Cooling tower spray header and spray device

Abstract

The utility model discloses a cooling tower spraying head and a spraying device, and relates to the technical field of cooling towers, the cooling tower spraying head comprises a spraying pipe, a splashing wheel and a flow guide disc, the spraying pipe comprises a main body and an adjusting ring, a water spraying cavity is formed in the main body, and the upper end and the lower end of the main body are respectively provided with a water inlet and a water outlet which are communicated with the water spraying cavity; the main body is sleeved with the adjusting ring, an annular sliding groove is formed in the peripheral wall of the adjusting ring in the circumferential direction of the adjusting ring, a guide table is arranged in the sliding groove in the circumferential direction of the adjusting ring, and the top wall structure of the guide table is arranged in a wavy shape; the wheel body is arranged below the water outlet and can rotate along the axis of the wheel body relative to the spray pipe, the connecting ring surrounds the outer side of the adjusting ring, one end of the adjusting arm is connected with the inner circumferential wall of the connecting ring, and the other end of the adjusting arm extends into the sliding groove to abut against the top wall of the guide table. The utility model aims to diffuse the spraying radius of the nozzle and improve the cooling efficiency and the cooling effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a cooling tower spray head and a spray device. Background Art

[0002] A cooling tower is a cooling device that sprays hot water onto the water-spraying filler inside the tower to form water droplets or a water film. This water transfers heat from top to bottom through convection with the heat-absorbing cold air flowing from bottom to top, and uses the evaporation and diffusion of water to remove the heat from the water. The function of a cooling tower is to exchange heat between the circulating water from the process cooling device of the industrial system and the air inside the tower. The heat is transferred to the air through both mass transfer and heat transfer, and then dissipated out of the tower using the suction force of the cooling tower. The principle is that the cooling water carrying waste heat is distributed to the nozzles through a water distribution system (tubular or trough type). The nozzles break up the water into small droplets, which are evenly sprinkled on the water-spraying filler, allowing it to fully contact with the air and achieve the purpose of heat exchange.

[0003] Common sprinkler nozzles mainly include reflective and centrifugal types. Among them, centrifugal splashing is an emerging splashing technology. The existing centrifugal cooling tower spray device mainly relies on the cooling water to hit the splash wheel blades to throw the cooling water out for spray cooling.

[0004] However, the current sprinkler has a poor spreading effect when the water pressure is low, the splashing radius is small, the water droplets are unevenly dispersed, and blind spots are prone to watering, which in turn affects the cooling efficiency and cooling effect of the cooling tower. Utility Model Content

[0005] The main purpose of the utility model is to provide a cooling tower spray head and a spray device, which are intended to expand the spray radius of the spray head and improve the cooling efficiency and cooling effect of the cooling tower.

[0006] To achieve the above-mentioned purpose, the cooling tower spray head proposed by the present invention comprises:

[0007] The nozzle comprises a main body and an adjustment ring, wherein a water spray cavity is formed inside the main body, and a water inlet and a water outlet communicating with the water spray cavity are respectively provided at the upper and lower ends of the main body; the adjustment ring is sleeved on the main body, and an annular chute is provided on the outer peripheral wall of the adjustment ring along the circumference of the adjustment ring, and a guide platform is provided in the chute along the circumference of the adjustment ring, and the top wall structure of the guide platform is arranged in a wavy shape;

[0008] The splash wheel comprises a wheel body, a connecting ring, a first connecting arm and an adjusting arm, the wheel body being arranged below the water outlet and being rotatable along its own axis relative to the nozzle, the connecting ring surrounding the outer side of the adjusting ring, the connecting ring being connected to the wheel body via the first connecting arm, one end of the adjusting arm being connected to the inner peripheral wall of the connecting ring, the other end of the adjusting arm extending into the slide groove and abutting against the top wall of the guide platform, so that the wheel body can be movably suspended in an up and down direction below the main body when rotating; and

[0009] A guide plate is provided on a side of the wheel body close to the nozzle.

[0010] In one embodiment, the cooling tower spray head further comprises a bracket, the bracket comprising a mounting ring, a second connecting arm, and a mounting seat, the mounting ring being sleeved on the main body, the mounting seat being located on a side of the wheel body facing away from the nozzle, the mounting ring and the mounting seat being connected via the second connecting arm;

[0011] The adjustment ring is located between the mounting ring and the mounting seat;

[0012] The wheel body and the guide plate are coaxially arranged on the mounting seat. The wheel body can rotate along its own axis relative to the mounting seat. The guide plate is fixedly connected to the mounting seat.

[0013] In one embodiment, the mounting seat includes a seat body and a mounting shaft, the seat body is connected to the second connecting arm, the mounting shaft is provided on a side of the seat body close to the nozzle, and a mounting groove is provided at the top end of the mounting shaft;

[0014] A first mounting sleeve is formed on a side of the wheel body close to the base body, and the first mounting sleeve is rotatably sleeved on the outer side of the mounting shaft through a bearing, and a mounting hole communicating with the first mounting sleeve is formed on a side of the wheel body away from the base body;

[0015] A fixed shaft is formed on one side of the guide plate close to the seat body, and the fixed shaft passes through the mounting hole to be fixedly inserted into the mounting groove.

[0016] In one embodiment, the cooling tower spray head further includes a spare splatter disc, and a second mounting sleeve is formed on a side of the spare splatter disc close to the base body, and the second mounting sleeve is sleeved on the outer side of the mounting shaft.

[0017] In one embodiment, the mounting shaft is provided with a snap-fit ​​groove;

[0018] A clamping protrusion is provided on the inner side of the second mounting sleeve, and the clamping protrusion is inserted into the clamping groove; and / or

[0019] The spare scattering disc is a grid structure.

[0020] In one embodiment, the fixed shaft is a stainless steel rod.

[0021] In one embodiment, the main body includes a detachably connected connecting tube body and an adjusting tube body, the outer side of the connecting tube body is provided with a connecting thread for threaded connection with a pipeline, the water inlet is provided at one end of the connecting tube body away from the adjusting tube body, the adjusting tube body is coaxially arranged with the connecting tube body, and the water outlet is provided at one end of the adjusting tube body away from the connecting tube body; the adjusting ring is sleeved on the outer side of the adjusting tube body.

[0022] In one embodiment, the cross-sectional area of ​​the regulating tube body is gradually reduced from top to bottom.

[0023] In one embodiment, a peak-shaped protrusion and a guide rib provided on the protrusion are formed on a side of the guide plate close to the main body, and the guide rib is arranged in a spiral divergent form from the middle to the edge.

[0024] The utility model also provides a spray device, comprising the cooling tower spray head mentioned above.

[0025] The technical solution of the present invention is to arrange the splash wheel on the adjustment ring of the inlet nozzle through relative rotation of the adjustment arm. After the cooling water enters from the water inlet, it directly impacts the guide plate, and then spreads from the middle of the guide plate to the surrounding areas and impacts the splash wheel, thereby generating centrifugal force to make the water rise and splash outward, and the water droplets perform parabolic free fall motion in the air, so the spraying radius is large. In addition, by arranging a wavy guide platform on the slide groove of the adjustment ring, the splash wheel can simultaneously move up and down in the height direction when rotating, so that the head of the cooling water can change periodically, the reflection range and the spraying range of the cooling water can be periodically expanded and reduced, the cooling water can fully contact the filler surface and the air, and form a uniform thin film on the filler surface, so that the water-gas heat exchange is more sufficient, effectively improving the water distribution condition in the tower, and thus improving the cooling efficiency and cooling effect of the cooling tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1This is a structural diagram of an embodiment of a cooling tower spray head provided by the utility model;

[0028] Figure 2 A schematic structural diagram of an embodiment of a bracket provided by the present invention;

[0029] Figure 3 A schematic structural diagram of an embodiment of a splash wheel provided by the present utility model;

[0030] Figure 4 A structural schematic diagram of another embodiment of the splash wheel provided by the utility model;

[0031] Figure 5 This is a structural schematic diagram of an embodiment of a guide plate provided by the utility model;

[0032] Figure 6 This is a structural schematic diagram of an embodiment of a spare splatter disc provided by the utility model.

[0033] Description of Figure Numbers:

[0034] 100. Cooling tower spray head; 1. Nozzle; 11. Main body; 111. Connecting pipe body; 112. Adjusting pipe body; 12. Adjusting ring; 121. Slide groove; 122. Guide platform; 2. Splashing wheel; 21. Wheel body; 211. First mounting sleeve; 212. Mounting hole; 22. Connecting ring; 23. First connecting arm; 24. Adjusting arm; 3. Guide plate; 31. Fixed shaft; 4. Bracket; 41. Mounting ring; 42. Second connecting arm; 43. Mounting seat; 431. Seat body; 432. Mounting shaft; 433. Mounting groove; 434. Snap-in groove; 5. Spare splashing plate; 51. Second mounting sleeve; 52. Snap-in protrusion.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The utility model provides a cooling tower spray head 100.

[0040] See also Figures 1 to 6 In one embodiment of the present invention, the cooling tower spray head 100 includes a nozzle 1, a splash wheel 2 and a guide plate 3. The nozzle 1 includes a main body 11 and an adjusting ring 12. A water spray cavity is formed inside the main body 11. The upper and lower ends of the main body 11 are respectively provided with a water inlet and a water outlet connected to the water spray cavity; the adjusting ring 12 is sleeved on the main body 11, and an annular slide groove 121 is provided on the outer peripheral wall of the adjusting ring 12 along the circumference of the adjusting ring 12. A guide platform 122 is provided in the slide groove 121 along the circumference of the adjusting ring 12. The top wall structure of the guide platform 122 is arranged in a wavy shape. The splash wheel 2 includes a wheel The wheel body 21, the connecting ring 22, the first connecting arm 23 and the adjusting arm 24 are provided below the water outlet and can rotate along its own axis relative to the nozzle 1. The connecting ring 22 surrounds the outside of the adjusting ring 12. The connecting ring 22 and the wheel body 21 are connected through the first connecting arm 23. One end of the adjusting arm 24 is connected to the inner circumferential wall of the connecting ring 22, and the other end of the adjusting arm 24 extends into the slide groove 121 and abuts against the top wall of the guide platform 122, so that the wheel body 21 can be suspended below the main body 11 in the up and down directions when rotating. The guide plate 3 is provided on the side of the wheel body 21 close to the nozzle 1.

[0041] The technical solution of the present invention is to arrange the splash wheel 2 on the adjustment ring 12 of the nozzle inlet 1 through relative rotation of the adjustment arm 24. After the cooling water enters from the water inlet, it directly impacts the guide plate 3, and then spreads to the surrounding areas from the middle of the guide plate 3 and impacts the splash wheel, thereby generating centrifugal force to make the water rise and splash outward, and the water droplets perform parabolic free fall in the air, so the spraying radius is large. In addition, by providing a wavy guide platform 122 on the slide groove 121 of the adjustment ring 12, the splash wheel 2 can simultaneously move up and down in the height direction when rotating, so that the head of the cooling water can change periodically, the reflection range and the spraying range of the cooling water can be periodically expanded and reduced, the cooling water can fully contact the filler surface and the air, and form a uniform thin film on the filler surface, so that the water-gas heat exchange is more sufficient, effectively improving the water distribution condition in the tower, and thus improving the cooling efficiency and cooling effect of the cooling tower.

[0042] It can be understood that a conventional splash wheel 2 is provided with a plurality of water-dividing blades arranged at intervals along the axial direction of the wheel body 21 on the edge of the wheel body 21, and the water-dividing blades are arranged to be inclined relative to the radial direction of the wheel body 21 so that the cooling water diverted from the guide plate 3 can impact the water-dividing blades, thereby causing the splash wheel 2 to rotate, thereby generating centrifugal force, subdividing the cooling water and throwing it away, wherein the height of each water-dividing blade can be the same or different.

[0043] See also Figure 2 In order to improve the stability and reliability of the cooling tower spray head 100, in one embodiment of the present application, the cooling tower spray head 100 further includes a bracket 4, which includes a mounting ring 41, a second connecting arm 42 and a mounting seat 43. The mounting ring 41 is sleeved on the main body 11, and the mounting seat 43 is located on the side of the wheel body 21 away from the nozzle 1. The mounting ring 41 and the mounting seat 43 are connected by the second connecting arm 42; the adjusting ring 12 is located between the mounting ring 41 and the mounting seat 43; the wheel body 21 and the guide plate 3 are coaxially arranged on the mounting seat 43, and the wheel body 21 can rotate along its own axis relative to the mounting seat 43, and the guide plate 3 is fixedly connected to the mounting seat 43. The arrangement of the bracket 4 enables the splash wheel 2 and the guide plate 3 to be stably mounted on the mounting base 43, and the bracket 4 is mounted on the nozzle 1 through the connecting ring 22. When the bracket 4 needs to be frequently replaced or maintained, the bracket 4 is fixed to the nozzle 1 through the connecting ring 22. This not only simplifies the operating steps, but also ensures a firm connection between the bracket 4 and the nozzle 1, avoiding the risk of accidental loosening or falling off. The convenience and reliability of this design help to improve the usability of the product, allowing users to operate and maintain it more conveniently, thereby improving the performance and reliability of the equipment. It should be noted that in order to facilitate the up and down movement and rotation of the splash wheel 2, the splash wheel 2 and the mounting base 43 must not only be connected in a rotating manner but also in a sliding manner. The structure will be described in detail below.

[0044] To facilitate the installation of the wheel body 21 and the guide plate 3, in one embodiment of the present application, the mounting seat 43 includes a seat body 431 and a mounting shaft 432. The seat body 431 is connected to the second connecting arm 42. The mounting shaft 432 is arranged on the side of the seat body 431 close to the nozzle 1, and a mounting groove 433 is provided on the top of the mounting shaft 432; a first mounting shaft sleeve 211 is formed on the side of the wheel body 21 close to the seat body 431, and the first mounting shaft sleeve 211 is rotatably sleeved on the outer side of the mounting shaft 432 through a bearing. It should be noted that the bearing here only serves to facilitate the rotation and up and down movement of the wheel body 21, rather than limiting the wheel body 21 on the mounting shaft 432. Therefore, the inner diameter of the bearing can be slightly larger than the mounting shaft 432, so that During the rotation of the splash wheel 2, it can move up and down under the action of the guide platform 122 and the adjustment arm 24; in addition, a mounting hole 212 connected to the first mounting sleeve 211 is provided on the side of the wheel body 21 away from the seat body 431; a fixed shaft 31 is formed on the side of the guide plate 3 close to the seat body 431, and the fixed shaft 31 passes through the mounting hole 212 to be fixedly inserted into the mounting groove 433. The fixed shaft 31 and the guide plate 3 are connected as one body, and the end of the fixed shaft 31 is interference fit with the mounting groove 433. When the cooling tower spray head 100 is in operation, the fixed shaft 31 does not rotate. This design can effectively maintain the stability and positioning accuracy of the guide plate 3, while ensuring that the connection between the fixed shaft 31 and the guide plate 3 is firm and reliable.

[0045] See also Figure 6 In one embodiment of the present application, the cooling tower spray head 100 further includes a backup splatter plate 5. A second mounting sleeve 51 is formed on a side of the backup splatter plate 5 near the base 431. The second mounting sleeve 51 is sleeved on the outside of the mounting shaft 432. By providing the backup splatter plate 5 below the splatter wheel 2, the cooling water can be dispersed by the backup splatter plate 5 in the event of damage to the splatter wheel 2. This provides a double guarantee and avoids the possibility of spraying failure due to damage to the splatter wheel 2.

[0046] See also Figures 3 to 5 To facilitate the positioning and fixing of the spare splatter tray 5 and the mounting base 43, in one embodiment of the present application, the mounting shaft 432 is provided with a snap-fitting groove 434; the inner side of the second mounting sleeve 51 is provided with a snap-fitting protrusion 52, which is inserted into the snap-fitting groove 434; in another embodiment of the present application, the spare splatter tray 5 has a mesh structure. The mesh structure not only disperses the cooling water, but also allows some of the cooling water to fall through the mesh holes, thereby increasing the spray area directly below the bracket 4 and improving the cooling effect. Of course, the above two embodiments can also be used in combination.

[0047] Since the fixed shaft 31 needs to be used in a humid and high-temperature environment for a long time, it is easily damaged. Once damaged, the guide plate 3 cannot play the role of guiding air, which greatly affects the cooling effect. Therefore, in one embodiment of the present application, the fixed shaft 31 is a stainless steel rod. The fixed shaft 31 made of stainless steel has good corrosion resistance and strength, which helps to ensure the stability and durability of the fixed shaft 31.

[0048] Generally, the diameter of the water outlet cannot be adjusted, so the flow rate and water pressure of the cooling water are generally fixed. In one embodiment of the present application, the main body 11 includes a detachably connected connecting pipe body 111 and an adjusting pipe body 112. The outer side of the connecting pipe body 111 is provided with a connecting thread for screwing with a pipe. The end of the connecting pipe body 111 away from the adjusting pipe body 112 is provided with a water inlet. The adjusting pipe body 112 is coaxially arranged with the connecting pipe body 111, and the end of the adjusting pipe body 112 away from the connecting pipe body 111 is provided with a water outlet. The adjusting ring 12 is sleeved on the outer side of the adjusting pipe body 112. By adjusting the diameter of the water outlet through the adjusting pipe body 112, the water flow rate and water pressure can be affected, thereby controlling the water flow rate and flow rate. A larger diameter water outlet generally results in a greater water flow rate, while a smaller diameter water outlet limits the water flow rate. Adjusting pipe bodies 112 of different diameters can be used according to specific needs to meet different water needs or environmental conditions. The adjusting tube body 112 and the connecting tube body 111 can be connected by providing an internal thread and an external thread.

[0049] In one embodiment of the present application, the cross-sectional area of ​​the regulating tube 112 is configured to gradually decrease from top to bottom. As the cross-sectional area of ​​the regulating tube 112 gradually decreases, the flow rate increases. Due to the increased flow rate, the pressure loss at the same flow rate decreases, thereby increasing the impact force of the cooling water from the water outlet onto the guide plate 3. The water flow is more powerful when hitting the guide plate 3, thereby promoting a more dispersed water flow and avoiding uneven cooling or insufficient local cooling caused by excessive water concentration.

[0050] In one embodiment of the present application, a peak-shaped protrusion and guide ribs are formed on the side of the guide plate 3 near the main body 11. The guide ribs are arranged in a spiral pattern from the center to the edge. The peak-shaped protrusion ensures that the cooling water can be diffused around the guide plate 3, providing more driving force for the splash wheel 2, thereby ensuring uniform water distribution. The guide ribs also guide the cooling water and improve the watering effect.

[0051] The present invention also proposes a spray device, which includes a cooling tower spray head 100. The specific structure of the cooling tower spray head 100 refers to the above embodiment. Since the present spray device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0052] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling tower spray head, characterized in that: include: The nozzle comprises a main body and an adjustment ring, wherein a water spray cavity is formed inside the main body, and a water inlet and a water outlet communicating with the water spray cavity are respectively provided at the upper and lower ends of the main body; the adjustment ring is sleeved on the main body, and an annular chute is provided on the outer peripheral wall of the adjustment ring along the circumference of the adjustment ring, and a guide platform is provided in the chute along the circumference of the adjustment ring, and the top wall structure of the guide platform is arranged in a wavy shape; The splash wheel comprises a wheel body, a connecting ring, a first connecting arm and an adjusting arm, the wheel body being arranged below the water outlet and being rotatable along its own axis relative to the nozzle, the connecting ring surrounding the outer side of the adjusting ring, the connecting ring being connected to the wheel body via the first connecting arm, one end of the adjusting arm being connected to the inner peripheral wall of the connecting ring, the other end of the adjusting arm extending into the slide groove and abutting against the top wall of the guide platform, so that the wheel body can be movably suspended below the main body in an up and down direction when rotating; as well as A guide plate is provided on a side of the wheel body close to the nozzle.

2. The cooling tower spray head according to claim 1, wherein: The cooling tower spray head further includes a bracket, the bracket including a mounting ring, a second connecting arm and a mounting seat, the mounting ring is sleeved on the main body, the mounting seat is located on a side of the wheel body away from the nozzle, and the mounting ring and the mounting seat are connected by the second connecting arm; The adjustment ring is located between the mounting ring and the mounting seat; The wheel body and the guide plate are coaxially arranged on the mounting seat. The wheel body can rotate along its own axis relative to the mounting seat. The guide plate is fixedly connected to the mounting seat.

3. The cooling tower spray head according to claim 2, characterized in that: The mounting seat includes a seat body and a mounting shaft, the seat body is connected to the second connecting arm, the mounting shaft is arranged on a side of the seat body close to the nozzle, and a mounting groove is formed at the top end of the mounting shaft; A first mounting sleeve is formed on a side of the wheel body close to the base body, and the first mounting sleeve is rotatably sleeved on the outer side of the mounting shaft through a bearing, and a mounting hole communicating with the first mounting sleeve is formed on a side of the wheel body away from the base body; A fixed shaft is formed on one side of the guide plate close to the seat body, and the fixed shaft passes through the mounting hole to be fixedly inserted into the mounting groove.

4. The cooling tower spray head according to claim 3, characterized in that: The cooling tower spray head further comprises a spare splash plate, a second mounting sleeve is formed on a side of the spare splash plate close to the base body, and the second mounting sleeve is sleeved on the outer side of the mounting shaft.

5. The cooling tower spray head according to claim 4, characterized in that: The mounting shaft is provided with a clamping groove; the inner side of the second mounting sleeve is provided with a clamping protrusion, and the clamping protrusion is inserted into the clamping groove; and / or The spare scattering disc is a grid structure.

6. The cooling tower spray head according to claim 3, characterized in that: The fixed shaft is a stainless steel rod.

7. The cooling tower spray head according to claim 1, wherein: The main body includes a detachably connected connecting tube body and an adjusting tube body, the outer side of the connecting tube body is provided with a connecting thread for being screwed to a pipeline, the end of the connecting tube body away from the adjusting tube body is provided with the water inlet, the adjusting tube body is coaxially arranged with the connecting tube body, and the end of the adjusting tube body away from the connecting tube body is provided with the water outlet; the adjusting ring is sleeved on the outer side of the adjusting tube body.

8. The cooling tower spray head according to claim 7, wherein: The cross-sectional area of ​​the regulating tube body is gradually reduced from top to bottom.

9. The cooling tower spray head according to claim 1, wherein: A mountain-shaped protrusion and a guide rib are formed on the protrusion on one side of the guide plate close to the main body. The guide rib is arranged in a spiral divergent form from the middle to the edge.

10. A spraying device, characterized in that: The cooling tower spray head comprises the cooling tower spray head according to any one of claims 1 to 9.

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