Symmetrical pipeline equivalent water inlet system of cooling tower

Abstract

The invention discloses a symmetric pipeline equivalent water inlet system for a cooling tower. The system is suitable for a cooling tower group, a single cross-flow cooling tower and a cooling tower group with water entering the tower. Aiming at a cooling tower group, a plurality of stages of main pipes are led out from a cooling main pipe in the system, and a symmetrical pipeline structure is adopted for water distribution of one group of towers: the downstream of the first-stage main pipe is sequentially connected with a first-stage Y-shaped tee joint, two second-stage main pipes, two second-stage Y-shaped tee joints and four third-stage main pipes, and the four third-stage main pipes supply water to four cooling towers; therefore, the water distribution requirements of eight or sixteen towers can be expanded and adapted, and the technology can be partially adopted when the number of the towers is not the specification. When the system is applied to a single cross-flow cooling tower, water on the upper tower can be uniformly distributed to inlets of the water distribution discs; when the system is applied to a cooling tower group with water inflowing in the tower, the problem of equivalent water inflowing at the bottoms of multiple towers can be solved. The system has the advantage of low cost, has automatic adaptability to tower group variable flow, and can realize uniform water distribution regardless of the total amount of incoming water.

Description

Technical Field

[0001] This application relates to the field of cooling equipment, and more particularly to a cooling tower symmetrical pipe equal water inlet system. Background Technology

[0002] As an indispensable core heat dissipation equipment in industrial and civil fields, cooling towers are often combined into a tower group to complete the cooling task in scenarios with large circulating water demand. The full utilization of their cooling efficiency depends heavily on the uniformity of water distribution in each tower. Whether the water flow inside the cooling tower can be evenly distributed to each water distribution unit directly determines the effective utilization rate of the heat exchange area of ​​the packing and the overall cooling efficiency.

[0003] Current mainstream cooling tower water supply systems generally adopt the traditional layout of main pipe, main pipe, and branch pipes, including branch networks, ring networks, and water distribution structures along the way. The inherent defect of this type of system is that, due to the different distances between towers along the main pipe and the different water flow path lengths of the water distribution components and spray units within the tower, the resistance characteristics of each pipe naturally differ, leading to uneven flow distribution. To compensate for this defect, the industry usually uses the method of installing regulating valves on each branch to balance the flow through manual adjustment or automatic control. However, this solution will produce new drawbacks: the initial commissioning process is complex and time-consuming, requiring repeated measurements and adjustments based on professional experience, resulting in low project implementation efficiency; when the system operating conditions fluctuate, the original flow balance is easily disrupted, requiring frequent readjustment, resulting in high maintenance costs; the valve throttling process generates additional energy loss, significantly increasing the system's operating energy consumption, which contradicts the current industry development needs of energy conservation and emission reduction.

[0004] Therefore, there is a need for a simple structure that requires no or reduces valve regulation and can flexibly adapt to different numbers of cooling towers and spatial layouts with equal water intake. Summary of the Invention

[0005] In order to provide a water inlet system that can adapt to different numbers and spatial layouts of cooling towers, this application provides a cooling tower symmetrical pipeline equal water inlet system.

[0006] This application provides a cooling tower symmetrical pipeline equal-volume water inlet system, which adopts the following technical solution: A symmetrical pipeline equal-volume water inlet system for cooling towers includes a main cooling pipe and several water inlet components. The water inlet components are distributed along the length of the main cooling pipe. Each water inlet component includes a primary main pipe, two secondary main pipes, and four tertiary main pipes. One end of the primary main pipe is connected to the main cooling pipe, and the other end of the primary main pipe is provided with a primary tee pipe. One end of each of the two secondary main pipes is connected to both ends of the primary tee pipe. The primary and secondary main pipes are arranged in a Y-shape. The other end of each secondary main pipe is provided with a secondary tee pipe. The four tertiary main pipes are respectively connected to both ends of the two secondary tee pipes. The secondary main pipes and their corresponding tertiary main pipes are arranged in a Y-shape. The primary, secondary, and tertiary main pipes form an overall upward-extending pipe system structure. The four tertiary main pipes are used to supply water to different cooling towers.

[0007] By adopting the above technical solution, a hierarchical structure is constructed by sequentially connecting the cooling main pipe, primary main pipe, two secondary main pipes, and four tertiary main pipes via Y-shaped tees, forming an upwardly extending tree-like symmetrical pipe network. Utilizing the balanced hydraulic characteristics of the symmetrical pipe system, combined with the vertically arranged Y-shaped tees, the water flow achieves natural hydraulic balance at each branching node. The upward extension of the pipe system, combined with gravity, allows water to automatically fill each level of pipe. The end pipes connect to the atmosphere, creating a stable isobaric environment. Regardless of changes in the total water inflow to the main pipe, the system can adaptively adjust the branching state, maintaining a high degree of consistency in the inlet flow of each cooling tower across a wide operating range, without relying on repeated manual adjustments or real-time intervention from automatic control equipment. The core of this structure relies on the standardized design of the symmetrical pipe system and Y-shaped tees, significantly reducing the use of easily worn regulating components such as valves. This not only lowers the initial investment cost but also significantly reduces subsequent maintenance workload and costs due to its simple structure and low failure rate. Furthermore, the hierarchically extended symmetrical structure can flexibly adapt to 2 n The layout of (n is a positive integer) cooling towers provides a standardized and scalable water supply solution for cooling needs of tower groups of different sizes in industrial and civil fields, effectively improving the overall cooling efficiency and operational stability of the cooling tower group.

[0008] Optionally, the tertiary main pipe is equipped with a water distribution structure, which includes a primary branch pipe, two secondary branch pipes, and four tertiary branch pipes. One end of the primary branch pipe is connected to one end of the tertiary main pipe, and the other end of the primary branch pipe is equipped with a tertiary tee pipe. One end of each of the two secondary branch pipes is connected to both ends of the tertiary tee pipe. The primary and secondary branch pipes are arranged in a Y-shape. The other end of each secondary branch pipe is equipped with a quaternary tee pipe. The four tertiary branch pipes are respectively connected to both ends of the two quaternary tee pipes. The secondary branch pipes and their corresponding tertiary branch pipes are arranged in a Y-shape. The tertiary branch pipes are used to supply water to the water distribution tray inside the cooling tower.

[0009] By adopting the above technical solution, the water distribution structure, extended from the three-level main pipeline, continues the Y-shaped symmetrical diversion logic of the main pipeline. Through the symmetrical connection of primary branch pipes, two secondary branch pipes, and four tertiary branch pipes via multi-level Y-shaped tees, a refined water distribution system specifically designed for the tower is constructed. This extends the equal water supply from the inter-tower distribution to each water distribution plate within the tower. The Y-shaped tees at each level of the branch pipes ensure that the water flow remains hydraulically balanced during branch-level diversion, avoiding localized excessive or insufficient water flow due to differences in branch pipe length, straightness, curvature, or varying local resistance. This design ensures that all water distribution trays within each cooling tower receive an equal amount of water flow. It eliminates the need for individual regulating valves or flow control devices for each tray, simplifying the water distribution system structure and reducing equipment complexity. This guarantees uniform water intake across all trays, allowing the cooling tower packing material to be evenly covered by the water flow, maximizing its heat dissipation performance. This significantly improves the cooling efficiency of a single cooling tower and the entire cooling tower group, while also reducing problems such as localized packing aging and scaling caused by uneven water distribution, thus extending the service life of the internal components of the cooling tower.

[0010] Optionally, the tertiary branch pipe is equipped with a siphon elimination device, which includes a water bucket, a baffle, and a chute. The water bucket is vertically arranged, and the tertiary branch pipe is connected to the side wall of the water bucket. The upper end of the water bucket is open, and the baffle is arranged inside the water bucket to reduce splashing of water flowing out of the tertiary branch pipe. One end of the chute is located at the lowest point of the water bucket and is used to supply water to the water distribution tray inside the cooling tower.

[0011] By adopting the above technical solution, the siphon elimination device installed on the tertiary branch pipes, through the synergistic action of the vertically arranged, top-opening water bucket, internal baffle, and bottom chute, constructs an effective anti-siphon mechanism, completely destroying the sealed conditions that cause siphoning. The top-opening design of the water bucket ensures that the highest point of the pipe is always connected to the atmosphere, structurally eliminating the possibility of siphoning and water grabbing in the branch pipes that first meet the siphon conditions. This avoids the phenomenon of uneven water distribution in the branch pipes caused by siphoning and water grabbing, ensuring a stable and consistent water supply to the distribution plate from each tertiary branch pipe. The baffle inside the water bucket can effectively block the siphoning of the three-stage branch pipes. The splashing of water from the branch pipe outlet avoids water waste and prevents splashing water from impacting or corroding the equipment inside the tower, ensuring the cleanliness of the cooling tower's internal environment and the normal operation of the equipment. The chute draws water from the lowest point of the water tank, using gravity to achieve stable water supply, avoiding local water concentration or uneven water distribution caused by direct impact of water flow on the water distribution plate. This allows the water flow to be evenly distributed within the water distribution plate, improving the uniformity of water spraying on the cooling tower packing and further optimizing cooling efficiency. At the same time, the stability of gravity flow also reduces energy loss during water transport, meeting energy-saving requirements.

[0012] Optionally, the siphon elimination device is further provided with a venting filter screen, which is used to cover the upper opening of the water bucket.

[0013] By adopting the above technical solution, the ventilation filter added to the siphon elimination device, by covering the upper opening of the water tank, can effectively block dust, fallen leaves, insects and other debris in the air from entering the water tank and chute, without affecting the connectivity between the water tank and the atmosphere and ensuring the stable operation of the core anti-siphon function. This avoids flow fluctuations, water supply interruptions or equipment failures caused by pipe blockage, ensuring the smooth operation of the water supply system. The filtration effect of the ventilation filter reduces the probability of impurities entering the water distribution plate and the interior of the cooling tower, reducing the risk of packing blockage and water distribution hole blockage. It also reduces the corrosion of metal components inside the tower by impurities, further extending the overall service life of the cooling tower and reducing the frequency and cost of equipment maintenance.

[0014] Optionally, the connection between the third-level branch pipe and the water hopper is a bend, and the water in the third-level branch pipe enters the water hopper at an upward angle of 45°.

[0015] By adopting the above technical solution, the 45° upward bend design at the connection between the three-stage branch pipe and the water tank is a further optimization of the anti-siphon structure. It effectively avoids the formation of a closed water column in the pipe, ensuring that the highest point of the pipe is always indirectly connected to the atmosphere. Compared with the traditional 180° bend, the anti-siphon effect is more stable and reliable, structurally reducing the recurrence of siphon phenomena. This upward water inlet direction can buffer the water flow velocity, reduce the direct impact of the water flow on the side wall of the water tank, reduce the wear or damage to the water tank caused by long-term impact, and extend the service life of the water tank. At the same time, in conjunction with the baffle inside the water tank, it can further reduce water splashing, improve the stability of the water flow in the water tank, and make the water flow more easily converge in the water tank, preventing the water flow from flowing away or stagnating along the water tank wall. This ensures that the water flow can be efficiently and stably delivered to the water distribution plate through the chute, ensuring water supply efficiency and flow stability, keeping the water inlet flow of each water distribution plate consistent, and thus maintaining the stable performance of the cooling tower.

[0016] Optionally, a flow equalizer is installed on the primary main pipe. The flow equalizer includes a flow meter and a regulating valve. Both the flow meter and the regulating valve are installed on the primary main pipe. This applies when the number of cooling towers is not two. n When n is a positive integer, the third-level main pipe that is not connected to the cooling tower can be connected to the recovery tank.

[0017] By adopting the above technical solution, the flow equalizer installed on the primary main pipe, through the combination of a flow meter and a regulating valve, provides the system with accurate flow monitoring and active regulation capabilities. The flow meter can detect the total inlet water velocity and flow rate in real time, providing accurate data support for system operation status assessment, while the regulating valve can actively adjust the flow rate according to actual needs, effectively adapting to cooling towers with a number not exceeding two. n A complex scenario (n is a positive integer). When the number of cooling towers is less than 2.n At that time, the third-level main pipe not connected to the cooling tower can be connected to the recovery tank to replenish the water supply. n The symmetrical piping structure, combined with the flow equalizer for flow control, ensures that the hydraulic balance of the symmetrical piping is not affected by the asymmetrical number of cooling towers, allowing each tower to receive an equal amount of water. When the number of cooling towers exceeds 2... n At the same time, the flow equalizer can precisely regulate the inflow of additional cooling towers. Simultaneously, the tertiary main pipes not corresponding to the actual towers can achieve pipeline diversion and balancing through the recovery tank, avoiding hydraulic imbalance caused by idle pipelines and ensuring that all cooling towers ultimately receive a stable and equal water supply. Compared to passive flow equalization relying solely on symmetrical structures or single methods using only the flow equalizer, this design combines the active control of the flow equalizer with the symmetrical replenishment function of the recovery tank, greatly expanding the system's applicability and breaking the limitation of symmetrical pipelines on the number of towers. It can flexibly handle various non-2 n The need for a large number of tower clusters.

[0018] Optionally, the secondary and tertiary main pipes can be arranged horizontally to form a horizontal piping system.

[0019] By adopting the above technical solution, the design of horizontal layout for secondary and tertiary main pipes is permitted, overcoming the vertical space requirements of vertically extending piping systems. This provides a flexible solution for adapting the system to complex installation environments, effectively addressing scenarios such as cooling tower under-water inlet or internal water inlet structures, or construction sites with limited space and limited pipe laying height. This greatly expands the system's engineering application scope. At the same time, the horizontal layout is more in line with the pipe laying habits of some construction sites, reducing the use of auxiliary components such as elbows and vertical supports, lowering construction difficulty and installation costs, and improving engineering construction efficiency. The layout of the horizontal piping system also facilitates later inspection and maintenance, reduces the frequency of high-altitude operations, improves the safety of the maintenance process, and ensures that the system still has good practicality and operability in complex installation environments.

[0020] Optionally, when a horizontal piping system is constructed, the outlets of all three main pipes need to be higher than the horizontal piping system.

[0021] By adopting the above technical solution, when the system is configured as a horizontal piping system, the tertiary main pipe is required to be higher than the horizontal piping system. This design utilizes the gravity effect generated by the elevation difference to assist in water flow distribution, effectively compensating for the insufficient natural driving force of water flow in a horizontal arrangement, ensuring consistent pressure drop in symmetrical pipelines, and thus achieving equal flow distribution. The elevated outlet design makes it easier for water to drain from the pipeline, avoiding stagnant water areas formed by low-point retention in the horizontal piping system, reducing the risk of water deterioration, bacterial growth, or pipeline corrosion. At the same time, the elevated outlet further ensures the connectivity of the pipeline to the atmosphere, preventing siphoning phenomena that may be caused by changes in water flow state in a horizontal arrangement, and ensuring the stability of system operation. In addition, the gravitational potential energy generated by the elevation difference can also optimize the flow state of water in the horizontal pipeline, reducing the generation of unstable flow states such as eddies and stagnant flow, reducing pipeline resistance losses, improving water transport efficiency, reducing flow fluctuations caused by unstable flow states, ensuring that each cooling tower and water distribution pan can obtain a continuous, stable, and equal amount of water supply, and maintaining the stable performance of the system's cooling performance.

[0022] Optionally, the top of the water hopper is provided with a cover, the cover is provided with a plurality of vent holes, the cover is provided with an adjustment plate for changing the amount of air that can pass through the vent holes, the adjustment plate is provided with a plurality of adjustment holes, the plurality of adjustment holes correspond to the plurality of vent holes, the adjustment plate is rotatably connected to the cover, and the adjustment holes and the vent holes can be in a misaligned state or in a connected state.

[0023] By adopting the above technical solution, the cover and adjustment plate installed on the top of the water hopper, through the corresponding cooperation of the vent holes on the cover and the adjustment holes on the adjustment plate, construct an adjustable ventilation mechanism. Operators can change the misalignment or connection state of the adjustment holes and vent holes by rotating the adjustment plate, and precisely control the ventilation volume of the water hopper according to actual working conditions such as changes in atmospheric pressure, water flow speed, and environmental dust concentration. This adjustable design ensures that the anti-siphon effect can be stably performed in different environments, avoiding the problem of excessive water splashing due to excessive ventilation volume or weakened anti-siphon effect due to insufficient ventilation volume, thus ensuring the stability of water flow in the water hopper. The cover itself can provide basic protection for the top of the water hopper, reducing the entry of large particles of debris and rainwater into the water hopper, and further improving the filtration and protection effect in conjunction with the ventilation filter. At the same time, the presence of the cover also protects the internal structure of the water hopper from direct external interference, extending the service life of internal components such as baffles.

[0024] Optionally, the side wall of the water hopper is provided with a plurality of sliding grooves, the sliding grooves extend along the axial direction of the water hopper, the side wall of the sliding groove is provided with a snap-fit ​​groove, the cover is provided with a plurality of snap-fit ​​blocks, the snap-fit ​​blocks correspond to the plurality of sliding grooves, the snap-fit ​​blocks can slide along the extension direction of the sliding grooves, and when the snap-fit ​​blocks are located in the snap-fit ​​grooves, the cover abuts against the top of the water hopper.

[0025] By adopting the above technical solution, the sliding groove on the side wall of the water tank and the snap-fit ​​block on the cover are designed to facilitate quick installation and removal of the cover. Operators can easily install or remove the cover by sliding the snap-fit ​​block along the extension direction of the sliding groove. Compared with the traditional fixed connection method, this greatly simplifies the installation and removal process, making it easier to clean, inspect, and replace components such as the inside of the water tank, the air filter, and the baffle, reducing maintenance workload and difficulty. When the snap-fit ​​block is located in the snap-fit ​​groove, the cover abuts against the top of the water tank to form a stable connection, which can effectively prevent the cover from loosening or falling off due to vibration and water flow impact during the operation of the cooling tower, ensuring the safety and reliability of the system operation. At the same time, the abutment structure between the cover and the top of the water tank can reduce the entry of external impurities from the gaps, and together with the vent, achieves a balance between protection and ventilation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: By constructing a symmetrical pipeline system from the main pipe to the terminal main pipe, the water volume imbalance caused by path differences and uneven local resistance is fundamentally eliminated. By utilizing the combination of gravity and Y-type tees, the automatic and balanced distribution of circulating water at each level of the distribution node is achieved, ensuring a high degree of consistency in the inlet flow of each cooling tower, thereby giving full play to the cooling effect of each tower and significantly improving the cooling effect of the cooling tower group. By utilizing the water bucket to the atmosphere and the gravity chute, the phenomenon of different resistance and thus different water volumes caused by the different distances of the water distribution plate is eliminated. This achieves automatic and uniform distribution of circulating water to the water distribution plate after it is placed on the tower, ensuring a high degree of consistency in the flow rate of each water distribution plate and each inlet, and significantly improving the overall energy efficiency of the system. For cooling towers with a number other than 2 n In complex scenarios, the flow equalizer on the primary main pipe can precisely adjust the flow rate. With the addition of a recovery tank, it can achieve equal water intake for any number of cooling towers, breaking the limitation of symmetrical piping on the number of towers. The unique structural symmetry of symmetrical pipelines results in symmetrical flow, equal resistance, and equal flow rate. Therefore, within the scope of engineering significance, regardless of whether the total flow rate increases or decreases, symmetrical pipelines can adaptively and uniformly distribute the flow, ensuring equal water intake. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the equal water inlet system with symmetrical piping for a cooling tower.

[0028] Figure 2 yes Figure 1 A schematic diagram of the water distribution structure.

[0029] Figure 3 yes Figure 2 A sectional view of the middle water hopper, used to show the positional relationship between the three-stage branch pipes and the baffles.

[0030] Figure 4 yes Figure 3 A schematic diagram of the structure of the middle cover and the adjustment plate.

[0031] Figure 5 This is a schematic diagram of the water inlet system layout for Example 2.

[0032] Reference numerals: 1. Cooling main pipe; 2. Water inlet assembly; 21. Primary main pipe; 22. Secondary main pipe; 23. Tertiary main pipe; 24. Primary tee pipe; 25. Secondary tee pipe; 3. Flow equalizer; 31. Flow meter; 32. Regulating valve; 4. Water distribution structure; 41. Primary branch pipe; 42. Secondary branch pipe; 43. Tertiary branch pipe; 44. Tertiary tee pipe; 45. Quaternary tee pipe; 5. Siphon elimination device; 51. Water tank; 52. Baffle; 53. Chute; 54. Vent filter; 55. Sliding groove; 56. Snap-fit ​​groove; 57. Snap-fit ​​block; 6. Cover; 61. Vent hole; 62. Adjusting plate; 63. Adjusting hole; 64. Pulley. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a cooling tower symmetrical pipeline equal water inlet system. Example

[0035] Reference Figure 1 A symmetrical pipeline equal-volume water inlet system for a cooling tower includes a main cooling pipe 1 and several water inlet components 2. The water inlet components 2 are distributed along the length of the main cooling pipe 1. Each water inlet component 2 includes a primary main pipe 21, two secondary main pipes 22, and four tertiary main pipes 23. The primary main pipe 21 is vertically arranged, with one end fixed to the main cooling pipe 1 and the other end fixed to a primary tee pipe 24. One end of each of the two secondary main pipes 22 is fixed to one end of the primary tee pipe 24. The primary main pipe 21 and the two secondary main pipes... The secondary main pipes 22 are arranged in a Y-shape, and two secondary main pipes 22 are symmetrically arranged along the primary tee pipe 24. The other end of the secondary main pipe 22 is fixedly provided with a secondary tee pipe 25. One end of each of the four tertiary main pipes 23 is fixedly provided on both ends of the two secondary tee pipes 25. The two tertiary main pipes 23 and the corresponding secondary main pipes 22 are arranged in a Y-shape, and the two tertiary main pipes 23 are symmetrically arranged along the secondary tee pipe 25. The primary main pipe 21, the secondary main pipe 22 and the tertiary main pipe 23 form an overall upward extending pipe system structure. The tertiary main pipes 23 are used to supply water to different cooling towers.

[0036] Reference Figure 1A flow equalizer 3 is installed on the primary main pipe 21. The flow equalizer 3 includes a flow meter 31 and a regulating valve 32. The flow meter 31 and the regulating valve 32 are distributed and fixedly installed on the primary main pipe 21 along the direction of water flow. When the number of cooling towers is not 2 n At that time, the third-level main pipe 23, which is not corresponding to the cooling tower, can be connected to the recovery tank.

[0037] Reference Figure 1 and Figure 2 The tertiary main pipe 23 is equipped with a water distribution structure 4 for distributing water to the cooling tower. The water distribution structure 4 includes a primary branch pipe 41, two secondary branch pipes 42, and four tertiary branch pipes 43. One end of the primary branch pipe 41 is fixedly connected to one end of the tertiary main pipe 23. The other end of the primary branch pipe 41 is fixedly equipped with a tertiary tee pipe 44. One end of the two secondary branch pipes 42 is fixedly installed on both ends of the tertiary tee pipe 44. The primary branch pipe 41 and the secondary branch pipes 42 are distributed in a Y-shape, and the two secondary branch pipes 42 are symmetrically arranged along the tertiary tee pipe 44. The other end of the secondary branch pipes 42 is fixedly equipped with a quaternary tee pipe 45. One end of the four tertiary branch pipes 43 is fixedly installed on both ends of the two quaternary tee pipes 45. The two tertiary branch pipes 43 and the corresponding secondary branch pipes 42 are distributed in a Y-shape, and the two tertiary branch pipes 43 are symmetrically arranged along the quaternary tee pipes 45.

[0038] Reference Figure 2 and Figure 3 A siphon elimination device 5 is installed at the other end of the tertiary branch pipe 43. The siphon elimination device 5 includes a water bucket 51, a baffle 52, a chute 53, and a ventilation filter 54. The water bucket 51 is vertically arranged. The tertiary branch pipe 43 is connected to the side wall of the water bucket 51. The connection between the tertiary branch pipe 43 and the water bucket 51 is a bend. The water in the tertiary branch pipe 43 enters the water bucket 51 at an upward angle of 45°. The baffle 52 is located inside the water bucket 51. The baffle 52 is an arc-shaped baffle or a spherical baffle. The inner arc surface of the baffle 52 is used to block and guide the water flow of the tertiary branch pipe 43 to the bottom of the water bucket 51. The height of the water bucket 51 is higher than the height of the tertiary branch pipe 43. The upper end face of the water bucket 51 is open. The height of the ventilation filter 54 is higher than the height of the baffle 52. The ventilation filter 54 is fixedly installed on the inner side wall of the water bucket 51.

[0039] Reference Figure 3 and Figure 4A sliding groove 55 is provided on the side wall of the water hopper 51, extending vertically. A snap-fit ​​groove 56 is provided on the side wall of the sliding groove 55, extending radially along the water hopper 51. A cover 6, disc-shaped, is also provided on the water hopper 51. The cover 6 covers the opening on the upper surface of the water hopper 51. Several snap-fit ​​blocks 57 are provided on the cover 6, corresponding to several snap-fit ​​grooves 56. The snap-fit ​​blocks 57 can slide within the sliding groove 55. When the snap-fit ​​blocks 57 are engaged within the snap-fit ​​grooves 56, the cover 6 abuts against the upper surface of the water hopper 51. The cover 6 has an opening... The cover 6 is provided with several vent holes 61, which are evenly distributed circumferentially along the axis of the cover body 6. The cover body 6 is also provided with an adjusting plate 62, which is disc-shaped and coaxially arranged with the cover body 6. The adjusting plate 62 is rotatably connected to the cover body 6. The adjusting plate 62 is provided with several adjusting holes 63, which are evenly distributed circumferentially along the axis of the adjusting plate 62. The adjusting plate 62 is provided with a lever 64. When the adjusting hole 63 is connected to the vent hole 61, the water tank 51 can be normally connected to the outside. When the adjusting hole 63 is misaligned with the vent hole 61, the water tank 51 is in a sealed state.

[0040] The implementation principle of Example 1 is as follows: The system adopts a three-level symmetrical structure of main pipe, branch pipe, and main pipe. The core relies on the symmetrical flow-dividing characteristics of the Y-shaped tee to achieve even flow distribution. The water flow from the cooling main pipe 1 first enters the primary main pipe 21, then symmetrically diverts through the primary tee pipe 24 to two secondary main pipes 22, and further symmetrically diverts through the secondary tee pipe 25 to four tertiary main pipes 23, forming a tree-like symmetrical pipe network. This layout ensures that the path length, pipe diameter, and local resistance of each level of pipe are completely consistent at the axis of symmetry. According to the principles of fluid mechanics, the friction resistance and local resistance of symmetrical pipes are equal, enabling automatic even flow distribution under the same inlet pressure. It ensures equal water intake for multiple cooling towers without the need for additional adjustment components. The vertical arrangement utilizes gravity to automatically fill the pipes, creating an isobaric environment at the end, suitable for conventional installation scenarios.

[0041] For the water distribution process inside the tower, the water distribution structure 4 extending from the three-level main pipe 23 continues the above symmetrical logic. Through the three-level tee pipe 44 and the four-level tee pipe 45, the water flow is successively distributed to the four three-level branch pipes 43, so that the multiple water distribution plates in a single cooling tower receive equal water flow. At the same time, the symmetrical design of the Y-shaped tee makes the flow pattern stable during the distribution process, avoiding the influence of eddies, deflection and other phenomena on the distribution accuracy, and ensuring the hydraulic balance of the whole process.

[0042] The connection between the tertiary branch pipe 43 and the water hopper 51 adopts a 45° upward bend design, replacing the traditional 180° bend. This ensures that the highest point of the pipe is always indirectly connected to the atmosphere, breaking the airtight conditions caused by the siphon effect. The upper end of the water hopper 51 is open and equipped with a venting filter 54, maintaining connectivity with the atmosphere while preventing debris from entering. This ensures that the water pressure inside the pipe is balanced with atmospheric pressure, eliminating flow deviation caused by siphon at its source. The baffle 52 inside the water hopper 51 guides the water flow direction and reduces splashing, allowing the water to smoothly converge at the bottom of the water hopper 51. From there, the water is transported to the distribution plate by gravity through the chute 53. The gravity flow design of the chute 53 avoids localized water concentration caused by direct impact of the water flow on the distribution plate, and also eliminates the uneven resistance caused by differences in the distance between the distribution plates, ensuring uniform water intake to each distribution plate. In addition, the adjustable vent 61 structure on the cover 6 can flexibly adjust the ventilation volume of the water bucket 51 according to changes in working conditions such as atmospheric pressure and water flow velocity, further ensuring the stability of the anti-siphon effect and enabling the system to maintain flow balance under complex working conditions. Example

[0043] The difference between Example 2 and Example 1 is that: (Refer to...) Figure 5 The secondary main pipe 22 and the tertiary main pipe 23 are arranged horizontally, and the overall water inlet system becomes a horizontal pipe system. The outlet of the tertiary main pipe 23 is higher than the horizontal pipe system.

[0044] The implementation principle of Example 2 is as follows: After the water flows into the primary main pipe 21 from the cooling main pipe 1, it is symmetrically branched through the primary tee pipe 24 to two horizontally arranged secondary main pipes 22, and then further symmetrically branched through the secondary tee pipe 25 to four horizontally arranged tertiary main pipes 23, forming a planar tree-like symmetrical pipe network. This layout strictly ensures that the path length, pipe diameter, and local resistance of each level of pipe are completely consistent at the axis of symmetry. According to the principles of fluid mechanics, the friction resistance and local resistance of the symmetrical pipes are equal. Under the same inlet water pressure, the water flow can be automatically and evenly distributed, ensuring equal water intake for multiple cooling towers without the need for additional adjustment components, thus continuing the core advantage of hydraulic balance in vertical pipe systems. At the same time, the horizontal arrangement effectively reduces the vertical space requirements of the pipe system, breaks through the limitations of vertical pipe systems on installation height, and is suitable for engineering scenarios with limited space on the construction site.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling tower symmetrical piping equal-volume water inlet system, characterized in that: It includes a cooling main pipe (1) and several water inlet components (2). The water inlet components (2) are distributed along the length of the cooling main pipe (1). Each water inlet component (2) includes a primary main pipe (21), two secondary main pipes (22), and four tertiary main pipes (23). One end of the primary main pipe (21) is connected to the cooling main pipe (1), and the other end of the primary main pipe (21) is provided with a primary tee pipe (24). One end of each of the two secondary main pipes (22) is connected to both ends of the primary tee pipe (24). (21) and the secondary main pipe (22) are distributed in a Y-shape. The other end of the secondary main pipe (22) is provided with a secondary tee pipe (25). The four tertiary main pipes (23) are connected to the two ends of the two secondary tee pipes (25) respectively. The secondary main pipe (22) and the corresponding tertiary main pipe (23) are distributed in a Y-shape. The primary main pipe (21), the secondary main pipe (22) and the tertiary main pipe (23) form an overall upward extending pipe system structure. The four tertiary main pipes (23) are used to supply water to different cooling towers respectively.

2. The equal-volume water inlet system with symmetrical piping for a cooling tower according to claim 1, characterized in that: A water distribution structure (4) is provided on the three-level main pipe (23). The water distribution structure (4) includes a primary branch pipe (41), two secondary branch pipes (42) and four tertiary branch pipes (43). One end of the primary branch pipe (41) is connected to one end of the three-level main pipe (23). The other end of the primary branch pipe (41) is provided with a tertiary tee pipe (44). One end of the two secondary branch pipes (42) is connected to both ends of the tertiary tee pipe (44). The primary branch pipe (41) and the secondary branch pipe (42) are distributed in a Y-shape. The other end of the secondary branch pipe (42) is provided with a quaternary tee pipe (45). The four tertiary branch pipes (43) are respectively connected to both ends of the two quaternary tee pipes (45). The secondary branch pipes (42) and the corresponding tertiary branch pipes (43) are distributed in a Y-shape. The tertiary branch pipes (43) are used to supply water to the water distribution tray in the cooling tower.

3. A cooling tower symmetrical pipeline equal water inlet system according to claim 2, characterized in that: A siphon elimination device (5) is provided on the third-level branch pipe (43). The siphon elimination device (5) includes a water bucket (51), a baffle (52), and a chute (53). The water bucket (51) is vertically arranged. The third-level branch pipe (43) is connected to the side wall of the water bucket (51). The upper end of the water bucket (51) is open. The baffle (52) is located inside the water bucket (51). The baffle (52) is used to reduce the splashing of water flowing out of the third-level branch pipe (43). One end of the chute (53) is located at the lowest point of the water bucket (51). The chute (53) is used to supply water to the water distribution plate in the cooling tower.

4. A cooling tower symmetrical pipeline equal water inlet system according to claim 3, characterized in that: The siphon elimination device (5) is also provided with a ventilation filter (54), which is used to cover the upper opening of the water bucket (51).

5. A cooling tower symmetrical pipeline equal water inlet system according to claim 3, characterized in that: The connection between the third-level branch pipe (43) and the water bucket (51) is a bend, and the water in the third-level branch pipe (43) enters the water bucket (51) at an upward angle of 45°.

6. A cooling tower symmetrical pipeline equal water inlet system according to claim 1, characterized in that: A flow equalizer (3) is installed on the primary main pipe (21). The flow equalizer (3) includes a flow meter (31) and a regulating valve (32). Both the flow meter (31) and the regulating valve (32) are installed on the primary main pipe (21). When the number of cooling towers is not 2 n When n is a positive integer, the third-level main pipe (23) that is not connected to the cooling tower can be connected to the recycling tank.

7. A cooling tower symmetrical pipeline equal water inlet system according to claim 1, characterized in that: The secondary main pipe (22) and the tertiary main pipe (23) can be arranged horizontally to form a horizontal piping system.

8. A cooling tower symmetrical pipeline equal water inlet system according to claim 7, characterized in that: When a horizontal piping system is formed, the outlets of the three main pipes (23) must all be higher than the horizontal piping system.

9. A cooling tower symmetrical pipeline equal water inlet system according to claim 3, characterized in that: The top of the water tank (51) is provided with a cover (6), and the cover (6) is provided with a plurality of ventilation holes (61). The cover (6) is provided with an adjustment plate (62) to change the amount of air that can be passed through the ventilation holes (61). The adjustment plate (62) is provided with a plurality of adjustment holes (63). The plurality of adjustment holes (63) correspond to the plurality of ventilation holes (61). The adjustment plate (62) is rotatably connected to the cover (6). The adjustment holes (63) and the ventilation holes (61) can be in a misaligned state or in a connected state.

10. A cooling tower symmetrical pipeline equal water inlet system according to claim 9, characterized in that: The side wall of the water tank (51) is provided with a plurality of sliding grooves (55), which extend along the axial direction of the water tank (51). The side wall of the sliding groove (55) is provided with a snap-fit ​​groove (56). The cover (6) is provided with a plurality of snap-fit ​​blocks (57), which correspond to the plurality of sliding grooves (55). The snap-fit ​​blocks (57) can slide along the extension direction of the sliding grooves (55). When the snap-fit ​​blocks (57) are located in the snap-fit ​​grooves (56), the cover (6) abuts against the top of the water tank (51).

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