A reservoir flood discharge device

Abstract

The application provides a reservoir flood discharge device, which comprises a dam body and a flood discharge channel, the dam body is provided with a water inlet pipe on the side facing the reservoir, the bottom end of the water inlet pipe is connected with a U-shaped corrugated water pipe, the water inlet of the other end of the U-shaped corrugated water pipe is height-adjustable and is not higher than the flood discharge water level in the reservoir; a hump pipe and a drain pipe are arranged on the dam body, one end of the hump pipe is connected with the water inlet pipe, the other end of the hump pipe is connected with the drain pipe; the water outlet end of the drain pipe is not higher than the free end of the U-shaped corrugated water pipe; a siphon device is arranged near the free end of the U-shaped corrugated water pipe or in the water inlet pipe or in the drain pipe or on the side of the drain pipe so as to form a siphon in the U-shaped corrugated water pipe, the water inlet pipe and the drain pipe. The height of the pipe opening of the free end of the U-shaped corrugated water pipe is adjusted to the target flood discharge water level line, and the discharge can be automatically stopped after the flood discharge reaches the target, without manual control of the closing of the water valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic engineering, in particular to a reservoir flood discharge device. BACKGROUND

[0002] The reservoir is an important water storage and drainage engineering facility in a water conservancy project. During the rainy season, it can discharge flood water and store water. During the dry season, it can discharge water for irrigation, and has good practicality. However, when the water volume is too large during the rainy season, the reservoir needs to discharge flood water.

[0003] The existing reservoir builds a dam at the outlet of the reservoir. A gate is arranged in the dam. When the water level of the reservoir reaches a specified position, the gate is closed. However, a person needs to keep watch on the gate at all times, and the flood discharge speed is not fast enough, and the flood discharge time is relatively long. SUMMARY

[0004] The purpose of the present application is to provide a reservoir flood discharge device to solve the above problems.

[0005] To this end, the above-mentioned purpose of the present application is achieved by the following technical solutions:

[0006] A reservoir flood discharge device includes a dam body and a flood discharge channel. The bottom end of the dam body is provided with a flood discharge channel. The side of the dam body facing the reservoir is provided with a water inlet pipe. The bottom end of the water inlet pipe is connected in communication with a U-shaped corrugated water pipe. The water inlet of the other end of the U-shaped corrugated water pipe is height-adjustable and not higher than the flood water level height in the reservoir.

[0007] A hump pipe and a drain pipe are arranged on the dam body. One end of the hump pipe is connected in communication with the water inlet pipe. The other end of the hump pipe is connected in communication with the drain pipe. The water outlet end of the drain pipe is not higher than the free end of the U-shaped corrugated water pipe.

[0008] A siphon device is arranged near the free end of the U-shaped corrugated water pipe, in the water inlet pipe, in the drain pipe, or on the side of the drain pipe, so that a siphon is formed in the U-shaped corrugated water pipe, the water inlet pipe, and the drain pipe.

[0009] A beveled gate is arranged in the flood discharge channel and is rotatably connected with the flood discharge channel. One side of the beveled gate is slidably connected with one end of a push plate. The other end of the push plate is hingedly connected with a turnover plate. The turnover plate is arranged at the outlet end of the flood discharge channel. The top end of the turnover plate is higher than the water outlet end of the drain pipe.

[0010] The water-facing surface of the beveled gate has a first side surface and a second side surface at an included angle. The first side surface is hollow. The second side surface is not hollow.

[0011] While the above technical solutions are used, the present application can also use or combine the following technical solutions:

[0012] As a preferred technical solution of the present application: the siphon device is a negative pressure drainage device, the negative pressure drainage device is arranged at the side of the drain pipe, and at least one branch pipe is arranged between the negative pressure drainage device and the drain pipe.

[0013] As a preferred technical solution of the present application: the branch pipe is two, which are a first water inlet branch pipe and a second water outlet branch pipe, an electromagnetic valve is arranged at the connection between the first water inlet branch pipe and the drain pipe and the connection between the second water outlet branch pipe and the drain pipe, and a water flow sensor is arranged in the water outlet end of the second water outlet branch pipe.

[0014] As a preferred technical solution of the present application: the siphon device is a water pump, the water pump is arranged near the free end of the U-shaped corrugated water pipe or in the water inlet pipe or in the drain pipe.

[0015] As a preferred technical solution of the present application: a sleeve ring is arranged on the free end of the U-shaped corrugated water pipe, a transmission rod is arranged on the sleeve ring, and the upper end of the transmission rod is connected with a hydraulic rod.

[0016] As a preferred technical solution of the present application: the outer surface of the transmission rod is provided with a mark point corresponding to the water level line of the reservoir.

[0017] As a preferred technical solution of the present application: a limiting groove is arranged on the inner side of the bevel gate, and a roller is arranged between the push plate and the limiting groove.

[0018] As a preferred technical solution of the present application: a telescopic pushing structure is arranged on the dam body, the end of the telescopic pushing structure is provided with a push rod, and the free end of the push rod abuts against the upper end of the turnover plate.

[0019] As a preferred technical solution of the present application: the telescopic pushing structures are arranged on the two sides of the drain pipe in pairs.

[0020] As a preferred technical solution of the present application: the telescopic pushing structure is any one of an electric telescopic structure and a hydraulic telescopic structure.

[0021] As a preferred technical solution of the present application: a hydraulic lock rod is arranged near the outlet end of the flood discharge channel, and the hydraulic lock rod is used for locking the turnover plate after being turned over and flattened.

[0022] As a preferred technical solution of the present application: a protective outer frame is arranged outside the water inlet pipe, and a U-shaped bending rod is arranged outside the connection between the U-shaped corrugated water pipe and the water inlet pipe.

[0023] As a preferred technical solution of the present application: a water level sensor is arranged on the side of the dam body facing the reservoir.

[0024] As a preferred technical scheme of the present application: the top of the dam body is provided with a control box, which is used for controlling the telescopic pushing structure, the hydraulic lock rod, the negative pressure drainer, the electromagnetic valve, the water pump and the hydraulic rod.

[0025] The reservoir flood discharge device provided by the present application can automatically stop water discharge after the flood discharge reaches the target, without manual control of the closing of the water valve, and is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The overall structure of the reservoir flood discharge device provided by the present application is shown in the figure;

[0027] Figure 2 The structure of one side of the reservoir flood discharge device provided by the present application is shown in the figure;

[0028] Figure 3 The structure of the other side of the reservoir flood discharge device provided by the present application is shown in the figure;

[0029] Figure 4 The structure of the position of the turnover plate is shown in the figure;

[0030] Figure 5 The structure of the turnover plate in the turnover state is shown in the figure;

[0031] Figure 6 The structure of the bevel joint gate is shown in the figure;

[0032] In the figure: 1, dam body; 2, flood discharge channel; 3, protective outer frame; 4, bending rod; 5, water inlet pipe; 6, U-shaped corrugated water pipe; 7, collar; 8, transmission rod; 9, hydraulic rod; 10, hump pipe; 11, drain pipe; 12, branch pipe; 13, negative pressure drainer; 14, bevel joint gate; 15, arc strength plate; 16, triangular abutting plate; 17, mounting slot; 18, turnover plate; 19, push plate; 20, limiting groove; 21, telescopic pushing structure; 22, push rod; 23, hydraulic lock rod. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0034] Example 1

[0035] As Figures 1-6As shown, a reservoir flood discharge device, comprising a dam body 1 and a flood discharge channel 2, the bottom end of the dam body 1 is provided with a flood discharge channel 2, the side of the dam body 1 facing the reservoir is fixedly provided with a protective outer frame 3, the bottom of the protective outer frame 3 is provided with a U-shaped bending rod 4, the inside of the protective outer frame 3 is provided with a water inlet pipe 5, the bottom end of the water inlet pipe 5 is connected with a U-shaped corrugated water pipe 6, the pipe opening of the U-shaped corrugated water pipe 6 is provided with a sleeve ring 7, the top end of the sleeve ring 7 is connected with a transmission rod 8, the top end of the transmission rod 8 is connected with a hydraulic rod 9, the top end of the water inlet pipe 5 is connected with a hump pipe 10, and the hump pipe 10 is located at the top end of the dam body 1, the other end of the hump pipe 10 is connected with a drain pipe 11, the drain pipe 11 is laid obliquely downward along the dam body 1, the top end of the drain pipe 11 is connected with a branch pipe 12, the branch pipe 12 is connected with a negative pressure drainer 13, the inside of the flood discharge channel 2 is hingedly provided with a bevel gate 14, the side surface of the bevel gate 14 facing the reservoir is provided with an arc-shaped strength plate 15, the inside of the flood discharge channel 2 is fixedly provided with a triangular abutting plate 16 at the top end, and the triangular abutting plate 16 abuts against the inside of the bevel gate 15, the end of the flood discharge channel 2 is provided with a mounting slot 17, the inside of the mounting slot 17 is hingedly provided with a turnover plate 18, the bottom end of the turnover plate 18 is hingedly provided with a push plate 19, and the other end of the push plate 19 abuts against the inside of the bevel gate 14, and the top end of the turnover plate 18 is higher than the pipe opening of the drain pipe 11.

[0036] The water inlet end and the water outlet end of the branch pipe 12 connected with the drain pipe 11 are both provided with electromagnetic valves for controlling water flow, and the inside of the water outlet end is provided with a water flow sensor.

[0037] The inside surface of the bevel gate 14 is provided with a limiting slot 20, the top end of the push plate 19 is provided with a roller shaft or a roller, and the roller shaft or the roller is located inside the limiting slot 20, the push plate 19 pushes the bevel gate 14 inside the limiting slot 20, so as to avoid affecting the closing of the bevel gate 14, and the roller shaft or the roller can reduce the friction between the push plate 19 and the bevel gate 14, and the pushing is more smooth.

[0038] The surface of the transmission rod 8 is provided with corresponding mark points according to the water level line of the reservoir, so as to facilitate adjusting the height of the transmission rod 8, thereby controlling the height of the pipe opening of the U-shaped corrugated water pipe 6.

[0039] When flood discharge is required, the height of the transmission rod 8 is first controlled by the hydraulic rod 9, and then the transmission rod 8 controls the horizontal height of the U-shaped corrugated water pipe 6 below. The specific height is adjusted according to the required flood discharge volume. The opening of the U-shaped corrugated water pipe 6 is adjusted to the water level line of the reservoir after the flood discharge. During the height adjustment process, the U-shaped corrugated water pipe 6 swings with the bending rod 4 as the fulcrum to avoid pulling on the inlet pipe 5 and causing swaying. Then, the solenoid valve at the outlet of the branch pipe 12 is closed, and the negative pressure diverter 13 is activated to allow the hump pipe 10 and the discharge pipe to flow smoothly. A negative pressure is created at the front end of water pipe 11. Water from the reservoir flows along the U-shaped corrugated water pipe 6, inlet pipe 5, hump pipe 10, and the front end of inlet pipe 5 into the negative pressure diverter 13. To enhance water flow, a centrifugal pump (or a centrifugal pump alone to create a siphon) can be installed at the lowest point inside inlet pipe 5, allowing water to be drawn in more effectively. After receiving a signal from the negative pressure diverter 13, the water flow sensor at the outlet of branch pipe 12 opens the solenoid valve at the outlet. After the end of drain pipe 11 drains, branch pipe 12 can be drained. 2. The solenoid valves at the connection points with the drainage pipe 11 are all closed. Under the siphon effect, the water in the reservoir is pumped out and discharged. The water discharged from the drainage pipe 11 washes over the tilting plate 18. The tilting plate 18 is tilted by force and pushes out the push plate 19 at the other end. The push plate 19 pushes open the oblique gate 14. The first and second sides are rotated to switch the second side (non-perforated) facing the direction of incoming water to the first side (perforated). Thus, the water in the reservoir can also be discharged from the flood discharge channel 2 below, effectively increasing the flood discharge efficiency. When the flood discharge volume is close to the discharge target ( When the reservoir water level is about to reach the opening of the U-shaped corrugated water pipe 6, the water flow discharged from the drainage pipe 11 gradually decreases. Under the thrust of the water flow, the oblique gate 14 is gradually pushed to close and abuts against the triangular abutment plate 16. Since the greater the water pressure, the tighter the oblique gate is closed, it can effectively play a blocking role, thereby closing the flood discharge channel 2 below. After the oblique gate 14 is closed, the push plate 19 also resets, which also drives the flip plate 18 to reset. Finally, the reservoir water level is lower than the opening of the U-shaped corrugated water pipe 6, the siphon effect stops, and the flood discharge is completed.

[0040] Example 2

[0041] like Figures 4-5 As shown, a reservoir flood discharge device, based on embodiment 1, has a telescopic push structure 21 installed at the bottom of the outer surface of the dam body 1, and the telescopic push structure 21 is located on both sides of the bottom of the drainage pipe 11. The telescopic push structure 21 can be either an electric telescopic structure or a hydraulic telescopic structure, and a push rod 22 is installed at the end of the telescopic push structure, with the end of the push rod 22 abutting against the flip plate 18.

[0042] The ends of the top of the installation slot 17 are provided with hydraulic lock rods 23, which limit the turnover plate 18 after being turned flat. The inner side of the dam body 1 is provided with a water level sensor, and the top of the dam body 1 is provided with a control box, which controls the telescopic pushing structure 21 and the hydraulic lock rod 23.

[0043] The water flow discharged by the drain pipe 11 can start the telescopic pushing structure 21 to push the push rod 22 when impacting the turnover plate 18 to turn, so that the push rod 22 pushes the turnover plate 18 to assist in turning, and after turning, the hydraulic lock rod 23 locks the already flat turnover plate 18, so that the turnover plate 18 can be prevented from turning up. After the water level sensor detects that the flood is about to be released to the specified water level, the hydraulic lock rod 23 and the telescopic pushing structure 21 can be loosened and returned to the original position, so that the turnover plate part is naturally reset.

[0044] The reservoir flood discharge device provided by the application can automatically stop discharging water after the flood discharge reaches the target, without manually controlling the closing of the water valve, and is more convenient to use. Meanwhile, the turnover plate can be turned and pushed by the water flow during the flood discharge process, so that the push plate pushes the bevel gate open, so that the water in the reservoir can be discharged from the lower flood discharge channel, effectively improving the flood discharge efficiency.

[0045] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A reservoir flood discharge device, comprising a dam body (1) and a flood discharge channel (2), a flood discharge channel (2) is opened at the bottom end of the dam body (1), characterized in that: The dam body (1) is provided with an inlet pipe (5) on the side facing the reservoir, the bottom end of the inlet pipe (5) is connected with a U-shaped corrugated water pipe (6), the water inlet of the other end of the U-shaped corrugated water pipe (6) is height-adjustable and is not higher than the flood discharge water level height in the reservoir; The dam body (1) is provided with a hump pipe (10) and a drainage pipe (11), one end of the hump pipe (10) is connected with the inlet pipe (5), the other end of the hump pipe (10) is connected with the drainage pipe (11), and the water outlet end of the drainage pipe (11) is not higher than the free end of the U-shaped corrugated water pipe (6); The free end of the U-shaped corrugated water pipe (6) is provided with a siphon device near the inlet pipe (5) or the drainage pipe (11) or the side of the drainage pipe (11) to form a siphon in the U-shaped corrugated water pipe (6), the inlet pipe (5) and the drainage pipe (11); The flood discharge channel (2) is provided with a bevel gate (14) rotatably connected with the flood discharge channel (2), one side of the bevel gate (14) is slidably connected with one end of a push plate (19), the other end of the push plate (19) is hingedly connected with a turnover plate (18), the turnover plate (18) is arranged at the outlet end of the flood discharge channel (2), and the top end of the turnover plate (18) is higher than the water outlet end of the drainage pipe (11); The water-approaching surface of the bevel gate (14) has a first side surface and a second side surface at an included angle, the first side surface is hollowed out, and the second side surface is not hollowed out; The inner side surface of the bevel gate (14) is provided with a limiting groove (20), and a roller shaft is arranged between the push plate (19) and the limiting groove (20); The siphon device is a negative pressure drainage device (13), the negative pressure drainage device (13) is arranged on the side of the drainage pipe (11), and at least one branch pipe (12) is arranged between the negative pressure drainage device (13) and the drainage pipe (11); The branch pipe (12) is two, which are a first inlet branch pipe and a second outlet branch pipe, and an electromagnetic valve is arranged at the connection between the first inlet branch pipe, the second outlet branch pipe and the drainage pipe (11), and a water flow sensor is arranged in the water outlet end of the second outlet branch pipe.

2. The dam flood releasing device according to claim 1, characterized in that: The free end of the U-shaped corrugated water pipe (6) is provided with a sleeve ring (7), the sleeve ring (7) is provided with a transmission rod (8), and the upper end of the transmission rod (8) is connected with a hydraulic rod (9).

3. The dam flood release device of claim 2, wherein: The outer surface of the transmission rod (8) is provided with a mark point corresponding to the water level line of the reservoir.

4. The dam flood releasing device according to claim 1, characterized in that: The dam body (1) is provided with a telescopic pushing structure (21), the distal end of the telescopic pushing structure (21) is provided with a push rod (22), and the free end of the push rod (22) abuts against the upper end of the turnover plate (18).

5. The dam flood releasing device according to claim 1, characterized in that: The outlet end of the flood discharge channel (2) is provided with a hydraulic lock rod (23), and the hydraulic lock rod (23) is used for locking the turnover plate (18) after being turned over and flattened.

6. The dam flood release device of claim 1, wherein: The outer side of the inlet pipe (5) is provided with a protective outer frame (3), and the outer side of the connection between the U-shaped corrugated water pipe (6) and the inlet pipe (5) is provided with a U-shaped bending rod (4).

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