Cooling tower water and air dual-drive turbine type rotating sprinkler

Abstract

A cooling tower water and wind double-drive turbine type rotating water spraying nozzle, comprising a water guide rotor, a water guide stator, a wind turbine and a water turbine; the water guide rotor is connected with the helical guide vane by a rotating shaft, the bottom of the water guide rotor is connected with the water turbine and the wind turbine; the water guide stator comprises a water guide sleeve which is vertically arranged, the top of the outer part of the water guide sleeve is provided with an outer thread connected with a nozzle seat and a wrench position, a coaxial thrust sliding bearing is arranged in the upper part of the cylinder, the water guide rotor is coaxially arranged in the cylinder of the water guide stator, an axial limiting assembly is arranged above the thrust sliding bearing and is connected with the upper shaft neck connected with the rotating shaft which extends out of the thrust sliding bearing to suspend and support the water guide rotor; the helical guide vane is rotationally matched with the inner surface of the cylinder, a plurality of helical guide vanes divide the inner cavity of the cylinder into a plurality of helical flow channels which are connected with the U-shaped flow channel of the water turbine at the bottom to spray water outward. The present application can distribute the spraying water more uniformly, avoid the spraying blind area, reduce material consumption and be beneficial to environmental protection.

Description

Technical Field

[0001] This invention belongs to the field of cooling tower technology, specifically providing a cooling tower water-air dual-drive turbine-type rotating sprinkler head, which relates to the spraying and distribution of circulating water. Background Technology

[0002] The cooling of industrial circulating water is mainly completed in the cooling tower. After the circulating water enters the tower, it is gradually cooled from top to bottom in the spray zone, the packing zone and the rain zone, with the greatest temperature drop in the packing zone.

[0003] To fully utilize the cooling effect of the packing zone, it is desirable for the water from the nozzles to be evenly sprayed onto the top surface of the packing zone. However, it is not permissible to densely pack the nozzles above the packing, which would hinder airflow. Therefore, cooling towers place high demands on nozzle performance and distribution. Currently, the most commonly used nozzles in domestic cooling towers are reflective type II, reflective type III, basket-style three-splash, and rotary nozzles. Newer nozzle models in recent years have mostly focused on changing the shape, size, and number of splash plates and the water distribution teeth.

[0004] Existing sprinklers generally suffer from a small spraying area. This is because the water jet from the distribution pipe directly hits the various types of sprinkler bases, splashing outwards. The kinetic energy dissipates, resulting in an insufficient splashing area. Furthermore, areas with more splashing always have more water, while areas with less splashing always have less water, leading to uneven water distribution. Consequently, the spraying zone and the filler zone cannot fully function, which urgently needs to be addressed. Summary of the Invention

[0005] This invention provides a cooling tower water-air dual-drive turbine-type rotary sprinkler head, which aims to solve the technical problems of small spray area, insufficient splash area, and uneven water distribution that are common in existing sprinkler heads.

[0006] The technical solution of the present invention is as follows:

[0007] A cooling tower water-air dual-drive turbine-type rotary sprinkler head includes a water-guiding rotor, a water-guiding stator, an air turbine, and a water turbine; characterized in that...

[0008] The water-guiding rotor includes a rotating shaft 6, helical guide vanes 7, a hydraulic turbine 9, and a wind turbine 11. The top of the vertically mounted rotating shaft is connected to an upper journal 61. Multiple helical guide vanes 7 are evenly spaced and spirally wound around the rotating shaft in a clockwise direction. A coaxial annular rotor journal 8 is provided at the bottom of the rotating shaft. The upper end of the helical guide vane extends below the upper journal, and the lower end extends below the rotor journal. The inner surface of the rotor journal is integrally connected to the rotating shaft by connecting the edge of the helical guide vane. The bottom of the helical guide vane is connected to the synchronously rotating hydraulic turbine 9, and the lower part of the hydraulic turbine 9 is connected to the synchronously rotating wind turbine 11.

[0009] The water-guiding stator includes a water-guiding sleeve 1, which is vertically arranged. The top of the sleeve has an external thread 101 for connection to the nozzle seat, and a wrench position 102 is located below this thread. A coaxial thrust sliding bearing 104 is located in the upper part of the sleeve body and is fixed by multiple radially arranged connecting ribs 103 connected to the sleeve body. A coaxial radial sliding bearing 105 is located in the bottom of the sleeve body.

[0010] The water-guiding rotor is coaxially installed inside the cylinder of the water-guiding stator. The axial limiting assembly 62 is installed above the thrust sliding bearing and is connected to the upper journal extending from the thrust sliding bearing to suspend and support the water-guiding rotor. The spiral guide vane 7 rotates with the inner surface of the cylinder to form a cylindrical rotating pair. The multiple spiral guide vanes divide the inner cavity of the cylinder into multiple spiral flow channels, so that when the water flows downward, it rotates clockwise along the spiral guide vane, and its recoil force drives the rotor to rotate counterclockwise. The rotor journal rotates with the radial sliding bearing 105 to form a cylindrical rotating pair.

[0011] The hydraulic turbine 9 is located below the water guide stator. The hydraulic turbine is composed of multiple impellers 91 that are radially and symmetrically distributed outward from the rotating axis. Each impeller is a shell structure with a U-shaped cross-section, formed by a top plate 911, a bottom plate 912, and an arc-shaped side plate 913 arranged radially outward. The shell forms a U-shaped flow channel 92 that gradually narrows outward from the rotating axis, making the U-shaped cross-section smaller. The opening side of the U-shaped flow channel is the water outlet 93. Several arc-shaped blades 10 are arranged in the U-shaped flow channel to divide the U-shaped flow channel into several branch channels, which divide the water spray into several streams.

[0012] A corresponding impeller is connected to the bottom of each spiral flow channel and the U-shaped flow channel of the impeller is connected; the water outlet of each impeller faces the clockwise direction, so that the water sprays out clockwise, and its recoil force drives the rotor to rotate counterclockwise; the wind turbine 11 is installed at the bottom of the impeller.

[0013] The cooling tower water-air dual-drive turbine-type rotary sprinkler head, wherein each of the spiral flow channels is connected at its bottom sidewall to the sidewall of the U-shaped flow channel of the impeller, sealing the bottom of the spiral flow channel; the two spiral guide vanes of each spiral flow channel are divided into a rear spiral guide vane 72 and a front spiral guide vane 71 according to their position in the spiral rotation direction; the top plate, arc-shaped side plate and bottom plate of the impeller are sequentially and smoothly connected to the corresponding rotor journal, the rear spiral guide vane, the rotating shaft and the edge of the front spiral guide vane; the arc-shaped side plate is curved in an arc shape along the spiral rotation direction of the spiral flow channel; the water outlet is an opening formed by the front spiral guide vane and the outer edge of the top plate, bottom plate and arc-shaped side plate, and extends from the rotor journal to the end of the arc-shaped side plate; the top and bottom of each arc-shaped blade 10 are fixedly connected to the top plate and bottom plate.

[0014] The cooling tower water-air dual-drive turbine-type rotary sprinkler head has the following configuration: each of the arc-shaped blades 10 is arranged along the arc-shaped side plate and gradually shortens along the spiral rotation direction; the bottom plate of the U-shaped flow channel is provided with two arc-shaped water inlet grooves 13 near the center of the turbine to vertically guide part of the water spray downwards.

[0015] The cooling tower water-wind dual-drive turbine-type rotary sprinkler head includes a water turbine with four impellers. Each impeller 91 has a radially outward-oriented wind turbine blade 111 connected to its base plate. The impellers and wind turbine blades are connected by a cross-shaped turbine connecting rib 14 located at the center of the water turbine. The wind turbine blades are propeller-type and twisted clockwise. The twisted wind turbine blades cause the air flowing from bottom to top to rotate clockwise, and the recoil force drives the rotor to rotate counterclockwise. The windward rectifier plate 12 encloses the windward sides of the impellers and wind turbine blades to form a streamlined convex surface.

[0016] The cooling tower water-air dual-drive turbine-type rotary sprinkler head is described above, wherein the cross-section of the spiral guide vane is arc-shaped; there is a gap between the spiral guide vane and the water guide sleeve; and the radial sliding bearing and rotor journal are made of self-lubricating organic materials.

[0017] The cooling tower water-air dual-drive turbine-type rotary sprinkler head, wherein the inner cylindrical surface of the lower port of the water guide sleeve is slightly inward to form the radial sliding bearing 105; the rotor journal and the radial sliding bearing have a radial clearance; the thrust sliding bearing 104 is an annular body, which is fixed to the upper inner cylindrical surface of the water guide sleeve by three connecting ribs 103, and the top annular plane of the annular body is the thrust surface of the bearing; the entire water guide rotor is suspended on the thrust sliding bearing.

[0018] The cooling tower water-air dual-drive turbine-type rotary sprinkler head includes an upper journal 61 with a vertical cross groove 5 along a symmetrical axis, dividing the upper end of the journal into four columns forming a cross-shaped expansion claw 4. The top of each column has a conical barb 41. The axial limiting assembly 62 includes a thrust box 3 and a cross key 2. The thrust box is a hollow box with a top cover with a cross hole 33 and a bottom cover with a central hole 31, which is the thrust ring 32. After the conical barbs of the four columns are compressed and elastically contracted, they pass through the thrust ring and enter the thrust box, then elastically recover. The four conical barbs hang on the thrust ring, which presses against the thrust sliding bearing. The lower surface of the thrust ring and the thrust surface of the thrust sliding bearing rotate together to form a planar rotating pair. The diameter of the central hole of the thrust ring is slightly smaller than the inner diameter of the inner ring of the thrust bearing.

[0019] A cross key 2 is provided corresponding to the cross groove 5. It is a key body with a cross-shaped cross-section and an integral structure. The cross key is inserted from the top of the thrust box downward into the cross hole 33 and the cross groove 5 between the four flower columns and locked and limited. When the rotor rotates, the flower columns rotate together with the cross key, and the cross key rotates together with the top plate of the thrust box and the thrust box, so that the thrust box and the rotor become an integral structure that rotates together.

[0020] The cooling tower water-air dual-drive turbine-type rotary sprinkler head has four single key bodies 22 arranged in a cross shape, each with a vertical rectangular through hole 23 on its upper part. The key body can elastically deform with the help of the rectangular through hole. A protruding conical buckle 21 is provided on the outer wall of the rectangular through hole, and the bottom is recessed inward. When the cross key is inserted, the conical surface is squeezed to deform and shrink the key body towards the rectangular through hole. After passing the top plate of the thrust box, the key body elastically recovers and the conical buckle is locked under the top cover for limiting.

[0021] Technical features of the present invention:

[0022] When the cooling tower is working, the circulating water is distributed to each nozzle seat through the spray pipe, enters the water guide sleeve, spirals downward and rotates clockwise. Its recoil force is the primary driving force that pushes the rotor to rotate counterclockwise.

[0023] The circulating water flows smoothly into the hydraulic turbine from the bottom of the water guide sleeve. Except for a small portion that flows downward from the arc-shaped water inlet at the bottom of the turbine, most of the circulating water is diverted to each U-shaped flow channel and sprayed out horizontally in a clockwise direction. Its recoil force is the secondary driving force that drives the water guide rotor to rotate counterclockwise, and it is also the main driving force, which sprays the circulating water out at the same time.

[0024] The airflow from below the cooling tower is drawn upward by the fan at the top of the tower. When it passes the wind turbine blades, it becomes clockwise and obliquely upward. Its recoil force is the three driving forces that push the rotor to rotate counterclockwise.

[0025] The thrust of these three mechanisms is in the same direction, and together they drive the water guide rotor and the hydraulic turbine to spray circulating water while rotating.

[0026] The beneficial effects of this invention are:

[0027] This invention offers superior spraying performance compared to fixed nozzles, with the following advantages: 1) More uniform water distribution: The rotation of the water guide rotor and hydraulic turbine avoids blind spots, resulting in a more uniform distribution of circulating water on the packing material. 2) Improved efficiency: Compared to conventional cooling towers with the same energy consumption, the circulating water capacity can be increased, leading to improved efficiency; or, with the same energy consumption and capacity, the circulating water can be cooled to a lower temperature. 3) Energy saving and environmental protection: By fully utilizing the existing hydraulic and wind kinetic energy within the tower, the radius of the spray circle is increased, reducing the windbreak area and reducing wind resistance in the spray zone, thus lowering the required spray head and saving energy. The increased spray circle also reduces the number of nozzles, decreasing material consumption and contributing to environmental protection. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the water-guiding rotor structure;

[0030] Figure 3 for Figure 2 Schematic diagram of section AA,

[0031] Figure 4 for Figure 2 Schematic diagram of the BB cross section.

[0032] Figure 5 Schematic diagram of water guide sleeve;

[0033] Figure 6 This is a top view of the water guide sleeve;

[0034] Figure 7 This is a schematic diagram of a cross-shaped key structure;

[0035] Figure 8 This is a top view of the cross-shaped key structure.

[0036] Figure 9 This is a schematic diagram of the thrust box structure;

[0037] Figure 10 This is a top view of the thrust box structure.

[0038] Figure 11 This is a schematic diagram of the elevation structure of a hydraulic turbine.

[0039] Figure 12A top-view cross-sectional view of the flow channel of a hydraulic turbine;

[0040] Figure 13 This is a top view schematic diagram of a hydraulic turbine;

[0041] Figure 14 A top view of the front fairing;

[0042] Figure 15 A bottom view of the hydraulic turbine and wind turbine at the bottom of the water guide rotor;

[0043] Figure 16 A bottom view of a wind turbine;

[0044] Figure 17 This is a schematic diagram of the overall structure of the present invention, connecting the nozzle holder;

[0045] Explanation of the attached drawing numbers:

[0046] 1. Water guide sleeve; 101. External thread; 102. Wrench position; 103. Connecting rib; 104. Thrust sliding bearing; 105. Radial sliding bearing; 2. Cross key; 21. Conical snap fastener; 22. Single key body; 23. Rectangular through hole; 3. Thrust box; 31. Center hole; 32. Thrust ring; 33. Cross hole; 4. Expansion claw; 41. Conical barb; 5. Cross groove; 6. Rotating shaft; 61. Upper journal; 62. Axial limiting assembly; 7. Helical guide vane. 72 rear spiral guide vane, 71 front spiral guide vane, 8 rotor journal, 9 hydraulic turbine, 91 impeller, 911 top plate, 912 bottom plate, 913 arc-shaped side plate, 92 U-shaped flow channel, 93 water inlet, 10 arc-shaped blade, 11 wind turbine, 111 wind turbine blade, 12 windward rectifier plate, 13 arc-shaped water inlet groove, 14 turbine connecting rib, 15 nozzle seat, 151 nozzle seat wrench position, 16 spray pipe. Detailed Implementation

[0047] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0048] See Figure 1-17 As shown, a cooling tower water-wind dual-drive turbine-type rotary sprinkler head of the present invention includes a water guide rotor, a water guide stator, a wind turbine, and a water turbine.

[0049] See Figure 2As shown, the water-guiding rotor includes a rotating shaft 6, helical guide vanes 7, a hydraulic turbine 9, and a wind turbine 11. The top of the vertically mounted rotating shaft is connected to an upper journal 61. Multiple helical guide vanes 7 are evenly spaced and spirally wound around the rotating shaft in a clockwise direction. A coaxial annular rotor journal 8 is provided at the bottom of the rotating shaft. The upper end of the helical guide vane extends below the upper journal, and the lower end extends below the rotor journal. The inner surface of the rotor journal is integrally connected to the rotating shaft by connecting the edge of the helical guide vane. The bottom of the helical guide vane is connected to the synchronously rotating hydraulic turbine 9, and the lower part of the hydraulic turbine 9 is connected to the synchronously rotating wind turbine 11.

[0050] See Figure 5 , 6 As shown, the water guide stator includes a water guide sleeve 1, which is vertically arranged. The top of the sleeve has an external thread 101 for connection to the nozzle seat, and a wrench position 102 is located below this thread. A coaxial thrust sliding bearing 104 is located in the upper part of the sleeve body and is fixed by multiple radially arranged connecting ribs 103 connected to the sleeve body. A coaxial radial sliding bearing 105 is located in the bottom of the sleeve body.

[0051] See Figure 1 As shown, the water-guiding rotor is coaxially installed inside the cylinder of the water-guiding stator. The axial limiting assembly 62 is installed above the thrust sliding bearing 104 and is connected to the upper journal 61 extending from the thrust sliding bearing to suspend and support the water-guiding rotor. The spiral guide vane 7 rotates with the inner surface of the cylinder to form a cylindrical rotating pair. Multiple spiral guide vanes 7 divide the inner cavity of the cylinder into multiple spiral flow channels, so that when the water flows downward, it rotates clockwise along the spiral guide vane, and its recoil force drives the rotor to rotate counterclockwise. The rotor journal 8 rotates with the radial sliding bearing 105 to form a cylindrical rotating pair.

[0052] See Figure 1-4 As shown in Figure 12, the hydraulic turbine 9 is located below the water guide stator; the hydraulic turbine is composed of multiple impellers 91 radially and symmetrically distributed outward from the rotating shaft 6. Each impeller is a shell structure with a U-shaped cross-section, surrounded by a top plate 911, a bottom plate 912, and an arc-shaped side plate 913 arranged radially outward. The U-shaped flow channel 92 inside the shell gradually contracts outward from the rotating shaft, so that the U-shaped cross-section becomes smaller; the opening side of the U-shaped flow channel is the water outlet 93. Several arc-shaped blades 10 are arranged in the U-shaped flow channel, dividing the U-shaped flow channel into several branch channels and spraying the water in several streams;

[0053] A U-shaped flow channel is connected to the bottom of each of the spiral flow channels and is connected to the impeller. See [reference needed]. Figure 12As shown; the water outlet 93 of each impeller faces clockwise, so that the water sprays out clockwise, and its recoil force drives the rotor to rotate counterclockwise; the wind turbine 11 is installed at the bottom of the impeller.

[0054] See Figure 1-4 As shown in Figures 11 and 12, a cooling tower water-air dual-drive turbine-type rotary sprinkler head is described, wherein each of the spiral flow channels is connected at its bottom sidewall to the sidewall of the U-shaped flow channel of the impeller, sealing the bottom of the spiral flow channel; the two spiral guide vanes of each spiral flow channel are divided into a rear spiral guide vane 72 and a front spiral guide vane 71 according to their position in the spiral rotation direction; the top plate, arc-shaped side plate, and bottom plate of the impeller are sequentially and smoothly connected to the corresponding rotor journal, the rear spiral guide vane, the rotating shaft, and the edge of the front spiral guide vane; the arc-shaped side plate 913 is curved in an arc shape along the spiral rotation direction of the spiral flow channel; the outlet 93 is an opening formed by the front spiral guide vane 71, the top plate 911, the bottom plate 912, and the outer edge of the arc-shaped side plate 913, and extends from the rotor journal 8 to the end of the arc-shaped side plate 913; the top and bottom of each arc-shaped blade 10 are fixedly connected to the top plate and the bottom plate.

[0055] See Figure 12 As shown, in the cooling tower water-air dual-drive turbine-type rotary sprinkler head, each of the arc-shaped blades 10 is arranged along the arc-shaped side plate, gradually shortening from long to short along the spiral rotation direction; the bottom plate of the U-shaped flow channel is provided with two arc-shaped water inlet grooves 13 near the center of the turbine, which vertically guide some of the water downwards.

[0056] See Figure 1 , 2 As shown in Figures 11, 15, and 16, a cooling tower water-air dual-drive turbine-type rotary sprinkler head is described. The water turbine has four impellers, and each impeller 91 has a radially outward-oriented wind turbine blade 111 connected to its base plate. The impellers and wind turbine blades are connected by a cross-shaped turbine connecting rib 14 located at the center of the water turbine. The wind turbine blade has a propeller-like structure and is clockwise twisted. The twisted wind turbine blade causes the upward-flowing air to rotate clockwise simultaneously, and its recoil force drives the rotor to rotate counterclockwise. (See also...) Figure 13 , 14 As shown in Figure 15, the windward rectifier plate 12 encloses the windward side of the impeller and the wind turbine blades to form a streamlined convex surface.

[0057] See Figure 1 , 2As shown in Figure 12, the cooling tower water-air dual-drive turbine-type rotary sprinkler head has an arc-shaped cross-section for the spiral guide vane; there is a gap between the spiral guide vane and the water guide sleeve; the radial sliding bearing and the rotor journal are made of self-lubricating organic materials, which are commonly used materials in existing technologies and will not be described in detail here.

[0058] See Figure 4 , 5 As shown, in a cooling tower water-air dual-drive turbine-type rotary sprinkler head, the inner cylindrical surface of the lower end of the water guide sleeve is slightly concave to form the radial sliding bearing 105; the rotor journal 8 has a radial clearance with the radial sliding bearing; the thrust sliding bearing 104 is an annular body, which is fixed to the upper inner cylindrical surface of the water guide sleeve by three connecting ribs 103, and the top annular plane of the annular body is the thrust surface of the bearing; the entire water guide rotor is suspended on the thrust sliding bearing.

[0059] See Figure 1 , 2 As shown in Figure 13, the cooling tower water-air dual-drive turbine-type rotary sprinkler head includes a vertical cross groove 5 with a symmetrical axis at the upper end of the upper journal 61, dividing the upper end of the upper journal into four columns, forming a cross-shaped expansion claw 4, with a conical barb 41 at the top of the column; the axial limiting assembly 62 includes a thrust box 3 and a cross key 2, see [reference]. Figure 7-10 As shown, the thrust box is a hollow box with a top cover with a cross hole 33 and a bottom cover with a central hole 31. This central hole 31 is the thrust ring 32. The four cone-shaped barbs of the flower column elastically contract under pressure, pass through the thrust ring, enter the thrust box, and then elastically recover. The four cone-shaped barbs hang on the thrust ring, which presses against the thrust sliding bearing 104. The lower surface of the thrust ring 32 and the thrust surface of the thrust sliding bearing rotate together to form a planar rotating pair. The diameter of the central hole of the thrust ring is slightly smaller than the inner diameter of the inner ring of the thrust bearing.

[0060] A cross key 2 is provided corresponding to the cross groove 5. This key is a single-piece structure with a cross-shaped cross-section. The cross key is inserted from the top of the thrust box downwards into the cross hole 33 and the cross groove 5 between the four flower columns, where it is locked and limited. When the rotor rotates, the flower columns rotate with the cross key, and the cross key rotates with the top plate of the thrust box and the thrust box itself, making the thrust box and the rotor a single rotating structure. (See also...) Figure 1 As shown.

[0061] See Figure 7 , 8As shown, a cooling tower water-air dual-drive turbine-type rotary sprinkler head is provided, wherein the four single key bodies 22 of the cross key are provided with vertical rectangular through holes 23 on the upper part, and the key body can be elastically deformed by means of the rectangular through holes. When compressed, it can shrink inward. A protruding conical buckle 21 is provided on the outer wall of the rectangular through hole and the bottom is recessed inward. When the cross key is inserted, the conical surface is squeezed to deform and shrink the key body towards the rectangular through hole. After passing the top plate of the thrust box, the key body elastically recovers and the conical buckle is locked under the top cover for limiting.

[0062] Technical features of the present invention:

[0063] When the cooling tower is working, see Figure 17 As shown, the circulating water is distributed to each nozzle seat 15 through the spray pipe 16, enters the water guide sleeve 1, spirals downward and rotates clockwise, and its recoil force is the primary driving force that pushes the water guide rotor to rotate counterclockwise.

[0064] Circulating water flows smoothly into the hydraulic turbine from the bottom of the guide sleeve. See [link / reference] Figure 1 , 11 As shown in Figure 12, except for a small portion that flows downward from the arc-shaped water inlet at the bottom of the turbine, most of the circulating water is diverted to each U-shaped channel 92 and sprayed out horizontally in a clockwise direction. Its recoil force is the secondary driving force that drives the water guide rotor to rotate counterclockwise, and it is also the main driving force, while spraying the circulating water out.

[0065] The airflow below the cooling tower is drawn upwards against the current by the fan at the top of the tower. As it passes the turbine blades, it is expelled clockwise. (See below) Figure 15 , 16 As shown, its recoil force consists of three thrusts that drive the rotor to rotate counterclockwise. These three thrusts are in the same direction and work together to drive the water guide rotor and the hydraulic turbine, which spray circulating water while rotating.

[0066] The technical solution of the present invention is further explained below:

[0067] 1) Basic configuration: The wind turbine is connected below the water turbine, which is connected to the rotating shaft to form the rotor. The upper part of the water guide sleeve is threaded to the nozzle seat, and the water guide sleeve is the stator. The rotating shaft is inserted into the water guide sleeve, and the rotor and stator are connected through the upper and lower bearings of the water guide sleeve.

[0068] 2) U-shaped flow channel hydraulic turbine: Water sprays out from the U-shaped opening of the U-shaped flow channel, and the recoil force drives the hydraulic turbine to rotate. The U-shaped flow channel narrows from the center outwards. Several arc-shaped blades are distributed within the U-shaped flow channel, splitting the water spray into several streams; the blades gradually increase in length from the center outwards. Near the center of the bottom plate of the U-shaped flow channel are two arc-shaped water inlet channels, which guide some of the water vertically downwards, preventing the turbine center from being without water.

[0069] 3) Twisted-surface wind turbine: The blades of the wind turbine are twisted. The wind blows from the bottom onto the twisted surface, driving the wind turbine to rotate. The rotation direction of the wind turbine is the same as that of the water turbine.

[0070] 4) Windward rectifier: The water turbine and the wind turbine have different shapes. The concave surface at the connection between the two turbines has a "wind-catching" effect, which increases the turbine rotation resistance. The windward rectifier 12 encloses the windward sides of the water turbine and the wind turbine to form a convex surface. Its "wind-cutting" rectification effect can significantly reduce the wind resistance when the two turbines are rotating.

[0071] 5) Turbine Shaft Helical Guide Vanes: Helical guide vanes are installed on the turbine shaft inside the guide sleeve, rotating with the shaft. Water from the nozzle seat enters the guide sleeve, spirals downwards along the guide vanes, and enters the four U-shaped flow channels of the hydraulic turbine. The recoil force of the water flowing downwards along the helical guide vanes inside the guide sleeve drives the shaft to rotate. The direction of shaft rotation driven by the helical recoil is the same as the direction of hydraulic turbine rotation. The gap between the outer diameter of the helical guide vanes and the inner diameter of the guide sleeve is 2.5mm, resulting in minimal internal leakage of water and high utilization of the downward spiral kinetic energy. The cross-section of the helical guide vanes is an arc-shaped surface, and its "water-catching" effect improves the efficiency of converting the downward water kinetic energy into the rotational kinetic energy of the shaft.

[0072] 6) Lower radial sliding bearing of the sleeve: The inner cylindrical surface of the lower end of the water guide sleeve is slightly concave to form a radial sliding bearing at the lower end of the stator. Corresponding to the position of the radial sliding bearing at the lower end of the stator, a rotor journal is provided on the shaft, with a radial clearance of 0.5mm between the rotor journal and the sliding bearing. Both the stator bearing and the rotor journal are made of self-lubricating organic materials (self-lubricating organic materials are a mature and well-known technology).

[0073] 7) Upper thrust sliding bearing of the sleeve: On the inner cylindrical surface of the upper part of the water guide sleeve, three connecting ribs support the annular body at the center of the sleeve. This annular body is the thrust sliding bearing 104 at the upper part of the sleeve. The entire rotor is suspended on the thrust sliding bearing. The top annular plane of this annular body is the thrust surface of the bearing.

[0074] 8) The upper end of the rotor has a cross-shaped stamen and a cone-shaped barb: The upper end of the water guide rotor is shaped like a cross-shaped stamen. The cross groove divides the upper end of the rotor into four flower columns, and the top of the flower columns is a cone-shaped barb.

[0075] 9) A thrust box is installed at the upper end of the rotor: The thrust box is a hollow circular box. The diameter of the circular hole in the bottom plate of the box is slightly smaller than the inner diameter of the thrust bearing annulus. The bottom plate of the thrust box is called the thrust ring, which allows the four ferrules at the upper end of the rotor to pass through. A cross hole is opened in the top plate of the box, and the upper end of the rotor is not allowed to pass through.

[0076] 10) Key points for rotor upper end assembly: The distribution circle diameter of the cone apex of the upper rotor is smaller than the diameter of the thrust box bottom hole and also smaller than the inner diameter of the thrust bearing annulus. The distribution circle diameter of the cone base is larger than the diameter of the thrust box bottom hole. The outer diameter of the distribution circle below the cone hook is smaller than the diameter of the thrust box bottom hole. When the four cones at the upper end of the rotor pass through the thrust bearing annulus and the thrust box bottom hole, the cone surface of the cone head is compressed. The cross groove between the cones allows the cones to bend towards the rotor shaft to reduce the distribution circle diameter of the four cone bases, allowing the cone head to pass through the annulus and the thrust box bottom hole. After the cone heads of the four cones pass through the thrust ring (thrust box bottom hole), the four cones elastically recover, and the four cone hooks hang on the thrust ring, transferring gravity to the thrust bearing. Due to the need for flexible installation of the flower columns, the cross grooves between the flower columns are necessary. Therefore, the cone head barbs of the flower columns cannot fill 360° on their distribution circle. If the cone head barbs are allowed to rub directly against the thrust bearing, the sliding friction area will be small, the friction stress borne by the barbs and the shear force borne by the flower columns will be large, and the service life will be relatively short.

[0077] After the thrust box is installed, the cone-shaped barb hangs on the thrust ring. The thrust ring and the rotor are assembled as one unit and rotate together. The thrust ring and the thrust bearing are in 360° contact. The sliding friction area is large, and the friction stress borne by the barb and the shear force borne by the flower column are small, which can extend the service life.

[0078] 11) A cross key is installed on the thrust box: After the conical heads of the four flower columns at the top of the rotor are inserted into the thrust box, the cross key is inserted downwards from the top of the thrust box through the cross hole in the top plate of the thrust box, and then further downwards into the cross slot between the four flower columns. When the rotor rotates, the flower columns rotate with the cross key, and the cross key rotates with the top plate of the thrust box, thus rotating the thrust box as a whole. Therefore, the thrust box, its base plate thrust ring, and the rotor become a rotating unit. After the cross key is inserted downwards into the cross hole in the top plate of the thrust box and the cross slot of the flower columns, it is not allowed to retract upwards due to running vibrations. Therefore, eight conical hook-type conical clips 21 are provided on the outer wall of the cross key body. When the cross key is inserted downwards, after pressing the conical clips 21 past the top plate of the thrust box, it elastically returns to its original position and locks under the top plate, preventing it from retracting further.

[0079] The cross-key conical snap fastener 21 is commonly known as the barb. Before the cross-key barb elastically returns to its original position, it must elastically contract inward, which requires space for contraction. Therefore, the upper part of the four key bodies of the cross-key is designed to be hollow (with rectangular through holes on the top surface). When the cross-key is inserted, the conical surfaces of the barbs on both sides of the key body are pressed into the cross holes on the top plate of the thrust box, and the key body elastically contracts inward. Once the conical barb passes over the top plate, the key body elastically returns to its original position, and the conical barb is stuck under the top plate. The cross-key then locks the upper end of the rotor to the thrust box, and the cross-key can no longer be retracted.

[0080] Example

[0081] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Obviously, it is impossible to exhaustively describe all technical solutions and embodiments within the scope of the present invention. All other embodiments without obvious inventiveness proposed by those skilled in the art based on the present invention are within the scope of protection of the present invention.

[0082] A cooling tower nozzle seat is threadedly connected to the water guide sleeve of this invention, see [link / reference]. Figure 17 As shown, the internal pipe thread on the nozzle holder is G76.

[0083] Based on the nozzle seat dimensions, the water guide sleeve 1 is designed with corresponding dimensions. The upper external thread 101 of the water guide sleeve has a dimension of G76, the lower cylindrical outer diameter is 76mm, the inner diameter is 70mm, and the height is 111mm; the upper wrench position 102 is octagonal, or simply octagonal, with the apex distance of the octagon being 86mm.

[0084] A thrust sliding bearing 104 is installed at the center of the upper part of the water guide sleeve. The inner diameter of the thrust sliding bearing ring is 15mm, the outer diameter is 21mm, and the height is 5mm. The lower end of the water guide sleeve is slightly recessed to form a radial sliding bearing 105. The inner diameter of the radial sliding bearing ring is 66mm, the outer diameter is 76mm, and the height is 8mm.

[0085] The rotor spiral guide vane 7 has a height of 94mm and an outer diameter of 65mm, and can pass through the radial sliding bearing from bottom to top.

[0086] The cone apex of the four flower-shaped cones 4 at the upper end of the rotor has a diameter of 13.6 mm, which is smaller than the inner diameter of the thrust sliding bearing ring (15 mm) and also smaller than the inner diameter of the thrust ring 32 (14 mm). The cone apex of the four flower-shaped cones at the upper end of the rotor can be easily inserted into the thrust sliding bearing 104 and also into the thrust box 3.

[0087] The diameter of the cone base of the four flower-shaped cones 4 at the top of the rotor is 18.6 mm. After the four flower-shaped cones elastically contract towards the center, the diameter of the cone base shrinks to 13.6 mm, which is smaller than the inner diameter of the thrust sliding bearing ring (15 mm) and also smaller than the inner diameter of the thrust ring 32 (14 mm). The four flower-shaped cones at the top of the rotor can easily pass through the thrust sliding bearing 104 and the thrust ring 32 of the thrust box 3.

[0088] When assembling the nozzle, the water guide sleeve 1 is upright, the thrust box 3 is placed on the thrust sliding bearing 104, and the rotor is inserted from the lower end of the sleeve, passing through the radial sliding bearing 105. When it is about to reach the thrust sliding bearing 104, the four flower columns at the upper end of the rotor are squeezed by hand and contracted towards the center. The cones 4 of the four flower columns pass through the thrust sliding bearing 104 and the thrust ring 32 of the thrust box 3. The four flower columns elastically recover, and the cone bottoms of the cones hang on the thrust ring 32. The entire rotor is then suspended on the thrust sliding bearing 104.

[0089] Next, place the cross key 2 from the upper port of the water guide sleeve 1 onto the thrust box 3, aligning it with the cross hole 33 on the thrust box. Press the cross key down. When the conical buckle 21 on the cross key body passes the cross hole 33 on the top plate of the thrust box, the cross key 2 elastically returns to its original position. The conical buckle 21 locks the lower edge of the top plate of the thrust box 3, locking the four flower columns 4 at the upper end of the rotor, the cross key 2, and the thrust box 3 into one unit. The thrust box 3 then becomes part of the rotor and rotates together with the turbine at the lower part of the rotor. Thus, the thrust sliding bearing 104 supports the weight of the entire rotor.

[0090] After the rotor is assembled, screw the water guide sleeve 1 onto the nozzle seat, and tighten it by clamping the "octagon" of the wrench position 102 with a wrench to complete the installation of the spray pipe.

Claims

1. A cooling tower water-wind dual-drive turbine-type rotary sprinkler head, comprising a water-guiding rotor, a water-guiding stator, a wind turbine, and a water turbine; characterized in that, The water-guiding rotor includes a rotating shaft (6), a spiral guide vane (7), a hydraulic turbine (9), and a wind turbine (11). The top of the vertically mounted rotating shaft is connected to an upper journal (61). Multiple spiral guide vanes (7) are spirally wound around the rotating shaft at equal intervals in a clockwise direction. A coaxial annular rotor journal (8) is provided at the bottom of the rotating shaft. The upper end of the spiral guide vane extends below the upper journal, and the lower end extends below the rotor journal. The inner surface of the rotor journal is integrally connected to the rotating shaft by connecting the edge of the spiral guide vane. The bottom of the spiral guide vane is connected to the synchronously rotating hydraulic turbine (9), and the lower part of the hydraulic turbine (9) is connected to the synchronously rotating wind turbine (11). The water guide stator includes a water guide sleeve (1), which is vertically arranged. The top of the water guide sleeve is provided with an external thread (101) for connecting to the nozzle seat, and a wrench position (102) is provided below the external thread. A coaxial thrust sliding bearing (104) is provided in the upper part of the sleeve body, and is connected and fixed by multiple radially arranged connecting ribs (103) connected to the sleeve body. A coaxial radial sliding bearing (105) is provided in the bottom of the sleeve body. The water-guiding rotor is coaxially installed inside the cylinder of the water-guiding stator. The axial limiting assembly (62) is installed above the thrust sliding bearing and is connected to the upper journal extending from the thrust sliding bearing to suspend and support the water-guiding rotor. The spiral guide vane (7) rotates with the inner surface of the cylinder to form a cylindrical rotating pair. The multiple spiral guide vanes divide the inner cavity of the cylinder into multiple spiral flow channels, so that when the water flows downward, it rotates clockwise along the spiral guide vane, and its recoil force drives the rotor to rotate counterclockwise. The rotor journal rotates with the radial sliding bearing (105) to form a cylindrical rotating pair. The hydraulic turbine (9) is located below the water guide stator; the hydraulic turbine is composed of multiple impellers (91) radially and symmetrically distributed from the axis of rotation outwards. Each impeller is a shell structure with a U-shaped cross-section, surrounded by a top plate (911), a bottom plate (912), and an arc-shaped side plate (913) arranged radially outwards. The shell forms a U-shaped flow channel (92) that gradually contracts outwards from the axis of rotation, making the U-shaped cross-section smaller and smaller. The opening side of the U-shaped flow channel is the outlet (93). Several arc-shaped blades (10) are arranged in the U-shaped flow channel to divide the U-shaped flow channel into several branch channels, which divide the water spray into several streams and spray them out. A corresponding impeller is connected to the bottom of each spiral flow channel and the U-shaped flow channel of the impeller is connected; the water outlet of each impeller faces the clockwise direction, so that the water sprays out clockwise and its recoil force drives the rotor to rotate counterclockwise; the wind turbine (11) is installed at the bottom of the impeller.

2. The cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 1, characterized in that, Each of the spiral channels is connected at the bottom sidewall to the sidewall of the U-shaped channel of the impeller, and seals the bottom of the spiral channel; the two spiral guide vanes of each spiral channel are divided into a rear spiral guide vane (72) and a front spiral guide vane (71) according to their position in the spiral rotation direction; the top plate, arc-shaped side plate and bottom plate of the impeller are smoothly connected in sequence to the corresponding rotor journal, the rear spiral guide vane, the rotating shaft and the edge of the front spiral guide vane; the arc-shaped side plate is curved in an arc shape along the spiral rotation direction of the spiral channel; the outlet is an opening formed by the front spiral guide vane and the outer edge of the top plate, bottom plate and arc-shaped side plate, and extends from the rotor journal to the end of the arc-shaped side plate; The top and bottom of each of the arc-shaped blades (10) are fixedly connected to the top plate and the bottom plate.

3. The cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 2, characterized in that, Each of the arc-shaped blades (10) is arranged along the arc-shaped side plate, gradually shortening from long to short along the spiral rotation direction; the bottom plate of the U-shaped flow channel is provided with two arc-shaped water inlet grooves (13) near the center of the turbine, which vertically guide some of the water droplets downward.

4. A cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 3, characterized in that, The hydraulic turbine is equipped with four impellers. Each impeller (91) has a radially outward-oriented wind turbine blade (111) connected to its base plate. The impellers and the inner ends of the wind turbine blades are connected by a cross-shaped turbine connecting rib (14) located at the center of the hydraulic turbine. The wind turbine blades are propeller-type and twisted clockwise. The twisted wind turbine blades cause the air flowing from bottom to top to rotate clockwise at the same time, and its recoil force drives the rotor to rotate counterclockwise. The windward rectifier plate (12) encloses the windward sides of the impellers and wind turbine blades to form a streamlined convex surface.

5. A cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 4, characterized in that, The cross-section of the spiral guide vane is arc-shaped; there is a gap between the spiral guide vane and the water guide sleeve; the materials of the radial sliding bearing and the rotor journal are self-lubricating organic materials.

6. A cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 5, characterized in that, The inner cylindrical surface of the lower end of the water guide sleeve is slightly concave to form the radial sliding bearing (105); there is a radial clearance between the rotor journal and the radial sliding bearing; the thrust sliding bearing (104) is an annular body, which is fixed to the upper inner cylindrical surface of the water guide sleeve by three connecting ribs (103), and the top annular plane of the annular body is the thrust surface of the bearing; the entire water guide rotor is suspended on the thrust sliding bearing.

7. A cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 6, characterized in that, The upper end of the upper journal (61) is provided with a vertical cross groove (5) with a symmetrical axis, which divides the upper end of the upper journal into four flower columns, forming a cross-shaped expansion claw (4). The top of the flower column is a cone-shaped barb (41). The axial limiting assembly (62) includes a thrust box (3) and a cross key (2). The thrust box is a hollow box body. The top of the box is provided with a top cover with a cross hole (33), and the bottom of the box is provided with an annular bottom cover with a center hole (31). The annular bottom cover is the thrust ring (32). After the cone-shaped barbs of the four flower columns are compressed and elastically contracted, they pass through the thrust ring and enter the thrust box and elastically recover. The four cone-shaped barbs hang on the thrust ring. The thrust ring presses on the thrust sliding bearing. The lower surface of the thrust ring and the thrust surface of the thrust sliding bearing rotate to form a planar rotating pair. The diameter of the center hole of the thrust ring is slightly smaller than the inner diameter of the inner ring of the thrust bearing. A cross key (2) is provided corresponding to the cross groove (5). It is a key body with a cross-shaped cross section and an integral structure. The cross key is inserted from the top of the thrust box downward into the cross hole (33) and the cross groove (5) between the four flower columns and locked and limited. When the rotor rotates, the flower columns rotate together with the cross key, and the cross key rotates together with the top plate of the thrust box and the thrust box, so that the thrust box and the rotor become an integral structure that rotates together.

8. A cooling tower water-air dual-drive turbine-type rotary sprinkler head as described in claim 7, characterized in that, The cross key has four single key bodies (22) arranged in a cross shape with vertical rectangular through holes (23) on the upper part. The key body can be elastically deformed by means of the rectangular through holes. There is a protruding conical buckle (21) on the outer wall of the rectangular through hole and the bottom is recessed inward. When the cross key is inserted, the conical surface is squeezed to deform and shrink the key body towards the rectangular through hole. After passing the top plate of the thrust box, the key body elastically recovers and the conical buckle is locked under the top cover for limiting.

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