Curve type diversion canal structure of spiral-flow type shaft spillway

Abstract

The spiral-flow type shaft spillway curve type diversion canal structure comprises a diversion canal flow channel, one end of the diversion canal flow channel is fixedly connected with a water sump, the bottom end of the water sump is fixedly connected with a shaft, the water sump is communicated with the interior of the shaft, the interior of the water sump is rotationally connected with a plurality of flow guide plates, and the flow guide plates are distributed in a central symmetry mode. An adjusting assembly is arranged at the top end of the water sump and used for adjusting the horizontal angle of the flow guide plate, and an energy consumption assembly is arranged at the bottom of the vertical shaft and used for consuming kinetic energy of water. Through cooperation of the rotating disc, the shifting rod, the movable column and the movable groove, adjustment of the horizontal angle of the flow guide plate is achieved, it is ensured that water flow can form optimal pre-rotational flow under various flow working conditions and is stably connected with the vertical shaft, and therefore stable vortex is generated, and the situation that the water flow turns in a flow channel to generate folding flushing water flow and impact the wall of the vertical shaft to cause local flushing is avoided; and the overflowing capacity of the diversion canal is further improved.

Description

Technical Field

[0001] This invention relates to the field of water diversion channel technology, specifically to a vortex-type vertical shaft spillway curved water diversion channel structure. Background Technology

[0002] In the field of water conservancy engineering, spillways, as key flood discharge facilities for water conservancy hubs such as reservoirs and hydropower stations, have the core function of rapidly discharging excess floodwater during the flood season, ensuring the safety and stability of the main structure of the hub, and preventing major disasters such as dam failures caused by excessive water levels. Swirl-type vertical shaft spillways, with their advantages of compact structure, strong flood discharge capacity, and adaptability to complex terrain conditions, are widely used in medium- and high-head water conservancy projects. The working principle of this type of spillway is as follows: after floodwater is introduced through the diversion channel, a specific flow channel design causes the water flow to form a rotating vortex. The vortex motion dissipates some of the water flow energy, and the water then falls through the vertical shaft into the downstream energy dissipation facility, finally being safely discharged into the river channel.

[0003] However, the existing vortex-type vertical shaft spillway diversion channels mostly adopt a straight or simple broken line structure design. At the turning points of the diversion channel, abrupt flow field boundaries are easily formed, resulting in a significant "impact effect" during the flow. When the flood flow is large, the water flow is prone to break away from the channel wall at the turning point to form vortices or backflow, which not only disrupts the continuity of the water flow but also causes local head loss and reduces the diversion channel's flow capacity. Summary of the Invention

[0004] The purpose of this invention is to provide a vortex-type vertical shaft spillway curved water diversion channel structure to solve the problem of low flood discharge efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vortex-type vertical shaft spillway curved water diversion channel structure, including a water diversion channel, a water tank fixedly connected to one end of the water diversion channel, a vertical shaft fixedly connected to the bottom end of the water tank, the water tank and the interior of the vertical shaft communicating, a plurality of guide plates rotatably connected inside the water tank, the guide plates being centrally symmetrically distributed, an adjustment component provided at the top of the water tank for adjusting the horizontal angle of the guide plates, an energy-consuming component provided at the bottom of the vertical shaft for consuming the kinetic energy of the water, and a flow meter fixedly installed on one side of the top of the water diversion channel for detecting the flow velocity of the water inside the water diversion channel.

[0006] Preferably, the adjustment component includes a rotating disk rotatably connected to the top of the water tank. The rotating disk has centrally symmetrically distributed movable slots, the number of which corresponds to the number of guide plates. The top of the guide plate's rotating shaft extends to the top of the water tank and is fixedly connected to a lever. A movable column is fixedly connected to one side of the bottom end of the lever, and the movable column is movably engaged in the movable slot.

[0007] Preferably, the energy-consuming component includes a mounting frame, which is fixedly connected to the bottom end of the shaft, and a rotating wheel is rotatably connected inside the mounting frame.

[0008] Preferably, a protective cover is fixedly provided at the top of the water tank and outside the adjustment component, the top of the rotating disk shaft extends to the top of the protective cover and is fixedly connected to an extension rod, and an electric push rod is rotatably installed on one side of the protective cover, with the piston rod of the electric push rod rotatably connected to one end of the extension rod.

[0009] Preferably, one end of the rotor shaft extends to the outside of the mounting frame and is fixedly mounted with a generator, and the flow meter and electric push rod are both electrically connected to the generator.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By coordinating the rotating disc, lever, movable column, and movable groove, the horizontal angle of the guide plate can be adjusted to ensure that the water flow can form the optimal pre-swirling flow under various flow conditions, smoothly connect with the vertical shaft, thereby generating a stable vortex, avoiding the water flow from being deflected at the turning point of the flow channel, impacting the vertical shaft wall and causing local scouring, and further improving the flow capacity of the water diversion channel. 2. By setting up a rotor, the potential energy of the water flow is converted into the kinetic energy of the rotor's rotation, and then further converted into electrical energy, thereby further improving the energy utilization rate. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of a partially disassembled structure of the present invention.

[0015] Figure 4 This is a schematic diagram of the flow channel structure of the present invention.

[0016] In the diagram: 1. Water diversion channel; 2. Water tank; 3. Shaft; 4. Guide plate; 5. Adjustment component; 51. Rotary disc; 52. Lever; 53. Movable column; 54. Movable groove; 6. Energy-consuming component; 61. Mounting frame; 62. Rotary wheel; 7. Flow meter; 8. Electric push rod; 9. Protective cover; 10. Generator; 11. Extension rod. Detailed Implementation

[0017] 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.

[0018] like Figure 1-4 As shown, the present invention provides a vortex-type vertical shaft spillway curved water diversion channel structure, including a water diversion channel 1, a water tank 2 fixedly connected to one end of the water diversion channel 1, a vertical shaft 3 fixedly connected to the bottom end of the water tank 2, the water tank 2 and the vertical shaft 3 are internally connected, a plurality of guide plates 4 are rotatably connected inside the water tank 2, the guide plates 4 are centrally symmetrically distributed, an adjustment component 5 is provided at the top of the water tank 2, the adjustment component 5 is used to adjust the horizontal angle of the guide plates 4, and an energy dissipation component 6 is provided at the bottom of the vertical shaft 3, the energy dissipation component 6 is used to dissipate the kinetic energy of the water.

[0019] The adjustment component 5 includes a rotating disk 51, which is rotatably connected to the top of the water tank 2. The rotating disk 51 has centrally symmetrically distributed movable slots 54, the number of which corresponds to the number of guide plates 4. The top of the rotating shaft of the guide plate 4 extends to the top of the water tank 2 and is fixedly connected to a lever 52. A movable column 53 is fixedly connected to one side of the bottom end of the lever 52, and the movable column 53 is movably engaged in the movable slot 54.

[0020] By adopting the above technical solution and setting the guide plate 4, the water flow generates vortices when it enters the vertical shaft 3 through the guide plate 4. By rotating the rotating disk 51, the movable column 53 is rotated by the movable groove 54, which in turn drives the guide plate 4 to rotate around its axis. This adjusts the horizontal angle of the guide plate 4 relative to the rotating disk 51, ensuring that optimal pre-swirling flow can be formed under various flow conditions, and smoothly connecting with the vertical shaft 3. The energy-consuming component 6 includes a mounting frame 61, which is fixedly connected to the bottom end of the shaft 3, and a rotating wheel 62 is rotatably connected inside the mounting frame 61.

[0021] By adopting the above technical solution, when the water flows from the top of the shaft 3 to the bottom of the shaft 3, the potential energy of the water flow is converted into the kinetic energy of the rotating wheel 62, which further dissipates the energy in the water.

[0022] A flow meter 7 is fixedly installed on one side of the top of the water diversion channel 1. The flow meter 7 is used to detect the flow rate of water inside the water diversion channel 1.

[0023] By adopting the above technical solution and setting up a flow meter 7, it is convenient to monitor the flow velocity of water inside the water diversion channel 1 in real time, thereby controlling and adjusting the horizontal angle of the guide plate 4.

[0024] The top of the water tank 2 and the outer side of the adjusting component 5 is provided with a protective cover 9.

[0025] By adopting the above technical solution and setting up the protective cover 9, the parts inside the protective cover 9 can be protected.

[0026] The top of the rotating disk 51 extends to the top of the protective cover 9 and is fixedly connected to an extension rod 11. An electric push rod 8 is rotatably installed on one side of the protective cover 9, and the piston rod of the electric push rod 8 is rotatably connected to one end of the extension rod 11.

[0027] By adopting the above technical solution, the extension rod 11 is pushed to rotate by the extension and retraction of the piston rod of the electric push rod 8, which in turn drives the rotating disk 51 to rotate, thereby realizing the adjustment of the angle of the guide plate 4.

[0028] One end of the shaft of the rotor 62 extends to the outside of the mounting frame 61 and is fixedly mounted with the generator 10. The flow meter 7 and the electric push rod 8 are both electrically connected to the generator 10.

[0029] By adopting the above technical solution and setting up generator 10, the kinetic energy of rotor 62 is converted into electrical energy, thereby further improving the energy utilization rate.

[0030] Working principle: During flood discharge, the floodwater enters the interior of the diversion channel 1 through one end of the diversion channel 1, then flows into the interior of the water tank 2, and passes through the space between the guide plates 4 into the interior of the vertical shaft 3. When passing through the space between the guide plates 4, the guide plates 4 guide the water flow, causing the water flow to generate vortices. This allows the energy to be gradually dispersed and released during the rotation process, avoiding direct impact between the water flow and the wall, making the flow state more stable. When the water flows into the interior of the vertical shaft 3 and moves towards the bottom of the vertical shaft 3, it collides with the rotating wheel 62 inside the mounting frame 61. The potential energy generated by the height difference of the vertical shaft 3 is converted into the kinetic energy of the rotating wheel 62. The generator 10 converts the kinetic energy of the rotating wheel 62 into electrical energy, improving the energy utilization rate. During the flood discharge process, the flow rate of the water is monitored by the flow meter 7 and the electrical signal is transmitted to the electric push rod 8. The extension and retraction of the piston rod of the electric push rod 8 pushes the extension rod 11 to rotate, which in turn drives the rotating disk 51 to rotate. The movable groove 54 rotates the movable column 53, which in turn drives the guide plate 4 to rotate around its axis, thereby adjusting the horizontal angle of the guide plate 4 relative to the rotating disk 51. This ensures that the water flow can form the optimal pre-swirling flow under various flow conditions and smoothly connect with the vertical shaft 3.

[0031] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A vortex-type vertical shaft spillway curved water diversion channel structure, comprising a water diversion channel (1), characterized in that: One end of the water diversion channel (1) is fixedly connected to a water tank (2), and the bottom end of the water tank (2) is fixedly connected to a vertical shaft (3). The water tank (2) and the vertical shaft (3) are connected internally. Several guide plates (4) are rotatably connected inside the water tank (2). The guide plates (4) are centrally symmetrically distributed. An adjustment component (5) is provided at the top of the water tank (2). The adjustment component (5) is used to adjust the horizontal angle of the guide plates (4). An energy-consuming component (6) is provided at the bottom of the vertical shaft (3). The energy-consuming component (6) is used to consume the kinetic energy of the water.

2. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 1, characterized in that, The adjustment component (5) includes a rotating disk (51), which is rotatably connected to the top of the water tank (2). The rotating disk (51) has centrally symmetrically distributed movable slots (54). The number of movable slots (54) corresponds to the number of guide plates (4). The top of the rotating shaft of the guide plate (4) extends to the top of the water tank (2) and is fixedly connected to a lever (52). A movable column (53) is fixedly connected to one side of the bottom end of the lever (52). The movable column (53) is movably engaged in the movable slot (54).

3. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 2, characterized in that, The energy-consuming component (6) includes a mounting frame (61), which is fixedly connected to the bottom end of the shaft (3), and a rotating wheel (62) is rotatably connected inside the mounting frame (61).

4. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 3, characterized in that, A flow meter (7) is fixedly installed on one side of the top of the water diversion channel (1). The flow meter (7) is used to detect the flow rate of water inside the water diversion channel (1).

5. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 4, characterized in that, The top of the water tank (2) and the outer side of the adjustment component (5) is provided with a protective cover (9).

6. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 5, characterized in that, The top of the rotating disk (51) shaft extends to the top of the protective cover (9) and is fixedly connected to an extension rod (11). An electric push rod (8) is rotatably installed on one side of the protective cover (9), and the piston rod of the electric push rod (8) is rotatably connected to one end of the extension rod (11).

7. The vortex-type vertical shaft spillway curved water diversion channel structure as described in claim 6, characterized in that, One end of the shaft of the wheel (62) extends to the outside of the mounting frame (61) and is fixedly mounted with a generator (10). The flow meter (7) and the electric push rod (8) are both electrically connected to the generator (10).

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