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CN-122013728-A - Spiral-flow type vertical shaft spillway curve type water channel structure

CN122013728ACN 122013728 ACN122013728 ACN 122013728ACN-122013728-A

Abstract

The invention discloses a spiral-flow type vertical shaft spillway curve type canal structure which comprises a canal runner, wherein one end of the canal runner is fixedly connected with a water bin, the bottom end of the water bin is fixedly connected with a vertical shaft, the water bin is communicated with the inside of the vertical shaft, the inside of the water bin is rotationally connected with a plurality of guide plates, the guide plates are distributed in a central symmetry manner, the top end of the water bin is provided with an adjusting component for adjusting the horizontal angle of the guide plates, the bottom of the vertical shaft is provided with an energy consumption component for consuming the kinetic energy of water, and the energy consumption component is matched with a rotating disc, a deflector rod, a movable column and a movable groove to realize the adjustment of the horizontal angle of the guide plates, ensure that water flow can form optimal pre-rotation under various flow working conditions and is stably connected with the vertical shaft, thereby generating stable vortex, avoiding the water flow from turning to generate folded water flow in the runner, and local flushing caused by impacting the wall of the vertical shaft, and further improving the overflow capacity of the canal.

Inventors

  • ZHAO YUHAO
  • XU JIANWEI
  • LU YIBIN
  • ZHANG PING
  • WANG ZUOTONG
  • WAN LIFEI

Assignees

  • 中国电建集团华东勘测设计研究院有限公司

Dates

Publication Date
20260512
Application Date
20260302

Claims (7)

  1. 1. The utility model provides a spiral-flow type vertical shaft spillway curve type canal structure, includes canal runner (1), its characterized in that, the one end fixedly connected with sump (2) of canal runner (1), the bottom fixedly connected with shaft (3) of sump (2), the inside of sump (2) and shaft (3) communicates with each other, the inside rotation of sump (2) is connected with a plurality of guide plates (4), be central symmetry and distribute between guide plates (4), the top of sump (2) is provided with adjusting part (5), adjusting part (5) are used for adjusting the horizontal angle of guide plate (4), the bottom of shaft (3) is provided with power consumption subassembly (6), power consumption subassembly (6) are used for consuming the kinetic energy of water.
  2. 2. The spiral-flow type vertical shaft spillway curve type canal structure according to claim 1, characterized in that the adjusting component (5) comprises a rotating disc (51), the rotating disc (51) is rotationally connected to the top end of the water sump (2), movable grooves (54) distributed in a central symmetry mode are formed in the rotating disc (51), the number of the movable grooves (54) corresponds to that of the guide plates (4), the top end of a rotating shaft of the guide plates (4) extends to the top end of the water sump (2) and is fixedly connected with a deflector rod (52), one side of the bottom end of the deflector rod (52) is fixedly connected with a movable column (53), and the movable column (53) is movably clamped in the movable grooves (54).
  3. 3. A swirl shaft spillway curve type canal structure according to claim 2, characterized in that the energy consuming assembly (6) comprises a mounting frame (61), the mounting frame (61) is fixedly connected to the bottom end of the shaft (3), and a rotating wheel (62) is rotatably connected to the inside of the mounting frame (61).
  4. 4. A swirl type shaft spillway curve type water channel structure as in claim 3, characterized in that a flowmeter (7) is fixedly installed on one side of the top end of the water channel (1), and the flowmeter (7) is used for detecting the flow velocity of water in the water channel (1).
  5. 5. A spiral-flow type shaft spillway curve type canal structure according to claim 4, characterized in that a protective cover (9) is arranged at the top end of the water bin (2) and is positioned on the outer side fixing cover of the adjusting component (5).
  6. 6. The spiral-flow type vertical shaft spillway curve type canal structure according to claim 5, characterized in that the top end of the rotating shaft of the rotating disc (51) extends to the top end of the protecting cover (9) and is fixedly connected with an extension rod (11), an electric push rod (8) is rotatably installed on one side of the protecting cover (9), and a piston rod of the electric push rod (8) is rotatably connected with one end of the extension rod (11).
  7. 7. The spiral-flow type vertical shaft spillway curve type canal structure according to claim 6, wherein one end of a rotating shaft of the rotating wheel (62) extends to the outer side of the mounting frame (61) and is fixedly provided with a generator (10), and the flowmeter (7) and the electric push rod (8) are electrically connected with the generator (10).

Description

Spiral-flow type vertical shaft spillway curve type water channel structure Technical Field The invention relates to the technical field of diversion channels, in particular to a spiral-flow type vertical shaft spillway curve type diversion channel structure. Background In the field of hydraulic engineering, the spillway is used as a key flood discharging facility of a hydraulic junction such as a reservoir, a hydropower station and the like, has the core functions of rapidly discharging excess flood in the flood season, guaranteeing the safety and stability of a junction main body structure, avoiding heavy disasters such as dam break and the like caused by the overrun of water level, and is widely applied to medium and high water head hydraulic engineering by virtue of the advantages of compact structure, strong flood discharging capability, adaptation to complex terrain conditions and the like. The flood spillway has the working principle that after flood is led in through the water channel, water flow forms a rotary vortex through a specific flow channel design, part of water flow energy is consumed through vortex movement, and the water flow falls into a downstream energy dissipation facility through a vertical shaft and finally is safely discharged into a river channel. However, the diversion channel of the existing spiral-flow type vertical shaft spillway adopts a linear or simple fold line structural design, abrupt flow field boundaries are easy to form at the turning positions of the flow channels of the diversion channel, so that obvious impact effect is generated in the flow process of water flow, when the flow rate of flood is large, the water flow is easy to separate from the channel wall at the turning positions to form vortex or reflux, the continuity of the water flow is damaged, local water head loss is generated, and the overflow capacity of the diversion channel is reduced. Disclosure of Invention The invention aims to provide a spiral-flow type vertical shaft spillway curve type canal structure, which solves the problem of low flood discharge water flow efficiency. The technical scheme is that the spiral-flow type vertical shaft spillway curve type canal structure comprises a canal runner, wherein one end of the canal runner is fixedly connected with a water bin, the bottom end of the water bin is fixedly connected with a vertical shaft, the water bin is communicated with the inside of the vertical shaft, a plurality of guide plates are rotatably connected in the water bin, the guide plates are distributed in a central symmetry mode, an adjusting component is arranged at the top end of the water bin and used for adjusting the horizontal angle of the guide plates, an energy consumption component is arranged at the bottom of the vertical shaft and used for consuming kinetic energy of water, a flowmeter is fixedly arranged on one side of the top end of the canal runner and used for detecting the flow rate of water in the canal runner. Preferably, the adjusting component comprises a rotating disc, the rotating disc is rotationally connected to the top end of the water sump, movable grooves which are distributed in a central symmetry mode are formed in the rotating disc, the number of the movable grooves corresponds to that of the guide plates, the top end of each guide plate rotating shaft extends to the top end of the water sump and is fixedly connected with a deflector rod, one side of the bottom end of the deflector rod is fixedly connected with a movable column, and the movable column is movably clamped in the movable grooves. Preferably, the energy consumption assembly comprises a mounting frame which is fixedly connected to the bottom end of the vertical shaft, and a rotating wheel is rotatably connected to the inside of the mounting frame. Preferably, the top of sump just is located the outside fixed cover of adjusting part and is equipped with the protection casing, the top of rolling disc pivot extends to the top and the fixedly connected with extension rod of protection casing, one side rotation of protection casing installs electric putter, electric putter's piston rod is connected with the one end rotation of extension rod. Preferably, one end of the rotating shaft of the rotating wheel extends to the outer side of the mounting frame and is fixedly provided with a generator, and the flowmeter and the electric push rod are electrically connected with the generator. Compared with the prior art, the invention has the beneficial effects that: 1. Through the cooperation among the rotating disc, the deflector rod, the movable column and the movable groove, the horizontal angle of the deflector plate is adjusted, the water flow can form optimal pre-rotation flow under various flow working conditions, and the water flow is stably connected with the vertical shaft, so that stable vortex flow is generated, the water flow is prevented from being turned in a runner to generate folded water fl