CN-121451546-B - Water conservancy project throttle flood discharge gate and method

CN121451546BCN 121451546 BCN121451546 BCN 121451546BCN-121451546-B

Abstract

The invention relates to the technical field of flood discharge gates, and discloses a water conservancy project throttle flood discharge gate and a use method thereof, comprising a bottom plate, two side piers fixedly arranged on the bottom plate, a flood discharge slope fixedly connected with one end of the bottom plate, a main gate is slidably arranged between the two side piers, a lifting frame is fixedly arranged at the upper ends of the two side piers, a winch is fixedly arranged on the lifting frame, and a steel wire rope is fixedly connected between the output end of the winch and the upper end of the main gate. The invention uses water flow to drive the paddle to move, so that the rotating shaft drives the turntable to rotate, the sliding rod is acted by centrifugal force along the centrifugal groove to slide towards the edge of the turntable when rotating along with the turntable, the arc plate is continuously limited by the sliding rod to drive the sliding block to move upwards, at the moment, the pressure sensing plate senses pressure and controls the air cylinder to extend out to a corresponding blocking position, the wedge block drives the water guide plate to rotate, the upward rotation of the end part of the water guide plate reduces the angle for intercepting flood, and excessive water flow in the flood runner is prevented from increasing the load of the water turbine.

Inventors

LIU XIAORONG
REN GUORONG
Liang Linxian
Zhu Tianbi
DENG CHUNXIU
LIU BO
Luo Luwei

Assignees

中水君信工程勘察设计有限公司

Dates

Publication Date: 20260508
Application Date: 20251229

Claims (10)

1. The utility model provides a water conservancy project's throttle floodgate that discharges, includes bottom plate (1), fixed mounting in two side mounds (2) on bottom plate (1), with flood discharge slope (4) of bottom plate (1) one end fixed connection, wherein two slidable mounting has main gate (5) between side mound (2), two side mound (2) upper end fixed mounting has hoisting frame (3), fixed mounting has hoist engine (6) on hoisting frame (3), fixed connection has wire rope (7) between hoist engine (6) output and main gate (5) upper end, fixed mounting has floater cleaning device (47) between two side mounds (2), fixed mounting has two vortex tube (8) on flood discharge slope (4), equal fixed mounting has hydraulic turbine (9) that are used for the hydroelectric power generation in each vortex tube (8); Two first guide plates (10) and two partition plates (11) are symmetrically and fixedly installed on the flood discharging slope (4), each partition plate (11) is fixedly connected with a corresponding side pier (2), each first guide plate (10) is fixedly connected with a corresponding vortex tube (8), each first guide plate (10) is fixedly connected with a corresponding partition plate (11) to form a flood runner (13), each flood runner (13) is communicated with a corresponding vortex tube (8), each first guide plate (10) is rotatably installed at the upper end of each first guide plate (10), a wedge-shaped plate (35) for guiding flood is fixedly installed at the lower end of each guide plate (35), each wedge-shaped plate (36) is located in the flood discharging slope (4), a cylinder (37) is fixedly installed in the flood discharging slope (4), and a wedge-shaped plate (38) matched with the wedge-shaped plate (36) is installed at the output end of the cylinder (37).
2. The hydraulic engineering throttling flood discharging gate according to claim 1, wherein a rotating shaft (22) is rotatably arranged between two side piers (2), a plurality of circumferentially arranged paddles (23) are fixedly arranged at two ends of the rotating shaft (22), a rotating disc (24) is fixedly arranged at one end of the rotating shaft (22), the rotating disc (24) is rotatably arranged in the corresponding side piers (2), a plurality of circumferentially arranged centrifugal grooves (25) are arranged on the rotating disc (24), a sliding rod (26) is slidably arranged in each centrifugal groove (25), a first spring (27) is fixedly connected between each sliding rod (26) and the inner wall of the corresponding centrifugal groove (25), a pressure sensing plate (31) for controlling the extending amount of a cylinder (37) is fixedly arranged on the inner wall of the top of the corresponding side pier (2), and an arc plate (28) limited by the sliding rod (26) is arranged at the lower end of the pressure sensing plate (31).
3. The hydraulic engineering throttling flood discharging gate according to claim 2, wherein a sliding block (29) is fixedly arranged at the upper end of the arc-shaped plate (28), a second spring (30) is fixedly connected between the upper end of the sliding block (29) and the lower end of the pressure sensing plate (31), two guide plates (33) for limiting the sliding block (29) are fixedly arranged on the inner wall of the corresponding side pier (2), one side of each guide plate (33) is provided with an inclined plane, a plurality of arc-shaped grooves (34) are formed in the inclined plane, the arc-shaped grooves (34) are vertically arranged and gradually increase from bottom to top, and elastic blocks (32) limited by the arc-shaped grooves (34) are fixedly arranged on two sides of the sliding block (29).
4. The hydraulic engineering saving flood discharging gate according to claim 3, wherein a ratchet wheel (39) is fixedly arranged at the lower end of each water guide plate (35), two pawls (40) for limiting the ratchet wheel (39) are rotatably arranged in each flood discharging slope (4), and a third spring (41) is fixedly connected between one end of each pawl (40) and the inner wall of each flood discharging slope (4).
5. The hydraulic engineering saving flood discharging gate according to claim 4, wherein triangular plates (42) are fixedly installed at the lower ends of the pawls (40), two blocking strips (43) used for limiting the triangular plates (42) are symmetrically and fixedly installed on the inner wall of the flood discharging slope (4), limiting pieces (44) are fixedly installed at two sides of the upper end of each wedge-shaped plate (38), a plurality of telescopic blocks (45) are slidably installed in each limiting piece (44), one end of each telescopic block (45) is in a wedge shape matched with each triangular plate (42), and a fourth spring (46) is fixedly connected between the other end of each telescopic block and the inner wall of the corresponding limiting piece (44).
6. The hydraulic engineering saving flood discharge gate according to claim 5, wherein each side pier (2) is internally provided with a water guide groove (17), two second guide plates (12) are symmetrically and fixedly arranged on the flood discharge slope (4), the upper end of each second guide plate (12) is fixedly connected with the corresponding side pier (2), the lower end of each second guide plate is fixedly connected with the corresponding vortex tube (8), a power generation flow channel (14) is formed between each second guide plate (12) and the corresponding partition plate (11), and two ends of each power generation flow channel (14) are communicated with the corresponding water guide groove (17) and the corresponding flood flow channel (13).
7. The hydraulic engineering floodgate of claim 6, wherein each side pier (2) is vertically and slidably provided with a side gate (18), a cable (19) is fixedly connected between the upper end of each side gate (18) and the upper end of the main gate (5), and two pulley blocks (20) for limiting the cable (19) are fixedly arranged at the lower end of the lifting frame (3).
8. The hydraulic engineering saving flood discharging gate according to claim 7, wherein a rotating plate (15) for guiding water flows in the flood flow channel (13) and the power generation flow channel (14) is rotatably arranged on the partition plate (11), a plurality of water isolation strips (16) are fixedly arranged in each flood flow channel (13), and two ends of each water isolation strip (16) are arranged in a wedge shape.
9. The hydraulic engineering saving flood discharging gate according to claim 8, wherein a plurality of mud blocking slopes (21) for reducing the impact of sediment on the blades (23) and the water guide plate (35) are fixedly arranged on the bottom plate (1), one end of each mud blocking slope (21) is fixedly connected with the corresponding side pier (2), the other end of each mud blocking slope is arranged in a circular arc shape along the water flowing direction, and one surface of each mud blocking slope (21) contacted with water is arranged as a slope surface.
10. A method of using a water conservancy project throttle flood gate, comprising a throttle flood gate according to any one of claims 1 to 9, characterized in that the method of use comprises the steps of: s1, acquiring hydrologic data and evaluating, monitoring the upstream water level and the warehouse-in flow in real time, and observing rainfall prediction and the river basin soil saturation; s2, confirming working states of the winch (6), the water turbine (9) and the air cylinder (37), and ensuring normal operation; S3, when the flood discharge is carried out without opening the gate, the main gate (5) falls, the ropes (19) pull up the gates (18) at the two sides, water stably flows into the power generation flow channel (14) through the water guide channel (17), flows into the flood flow channel (13) through the power generation flow channel (14), finally flows into the vortex tube (8), and drives the water turbine (9) to work for power generation; s4, when flood discharge is needed, the winch (6) lifts the main gate (5), the side gate (18) slides downwards to block the water guide groove (17) due to self gravity, the water flow drives the paddle (23) to move, the rotating shaft (22) drives the rotary table (24) to rotate, the sliding rod (26) slides towards the edge of the rotary table (24) under the action of centrifugal force, the arc plate (28) is continuously limited by the sliding rod (26) to drive the sliding block (29) to move upwards, the pressure sensing plate (31) senses pressure and controls the air cylinder (37) to extend to a corresponding blocking position, the wedge plate (38) pushes the wedge block (36) to drive the water guide plate (35) to rotate, the angle of the water guide plate (35) for blocking flood is reduced, the water flow entering the flood runner (13) is reduced, and excessive water flow in the flood runner (13) is prevented from increasing the load of the water turbine (9); S5, pushing the inclined surface of the telescopic block (45) to contact with the inclined surface of the triangular plate (42) in the extending process of the air cylinder (37), retracting the telescopic block (45) into the limiting piece (44), limiting the ratchet wheel (39) through the pawl (40) and limiting the triangular plate (42) through the baffle strip (43), preventing the end part of the water guide plate (35) from being impacted by water flow to rotate downwards, when the air cylinder (37) is retracted, enabling the straight surface of the telescopic block (45) to contact with the straight surface of the triangular plate (42) to drive the triangular plate (42) to rotate with the pawl (40), releasing the limit of the pawl (40) on the ratchet wheel (39), pushing water flow and the dead weight of the water guide plate (35) to enable the end part of the water guide plate (35) to rotate downwards, after the air cylinder (37) is retracted for one gear, pushing the pawl (40) to reset with the triangular plate (42) by the elastic force of the third spring, limiting the next tooth of the ratchet wheel (39), and supporting the water guide plate (35), and reducing the load of the air cylinder (37); And S6, monitoring the flood discharge amount in real time, and lowering the main gate (5) when the flood discharge amount is reduced and the reservoir water level is lowered to a dangerous-free range.

Description

Water conservancy project throttle flood discharge gate and method Technical Field The invention relates to the technical field of flood discharge gates, in particular to a water conservancy project throttle flood discharge gate and a method. Background The main structure of the sluice flood gate comprises a gate, a gate groove, a lifting mechanism, a control room and the like, the gate is closed in the dead water period to stop water, the upstream water level is lifted, the water flow is precisely controlled, requirements of agricultural irrigation, urban water supply and the like are guaranteed, the gate is opened in the flood period, the lower discharge flow is controlled, the downstream flood prevention pressure is reduced, the gate is opened in a small amplitude mode when the water level exceeds the initial stage of a warning line, tentative discharge is carried out, the gate is fully opened to release surplus water in the peak period, flood discharge is carried out in a full-force mode, excessive pressure bearing of a dam body or dam break is prevented, meanwhile, the tail flood is stopped in the peak period, and the tail flood is converted into subsequent irrigation or power generation resources; When the gate discharges floodwater, a large amount of water can be discharged, the existing gate is not provided with a channel for guiding water flow during flood discharge, so that the water flow during flood discharge cannot be utilized to generate electricity, a certain resource waste is caused, the high-speed water flow during flood discharge is in a strong turbulence state, and contains a large amount of bubbles, eddies and impurities, a controllable flow state is difficult to form, the hydroelectric power generation needs to stabilize laminar flow to drive the water turbine to operate efficiently, the turbulence can cause the efficiency of the water turbine to be very low, even vibration and shutdown of the water turbine set are caused, meanwhile, the flood discharge target of the flood discharge gate is controlled to rapidly discharge water, the water quantity required by far exceeding the power generation needs is required to be released in a short time, especially when the flood discharge is started, the flow speed and the pressure of the water flow are large, and can exceed the bearing range of a generator set, if the flood is forcedly guided into the water turbine, cavitation erosion or vibration damage of blades can be caused, and unnecessary economic loss and resource waste are caused. Disclosure of Invention The invention aims to provide a water conservancy project throttle flood discharge gate and a method thereof, which are used for solving the problems in the background technology. The technical scheme includes that the throttle flood discharge gate of the hydraulic engineering comprises a bottom plate, two side piers fixedly arranged on the bottom plate, a flood discharge slope fixedly connected with one end of the bottom plate, a main gate arranged between the two side piers in a sliding mode, lifting frames fixedly arranged at the upper ends of the two side piers, a winch fixedly arranged on the lifting frames, a steel wire rope fixedly connected between the output end of the winch and the upper end of the main gate, a floater cleaning device fixedly arranged between the two side piers, two vortex cylinders fixedly arranged on the flood discharge slope, and a water turbine for hydroelectric generation fixedly arranged in each vortex cylinder; Two first guide plates and two baffles are symmetrically and fixedly installed on the flood discharge slope, the upper ends of the baffles are fixedly connected with corresponding side piers, the lower ends of the first guide plates are fixedly connected with corresponding vortex drums, flood flow passages are formed between the first guide plates and the corresponding baffles, the flood flow passages are communicated with the corresponding vortex drums, water guide plates for guiding flood are rotatably installed at the upper ends of the first guide plates, wedge blocks are fixedly installed at the lower ends of the water guide plates, the wedge blocks are located in the flood discharge slope, air cylinders are fixedly installed in the flood discharge slope, and wedge plates matched with the wedge blocks are fixedly installed at the output ends of the air cylinders. Preferably, the rotating shaft is rotatably arranged between the two side piers, a plurality of paddles which are circumferentially arranged are fixedly arranged at two ends of the rotating shaft, a turntable is fixedly arranged at one end of the rotating shaft, the turntable is rotatably arranged in the corresponding side piers, a plurality of centrifugal grooves which are circumferentially arranged are arranged on the turntable, a sliding rod is slidably arranged in each centrifugal groove, a first spring is fixedly connected between each sliding rod and the corresponding inner wall