Water conservancy flood discharge device

Abstract

The utility model belongs to the technical field of water conservancy and hydropower flood discharge, and discloses a water conservancy flood discharge device which comprises a dam, a flood discharge opening is formed in the side wall of the dam in a penetrating mode, a landslide is fixedly arranged on the side wall of the dam, a flood discharge channel is formed in the inclined face of the landslide, and the flood discharge channel directly faces the flood discharge opening. The side wall, away from the landslide, of the dam is symmetrically provided with stand columns, the two stand columns are located on the two sides of the flood discharge opening correspondingly, and the side walls, close to each other, of the two stand columns are jointly provided with a gate in a sliding mode. The anti-backflow device has the effect of reducing the probability of backflow.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower flood discharge, in particular to a water conservancy flood discharge device. Background Art

[0002] Flood discharge structures are vital structures of dams, especially high dams and large reservoirs. Flood discharge structures occupy a very important position. How to ensure the safety of dam flood discharge while saving project investment has always been a key technology in the hydropower industry.

[0003] A Chinese utility model patent with publication number CN220057825U discloses a water conservancy and hydropower flood discharge device, including a dam body, a flood discharge outlet is opened inside the dam body, a lifting groove is opened in the middle of the flood discharge outlet, a flood discharge plate is slidably connected in the lifting groove, and a closing plate is movably connected inside the flood discharge plate.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: the above-mentioned device relies on a compression spring to lift the flood discharge plate. During use, when encountering water flow impact, the compression spring will be compressed by external force, causing the compression spring to rebound back and forth, thereby causing the flood discharge plate to shake under the action of the compression spring. During this process, the position of the buffer hole changes accordingly, causing the water to flow into the buffer hole, thereby causing the water to flow to the other half, thereby causing backflow, thereby reducing the practicality of the device. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a water conservancy flood discharge device.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a water conservancy flood discharge device, including a dam, a flood discharge port is penetrated through the side wall of the dam, a landslide is fixedly arranged on the side wall of the dam, a flood discharge channel is opened on the inclined surface of the landslide, the flood discharge channel is directly opposite to the flood discharge port, columns are symmetrically installed on the side wall of the dam away from the landslide, two of the columns are respectively located on both sides of the flood discharge port, and gates are slidably arranged on the side walls where the two columns are close to each other.

[0007] By adopting the above technical solution, when it is necessary to discharge flood water from the dam, the staff needs to open the gate to allow the water to be discharged through the flood discharge port and the flood discharge channel. Then, when the flood discharge is completed, the staff closes the gate to block the flood discharge port. During this process, the gate surface is flat, thereby reducing the probability of water backflow.

[0008] Furthermore, a drain pipe is installed in the flood discharge outlet, a fixed plate is fixedly provided on the inner top wall of the drain pipe, reset grooves are provided on two opposite inner walls of the drain pipe, reset rods are rotatably provided in the two reset grooves, a rotating plate is commonly fixedly provided on the side walls of the two reset rods close to each other, the side wall of the rotating plate abuts against the side wall of the fixed plate, the rotating plate is located at the end away from the fixed plate and away from the column, and a rounded corner is provided on the upper end of the rotating plate.

[0009] By adopting the above technical solution, when the gate is opened, water flows into the drainage pipe, and then the rotating plate rotates under the action of the water flow, so that the water flows into the spillway. In this process, when the water flow in the direction of the spillway is large, the water flows backward. At this time, since the side wall of the rotating plate abuts against the fixed plate, the rotating plate cannot rotate, and then the rotating plate blocks the water flow, thereby reducing the probability of water flow backflow.

[0010] Furthermore, torsion springs are fixedly arranged on the side walls of the two reset rods that are away from each other, and the other ends of the two torsion springs are respectively fixedly arranged on the side walls of the two reset grooves that are away from each other.

[0011] By adopting the above technical solution, when the rotating plate rotates under the action of water flow, the staff closes the gate. At this time, the water flow in the drainage pipe all flows into the spillway, and the water flow in the drainage pipe is completely drained. The rotating plate is reset under the action of the torsion spring, and then the side wall of the rotating plate abuts against the inner wall of the rotating groove, thereby reducing the difficulty of resetting the rotating plate for the staff, thereby reducing the difficulty of the staff's work.

[0012] Furthermore, a spillway is provided on the side wall of the dam, and a spillway is installed on the side wall of the dam away from the column. The spillway is opposite to the spillway, and the spillway is located above the spillway.

[0013] By adopting the above technical solution, when there is more water flow at the end of the dam away from the slope, the water flows into the end of the dam away from the pillar through the spillway and the spillway, thereby reducing the probability of excessive water overflowing through the upper end of the dam.

[0014] Furthermore, a support plate is fixedly provided on the upper surfaces of the two columns, a motor is fixedly provided on the upper surface of the support plate, a threaded rod is fixedly provided on the end of the output shaft of the motor, and the threaded rod is threadedly connected to the gate.

[0015] By adopting the above technical solution, when the staff needs to open or close the gate, the staff needs to start the motor, thereby rotating the output shaft of the motor, so that the threaded rod rotates synchronously with the motor output shaft under the action of the motor output shaft, and then the gate slides up or down under the action of the threaded rod, thereby reducing the difficulty of opening or closing the gate for the staff, thereby reducing the difficulty of the staff's work.

[0016] Furthermore, a blocking plug is installed in the drain pipe, the upper end of the blocking plug is fixed to the inner wall of the drain pipe, the lower end of the blocking plug abuts against the inner wall of the drain pipe, and the blocking plug is open at one end away from the column.

[0017] By adopting the above technical solution, when the gate is opened, water flows into the drain pipe. Since the upper end of the blocking plug is fixed to the inner wall of the drain pipe, the lower end of the blocking plug abuts against the inner wall of the drain pipe, and then the lower end of the blocking plug is lifted up by the water flow, so that the water flows into the spillway. In this process, when the water flow on the spillway is too much and backflows, due to the special shape of the blocking plug (see the specific structure for details), the water flow is reversed. Figure 6 ), the blocking plug blocks the water flow, thereby reducing the probability of water backflow.

[0018] Furthermore, the blocking plug is made of rubber material.

[0019] By adopting the above technical solution, the blocking plug made of rubber material reduces the difficulty of water flow lifting the rubber plug, thereby improving work efficiency.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. In this application, when the dam needs to discharge flood water, the staff needs to open the gate to allow the water to flow out through the flood discharge port and the flood discharge channel. After the flood discharge is completed, the staff closes the gate to block the flood discharge port. During this process, the gate surface is flat, thereby reducing the probability of water backflow;

[0022] 2. In this application, when the gate is opened, water flows into the drain pipe, and the rotating plate rotates under the action of the water flow, so that the water flows into the spillway. In this process, when the water flow in the direction of the spillway is large, the water flows backward. At this time, since the side wall of the rotating plate abuts against the fixed plate, the rotating plate cannot rotate, and the rotating plate blocks the water flow, thereby reducing the probability of water backflow;

[0023] 3. In this application, when the rotating plate rotates under the action of water flow, the staff closes the gate. At this time, the water flow in the drainage pipe flows into the flood discharge channel, and the water flow in the drainage pipe is completely drained. The rotating plate is reset under the action of the torsion spring, and then the side wall of the rotating plate abuts against the inner wall of the rotating groove, thereby reducing the difficulty of resetting the rotating plate for the staff, thereby reducing the difficulty of the staff's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the drainage pipe in Embodiment 1 of the present utility model;

[0026] Figure 3 It is a schematic diagram of the side cross-section structure of the drainage pipe in Example 1 of the utility model;

[0027] Figure 4 It is a schematic diagram of the structure of the column and the gate in Embodiment 1 of the utility model;

[0028] Figure 5 It is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0029] Figure 6 It is a schematic diagram of the structure of the drainage pipe in Example 2 of the utility model.

[0030] In the figure: 1. dam; 11. landslide; 12. column; 13. gate; 2. spillway; 21. spillway; 22. reset groove; 3. drain pipe; 31. fixed plate; 32. reset rod; 33. rotating plate; 4. torsion spring; 5. spillway; 51. spillway; 6. support plate; 61. motor; 62. threaded rod; 7. blocking plug. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application. Example

[0032] like Figure 1-4As shown, the embodiment of the present application discloses a water conservancy flood discharge device, including a dam 1, a landslide 11, a column 12, a gate 13, a drain pipe 3, a fixed plate 31, a reset rod 32, a rotating plate 33, a torsion spring 4, a flood discharge channel 21, a support plate 6, a motor 61 and a threaded rod 62. The dam 1 is a rectangular parallelepiped structure, and a flood discharge port 2 is provided through the side wall of the dam 1. The cross section of the landslide 11 is triangular, and the landslide 11 is fixedly arranged on the side wall of the dam 1. A flood discharge channel 21 is provided on the inclined surface of the landslide 11, and the flood discharge channel 21 is directly opposite to the flood discharge port 2. The column 12 is a rectangular rod-shaped structure, and two columns 12 are provided and symmetrically installed on the side wall of the dam 1 away from the landslide 11, and the two columns 12 are respectively located on both sides of the flood discharge port 2. The gate 13 is a rectangular plate-shaped structure, and the gate 13 is slidably arranged on the side wall where the two columns 12 are close to each other.

[0033] When the dam 1 needs to discharge flood water, the staff needs to open the gate 13 to discharge water through the flood discharge port 2 and the flood discharge channel 21. After the flood discharge is completed, the staff closes the gate 13 to block the flood discharge port 2. During this process, the surface of the gate 13 is flat, thereby reducing the probability of water backflow.

[0034] The drain pipe 3 is a rectangular tubular structure, which is installed in the flood discharge port 2. The two opposite inner walls of the drain pipe 3 are provided with reset grooves 22. The fixed plate 31 is a rectangular plate-shaped structure, which is fixedly arranged on the inner top wall of the drain pipe 3. The reset rod 32 is a round rod-shaped structure, whose axis is horizontal. Two reset rods 32 are provided and are respectively rotatably arranged in two reset grooves 22. The rotating plate 33 is a rectangular plate-shaped structure, which is fixedly arranged on the side walls where the two reset rods 32 are close to each other, and the side wall of the rotating plate 33 abuts against the side wall of the fixed plate 31. The rotating plate 33 is located at the end away from the fixed plate 31 and away from the column 12, and the upper end of the rotating plate 33 is provided with a rounded corner.

[0035] When the gate 13 is opened, water flows into the drain pipe 3, and the rotating plate 33 is rotated under the action of the water flow, so that the water flows into the spillway 21. In this process, when the water flow in the direction of the spillway 21 is large, the water flows backward. At this time, since the side wall of the rotating plate 33 abuts against the fixed plate 31, the rotating plate 33 cannot rotate, and the rotating plate 33 blocks the water flow, thereby reducing the probability of the water flow flowing backward.

[0036] Two torsion springs 4 are provided, one end of the two torsion springs 4 is respectively fixedly arranged on the side walls of the two reset rods 32 away from each other, and the other end of the two torsion springs 4 is respectively fixedly arranged on the side walls of the two reset grooves 22 away from each other.

[0037] When the rotating plate 33 rotates under the action of the water flow, the staff closes the gate 13. At this time, the water flow in the drainage pipe 3 all flows into the flood discharge channel 21, and the water flow in the drainage pipe 3 is completely drained. The rotating plate 33 is reset under the action of the torsion spring 4, and then the side wall of the rotating plate 33 abuts against the inner wall of the rotating groove, thereby reducing the difficulty of the staff to reset the rotating plate 33, thereby reducing the difficulty of the staff's work.

[0038] A spillway 5 is provided on the side wall of the dam 1 . A spillway 51 is installed on the side wall of the dam 1 away from the column 12 . The spillway 51 is directly opposite to the spillway 5 , and the spillway 5 is located above the discharge port 2 .

[0039] When there is more water flow at the end of the dam 1 away from the slope, the water flows into the end of the dam 1 away from the column 12 through the spillway 5 and the spillway 51, thereby reducing the probability of excessive water overflowing through the upper end of the dam 1.

[0040] The support plate 6 is a rectangular plate-shaped structure, and the support plate 6 is fixedly arranged on the upper surface of the two columns 12. The motor 61 is fixedly arranged on the upper surface of the support plate 6, and the axis of its output shaft is vertical. The threaded rod 62 is fixedly arranged at the end of the output shaft of the motor 61, and its axis coincides with the axis of the output shaft of the motor 61, and the threaded rod 62 is threadedly connected to the gate 13.

[0041] When the staff needs to open or close the gate 13, the staff needs to start the motor 61, thereby rotating the output shaft of the motor 61, so that the threaded rod 62 rotates synchronously with the output shaft of the motor 61 under the action of the output shaft of the motor 61, and then the gate 13 slides up or down under the action of the threaded rod 62, thereby reducing the difficulty of the staff to open or close the gate 13, thereby reducing the difficulty of the staff's work.

[0042] The use principle of a hydraulic flood discharge device in this embodiment is as follows: when it is necessary to discharge flood water from the dam 1, the staff needs to open the gate 13, so that the water flows out through the flood discharge port 2 and the flood discharge channel 21. Subsequently, when the flood discharge is completed, the staff closes the gate 13, so that the gate 13 blocks the flood discharge port 2. During this process, when the gate 13 is opened, the water flows into the drain pipe 3, so that the rotating plate 33 rotates under the action of the water flow, so that the water flows into the flood discharge channel 21. During this process, when the water flow in the direction of the flood discharge channel 21 is large, the water flow flows back. At this time, because the side wall of the rotating plate 33 abuts against the fixed plate 31, the rotating plate 33 cannot rotate, so that the rotating plate 33 blocks the water flow, thereby reducing the probability of the water flow flowing back. Example

[0043] like Figure 5-6As shown, the difference between this embodiment and the first embodiment is that the backflow device in the drain pipe 3 is different. In this embodiment, when the gate 13 is opened, the water flows into the drain pipe 3. Since the upper end of the blocking plug 7 is fixed to the inner wall of the drain pipe 3, the lower end of the blocking plug 7 is in contact with the inner wall of the drain pipe 3 and is made of rubber material, the lower end of the blocking plug 7 is lifted up by the water flow, so that the water flows into the spillway 21. In this process, when the water flow on the spillway 21 is too much and backflow occurs, due to the special shape of the blocking plug 7 (see the specific structure), the backflow device 21 is turned off. Figure 6 ), the blocking plug 7 blocks the water flow, thereby reducing the probability of water backflow.

[0044] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hydraulic flood discharge device, comprising a dam (1), characterized in that: A flood discharge outlet (2) is provided through the side wall of the dam (1), a landslide (11) is fixedly provided on the side wall of the dam (1), a flood discharge channel (21) is provided on the inclined surface of the landslide (11), the flood discharge channel (21) is directly opposite to the flood discharge outlet (2), columns (12) are symmetrically installed on the side wall of the dam (1) away from the landslide (11), two columns (12) are respectively located on both sides of the flood discharge outlet (2), and a gate (13) is slidably provided on the side walls of the two columns (12) close to each other.

2. A hydraulic flood discharge device according to claim 1, characterized in that: A drainage pipe (3) is installed in the flood discharge outlet (2), a fixed plate (31) is fixedly arranged on the inner top wall of the drainage pipe (3), reset grooves (22) are provided on two opposite inner walls of the drainage pipe (3), reset rods (32) are rotatably arranged in the two reset grooves (22), a rotating plate (33) is fixedly arranged on the side walls of the two reset rods (32) close to each other, the side wall of the rotating plate (33) is in contact with the side wall of the fixed plate (31), the rotating plate (33) is located at the end away from the fixed plate (31) and away from the column (12), and the upper end of the rotating plate (33) is provided with a rounded corner.

3. A hydraulic flood discharge device according to claim 2, characterized in that: A torsion spring (4) is fixedly arranged on the side walls of the two reset rods (32) that are away from each other, and the other ends of the two torsion springs (4) are respectively fixedly arranged on the side walls of the two reset grooves (22) that are away from each other.

4. A hydraulic flood discharge device according to claim 1, characterized in that: A spillway (5) is provided on the side wall of the dam (1), and a spillway (51) is installed on the side wall of the dam (1) away from the column (12). The spillway (51) is directly opposite to the spillway (5), and the spillway (5) is located above the flood discharge outlet (2).

5. A hydraulic flood discharge device according to claim 2, characterized in that: A support plate (6) is fixedly provided on the upper surfaces of the two uprights (12), a motor (61) is fixedly provided on the upper surface of the support plate (6), a threaded rod (62) is fixedly provided on the end of the output shaft of the motor (61), and the threaded rod (62) is threadedly connected to the gate (13).

6. A hydraulic flood discharge device according to claim 5, characterized in that: A blocking plug (7) is installed in the drain pipe (3), the upper end of the blocking plug (7) is fixed to the inner wall of the drain pipe (3), the lower end of the blocking plug (7) is in contact with the inner wall of the drain pipe (3), and the blocking plug (7) is open at one end away from the column (12).

7. A hydraulic flood discharge device according to claim 6, characterized in that: The blocking plug (7) is a blocking plug (7) made of rubber material.

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