Gravity self-balancing uniform water distribution system and cooling tower

Abstract

The embodiment of the utility model provides a gravity self-balancing uniform water distribution system which comprises a first-stage gravity self-balancing water distribution pipeline, a second-stage gravity self-balancing water distribution pipeline and a third-stage gravity self-balancing water distribution pipeline. All the second-stage gravity self-balancing water distribution pipelines are communicated with the first-stage gravity self-balancing water distribution pipelines, and all the third-stage gravity self-balancing water distribution pipelines are connected to the second-stage gravity self-balancing water distribution pipelines. Circulating water of the cooling tower can be automatically decompressed after entering the first-stage gravity self-balancing water distribution pipeline, and uniformly flows into the second-stage gravity self-balancing water distribution pipelines on the peripheral side under the self-weight effect of the water to be subjected to double uniform water distribution, and the water levels of the second-stage gravity self-balancing water distribution pipelines are consistent in height, so that uniform water distribution is realized. Inlet water flows to the third-stage gravity self-balancing water distribution pipeline again, the pressure of each water spray nozzle directly or indirectly connected with the third-stage gravity self-balancing water distribution pipeline is roughly consistent, and the water outlet amount and the spraying area of each water spray nozzle are roughly the same, so that uniform water distribution is realized, the water distribution is not influenced by the water pressure of the inlet water, and the water distribution efficiency is improved. And the cooling efficiency of the cooling tower is obviously improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling towers, in particular to a gravity self-balancing uniform water distribution system and a cooling tower. BACKGROUND

[0002] The water distribution system is an important component of the counterflow cooling tower, and the water distribution effect directly affects the operation efficiency of the cooling tower. In the related art, the water distribution system is composed of an inlet pipe, a nozzle, a straight pipe, an umbrella-shaped disc and a tooth-shaped bottom disc. The straight pipe is arranged in the horizontal plane at the top of the filler. The inlet pipe is directly connected to the straight pipe, and the nozzle is arranged on the straight pipe. Water enters the straight pipe through the inlet pipe and is sprayed out of the nozzle on the straight pipe, directly onto the tooth-shaped bottom disc, then reflected to the umbrella-shaped disc, and finally splashed to the surrounding area and falls onto the filler. This water distribution system has certain requirements for water pressure and water volume. Along the extension path of the straight pipe, the water pressure changes step by step. Only when the water volume and water pressure are moderate, the designed uniform water distribution effect can be achieved. When the flow rate decreases or the water pressure decreases, the water distribution system is prone to uneven water distribution, which reduces the cooling efficiency of the cooling tower. CONTENT OF THE UTILITY MODEL

[0003] To solve one of the above technical defects, the gravity self-balancing uniform water distribution system and the cooling tower are provided in the embodiments of the present application to solve the problem that water pressure changes easily lead to uneven water distribution and low cooling efficiency in the prior art.

[0004] The utility model discloses the following technical scheme:

[0005] A gravity self-balancing uniform water distribution system comprises:

[0006] A first-stage gravity self-balancing water distribution pipeline, which extends in the longitudinal direction, has an inlet at the bottom and a pressure relief port at the top;

[0007] A plurality of second-stage gravity self-balancing water distribution pipelines, each of which is located at the lateral side of the first-stage gravity self-balancing water distribution pipeline and is connected to the first-stage gravity self-balancing water distribution pipeline, and each of which has an open top;

[0008] A plurality of third-stage gravity self-balancing water distribution pipelines, each of which is located at the bottom of the corresponding second-stage gravity self-balancing water distribution pipeline and is connected to the corresponding second-stage gravity self-balancing water distribution pipeline;

[0009] The liquid flows through the first, second and third gravity self-balancing water distribution pipes in sequence.

[0010] Optionally, the gravity self-balancing uniform water distribution system comprises a plurality of communication pipes, the communication pipes having a pipe diameter smaller than the second and first gravity self-balancing water distribution pipes.

[0011] The communication pipes are arranged in sequence along the circumference of the first gravity self-balancing water distribution pipe and are located in the same plane, one end of each communication pipe is connected to the first gravity self-balancing water distribution pipe, and the other end of each communication pipe is connected to a corresponding second gravity self-balancing water distribution pipe.

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

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

[0014] Optionally, the gravity self-balancing uniform water distribution system comprises a pressure relief water retaining component arranged on the first gravity self-balancing water distribution pipe and covering the cross section of the first gravity self-balancing water distribution pipe, the pressure relief water retaining component having air permeable holes.

[0015] Optionally, the gravity self-balancing uniform water distribution system comprises a water inlet main pipe.

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

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

[0018] Optionally, the third gravity self-balancing water distribution pipes are located in the same plane and have the same size and shape.

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

[0020] Optionally, the gravity self-balancing uniform water distribution system comprises a plurality of branch pipes, each of the branch pipes is arranged on the third gravity self-balancing water distribution pipeline, and each of the branch pipes is arranged in sequence and at intervals along the length direction of the third gravity self-balancing water distribution pipeline, and a water nozzle is connected to each of the branch pipes.

[0021] Each of the branch pipes is symmetrically arranged on the third gravity self-balancing water distribution pipeline with the middle part of the third gravity self-balancing water distribution pipeline as the center.

[0022] Optionally, the gravity self-balancing uniform water distribution system comprises an exhaust pipe, and the exhaust pipe is connected to the end of the third gravity self-balancing water distribution pipeline.

[0023] Optionally, the gravity self-balancing uniform water distribution system comprises a plurality of water distribution subunits, and each of the water distribution subunits is arranged in multiple rows and multiple columns on a horizontal plane.

[0024] Each of the water distribution subunits comprises the first, second and third gravity self-balancing water distribution pipelines.

[0025] The second object of the present application is to provide a cooling tower comprising the gravity self-balancing uniform water distribution system.

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

[0027] The gravity self-balancing uniform water distribution system comprises the first, second and third gravity self-balancing water distribution pipelines. Each of the second gravity self-balancing water distribution pipelines is connected to the first gravity self-balancing water distribution pipeline, and each of the third gravity self-balancing water distribution pipelines is connected to the second gravity self-balancing water distribution pipeline. The circulating water of the cooling tower is automatically depressurized after entering the first gravity self-balancing water distribution pipeline, and is uniformly distributed to each of the second gravity self-balancing water distribution pipelines under the action of the self-weight of the water to realize secondary uniform water distribution. The water level of each of the second gravity self-balancing water distribution pipelines is consistent, and the water inlet flows to the third gravity self-balancing water distribution pipeline again. The pressure at each of the water nozzles directly or indirectly connected to the third gravity self-balancing water distribution pipeline is substantially consistent, and the water outlet of each of the water nozzles and the spraying area are substantially the same, so that the uniform water distribution is realized, the water pressure has no influence on the water distribution, and the cooling efficiency of the cooling tower is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and are used to explain the present application, but do not limit the present application. In the drawings:

[0029] Figure 1A perspective view of the water distribution system according to an embodiment of the present application is shown.

[0030] Figure 2 A perspective view of the water distribution system according to an embodiment of the present application is shown. Figure 1 An enlarged view of part A is shown.

[0031] Figure 3 An enlarged view of part B is shown. Figure 1 An enlarged view of part B is shown.

[0032] Figure 4 A perspective view of the water distribution system according to an embodiment of the present application is shown.

[0033] Figure 5 A side view of the water distribution system according to an embodiment of the present application is shown.

[0034] Figure 6 A top view of the water distribution system according to an embodiment of the present application is shown.

[0035] In the figure: 100, water distribution subunit; 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; 3, third-stage gravity self-balancing water distribution pipeline; 4, communication pipe; 5, connecting pipe; 6, pressure relief water retaining component; 61, air vent hole; 7, water inlet main pipe; 8, water distribution pipe; 9, water spray nozzle; 10, exhaust pipe. DETAILED DESCRIPTION

[0036] In order to make the technical solutions and advantages of the embodiments of the present application clearer, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than 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.

[0037] In the description of the present application and its embodiments, it should be understood that the terms "top", "bottom", "height" and the like 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 the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present 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 first-stage gravity self-balancing water distribution pipeline 1 of the water distribution system of the present application is provided with a pressure relief port 11 at the top, so that the circulating water of the cooling tower will automatically relieve pressure after entering the first-stage gravity self-balancing water distribution pipeline 1, and flow into the multiple second-stage gravity self-balancing water distribution pipelines 2 at the periphery under the action 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 2 is consistent through the atmospheric pressure of the open system and the adjustment of the bottom communication pipe 4, and the water inlet will flow to the third-stage gravity self-balancing water distribution pipeline 3 again. The pressure at each water nozzle 9 directly or indirectly connected to the third-stage gravity self-balancing water distribution pipeline 3 is roughly consistent, and the water discharge amount and the spraying area of each water nozzle 9 are roughly the same, so that uniform water distribution is realized, which is not affected by the water inlet pressure, and the cooling efficiency of the cooling tower is significantly improved.

[0043] After the first-stage gravity self-balancing water distribution pipeline 1 unloads the water inlet pressure, the water itself height water level difference is utilized to uniformly flow into the second-stage gravity self-balancing water distribution pipelines 2 installed on the four corners through the communication pipe 4. The first-stage gravity self-balancing water distribution pipeline 1 is a water storage pipe, and the central water storage pipe with a reasonable height and diameter can be designed according to the water inlet flow of the cooling tower.

[0044] It should be noted that in the embodiments of the present application, the gravity self-balancing uniform water distribution system is not limited to only three-stage gravity self-balancing water distribution pipelines, and more stages of gravity self-balancing water distribution pipelines can be arranged according to the actual situation. For example, a fourth-stage gravity self-balancing water distribution pipeline, a fifth-stage gravity self-balancing water distribution pipeline, and the like can be continuously arranged downstream of the third-stage gravity self-balancing water distribution pipeline 3.

[0045] In some possible embodiments, the gravity self-balancing uniform water distribution system includes multiple communication pipes 4, the pipe diameter of the communication pipes 4 is smaller than that of the second-stage gravity self-balancing water distribution pipelines 2 and the first-stage gravity self-balancing water distribution pipeline 1, each communication pipe 4 is sequentially and spacedly arranged along the circumference of the first-stage gravity self-balancing water distribution pipeline 1, each communication pipe 4 is located in the same plane, one end of each communication pipe 4 is connected to the first-stage gravity self-balancing water distribution pipeline 1, and the other end of each communication pipe 4 is respectively connected to a corresponding second-stage gravity self-balancing water distribution pipeline 2.

[0046] Since the gravity self-balancing uniform water distribution system is an open structure, each second-stage gravity self-balancing water distribution pipeline 2 is communicated with the first-stage gravity self-balancing water distribution pipeline 1 through the communication pipe 4, so the water level height of each second-stage gravity self-balancing water distribution pipeline 2 is definitely consistent, and the water amount pressed to each third-stage gravity self-balancing water distribution pipeline 3 is also the same size.

[0047] The outer diameter of the communication pipe 4 is much smaller than that of the first-stage gravity self-balancing water distribution pipeline 1, so that multiple communication pipes 4 can be connected to the same height section of the first-stage gravity self-balancing water distribution pipeline 1. The first-stage gravity self-balancing water distribution pipeline 1 is provided with multiple openings at intervals in the circumferential direction, each opening is located at the same height, and multiple communication pipes 4 are arranged at intervals in the circumferential direction of the first-stage gravity self-balancing water distribution pipeline 1 and are respectively connected to corresponding openings. Each communication pipe 4 is located in the same horizontal plane. Each second-stage gravity self-balancing water distribution pipeline 2 is arranged parallel to the first-stage gravity self-balancing water distribution pipeline 1. The outer diameter of the second-stage gravity self-balancing water distribution pipeline 2 is not greater than that of the first-stage gravity self-balancing water distribution pipeline 1. The number of second-stage gravity self-balancing water distribution pipelines 2 can be two, three, four or more.

[0048] The communication 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, respectively. Each communication pipe 4 can be formed by splicing several cylindrical pipes. Adjacent cylindrical pipes can be fixed by a clamp.

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

[0050] The arrangement of the connecting pipe 5 increases the overall structural strength of each second-stage gravity self-balancing water distribution pipeline 2, so that the water distribution system has good integrity, the overall structure is not easy to deform, and the service life is prolonged. The connecting pipe 5 can be a hollow pipe, which can connect two adjacent second-stage gravity self-balancing water distribution pipelines 2, so that a U-shaped pipe structure is formed between each two second-stage gravity self-balancing water distribution pipelines 2, ensuring that the water flow rate and water pressure in the water distribution system are uniform, the water pressure for supplying water to each third-stage gravity self-balancing water distribution pipeline 3 is consistent, the water amount distributed to each third-stage gravity self-balancing water distribution pipeline 3 is equal, and the effect of uniform water distribution is achieved.

[0051] In some possible embodiments, in combination with Figure 1 and Figure 2 The gravity self-balancing uniform water distribution system includes a pressure relief water blocking component 6 arranged on the first-stage gravity self-balancing water distribution pipeline 1 and covering the cross section of the first-stage gravity self-balancing water distribution pipeline 1. The pressure relief water blocking component 6 has a gas permeable hole 61.

[0052] The first-stage gravity self-balancing water distribution pipeline 1 of the water distribution system of the present application is provided with a pressure relief port 11 at the top, so that the water will automatically relieve pressure after entering the first-stage gravity self-balancing water distribution pipeline 1 and flow uniformly into the multiple second-stage gravity self-balancing water distribution pipelines 2 on the periphery under the action of gravity for double uniform water distribution. The first-stage gravity self-balancing water distribution pipeline 1 is provided with a pressure relief water retaining component 6, which does not affect the water inlet pressure relief and also serves the purpose of water retention to prevent the water from being directly discharged from the pressure relief port 11 of the first-stage gravity self-balancing water distribution pipeline 1.

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

[0054] The water inlet main pipe 7 can be provided with a water pump at the bottom for pumping water to flow from bottom to top into the first-stage gravity self-balancing water distribution pipeline 1. The first-stage gravity self-balancing water distribution pipeline 1 is used for pressure relief of the water inlet and needs to be divided into multiple second-stage gravity self-balancing water distribution pipelines 2, so the first-stage gravity self-balancing water distribution pipeline 1 is a water storage cylinder with a large diameter to meet the requirements of water storage and water distribution.

[0055] In some possible embodiments, the third-stage gravity self-balancing water distribution pipelines 3 are located in the same plane and have the same size and shape, each third-stage gravity self-balancing water distribution pipeline 3 is connected to the same number of second-stage gravity self-balancing water distribution pipelines 2, and each second-stage gravity self-balancing water distribution pipeline 2 is symmetrically arranged in the third-stage gravity self-balancing water distribution pipeline.

[0056] In this embodiment, the third-stage gravity self-balancing water distribution pipelines 3 have the same size and shape or are symmetrical, so that the water supply paths of the third-stage gravity self-balancing water distribution pipelines 3 are substantially the same in the path from the first-stage gravity self-balancing water distribution pipeline 1, the second-stage gravity self-balancing water distribution pipeline 2 to the third-stage gravity self-balancing water distribution pipeline 3. Therefore, the water pressure in each third-stage gravity self-balancing water distribution pipeline 3 is basically the same, and each third-stage gravity self-balancing water distribution pipeline 3 can balance the water discharge, thereby achieving uniform water distribution and being not affected by the water inlet pressure, which significantly improves the cooling efficiency of the cooling tower.

[0057] In some possible embodiments, in combination with Figure 1 and Figure 4As 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-stage gravity self-balancing water distribution pipeline 3, and each of which is arranged in the third-stage gravity self-balancing water distribution pipeline 3 in sequence and at intervals along the length direction of the third-stage gravity self-balancing water distribution pipeline 3. The water distribution pipes 8 are connected with water spray nozzles 9, and each of the water distribution pipes 8 is symmetrically arranged in the third-stage gravity self-balancing water distribution pipeline 3 with the middle part (the midpoint along the length direction) of the third-stage gravity self-balancing water distribution pipeline 3 as the center. Each of the water distribution pipes 8 can be arranged in the length direction of the third-stage gravity self-balancing water distribution pipeline 3, and the number and position of the water spray nozzles 9 arranged on each of the water distribution pipes 8 are equal, so that the water pressure of each of the symmetrically arranged water distribution pipes 8 and water spray nozzles 9 is substantially uniform, and the water quantity sprayed by each of the water spray nozzles 9 is substantially equal, thereby achieving the effect of uniform water distribution.

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

[0059] The water distribution system of the present application is provided with the exhaust pipe 10 on the third-stage gravity self-balancing water distribution pipeline 3, which can effectively exhaust the air bubbles in the water distribution system. At the same time, the exhaust pipe 10 is in communication with the outside air, so that 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, thereby ensuring that the water flow rate and water pressure in the water distribution system are uniform, and the water pressure of each of the water distribution pipes 8 and water spray nozzles 9 is also uniform, and the water quantity sprayed by each of the water spray nozzles 9 is equal, thereby achieving the effect of uniform water distribution.

[0060] The two ends of the third-stage gravity self-balancing water distribution pipeline 3 are provided with exhaust pipes 10, which can smoothly exhaust the air bubbles in the third-stage gravity self-balancing water distribution pipeline 3 from the system. At the same time, the exhaust pipes 10 are in communication with the outside air, so that the entire system forms a U-shaped pipe structure, thereby ensuring that the water flow rate and water pressure in the third-stage gravity self-balancing water distribution pipeline 3 are uniform, and the pressure of each of the water distribution pipes and water spray nozzles is also uniform, and the water quantity sprayed by each of the water spray nozzles is also equal, thereby achieving the effect of uniform water distribution. When the water quantity is large, the water level in the first-stage gravity self-balancing water distribution pipeline is high, and the water quantity discharged by the water spray nozzles is large. By utilizing the gravity of the water itself, the water spray quantity discharged by the water spray nozzles is automatically adjusted, thereby achieving the effect that when the flow rate changes, the water can also be uniformly sprayed on the filler surface.

[0061] It should be noted that in the embodiments of the present application, all the pipes can be made of engineering steel pipes as raw materials, which have the effects of acid resistance and alkali resistance. They do not deform or age after long-term work under high-temperature (such as 95℃) working conditions, are firm and durable, and have a long service life.

[0062] In some possible embodiments, the gravity self-balancing uniform water distribution system is combined with Figure 5 andFigure 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 level gravity self-balancing water distribution pipe 3 along the length direction. Thus, it is beneficial to exhaust the air bubbles in the entire third level gravity self-balancing water distribution pipe 3. When the third level gravity self-balancing water distribution pipe 3 is arranged unevenly, 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 level gravity self-balancing water distribution pipe 3, at the highest point. The air bubbles in the third level gravity self-balancing water distribution pipe 3 will naturally move to the end of the third level gravity self-balancing water distribution pipe 3 and finally be exhausted by the exhaust pipe 10.

[0067] In some possible embodiments, as shown in Figure 1 The exhaust pipe 10 is arranged at the end of the third level gravity self-balancing water distribution pipe 3, at the highest point. The air bubbles in the third level gravity self-balancing water distribution pipe 3 will naturally move to the end of the third level gravity self-balancing water distribution pipe 3 and finally be exhausted by the exhaust pipe 10.

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

[0069] The second level gravity self-balancing water distribution pipe 2 has an open top. The second level gravity self-balancing water distribution pipe 2, the third level gravity self-balancing water distribution pipe 3, and the exhaust pipe 10 form a U-shaped pipe structure, ensuring that the water flow rate, 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. Each water nozzle 9 sprays an equal amount of water, achieving the effect of uniform water distribution.

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

[0071] The second level gravity self-balancing water distribution pipe 2, the third level gravity self-balancing water distribution pipe 3, and the exhaust pipe 10 form a U-shaped pipe structure. The water level in the second level gravity self-balancing water distribution pipe 2 and the exhaust pipe 10 is consistent. Therefore, the heights of the two are as high as possible to avoid the exhaust pipe 10 being too low and the water level being too high, causing water to overflow from the exhaust pipe 10.

[0072] In some possible embodiments, the pipe diameter of the exhaust pipe 10 is smaller than the pipe diameter of the second-stage gravity self-balancing water distribution pipe 2. The pipe diameter of the exhaust pipe 10 has little effect on the exhaust, and therefore, in the embodiments of the present application, the pipe diameter of the exhaust pipe 10 is reduced as much as possible, which is conducive to reducing the weight of the entire water distribution system.

[0073] In some possible embodiments, the third-stage gravity self-balancing water distribution pipe 3 is closed at both ends in the length direction. The third-stage gravity self-balancing water distribution pipe 3 is provided with an exhaust pipe 10 at both ends, and therefore, the ends are closed, which is conducive to stabilizing the water pressure in the entire third-stage gravity self-balancing water distribution pipe 3, ensuring that the water flow rate and water pressure in the third-stage gravity self-balancing water distribution pipe 3 are uniform, the water pressure of each branch pipe 8 and water nozzle 9 is consistent, the water amount sprayed by each water nozzle 9 is equal, and the effect of uniform water distribution is achieved.

[0074] In some possible embodiments, the gravity self-balancing uniform water distribution system comprises a plurality of branch pipes 8, each of which is arranged on the third-stage gravity self-balancing water distribution pipe 3, and each of which is arranged in the length direction of the third-stage gravity self-balancing water distribution pipe 3 in sequence and at intervals, and each of which is connected with a water nozzle 9. Among them, each branch pipe 8 can be arranged in the length direction of the third-stage gravity self-balancing water distribution pipe 3, so that the water pressure of each branch pipe 8 and water nozzle 9 arranged symmetrically is consistent, the water amount sprayed by each water nozzle 9 is approximately equal, and the effect of uniform water distribution is achieved.

[0075] In some possible embodiments, each third-stage gravity self-balancing water distribution pipe 3 is connected with at least two 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 3 with the middle part (the middle part in the length direction) of the third-stage gravity self-balancing water distribution pipe 3 as the center. Each second-stage gravity self-balancing water distribution pipe 2 is symmetrically arranged on the third-stage gravity self-balancing water distribution pipe 3, so that the water supply paths of each branch pipe on the third-stage gravity self-balancing water distribution pipe 3 are approximately the same, the water supply paths of each branch pipe are basically consistent, the water amount sprayed by each water nozzle 9 on each branch pipe 8 is approximately equal, and the effect of uniform water distribution is achieved.

[0076] Embodiment Three

[0077] As Figure 1 and Figure 2As shown, the embodiment of the present application further details the water distribution system based on the above-mentioned embodiment one and embodiment two, which comprises: a first self-balancing gravity water distribution pipeline 1, a pressure relief water retaining component 6 and a second self-balancing gravity water distribution pipeline 2. The first self-balancing gravity water distribution pipeline 1 extends along the longitudinal direction, the bottom of the first self-balancing gravity water distribution pipeline 1 is provided with a water inlet, and the top of the first self-balancing gravity water distribution pipeline 1 is provided with a pressure relief port 11. The pressure relief water retaining component 6 is arranged on the first self-balancing gravity water distribution pipeline 1 and covers the cross section of the first self-balancing gravity water distribution pipeline 1. The pressure relief water retaining component 6 is provided with a gas permeable hole 61. The second self-balancing gravity water distribution pipeline 2 is located on the side of the first self-balancing gravity water distribution pipeline 1 and is connected to the outer wall of the first self-balancing gravity water distribution pipeline 1. The second self-balancing gravity water distribution pipeline 2 is in communication with the first self-balancing gravity water distribution pipeline 1.

[0078] The first self-balancing gravity water distribution pipeline 1 of the water distribution system of the present application is provided with a pressure relief port 11 at the top, so that the water will automatically relieve pressure after entering the first self-balancing gravity water distribution pipeline 1, and will flow uniformly to the multiple second self-balancing gravity water distribution pipelines 2 on the side under the action of gravity for double uniform water distribution. The pressure relief water retaining component 6 is arranged on the first self-balancing gravity water distribution pipeline 1, and the pressure relief water retaining component 6 is provided with a gas permeable hole 61, which does not affect the water inlet pressure relief, and the compressed gas can be easily discharged. The pressure relief water retaining component 6 also serves the purpose of water retention, avoiding the direct discharge of water from the pressure relief port 11 at the top of the first self-balancing gravity water distribution pipeline 1.

[0079] In some possible embodiments, as shown in Figure 1 and Figure 2 The pressure relief water retaining component 6 is arranged in the lumen of the first self-balancing gravity water distribution pipeline 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 lumen of the first self-balancing gravity water distribution pipeline 1 and having a certain gap from the pressure relief port 11, the water can be retained in advance, and the discharge of water from the top pressure relief port 11 is more effectively avoided. Without considering the occupied space, the pressure relief water retaining component 6 can also be at least partially exposed on the top of the first self-balancing gravity water distribution pipeline 1 and cover the pressure relief port 11.

[0080] In some possible embodiments, the pressure relief water retaining component 6 is detachably connected to the first self-balancing gravity water distribution pipeline 1. Thus, the pressure relief water retaining component 6 can be conveniently replaced. The pressure relief water retaining component 6 can be detachably connected to the first self-balancing gravity water distribution pipeline 1 by a fastener, or the pressure relief water retaining component 6 can be detachably connected to the first self-balancing gravity water distribution pipeline 1 by a clamping structure.

[0081] In some possible embodiments, the pressure relief water retaining component 6 is fixedly connected to the first-stage gravity self-balancing water distribution pipe 1. The pressure relief water retaining component 6 can be fastened to the first-stage gravity self-balancing water distribution pipe 1 by fasteners. The pressure relief water retaining component 6 can be fixed to the first-stage gravity self-balancing water distribution pipe 1 by welding or adhesion, etc.

[0082] In some possible embodiments, the first-stage gravity self-balancing water distribution pipe 1 is a circular tube, the pressure relief water retaining component 6 is a circular disc, the pressure relief water retaining component 6 is located on the inner wall of the first-stage gravity self-balancing water distribution pipe 1, and the thickness end face 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 pipe 1. A large number of air permeable holes 61 are distributed on the pressure relief water retaining component 6, and the air permeable holes 61 penetrate through the pressure relief water retaining component 6 along the thickness direction of the pressure relief water retaining component 6.

[0083] In some possible embodiments, the open water distribution system for a cooling tower includes at least two pressure relief water retaining components 6, and each pressure relief water retaining component 6 is sequentially arranged along the length direction of the first-stage gravity self-balancing water distribution pipe 1. Each pressure relief water retaining component 6 can be arranged at intervals. By arranging multiple pressure relief water retaining components 6, the water retaining effect is further increased. After the high-speed water flow enters from the water inlet at the bottom of the first-stage gravity self-balancing water distribution pipe 1 to a certain height, the water flow is blocked by multiple pressure relief water retaining components 6, so that the water inlet flow rate is reduced, and the purpose of rapid pressure relief is achieved. When the water flow passes through a pressure relief water retaining component 6, it is also blocked by the pressure relief water retaining component 6 of the upper stage. Through the water retaining effect of multiple pressure relief water retaining components 6, the effect of rapid pressure relief can be achieved.

[0084] In some possible embodiments, the open water distribution system for a cooling tower is arranged such that the air permeable holes 61 on two adjacent pressure relief water retaining components 6 are at least partially misaligned along the length direction of the first-stage gravity self-balancing water distribution pipe 1. The misalignment of the air permeable holes 61 on adjacent pressure relief water retaining components 6 can avoid the water flowing along the longitudinal direction through the air permeable holes 61 on the two pressure relief water retaining components 6 in turn, thereby causing poor pressure relief effect of the pressure relief water retaining component 6.

[0085] In some possible embodiments, the circumferential side edge of the pressure relief water retaining component 6 is welded to the inner wall of the first-stage gravity self-balancing water distribution pipe 1.

[0086] The inner wall of the first-stage gravity self-balancing water distribution pipeline 1 can be provided with a positioning support part, and the pressure relief water retaining part 6 is supported on the positioning support part. The support part plays a limiting support role, and assists in the rapid assembly of the pressure relief water retaining part 6. For example, during the assembly of the pressure relief water retaining part 6, the pressure relief water retaining part 6 is first placed inside the first-stage gravity self-balancing water distribution pipeline 1 and is horizontally supported on the positioning support part, and then welding or fastener assembly work is performed to fix the pressure relief water retaining part 6 to the first-stage gravity self-balancing water distribution pipeline 1. It should be noted that the positioning support part can be an inner protruding rib formed by the inner wall of the first-stage gravity self-balancing water distribution pipeline 1.

[0087] In some possible embodiments, the second-stage gravity self-balancing water distribution pipeline 2 is connected to the first-stage gravity self-balancing water distribution pipeline 1 through the communication pipe 4, and the pressure relief water retaining part 6 is located between the communication pipe 4 and the pressure relief port 11 in the height direction.

[0088] The pressure relief water retaining part 6 is located higher than each communication pipe 4, which can reduce the influence on the water in the first-stage gravity self-balancing water distribution pipeline 1 to the water distribution to the second-stage gravity self-balancing water distribution pipeline 2. This is conducive to uniform water distribution of the water distribution system.

[0089] Embodiment Four

[0090] Embodiment Four of the present application provides a cooling tower, which includes the water distribution system of the above-mentioned embodiments. Specifically, the water cooling tower can include a tower body, a filler, and the above-mentioned water distribution system. The filler is arranged on the tower body, and the water distribution system is arranged on the tower body and located at the top of the filler. The water distribution system sprays water onto the filler, increases the contact area and time of water and air, and reduces the water temperature through heat exchange between water and air.

[0091] The above disclosure provides many different implementations or examples for implementing the different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described in the above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, reference numerals and / or reference letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate a relationship between the various implementations and / or arrangements being discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0092] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they understand the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0093] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

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 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. 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. 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, It 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; 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 2, 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, The device 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.

5. 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.

6. 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.

7. 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.

8. The gravity-based self-balancing uniform water distribution system according to claim 1, characterized in that, It includes an exhaust pipe, which is connected to the end of the third-stage gravity self-balancing water distribution pipe.

9. The gravity-based self-balancing uniform water distribution system according to any one of claims 1-8, 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.

10. A cooling tower, characterized in that, Including the gravity self-balancing uniform water distribution system as described in any one of claims 1-9.

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