces the impeller mechanism, which is used to make the water flow along a fixed path and radially impact the impeller mechanism.

[0015] In one possible implementation, the outer shell, the water inlet, the mounting plate, the guide vane, and the connecting rod are all 3D printed as a single integrated structure.

[0016] In one possible implementation, the connecting rod has an opening in the middle that matches the impeller mechanism, serving as a bearing for the rotation of the impeller mechanism.

[0017] In one possible implementation, the impeller mechanism includes an upper connecting rod, impeller blades, and a lower connecting rod.

[0018] The upper connecting rod of the impeller mechanism is connected to the lower connecting rod of the impeller mechanism, and the impeller mechanism blades are provided at the connection point; the impeller mechanism blades are used to receive the impact of the water flow to obtain kinetic energy for rotation.

[0019] In one possible implementation, the sprinkler cap includes a conical cap body, sprinkler holes, and diverting teeth;

[0020] The conical cap is a conical shell with water spray holes and diverting teeth evenly arranged on its outer surface. The water spray holes are used to ensure that water is sprayed down directly below the water spray cap. The diverting teeth are used to cut and disperse the water flow and spray it out during the rotation of the water spray cap.

[0021] In one possible implementation, the diverting teeth have a cutting edge structure and a serrated surface.

[0022] In one possible implementation, the limiting cover includes a limiting rod, the limiting rod having an opening in the middle that matches the impeller mechanism for limiting the impeller mechanism.

[0023] In one possible implementation, the limiting cover is a one-piece molded structure.

[0024] A second aspect of the present invention provides a water distribution tray,

[0025] This includes the radial impeller-driven rotary nozzle mentioned above.

[0026] A third aspect of the present invention provides a cooling tower,

[0027] This includes the radial impeller-driven rotary nozzle mentioned above.

[0028] A fourth aspect of the present invention provides a water spraying method, which employs the above-mentioned radial impeller to drive a rotating nozzle, comprising:

[0029] The water flow changes direction after passing through the guide barrel, forming a water flow that radially impacts the impeller mechanism;

[0030] The impeller mechanism rotates after being impacted radially by the water flow, and drives the sprinkler cap to rotate as well;

[0031] The water flow impacting the impeller mechanism strikes the rotating sprinkler cap, thus completing the water spraying process.

[0032] The beneficial effects of this invention are that, compared with the prior art,

[0033] The radial impeller-driven rotary sprinkler provided by this invention solves the problem of existing rotary sprinkler heads where the water wheel cannot rotate under low water pressure. It proposes to use spiral guide vanes distributed inside the guide barrel to guide the water flow along a fixed path. By coordinating the blade inclination angle of the impeller mechanism with the water flow direction, the water flow can impact the impeller mechanism blades vertically and radially, increasing the vertical force on the impeller mechanism blades and making the impeller mechanism easier to rotate. The impeller mechanism can be driven to rotate even at low water pressure, and the rotation speed of the impeller mechanism is higher at high water pressure, resulting in more uniform water spraying.

[0034] This invention proposes using an impeller mechanism to drive the conical shell sprinkler cap to rotate and spray water. This solves the problem that the cone-shaped water spray used in previous sprinkler heads relied solely on the impact of the water flow, resulting in very limited water spraying effect. The diverting teeth distributed on the sprinkler cap cut and disperse the water flow during rotation. After being cut into small water droplets, the water flow is sprayed out under the action of centrifugal force, resulting in a finer and more uniform water flow. The sprinkler cap surface is evenly distributed with spray holes. During rotation, the water flow is sprayed out through the spray holes under the action of centrifugal force, resulting in more uniform water spraying and a wider spraying range.

[0035] This invention greatly expands the water spraying range by using two spraying paths. The cooling water flows from the water distribution plate and is driven by a radial impeller to rotate the nozzle, so that it can be sprayed more evenly and over a larger area; thus, the purpose of efficient and uniform water distribution can be achieved.

[0036] This invention drives the sprinkler cap to rotate by directly and radially impacting the impeller blades with water flow, ensuring maximum utilization of the impact force and allowing easy start-up even under low water pressure conditions, regardless of the impact of water pressure fluctuations.

[0037] The present invention employs a spiral guide vane structure, which forces the water to flow along a fixed path. After passing through the spiral guide vane, the water radially pushes the impeller mechanism blades, causing the impeller mechanism to receive greater radial kinetic energy and reducing the loss of water kinetic energy. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the radial impeller-driven rotary nozzle of the present invention;

[0039] Figure 2 This is a schematic cross-sectional view of the radial impeller-driven rotating nozzle of the present invention;

[0040] Figure 3 This is a schematic diagram of the flow guide barrel of the radial impeller-driven rotating nozzle of the present invention;

[0041] Figure 4 This is a schematic diagram of the impeller mechanism of the radial impeller-driven rotary nozzle of the present invention;

[0042] Figure 5 This is a schematic diagram of the limiting cover for the radial impeller-driven rotating nozzle of the present invention;

[0043] Figure 6 This is a schematic diagram of the sprinkler cap of the radial impeller-driven rotating nozzle of the present invention;

[0044] Figure 7 This is a schematic diagram of the flow divider teeth of the radial impeller-driven rotary nozzle of the present invention;

[0045] Figure 8 This is a schematic diagram showing the connection between the sprinkler cap and the impeller mechanism of the radial impeller-driven rotary nozzle of the present invention.

[0046] The component names corresponding to each mark in the attached diagram are as follows:

[0047] 1-Guide barrel, 11-Inlet, 12-Mounting plate, 13-Guide vane, 14-Connecting rod; 2-Impeller mechanism; 21-Upper connecting rod of impeller mechanism; 22-Impeller mechanism blade; 23-Lower connecting rod of impeller mechanism; 3-Sprinkler cap, 31-Sprinkler hole, 32-Diverter tooth; 4-Limit cover, 41-Limit rod; 5-Detachable structure. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0049] like Figure 1-8 As shown, this embodiment of the invention provides a radial impeller-driven rotary nozzle, mainly comprising: a guide barrel 1, an impeller mechanism 2, a spray cap 3, a limiting cover 4, and a detachable structure 5, as shown. Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown. The impeller mechanism 2 is located inside the guide barrel 1. The sprinkler cap 3 is connected to the impeller mechanism 2. The limiting cover 4 is connected to the lower side of the guide barrel and is also rotatably connected to the impeller mechanism 2. The detachable structure 5 connects the impeller mechanism 2 and the sprinkler cap 3. The guide barrel 1 is used to change the direction of the water flow to radially impact the impeller mechanism 2. The impeller mechanism 2 is used to receive the impact of the water flow from the guide barrel 1 and rotate, while simultaneously driving the sprinkler cap 3 to rotate. The limiting cover 4 is used to rotatably fix the impeller mechanism 2. The detachable structure 5 is used to connect the impeller mechanism 2 and the sprinkler cap 3.

[0050] like Figure 2 As shown, the flow guide 1 includes a shell, a water inlet 11, a mounting plate 12, a flow guide plate 13, and a connecting rod 14; the impeller mechanism 2 includes an upper connecting rod 21, impeller blades 22, and a lower connecting rod 23; the sprinkler cap 3 includes a conical cap body, a sprinkler hole 31, and a flow divider tooth 32; and the limiting cover 4 includes a limiting rod 41.

[0051] An installation plate 12 is provided on the outer side of the outer shell of the flow guide barrel 1, and an inlet 11 is provided on the top of the outer shell. A spiral guide vane 13 is provided on the inner wall of the outer shell of the flow guide barrel 1, and a connecting rod 14 is fixedly provided on the upper part of the inner shell. The end of the guide vane 13 is directly opposite the impeller mechanism blade 22. The guide vane 13 forces the water to enter the flow guide barrel 1 through the inlet 11 and flow along a fixed path, eventually impacting the impeller mechanism blade 22 radially.

[0052] In a preferred but non-limiting embodiment of the present invention, the inlet 11 is preferably a willow leaf-shaped inlet, which can uniformly spray water at different heights to achieve a variable flow rate function.

[0053] In a preferred but non-limiting embodiment of the present invention, the outer shell, water inlet 11, mounting plate 12, guide plate 13 and connecting rod 14 are all 3D printed integrated structures, which makes the structure of the guide barrel 1 stronger and reduces redundant materials such as connectors. In addition, the seamless design of the integrated structure makes it less likely for water to leak from the seams, thus maximizing the kinetic energy of the water flow.

[0054] like Figure 3 As shown, a connecting rod 14 is provided at the upper end of the inner shell of the guide barrel 1 for connecting the impeller mechanism 2. An opening in the middle of the connecting rod 14, matching the upper connecting rod 21 of the impeller mechanism, serves as a rotary bearing. This opening is used to connect with the upper connecting rod 21 of the impeller mechanism. The lower end of the guide barrel 1 is detachably connected to the limiting cover 4. The limiting cover 4 includes a limiting rod 41. An opening in the middle of the limiting rod 41, matching the lower connecting rod 23 of the impeller mechanism, is used to limit the impeller mechanism 2, preventing excessive shaking during rotation and thus affecting the rotational speed of the impeller mechanism 2. Figure 5 As shown.

[0055] In a preferred but non-limiting embodiment of the present invention, the connecting rod 14 and the outer shell of the guide barrel 1 are integrally formed; the impeller mechanism 2 is inserted from the bottom of the guide barrel 1, and the upper end of the impeller mechanism 2 is engaged with the opening in the middle of the connecting rod 14, which serves as the rotation axis during rotation. The lower end of the outer shell of the guide barrel 1 and the limiting cover 4 are provided with mutually engaging threads, and the lower end of the threaded guide barrel 1 outer shell is threadedly connected to the limiting cover 4. The limiting rod 41 and the limiting cover 4 are integrally formed, resulting in higher structural strength of the limiting cover 4 and reducing redundant materials such as connecting parts.

[0056] like Figure 4As shown, the upper connecting rod 21 of the impeller mechanism is connected to the lower connecting rod 23 of the impeller mechanism, and the impeller mechanism blade 22 is set at the connection point. The impeller mechanism blade 22 is used to receive the impact of the water flow to obtain kinetic energy for rotation. The upper connecting rod 21 of the impeller mechanism is rotatably connected to the connecting rod 14 at the upper end of the guide barrel 1. The connecting rod 14 has an opening in the middle that matches the upper connecting rod 21 of the impeller mechanism, which is used as a bearing for the rotation of the impeller mechanism 2. The lower connecting rod 23 of the impeller mechanism is connected to the sprinkler cap 3 through the detachable structure 5, which is used to drive the sprinkler cap 3 to rotate and spray water.

[0057] In a preferred but non-limiting embodiment of the present invention, the detachable structure 5 at the upper end of the sprinkler cap 3 is a connecting buckle used to engage with the lower end connecting rod of the impeller mechanism; other components that can achieve detachable functions, such as threaded connections, are also within the protection scope of the present invention.

[0058] like Figure 6 As shown, the cone-shaped cap of the sprinkler cap 3 is a conical shell with sprinkler holes 31 evenly arranged on its surface to ensure that water is also sprayed down directly below the sprinkler cap 3; the outer surface of the cone-shaped cap is evenly arranged with diverting teeth 32 to cut and disperse the water flow during the rotation of the sprinkler cap 3 and spray it out, so that the water coverage area is wider.

[0059] The diverting teeth 32 have a blade-like structure and a serrated surface, which can better cut and disperse the water flow. Under the rotation of the sprinkler cap 3, the water flow can be better dispersed. After this process, the water flow is dispersed into small water droplets and sprayed out, and the water coverage area is wider.

[0060] In a preferred but non-limiting embodiment of the present invention, the spray holes 31 are distributed in the gaps between the diverting teeth 32. If there are too many diverting teeth 32, the water flow will be cut into small water droplets and then hit the nearby diverting teeth again during the rotation process. Therefore, the number of diverting teeth 32 needs to be reasonably distributed, and the position between each diverting tooth 32 is suitable for opening the spray holes 31 so that some water is sprayed out from under the spray cap 3, and the spraying range is also wider.

[0061] This invention provides a water distribution plate, which includes a radial impeller-driven rotating nozzle connected to the water distribution plate via a mounting plate 12. The mounting plate 12 is snapped into an opening at the bottom of the water distribution plate, and water flows through the inlet at the upper end of the radial impeller-driven rotating nozzle and is sprayed out from the spray cap 3 at the bottom of the nozzle.

[0062] In a preferred but non-limiting embodiment of the invention, such as Figure 3 As shown; the guide barrel 1 and the limiting cover 4 are threadedly connected; the limiting cover 4 and the limiting rod 41 on the limiting cover are integrally formed; as shown Figure 2 As shown, the upper end of the connecting rod 21 of the impeller mechanism is inserted into the middle opening of the connecting rod 14 of the guide tube 1, as shown. Figure 8As shown, the lower end is connected to the sprinkler cap 3 via a detachable structure 5; the sprinkler cap 3 and the flow-diverting teeth 32 on the surface are integrally formed.

[0063] This invention also provides a water distribution plate, including the aforementioned radial impeller-driven rotating nozzle.

[0064] This invention also provides a cooling tower, including the aforementioned radial impeller-driven rotating nozzle.

[0065] This invention also provides a water spraying method, employing the rotating nozzle described in the above embodiments, comprising:

[0066] The water flow changes direction after passing through the guide tube 1, forming a radial water flow that impacts the impeller mechanism 2;

[0067] The impeller mechanism 2 rotates after receiving the radial impact of the water flow, and drives the sprinkler cap 3 to rotate together;

[0068] The water flow from the impeller mechanism 2 impacts the rotating sprinkler cap 3, thus completing the water spraying process.

[0069] Water flows into the spray head through the inlet 11 and flows along the spiral guide vane 13; it flows out at the end of the guide vane 13 and radially impacts the impeller mechanism blades 22, pushing the impeller mechanism 2 to rotate and causing the sprinkler cap 3 to rotate together.

[0070] After the impeller mechanism 2 is rotated, water flows out from the impeller mechanism blades 22; the outflowing water impacts the rotating sprinkler cap 3;

[0071] Part of the water flow impacting the sprinkler cap 3 is sprayed down through the sprinkler hole 31, while the remaining part impacts the diverting teeth 32 as the sprinkler cap 3 rotates, thus achieving more uniform water spraying over a wider area.

[0072] With the rotating nozzle and water spraying method provided in this embodiment of the invention, after the water flows down from the guide tank 1, it impacts the conical, rotating water spray cap 3 under the action of gravity. The diverting teeth 32 distributed on the surface of the water spray cap 3 can effectively cut and drive the water flow to form small water droplets during rotation, which has a good dispersion effect. Moreover, the small water droplets are driven to rotate by the water spray cap 3, which can spray further. The surface of the conical shell water spray cap 3 is also evenly opened with water spraying holes 31, and a part of the water flow is also sprayed down through the water spraying holes 31. Through these two spraying paths, the spraying range is greatly expanded. After the cooling water flows from the water distribution plate through the nozzle, it can be sprayed down more evenly and with a larger coverage area. In this way, the purpose of efficient and uniform water distribution can be achieved.

[0073] The rotating nozzle provided in this invention features a spiral guide vane that changes the direction of the water flow during the acceleration process, causing it to radially impact the impeller blades. This converts all the potential energy of the water flow into kinetic energy during the impact, resulting in a lower water flow rate required for the impeller to rotate. This solves the problems of the impeller not rotating under low water pressure and poor water spraying effect when the water pressure fluctuates.

[0074] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0075] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0076] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0077] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A radial impeller-driven rotary nozzle, characterized in that, include: The guide bucket (1), impeller mechanism (2), sprinkler cap (3) and limit cover (4); The impeller mechanism (2) is located inside the guide barrel (1); the sprinkler cap (3) is connected to the impeller mechanism (2); the limiting cover (4) is connected to the lower side of the guide barrel (1) and is rotatably connected to the impeller mechanism (2); The guide barrel (1) includes a spiral guide vane (13) for changing the direction of the water flow to impact the impeller mechanism (2) radially. The impeller mechanism (2) is used to receive the impact of the water flow from the guide barrel (1) and rotate, while driving the sprinkler cap (3) to rotate. The limiting cover (4) is used to rotatably fix the impeller mechanism (2). The end of the guide vane (13) is directly opposite the impeller mechanism (2) for making the water flow along a fixed path and impact the impeller mechanism (2) radially. The sprinkler cap (3) includes a diverting tooth (32). The diverting tooth (32) is used to cut and disperse the water flow and spray it out during the rotation of the sprinkler cap (3). The diverting tooth (32) has a cutting edge structure and a serrated surface.

2. The radial impeller-driven rotary nozzle according to claim 1, characterized in that, Also includes: A detachable structure (5) connects the impeller mechanism (2) and the sprinkler cap (3).

3. The radial impeller-driven rotary nozzle according to claim 1, characterized in that: The flow guide barrel (1) also includes a shell, a water inlet (11), a mounting plate (12), and a connecting rod (14). The mounting plate (12) is provided on the outer side of the outer shell, the water inlet (11) is provided on the top of the outer shell, the spiral guide plate (13) is provided on the inner wall of the outer shell, and the connecting rod (14) is fixedly provided on the upper part of the inner side of the outer shell.

4. The radial impeller-driven rotary nozzle according to claim 3, characterized in that: The outer shell, the water inlet (11), the mounting plate (12), the guide plate (13), and the connecting rod (14) are all 3D printed integrated structures.

5. The radial impeller-driven rotary nozzle according to claim 3, characterized in that: The connecting rod (14) has an opening in the middle that matches the impeller mechanism (2) and is used as a bearing for the rotation of the impeller mechanism (2).

6. The radial impeller-driven rotary nozzle according to claim 1, characterized in that: The impeller mechanism (2) includes an upper connecting rod (21), an impeller blade (22), and a lower connecting rod (23). The upper connecting rod (21) of the impeller mechanism is connected to the lower connecting rod (23) of the impeller mechanism, and the impeller mechanism blade (22) is provided at the connection point; the impeller mechanism blade (22) is used to receive the impact of the water flow to obtain kinetic energy for rotation.

7. The radial impeller-driven rotary nozzle according to claim 1, characterized in that: The sprinkler cap (3) also includes a conical cap body and a sprinkler hole (31); The conical cap is a conical shell with the water spraying holes (31) and the diverting teeth (32) evenly arranged on its outer surface; the water spraying holes (31) are used to ensure that water is also sprayed down directly below the water spraying cap (3).

8. The radial impeller-driven rotary nozzle according to claim 1, characterized in that: The limiting cover (4) includes a limiting rod (41), and the limiting rod (41) has an opening in the middle that matches the impeller mechanism (2) for limiting the impeller mechanism (2).

9. The radial impeller-driven rotary nozzle according to claim 1, characterized in that: The limiting cover (4) is an integrally formed structure.

10. A water distribution tray, characterized in that: Includes the radial impeller-driven rotary nozzle as described in any one of claims 1-9.

11. A cooling tower, characterized in that: Includes the radial impeller-driven rotary nozzle as described in any one of claims 1-9.

12. A water spraying method, employing a radial impeller-driven rotating nozzle as described in any one of claims 1-9, characterized in that, include: The water flow changes direction after passing through the guide barrel (1), forming a water flow that radially impacts the impeller mechanism (2); The impeller mechanism (2) rotates after receiving the radial impact of the water flow, and drives the sprinkler cap (3) to rotate together; The water flow impacting the impeller mechanism (2) impacts the rotating sprinkler cap (3), thus completing the water spraying.

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