Uniform spraying distribution device for water cooling tower of power plant

Abstract

The invention discloses a power plant water cooling tower spraying uniform distribution device which comprises a water cooling tower, a water supply mechanism and a driving mechanism, a vertical pipe penetrates through and rotates in the center of the top of the water cooling tower, the bottom end of the vertical pipe is communicated with a transverse pipe, the two ends of the transverse pipe are communicated with the same annular pipe, the bottom of the annular pipe is communicated with a spraying pipe, and a first spraying head is installed on the inner side of the spraying pipe; a distribution box is arranged in the water cooling tower, second nozzles are mounted at the bottom of the distribution box, the water supply mechanism is used for providing hot water for the spraying pipe and the distribution box, and the driving mechanism is used for driving the annular pipe to rotate and the distribution box to reciprocate up and down. According to the water cooling tower, two different spraying modes are matched, so that water distribution can be improved, the water can cover the whole water cooling tower more uniformly, the phenomenon of local overheating or drying is avoided, water flow stagnation can be reduced, and the risk of scaling and corrosion is reduced; and hot water sprayed in two spraying modes can be uniformly distributed all the time, so that all the hot water can be in full contact with air, and the evaporative cooling effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, and in particular to a spray uniform distribution device for a cooling tower in a power plant. Background Art

[0002] Cooling towers are structures used to cool water. They are commonly found in power plants, chemical plants, cement plants, and other factories that need to control water temperature. The height is determined based on the heat exchange rate. It is a structure that saves water and recycles water. The working principle of cooling towers: The wind blowing in and the water sprinkled from above form convection to remove the heat source. Part of the water evaporates in the convection, taking away the corresponding latent heat of evaporation, thereby reducing the temperature of the water.

[0003] The cooling tower needs to spray hot water downward from the top of the cooling tower, but the existing power plant cooling tower cannot spray hot water evenly into the cooling tower, which will cause the water in some areas to fail to fully contact the air, thereby reducing the evaporative cooling effect and causing the cooling water temperature to be too high. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a spray uniform distribution device for a cooling tower of a power plant.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A spray uniform distribution device for a cooling tower of a power plant, comprising: a cooling tower, a vertical pipe vertically penetrating and rotatably connected at the center of the top of the cooling tower, a horizontal pipe horizontally connected at the bottom of the vertical pipe, a ring pipe at both ends of the horizontal pipe, a spray pipe vertically connected at the bottom of the ring pipe, a first spray head installed inside the spray pipe, a distribution box horizontally arranged inside the cooling tower, a second spray head installed at the bottom of the distribution box;

[0007] A water supply mechanism, the water supply mechanism is used to provide hot water to the sprinkler pipe and the distribution box;

[0008] The driving mechanism is used to drive the annular tube to rotate and the distribution box to move up and down reciprocatingly.

[0009] As a further technical solution of the present invention, the spray pipe, the first nozzle and the second nozzle are each provided in plurality, the plurality of the spray pipes are evenly distributed along the circumference at the bottom of the annular pipe, the plurality of the first nozzles are evenly distributed vertically on the inner side of the spray pipe, and the plurality of the second nozzles are evenly distributed in an array at the bottom of the distribution box.

[0010] As a further technical solution of the present invention, the water supply mechanism includes a water pump, the top of the cooling tower is welded to the L-shaped support plate, the water pump is fixedly installed on the bottom of the L-shaped support plate, the water inlet of the water pump is connected to a water suction pipe, the water outlet of the water pump is connected to a water outlet pipe, the bottom end of the water outlet pipe is connected to the top of the vertical pipe and is rotatably connected, the side of the water outlet pipe is connected to a connecting pipe, the other end of the connecting pipe extends into one side of the cooling tower and is fixedly connected to the cooling tower, the other end of the connecting pipe is connected to a hose, and the other end of the hose is connected to the distribution box.

[0011] Start the water pump to draw hot water through the suction pipe, pass it into the vertical pipe through the outlet pipe, and then pass it into the horizontal pipe and the ring pipe in turn, evenly distributed to multiple spray pipes, and finally sprayed evenly into the cooling tower by multiple first nozzles on the multiple spray pipes; the hot water in the vertical pipe will also pass into the connecting pipe, the hose and the distribution box in turn, evenly distributed to multiple second nozzles, and evenly sprayed into the cooling tower by the second nozzles; using two different spraying methods in combination can improve the distribution of water, make it cover the entire cooling tower more evenly, avoid local overheating or drying; and help reduce water stagnation, thereby reducing the risk of scaling and corrosion.

[0012] As a further technical solution of the present invention, the driving mechanism includes a rotating motor, which is horizontally fixedly installed on the top of the cooling tower, and a driving bevel gear is fixedly installed on the output end of the rotating motor. A driven bevel gear is welded to the outer periphery of the vertical pipe, and the driving bevel gear and the driven bevel gear are meshed. A connecting rod is welded to the middle vertical axis at the bottom of the horizontal pipe, and a large disc is welded to the bottom of the connecting rod. A circular groove is opened at the bottom of the large disc, and a small disc is welded at the center of the circular groove. A plurality of inner convex teeth are welded to part of the inner wall of the circular groove, and a plurality of outer convex teeth are welded to part of the outer periphery of the small disc. The circular groove is provided with a small gear, and the small gear is meshed with the plurality of inner convex teeth and the plurality of outer convex teeth in turn. A screw rod is vertically welded to the center of the small gear, and the screw rod passes through the distribution box and is connected to the distribution box by threads.

[0013] During the spraying process, the rotating motor is started to drive the active bevel gear to rotate, the active bevel gear drives the vertical pipe to rotate through the driven bevel gear, the vertical pipe drives the annular pipe to revolve through the horizontal pipe, thereby driving the spray pipe at the bottom of the annular pipe to revolve, so that the water sprayed by the multiple first nozzles is more evenly distributed; and the horizontal pipe drives the connecting rod to rotate, the connecting rod drives the large disc to rotate, the large disc drives the small disc to rotate together, the multiple inner convex teeth on the inner wall of the circular groove first mesh with the pinion gear to drive the pinion gear to rotate forward, the pinion gear drives the lead screw to rotate forward, and then drives the distribution box to move downward, when the multiple inner convex teeth and the pinion gear are fully engaged, the multiple outer convex teeth on the outer periphery of the small disc mesh with the pinion gear again to drive the pinion gear to rotate in the opposite direction, the pinion gear drives the lead screw to rotate in the opposite direction, and then drives the distribution box to move upward, the large disc and the small disc keep rotating, and the distribution box keeps moving up and down, so that the water sprayed by the multiple second nozzles is more evenly distributed, thereby ensuring that the hot water sprayed by the two spraying methods is always evenly distributed, so that all hot water can fully contact the air, and the evaporative cooling effect is improved.

[0014] As a further technical solution of the present invention, a support plate is horizontally welded on the inner wall of one side of the cooling tower, the bottom end of the screw rod is rotatably connected to the top of the support plate, a limit rod is vertically welded to the top of the support plate, and the limit rod passes through the distribution box and is slidably connected to the distribution box.

[0015] The beneficial effects of the present invention are as follows: by utilizing two different spraying methods in combination, the distribution of water can be improved so that it covers the entire cooling tower more evenly, local overheating or drying can be avoided, and it helps to reduce water flow stagnation, thereby reducing the risk of scaling and corrosion; it can ensure that the hot water sprayed by the two spraying methods always remains evenly distributed, so that all hot water can fully contact the air, thereby improving the evaporative cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a spray uniform distribution device for a cooling tower in a power plant proposed by the present invention;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a spray uniform distribution device for a power plant cooling tower proposed by the present invention;

[0018] Figure 3 A schematic diagram of the upward structure of a spray uniform distribution device for a power plant cooling tower proposed by the present invention Figure 1 ;

[0019] Figure 4 A schematic diagram of the upward structure of a spray uniform distribution device for a power plant cooling tower proposed by the present invention Figure 2 ;

[0020] Figure 5 This is a partial top view structural schematic diagram of a power plant cooling tower spray uniform distribution device proposed by the present invention.

[0021] In the figure: 1. L-shaped support plate; 2. water pump; 3. connecting pipe; 4. water outlet pipe; 5. driving bevel gear; 6. rotating motor; 7. cooling tower; 8. driven bevel gear; 9. vertical pipe; 10. annular pipe; 11. first nozzle; 12. spray pipe; 13. large disc; 14. distribution box; 15. screw rod; 16. limit rod; 17. support plate; 18. second nozzle; 19. hose; 20. outer convex teeth; 21. small gear; 22. circular groove; 23. small disc; 24. inner convex teeth; 25. horizontal pipe; 26. connecting rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Please refer to the attached Figure 1 -Attached Figure 5 A power plant cooling tower spray uniform distribution device comprises: a cooling tower 7, a vertical pipe 9 is vertically penetrated and rotatably connected at the center of the top of the cooling tower 7, a horizontal pipe 25 is horizontally connected to the bottom of the vertical pipe 9, and the two ends of the horizontal pipe 25 are connected to the same annular pipe 10, a spray pipe 12 is vertically connected to the bottom of the annular pipe 10, a first spray head 11 is installed inside the spray pipe 12, a distribution box 14 is horizontally arranged inside the cooling tower 7, and a second spray head 18 is installed at the bottom of the distribution box 14;

[0024] A water supply mechanism, which is used to provide hot water to the spray pipe 12 and the distribution box 14;

[0025] The driving mechanism is used to drive the annular tube 10 to rotate and the distribution box 14 to move up and down.

[0026] Please refer to the attached Figure 1-5 In a preferred embodiment, the spray pipe 12, the first nozzle 11 and the second nozzle 18 are each provided in plurality, the plurality of spray pipes 12 are evenly distributed along the circumference at the bottom of the annular tube 10, the plurality of first nozzles 11 are evenly distributed vertically on the inner side of the spray pipe 12, and the plurality of second nozzles 18 are evenly distributed in an array at the bottom of the distribution box 14.

[0027] Please refer to the attached Figure 1-5 In a preferred embodiment, the water supply mechanism includes a water pump 2, the top of the cooling tower 7 is welded to the L-shaped support plate 1, the water pump 2 is fixedly installed at the bottom of the L-shaped support plate 1, and the water inlet of the water pump 2 is connected to a pumping pipe.

[0028] The L-shaped support plate 1 supports the water pump 2, and the other end of the water pumping pipe is connected to the hot water.

[0029] Please refer to the attached Figure 1-5In a preferred embodiment, the water outlet of the water pump 2 is connected to a water outlet pipe 4, the bottom end of the water outlet pipe 4 is connected and rotatably connected to the top end of the vertical pipe 9, and the side of the water outlet pipe 4 is connected to a connecting pipe 3.

[0030] Please refer to the attached Figure 1-5 In a preferred embodiment, the other end of the connecting pipe 3 extends into one side of the cooling tower 7 and is fixedly connected to the cooling tower 7. The other end of the connecting pipe 3 is connected to a hose 19, and the other end of the hose 19 is connected to the distribution box 14.

[0031] Please refer to the attached Figure 1-5 In a preferred embodiment, the driving mechanism includes a rotating motor 6, which is horizontally fixedly installed on the top of the cooling tower 7. A driving bevel gear 5 is fixedly installed on the output end of the rotating motor 6. A driven bevel gear 8 is welded on the outer periphery of the vertical pipe 9, and the driving bevel gear 5 and the driven bevel gear 8 are meshed.

[0032] Please refer to the attached Figure 1-5 In a preferred embodiment, a connecting rod 26 is welded to the middle vertical axis of the bottom of the cross tube 25, a large disc 13 is welded to the bottom of the connecting rod 26, a circular groove 22 is opened at the bottom of the large disc 13, and a small disc 23 is welded at the center of the circular groove 22.

[0033] Please refer to the attached Figure 1-5 In a preferred embodiment, a portion of the inner wall of the circular groove 22 is welded with a plurality of inner convex teeth 24 , a portion of the outer circumference of the small disc 23 is welded with a plurality of outer convex teeth 20 , and the circular groove 22 is provided with a small gear 21 .

[0034] Please refer to the attached Figure 1-5 In a preferred embodiment, the pinion 21 meshes with a plurality of inner convex teeth 24 and a plurality of outer convex teeth 20 in sequence, and a screw rod 15 is vertically welded at the center of the pinion 21. The screw rod 15 passes through the distribution box 14 and is connected to the distribution box 14 by threads.

[0035] Please refer to the attached Figure 1-5 In a preferred embodiment, a support plate 17 is horizontally welded to the inner wall of one side of the cooling tower 7, the bottom end of the screw rod 15 is rotatably connected to the top of the support plate 17, and a limit rod 16 is vertically welded to the top of the support plate 17. The limit rod 16 passes through the distribution box 14 and is slidably connected to the distribution box 14.

[0036] The support plate 17 supports the screw rod 15 and the limiting rod 16 , and the limiting rod 16 limits the movement of the distribution box 14 so that it can only move up and down and cannot rotate with the screw rod 15 .

[0037] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: the water pump 2 is started to use the water extraction pipe to extract hot water, which is passed into the vertical pipe 9 through the water outlet pipe 4, and then passed into the horizontal pipe 25 and the annular pipe 10 in turn, and evenly distributed to multiple spray pipes 12, and finally sprayed uniformly to the inside of the cooling tower 7 by the multiple first nozzles 11 on the multiple spray pipes 12; the hot water in the vertical pipe 9 is also passed into the connecting pipe 3, the hose 19 and the distribution box 14 in turn, and evenly distributed to the multiple second nozzles 18, and then sprayed uniformly to the inside of the cooling tower 7 by the second nozzles 18; the two different spraying methods are used in combination to improve the distribution of water, so that it can cover the entire cooling tower 7 more evenly, avoiding local overheating or drying; and it helps to reduce water stagnation, thereby reducing the risk of scaling and corrosion;

[0038] During the spraying process, the rotating motor 6 is started to drive the active bevel gear 5 to rotate, the active bevel gear 5 drives the vertical pipe 9 to rotate through the driven bevel gear 8, the vertical pipe 9 drives the annular pipe 10 to revolve through the horizontal pipe 25, thereby driving the spray pipe 12 at the bottom of the annular pipe 10 to revolve, so that the water sprayed by the multiple first nozzles 11 is more evenly distributed; and the horizontal pipe 25 drives the connecting rod 26 to rotate, the connecting rod 26 drives the large disc 13 to rotate, the large disc 13 drives the small disc 23 to rotate together, the multiple inner convex teeth 24 on the inner wall of the circular groove 22 first mesh with the small gear 21 to drive the small gear 21 to rotate forward, and the small gear 21 drives the screw rod 15 to rotate forward. The large disc 13 and the small disc 23 rotate in the opposite direction, which drives the distribution box 14 to move upward. The large disc 13 and the small disc 23 rotate continuously, and the distribution box 14 moves up and down repeatedly, so that the water sprayed by the multiple second nozzles 18 is more evenly distributed, thereby ensuring that the hot water sprayed by the two spraying methods is always evenly distributed, so that all the hot water can fully contact the air, thereby improving the evaporative cooling effect.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray uniform distribution device for cooling towers in power plants, characterized in that: include: A cooling tower (7), wherein a vertical pipe (9) is vertically penetrated through the center of the top of the cooling tower (7) and is rotatably connected, the bottom of the vertical pipe (9) is horizontally connected to a horizontal pipe (25), both ends of the horizontal pipe (25) are connected to the same annular pipe (10), the bottom of the annular pipe (10) is vertically connected to a spray pipe (12), the inner side of the spray pipe (12) is equipped with a first spray head (11), a distribution box (14) is horizontally arranged inside the cooling tower (7), and a second spray head (18) is installed at the bottom of the distribution box (14); A water supply mechanism, the water supply mechanism is used to provide hot water to the spray pipe (12) and the distribution box (14); A driving mechanism is provided, wherein the driving mechanism is used to drive the annular tube (10) to rotate and the distribution box (14) to move up and down reciprocatingly.

2. A spray uniform distribution device for cooling towers in power plants according to claim 1, characterized in that: The spray pipe (12), the first spray head (11) and the second spray head (18) are each provided in plurality, the plurality of the spray pipes (12) being evenly distributed along the circumference at the bottom of the annular pipe (10), the plurality of the first spray heads (11) being evenly distributed vertically on the inner side of the spray pipe (12), and the plurality of the second spray heads (18) being evenly distributed in an array at the bottom of the distribution box (14).

3. The spray uniform distribution device for cooling tower of power plant according to claim 1, characterized in that: The water supply mechanism comprises a water pump (2); the top of the cooling tower (7) is welded to the L-shaped support plate (1); the water pump (2) is fixedly installed on the bottom of the L-shaped support plate (1); and the water inlet of the water pump (2) is connected to a water pumping pipe.

4. A spray uniform distribution device for cooling towers in power plants according to claim 3, characterized in that: The water outlet of the water pump (2) is connected to a water outlet pipe (4), the bottom end of the water outlet pipe (4) is connected to the top end of the vertical pipe (9) and is rotatably connected, and the side of the water outlet pipe (4) is connected to a connecting pipe (3).

5. A spray uniform distribution device for cooling towers in power plants according to claim 4, characterized in that: The other end of the connecting pipe (3) extends into one side of the cooling tower (7) and is fixedly connected to the cooling tower (7). The other end of the connecting pipe (3) is connected to a hose (19), and the other end of the hose (19) is connected to a distribution box (14).

6. The spray uniform distribution device for cooling tower of power plant according to claim 1, characterized in that: The driving mechanism comprises a rotating motor (6), the rotating motor (6) being fixedly mounted horizontally on the top of a cooling tower (7), a driving bevel gear (5) being fixedly mounted on the output end of the rotating motor (6), a driven bevel gear (8) being welded on the outer periphery of the vertical pipe (9), and the driving bevel gear (5) and the driven bevel gear (8) being meshed.

7. A spray uniform distribution device for cooling towers in power plants according to claim 6, characterized in that: A connecting rod (26) is welded to the middle vertical axis of the bottom of the transverse tube (25), a large disc (13) is welded to the bottom of the connecting rod (26), a circular groove (22) is formed at the bottom of the large disc (13), and a small disc (23) is welded at the center of the circular groove (22).

8. The spray uniform distribution device for cooling tower of power plant according to claim 7, characterized in that: A plurality of inner convex teeth (24) are welded on part of the inner wall of the circular groove (22), a plurality of outer convex teeth (20) are welded on part of the outer periphery of the small disc (23), and a small gear (21) is provided on the circular groove (22).

9. A spray uniform distribution device for cooling towers in power plants according to claim 8, characterized in that: The pinion (21) meshes with a plurality of inner convex teeth (24) and a plurality of outer convex teeth (20) in sequence. A screw rod (15) is vertically welded at the center of the pinion (21). The screw rod (15) passes through the distribution box (14) and is connected to the distribution box (14) by threads.

10. A spray uniform distribution device for cooling towers in power plants according to claim 9, characterized in that: A support plate (17) is horizontally welded to the inner wall of one side of the cooling tower (7); the bottom end of the screw rod (15) is rotatably connected to the top of the support plate (17); a limit rod (16) is vertically welded to the top of the support plate (17); the limit rod (16) passes through the distribution box (14) and is slidably connected to the distribution box (14).

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