Gravity self-balancing uniform distribution system and cooling tower

Abstract

The embodiment of the application provides a gravity self-balancing uniform water distribution system, which comprises first, second and third stage gravity self-balancing water distribution pipelines. Each second stage gravity self-balancing water distribution pipeline is connected to the first stage gravity self-balancing water distribution pipeline, and each third stage gravity self-balancing water distribution pipeline is connected to the second stage gravity self-balancing water distribution pipeline. The circulating water of the cooling tower is automatically depressurized after entering the first stage gravity self-balancing water distribution pipeline, and flows into each second stage gravity self-balancing water distribution pipeline on the basis of the self-weight of the water to realize double uniform water distribution. The water level height of each second stage gravity self-balancing water distribution pipeline is consistent, and the water inlet flows to the third stage gravity self-balancing water distribution pipeline again. The pressure at each water nozzle directly or indirectly connected to the third stage gravity self-balancing water distribution pipeline is consistent, and the water outlet of each water nozzle and the spraying area are substantially the same, so that uniform water distribution is realized, the water inlet is not affected by the water pressure, and the cooling efficiency of the cooling tower is significantly improved.

Description

Technical Field

[0001] This application relates to the field of cooling tower technology, specifically to a gravity self-balancing uniform water distribution system and a cooling tower. Background Technology

[0002] The water distribution system is a crucial component of counter-flow cooling towers, and its effectiveness directly impacts the tower's operational efficiency. In related technologies, the water distribution system consists of an inlet pipe, nozzles, straight pipes, an umbrella-shaped disc, and a toothed base. The straight pipes are distributed horizontally at the top of the packing material. The inlet pipe connects directly to the straight pipes, and the nozzles are mounted on them. Water enters the straight pipes through the inlet pipe and is sprayed out by the nozzles, directly hitting the toothed umbrella-shaped base, then reflecting off the disc, and finally splashing outwards onto the packing material. This water distribution system has specific requirements for water pressure and flow rate. The water pressure gradually changes along the straight pipe's path; only when the water flow and pressure are appropriate can the designed uniform water distribution be achieved. When the flow rate decreases or the water pressure drops, the water distribution system is prone to uneven distribution, leading to a smaller distribution area and areas on the packing surface that are not properly watered (dry zones), thus reducing the cooling tower's cooling efficiency. Summary of the Invention

[0003] To address one of the aforementioned technical deficiencies, this application provides a gravity-based self-balancing uniform water distribution system and a cooling tower to solve the problem in the prior art where water pressure changes easily lead to uneven water distribution and low cooling efficiency.

[0004] The present invention adopts the following technical solution:

[0005] A gravity-based self-balancing uniform water distribution system, comprising:

[0006] The first-stage gravity self-balancing water distribution pipe extends longitudinally, has a water inlet at the bottom, and a pressure relief port at the top.

[0007] Multiple second-stage gravity self-balancing water distribution pipes are provided, each second-stage gravity self-balancing water distribution pipe is located around the first-stage gravity self-balancing water distribution pipe, each second-stage gravity self-balancing water distribution pipe is connected to the first-stage gravity self-balancing water distribution pipe, and each second-stage gravity self-balancing water distribution pipe has an open top.

[0008] Several third-stage gravity self-balancing water distribution pipes, each of which is located at the bottom of a corresponding second-stage gravity self-balancing water distribution pipe and connected to the corresponding second-stage gravity self-balancing water distribution pipe.

[0009] The liquid flows sequentially through the first-stage gravity self-balancing water distribution pipe, the second-stage gravity self-balancing water distribution pipe, and the third-stage gravity self-balancing water distribution pipe.

[0010] Optionally, the gravity self-balancing uniform water distribution system includes multiple connecting pipes, the diameter of which is smaller than that of the second-stage gravity self-balancing water distribution pipe and the first-stage gravity self-balancing water distribution pipe.

[0011] Each of the connecting pipes is arranged sequentially at intervals along the circumference of the first-stage gravity self-balancing water distribution pipe, and each of the connecting pipes is located in the same plane. One end of each connecting pipe is connected to the first-stage gravity self-balancing water distribution pipe, and the other end of each connecting pipe is connected to the corresponding second-stage gravity self-balancing water distribution pipe.

[0012] Optionally, at least two adjacent second-stage gravity self-balancing water distribution pipes are connected by a connecting pipe along the circumference of the first-stage gravity self-balancing water distribution pipe.

[0013] The connecting pipe connects the two ends of the second-stage gravity self-balancing water distribution pipe, and the connecting pipe is located between the connecting pipe and the third-stage gravity self-balancing water distribution pipe.

[0014] Optionally, the gravity self-balancing uniform water distribution system includes a pressure relief and water blocking component, which is disposed on the first-stage gravity self-balancing water distribution pipe and covers the cross-section of the first-stage gravity self-balancing water distribution pipe. The pressure relief and water blocking component has vent holes.

[0015] Optionally, the gravity-based self-balancing uniform water distribution system includes an inlet main pipe;

[0016] The outer diameter of the main inlet pipe is smaller than the outer diameter of the first-stage gravity self-balancing water distribution pipe.

[0017] The main inlet pipe is located at the bottom of the first-stage gravity self-balancing water distribution pipe, and the main inlet pipe is connected to the inlet at the bottom of the first-stage gravity self-balancing water distribution pipe.

[0018] Optionally, each of the third-stage gravity self-balancing water distribution pipes is located in the same plane, and each of the third-stage gravity self-balancing water distribution pipes has the same size and shape.

[0019] Each third-stage gravity self-balancing water distribution pipe is connected to the same number of second-stage gravity self-balancing water distribution pipes, and each second-stage gravity self-balancing water distribution pipe is symmetrically arranged on the third-stage gravity self-balancing water distribution pipe.

[0020] Optionally, the gravity self-balancing uniform water distribution system includes multiple water distribution pipes, each of which is installed in the third-stage gravity self-balancing water distribution pipe. The water distribution pipes are arranged sequentially at intervals along the length of the third-stage gravity self-balancing water distribution pipe, and each water distribution pipe is connected to a spray nozzle.

[0021] Each of the aforementioned water distribution pipes is symmetrically arranged in the third-stage gravity self-balancing water distribution pipe with the middle part of the third-stage gravity self-balancing water distribution pipe as the center.

[0022] Optionally, the gravity self-balancing uniform water distribution system is characterized by including an exhaust pipe, which is connected to the end of the third-stage gravity self-balancing water distribution pipe.

[0023] Optionally, the gravity self-balancing uniform water distribution system includes multiple water distribution sub-units, and each of the water distribution sub-units is arranged in multiple rows and columns on a horizontal plane;

[0024] Each of the water distribution subunits includes a first-stage gravity self-balancing water distribution pipe, a second-stage gravity self-balancing water distribution pipe, and a third-stage gravity self-balancing water distribution pipe.

[0025] The second objective of this application is to provide a cooling tower, including the aforementioned gravity self-balancing uniform water distribution system.

[0026] By adopting the above technical solution, this application has the following beneficial effects:

[0027] The gravity self-balancing uniform water distribution system of this application includes: first, second, and third stage gravity self-balancing water distribution pipes. Each second-stage gravity self-balancing water distribution pipe is connected to the first-stage gravity self-balancing water distribution pipe, and each third-stage gravity self-balancing water distribution pipe is connected to the second-stage gravity self-balancing water distribution pipe. The circulating water from the cooling tower automatically depressurizes after entering the first-stage gravity self-balancing water distribution pipe and, under its own weight, flows evenly into each of the surrounding second-stage gravity self-balancing water distribution pipes for double uniform water distribution. The water level in each second-stage gravity self-balancing water distribution pipe is consistent. The incoming water then flows again to the third-stage gravity self-balancing water distribution pipe. The pressure at each nozzle directly or indirectly connected to the third-stage gravity self-balancing water distribution pipe is approximately consistent, and the water output and spray area of ​​each nozzle are approximately the same, thus achieving uniform water distribution unaffected by the incoming water pressure and significantly improving the cooling efficiency of the cooling tower. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1This is a three-dimensional structural schematic diagram of the water distribution system provided in an embodiment of this application;

[0030] Figure 2 Show Figure 1 Enlarged view of section A in the middle;

[0031] Figure 3 Show Figure 1 Enlarged view of section B;

[0032] Figure 4 This is another perspective view showing the three-dimensional structure of the water distribution system provided in the embodiment of this application;

[0033] Figure 5 The illustration shows a side view of the water distribution system provided in this embodiment, which is composed of multiple water distribution sub-units.

[0034] Figure 6 The diagram shows a top view of the water distribution system provided in this embodiment, which consists of multiple water distribution sub-units.

[0035] In the diagram: 100, water distribution subunit; 1, first-stage gravity self-balancing water distribution pipe; 11, pressure relief port; 2, second-stage gravity self-balancing water distribution pipe; 21, top opening; 3, third-stage gravity self-balancing water distribution pipe; 4, connecting pipe; 5, connecting pipe; 6, pressure relief and water blocking component; 61, vent hole; 7, main water inlet pipe; 8, branch water pipe; 9, spray nozzle; 10, exhaust pipe. Detailed Implementation

[0036] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0037] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Example 1

[0041] like Figures 1 to 6 As shown, Embodiment 1 of this application provides a gravity self-balancing uniform water distribution system, including: a first-stage gravity self-balancing water distribution pipe 1, a second-stage gravity self-balancing water distribution pipe 2, and a third-stage gravity self-balancing water distribution pipe 3. The first-stage gravity self-balancing water distribution pipe 1 extends longitudinally. The first-stage gravity self-balancing water distribution pipe 1 has an inlet at its bottom and a pressure relief port 11 at its top. Each second-stage gravity self-balancing water distribution pipe 2 is located around the first-stage gravity self-balancing water distribution pipe 1 and is connected to the first-stage gravity self-balancing water distribution pipe 1. Each second-stage gravity self-balancing water distribution pipe 2 has a top opening 21. Each third-stage gravity self-balancing water distribution pipe 3 is located at the bottom of the corresponding second-stage gravity self-balancing water distribution pipe 2 and is connected to the corresponding second-stage gravity self-balancing water distribution pipe 2. Liquid flows sequentially through the first-stage gravity self-balancing water distribution pipe 1, the second-stage gravity self-balancing water distribution pipe 2, and the third-stage gravity self-balancing water distribution pipe 3 and is finally discharged.

[0042] The water distribution system of this application has a pressure relief port 11 at the top of the first-stage gravity self-balancing water distribution pipe 1, which allows the circulating water of the cooling tower to automatically depressurize after entering the first-stage gravity self-balancing water distribution pipe 1. Under the action of its own weight, the water flows evenly into multiple second-stage gravity self-balancing water distribution pipes 2 around the perimeter for double uniform water distribution. Through the atmospheric pressure of the open system and the adjustment of the bottom connecting pipe 4, the water level of each second-stage gravity self-balancing water distribution pipe 2 is consistent. The incoming water will flow again to the third-stage gravity self-balancing water distribution pipe 3. The pressure at each spray nozzle 9 directly or indirectly connected to the third-stage gravity self-balancing water distribution pipe 3 is approximately consistent. The water output and spray area of ​​each spray nozzle 9 are approximately the same, thereby achieving uniform water distribution, unaffected by the incoming water pressure, and significantly improving the cooling efficiency of the cooling tower.

[0043] After the first-stage gravity self-balancing water distribution pipe 1 unloads the inlet water pressure, it utilizes the water level difference to flow evenly through the connecting pipe 4 into 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 inlet water flow rate of the cooling tower.

[0044] It should be noted that, in this embodiment, the gravity self-balancing uniform water distribution system is not limited to only three-stage gravity self-balancing water distribution pipes; more stages of gravity self-balancing water distribution pipes can be arranged according to actual conditions. For example, a fourth-stage gravity self-balancing water distribution pipe, a fifth-stage gravity self-balancing water distribution pipe, and so on, can be arranged downstream of the third-stage gravity self-balancing water distribution pipe 3.

[0045] In some possible implementations, the gravity self-balancing uniform water distribution system includes a plurality of connecting pipes 4, the diameter of which is smaller than that of the second-stage gravity self-balancing water distribution pipe 2 and the first-stage gravity self-balancing water distribution pipe 1. Each of the connecting pipes 4 is arranged sequentially at intervals along the circumference of the first-stage gravity self-balancing water distribution pipe 1, and each of the connecting pipes 4 is located in the same plane. One end of each connecting pipe 4 is connected to the first-stage gravity self-balancing water distribution pipe 1, and the other end of each connecting pipe 4 is respectively connected to the corresponding second-stage gravity self-balancing water distribution pipe 2.

[0046] Since the gravity self-balancing uniform water distribution system is an open structure, 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 through a connecting pipe 4. Therefore, the water level of each of the second-stage gravity self-balancing water distribution pipes 2 is definitely the same, and the amount of water pressed into each of the third-stage gravity self-balancing water distribution pipes 3 is also the same.

[0047] The outer diameter of the connecting pipe 4 is much smaller than that of the first-stage gravity self-balancing water distribution pipe 1, facilitating the connection of multiple connecting pipes 4 to the same height section of the first-stage gravity self-balancing water distribution pipe 1. The first-stage gravity self-balancing water distribution pipe 1 has multiple openings spaced apart circumferentially, all at the same height. Multiple connecting pipes 4 are sequentially spaced around the circumference of the first-stage gravity self-balancing water distribution pipe 1 and connected to their respective openings. All connecting pipes 4 are located in the same horizontal plane. Each second-stage gravity self-balancing water distribution pipe 2 is parallel to the first-stage gravity self-balancing water distribution pipe 1. The outer diameter of the second-stage gravity self-balancing water distribution pipe 2 is no larger than that of the first-stage gravity self-balancing water distribution pipe 1. The number of second-stage gravity self-balancing water distribution pipes 2 can be two, three, four, or more.

[0048] The connecting pipe 4 can be vertically connected to the first-stage gravity self-balancing water distribution pipe 1 and the second-stage gravity self-balancing water distribution pipe 2, respectively. Each connecting pipe 4 can be formed by splicing together several cylindrical pipes. Adjacent cylindrical pipes can be connected and fixed by clamps.

[0049] In some possible implementations, such as Figure 1 As shown, at least two adjacent second-stage gravity self-balancing water distribution pipes 2 are connected by a connecting pipe 5 along the circumferential direction of the first-stage gravity self-balancing water distribution pipe 1. The connecting pipe 5 connects the two ends of the second-stage gravity self-balancing water distribution pipe 2, and the connecting pipe 5 is located between the connecting pipe 4 and the third-stage gravity self-balancing water distribution pipe 3 in the height direction.

[0050] The connection pipe 5 increases the overall structural strength of each second-stage gravity self-balancing water distribution pipe 2, resulting in a well-integrated water distribution system, less susceptibility to deformation, and extended service life. The connection pipe 5 can be a hollow pipe, connecting two adjacent second-stage gravity self-balancing water distribution pipes 2, forming a U-shaped pipe structure between each pair of second-stage gravity self-balancing water distribution pipes 2. This ensures uniform water flow rate and pressure within the water distribution system, consistent water pressure supplied to each third-stage gravity self-balancing water distribution pipe 3, and equal water volume distributed to each third-stage gravity self-balancing water distribution pipe 3, achieving a uniform water distribution effect.

[0051] In some possible implementation schemes, combined Figure 1 and Figure 2 As shown, the gravity self-balancing uniform water distribution system includes a pressure relief and water blocking component 6. The pressure relief and water blocking component 6 is disposed 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 and water blocking component 6 has a vent hole 61.

[0052] The water distribution system of this application has a pressure relief port 11 at the top of the first-stage gravity self-balancing water distribution pipe 1, so that the water will automatically depressurize after entering the first-stage gravity self-balancing water distribution pipe 1, and under its own weight, it will flow evenly into the multiple second-stage gravity self-balancing water distribution pipes 2 around it for double uniform water distribution. The first-stage gravity self-balancing water distribution pipe 1 is equipped with a pressure relief and water blocking component 6, which does not affect the pressure relief of the water inlet, and at the same time serves to block the water, preventing the water inlet from being discharged directly from the pressure relief port 11 of the first-stage gravity self-balancing water distribution pipe 1.

[0053] In some possible implementations, the gravity self-balancing uniform water distribution system includes a main inlet pipe 7, the outer diameter of which is smaller than the outer diameter of the first-stage gravity self-balancing water distribution pipe 1. The main inlet pipe 7 is located at the bottom of the first-stage gravity self-balancing water distribution pipe 1, and the main inlet pipe 7 is connected to the inlet at the bottom of the first-stage gravity self-balancing water distribution pipe 1.

[0054] A water pump can be installed at the bottom of the main inlet pipe 7 to pump 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 depressurize the incoming water and needs to distribute it to the various second-stage gravity self-balancing water distribution pipes 2. Therefore, the first-stage gravity self-balancing water distribution pipe 1 is a water storage tank with a large diameter to meet the requirements of water storage and distribution.

[0055] In some possible implementations, each of the third-stage gravity self-balancing water distribution pipes 3 is located in the same plane, and each of the third-stage gravity self-balancing water distribution pipes 3 has the same size and shape. Each third-stage gravity self-balancing water distribution pipe 3 is connected to the same number of second-stage gravity self-balancing water distribution pipes 2, and each second-stage gravity self-balancing water distribution pipe 2 is symmetrically arranged on the third-stage gravity self-balancing water distribution pipe.

[0056] In this implementation scheme, the dimensions and shapes of each third-stage gravity self-balancing water distribution pipe 3 are the same or symmetrical, so that the water supply path of each third-stage gravity self-balancing water distribution pipe 3 is roughly the same along the path from the first-stage gravity self-balancing water distribution pipe 1, the second-stage gravity self-balancing water distribution pipe 2 to the third-stage gravity self-balancing water distribution pipe 3. Therefore, the water pressure in each third-stage gravity self-balancing water distribution pipe 3 is basically the same, and each third-stage gravity self-balancing water distribution pipe 3 can drain water evenly, thereby achieving uniform water distribution, unaffected by the inlet water pressure, and significantly improving the cooling efficiency of the cooling tower.

[0057] In some possible implementation schemes, combined Figure 1 and Figure 4As shown, the gravity self-balancing uniform water distribution system includes multiple water distribution pipes 8, each of which is installed in the third-stage gravity self-balancing water distribution pipe 3. The water distribution pipes 8 are arranged at intervals along the length of the third-stage gravity self-balancing water distribution pipe 3. Each water distribution pipe 8 is connected to a spray nozzle 9. The water distribution pipes 8 are symmetrically arranged with the middle point (the midpoint along the length) of the third-stage gravity self-balancing water distribution pipe 3 as the center. The water distribution pipes 8 can be arranged in this manner along the length of the third-stage gravity self-balancing water distribution pipe 3. The number and position of the spray nozzles 9 on each water distribution pipe 8 are equal, ensuring that the water pressure of each symmetrically arranged water distribution pipe 8 and spray nozzle 9 is approximately the same, and the water volume sprayed by each spray nozzle 9 is approximately equal, achieving a uniform water distribution effect.

[0058] In some possible implementation schemes, combined Figure 1 and Figure 3 As shown, the gravity self-balancing uniform water distribution system includes an exhaust pipe 10, which is connected to the end of the third-stage gravity self-balancing water distribution pipe 3.

[0059] The water distribution system of this application has an exhaust pipe 10 installed on the third-stage gravity self-balancing water distribution pipe 3, which can effectively expel air 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, which ensures that the water flow rate and water pressure in the water distribution system are uniform, the water pressure to each water distribution pipe 8 and the water nozzle 9 are also consistent, and the water volume sprayed by each water nozzle 9 is equal, so as to achieve the effect of uniform water distribution.

[0060] Both ends of the third-stage gravity self-balancing water distribution pipe 3 are equipped with vent pipes 10, which can smoothly expel air bubbles from the system. Simultaneously, the vent pipes 10 are connected to the outside air, making the entire system a U-shaped pipe structure. This ensures uniform water flow rate and pressure within the third-stage gravity self-balancing water distribution pipe 3, resulting in consistent pressure on each branch pipe and nozzle, and thus uniform water volume from each nozzle, achieving a uniform water distribution effect. When the water volume is large, the water level in the first-stage gravity self-balancing water distribution pipe is high, and the nozzle output is large. By utilizing the weight of the water itself, the spray volume from the nozzles is automatically adjusted, achieving uniform spraying onto the packing surface even when the flow rate changes.

[0061] It should be noted that in the embodiments of this application, all pipe fittings can be made of engineering steel pipes, which have acid and alkali resistance. They do not deform or age under high temperature (such as 95℃) conditions for a long time, are sturdy and durable, and have a long service life.

[0062] In some possible implementation schemes, combined Figure 5 and Figure 6 As shown, the gravity self-balancing uniform water distribution system includes multiple water distribution sub-units 100, which are arranged in multiple rows and columns on a horizontal plane. Each water distribution sub-unit 100 includes a first-stage gravity self-balancing water distribution pipe 1, a second-stage gravity self-balancing water distribution pipe 2, and a third-stage gravity self-balancing water distribution pipe 3. The structure of each water distribution sub-unit 100 is as described above. An appropriate number of water distribution sub-units 100 can be selected according to the actual size and needs of the cooling tower. Each water distribution sub-unit 100 may have a corresponding main water inlet pipe 7, and each main water inlet pipe 7 may be connected to a water pump. Alternatively, each main water inlet pipe 7 may be connected to a main pipe, and a water pump may be installed on the main pipe.

[0063] Example 2

[0064] This second embodiment of the disclosure further describes the water distribution system in detail, based on the first embodiment described above. Figure 1 and Figure 3 As shown, the water distribution system includes: a third-stage gravity self-balancing water distribution pipe 3 and a second-stage gravity self-balancing water distribution pipe 2. The third-stage gravity self-balancing water distribution pipe 3 is located in a horizontal plane. The second-stage gravity self-balancing water distribution pipe 2 is connected to the third-stage gravity self-balancing water distribution pipe 3. An exhaust pipe 10 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 end of the third-stage gravity self-balancing water distribution pipe 3 and is connected to the third-stage gravity self-balancing water distribution pipe 3. 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.

[0065] The water distribution system of this application features an exhaust pipe 10 on the third-stage gravity self-balancing water distribution pipe 3. This effectively removes air bubbles from the system, preventing them from affecting water flow and causing uneven water distribution. The exhaust pipe 10 allows compressed air to escape, maintaining the normal operation of the system. Simultaneously, the exhaust pipe 10 connects to the outside air, creating a U-shaped pipe structure with 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. This ensures uniform water flow rate and pressure within the system, consistent water pressure at each branch pipe 8 and nozzle 9, and equal water volume sprayed from each nozzle 9, achieving uniform water distribution.

[0066] In some possible embodiments, the exhaust pipe 10 is located at the end of the third-stage gravity self-balancing water distribution pipe 3 along its length. This facilitates the discharge of air bubbles throughout the third-stage gravity self-balancing water distribution pipe 3. When the third-stage gravity self-balancing water distribution pipe 3 is not level, one end may be higher than the other. In this application, the exhaust pipe 10 is located at the end of the third-stage gravity self-balancing water distribution pipe 3, at the highest point. Air bubbles within the third-stage gravity self-balancing water distribution pipe 3 will naturally move to the end of the third-stage gravity self-balancing water distribution pipe 3 and eventually be discharged through the exhaust pipe 10.

[0067] In some possible implementations, such as Figure 1 As shown, the third-stage gravity self-balancing water distribution pipe 3 is equipped with exhaust pipes 10 at at least both ends. By providing exhaust pipes 10 at both ends of the third-stage gravity self-balancing water distribution pipe 3, it is more conducive to the discharge of air bubbles. The exhaust pipes 10 at both ends of the third-stage gravity self-balancing water distribution pipe 3 allow compressed air on both sides to be discharged through the exhaust pipes 10, thereby maintaining the normal operation of the water distribution system. Furthermore, regardless of the direction in which the third-stage gravity self-balancing water distribution pipe 3 is tilted, air bubbles will be discharged through the corresponding exhaust pipe 10.

[0068] In some possible implementations, the second-stage gravity self-balancing water distribution pipe 2 is located on top of the third-stage gravity self-balancing water distribution pipe 3, and the second-stage gravity self-balancing water distribution pipe 2 is parallel to the exhaust pipe 10.

[0069] The second-stage gravity self-balancing water distribution pipe 2 has an open top. 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, the water pressure to each branch pipe 8 and the spray nozzle 9 are also consistent, and the water volume sprayed by each spray nozzle 9 is equal, thus achieving the effect of uniform water distribution.

[0070] In some possible implementations, the extension length of the exhaust pipe 10 and the extension length of the second-stage gravity self-balancing water distribution pipe 2 are equal in the direction perpendicular to the horizontal plane.

[0071] The second-stage gravity self-balancing water distribution pipe 2, the third-stage gravity self-balancing water distribution pipe 3, and the vent pipe 10 form a U-shaped pipe structure. The water levels in the second-stage gravity self-balancing water distribution pipe 2 and the vent pipe 10 are the same. Therefore, the two should be kept as close to the same height as possible to avoid water overflowing from the vent pipe 10 when it is too low and the water level is too high.

[0072] In some possible implementations, the diameter of the vent pipe 10 is smaller than the diameter of the second-stage gravity self-balancing water distribution pipe 2. The size of the vent pipe 10 has little impact on the venting; therefore, in this embodiment, minimizing the diameter of the vent pipe 10 is beneficial for reducing the weight of the entire water distribution system.

[0073] In some possible implementations, the third-stage gravity self-balancing water distribution pipe 3 is closed at both ends along its length. Vent pipes 10 are installed at both ends of the third-stage gravity self-balancing water distribution pipe 3, thus the closed ends facilitate stable water pressure throughout the entire pipe, ensuring uniform water flow rate and pressure, consistent water pressure to each branch pipe 8 and nozzle 9, and equal water volume sprayed from each nozzle 9, achieving a uniform water distribution effect.

[0074] In some possible implementations, the gravity self-balancing uniform water distribution system includes multiple water distribution pipes 8, each of which is located within the third-stage gravity self-balancing water distribution pipe 3. The water distribution pipes 8 are arranged at intervals along the length of the third-stage gravity self-balancing water distribution pipe 3, and each water distribution pipe 8 is connected to a spray nozzle 9. The water distribution pipes 8 can be arranged symmetrically along the length of the third-stage gravity self-balancing water distribution pipe 3, ensuring consistent water pressure between the symmetrically arranged water distribution pipes 8 and the spray nozzles 9, and resulting in approximately equal water volume sprayed from each spray nozzle 9, thus achieving uniform water distribution.

[0075] In some possible implementations, at least two second-stage gravity self-balancing water distribution pipes 2 are connected to each third-stage gravity self-balancing water distribution pipe 3. Each second-stage gravity self-balancing water distribution pipe 2 is symmetrically arranged on the pipeline with the middle (middle of the length direction) of the third-stage gravity self-balancing water distribution pipe 3 as its center. The symmetrical arrangement of the second-stage gravity self-balancing water distribution pipes 2 on the third-stage gravity self-balancing water distribution pipe 3 ensures that the water supply paths of each branch pipe on the third-stage gravity self-balancing water distribution pipe 3 are approximately the same, and the water volume sprayed by each nozzle 9 on each branch pipe 8 is approximately equal, achieving a uniform water distribution effect.

[0076] Example 3

[0077] like Figure 1 and Figure 2As shown, this application embodiment, based on the above-described Embodiments 1 and 2, further details the water distribution system. The water distribution system includes: a first-stage gravity self-balancing water distribution pipe 1, a pressure relief and water-blocking 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, has an inlet at its bottom, and a pressure relief port 11 at its top. The pressure relief and water-blocking component 6 is disposed on the first-stage gravity self-balancing water distribution pipe 1 and covers its cross-section. The pressure relief and water-blocking component 6 has a vent hole 61. The second-stage gravity self-balancing water distribution pipe 2 is located around 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. The second-stage gravity self-balancing water distribution pipe 2 and the first-stage gravity self-balancing water distribution pipe 1 are connected.

[0078] The water distribution system of this application has a pressure relief port 11 at the top of the first-stage gravity self-balancing water distribution pipe 1, so that the water will automatically depressurize after entering the first-stage gravity self-balancing water distribution pipe 1, and under its own weight, it will flow evenly into multiple second-stage gravity self-balancing water distribution pipes 2 around it for double uniform water distribution. The first-stage gravity self-balancing water distribution pipe 1 is equipped with a pressure relief and water blocking component 6, which has a vent hole 61. It does not affect the water inlet pressure relief, and the compressed gas can be easily discharged. The pressure relief and water blocking component 6 also serves to block water, preventing the water from being discharged directly from the pressure relief port 11 at the top of the first-stage gravity self-balancing water distribution pipe 1.

[0079] In some possible embodiments, such as Figure 1 and Figure 2 As shown, the pressure relief and water-blocking component 6 is disposed within the cavity of the first-stage gravity self-balancing water distribution pipe 1. This does not occupy additional external space in the water distribution system, which is beneficial for the compact design of the system. Furthermore, by placing the pressure relief and water-blocking component 6 within the cavity of the first-stage gravity self-balancing water distribution pipe 1, and maintaining a certain gap from the pressure relief port 11, water can be blocked in advance, more effectively preventing water from being discharged from the top pressure relief port 11. Without considering space occupation, the pressure relief and water-blocking component 6 can also be at least partially exposed at the top of the first-stage gravity self-balancing water distribution pipe 1, covering the pressure relief port 11.

[0080] In some possible implementations, the pressure relief and water-blocking component 6 is detachably connected to the first-stage gravity self-balancing water distribution pipe 1. This allows for easy replacement of the pressure relief and water-blocking component 6. The pressure relief and water-blocking component 6 can be detachably connected to the first-stage gravity self-balancing water distribution pipe 1 via fasteners, or it can be detachably connected to the first-stage gravity self-balancing water distribution pipe 1 via a snap-fit ​​structure.

[0081] In some possible implementations, the pressure relief and water-blocking component 6 is fixedly connected to the first-stage gravity self-balancing water distribution pipe 1. The pressure relief and water-blocking component 6 can be fastened to the first-stage gravity self-balancing water distribution pipe 1 using fasteners. The pressure relief and water-blocking component 6 can also be fixed to the first-stage gravity self-balancing water distribution pipe 1 by welding or bonding.

[0082] In some possible implementations, the first-stage gravity self-balancing water distribution pipe 1 is a circular pipe, and the pressure relief and water-blocking component 6 is a disc-shaped object. The pressure relief and water-blocking component 6 is located on the inner wall of the first-stage gravity self-balancing water distribution pipe 1, and the thick end face of the peripheral side of the pressure relief and water-blocking component 6 is attached to the inner wall of the first-stage gravity self-balancing water distribution pipe 1. A large number of vent holes 61 are distributed on the pressure relief and water-blocking component 6, and the vent holes 61 penetrate the pressure relief and water-blocking component 6 along the thickness direction of the pressure relief and water-blocking component 6.

[0083] In some possible implementations, the open water distribution system for the cooling tower includes at least two of the aforementioned pressure relief and water-blocking components 6, each of which is sequentially arranged along the length of the first-stage gravity self-balancing water distribution pipe 1. The pressure relief and water-blocking components 6 can be spaced apart. By setting multiple pressure relief and water-blocking components 6, the water-blocking effect is further enhanced. After the high-speed water flow enters from the inlet at the bottom of the first-stage gravity self-balancing water distribution pipe 1 and reaches a certain height, it is blocked by multiple pressure relief and water-blocking components 6, thus reducing the inlet flow velocity and achieving rapid pressure relief. When the inlet water passes through one pressure relief and water-blocking component 6, it will also be blocked by the pressure relief and water-blocking component 6 of the previous stage. Through the water-blocking effect of multiple stages of pressure relief and water-blocking components 6, a rapid pressure relief effect can be achieved.

[0084] In some possible implementations, in the open water distribution system for the cooling tower, at least some of the vent holes 61 on two adjacent pressure relief and water-blocking components 6 are staggered along the length of the first-stage gravity self-balancing water distribution pipe 1. This staggered arrangement of the vent holes 61 on adjacent pressure relief and water-blocking components 6 can prevent some water from smoothly passing through the vent holes 61 on the two pressure relief and water-blocking components 6 sequentially along the longitudinal direction, thus avoiding poor pressure relief effect of the pressure relief and water-blocking components 6.

[0085] In some possible implementations, the pressure relief and water-blocking component 6 is welded to the inner wall of the first-stage gravity self-balancing water distribution pipe 1 along its periphery.

[0086] The inner wall of the first-stage gravity self-balancing water distribution pipe 1 may be provided with a positioning support, on which the pressure relief and water-blocking component 6 is supported. The support serves as a limiting support, assisting in the rapid assembly of the pressure relief and water-blocking component 6. For example, during the assembly of the pressure relief and water-blocking component 6, the pressure relief and water-blocking component 6 is first placed inside the first-stage gravity self-balancing water distribution pipe 1 and horizontally supported on the positioning support, and then welding or fastener assembly is performed to fix the pressure relief and water-blocking component 6 to the first-stage gravity self-balancing water distribution pipe 1. It should be noted that the positioning support can be an internally projecting rib formed by the inner wall of the first-stage gravity self-balancing water distribution pipe 1.

[0087] In some possible implementations, the second-stage gravity self-balancing water distribution pipe 2 is connected to the first-stage gravity self-balancing water distribution pipe 1 via a connecting pipe 4, and the pressure relief and water blocking component 6 is located between the connecting pipe 4 and the pressure relief port 11 in the height direction.

[0088] The pressure relief and water-blocking component 6 is positioned higher than each connecting pipe 4, which reduces the impact on the diversion of water in the first-stage gravity self-balancing water distribution pipe 1 to the second-stage gravity self-balancing water distribution pipe 2. This is beneficial for the uniform distribution of water in the water distribution system.

[0089] Example 4

[0090] Embodiment 4 of this application provides a cooling tower, including the water distribution system described in the above embodiment. Specifically, the water-cooled tower may include a tower body, packing material, and the aforementioned water distribution system. The packing material is disposed on the tower body, and the water distribution system is disposed on the tower body and located at the top of the packing material. The water distribution system sprays water onto the packing material, increasing the contact area and time between the water and air, thereby reducing the water temperature through heat exchange between the water and air.

[0091] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0092] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0093] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A gravity-based self-balancing uniform water distribution system, characterized in that, include: The first-stage gravity self-balancing water distribution pipe extends longitudinally, has a water inlet at the bottom, and a pressure relief port at the top. Multiple second-stage gravity self-balancing water distribution pipes extend longitudinally, each second-stage gravity self-balancing water distribution pipe is located around the first-stage gravity self-balancing water distribution pipe, each second-stage gravity self-balancing water distribution pipe is connected to the first-stage gravity self-balancing water distribution pipe through a connecting pipe, and each second-stage gravity self-balancing water distribution pipe has an open top. A plurality of third-stage gravity self-balancing water distribution pipes, each of the third-stage gravity self-balancing water distribution pipes being located at the bottom of a corresponding second-stage gravity self-balancing water distribution pipe and connected to the corresponding second-stage gravity self-balancing water distribution pipe, wherein exhaust pipes are provided at both ends of the third-stage gravity self-balancing water distribution pipes, and the extension length of the exhaust pipes is equal to the extension length of the second-stage gravity self-balancing water distribution pipes in the direction along the vertical horizontal plane; At least two pressure relief and water blocking components are provided, which are disposed on the first-stage gravity self-balancing water distribution pipe and cover the cross-section of the first-stage gravity self-balancing water distribution pipe. Each pressure relief and water blocking component has a vent hole. Each pressure relief and water blocking component is arranged sequentially along the length of the first-stage gravity self-balancing water distribution pipe. At least some of the vent holes on two adjacent pressure relief and water blocking components are staggered. In the height direction, the pressure relief and water blocking components are located between the connecting pipe and the pressure relief port. The liquid flows sequentially through the first-stage gravity self-balancing water distribution pipe, the second-stage gravity self-balancing water distribution pipe, and the third-stage gravity self-balancing water distribution pipe.

2. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, The diameter of the connecting pipe is smaller than that of the second-stage gravity self-balancing water distribution pipe and the first-stage gravity self-balancing water distribution pipe. Each of the connecting pipes is arranged sequentially at intervals along the circumference of the first-stage gravity self-balancing water distribution pipe, and each of the connecting pipes is located in the same plane. One end of each connecting pipe is connected to the first-stage gravity self-balancing water distribution pipe, and the other end of each connecting pipe is connected to the corresponding second-stage gravity self-balancing water distribution pipe.

3. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, Along the circumference of the first-stage gravity self-balancing water distribution pipe, at least two adjacent second-stage gravity self-balancing water distribution pipes are connected by a connecting pipe. The connecting pipe connects the two ends of the second-stage gravity self-balancing water distribution pipe, and the connecting pipe is located between the connecting pipe and the third-stage gravity self-balancing water distribution pipe.

4. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, Including the main water inlet pipe; The outer diameter of the main inlet pipe is smaller than the outer diameter of the first-stage gravity self-balancing water distribution pipe. The main inlet pipe is located at the bottom of the first-stage gravity self-balancing water distribution pipe, and the main inlet pipe is connected to the inlet at the bottom of the first-stage gravity self-balancing water distribution pipe.

5. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, Each of the aforementioned third-stage gravity self-balancing water distribution pipes is located in the same plane, and each of the aforementioned third-stage gravity self-balancing water distribution pipes has the same size and shape; Each third-stage gravity self-balancing water distribution pipe is connected to the same number of second-stage gravity self-balancing water distribution pipes, and each second-stage gravity self-balancing water distribution pipe is symmetrically arranged on the third-stage gravity self-balancing water distribution pipe.

6. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, It includes multiple water distribution pipes, each of which is installed in the third-stage gravity self-balancing water distribution pipe. Each of the water distribution pipes is arranged at intervals along the length of the third-stage gravity self-balancing water distribution pipe, and each water distribution pipe is connected to a spray nozzle. Each of the aforementioned water distribution pipes is symmetrically arranged in the third-stage gravity self-balancing water distribution pipe with the middle part of the third-stage gravity self-balancing water distribution pipe as the center.

7. The gravity-based self-balancing uniform water distribution system according to any one of claims 1-6, characterized in that, It includes multiple water distribution sub-units, and each water distribution sub-unit is arranged in multiple rows and columns on a horizontal plane; Each of the water distribution subunits includes a first-stage gravity self-balancing water distribution pipe, a second-stage gravity self-balancing water distribution pipe, and a third-stage gravity self-balancing water distribution pipe.

8. A cooling tower, characterized in that, Including the gravity self-balancing uniform water distribution system as described in any one of claims 1-7.

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