Cross-flow canal branch double-cylinder energy dissipation and scour prevention structure

Abstract

The application discloses a cross-flow river branch double-cylinder energy dissipation and impact prevention structure, relates to the technical field of energy dissipation and impact prevention of hydraulic engineering, and comprises a water collecting mechanism, one end of the water collecting mechanism is provided with an auxiliary energy dissipation mechanism, and the inner side of the auxiliary energy dissipation mechanism is provided with a main energy dissipation mechanism. The energy dissipation plate is provided, and is connected with the transmission gear through the rotating shaft, the transmission belt is arranged on the outer wall of the transmission gear to realize synchronous transmission, one of the transmission gears is driven to rotate by the first motor, and then the whole synchronous rotation is driven, so that the opening and closing operation of the plurality of energy dissipation plates is facilitated. The first limiting piece and the second limiting piece provide the limiting effect outside during the transmission process, the transmission belt is stably used, the direct current water source enters the inside of the inner layer cylinder after the energy dissipation plate is opened, the opening and closing size is adjustable, the outer wall of the energy dissipation plate is provided with the energy dissipation guide strip and the energy dissipation resistance plate, the hydraulic potential energy is further reduced, the water inflow speed is slowed down, and the impact force is further reduced.

Description

Technical Field

[0001] This invention relates to the field of energy dissipation and scour prevention technology in water conservancy projects, specifically to a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary. Background Technology

[0002] At the confluence of tributaries and at the outlet of tributaries of cross-river canals, turbulent flow patterns are easily formed due to factors such as differences in water flow velocity and sudden changes in flow direction. This generates a large water flow impact force, causing erosion and damage to the riverbank and bottom protection structures. This not only affects the stability of the river channel but may also endanger the safety of surrounding structures.

[0003] In the prior art, such as the patent application CN202322665647.3, "Waterfall Structure and its Tributary Confluence Project", the structure includes: a high base, at least one step mechanism, multiple drainage holes, multiple energy dissipation structures, and a low base; the tributary confluence project is applied at the confluence of tributaries to control the flow velocity of the water entering the water diversion channel, and the tributary confluence project includes the aforementioned waterfall structure; by setting up a tributary confluence project with a waterfall structure at the confluence of canal tributaries, the confluence of canal tributaries has the characteristics of energy dissipation, scour prevention, and safe navigation, ensuring a smooth connection between the tributary and the main stream.

[0004] In existing water conservancy projects, energy dissipation and scour prevention structures such as stilling basins and diversion dikes generally suffer from homogeneous design schemes and simple structural forms, resulting in insufficient energy dissipation efficiency. The impact energy of water flow cannot be fully dissipated, and high-speed water flow can easily penetrate the protected area of ​​the structure, causing continuous scouring of the downstream riverbed and banks. Moreover, the scour resistance is weak, and a single structure cannot withstand the hydraulic impact of high flow velocity and large flow. Long-term operation is prone to structural wear, cracks, and even local collapse. To address the above problems, a double-cylinder energy dissipation and scour prevention structure for cross-flow canal tributaries is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary, in order to solve the problems of insufficient energy dissipation efficiency, inability to fully dissipate water flow impact energy, easy penetration of high-speed water flow into the structure's protection area, continuous scour of the downstream riverbed and banks, weak scour resistance, and difficulty for a single structure to withstand the hydraulic impact of high flow velocity and large flow rate. Long-term operation is prone to structural wear, cracks, and even local collapse.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-cylinder energy dissipation and anti-scour structure for a cross-flow canal tributary, comprising a water collection mechanism, an auxiliary energy dissipation mechanism at one end of the water collection mechanism, a main energy dissipation mechanism at the inner side of the auxiliary energy dissipation mechanism, and a drainage mechanism at the outer side of the auxiliary energy dissipation mechanism, wherein the auxiliary energy dissipation mechanism includes an outer sleeve, and a plurality of energy dissipation holes are uniformly and throughly opened on one side of the outer sleeve; The main energy dissipation mechanism includes an inner cylinder. The inner wall of the inner cylinder has several rotating shafts evenly distributed in an arc shape. The bottom end of each rotating shaft is connected to an energy dissipation plate. The outer wall of the energy dissipation plate has several energy dissipation guide strips and energy dissipation resistance plates evenly distributed in a vertically intersecting manner for dissipating the collected DC power. The top of each rotating shaft is provided with a transmission gear. The outer wall of the transmission gear is wound with a transmission belt. One of the transmission gears is equipped with a first motor at its top for controlling the angle adjustment of the energy dissipation plate. A pressure sensor is provided at one end of the energy dissipation plate for providing pressure sensing when it is closed.

[0007] Preferably, the main energy dissipation mechanism further includes a winding frame, one end of which is equipped with a second motor, and a cable is wound and connected to the winding frame. One end of the cable is fixedly connected to a connecting rope, and one end of the connecting rope is fixedly connected to an arc-shaped partition plate, which is located on one side of the inner wall of the inner cylinder.

[0008] Preferably, the two ends of the arc-shaped partition plate are movably connected with guide grooves, and guide columns are symmetrically passed through the inner side of the arc-shaped partition plate.

[0009] Preferably, the water collection mechanism includes a water collection tank, the top of which is provided with a top cover, and a plurality of energy dissipation columns are evenly distributed on the inner side of the water collection tank. One end of the water collection tank is fixedly connected to one side of the outer wall of the outer sleeve.

[0010] Preferably, the drainage mechanism includes a drainage trough, the interior of which is provided with a plurality of energy dissipation blocks, and the sides of the energy dissipation blocks are provided with a plurality of anti-impact plates.

[0011] Preferably, a water outlet is provided on the other side of the outer sleeve, and the drainage groove is provided on the outside of the outer sleeve.

[0012] Preferably, the outer wall of the inner cylinder is symmetrically fixedly equipped with partitions, and the partitions are all fixedly connected to the inner wall of the outer cylinder.

[0013] Preferably, the outer wall of the inner cylinder is provided with a plurality of first limiting members, all of which are located on the outside of the transmission belt, and the top of the inner cylinder is symmetrically fixedly provided with second limiting members, which are located on the outside of the transmission belt.

[0014] Preferably, a controller is provided on the outer side of the inner tube, a support frame is fixedly installed on the inner side of the inner tube, and the winding frame is located on the top of the support frame.

[0015] Preferably, the inner cylinder has a drain outlet on its side wall, and several support blocks are evenly distributed inside the drain outlet. The arc-shaped partition plate is located on the side of the drain outlet.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, symmetrical partitions are provided at the connection between the inner and outer cylinders to block the water source, allowing water to enter from the bottom side of the inner cylinder. An energy dissipation plate is provided at this position, and a transmission gear is connected to it with a rotating shaft. A transmission belt is fitted on the outer wall of the transmission gear for synchronous transmission. A first motor drives one of the transmission gears to rotate, thereby driving the whole system to rotate synchronously. This facilitates the simultaneous opening and closing of multiple energy dissipation plates. During the transmission process, the first and second limiting members provide external limiting functions to ensure the stable use of the transmission belt. After the energy dissipation plate is opened, a direct water source enters the interior of the inner cylinder. The opening and closing size is adjustable. The outer wall of the energy dissipation plate is distributed with energy dissipation guide strips and energy dissipation resistance plates to further reduce the hydraulic potential energy, thereby slowing down the water flow speed and further reducing the impact force. When it is necessary to reduce the water flow, the energy dissipation plate can be closed. The outer support frame is a sensor that can monitor and ensure that each energy dissipation plate is in the closed state.

[0017] 2. In this invention, the support frame forms a stable installation support foundation for the winding frame. Combined with the structural design of the cable winding and connecting to the winding frame, one end of the cable is connected to the connecting rope and a curved partition plate is hoisted, forming a linkage control system of the motor, winding frame, cable, and curved partition plate. The forward and reverse rotation of the winding frame, driven by a second motor, can simultaneously achieve the smooth lifting and precise release of the curved partition plate, thereby quickly completing the opening and closing operation of the drain outlet. Compared to the traditional manual opening / closing or hydraulic push rod driving mode of drain outlets, the operation steps are simplified, and the opening / closing response time is further shortened, greatly improving the flexibility and convenience of opening and closing the drain outlet. It can be adjusted in real time according to the actual water release needs. Support blocks are set at key stress points of the drain outlet, providing rigid support for the edge of the drain outlet and surrounding structures, effectively dispersing the load caused by water flow impact during drainage. In actual simulated drainage tests, the drainage outlet structure with support blocks exhibits significantly improved deformation resistance compared to traditional structures without support blocks. Even under long-term impact from high-flow-rate water, it maintains structural stability, preventing opening and closing failures caused by outlet deformation. This provides a reliable guarantee for the stable operation of the entire drainage system. The water discharged from the outlet can be precisely delivered to the drainage mechanism for orderly output. This process effectively controls the flow direction and velocity, achieving reasonable guidance and dissipation of water potential energy. In practical river drainage applications, the impact of water flow on riverbanks is effectively reduced, and the incidence of bank collapse is further decreased compared to traditional drainage methods. Simultaneously, problems such as riverbed siltation and channel deformation caused by disordered water flow impact are significantly improved, optimizing navigation conditions in main waterways and substantially enhancing both navigation safety and efficiency.

[0018] 3. In this invention, a water collection trough is set at the corresponding position of the energy dissipation hole on the outer side of the outer sleeve, and several energy dissipation columns with an interlaced distribution structure are arranged on the inner side of the water collection trough. When the tributary flows out of the energy dissipation hole and enters the water collection trough, the water flow will form multiple collisions, diversions and turbulence effects with the interlaced energy dissipation columns. This can not only effectively reduce the direct impact force of the water flow, but also fully dissipate the potential energy carried by the tributary water flow, thereby reducing the impact of the water flow on the subsequent structure from the source. A drainage trough is specially set up at the outlet, and several energy dissipation blocks are installed on the drainage trough. At the same time, several anti-impact plates are symmetrically arranged on each energy dissipation block, forming a multi-stage energy dissipation system consisting of energy dissipation columns in the water collection trough, energy dissipation blocks in the drainage trough, and anti-impact plates. After the water flow undergoes initial energy dissipation in the water collection trough, it will collide with the energy dissipation blocks and anti-impact plates again when it enters the drainage trough, resulting in deflection and deceleration. This achieves secondary dissipation of the water flow's potential energy, further reducing the water flow velocity and allowing the impact energy of the water flow to be fully released. Through synergistic effects, the impact load of the water flow on the overall device is significantly reduced, effectively avoiding structural wear, deformation, or even damage caused by long-term impact of high-potential-energy water flow. This significantly improves the operational stability of the device under long-term drainage conditions, ensures the safe service life of the entire system, and meets the safety application requirements under high-load drainage scenarios. Attached Figure Description

[0019] Figure 1 This is a perspective view of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention; Figure 2 This is a schematic diagram of another angle of the double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention; Figure 3 This is a partially exploded structural diagram of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention. Figure 4 This is a partial structural schematic diagram of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention. Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the diagram; Figure 6 This is a partial structural schematic diagram of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention; Figure 7 This is a partial cross-sectional schematic diagram of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention. Figure 8 This is a schematic diagram of the structure of a double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to the present invention.

[0020] In the picture: 1. Water collection mechanism; 101. Water collection trough; 102. Top cover; 103. Energy dissipation column; 2. Auxiliary energy dissipation mechanism; 201. Outer sleeve; 202. Energy dissipation hole; 203. Water outlet; 3. Main energy dissipation mechanism; 301. Inner cylinder; 302. Baffle plate; 303. Rotating shaft; 304. Energy dissipation plate; 305. Energy dissipation guide bar; 306. Energy dissipation resistance plate; 307. Transmission gear; 308. Transmission belt; 309. 310. First motor; 311. First limiting component; 312. Controller; 313. Support frame; 314. Winding frame; 315. Second motor; 316. Cable; 317. Connecting rope; 318. Arc-shaped partition plate; 319. Drain outlet; 320. Support block; 321. Second limiting component; 4. Pressure sensor; 401. Drainage mechanism; 402. Drainage trough; 403. Energy dissipation block; 404. Anti-impact plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: As Figures 1-8 As shown, the present invention provides a technical solution: a double-cylinder energy dissipation and anti-scour structure for a cross-flow canal tributary, including a water collection mechanism 1, an auxiliary energy dissipation mechanism 2 is provided at one end of the water collection mechanism 1, a main energy dissipation mechanism 3 is provided inside the auxiliary energy dissipation mechanism 2, a drainage mechanism 4 is provided outside the auxiliary energy dissipation mechanism 2, the auxiliary energy dissipation mechanism 2 includes an outer sleeve 201, a plurality of energy dissipation holes 202 are uniformly opened through one side of the outer sleeve 201, a water outlet 203 is opened on the other side of the outer sleeve 201, and a drainage trough 401 is provided on the outside of the outer sleeve 201; The main energy dissipation mechanism 3 includes an inner cylinder 301. Several rotating shafts 303 are evenly distributed along the inner wall of the inner cylinder 301 in an arc shape. An energy dissipation plate 304 is connected to the bottom end of each rotating shaft 303. Several energy dissipation guide bars 305 and energy dissipation resistance plates 306 are evenly distributed along the outer wall of the energy dissipation plate 304 in a vertically intersecting arrangement for dissipating the collected DC current. A transmission gear 307 is located at the top of each rotating shaft 303. A transmission belt 308 is wound around the outer wall of the transmission gear 307. One of the transmission belts... A first motor 309 is mounted on the top of the gear 307 to control the angle adjustment of the energy dissipation plate 304. A pressure sensor 321 is provided at one end of the energy dissipation plate 304 to provide pressure sensing when it is closed. The main energy dissipation mechanism 3 also includes a winding frame 313. A second motor 314 is provided at one end of the winding frame 313. A cable 315 is wound and connected to the winding frame 313. A connecting rope 316 is fixedly connected to one end of the cable 315. An arc-shaped partition plate is fixedly connected to one end of the connecting rope 316. 317, an arc-shaped partition plate 317 is disposed on one side of the inner wall of the inner cylinder 301. Guide grooves are movably connected to both ends of the arc-shaped partition plate 317. Guide posts symmetrically penetrate the inner side of the arc-shaped partition plate 317. Partition plates 302 are symmetrically fixedly installed on the outer wall of the inner cylinder 301. All partition plates 302 are fixedly connected to the inner wall of the outer cylinder 201. Several first limiting members 310 are distributed on the outer wall of the inner cylinder 301. All first limiting members 310 are disposed on the outer side of the transmission belt 308. The inner cylinder 301... A second limiting member 320 is symmetrically fixedly installed on the top of the inner tube 301. The second limiting member 320 is located on the outside of the transmission belt 308. A controller 311 is provided on the outside of the inner tube 301. A support frame 312 is fixedly installed on the inside of the inner tube 301. A winding frame 313 is located on the top of the support frame 312. A drain outlet 318 is opened on the side wall of the inner tube 301. Several support blocks 319 are evenly distributed inside the drain outlet 318. An arc-shaped partition plate 317 is located on the side of the drain outlet 318.

[0023] In this embodiment, the inner cylinder 301 is nested inside the outer cylinder 201, forming a double-layer cylindrical structure to achieve graded energy dissipation. On one side of the outer wall of the outer cylinder 201, several energy dissipation holes 202 are evenly distributed. These holes 202 are specifically designed to connect to tributary water sources, and through multi-hole diversion, the incoming flow is initially blocked and energy dissipated, effectively dispersing the hydraulic potential energy of the water flow and preventing concentrated impact when tributaries directly converge. Simultaneously, an outlet 203 is correspondingly provided on the other side of the outer cylinder 201, serving as a discharge channel for the water flow after initial energy dissipation, ensuring orderly drainage and forming a complete water circulation path. A symmetrical partition 302 is provided at the connection between the inner cylinder 301 and the outer cylinder 201. This partition 302 effectively prevents the tributary water source from flowing freely, forcibly guiding the water source to enter the core energy dissipation area only from the bottom side of the inner cylinder 301. At the water inlet on the bottom side of the inner cylinder 301, an energy dissipation plate 304 is installed. Each energy dissipation plate 304 is fixedly connected to a transmission gear 307 via a rotating shaft 303, ensuring precise power transmission. A transmission belt 308 is fitted onto the outer wall of each transmission gear 307. The synchronous transmission of all transmission gears is achieved through the linkage of the transmission belt 308. Simultaneously, the first motor 309 provides power output, driving one of the transmission gears 307 to rotate, which in turn drives the remaining transmission gears to rotate synchronously via the transmission belt 308. This centralized drive method can conveniently realize the simultaneous opening and closing of multiple energy dissipation plates 304, greatly improving the equipment control efficiency. A first limiting member 310 and a second limiting member 320 are provided on the outer side of the transmission belt 308, forming a bidirectional limiting structure, which can effectively limit the offset of the transmission belt 308 during operation, preventing slippage, detachment, and other malfunctions, and ensuring the long-term stable operation of the transmission system. When the energy dissipation plate 304 is opened, the direct-flow water, after initial energy dissipation, can smoothly enter the inner cylinder 301. Furthermore, by adjusting the speed and direction of the first motor 309, the opening and closing size of the energy dissipation plate 304 can be flexibly adjusted, achieving precise control of the water flow. In addition, energy dissipation guide strips 305 and energy dissipation resistance plates 306 are evenly distributed on the outer wall of the energy dissipation plate 304. The energy dissipation guide strips 305 can change the direction of water flow, while the energy dissipation resistance plates 306 can directly block the impact of the water flow. The combined effect of these two elements further consumes the hydraulic potential energy of the water flow, significantly slowing down the speed at which the water flows into the inner cylinder 301, thus greatly reducing the impact force of the water flow on the cylinder wall and internal structure. When it is necessary to reduce or block the water flow, the energy dissipation plate 304 can be completely closed by driving the first motor 309. At this time, the outer support frame 312 will activate its sensor detection function to monitor the closing status of each energy dissipation plate 304 in real time, ensuring that all energy dissipation plates are completely closed to prevent leakage or seepage.The controller 311, equipped with a built-in high-performance processor module, can automatically and precisely control the first motor 309, the second motor 314, and various sensing components according to preset water flow parameters, energy dissipation standards, and other instructions. This eliminates the need for manual on-site operation, greatly improving the flexibility and intelligence of the equipment. The support frame 312, in addition to its sensing and monitoring functions, also undertakes the installation and support of the winding frame 313, providing a reliable installation foundation for the winding frame 313 through its robust structural design. A high-strength cable 315 is wound around the winding frame 313, with one end of the cable 315 fixedly connected to a connecting rope 316. The connecting rope 316 corresponds to the hoisting arc-shaped partition plate 317, forming a complete hoisting transmission structure. The second motor 314 drives the winding frame 313 to rotate forward and backward, realizing the winding and unwinding of the cable 315, which in turn moves the arc-shaped partition plate 317 up and down, completing the opening or closing operation of the drain outlet 318, conveniently achieving water source release control. A support block 319 is installed below the drainage outlet 318. Made of high-strength material, the support block 319 provides stable support for the edge structure of the drainage outlet 318, preventing deformation or damage caused by water flow impact and ensuring structural stability during drainage. After secondary energy dissipation by the inner cylinder 301, the water flows out through the drainage outlet 318 and is finally delivered to the drainage mechanism 4 via the outlet 203 on the outer cylinder 201, where it completes the final water output. The entire energy dissipation system, through its tiered energy dissipation and precise control design, effectively reduces the potential energy of the water flow, fundamentally reducing the impact of the water flow on the riverbanks and mitigating the risks of bank collapse and erosion damage. Simultaneously, it provides strong protection for the navigation safety of the main river channel, enhancing the overall safety and stability of the river's operation. Example 2: Figures 1-8 As shown, the water collection mechanism 1 includes a water collection tank 101, a top cover 102 is provided on the top of the water collection tank 101, and a number of energy dissipation columns 103 are evenly distributed on the inner side of the water collection tank 101. One end of the water collection tank 101 is fixedly connected to one side of the outer wall of the outer sleeve 201.

[0024] In this embodiment, the water collection tank 101 is fitted onto the outer wall of the outer sleeve 201, and its arrangement precisely corresponds to the pre-set energy dissipation holes 202 on the outer sleeve 201. Simultaneously, within the inner cavity of the water collection tank 101, several energy dissipation columns 103 are arranged in a staggered array. Through this structural design, when the tributary fluid enters the water collection tank 101 through the energy dissipation holes 202, it will collide and reflux multiple times with the staggered energy dissipation columns 103. This effectively reduces the direct impact force of the water flow, fully dissipates the excess potential energy carried by the tributary water flow, and thus ensures the operational stability of the entire fluid diversion system.

[0025] Example 3: As Figures 1-8As shown, the drainage mechanism 4 includes a drainage trough 401, and a number of energy dissipation blocks 402 are distributed inside the drainage trough 401. A number of anti-impact plates 403 are evenly distributed on both sides of the energy dissipation blocks 402.

[0026] In this embodiment, the drainage channel 401 is positioned at the core discharge location of the outlet 203. Simultaneously, within the internal cavity of the drainage channel 401, several regularly arranged energy dissipation blocks 402 are arranged in an array. Crucially, several anti-collision plates 403 with flow-guiding and buffering functions are symmetrically fixed to both ends of each energy dissipation block 402. This structural design allows for multiple impacts, diversions, and turbulence effects on the high-speed water flow created by the energy dissipation blocks 402 throughout the drainage process. Combined with the flow-guiding and buffering effect of the anti-collision plates 403, this achieves a stepped energy dissipation of the water flow, effectively reducing the impact velocity and kinetic energy intensity of the water flow. This fully and efficiently dissipates the potential energy of the water flow, significantly reducing the impact load on the drainage channel 401 and downstream pipes and components, thus ensuring the long-term stability and safety of the entire drainage system from a structural perspective.

[0027] In this invention, the double-cylinder energy dissipation and anti-scour structure for a cross-flow canal tributary is used such that the water collection trough 101 is precisely aligned with the pre-set energy dissipation holes 202 on the outer side of the outer sleeve 201, and the tributary water source enters the water collection trough 101 through the energy dissipation holes 202. Because the inner side of the water collection trough 101 is provided with several energy dissipation columns 103 arranged in a staggered pattern, the water flow within the water collection trough 101 will experience multiple collisions, diversions, and turbulence effects with the energy dissipation columns 103. During this process, the initial impact force of the water flow is significantly weakened, and some of the potential energy carried by the tributary water flow is initially dissipated. The water flow that has completed initial energy dissipation enters the interlayer space between the outer sleeve 201 and the inner sleeve 301 through the energy dissipation holes 202 on the side wall of the outer sleeve 201. The distributed layout of the energy dissipation holes 202 can effectively disperse the concentrated impact force of the water flow, avoiding excessive local hydraulic load. Symmetrical baffles 302 are arranged at the connection between the outer sleeve 201 and the inner sleeve 301. The baffles 302 act as a barrier to block water flow, forcing water to enter the inner sleeve 301 from the bottom side. Energy dissipation plates 304 are arranged on the bottom side of the inner sleeve 301. The energy dissipation plates 304 are connected to transmission gears 307 via a rotating shaft 303, and each transmission gear 307 has a transmission belt 308 fitted on its outer wall, forming a synchronous transmission link. When the first motor 309 drives one of the transmission gears 307 to rotate, power is transmitted to all transmission gears 307 via the transmission belt 308, thereby driving all energy dissipation plates 304 to synchronously complete the opening and closing action. During this process, the first limiting member 310 and the second limiting member 320 limit and guide the transmission belt 308, effectively preventing the transmission belt 308 from falling off or shifting, ensuring the stability and reliability of the transmission process. The opening angle of the energy dissipation plate 304 can be flexibly adjusted to control the water flow rate entering the inner cylinder 301. Simultaneously, energy dissipation guide strips 305 and energy dissipation resistance plates 306 are arranged on the outer wall of the energy dissipation plate 304. When water flows through the energy dissipation plate 304, the energy dissipation guide strips 305 divert and guide the water flow, while the energy dissipation resistance plates 306 further increase the water flow resistance, achieving secondary dissipation of the water flow's potential energy. This significantly slows down the speed at which the water enters the inner cylinder 301, reducing the impact force of the water flow on the internal structure of the inner cylinder 301. When it is necessary to reduce the water flow rate entering the inner cylinder 301, the energy dissipation plate 304 can be closed. The outer support frame 312 can monitor the closing status of the energy dissipation plate 304 to ensure that all energy dissipation plates 301 are in a reliably closed position. The entire inner cylinder energy dissipation control system is completed through the controller 311 in conjunction with the internal processor module. Parameters can be preset according to actual drainage needs to achieve automated and precise control of the opening and closing of the energy dissipation plate 304, improving operational flexibility and response efficiency. The support frame 312 also serves as the installation support for the winding frame 313. Cables 315 are wound and connected to the winding frame 313, with one end of the cable 315 connected to the arc-shaped partition plate 317 via a connecting rope 316, forming a hoisting control structure.When the second motor 314 drives the winding frame 313 to rotate in both directions, the cable 315 can be wound and unwound, thereby driving the arc-shaped partition plate 317 to be smoothly lifted or lowered, thus completing the rapid opening and closing of the drain outlet 318 to meet the water release requirements under different working conditions. A support block 319 is configured at the drain outlet 318, which provides rigid support to the edge and surrounding structure of the drain outlet 318, effectively dispersing the load caused by the water flow impact during drainage, preventing deformation and damage to the drain outlet 318 due to long-term water flow impact, and ensuring the structural stability and service life of the drain outlet 318. The water flow, after being dissipated by the inner cylinder 301, enters the outer cylinder 201 through the drain outlet 318, and is then transported to the drainage mechanism 4 for centralized output through the pre-set outlet 203 on the other side of the outer cylinder 201. The drainage channel 401 of the drainage mechanism 4 is precisely connected to the outlet 203. Several energy dissipation blocks 402 are arranged on the drainage channel 401, and several anti-collision plates 403 are symmetrically arranged on each energy dissipation block 402, forming a multi-stage energy dissipation structure at the end. When the water flows into the drainage channel 401 through the outlet 203, it will collide with the energy dissipation blocks 402 and the anti-collision plates 403 in sequence and be deflected. The remaining potential energy of the water flow is further dissipated, the flow velocity is significantly reduced, and finally it is discharged in a low potential energy and low flow velocity state.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-cylinder energy dissipation and scour prevention structure for a tributary of a cross-flow canal, comprising a water collection mechanism (1), characterized in that: An auxiliary energy dissipation mechanism (2) is provided at one end of the water collection mechanism (1), a main energy dissipation mechanism (3) is provided inside the auxiliary energy dissipation mechanism (2), and a drainage mechanism (4) is provided outside the auxiliary energy dissipation mechanism (2). The auxiliary energy dissipation mechanism (2) includes an outer sleeve (201), and a plurality of energy dissipation holes (202) are evenly opened through one side of the outer sleeve (201). The main energy dissipation mechanism (3) includes an inner cylinder (301). The inner wall of the inner cylinder (301) is evenly distributed with several rotating shafts (303) in an arc shape. The bottom end of the rotating shaft (303) is connected to an energy dissipation plate (304). The outer wall of the energy dissipation plate (304) is evenly distributed with several energy dissipation guide strips (305) and energy dissipation resistance plates (306) in a vertically intersecting arrangement for dissipating the collected DC current. The top of the rotating shaft (303) is provided with a transmission gear (307). The outer wall of the transmission gear (307) is wound with a transmission belt (308). The top of one of the transmission gears (307) is equipped with a first motor (309) for controlling the angle adjustment of the energy dissipation plate (304). One end of the energy dissipation plate (304) is provided with a pressure sensor (321) for providing pressure sensing when closed.

2. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 1, characterized in that: The main energy dissipation mechanism (3) also includes a winding frame (313), one end of which is provided with a second motor (314), a cable (315) is wound and connected on the winding frame (313), one end of which is fixedly connected with a connecting rope (316), and one end of which is fixedly connected with an arc-shaped partition plate (317), which is located on one side of the inner wall of the inner cylinder (301).

3. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 2, characterized in that: The two ends of the arc-shaped partition plate (317) are movably connected with guide grooves, and guide columns are symmetrically passed through the inner side of the arc-shaped partition plate (317).

4. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 1, characterized in that: The water collection mechanism (1) includes a water collection tank (101), a top cover (102) is provided on the top of the water collection tank (101), and a number of energy dissipation columns (103) are evenly distributed on the inner side of the water collection tank (101). One end of the water collection tank (101) is fixedly connected to one side of the outer wall of the outer sleeve (201).

5. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 1, characterized in that: The drainage mechanism (4) includes a drainage trough (401), and a number of energy dissipation blocks (402) are distributed inside the drainage trough (401). A number of anti-impact plates (403) are evenly distributed on both sides of the energy dissipation blocks (402).

6. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 5, characterized in that: A water outlet (203) is provided on the other side of the outer sleeve (201), and the drainage groove (401) is provided on the outside of the outer sleeve (201).

7. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 1, characterized in that: The outer wall of the inner cylinder (301) is symmetrically fixedly equipped with partitions (302), and the partitions (302) are all fixedly connected to the inner wall of the outer cylinder (201).

8. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 1, characterized in that: The outer wall of the inner cylinder (301) is provided with a number of first limiting members (310), all of which are located on the outside of the transmission belt (308). The top of the inner cylinder (301) is symmetrically fixed with second limiting members (320), which are located on the outside of the transmission belt (308).

9. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 2, characterized in that: A controller (311) is provided on the outside of the inner tube (301), a support frame (312) is fixedly installed on the inside of the inner tube (301), and a winding frame (313) is located on the top of the support frame (312).

10. The double-cylinder energy dissipation and scour prevention structure for a cross-flow canal tributary according to claim 2, characterized in that: The inner cylinder (301) has a drain outlet (318) on its side wall. Several support blocks (319) are evenly distributed inside the drain outlet (318). The arc-shaped partition plate (317) is located on the side of the drain outlet (318).

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