Gravity self-balancing smooth water distribution system and cooling tower

Abstract

According to the gravity self-balancing smooth water distribution system and the cooling tower, a pressure relief opening is formed in the top of a first-stage gravity self-balancing water distribution pipeline, and each second-stage gravity self-balancing water distribution pipeline is communicated with the first-stage gravity self-balancing water distribution pipeline; the third-stage gravity self-balancing water distribution pipelines are connected to the corresponding second-stage gravity self-balancing water distribution pipelines respectively, a plurality of water distribution pipes are arranged on the third-stage gravity self-balancing water distribution pipelines, and the water spray nozzles are arranged on any one or more of the second-stage gravity self-balancing water distribution pipelines, the third-stage gravity self-balancing water distribution pipelines and the water distribution pipes. According to the water distribution system, the water spray nozzles are located on the same horizontal plane and can be located at the lowest position of the water distribution system, the water pressure of the water spray nozzles is roughly the same, and the water outlet amount and the spraying area of the water spray nozzles are roughly the same, so that uniform water distribution is achieved, the water distribution system is not affected by the water inlet pressure, and the cooling efficiency of the cooling tower is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers and evaporative condensation water distribution, and in particular to a gravity self-balancing smooth water distribution system and a cooling tower, namely an open and closed cooling tower and an evaporative cooling water distribution system. Background Art

[0002] The water distribution system is an important component of the counter-flow cooling tower, and the effect of its water distribution directly affects the operating efficiency of the cooling tower. In the related art, the water distribution system is composed of a water inlet pipe, a nozzle, a water distribution pipe, an umbrella-shaped disc and a toothed chassis. The water distribution pipe is distributed in the horizontal plane at the top of the filler, the water inlet pipe is directly connected to the water distribution pipe, and the water nozzle is arranged on the water distribution pipe. The water enters the water distribution pipe from the water inlet pipe and is sprayed out by the water nozzle on the water distribution pipe, directly shooting onto the toothed umbrella-shaped chassis, then reflecting onto the toothed disc, and then splashing around and falling onto the filler. This water distribution system has certain requirements for water pressure and water volume. On the extension path along the water distribution pipe, the water pressure changes step by step. Only when the water volume and water pressure are moderate can the designed uniform water distribution effect be achieved. When the flow rate decreases or the water pressure decreases, the water distribution system is prone to uneven water distribution, resulting in a reduction in the water distribution area, and some positions on the filler surface cannot be watered (dry area phenomenon), which reduces the cooling efficiency of the cooling tower.

[0003] Furthermore, in the related art, some water nozzles of the water distribution system have different heights, which results in different water pressures at some of the water nozzles, thus causing different water spray volumes and spray areas of each water nozzle, which easily leads to uneven water distribution. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, the embodiment of the present application provides a gravity self-balancing smooth water distribution system and a cooling tower to solve the problems of uneven water distribution and low cooling efficiency in the cooling tower in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] The first object of the present application is to provide a gravity self-balancing smooth water distribution system, comprising:

[0007] A first-stage gravity self-balancing water distribution pipeline, wherein the first-stage gravity self-balancing water distribution pipeline has a pressure relief port at the top;

[0008] A plurality of second-stage self-balancing gravity water distribution pipes, each of which is located on the periphery of the first-stage self-balancing gravity water distribution pipe, and each of which is connected to the first-stage self-balancing gravity water distribution pipe;

[0009] A plurality of third-level gravity self-balancing water distribution pipes, each of which is connected to a corresponding second-level gravity self-balancing water distribution pipe, and each of which is provided with a plurality of water distribution pipes;

[0010] A plurality of water spray nozzles are provided on any one or more of the second-stage gravity self-balancing water distribution pipeline, the third-stage gravity self-balancing water distribution pipeline and the water distribution pipe, and each of the water spray nozzles is located in the same horizontal plane.

[0011] Optionally, the second-stage gravity self-balancing water distribution pipeline has a bottom wall and a cylindrical wall connected to the bottom wall;

[0012] The lower edge of the water distribution pipe and the bottom wall are located in the same horizontal plane;

[0013] The water spray nozzles are arranged on the bottom wall and the lower edge of the water distribution pipe.

[0014] Optionally, a plurality of the water spray nozzles are arranged on the bottom wall, some of the water spray nozzles are arranged in sequence along the edge of the bottom wall, and some of the water spray nozzles are located in the middle of the bottom wall.

[0015] Optionally, the third-stage gravity self-balancing water distribution pipeline is connected to the cylindrical wall so that the lower edge of the water distribution pipe connected to the third-stage gravity self-balancing water distribution pipeline and the bottom wall are located in the same horizontal plane.

[0016] Optionally, a plurality of notches are provided at the bottom of the third-stage gravity self-balancing water distribution pipeline, and the notches are sequentially spaced along the length direction of the third-stage gravity self-balancing water distribution pipeline;

[0017] Each of the water distribution pipes is embedded in a corresponding notch portion, and each of the water distribution pipes is connected to the third-stage gravity self-balancing water distribution pipeline.

[0018] Optionally, the notch portion extends along the circumference of the third-stage gravity self-balancing water distribution pipeline;

[0019] The water distribution pipe passes through the notch, and the water distribution pipe is perpendicular to the third-level gravity self-balancing water distribution pipeline;

[0020] A weld is formed between the water distribution pipe and the edge of the notch, and the water distribution pipe and the edge of the notch are welded and fixed.

[0021] Optionally, at least part of the third-stage gravity self-balancing water distribution pipeline includes two end pipe sections and a middle pipe section;

[0022] The middle pipe section is located between two adjacent second-stage gravity self-balancing water distribution pipes, and the two ends are respectively connected to the cylindrical walls of the two second-stage gravity self-balancing water distribution pipes;

[0023] The two end pipe sections are respectively connected to the cylindrical walls of two adjacent second-stage gravity self-balancing water distribution pipes;

[0024] Wherein, the end pipe section and the two middle pipe sections are located on the same horizontal line, and water spray nozzles are arranged on the end pipe section and the middle pipe section.

[0025] Optionally, exhaust pipes are provided at both ends of the third-stage gravity self-balancing water distribution pipeline.

[0026] Optionally, the gravity self-balancing smooth water distribution system includes a pressure relief water retaining component, which is arranged on the first-stage gravity self-balancing water distribution pipeline and covers the cross-section of the first-stage gravity self-balancing water distribution pipeline, and the pressure relief water retaining component has air holes.

[0027] The second object of the present application is to provide a cooling tower, comprising the above-mentioned gravity self-balancing smooth water distribution system.

[0028] By adopting the above technical solution, the present application has the following beneficial effects:

[0029] The gravity self-balancing smooth water distribution system of the present application includes: first, second and third level gravity self-balancing water distribution pipes. Each second level gravity self-balancing water distribution pipe is connected to the first level gravity self-balancing water distribution pipe, and each third level gravity self-balancing water distribution pipe is connected to the second level gravity self-balancing water distribution pipe. The circulating water of the cooling tower will automatically release pressure after entering the first level gravity self-balancing water distribution pipe, and under the action of the water's own weight, it will evenly flow into the second level gravity self-balancing water distribution pipes on the surrounding side for double uniform water distribution. The water level height of each second level gravity self-balancing water distribution pipe is consistent, and the incoming water will flow to the third level gravity self-balancing water distribution pipe again. The pressure at each water nozzle directly or indirectly connected to the third level gravity self-balancing water distribution pipe is roughly the same, and the water output and spraying area of ​​each water nozzle are roughly the same, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower.

[0030] The water nozzles of the water distribution system of the present application are arranged on any one or more of the second-stage gravity self-balancing water distribution pipe, the third-stage gravity self-balancing water distribution pipe and the water distribution pipe. The water nozzles are located on the same horizontal plane, and each water nozzle can be located at the lowest position of the water distribution system. The water pressure at each water nozzle is roughly the same, and the water output and spraying area of ​​each water nozzle are roughly the same, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 A schematic diagram of the three-dimensional structure of a water distribution system provided in an embodiment of the present application is shown;

[0033] Figure 2 Show Figure 1 Enlarged view of part A in the middle;

[0034] Figure 3 A bottom-up view of a water distribution system provided in an embodiment of the present application is shown;

[0035] Figure 4 Show Figure 3 Enlarged view of middle part B;

[0036] Figure 5 A three-dimensional perspective view of the third-stage gravity self-balancing water distribution pipeline of the water distribution system provided in an embodiment of the present application is shown;

[0037] Figure 6 A partial structural diagram of a water distribution pipe of a water distribution system provided in an embodiment of the present application is shown;

[0038] Figure 7 A schematic diagram of the matching structure of two pressure relief and water retaining components of the water distribution system provided in an embodiment of the present application is shown.

[0039] In the figure: 1. First-stage gravity self-balancing water distribution pipeline; 11. Pressure relief port; 2. Second-stage gravity self-balancing water distribution pipeline; 21. Top opening; 22. Bottom wall; 23. Cylindrical wall; 3. Third-stage gravity self-balancing water distribution pipeline; 31. Notch; 3a. Middle pipe section; 3b. End pipe section; 4. Connecting pipe; 6. Pressure relief and water retaining component; 61. Air vent; 62. Connecting flange; 63. Extension piece; 8. Water distribution pipe; 9. Water nozzle; 10. Exhaust pipe. DETAILED DESCRIPTION

[0040] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] Embodiment 1

[0042] like Figures 1 to 7As shown, embodiment 1 of the present application provides a gravity self-balancing smooth water distribution system, comprising: a first-stage gravity self-balancing water distribution pipe 1, a plurality of second-stage gravity self-balancing water distribution pipes 2, a plurality of third-stage gravity self-balancing water distribution pipes 3 and a plurality of water nozzles 9, the first-stage gravity self-balancing water distribution pipe 1 has a pressure relief port 11 at the top, each of the second-stage gravity self-balancing water distribution pipes 2 is located on the circumference of the first-stage gravity self-balancing water distribution pipe 1, each of the second-stage gravity self-balancing water distribution pipes 2 is connected to the first-stage gravity self-balancing water distribution pipe 1, each of the third-stage gravity self-balancing water distribution pipes 3 is respectively connected to the corresponding second-stage gravity self-balancing water distribution pipe 2, a plurality of water distribution pipes 8 are arranged on the third-stage gravity self-balancing water distribution pipe 3, each of the water nozzles 9 is arranged on any one or more of the second-stage gravity self-balancing water distribution pipe 2, the third-stage gravity self-balancing water distribution pipe 3 and the water distribution pipe 8, and each of the water nozzles 9 is located in the same horizontal plane.

[0043] The gravity self-balancing smooth water distribution system of the present application includes: first, second and third level gravity self-balancing water distribution pipes 3. Each second level gravity self-balancing water distribution pipe 2 is connected to the first level gravity self-balancing water distribution pipe 1, and each third level gravity self-balancing water distribution pipe 3 is connected to the second level gravity self-balancing water distribution pipe 2. The circulating water of the cooling tower will automatically release pressure after entering the first level gravity self-balancing water distribution pipe 1, and under the action of the water's own weight, it will evenly flow into the second level gravity self-balancing water distribution pipes 2 on the surrounding side for double uniform water distribution. The water level height of each second level gravity self-balancing water distribution pipe 2 is consistent, and the incoming water will flow to the third level gravity self-balancing water distribution pipe 3 again. The pressure at each water nozzle 9 directly or indirectly connected to the third level gravity self-balancing water distribution pipe 3 is roughly the same, and the water output and spraying area of ​​each water nozzle 9 are roughly the same, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower.

[0044] Each water nozzle 9 of the water distribution system of the present application is arranged on any one or more of the second-stage gravity self-balancing water distribution pipe 2, the third-stage gravity self-balancing water distribution pipe 3 and the water distribution pipe 8. Each water nozzle 9 is located on the same horizontal plane, and each water nozzle 9 can be located at the lowest position of the water distribution system. The water pressure at each water nozzle 9 is roughly the same, and the water output and spraying area of ​​each water nozzle 9 are roughly the same, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower.

[0045] In some possible embodiments, combined with Figure 3 and Figure 4 As shown, the second-stage gravity self-balancing water distribution pipe 2 has a bottom wall 22 and a cylindrical wall 23 connected to the bottom wall 22, the lower edge of the water distribution pipe 8 and the bottom wall 22 are located in the same horizontal plane, and the water nozzle 9 is provided on the bottom wall 22 and the lower edge of the water distribution pipe 8.

[0046] The diameter of the second-stage gravity self-balancing water distribution pipeline 2 is larger than the third-stage gravity self-balancing water distribution pipeline 3 and the water distribution pipe 8. The lower edge of the second-stage gravity self-balancing water distribution pipeline 2 and the lower edge of the water distribution pipe 8 are located on the same horizontal plane, so it is convenient to set each water nozzle 9 at the same horizontal height. Each water nozzle 9 is located at the lowest edge of the second-stage gravity self-balancing water distribution pipeline 2 or the water distribution pipe 8, which is conducive to draining all the water in the pipeline and avoiding water accumulation in the pipeline.

[0047] In some possible implementations, such as Figure 4 As shown, a plurality of the water nozzles 9 are arranged on the bottom wall 22, some of the water nozzles 9 are arranged in sequence along the edge of the bottom wall 22, and some of the water nozzles 9 are located in the middle of the bottom wall 22. By arranging the water nozzles 9 on the bottom wall 22 of the second-stage gravity self-balancing water distribution pipe 2, the space is fully utilized. At the same time, by arranging the water nozzles 9 on the bottom wall 22, a large number of water nozzles 9 are evenly arranged on the lower surface of the entire water distribution system, which is conducive to uniform water distribution.

[0048] In some possible implementations, the third-stage gravity self-balancing water distribution pipeline 3 is connected to the cylindrical wall 23 so that the lower edge of the water distribution pipe 8 connected to the third-stage gravity self-balancing water distribution pipeline 3 and the bottom wall 22 are located in the same horizontal plane.

[0049] In the embodiment of the present application, the third-stage gravity self-balancing water distribution pipe 3 is horizontally connected to the side of the cylindrical wall 23 of the second-stage gravity self-balancing water distribution pipe 2 close to the bottom wall 22, so that the lower edge of the water distribution pipe 8 and the bottom wall 22 of the second-stage gravity self-balancing water distribution pipe 2 are located in the same horizontal plane, so that the bottom wall 22 and the water nozzles 9 on each water distribution pipe 8 are located at the same height.

[0050] In some possible embodiments, combined with Figures 4 to 6 A plurality of notches 31 are provided at the bottom of the third-stage gravity self-balancing water distribution pipeline 3, and each of the notches 31 is sequentially spaced along the length direction of the third-stage gravity self-balancing water distribution pipeline 3. Each of the water distribution pipes 8 is respectively embedded in a corresponding notch 31, and each of the water distribution pipes 8 is connected to the third-stage gravity self-balancing water distribution pipeline 3. By providing the notch 31 at one side of the bottom of the third-stage gravity self-balancing water distribution pipeline 3, the lower edge of the water distribution pipe 8 installed on the notch 31, the lower edge of the third-stage gravity self-balancing water distribution pipeline 3, and the bottom wall 22 of the second-stage gravity self-balancing water distribution pipeline 2 are basically located in the same horizontal plane.

[0051] In some possible implementations, such as Figure 5As shown, the notch portion 31 extends along the circumference of the third-level gravity self-balancing water distribution pipeline 3, the water distribution pipe also has a connecting port, the water distribution pipe 8 passes through the notch portion 31, the water distribution pipe 8 is perpendicular to the third-level gravity self-balancing water distribution pipeline 3, a weld is formed between the water distribution pipe 8 and the edge of the notch portion 31, the connecting port of the water distribution pipe is connected to the pipe cavity of the third-level gravity self-balancing water distribution pipeline 3, and the water distribution pipe 8 and the edge of the notch portion 31 are welded and fixed.

[0052] In some possible embodiments, at least part of the third-stage gravity self-balancing water distribution pipeline 3 includes two end pipe sections 3b and a middle pipe section 3a;

[0053] The middle pipe section 3a is located between two adjacent second-stage gravity self-balancing water distribution pipes 2, and its two ends are respectively connected to the cylindrical walls 23 of the two second-stage gravity self-balancing water distribution pipes 2. The two end pipe sections 3b are respectively connected to the cylindrical walls 23 of the two adjacent second-stage gravity self-balancing water distribution pipes 2, wherein the end pipe sections 3b and the two middle pipe sections 3a are located on the same horizontal line, and the end pipe sections 3b and the middle pipe sections 3a are both provided with water spray nozzles 9. Thus, a large number of water distribution pipes 8 can be conveniently and evenly arranged regularly.

[0054] Embodiment 2

[0055] like Figures 1 to 7 As shown, the second embodiment of the present application further describes the water distribution system in detail on the basis of the above-mentioned first embodiment. The first-level gravity self-balancing water distribution pipe 1 extends longitudinally, the first-level gravity self-balancing water distribution pipe 1 has a water inlet at the bottom, the first-level gravity self-balancing water distribution pipe 1 has a pressure relief port 11 at the top, each of the second-level gravity self-balancing water distribution pipes 2 is located on the periphery of the first-level gravity self-balancing water distribution pipe 1, each of the second-level gravity self-balancing water distribution pipes 2 is connected to the first-level gravity self-balancing water distribution pipe 1, the second-level gravity self-balancing water distribution pipe 2 has a top opening 21, each of the third-level gravity self-balancing water distribution pipes 3 is respectively located at the bottom of the corresponding second-level gravity self-balancing water distribution pipe 2, and is connected to the corresponding second-level gravity self-balancing water distribution pipe 2, wherein the liquid flows through the first-level gravity self-balancing water distribution pipe 1, the second-level gravity self-balancing water distribution pipe 2 and the third-level gravity self-balancing water distribution pipe 3 in sequence and is finally discharged.

[0056] A pressure relief port 11 is provided at the top of the first-stage gravity self-balancing water distribution pipe 1 of the water distribution system of the present application, so that the circulating water of the cooling tower will automatically release pressure after entering the first-stage gravity self-balancing water distribution pipe 1, and under the action of the water's own weight, it will evenly flow into multiple second-stage gravity self-balancing water distribution pipes 2 on the surrounding side for double uniform water distribution. The second-stage gravity self-balancing water distribution pipe is regulated by the atmospheric pressure of the open system and the bottom connecting pipe 4, and the water level heights of each second-stage gravity self-balancing water distribution pipe 2 are consistent. The incoming water will flow to the third-stage gravity self-balancing water distribution pipe 3 again, and the pressures at each water nozzle 9 directly or indirectly connected to the third-stage gravity self-balancing water distribution pipe 3 are roughly the same, and the water output and spraying area of ​​each water nozzle 9 are roughly the same, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower.

[0057] After the first-stage gravity self-balancing water distribution pipe 1 unloads the water inlet pressure, the water uses its own height difference to evenly flow through the connecting pipe 4 to the second-stage gravity self-balancing water distribution pipe 2 installed at the four corners. The first-stage gravity self-balancing water distribution pipe 1 is a water storage pipe, and a central water storage pipe with a reasonable height and diameter can be designed according to the water inlet flow of the cooling tower.

[0058] It should be noted that in the embodiment of the present application, the gravity self-balancing uniform water distribution system is not limited to only setting up three levels of gravity self-balancing water distribution pipes, and more levels of gravity self-balancing water distribution pipes can be arranged according to actual conditions. For example, the fourth level of gravity self-balancing water distribution pipes, the fifth level of gravity self-balancing water distribution pipes, and so on can be arranged downstream of the third level of gravity self-balancing water distribution pipe 3, and each water distribution pipe is directly arranged on the last level of gravity self-balancing water distribution pipe. In other words, the first level of gravity self-balancing water distribution pipe is not the most upstream level pipe, and a higher level of gravity self-balancing water distribution pipe can be arranged upstream of the first level of gravity self-balancing water distribution pipe, and the third level of gravity self-balancing water distribution pipe is the last level of gravity self-balancing water distribution pipe.

[0059] In some possible embodiments, the gravity self-balancing uniform water distribution system includes a plurality of connecting pipes 4, the diameter of the connecting pipes 4 is smaller than the second-stage gravity self-balancing water distribution pipeline 2 and the first-stage gravity self-balancing water distribution pipeline 1, and each of the connecting pipes 4 is arranged in sequence along the circumference of the first-stage gravity self-balancing water distribution pipeline 1 at intervals, and each of the connecting pipes 4 is located in the same plane, one end of each of the connecting pipes 4 is connected to the first-stage gravity self-balancing water distribution pipeline 1, and the other end of each of the connecting pipes 4 is respectively connected to the corresponding second-stage gravity self-balancing water distribution pipeline 2.

[0060] Since the gravity self-balancing uniform water distribution system is an open structure, each second-stage gravity self-balancing water distribution pipe 2 is connected to the first-stage gravity self-balancing water distribution pipe 1 through a connecting pipe 4, so the water level height of each second-stage gravity self-balancing water distribution pipe 2 must be consistent, and the amount of water pressed onto each third-stage gravity self-balancing water distribution pipe 3 is also the same.

[0061] The outer diameter of the connecting pipe 4 is much smaller than the first-stage self-balancing gravity water distribution pipe 1, so that multiple connecting pipes 4 are conveniently connected to the same height section of the first-stage self-balancing gravity water distribution pipe 1. The first-stage self-balancing gravity water distribution pipe 1 is provided with multiple openings spaced apart along the circumference, and each opening is located at the same height. Multiple connecting pipes 4 are spaced apart in sequence around the circumference of the first-stage self-balancing gravity water distribution pipe 1, and are respectively connected to the corresponding openings. Each connecting pipe 4 is located in the same horizontal plane. Each second-stage self-balancing gravity water distribution pipe 2 is arranged parallel to the first-stage self-balancing gravity water distribution pipe 1. The outer diameter of the second-stage self-balancing gravity water distribution pipe 2 is not greater than that of the first-stage self-balancing gravity water distribution pipe 1. The number of second-stage self-balancing gravity water distribution pipes 2 can be two, three, four or more.

[0062] The connecting pipe 4 can be vertically connected to the first-stage gravity self-balancing water distribution pipeline 1 and the second-stage gravity self-balancing water distribution pipeline 2. Each connecting pipe 4 can be formed by splicing a plurality of cylindrical pipes. Adjacent cylindrical pipes can be connected and fixed by clamps or welding.

[0063] In some possible embodiments, combined with Figure 1 and Figure 2 As shown, the gravity self-balancing uniform water distribution system includes a pressure relief water retaining component 6, which is arranged on the first-level gravity self-balancing water distribution pipeline 1 and covers the cross-section of the first-level gravity self-balancing water distribution pipeline 1. The pressure relief water retaining component 6 has an air vent 61.

[0064] A pressure relief port 11 is provided on the top of the first-stage gravity self-balancing water distribution pipe 1 of the water distribution system of the present application, so that the water will automatically release pressure after entering the first-stage gravity self-balancing water distribution pipe 1, and under the action of its own weight, it will evenly flow into the multiple second-stage gravity self-balancing water distribution pipes 2 on the surrounding side for double uniform water distribution, wherein a pressure relief water blocking component 6 is provided on the first-stage gravity self-balancing water distribution pipe 1, which does not affect the pressure relief of the incoming water, and also serves the purpose of blocking water, preventing the incoming water from being directly discharged from the pressure relief port 11 of the first-stage gravity self-balancing water distribution pipe 1.

[0065] In some possible embodiments, the gravity self-balancing uniform water distribution system includes a water inlet main pipe, the outer diameter of the water inlet main pipe is smaller than the outer diameter of the first-stage gravity self-balancing water distribution pipeline 1, the water inlet main pipe is located at the bottom of the first-stage gravity self-balancing water distribution pipeline 1, and the water inlet main pipe is connected to the water inlet at the bottom of the first-stage gravity self-balancing water distribution pipeline 1.

[0066] A water pump can be set at the bottom of the water inlet main pipe to pump water and drive water from bottom to top into the first-stage gravity self-balancing water distribution pipe 1. The first-stage gravity self-balancing water distribution pipe 1 is used to relieve the pressure of the incoming water and needs to be diverted to each second-stage gravity self-balancing water distribution pipe 2. Therefore, the first-stage gravity self-balancing water distribution pipe 1 is a water storage cylinder with a large diameter to meet the requirements of water storage and water distribution.

[0067] In some possible implementation schemes, each of the third-stage self-balancing gravity water distribution pipes 3 is located in the same plane, and each of the third-stage self-balancing gravity water distribution pipes 3 has the same size and shape, each of the third-stage self-balancing gravity water distribution pipes 3 is respectively connected to the same number of second-stage self-balancing gravity water distribution pipes 2, and each of the second-stage self-balancing gravity water distribution pipes 2 is symmetrically arranged in the third-stage self-balancing gravity water distribution pipe.

[0068] In this embodiment, the size and shape of each third-level gravity self-balancing water distribution pipe 3 are the same or symmetrical, so that on the path from the first-level gravity self-balancing water distribution pipe 1, the second-level gravity self-balancing water distribution pipe 2 to the third-level gravity self-balancing water distribution pipe 3, the water supply path of each third-level gravity self-balancing water distribution pipe 3 is roughly the same. Therefore, the water pressure in each third-level gravity self-balancing water distribution pipe 3 is basically the same, and each third-level gravity self-balancing water distribution pipe 3 can drain water evenly, thereby achieving uniform water distribution, which is not affected by the inlet water pressure and significantly improves the cooling efficiency of the cooling tower.

[0069] In some possible embodiments, combined with Figure 1 and Figure 4 As shown, the gravity self-balancing uniform water distribution system includes a plurality of water distribution pipes 8, each of which is arranged in the third-level gravity self-balancing water distribution pipeline 3, and each of which is arranged in sequence along the length direction of the third-level gravity self-balancing water distribution pipeline 3. A water nozzle 9 is connected to the water distribution pipe 8, and each of the water distribution pipes 8 is symmetrically arranged in the third-level gravity self-balancing water distribution pipeline 3 with the middle part (midpoint along the length direction) of the third-level gravity self-balancing water distribution pipeline 3 as the center. Each water distribution pipe 8 can be symmetrically arranged in the length direction of the third-level gravity self-balancing water distribution pipeline 3, and the number and position of the water nozzles 9 on each water distribution pipe 8 are equal, so that the water pressure of each symmetrically arranged water distribution pipe 8 and water nozzle 9 is roughly consistent, and the amount of water sprayed by each water nozzle 9 is roughly equal, so as to achieve the effect of uniform water distribution.

[0070] In some possible embodiments, combined with Figure 1 and Figure 3 As shown, the gravity self-balancing uniform water distribution system includes an exhaust pipe 10, and the exhaust pipe 10 is connected to the end of the third-level gravity self-balancing water distribution pipeline 3.

[0071] The water distribution system of the present application is provided with an exhaust pipe 10 on the third-stage gravity self-balancing water distribution pipe 3, which can effectively discharge the bubbles in the water distribution system. At the same time, the exhaust pipe 10 is connected to the outside air, so that the second-stage gravity self-balancing water distribution pipe 2, the third-stage gravity self-balancing water distribution pipe 3 and the exhaust pipe 10 form a U-shaped pipe structure, ensuring that the water flow rate and water pressure in the water distribution system are uniform, and the water pressure to each water distribution pipe 8 and water nozzle 9 is also consistent. The amount of water sprayed by each water nozzle 9 is equal, achieving the effect of uniform water distribution.

[0072] The exhaust pipes 10 are provided at both ends of the third-stage gravity self-balancing water distribution pipeline 3, which can smoothly discharge the bubbles in the third-stage gravity self-balancing water distribution pipeline 3 out of the system. At the same time, the exhaust pipe 10 is connected to the outside air, so that the entire system has a U-shaped tube structure, which ensures that the water flow rate and water pressure in the third-stage gravity self-balancing water distribution pipeline 3 are uniform, and the pressure to each water distribution pipe and water nozzle is also consistent, and the amount of water sprayed by each water nozzle is the same, so as to achieve the effect of uniform water distribution. When the amount of water is large, the water level in the first-stage gravity self-balancing water distribution pipeline is high, and the water output of the water nozzle is large. By utilizing the gravity of the water itself, the water output of the water nozzle is automatically adjusted, so that when the flow rate changes, it can also be sprayed evenly on the filler surface.

[0073] It should be noted that in the embodiment of the present application, all pipe fittings can be made of engineering steel pipes, which are acid-resistant and alkali-resistant, and will not deform or age under high temperature (such as 95°C) conditions for a long time, and are strong, durable and have a long service life.

[0074] Embodiment 3

[0075] The third embodiment of the present disclosure further describes the water distribution system in detail based on the first and second embodiments above. Figure 1 and Figure 3 As shown, the water distribution system includes an exhaust pipe 10, which is connected to the third-stage gravity self-balancing water distribution pipe 3. The diameter of the exhaust pipe 10 is smaller than that of the third-stage gravity self-balancing water distribution pipe 3. The exhaust pipe 10 is connected to the top of the third-stage gravity self-balancing water distribution pipe 3, and the exhaust pipe 10 is connected to the third-stage gravity self-balancing water distribution pipe 3, wherein the liquid is discharged after passing through the second-stage gravity self-balancing water distribution pipe 2 and the third-stage gravity self-balancing water distribution pipe 3 in sequence.

[0076] The water distribution system of the present application is provided with an exhaust pipe 10 on the third-level gravity self-balancing water distribution pipeline 3, which can effectively discharge the bubbles in the water distribution system, such as discharging the bubbles entering the third-level gravity self-balancing water distribution pipeline 3, so as to avoid affecting the smooth flow of water and causing uneven water distribution. The function of the exhaust pipe 10 is to allow these compressed air to be discharged along the exhaust pipe 10, so as to maintain the normal operation of the water distribution system. At the same time, the exhaust pipe 10 is connected to the outside air, so that the second-level gravity self-balancing water distribution pipeline 2, the third-level gravity self-balancing water distribution pipeline 3 and the exhaust pipe 10 form a U-shaped pipe structure, which ensures that the water flow rate and water pressure in the water distribution system are uniform, and the water pressure to each water distribution pipe 8 and the water nozzle 9 is also consistent, and the amount of water sprayed by each water nozzle 9 is equal, so as to achieve the effect of uniform water distribution.

[0077] In some possible embodiments, the exhaust pipe 10 is located at the end of the third-stage gravity self-balancing water distribution pipeline 3 along the length direction. This is conducive to the discharge of bubbles in the entire third-stage gravity self-balancing water distribution pipeline 3. When the third-stage gravity self-balancing water distribution pipeline 3 is unevenly arranged, one end is high and the other end is low. The exhaust pipe 10 of the present application is arranged at the end of the third-stage gravity self-balancing water distribution pipeline 3, located at the highest point, and the bubbles in the third-stage gravity self-balancing water distribution pipeline 3 will naturally move to the end of the third-stage gravity self-balancing water distribution pipeline 3 and finally be discharged from the exhaust pipe 10.

[0078] In some possible implementations, such as Figure 1 As shown, the exhaust pipes 10 are respectively provided at least at both ends of the third-stage gravity self-balancing water distribution pipeline 3. By providing the exhaust pipes 10 at both ends of the third-stage gravity self-balancing water distribution pipeline 3, it is more conducive to the discharge of bubbles. The exhaust pipes 10 at both ends of the third-stage gravity self-balancing water distribution pipeline 3 can allow the compressed air on both sides to be discharged along the exhaust pipes 10, thereby maintaining the normal operation of the water distribution system. And no matter which direction the third-stage gravity self-balancing water distribution pipeline 3 is tilted, the bubbles will be discharged from the corresponding exhaust pipes 10.

[0079] In some possible implementations, the second-stage gravity self-balancing water distribution pipeline 2 is located on the top of the third-stage gravity self-balancing water distribution pipeline 3 , and the second-stage gravity self-balancing water distribution pipeline 2 is parallel to the exhaust pipe 10 .

[0080] The second-stage gravity self-balancing water distribution pipe 2 has a top opening 21. The second-stage gravity self-balancing water distribution pipe 2, the third-stage gravity self-balancing water distribution pipe 3 and the exhaust pipe 10 form a U-shaped pipe structure, which ensures that the water flow rate and water pressure in the water distribution system are uniform, and the water pressure to each water distribution pipe 8 and water nozzle 9 is also consistent. The amount of water sprayed by each water nozzle 9 is equal, achieving the effect of uniform water distribution.

[0081] In some possible implementations, in a direction perpendicular to the horizontal plane, an extension length of the exhaust pipe 10 is equal to an extension length of the second-stage gravity self-balancing water distribution pipe 2 .

[0082] The second-stage gravity self-balancing water distribution pipeline 2, the third-stage gravity self-balancing water distribution pipeline 3 and the exhaust pipe 10 form a U-shaped pipe structure, and the water levels in the second-stage gravity self-balancing water distribution pipeline 2 and the exhaust pipe 10 are consistent. Therefore, the two are as close as possible to avoid the exhaust pipe 10 being too low, and when the water level is too high, water overflows from the exhaust pipe 10.

[0083] In some possible implementations, the diameter of the exhaust pipe 10 is smaller than the diameter of the second-stage gravity self-balancing water distribution pipe 2. The diameter of the exhaust pipe 10 has little effect on the exhaust, so in the embodiment of the present application, the diameter of the exhaust pipe 10 is minimized to reduce the weight of the entire water distribution system.

[0084] In some possible implementation schemes, both ends of the third-stage gravity self-balancing water distribution pipeline 3 are closed along the length direction. Exhaust pipes 10 are provided at both ends of the third-stage gravity self-balancing water distribution pipeline 3, so the closed ends are conducive to the stability of the water pressure in the entire third-stage gravity self-balancing water distribution pipeline 3, ensuring that the water flow rate and water pressure in the third-stage gravity self-balancing water distribution pipeline 3 are uniform, and the water pressure to each water distribution pipe 8 and water nozzle 9 is also consistent, and the amount of water sprayed by each water nozzle 9 is equal, achieving the effect of uniform water distribution.

[0085] In some possible implementation schemes, the gravity self-balancing uniform water distribution system includes a plurality of water distribution pipes 8, each of which is arranged in the third-level gravity self-balancing water distribution pipeline 3, and each of which is arranged in sequence along the length direction of the third-level gravity self-balancing water distribution pipeline 3. A water nozzle 9 is connected to the water distribution pipe 8. Among them, each water distribution pipe 8 can be arranged in the length direction of the third-level gravity self-balancing water distribution pipeline 3, so that the water pressure of each symmetrically arranged water distribution pipe 8 and water nozzle 9 is consistent, and the amount of water sprayed by each water nozzle 9 is roughly equal, so as to achieve the effect of uniform water distribution.

[0086] In some possible implementation schemes, each third-level gravity self-balancing water distribution pipeline 3 is connected to at least two second-level gravity self-balancing water distribution pipelines 2, and each second-level gravity self-balancing water distribution pipeline 2 is symmetrically arranged on the distribution pipeline with the middle part (middle part in the length direction) of the third-level gravity self-balancing water distribution pipeline 3 as the center. Each second-level gravity self-balancing water distribution pipeline 2 is symmetrically arranged on the third-level gravity self-balancing water distribution pipeline 3, so that the water supply paths of each water distribution pipe on the third-level gravity self-balancing water distribution pipeline 3 are roughly the same, the water supply paths of each water distribution pipe are basically consistent, and the amount of water sprayed by each water nozzle 9 on each water distribution pipe 8 is roughly equal, so as to achieve the effect of uniform water distribution.

[0087] Embodiment 4

[0088] like Figure 1 and Figure 2 As shown, the embodiment of the present application further describes in detail the water distribution system on the basis of the above embodiments, and the water distribution system includes: a first-stage gravity self-balancing water distribution pipe 1, a pressure relief water retaining component 6, and a second-stage gravity self-balancing water distribution pipe 2. The first-stage gravity self-balancing water distribution pipe 1 extends longitudinally, the bottom of the first-stage gravity self-balancing water distribution pipe 1 has a water inlet, the top of the first-stage gravity self-balancing water distribution pipe 1 has a pressure relief port 11, the pressure relief water retaining component 6 is arranged on the first-stage gravity self-balancing water distribution pipe 1, and covers the cross section of the first-stage gravity self-balancing water distribution pipe 1, the pressure relief water retaining component 6 has an air vent 61, the second-stage gravity self-balancing water distribution pipe 2 is located on the peripheral side of the first-stage gravity self-balancing water distribution pipe 1, and is connected to the outer wall of the first-stage gravity self-balancing water distribution pipe 1, and the second-stage gravity self-balancing water distribution pipe 2 is connected to the first-stage gravity self-balancing water distribution pipe 1.

[0089] A pressure relief port 11 is provided at the top of the first-stage gravity self-balancing water distribution pipe 1 of the water distribution system of the present application, so that the water will automatically release pressure after entering the first-stage gravity self-balancing water distribution pipe 1, and under the action of its own weight, it will evenly flow into the multiple second-stage gravity self-balancing water distribution pipes 2 on the surrounding side for double uniform water distribution, wherein a pressure relief water retaining component 6 is provided on the first-stage gravity self-balancing water distribution pipe 1, and the pressure relief water retaining component 6 has an air hole 61, which does not affect the pressure relief of the incoming water, and the compressed gas can be easily discharged, and the pressure relief water retaining component 6 also serves the purpose of blocking water, thereby preventing the incoming water from being directly discharged from the pressure relief port 11 at the top of the first-stage gravity self-balancing water distribution pipe 1.

[0090] In some possible embodiments, Figure 1 and Figure 2 As shown, the pressure relief water retaining component 6 is arranged in the tube cavity of the first-stage gravity self-balancing water distribution pipe 1. It does not occupy additional external space of the water distribution system, which is conducive to the compact design of the water distribution system. Furthermore, by arranging the pressure relief water retaining component 6 in the tube cavity of the first-stage gravity self-balancing water distribution pipe 1, and having a certain gap from the pressure relief port 11, water can be blocked in advance, and the discharge of the incoming water from the pressure relief port 11 at the top is more effectively avoided. Without considering the occupied space, the pressure relief water retaining component 6 can also be at least partially exposed at the top of the first-stage gravity self-balancing water distribution pipe 1, and cover the pressure relief port 11.

[0091] In some possible implementations, the pressure relief water retaining component 6 is detachably connected to the first-stage gravity self-balancing water distribution pipeline 1. Thus, the pressure relief water retaining component 6 can be easily replaced. The pressure relief water retaining component 6 can be detachably connected to the first-stage gravity self-balancing water distribution pipeline 1 by fasteners, and the pressure relief water retaining component 6 can also be detachably connected to the first-stage gravity self-balancing water distribution pipeline 1 by a clamping structure.

[0092] In some possible implementations, the pressure relief water retaining component 6 is fixedly connected to the first-stage gravity self-balancing water distribution pipeline 1. The pressure relief water retaining component 6 can be fastened to the first-stage gravity self-balancing water distribution pipeline 1 by fasteners. The pressure relief water retaining component 6 can be fixed to the first-stage gravity self-balancing water distribution pipeline 1 by welding or bonding.

[0093] In some possible implementations, the first-stage gravity self-balancing water distribution pipeline 1 is a round tube, the pressure relief water retaining component 6 is a round pancake, the pressure relief water retaining component 6 is located on the inner wall of the first-stage gravity self-balancing water distribution pipeline 1, and the thickness end surface of the circumferential side of the pressure relief water retaining component 6 is attached to the inner wall of the first-stage gravity self-balancing water distribution pipeline 1. A large number of air holes 61 are distributed on the pressure relief water retaining component 6, and the air holes 61 penetrate the pressure relief water retaining component 6 along the thickness direction of the pressure relief water retaining component 6.

[0094] In some possible implementations, such as Figure 7 As shown, the open water distribution system for the cooling tower includes at least two of the pressure relief water retaining components 6, and each of the pressure relief water retaining components 6 is arranged in sequence along the length direction of the first-stage gravity self-balancing water distribution pipe 1. Each of the pressure relief water retaining components 6 can be arranged at intervals. The water retaining effect is further increased by arranging multiple pressure relief water retaining components 6. After the high-speed water flow enters a certain height from the water inlet at the bottom of the first-stage gravity self-balancing water distribution pipe 1, it will be blocked by multiple pressure relief water retaining components 6, so that the water inlet flow rate is reduced, achieving the purpose of rapid pressure relief. After the incoming water passes through a pressure relief water retaining component 6, it will also be blocked by the pressure relief water retaining component 6 of the previous stage. Through the water retaining effect of the multiple-stage pressure relief water retaining components 6, the effect of rapid pressure relief can be achieved.

[0095] In some possible implementations, in an open water distribution system for a cooling tower, at least some of the air holes 61 on two adjacent pressure relief water retaining components 6 are staggered along the length direction of the first-stage gravity self-balancing water distribution pipeline 1. The staggered arrangement of the air holes 61 on the adjacent pressure relief water retaining components 6 can prevent some water from smoothly passing through the air holes 61 on the two pressure relief water retaining components 6 in sequence along the longitudinal direction, thereby resulting in poor pressure relief effect of the pressure relief water retaining components 6.

[0096] In some possible implementation schemes, the side edges of the pressure relief and water retaining component 6 are welded to the inner wall of the first-stage gravity self-balancing water distribution pipeline 1 .

[0097] The inner wall of the first-stage gravity self-balancing water distribution pipe 1 may be provided with a positioning support portion, and the pressure relief water retaining component 6 is supported on the positioning support portion. The support portion plays the role of a limiting support, and assists in the rapid assembly of the pressure relief water retaining component 6. For example, in the process of assembling the pressure relief water retaining component 6, the pressure relief water retaining component 6 is first placed inside the first-stage gravity self-balancing water distribution pipe 1, and horizontally supported on the positioning support portion, and then welding or fastener assembly operations are performed to fix the pressure relief water retaining component 6 to the first-stage gravity self-balancing water distribution pipe 1. It should be noted that the positioning support portion can be an inner convex rib formed by the protrusion of the inner wall of the first-stage gravity self-balancing water distribution pipe 1.

[0098] In some possible implementations, the second-stage gravity self-balancing water distribution pipeline 2 is connected to the first-stage gravity self-balancing water distribution pipeline 1 through a connecting pipe 4, and the pressure relief water retaining component 6 is located between the connecting pipe 4 and the pressure relief port 11 in the height direction.

[0099] The pressure relief water retaining component 6 is located higher than each connecting pipe 4, which can reduce the influence on the water in the first-stage gravity self-balancing water distribution pipeline 1 being diverted to the second-stage gravity self-balancing water distribution pipeline 2. This is conducive to uniform water distribution of the water distribution system.

[0100] In some possible implementation schemes, the water distribution system includes at least two pressure relief water retaining components 6, the pressure relief water retaining components 6 are disc bodies, a plurality of air holes 61 are arranged on the disc bodies, each pressure relief water retaining component 6 is arranged in sequence along the longitudinal direction, and a plurality of extension pieces 63 are arranged on the edge of the pressure relief water retaining component 6, and two ends of the extension piece 63 are respectively connected to two pressure relief water retaining components 6, and each extension piece 63 is arranged in sequence along the circumference of the disc body. A connecting flange 62 is arranged on the edge of the pressure relief water retaining component 6 at the top, and a connecting hole is arranged on the connecting flange 62, and a fastener is penetrated through the pipe wall and the connecting flange 62 of the first-level gravity self-balancing water distribution pipeline 1, and the connecting flange 62 is fixed to the pipe wall of the first-level gravity self-balancing water distribution pipeline 1. The connecting flange 62 of the topmost pressure relief water retaining component 6 extends to one side of the pressure relief port, and the connecting flange 62 is exposed to the pressure relief port, which is convenient for operation on one side of the pressure relief port, and the connecting flange 62 is assembled on the first-level gravity self-balancing water distribution pipeline 1 by fasteners. The fastener may be a bolt.

[0101] Embodiment 5

[0102] The embodiment of the present application provides a cooling tower, including the water distribution system of the above embodiment. Specifically, the cooling tower may include a tower body, fillers and the above water distribution system, the fillers are arranged on the tower body, the water distribution system is arranged on the tower body and located on the top of the fillers, the water distribution system sprays water on the fillers, increases the contact area and time between water and air, and reduces the water temperature through heat exchange between water and air.

[0103] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0104] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0105] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A gravity self-balancing smooth water distribution system, characterized in that: include: A first-stage gravity self-balancing water distribution pipeline, wherein the first-stage gravity self-balancing water distribution pipeline has a pressure relief port at the top; A plurality of second-stage self-balancing gravity water distribution pipes, each of which is located on the periphery of the first-stage self-balancing gravity water distribution pipe, and each of which is connected to the first-stage self-balancing gravity water distribution pipe; A plurality of third-level gravity self-balancing water distribution pipes, each of which is connected to a corresponding second-level gravity self-balancing water distribution pipe, and each of which is provided with a plurality of water distribution pipes; A plurality of water spray nozzles are provided on any one or more of the second-stage gravity self-balancing water distribution pipeline, the third-stage gravity self-balancing water distribution pipeline and the water distribution pipe, and each of the water spray nozzles is located in the same horizontal plane.

2. The gravity self-balancing smooth water distribution system according to claim 1 is characterized in that: The second-stage gravity self-balancing water distribution pipeline has a bottom wall and a cylindrical wall connected to the bottom wall; The lower edge of the water distribution pipe and the bottom wall are located in the same horizontal plane; The water spray nozzles are arranged on the bottom wall and the lower edge of the water distribution pipe.

3. The gravity self-balancing smooth water distribution system according to claim 2 is characterized in that: A plurality of the water spray nozzles are arranged on the bottom wall, some of the water spray nozzles are arranged in sequence along the edge of the bottom wall, and some of the water spray nozzles are located in the middle of the bottom wall.

4. The gravity self-balancing smooth water distribution system according to claim 2, characterized in that: The third-stage gravity self-balancing water distribution pipeline is connected to the cylindrical wall, so that the lower edge of the water distribution pipe connected to the third-stage gravity self-balancing water distribution pipeline and the bottom wall are located in the same horizontal plane.

5. The gravity self-balancing smooth water distribution system according to claim 2, characterized in that: A plurality of notches are arranged at the bottom of the third-stage gravity self-balancing water distribution pipeline, and the notches are arranged in sequence and at intervals along the length direction of the third-stage gravity self-balancing water distribution pipeline; Each of the water distribution pipes is embedded in a corresponding notch portion, and each of the water distribution pipes is connected to the third-stage gravity self-balancing water distribution pipeline.

6. The gravity self-balancing smooth water distribution system according to claim 5, characterized in that: The notch portion extends along the circumference of the third-stage gravity self-balancing water distribution pipeline; The water distribution pipe passes through the notch, and the water distribution pipe is perpendicular to the third-level gravity self-balancing water distribution pipeline; A weld is formed between the water distribution pipe and the edge of the notch, and the water distribution pipe and the edge of the notch are welded and fixed.

7. The gravity self-balancing smooth water distribution system according to claim 2, characterized in that: At least part of the third stage gravity self-balancing water distribution pipeline includes two end pipe sections and a middle pipe section; The middle pipe section is located between two adjacent second-stage gravity self-balancing water distribution pipes, and the two ends are respectively connected to the cylindrical walls of the two second-stage gravity self-balancing water distribution pipes; The two end pipe sections are respectively connected to the cylindrical walls of two adjacent second-stage gravity self-balancing water distribution pipes; Wherein, the end pipe section and the two middle pipe sections are located on the same horizontal line, and water spray nozzles are arranged on the end pipe section and the middle pipe section.

8. The gravity self-balancing smooth water distribution system according to any one of claims 1 to 7, characterized in that: Exhaust pipes are arranged at both ends of the third-stage gravity self-balancing water distribution pipeline.

9. The gravity self-balancing smooth water distribution system according to any one of claims 1 to 7, characterized in that: It comprises a pressure relief and water retaining component, which is arranged on the first-stage gravity self-balancing water distribution pipeline and covers the cross section of the first-stage gravity self-balancing water distribution pipeline, and has air holes.

10. A cooling tower, characterized in that: It comprises a gravity self-balancing smooth water distribution system as described in any one of claims 1-9.

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