Self-balancing energy dissipater for cooling tower water distribution basin

Abstract

The utility model discloses a kind of self-balancing energy dissipaters for cooling tower water distribution basin, belong to cooling tower technical field, including energy dissipater box body, energy dissipater box body inside fixedly arranged with energy dissipater corrugated board located in water inlet flange directly below, energy dissipater corrugated board is continuously bent in W shape, and evenly distributed with through-hole on board;At least one first water outlet and at least one second water outlet are opened in energy dissipater box bottom plate, and the first water outlet is located in the downstream of the projection area of energy dissipater corrugated board on energy dissipater box bottom plate;The side of first water outlet away from energy dissipater corrugated board is provided with the upper baffle of extending upwards;The side of second water outlet away from energy dissipater corrugated board is provided with the lower baffle of extending downwards;The side plate of energy dissipater box bottom plate is formed by extending upwards in two sides, and the height of two sides side plate gradually reduces from the end close to water inlet flange to the end away from water inlet flange.The utility model solves the problem that water distribution basin water distribution uniformity is not good, realizes uniform, stable, self-balancing water distribution in large-span flow range.

Description

Technical Field

[0001] This utility model belongs to the field of cooling tower technology, specifically relating to a self-balancing energy consumer for a cooling tower water distribution basin, and in particular an integrated energy-consuming device that can achieve uniform and stable water distribution and effectively consume the kinetic energy of the incoming water under large-span flow rate changes. Background Technology

[0002] In a cooling tower system, the water distribution basin (or water spreader) is a key component responsible for evenly distributing circulating hot water onto the surface of the packing material. The uniformity of its water distribution directly determines the heat exchange efficiency and operational stability of the cooling tower. Traditional water distribution basin systems commonly employ energy dissipators to eliminate the kinetic energy at the inlet, preventing direct water flow impact that could cause splashing, eddies, and uneven water distribution.

[0003] Common energy consumption device structures in existing technologies include Figure 1 As shown, this is typically a centrally located water inlet type, where a centrally positioned inlet is used in conjunction with an energy-dissipating orifice plate below to initially dissipate energy from the water flow. While this structure can dissipate some kinetic energy to a certain extent, it still has drawbacks: First, because the inlet is centrally located, the water flow is concentrated and impacts downwards within the energy-dissipating box, resulting in a water level inside the energy-dissipating box that is much higher than the water level in the external water distribution basin, creating a local high-pressure zone. This leads to excessive water distribution in the area directly below the energy-dissipating box, while insufficient water distribution is achieved in the surrounding areas, resulting in poor water distribution uniformity. Second, this type of structure is not well adapted to changes in flow rate. Under low flow conditions (such as 30% of the rated flow), the water flow cannot be effectively distributed throughout the entire energy-dissipating box area, making it more prone to dead zones and uneven distribution, and even leading to the risk of localized freezing.

[0004] Therefore, there is an urgent need for a new type of energy dissipator structure that can achieve true self-balancing water distribution over a wide flow range, and completely solve technical problems such as uneven water flow distribution, easy formation of eddies, and poor adaptability to low flow conditions. Utility Model Content

[0005] To address the above problems, this utility model provides a self-balancing energy consumer for cooling tower water distribution basins, which solves the problem of poor water distribution uniformity in existing technologies and achieves uniform, stable, and self-balancing water distribution in the system over a large span flow range.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A self-balancing energy consumer for a cooling tower water distribution basin includes an energy-consuming box body, which is formed by connecting an energy-consuming box cover plate and an energy-consuming box bottom plate. A water inlet flange is provided on the energy-consuming box cover plate. An energy-consuming corrugated plate is fixedly installed inside the energy-consuming box body, located directly below the water inlet flange. The energy-consuming corrugated plate has a continuous W-shaped bend and evenly distributed through holes. At least one first water outlet and at least one second water outlet are provided on the energy-consuming box bottom plate. The first water outlet is located downstream of the projection area of ​​the energy-consuming corrugated plate on the energy-consuming box bottom plate. An upwardly extending upper baffle is provided on the side of the first water outlet away from the energy-consuming corrugated plate. A downwardly extending lower baffle is provided on the side of the second water outlet away from the energy-consuming corrugated plate. Side plates extend upwards on both sides of the energy-consuming box bottom plate, and the height of the side plates gradually decreases from the end closer to the water inlet flange to the end farther away from the water inlet flange.

[0007] The beneficial effects of the above technical solution are as follows: This solution constitutes a fully functional self-balancing energy-consuming system. The structure of the cover plate and the bottom plate being connected together facilitates manufacturing and sealing installation. The W-shaped corrugated plate located directly below the inlet can efficiently break, disperse, and consume the high-speed kinetic energy of the incoming water through its unique curved structure and through holes, preventing water from directly hitting the bottom of the basin and causing splashing and eddies. The height-gradient side plates, along with the uniquely designed upper and lower baffles and multiple outlets, work together to automatically adjust the water flow distribution path according to the inlet flow rate. At high flow rates, the water can be quickly discharged through the outlets and overflow from the lower end of the side plates; at low flow rates, the structure can still ensure that the water flow is effectively guided and discharged from the key outlets, thereby achieving extremely uniform and stable water distribution in the water distribution basin across a wide flow range from low to high loads, fundamentally solving the technical problems of uneven water distribution, easy eddies, and easy freezing at low loads in traditional structures.

[0008] As a further improvement to the above scheme, the first and second water outlets are rectangular in shape.

[0009] The beneficial effects of the above technical solution are as follows: The rectangular outlet has a larger opening area, lower water flow resistance, and allows for smoother passage of larger volumes of water, significantly reducing the risk of blockage by impurities. Simultaneously, the rectangular edges facilitate integrated bending with the baffle, simplifying the manufacturing process and improving the overall structural integrity and mechanical strength.

[0010] As a further improvement to the above scheme, there are two second water outlets, which are symmetrically distributed on the bottom plate of the energy consumption box at the end away from the water inlet flange.

[0011] The beneficial effects of the above technical solution are as follows: By setting up two symmetrical second water outlets and arranging them at the ends away from the impact of incoming water, a "side-priority" water distribution strategy is achieved. This ensures that sufficient water flow is preferentially distributed to the outer and edge areas of the water distribution basin that are most prone to water shortage, thus perfectly complementing the water flow from the first water outlet to the central area. This greatly improves the uniformity of water distribution across the entire water distribution basin area and completely eliminates dead zones with insufficient water distribution at the edges.

[0012] As a further improvement to the above scheme, the number of first water outlets is one, and it is located in the middle of the width direction of the bottom plate of the energy consumption box.

[0013] The beneficial effects of the above technical solution are as follows: a centrally located first outlet serves as the core distribution channel, positioned directly opposite the main flow channel after energy dissipation by the W-shaped corrugated plate. This efficiently concentrates and guides the initially stable water flow to irrigate the central area of ​​the water distribution basin. Together with the two second outlets located at the ends, it forms a balanced water distribution pattern of "one central and two external," ensuring a more rational, orderly, and symmetrical flow distribution within the energy dissipation box and at the outlet.

[0014] As a further improvement to the above scheme, the groove formed by the W-shaped bend of the energy-consuming corrugated plate faces the direction of the first and second water outlets.

[0015] The beneficial effects of the above technical solution are as follows: by orienting the groove of the W-shaped corrugated plate towards the outlet, the water flow, after being broken up and dissipated by the plate, is naturally guided and moves towards the preset outlet area. This orientation design optimizes the water flow path, reduces turbulence and energy loss within the box, and makes the water flow more smoothly and efficiently to the outlet, further improving the overall energy consumption efficiency and distribution effect.

[0016] As a further improvement to the above solution, the upper baffle is integrally formed by bending a portion of the bottom plate of the energy-consuming box upwards.

[0017] The beneficial effects of the above technical solution are as follows: the one-piece bent upper baffle and bottom plate form a seamless whole, completely avoiding potential leakage points and structural weaknesses that may exist in welding or bolted connections, ensuring complete sealing and extremely high mechanical strength of this critical component. This not only eliminates the risk of water leakage but also better withstands the long-term impact of water flow, while reducing the number of parts and assembly steps, thus lowering manufacturing costs.

[0018] As a further improvement to the above solution, the lower baffle is integrally formed by bending a portion of the energy-consuming box bottom plate downwards.

[0019] The beneficial effects of the above technical solution are as follows: the lower baffle, which also adopts the one-piece bending forming process, has the same advantages as the upper baffle in terms of leak-free operation, high strength, and low cost. Its downward-extending structure can effectively guide the water flow from the second outlet, causing it to diffuse downwards and moderately to the side, preventing the water flow from being sprayed too far forward due to inertia. This promotes the full diffusion and mixing of the water flow in the water distribution basin, greatly contributing to the uniformity of the overall water distribution.

[0020] This utility model achieves the following overall beneficial effects through a W-shaped corrugated plate multi-stage energy-consuming design, a water outlet layout with height-gradient side plates and upper and lower baffles, and an eccentric water inlet and outer-side priority water distribution strategy: 1. Significantly improved water distribution uniformity: Through multi-stage energy consumption and self-balancing water flow distribution mechanism, uniform water distribution is ensured under different flow conditions, completely avoiding the problem of uneven water distribution caused by water level difference in traditional structures; 2. Enhanced wide flow adaptability: The gradually changing side plate height design and multi-outlet structure enable the system to automatically adjust the water flow distribution within a flow range of 30%-100%, making it highly adaptable and especially suitable for operation under varying conditions; 4. Optimized anti-icing and anti-vortex performance: Through water flow guidance and backflow design, it effectively prevents local icing and water flow vortex phenomena at low flow rates, thereby improving the stability of system operation; Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a traditional energy consumer structure.

[0022] Figure 2 This is a schematic diagram of the installation structure of the self-balancing energy-consuming box for water inlet of this utility model.

[0023] Figure 3 This is a schematic diagram of the exploded structure of the self-balancing energy-consuming box for water inlet.

[0024] Figure 4 This is a schematic diagram of the side structure of the self-balancing energy-consuming box for water inlet.

[0025] In the diagram: 5. Energy consumption box body; 51. Water inlet flange; 52. Energy consumption box cover; 53. Energy consumption corrugated plate; 54. Energy consumption box bottom plate; 55. First water outlet; 56. Upper baffle; 57. Second water outlet; 58. Lower baffle; 59. Side plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0027] This embodiment provides a self-balancing energy consumer for a cooling tower water distribution basin, which is installed inside the cooling tower water distribution basin to receive and consume the kinetic energy of the incoming water and distribute the water flow evenly to the water distribution basin.

[0028] 1. Overall structure and connection relationships See Figures 2 to 4 The self-balancing energy consumer mainly includes an energy consumption box body 5. The energy consumption box body 5 is constructed by connecting an energy consumption box cover plate 52 and an energy consumption box base plate 54 with fasteners, forming a flat, rectangular box structure that is open at the top and hollow inside. A circular through hole is provided near the end of the energy consumption box cover plate 52, and a water inlet flange 51 is bolted to this through hole. The water inlet flange 51 is used for a flanged connection to an external water inlet pipe.

[0029] The energy-consuming box cover of the energy-consuming box body 5 forms part of the water-sprinkler cover, such as Figure 2 As shown, the energy-consuming box body is installed on the bottom plane of the cooling tower water distribution basin.

[0030] 2. Internal energy-consuming structure and working principle Inside the energy-consuming box 5, directly below the inlet flange 51, an energy-consuming corrugated plate 53 is fixedly installed. This energy-consuming corrugated plate 53 is made of stainless steel plate through a pressing process, and its overall shape is a continuous "W" shaped bending structure, with the groove formed by the bending facing the water outlet provided on the bottom plate 54 of the energy-consuming box.

[0031] Multiple circular through holes are evenly distributed in a matrix on the energy-dissipating corrugated plate 53. When the high-pressure water flow impacts vertically downward from the inlet flange 51, it first hits the W-shaped curved surface of the energy-dissipating corrugated plate 53. The W-shaped structure consumes the linear kinetic energy of the water flow by changing the direction of the water flow and increasing the flow path. The through holes further divide and break the large water flow into multiple fine turbulent flows, thereby achieving multi-stage energy consumption, effectively eliminating the impact force of the water flow, and preventing the formation of vortices and violent splashing in the box.

[0032] 3. Water outlet, flow guidance, and adaptive overflow structure The energy dissipation box base plate 54 is provided with three water outlets for discharging the energy-dissipated water to the external water distribution basin. These three water outlets include a first water outlet 55 and two second water outlets 57.

[0033] The first outlet 55 is rectangular in shape and is located downstream of the projection area of ​​the energy-consuming corrugated plate 53. On the edge of the first outlet 55 away from the energy-consuming corrugated plate 53, the bottom plate 54 of the energy-consuming box is bent upward to form a vertical upper baffle 56. Its function is to block part of the water flow, ensuring that sufficient water can be discharged from the first outlet 55 and flow to the middle area of ​​the water distribution basin.

[0034] The two second water outlets 57 are also rectangular in shape. They are symmetrically distributed on the bottom plate 54 of the energy-consuming box at the end away from the inlet flange 51 (i.e., the end near the side wall of the water distribution basin). On the edge of each second water outlet 57 away from the energy-consuming corrugated plate 53, the bottom plate 54 of the energy-consuming box is bent downward to form a vertical lower baffle 58. Its function is to guide the water flow from the second water outlet 57, causing it to diffuse downward and laterally, preventing the water flow from spraying too far, and promoting uniform mixing of the water flow in the water distribution basin.

[0035] The long sides of the energy-consuming box base plate 54 are bent upwards to form two side plates 59 with gradually varying heights. The height of the side plates 59 decreases linearly from 50mm near the inlet flange 51 to 30mm away from the inlet flange 51. This design allows the energy-consuming box base plate 54 and the side plates 59 to form an inclined flow guide surface. When the inlet flow rate increases sharply, exceeding the discharge capacity of the three outlets, the water will overflow from the lower end of the side plate 59, thus achieving adaptive overflow. The larger the flow rate, the closer the overflow occurs to the upper end of the side plate, and the larger the coverage area, ensuring uniform water flow distribution under different flow conditions.

[0036] 4. Work Process The circulating hot water from the cooling tower enters the energy consumption box 5 through the inlet pipe route via the inlet flange 51.

[0037] The water flow first impacts the energy-dissipating corrugated plate 53, and its kinetic energy is largely consumed by the W-shaped structure and through holes, causing the water flow to be broken and dispersed.

[0038] After the water flow stabilizes, it gathers at the bottom of the energy-consuming box. Guided by the gradually changing side plate 59, the water flow naturally tends to flow to the lower side.

[0039] Most of the water flow is blocked by the upper baffle 56 during its flow, and some of the water is discharged from the first outlet 55 to irrigate the filler in the middle area of ​​the water-spreading basin.

[0040] The remaining water flows around both sides of the upper baffle 56, continues to flow towards the end of the energy-consuming box, and is discharged through the two second outlets 57. The lower baffle 58 causes the water to flow downward and diffuse towards the side wall of the watering basin, ensuring that the edge area is adequately irrigated.

[0041] Under low flow conditions (such as 30% load), the water is mainly discharged through the first outlet 55 and the two second outlets 57, resulting in uniform water distribution.

[0042] Under high flow conditions (such as 100% load), the outlet works at full load, and excess water overflows from the lower end of the side plate 59 with gradually changing height, automatically expanding the water distribution range and always maintaining uniform and stable water distribution.

[0043] Through the coordinated operation of the above-mentioned specific structures, this utility model achieves the following technical effects: The W-shaped energy-dissipating corrugated plate 53 completes the core energy-dissipating function, eliminating the kinetic energy of the incoming water; the layout of the three outlets realizes the vertical distribution of water flow; the upper and lower baffles ensure that the water flow is discharged along a preset path and prevents splashing; the height-gradient side plate 59 realizes the adaptive overflow distribution in the lateral direction according to the flow rate. Ultimately, this self-balancing energy dissipator ensures that the cooling tower water distribution basin can achieve extremely uniform and stable water distribution within a wide flow rate variation range of 30% to 100%, completely solving the technical problems of uneven water distribution, easy eddy currents, and low-flow icing. At the same time, its modular design facilitates installation and maintenance.

[0044] It should be noted that, in this document, the terms "comprising," "including," and any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A self-balancing energy consumer for a cooling tower water distribution basin, comprising an energy-consuming box body (5), characterized in that, The energy-consuming box body (5) is formed by connecting the energy-consuming box cover plate (52) and the energy-consuming box bottom plate (54); A water inlet flange (51) is provided on the energy consumption box cover plate (52); The energy-consuming box body (5) is fixedly provided with an energy-consuming corrugated plate (53) located directly below the water inlet flange (51). The energy-consuming corrugated plate (53) is continuously bent in a W shape and has through holes evenly distributed on the plate. The energy-consuming box bottom plate (54) is provided with at least one first water outlet (55) and at least one second water outlet (57), and the first water outlet (55) is located downstream of the projection area of ​​the energy-consuming corrugated plate (53) on the energy-consuming box bottom plate (54). An upwardly extending upper baffle (56) is provided on the side of the first water outlet (55) away from the energy-consuming corrugated plate (53). The second outlet (57) is provided with a downwardly extending lower baffle (58) on the side away from the energy-consuming corrugated plate (53); The bottom plate (54) of the energy-consuming box extends upward on both sides to form side plates (59), and the height of the side plates (59) on both sides gradually decreases from the end closer to the water inlet flange (51) to the end farther away from the water inlet flange (51).

2. The self-balancing energy dissipator according to claim 1, characterized in that, The first outlet (55) and the second outlet (57) are rectangular in shape.

3. The self-balancing energy dissipator according to claim 1, characterized in that, There are two second water outlets (57), which are symmetrically distributed on the bottom plate (54) of the energy consumption box away from the water inlet flange (51).

4. The self-balancing energy dissipator according to claim 3, characterized in that, The number of the first water outlet (55) is one, and it is located in the middle of the width direction of the bottom plate (54) of the energy consumption box.

5. The self-balancing energy dissipator according to claim 1, characterized in that, The groove formed by the W-shaped bend of the energy-consuming corrugated plate (53) faces the first outlet (55) and the second outlet (57).

6. The self-balancing energy dissipator according to claim 1, characterized in that, The upper baffle (56) is integrally formed by bending a portion of the energy-consuming box bottom plate (54) upwards.

7. The self-balancing energy dissipator according to claim 1, characterized in that, The lower baffle (58) is integrally formed by bending a portion of the energy-consuming box bottom plate (54) downwards.

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