A water blocking device suitable for adiabatic water assisted power generation

Abstract

The utility model discloses a kind of water blocking devices suitable for adiabatic water auxiliary power generation, belong to hydroelectric equipment technical field.It includes steel plate combined dam and two groups of symmetrically arranged support retraction components;Support retraction component includes limiting pier, anchoring mechanism and retraction mechanism, limiting pier is buried in river channel bottom and top is provided with rotating shaft seat, steel plate combined dam bottom is movably connected with rotating shaft seat;Anchoring mechanism is arranged along water flow direction with limiting pier and is fixed by connecting rod;Retraction mechanism's hoist and winch is guided steel wire rope by pulley block group, and synchronous retraction steel wire rope realizes the lifting of steel plate combined dam and is set up and is relaxed and is laid down.This device can flexibly switch "set up water blocking energy gathering" and "relaxed and is laid down water flow dredging" state, give consideration to non-flood season adiabatic water power generation power demand and flood season water flow dredging demand, improve adiabatic water power generation system operating stability and efficiency, can also integrated power generation structure, further improve adiabatic water resource energy utilization efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydropower equipment, specifically relating to a water-blocking device suitable for auxiliary power generation in horizontal water flow. Background Technology

[0002] Hydropower has become one of the world's most important power generation methods due to its characteristics of resource recycling, cleanliness, environmental friendliness, and abundant resources. Among them, the development and utilization of hydro potential energy has a history of over a century, but the hydro potential energy resources available for further development are now relatively limited; while the reserves of flowing water power generation are abundant, more than ten thousand times that of hydro potential energy, and vigorously developing flowing water power generation will inevitably promote the transformation of the power sector.

[0003] As an important form of clean and renewable energy utilization, advection hydropower has been widely used in areas with abundant water resources due to its advantages such as minimal impact on the natural environment and low operating costs, becoming a key force in supplementing conventional power supply. During the flood season, influenced by abundant rainfall, the river channels have sufficient water volume, stable water flow velocity, and suitable water pressure. At this time, advection hydropower plants can fully receive the kinetic energy transferred by the water flow, maintaining a high level of power generation efficiency and stably exerting their energy conversion efficiency, providing effective support for regional power demand.

[0004] However, the operational efficiency of advection hydropower systems is highly dependent on natural water flow conditions, and the technical bottlenecks they face are particularly prominent during the non-flood season. The significant reduction in rainfall during the non-flood season directly leads to a substantial decrease in river water volume and a slowdown in water flow velocity, which in turn significantly reduces the water pressure acting on power generation devices (such as turbine generator sets)—this change in natural conditions directly weakens the power source driving the power generation devices. More critically, traditional advection hydropower systems generally lack targeted, flexible water-retaining structures that can adapt to non-flood season water flow conditions: some systems have no water-retaining devices at all, failing to effectively concentrate the dispersed, low-speed non-flood season water flow, making it difficult to concentrate the kinetic energy of the water onto the power generation components; other systems, while equipped with water-retaining structures, are mostly fixed, non-adjustable rigid designs. During the flood season, this not only easily causes river backlog but may also damage the water-retaining structures due to excessive water flow impact, thus affecting the safe and stable operation of the power generation system.

[0005] To address the aforementioned technical contradictions of "insufficient water collection during non-flood seasons and poor drainage during flood seasons," this utility model designs a flexible, adjustable, and tiltable water-assisted power generation water-blocking device to adapt to water flow conditions in different hydrological cycles and ensure the continuous and efficient operation of the water-assisted power generation system. Utility Model Content

[0006] The purpose of this invention is to overcome the technical defects of the existing water-blocking structure in the horizontal flow power generation system, which is characterized by "poor adaptability and single function". It provides a water-blocking device suitable for auxiliary power generation in horizontal flow. Through the structural design of "rotatable dam body + synchronous support and retraction components", the water-blocking device can flexibly switch between the two states of "standing up to block water" and "lowering down to guide water", taking into account the needs of water accumulation and pressure increase during the non-flood season and water flow guidance during the flood season, thereby improving the operational stability and power generation efficiency of the horizontal flow power generation system.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A water-blocking device suitable for auxiliary power generation in horizontal flow water includes a steel plate composite dam and two sets of symmetrically arranged support and retraction components;

[0009] The two sets of support and retraction components are respectively located at both ends of the steel plate composite dam along its length, and the two sets of support and retraction components have the same structure and operate synchronously.

[0010] The support retraction assembly includes a limiting block, an anchoring mechanism, and a retraction mechanism;

[0011] The limiting pier is made of cast concrete and buried at the bottom of the river channel; the top of the limiting pier is provided with a pivot seat; the bottom of the steel plate composite dam is movably connected to the limiting pier through the corresponding pivot seats;

[0012] The anchoring mechanism is located at the bottom of the river channel and is set on the side of the steel plate composite dam opposite to the direction of the limiting pier; the anchoring mechanism and the corresponding limiting pier are arranged in the same straight line along the direction of water flow; the anchoring mechanism is provided with several connecting rods, and the anchoring mechanism is fixedly connected to the corresponding limiting pier through the connecting rods.

[0013] The pulling mechanism includes a hoist, a pulley block, and a wire rope;

[0014] The hoist is fixedly installed on the riverbank and adapted to the position of the corresponding anchoring mechanism; the pulley block includes at least two fixed pulleys, which are respectively located on the top of the corresponding anchoring mechanism; a steel wire rope is wound on the drum of the hoist, one end of the steel wire rope is wound and fixed to the drum, and the other end is guided by the pulley block and fixedly connected to the corresponding end of the top of the steel plate composite dam; the hoists of the two sets of pulling mechanisms rotate synchronously in both directions to pull up and down the steel wire rope, so as to realize the synchronous lifting and lowering of the steel plate composite dam.

[0015] The above technical solution has the following advantages: This water-blocking device, applicable to auxiliary power generation in horizontal flow, works in conjunction with a steel plate dam using two sets of identical structural and synchronously operating support and retraction components. This ensures that the steel plate dam can be rotated around the limit pier pivot seat by synchronously releasing and retracting the steel wire rope guided by the top pulley group of the anchoring mechanism using the hoist. This satisfies the core requirements of erecting the dam to block and collect water flow and increase water pressure to ensure power generation during the non-flood season, and lowering it during the flood season to divert water flow and avoid backwater impact. Furthermore, the design of the anchoring mechanism and the limit pier arranged in a straight line along the water flow direction and fixed by connecting rods, combined with a symmetrical and synchronous force mode, enhances the impact resistance and stability. At the same time, the pulley group reduces the load on the hoist, the shore hoist is easy to maintain, and the core components use conventional materials that are easy to promote. This comprehensively improves the operating efficiency, reliability, and adaptability of the horizontal flow power generation system.

[0016] As a further improvement to the above technical solution, the steel plate composite dam includes an upper circular pipe, a steel plate, and a lower circular pipe; the upper circular pipe is a solid structure and is fixed to the top of the steel plate, and the lower circular pipe is a hollow structure and is fixed to the bottom of the steel plate, with the upper and lower circular pipes arranged in parallel.

[0017] The above technical solution has the following advantages: By adopting a parallel composite structure of "solid upper circular tube + steel plate + hollow lower circular tube" for the steel plate composite dam, on the one hand, the solid upper circular tube ensures that the rigidity of the top structure of the dam is strengthened, providing a stable connection foundation for the wire rope of the pulling mechanism, and resisting the impact and tension of water flow when blocking water, thus avoiding deformation of the top of the dam; the hollow structure of the lower circular tube ensures that the weight at the bottom is reduced. The parallel arrangement of the two optimizes the weight distribution of the steel plate composite dam, making the erection process more stable and reducing the load on the pulling mechanism, while also ensuring the regularity of the water-blocking surface of the steel plate, which is conducive to the gathering or diversion of water flow, and improves the flexibility of the steel plate composite dam's overturning adjustment and the structural reliability.

[0018] As a further improvement to the above technical solution, the outer wall of the upper circular tube is provided with pull ears corresponding to the positions of the two sets of support and pulling components; the pull ears form a 30° angle with the vertical direction of the steel plate composite dam; and the pull ears are provided with through holes for connecting the corresponding steel wire ropes; the end of the steel wire rope away from the hoist is fixedly connected to the pull ear through the through hole, so that the two sets of pulling mechanisms can stably lift the steel plate composite dam upright through the pull ears.

[0019] The above technical solution has the following advantages: By designing the pull lugs at a 30° angle to the vertical direction of the steel plate composite dam, the force direction during wire rope lifting is made more reasonable, optimizing the force distribution effect and avoiding stress concentration at the pull lugs and connection points. At the same time, the pull lugs are stably connected to the wire rope through through holes, ensuring that when the two sets of lifting mechanisms are lifted synchronously, the steel plate composite dam can be smoothly and efficiently rotated and erected around the pivot seat, improving the stability and operational efficiency of the lifting process and providing a guarantee for the reliable realization of the water interception and flow concentration function.

[0020] As a further improvement to the above technical solution, the bottom of the lower circular tube is fixed with a connecting part adapted to the rotating shaft seat, and the steel plate composite dam is movably hinged to the rotating shaft seat through the connecting part.

[0021] The above technical solution has the following advantages: By adapting the connecting part at the bottom of the lower circular tube to the rotating shaft seat and forming a movable hinge, a stable and flexible rotation fulcrum is provided for the steel plate composite dam. This ensures that the steel plate composite dam can smoothly complete the erection and lowering rotation around the fulcrum under the action of the pulling mechanism. It also disperses the stress generated by the impact of water flow and its own weight through the adaptable structure, avoiding damage to the connecting parts due to concentrated force. At the same time, it ensures the alignment accuracy during the rotation process, provides a structural basis for the synchronous operation of the two sets of support pulling components, and further improves the reliability and durability of the water-blocking device adjustment.

[0022] As a further improvement to the above technical solution, the anchoring mechanism includes a pier and an anchor rod;

[0023] The anchor pier is buried at the bottom of the river channel. The anchor pier is set on the side of the steel plate composite dam opposite to the limiting pier in the direction of erection. One end of the anchor rod is fixed to the anchor pier by pouring, and the other end is driven into the river channel foundation.

[0024] The above technical solution has the following advantages: In the anchoring mechanism, the anchor pier is buried at the bottom of the river channel to provide a foundation for supporting the pull-up components. One end of the anchor rod is fixed to the anchor pier by pouring concrete, and the other end extends into the river channel foundation, forming a deep anchoring system of "pier-rod-foundation". This system can effectively transfer the water flow impact force and the pulling reaction force of the pull-up mechanism to the foundation when the steel plate composite dam is erected, greatly enhancing the pull-out resistance and overturning resistance of the anchoring mechanism. At the same time, the anchor pier is set up against the limiting pier in the direction of the steel plate composite dam erection, which can specifically resist the main force in that direction. Combined with the fixed connection with the limiting pier, it further strengthens the stability of the overall structure and provides a solid foundation for the safe operation of the water-blocking device under different water flow conditions.

[0025] As a further improvement to the above technical solution, one end of the connecting rod is fixed to the pier by casting, and the other end is welded to the corresponding limiting pier; the fixed pulley of the pulley block is fixedly installed on the top of the pier by a bracket.

[0026] The above technical solution has the following advantages: By using a dual connection method—fixing one end of the connecting rod to the pier and the other end to the limiting pier—it ensures that the pier and the limiting pier are firmly connected as a whole, forming a rigid force-bearing system. This effectively transmits the load generated by the water flow impact and the pulling operation, preventing relative displacement due to uneven force distribution and significantly enhancing the overall rigidity of the support structure. The pulley block is fixed to the top of the pier by a bracket, which not only ensures the flatness and stability of the pulley installation by relying on the stable foundation of the pier, but also makes the force direction of the wire rope more consistent with the lifting path, reducing additional friction and stress loss caused by pulley swaying. This ensures that the pulling mechanism accurately and synchronously lifts the steel plate composite dam, further improving the reliability and durability of the water-blocking device.

[0027] As a further improvement to the above technical solution, the upper circular tube is also provided with a lifting lug, which is fixedly installed against the top of the upper circular tube.

[0028] The above technical solution offers the following advantages: By installing lifting lugs at the top of the upper circular pipe, a convenient lifting force point is provided for the installation, maintenance, and transportation of the steel plate composite dam. Its placement near the top of the upper circular pipe balances the center of gravity of the steel plate composite dam during lifting, preventing tilting or collisions caused by a shift in the center of gravity, and ensuring safe and stable lifting operations. Simultaneously, it simplifies the lifting process during construction and maintenance, reduces reliance on specialized lifting tools, and improves the efficiency of device installation and subsequent maintenance, providing practical assurance for the ease of construction and operation of the water-retaining device.

[0029] As a further improvement to the above technical solution, the water-facing side of the steel plate is also provided with reinforcing ribs, which are distributed in a grid pattern.

[0030] The above technical solution has the following advantages: By adding grid-like reinforcing ribs to the water-facing side of the steel plate, a three-dimensional stress-bearing frame is formed through the staggered distribution of ribs, which evenly distributes the pressure generated by the water flow impact to the entire surface of the steel plate. This significantly improves the steel plate's resistance to bending and deformation, and avoids damage to the steel plate caused by excessive local stress. At the same time, while enhancing the structural strength and rigidity of the steel plate, the grid structure does not excessively increase the overall weight, ensuring that the steel plate composite dam can still flexibly complete the flipping action under the action of the pulling mechanism. This further extends the service life of the water-blocking device, enabling it to maintain stable water-blocking or drainage performance even under complex working conditions such as strong water flow impact during the flood season. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 A side view of the steel plate composite dam in the erected state as provided in Embodiment 1 of this utility model;

[0033] Figure 2 A side view of the steel plate composite dam in the collapsed state as provided in Embodiment 1 of this utility model;

[0034] Figure 3 This is a front view of the steel plate composite dam erection and river channel assembly provided in Embodiment 1 of this utility model;

[0035] Figure 4 This is a top view of the steel plate composite dam erection and river channel assembly provided in Embodiment 1 of this utility model;

[0036] Figure 5 This is a top view of the steel plate composite dam being lowered and assembled in the river channel, as provided in Embodiment 1 of this utility model.

[0037] Figure 6 This is a schematic diagram of the assembly of the water-blocking device and the power generation device provided in Embodiment 2 of this utility model.

[0038] Explanation of reference numerals in the attached figures;

[0039] 1-Steel plate composite dam; 11-Upper circular pipe; 111-Lifting lug; 12-Steel plate; 13-Lower circular pipe; 14-Pull lug; 21-Limiting pier; 211-Rotating shaft seat; 22-Anchoring mechanism; 221-Connecting rod; 222-Stabilizing pier; 223-Anchor bolt; 23-Tightening mechanism; 231-Gate hoist; 232-Pulley block; 233-Wire rope; 3-Side pier; 31-Limiting component; 4-Drainage channel; 5-Water turbine; 6-Generator. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] Example 1

[0046] like Figures 1 to 5 As shown, a water-blocking device suitable for auxiliary power generation in horizontal flow includes a steel plate composite dam 1 and two sets of symmetrically arranged support and retraction components.

[0047] Two sets of support and retraction components are respectively located at both ends of the steel plate composite dam 1 along its length, and the two sets of support and retraction components have the same structure and move synchronously;

[0048] The support retraction assembly includes a limiting block 21, an anchoring mechanism 22, and a retraction mechanism 23;

[0049] The limiting pier 21 is made of C30 concrete and buried at a depth of not less than 1.5m below the bottom of the river channel to ensure load-bearing stability; and the total length of the two sets of limiting piers 21 is adapted to the width of the river channel; the top of the limiting pier 21 is provided with a pivot seat 211; the bottom of the steel plate composite dam 1 corresponds to the positions of the two sets of support and pull-out components, and is movably connected to the limiting pier 21 through the corresponding pivot seats 211.

[0050] The anchoring mechanism 22 is located at the bottom of the river channel and is set on the side of the limiting pier 21 corresponding to the direction of the steel plate composite dam 1 being erected. The anchoring mechanism 22 and the corresponding limiting pier 21 are arranged in the same straight line along the direction of water flow. The anchoring mechanism 22 is provided with two sets of connecting rods 221, and the anchoring mechanism 22 is fixedly connected to the corresponding limiting pier 21 through the two sets of connecting rods 221.

[0051] The hoisting mechanism 23 includes a hoist 231, a pulley block 232, and a wire rope 233;

[0052] The hoist 231 is fixedly installed on the riverbank and is adapted to the position of the corresponding anchoring mechanism 22; the pulley block 232 includes two fixed pulleys, which are respectively located on the top of the corresponding anchoring mechanism 22; a steel wire rope 233 is wound on the drum of the hoist 231, one end of the steel wire rope 233 is wound and fixed to the drum, and the other end is guided by the pulley block 232 and fixedly connected to the corresponding end of the top of the steel plate composite dam 1; the hoist 231 of the two sets of pulling mechanisms 23 synchronously rotates forward and reverse to pull up and release the steel wire rope 233, so as to realize the synchronous lifting and lowering of the steel plate composite dam 1;

[0053] By cooperating with two sets of structurally consistent and synchronously operating support and retraction components with the steel plate composite dam 1, it is ensured that the steel wire rope 233, guided by the top pulley block 232 of the anchoring mechanism 22, can be synchronously retracted and released by the hoist to drive the steel plate composite dam 1 to rotate around the pivot seat 211 of the limiting pier 21. This meets the core requirements of erecting the dam to impound water and gather water flow and increase water pressure to ensure power generation during the non-flood season, and lowering it to divert water flow and avoid water backlog during the flood season. Furthermore, the design of the anchoring mechanism 22 and the limiting pier 21 arranged in a straight line along the water flow direction and fixed by the connecting rod 221, combined with the symmetrical and synchronous force mode, enhances the impact resistance and stability. At the same time, the pulley block 232 reduces the load on the hoist 231, and the shore hoist 231 is easy to maintain. The core components use conventional materials that are easy to promote, thus comprehensively improving the operating efficiency, reliability, and adaptability of the horizontal flow power generation system.

[0054] In this embodiment, the steel plate composite dam 1 includes an upper circular pipe 11, a steel plate 12, and a lower circular pipe 13;

[0055] Steel plate 12 is made of Q235 steel plate with a thickness of 10mm and a width that matches the river channel. Upper circular pipe 11 is made of solid Q355B steel with a diameter of 150mm and a length consistent with steel plate 12. It is fixed to the top of steel plate 12 by full welding. Lower circular pipe 13 is made of hollow Q355 steel with a diameter of 200mm, a wall thickness of 10mm, and a length consistent with steel plate 12. It is fixed to the bottom of steel plate 12 by full welding, and the axes of upper circular pipe 11 and lower circular pipe 13 are parallel.

[0056] By adopting a parallel composite structure of "solid upper circular tube 11 + steel plate 12 + hollow lower circular tube 13" for the steel plate composite dam 1, on the one hand, the solid upper circular tube 11 ensures that the rigidity of the top structure of the dam is strengthened, providing a stable connection foundation for the steel wire rope 233 of the pulling mechanism 23, and resisting the impact and tension of water flow when blocking water, thus avoiding deformation of the top of the dam. The hollow structure of the lower circular tube 13 ensures that the weight at the bottom is reduced. The parallel arrangement of the two optimizes the weight distribution of the steel plate composite dam 1, making the erection process more stable and reducing the load on the pulling mechanism 23. It also ensures the regularity of the water-blocking surface of the steel plate 12, which is conducive to the gathering or diversion of water flow, and improves the flexibility of the steel plate composite dam 1 in terms of tilting and adjustment and the structural reliability.

[0057] In this embodiment, the outer wall of the upper circular tube 11 is provided with pull ears 14 corresponding to the positions of the two sets of support and retraction components. The pull ears 14 form a 30° angle with the vertical direction of the steel plate composite dam 1. The pull ears 14 are provided with through holes for connecting the corresponding steel wire ropes 233. The end of the steel wire rope 233 away from the hoist 231 is fixedly connected to the pull ears 14 through the through holes, so that the two sets of retraction mechanisms 23 can stably lift the steel plate composite dam 1 upright through the pull ears 14.

[0058] By designing the pull lug 14 at a 30° angle to the vertical direction of the steel plate composite dam 1, the force direction of the wire rope 233 during lifting is made more reasonable, optimizing the force distribution effect and avoiding stress concentration in the pull lug 14 and the connection parts. At the same time, the pull lug 14 is stably connected to the wire rope 233 through the through hole, which ensures that when the two sets of pulling mechanisms are lifted synchronously, the steel plate composite dam 1 can be smoothly and efficiently rotated and stood up around the rotating shaft seat 211, improving the stability and operational efficiency of the lifting process and providing a guarantee for the reliable realization of the water blocking and flow gathering function.

[0059] In this embodiment, the bottom of the lower circular tube 13 is fixed with a connecting part that is adapted to the rotating shaft seat 211, and the steel plate composite dam 1 is movably hinged to the rotating shaft seat 211 through the connecting part;

[0060] By adapting the connecting part at the bottom of the lower circular tube 13 to the rotating shaft seat 211 to form a movable hinge, a stable and flexible rotation fulcrum is provided for the steel plate composite dam 1. This ensures that the steel plate composite dam 1 can smoothly complete the standing and falling over turning action around the fulcrum under the action of the pulling mechanism 23. At the same time, the adaptive structure can disperse the stress generated by the water flow impact and its own weight, avoiding damage to the connecting parts due to stress concentration. It also ensures the alignment accuracy during the turning process, provides a structural basis for the synchronous operation of the two sets of support pulling components, and further improves the reliability and durability of the water-blocking device adjustment.

[0061] In this embodiment, the anchoring mechanism 22 includes a pier 222 and an anchor rod 223;

[0062] The anchor 222 is buried at the bottom of the river channel. The anchor 222 is set on the side of the steel plate composite dam 1 facing the limit pier 21. One end of the anchor 223 is fixed to the anchor 222 by pouring, and the other end is driven into the river channel foundation for ≥2m with a tensile strength of ≥50kN.

[0063] The anchor 222 is buried at the bottom of the river channel and close to the side of the limiting pier 21 corresponding to the direction of the dam's erection. It provides a stable installation platform for the pulley block 232 and can directly bear the tension and water flow impact reaction force transmitted by the pulling mechanism 23. Three sets of anchor rods 223 are installed, with one end fixed to the anchor 222 by the concrete pouring and the other end driven into the river channel foundation to a depth of ≥2m. The anchor rods have a tensile strength of ≥50kN, which can efficiently transmit the force borne by the anchor 222 to the deep stable ground. The foundation is fixed to prevent displacement or overturning caused by strong water flow impact when the anchor 222 is fixed by its own weight alone. The design also matches the arrangement of the anchor 222 and the limiting anchor 21 along the water flow direction, making the force transmission path more direct and uniform, further offsetting the impact of water flow on the dam body and support components. Ultimately, it provides a solid anchoring foundation for the stable driving of the dam body to overturn by the pulling mechanism 23 and for resisting the impact of water flow when the dam body blocks water, significantly improving the overall risk resistance and long-term operational reliability of the device.

[0064] In this embodiment, one end of the connecting rod 221 is cast and fixed to the pier 222, and the other end is welded and fixed to the corresponding limiting pier 21; the fixed pulley of the pulley block 232 is fixedly installed on the top of the pier 222 by a bracket;

[0065] By using a dual connection method—one end of the connecting rod 221 is cast and fixed to the anchor 222, and the other end is welded and fixed to the limiting pier 21—the anchor 222 and the limiting pier 21 are firmly connected as a whole, forming a rigid force-bearing system. This effectively transmits the load generated by the water flow impact and the pulling operation, preventing relative displacement due to uneven force distribution and significantly enhancing the overall rigidity of the support structure. The pulley block 232 is fixed to the top of the anchor 222 by a bracket. This not only ensures the flatness and stability of the pulley installation by relying on the stable foundation of the anchor 222, but also makes the force direction of the wire rope 233 more consistent with the lifting path, reducing additional friction and stress loss caused by pulley swaying. This ensures that the pulling mechanism 23 accurately and synchronously pulls the steel plate composite dam 1, further improving the reliability and durability of the water-blocking device.

[0066] In this embodiment, the upper round tube 11 is also provided with a lifting lug 111, which is fixedly installed near the top of the upper round tube 11;

[0067] By using lifting lugs 111 at the top of the upper circular pipe 11, a convenient lifting force point is provided for the installation, maintenance, and transportation of the steel plate composite dam 1. The lugs' position near the top of the upper circular pipe 11 balances the center of gravity of the steel plate composite dam 1 during lifting, preventing tilting or collisions caused by a shift in the center of gravity, and ensuring safe and stable lifting operations. Simultaneously, it simplifies the lifting process during construction and maintenance, reduces reliance on specialized lifting tools, and improves the efficiency of device installation and subsequent maintenance, providing practical assurance for the ease of construction and operation of the water-retaining device.

[0068] In this embodiment, the water-facing surface of the steel plate 12 is also provided with reinforcing ribs, which are distributed in a grid pattern;

[0069] By adding grid-like reinforcing ribs to the water-facing side of the steel plate 12, a three-dimensional stress-bearing frame is formed through the staggered ribs. This evenly distributes the pressure generated by the water flow impact to the entire surface of the steel plate 12, significantly improving the bending and deformation resistance of the steel plate 12 and avoiding damage to the steel plate due to excessive local stress. At the same time, while enhancing the strength and rigidity of the steel plate structure, the grid structure does not excessively increase the overall weight, ensuring that the steel plate composite dam 1 can still flexibly complete the flipping action under the action of the pulling mechanism 23. This further extends the service life of the water-blocking device and enables it to maintain stable water-blocking or drainage performance under complex working conditions such as strong water flow impact during the flood season.

[0070] In this embodiment, the side piers 3 at the river mouth are also provided with limiting components 31. The limiting components 31 are set in two sets and are respectively set at both ends of the top of the steel plate composite dam 1. The limiting components 31 are used to limit the rotation trajectory of the steel plate composite dam 1 to ensure that the steel plate composite dam 1 can rotate from 0 to 90° relative to the limiting pier 21, and to ensure that the steel plate composite dam 1 is perpendicular to the water flow direction when it is rotated to 90°, so as to ensure the effectiveness of water blocking. It should be noted that the limiting components 31 are conventional technology in the art and will not be described in detail.

[0071] In this embodiment, the gate hoist 231 is an electrically controlled gate hoist, and the two sets of gate hoists 231 are equipped with a synchronous control module. The synchronous control module can realize the synchronous forward and reverse rotation of the two sets of gate hoists 231 through a remote control terminal or on-site operation panel, and precisely control the winding and unwinding length of the two sets of wire ropes 233 to ensure that the two ends of the steel plate composite dam 1 rotate synchronously, so as to avoid the steel plate composite dam 1 from twisting and deforming due to the inconsistent rotation speed at both ends. It should be noted that the gate hoist 231 and the synchronous control module are conventional technologies in the field and will not be described in detail.

[0072] In this embodiment, the height of the limiting pier 21 is adapted to the distance from the bottom of the river to the normal water level during the non-flood season, ensuring that when the steel plate composite dam 1 is erected to 90°, its top is at least 10cm higher than the normal water level during the non-flood season, thus effectively blocking water; and the width of the limiting pier 21 is not less than the thickness of the steel plate composite dam 1, to avoid lateral displacement during the overturning process of the steel plate composite dam 1 and to ensure the stability of the device operation.

[0073] Basic working principle:

[0074] During non-flood season, water interception and flow concentration are achieved by activating two sets of hoists 231 in a synchronous forward rotation via the synchronous control module. The drum winds up the steel wire rope 233, which is then guided by the pulley block 232 and lifted by the lug 14 to raise the top of the steel plate dam 1. This causes the steel plate dam 1 to slowly stand up around the pivot seat 211 on the top of the limiting pier 21. At this time, the limiting component 31 limits the steel plate dam 1 until it rotates to 90° and is perpendicular to the water flow direction. Subsequently, the synchronous control module controls the hoist 231 to cut off the power. The erected steel plate dam 1 blocks the water flow, causing the water to accumulate upstream of the dam, increasing the water pressure and providing sufficient power for the horizontal flow power generation device.

[0075] During the flood season, the two sets of hoists 231 are started to rotate synchronously through the synchronous control module. The drum releases the wire rope 233. Under its own weight and the impact of the water flow, the steel plate composite dam 1 slowly falls around the rotating shaft seat 211 until it is parallel to the bottom of the river or at a small angle. At this time, the water flow can pass smoothly from the top or side of the dam body, avoiding the backflow of the river and reducing the load on the dam body from the impact of the water flow, thus ensuring the safety of the device.

[0076] Example 2

[0077] like Figures 1 to 6 As shown, this embodiment provides a water-blocking device application structure that integrates horizontal flow power generation function. Based on the water-blocking device in Embodiment 1, it is used in conjunction with a horizontal flow power generation system to achieve efficient power generation driven by the water flow after water blocking and agglomeration.

[0078] Drainage channel 4 is a precast or cast-in-place concrete diversion channel. Its inlet end is connected to the upstream water collection area formed after the steel plate composite dam 1 is erected, and its outlet end extends to the downstream water area.

[0079] The water turbine 5 is fixedly installed inside the outlet end of the drainage channel 4 to receive the kinetic energy of the converging water body guided by the drainage channel 4;

[0080] The generator 6 is connected to the shaft of the water turbine 5 via a drive (such as a coupling or belt drive) to convert the mechanical energy of the water turbine 5 into electrical energy.

[0081] Basic working principle:

[0082] During non-flood seasons, the two sets of hoists 231 are driven to rotate synchronously forward via the synchronous control module, and the steel wire rope 233 is wound up to make the steel plate composite dam 1 stand upright around the pivot seat of the limiting pier 21 until it is perpendicular to the direction of water flow. Then, the hoist 231 is de-energized, and the steel plate composite dam 1 remains in the water-blocking state. At this time, the upstream water flow is gathered due to the obstruction of the steel plate composite dam 1, forming a water flow with a certain pressure and rushing into the drainage channel 4. When the water flow flows directionally in the drainage channel 4, it drives the turbine 5 to rotate. The turbine 5 drives the generator 6 to operate through the shaft, converting the kinetic energy of the water flow into electrical energy, realizing auxiliary power generation of the horizontal flow.

[0083] During the flood season, the hoist 231 reverses to release the wire rope 233, the steel plate dam 1 collapses, the upstream water accumulation area disappears, and the water flow dynamics in the drainage channel 4 are weakened; power generation can be suspended or low-load power generation can be maintained by utilizing natural water flow according to actual needs, while avoiding the impact of river backflow on the device.

[0084] Beneficial effects

[0085] This embodiment integrates the water-blocking device with the drainage channel, water turbine, and generator, making full use of the water flow power generated by the steel plate composite dam 1 during the non-flood season to drive power generation. This not only solves the problem of "insufficient power" for power generation in the non-flood season, but also expands the functional boundaries of the water-blocking device, realizing the integrated synergy of "water blocking-flow gathering-power generation", further improving the energy utilization efficiency of the water resources and providing a stable clean power supplement for the region.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A water-blocking device suitable for auxiliary power generation in horizontal flow water, characterized in that, It includes a steel plate composite dam (1) and two sets of symmetrically arranged support and retraction components; The two sets of support and retraction components are respectively located at both ends of the steel plate composite dam (1) along its length, and the two sets of support and retraction components have the same structure and move synchronously. The support retraction assembly includes a limiting block (21), an anchoring mechanism (22), and a retraction mechanism (23); The limiting pier (21) is formed by concrete casting and buried at the bottom of the river channel; the top of the limiting pier (21) is provided with a rotating shaft seat (211); the bottom of the steel plate composite dam (1) is movably connected to the limiting pier (21) through the corresponding rotating shaft seat (211); The anchoring mechanism (22) is located at the bottom of the river channel and is set on the side of the steel plate composite dam (1) facing the direction of the limiting pier (21); the anchoring mechanism (22) and the corresponding limiting pier (21) are arranged in the same straight line along the direction of water flow; the anchoring mechanism (22) is provided with several connecting rods (221), and the anchoring mechanism (22) is fixedly connected to the corresponding limiting pier (21) through the connecting rods (221); The pulling mechanism (23) includes a gate opener (231), a pulley block (232), and a wire rope (233); The hoist (231) is fixedly installed on the riverbank and is adapted to the position of the corresponding anchoring mechanism (22); the pulley block (232) includes at least two fixed pulleys, which are respectively located on the top of the corresponding anchoring mechanism (22); a steel wire rope (233) is wound on the drum of the hoist (231), one end of the steel wire rope (233) is wound and fixed to the drum, and the other end is guided by the pulley block (232) and fixedly connected to the corresponding end of the top of the steel plate composite dam (1); the hoists (231) of the two sets of pulling mechanisms (23) rotate synchronously in both directions to pull up and release the steel wire rope (233), so as to realize the synchronous lifting and lowering of the steel plate composite dam (1).

2. The water-blocking device for auxiliary power generation in horizontal flow water according to claim 1, characterized in that, The steel plate composite dam (1) includes an upper circular pipe (11), a steel plate (12) and a lower circular pipe (13); the upper circular pipe (11) is a solid structure and is fixed to the top of the steel plate (12), and the lower circular pipe (13) is a hollow structure and is fixed to the bottom of the steel plate (12), and the upper circular pipe (11) and the lower circular pipe (13) are arranged in parallel.

3. A water-blocking device suitable for auxiliary power generation in horizontal flow water according to claim 2, characterized in that, The outer wall of the upper circular tube (11) is provided with pull ears (14) corresponding to the positions of the two sets of support and pulling components. The pull ears (14) form a 30° angle with the vertical direction of the steel plate composite dam (1). The pull ears (14) are provided with through holes for connecting the corresponding steel wire ropes (233). The end of the steel wire rope (233) away from the hoist (231) is fixedly connected to the pull ears (14) through the through holes, so that the two sets of pulling mechanisms (23) can stably lift the steel plate composite dam (1) through the pull ears (14) to stand up.

4. A water-blocking device suitable for auxiliary power generation in horizontal flow as described in claim 2, characterized in that, The bottom of the lower circular tube (13) is fixed with a connecting part that is adapted to the rotating shaft seat (211), and the steel plate composite dam (1) is movably hinged to the rotating shaft seat (211) through the connecting part.

5. A water-blocking device suitable for auxiliary power generation in horizontal flow water according to claim 1, characterized in that, The anchoring mechanism (22) includes a pier (222) and an anchor rod (223); The anchor (222) is buried at the bottom of the river channel. The anchor (222) is set on the side of the steel plate composite dam (1) facing the direction of the limiting anchor (21). One end of the anchor (223) is cast and fixed to the anchor (222), and the other end is driven into the river channel foundation.

6. A water-blocking device suitable for auxiliary power generation in horizontal flow water according to claim 5, characterized in that, One end of the connecting rod (221) is cast and fixed to the pier (222), and the other end is welded and fixed to the corresponding limiting pier (21); the fixed pulley of the pulley block (232) is fixedly installed on the top of the pier (222) by a bracket.

7. A water-blocking device suitable for auxiliary power generation in horizontal flow water according to claim 2, characterized in that, The upper round tube (11) is also provided with a lifting lug (111), which is fixedly installed against the top of the upper round tube (11).

8. A water-blocking device suitable for auxiliary power generation in horizontal flow water according to claim 2, characterized in that, The steel plate (12) is also provided with reinforcing ribs on the water-facing side, and the reinforcing ribs are distributed in a grid pattern.

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