Reservoir flood discharge device

Abstract

The invention provides a reservoir flood discharge device which comprises a dam body and a flood discharge channel, a water inlet pipe is arranged on the side, facing a reservoir, of the dam body, the bottom end of the water inlet pipe is communicated with a U-shaped corrugated water pipe, and the height of a water inlet in the other end of the U-shaped corrugated water pipe is adjustable and is not higher than the height of the flood discharge water level in the reservoir; a hump pipe and a drainage pipe are arranged on the dam body, one end of the hump pipe is communicated with the water inlet pipe, and the other end of the hump pipe is communicated with the drainage pipe; the water outlet end of the drainage 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 the water outlet pipe or on the side of the water outlet pipe so that siphoning can be formed in the U-shaped corrugated water pipe, the water inlet pipe and the water outlet pipe. The height of the pipe opening of the free end of the U-shaped corrugated water pipe is adjusted to reach the flood discharge target water level line, drainage can be automatically stopped after flood discharge reaches the target, and manual control over closing of a water valve is not needed.

Description

Technical Field

[0001] The invention relates to the field of water conservancy projects, and in particular to a reservoir flood discharge device. Background Art

[0002] A reservoir is an important water storage and drainage facility in a water conservancy project. It can discharge flood water and store water during the rainy season, and release water for irrigation during the dry season. It is very practical. During the rainy season, when the water volume is too large, the reservoir needs to discharge flood water.

[0003] The existing reservoirs are built with dams at the outlets of the reservoirs, and gates are set inside the dams. When the water level of the reservoir reaches the specified position, the gates are closed. However, the gates need to be guarded by humans at all times, and the flood discharge speed is not fast enough, so the flood discharge time is relatively long. Summary of the invention

[0004] The purpose of the present invention is to provide a reservoir flood discharge device in view of the above-mentioned problems.

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

[0006] A reservoir flood discharge device comprises a dam body and a flood discharge channel, wherein the bottom end of the dam body is provided with 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, and the water inlet height at the other end of the U-shaped corrugated water pipe is adjustable and is not higher than the flood discharge level in the reservoir;

[0007] The dam body is provided with a hump pipe and a drainage pipe, one end of the hump pipe is connected to the water inlet pipe, and the other end of the hump pipe is connected to the drainage pipe; the water outlet end of the drainage pipe is not higher than the free end of the U-shaped corrugated water pipe;

[0008] A siphon device is provided 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;

[0009] A bevel gate rotatably connected to the flood discharge channel is provided in the flood discharge channel, one side of the bevel gate is slidably connected to one end of a push plate, the other end of the push plate is hinged to a flip plate, the flip plate is provided at the outlet end of the flood discharge channel, and the top end of the flip plate is higher than the water outlet end of the drain pipe;

[0010] The water-facing surface of the miter gate comprises a first side surface and a second side surface which are at an angle, wherein the first side surface is hollowed out and the second side surface is not hollowed out.

[0011] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

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

[0013] As a preferred technical solution of the present invention: there are two branch pipes, namely a first water inlet branch pipe and a second water outlet branch pipe, solenoid valves are provided at the connections between the first water inlet branch pipe and the second water outlet branch pipe and the drain pipe, and a water flow sensor is provided in the water outlet end of the second water outlet branch pipe.

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

[0015] As a preferred technical solution of the present invention: a collar is provided on the free end of the U-shaped corrugated water pipe, a transmission rod is provided on the collar, and the upper end of the transmission rod is connected to the hydraulic rod.

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

[0017] As a preferred technical solution of the present invention: a limiting groove is provided on the inner side surface of the miter gate, and a roller is provided between the push plate and the limiting groove.

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

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

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

[0021] As a preferred technical solution of the present invention: a hydraulic locking rod is provided near the outlet end of the flood discharge channel, and the hydraulic locking rod is used to lock the flip plate after it is flipped and straightened.

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

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

[0024] As a preferred technical solution of the present invention: a control box is installed on the top of the dam body, and the control box is used to control the telescopic driving structure, the hydraulic locking rod, the negative pressure drainer, the solenoid valve, the water pump, and the hydraulic rod.

[0025] The present invention provides a reservoir flood discharge device, which can automatically stop draining water after the flood discharge reaches the target by adjusting the pipe mouth height of the free end of the U-shaped corrugated water pipe to the flood discharge target water level line, without the need for manual control of the closing of the water valve, and is more convenient to use. At the same time, the impact of the water flow during the flood discharge process can be used to flip the flip plate to push the push plate, so that the push plate pushes the miter gate open, so that the water in the reservoir can be discharged from the flood discharge channel below, effectively improving the flood discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a diagram showing the overall structure of the reservoir flood discharge device provided by the present invention;

[0027] Figure 2 A diagram showing the structure of one side of the reservoir flood discharge device provided by the present invention;

[0028] Figure 3 This is a structural diagram of the other side of the reservoir flood discharge device provided by the present invention;

[0029] Figure 4 It is a structural diagram of the flip plate position;

[0030] Figure 5 It is a structural diagram showing the flip plate in a flipped state;

[0031] Figure 6 It is a diagram of the structure of the miter gate;

[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. drainage pipe; 12. branch pipe; 13. negative pressure drain; 14. bevel gate; 15. arc strength plate; 16. triangular abutment plate; 17. installation notch; 18. flip plate; 19. push plate; 20. limit groove; 21. telescopic push structure; 22. push rod; 23. hydraulic locking rod. DETAILED DESCRIPTION

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

[0034] Example 1

[0035] like Figure 1-6As shown, a reservoir flood discharge device comprises a dam body 1 and a flood discharge channel 2, the bottom end of the dam body 1 is provided with the flood discharge channel 2, a protective outer frame 3 is fixedly installed on the side of the dam body 1 facing the reservoir, a U-shaped bending rod 4 is arranged at the bottom of the protective outer frame 3, a water inlet pipe 5 is installed inside the protective outer frame 3, the bottom end of the water inlet pipe 5 is connected with a U-shaped corrugated water pipe 6, a collar 7 is installed at the pipe mouth of the U-shaped corrugated water pipe 6, the top end of the collar 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 drainage pipe 11, and the drainage pipe 11 is connected along the dam body 1 It is laid obliquely downward, and the top of the drainage pipe 11 is connected to a branch pipe 12, and the branch pipe 12 is connected to a negative pressure drain 13. A miter gate 14 is hinged inside the flood discharge channel 2, and an arc-shaped strength plate 15 is provided on the surface of the miter gate 14 facing the reservoir. A triangular abutment plate 16 is fixedly installed on the top of the flood discharge channel 2, and the triangular abutment plate 16 abuts against the inner side of the miter gate 15. An installation slot 17 is provided at the end of the flood discharge channel 2, and a flip plate 18 is hinged inside the installation slot 17. A push plate 19 is hinged at the bottom end of the flip plate 18, and the other end of the push plate 19 abuts against the inner side of the miter gate 14, and the top of the flip plate 18 is higher than the pipe mouth of the drainage pipe 11.

[0036] The water inlet and outlet ends where the branch pipe 12 is connected to the drain pipe 11 are both equipped with solenoid valves to control the water flow, and a water flow sensor is installed inside the water outlet end.

[0037] A limiting groove 20 is provided on the inner surface of the miter gate 14, and a roller or a wheel is provided on the top of the push plate 19, and the roller or the wheel is located inside the limiting groove 20. The push plate 19 pushes the miter gate 14 inside the limiting groove 20 to avoid pushing too far and affecting the closing of the miter gate 14. The roller or the wheel can reduce the friction between the miter gate and the pushing is smoother.

[0038] The surface of the transmission rod 8 is provided with corresponding marking points according to the water level of the reservoir, so as to facilitate the adjustment of 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 pipe mouth of the U-shaped corrugated water pipe 6 below. The specific height is adjusted according to the required flood discharge amount. The pipe mouth of the U-shaped corrugated water pipe 6 is adjusted to the water level line of the reservoir after flood discharge. The U-shaped corrugated water pipe 6 swings around the bending rod 4 as a fulcrum during the process of adjusting the height up and down to avoid shaking caused by pulling the water inlet pipe 5. Then the solenoid valve at the outlet end of the branch pipe 12 is closed, and the negative pressure drainer 13 is started to make the hump pipe 10 and the drainage pipe 5 Negative pressure is formed at the front end of the water pipe 11, and the water in the reservoir flows along the U-shaped corrugated water pipe 6, the water inlet pipe 5, the hump pipe 10, and the front end of the water inlet pipe 5 into the negative pressure drain device 13. In order to enhance the introduction of water flow, a centrifugal water pump can be set at the lowest end of the water inlet pipe 5 (a centrifugal water pump can also be used alone to form a siphon) so that the water flow can be better sucked in. The water flow sensor at the outlet end of the branch pipe 12 opens the solenoid valve at the outlet end after receiving the drainage signal from the negative pressure drain device 13, and waits for the end of the drain pipe 11 to drain. 2 and the drain pipe 11 are all closed, and the water in the reservoir is pumped out and discharged under the siphon effect. The water discharged from the drain pipe 11 flushes on the flip plate 18, and the flip plate 18 is flipped by force to push out the push plate 19 at the other end. The push plate 19 pushes the miter gate 14 open, and the first side surface and the second side surface are rotated to switch the second side surface (non-hollow) facing the incoming water direction to the first side surface (hollow), so that 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 ( That is, when the reservoir water level is about to reach the mouth of the U-shaped corrugated water pipe 6, the water flow discharged from the drainage pipe 11 gradually becomes smaller, and the miter gate 14 is gradually pushed closed and abutted against the triangular abutment plate 16 under the thrust of the water flow. Since the greater the water pressure, the tighter the miter gate is closed, the more effective it can be in blocking effect, thereby closing the flood discharge channel 2 below. After the miter gate 14 is closed, the push plate 19 is also reset, which also drives the flip plate 18 to reset. Finally, the reservoir water level is lower than the mouth of the U-shaped corrugated water pipe 6, the siphon effect stops, and the flood discharge is completed.

[0040] Example 2

[0041] like Figure 4-5 As shown, a reservoir flood discharge device is provided. On the basis of Example 1, a telescopic push structure 21 is 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 drain pipe 11. The telescopic push structure 21 can be any one of an electric telescopic structure and a hydraulic telescopic structure, and a push rod 22 is installed at the end of the telescopic push structure, and the end of the push rod 22 is against the flip plate 18.

[0042] Hydraulic locking rods 23 are installed on both sides of the top of the end of the installation slot 17. The hydraulic locking rods 23 limit the flip plate 18 after it is flipped straight. A water level sensor is installed on the inner side of the dam body 1. A control box is installed on the top of the dam body 1. The control box controls the telescopic driving structure 21 and the hydraulic locking rods 23.

[0043] When the water discharged from the drain pipe 11 impacts the flip plate 18 to flip, the telescopic pushing structure 21 can be activated to push the push rod 22, so that the push rod 22 pushes the flip plate 18 to assist in flipping, and after flipping, the hydraulic locking rod 23 locks the flat flip plate 18, thereby preventing the flip plate 18 from flipping up. After the water level sensor detects that the flood is about to be discharged to the specified water level, the hydraulic locking rod 23 and the telescopic pushing structure 21 can be loosened and returned to their positions, so that the flip plate part is naturally reset.

[0044] The present invention provides a reservoir flood discharge device, which can automatically stop draining water after the flood discharge reaches the target by adjusting the pipe mouth height of the free end of the U-shaped corrugated water pipe to the flood discharge target water level line, without the need for manual control of the closing of the water valve, and is more convenient to use. At the same time, the impact of the water flow during the flood discharge process can be used to flip the flip plate to push the push plate, so that the push plate pushes the miter gate open, so that the water in the reservoir can be discharged from the flood discharge channel below, effectively improving the flood discharge efficiency.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reservoir flood discharge device, comprising a dam body (1) and a flood discharge channel (2), wherein the bottom end of the dam body (1) is provided with a flood discharge channel (2). Features: The dam body (1) is provided with a water inlet pipe (5) on the side facing the reservoir, the bottom end of the water inlet pipe (5) is connected to a U-shaped corrugated water pipe (6), and the height of the water inlet at the other end of the U-shaped corrugated water pipe (6) is adjustable and is not higher than the flood discharge level 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 to the water inlet pipe (5), and the other end of the hump pipe (10) is connected to the drainage pipe (11); the water outlet end of the drainage pipe (11) is not higher than the free end of the U-shaped corrugated water pipe (6); A siphon device is provided near the free end of the U-shaped corrugated water pipe (6) or in the water inlet pipe (5) or in the drainage pipe (11) or on the side of the drainage pipe (11) so as to form a siphon in the U-shaped corrugated water pipe (6), in the water inlet pipe (5) and in the drainage pipe (11); The flood discharge channel (2) is provided with a bevel gate (14) rotatably connected to the flood discharge channel (2), one side of the bevel gate (14) is slidably connected to one end of a push plate (19), the other end of the push plate (19) is hinged to a flip plate (18), the flip plate (18) is arranged at the outlet end of the flood discharge channel (2), and the top end of the flip plate (18) is higher than the water outlet end of the drainage pipe (11); The water-facing surface of the miter gate (14) comprises a first side surface and a second side surface which are at an angle, wherein the first side surface is hollowed out and the second side surface is not hollowed out.

2. The reservoir flood discharge device according to claim 1, Features: The siphon device is a negative pressure drainer (13), which is arranged on the side of the drainage pipe (11), and at least one branch pipe (12) is arranged between the negative pressure drainer (13) and the drainage pipe (11).

3. The reservoir flood discharge device according to claim 2, Features: There are two branch pipes (12), namely a first water inlet branch pipe and a second water outlet branch pipe. Solenoid valves are provided at the connection between the first water inlet branch pipe and the second water outlet branch pipe and the drain pipe (11), and a water flow sensor is provided in the water outlet end of the second water outlet branch pipe.

4. The reservoir flood discharge device according to claim 1, Features: The siphon device is a water pump, which is arranged near the free end of the U-shaped corrugated water pipe (6) or in the water inlet pipe (5) or in the drainage pipe (11).

5. The reservoir flood discharge device according to claim 1, Features: A collar (7) is provided on the free end of the U-shaped corrugated water pipe (6), a transmission rod (8) is provided on the collar (7), and the upper end of the transmission rod (8) is connected to a hydraulic rod (9).

6. The reservoir flood discharge device according to claim 5, Features: The outer surface of the transmission rod (8) is provided with a marking point corresponding to the water level line of the reservoir.

7. The reservoir flood discharge device according to claim 1, Features: A limiting groove (20) is provided on the inner side surface of the bevel gate (14), and a roller is provided between the push plate (19) and the limiting groove (20).

8. The reservoir flood discharge device according to claim 1, Features: The dam body (1) is provided with a telescopic pushing structure (21), the 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 flip plate (18).

9. The reservoir flood discharge device according to claim 1, Features: A hydraulic locking rod (23) is provided near the outlet end of the flood discharge channel (2), and the hydraulic locking rod (23) is used to lock the flip plate (18) after flipping and straightening.

10. The reservoir flood discharge device according to claim 1, Features: A protective outer frame (3) is provided on the outside of the water inlet pipe (5), and a U-shaped bending rod (4) is provided on the outside of the connection between the U-shaped corrugated water pipe (6) and the water inlet pipe (5).

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