Steel dam gate with silt flushing structure
By introducing high-pressure sludge pumps and duckbill spray heads into the steel dam gate, the problem of poor gate operation caused by sediment deposition is solved, sludge cleaning and negative pressure reduction are achieved, and the normal operation and structural integrity of the sluice gate are ensured.
Patent Information
- Application Number
- CN202421569579.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-04
AI Technical Summary
In the existing steel dam gate design, the sediment carried in the water flow is deposited in the gate chamber area, hindering the smooth operation of the gate and threatening engineering safety.
A steel dam gate with a sludge structure is designed, equipped with a high-pressure sludge pump and a duckbill spray head. The sludge is cleaned up through high-pressure water flow to ensure smooth operation of the gate and reduce negative pressure when closed.
Effectively remove silt in the gate, ensure the normal operation of the dam and sluice, maintain the structural integrity of the sluice, and prevent the gate operation from being obstructed.
Smart Images
Figure CN223163833U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy projects, and particularly relates to a steel dam gate with a silt flushing structure. Background Art
[0002] A steel dam gate, also known as a bottom shaft driven flap gate, is a new type of gate that can achieve two-way water retaining, flexible opening and closing, stepless adjustment of the gate opening, convenient scheduling, engineering concealment, no obstruction to flood control and navigation, and improvement of the river channel landscape.
[0003] In the currently used gate design, the bottom shaft is fixed on the bottom sill of the gate, and the height of the top of the gate is adjusted by the rotation of the bottom shaft to achieve the purpose of controlling the water level. When the gate is in the fully open state, it will retract into the gate chamber at a lower water level. However, since the sediment carried in the water flow will deposit in the gate chamber area, this may hinder the smooth operation of the gate and pose a threat to the safety of the entire project. Content of the Utility Model
[0004] The purpose of the utility model is to provide a steel dam gate with a silt flushing structure to solve the problem in the prior art that the sediment carried in the water flow will deposit in the gate chamber area, thereby hindering the smooth operation of the gate.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A steel dam gate with a silt flushing structure includes a bottom shaft rotating on the bottom sill of the gate and a gate leaf fixedly connected to the side wall of the bottom shaft. A cleaning mechanism is arranged inside the gate leaf, and the cleaning mechanism is used to clean the silt deposited in the gate chamber area. The cleaning mechanism includes a high-pressure sludge pump and a total water outlet pipe. The high-pressure sludge pumps are fixedly connected to the inside of the gate leaf at equal intervals. An inlet is arranged at the left end of the gate leaf, and the inlet is connected to the high-pressure sludge pump.
[0007] Preferably: The lower end of the high-pressure sludge pump is fixedly connected to the total water outlet pipe, and the free end of the total water outlet pipe penetrates through to the right end of the gate leaf.
[0008] Preferably: The total water outlet pipe located at the right end of the gate leaf surrounds the side wall of the bottom shaft.
[0009] Preferably: Upper water outlet branch pipes and lower water outlet branch pipes are fixedly connected between multiple groups of the total water outlet pipes, and first duckbill nozzles are fixedly connected to the side wall of the upper water outlet branch pipe at equal intervals.
[0010] Preferably: Second duckbill nozzles are fixedly connected to the side wall of the lower water outlet branch pipe at equal intervals.
[0011] Preferably: The first duckbill nozzles and the second duckbill nozzles are perpendicular to the side wall of the bottom shaft.
[0012] Preferably, both the first duckbill nozzle and the second duckbill nozzle are inclined at an angle of 45 degrees with respect to the horizontal plane.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. By starting the high-pressure sludge pump to generate high-pressure water flow, when the gate leaf rotates to open the gate, the high-pressure water flow sprayed by the second duckbill nozzle is used to effectively clean the silt in the gate chamber, thereby ensuring the normal operation of the dam and the sluice.
[0015] 2. During the process of the gate leaf rotating in the reverse direction to close the gate, by activating the high-pressure sludge pump, the high-pressure water flow is ejected through the first and second duckbill nozzles. This can not only effectively remove the silt in the gate chamber, but also help reduce the negative pressure generated when the gate leaf rotates upward by increasing the pressure in the gate chamber. Such a design helps to maintain the integrity of the sluice structure and achieve the protection of the sluice. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic front view of the overall structure of the present utility model;
[0017] Figure 2 is a schematic view of the opened gate leaf structure of the present utility model;
[0018] Figure 3 is a schematic side view of the overall structure of the present utility model;
[0019] Figure 4 is the present utility model Figure 3 is an enlarged schematic view of part A in the present utility model.
[0020] In the figure: 1. Bottom shaft; 2. Gate leaf; 3. Cleaning mechanism; 31. High-pressure sludge pump; 32. Water inlet; 33. Total water outlet pipe; 34. Upper water outlet branch pipe; 35. Lower water outlet branch pipe; 36. First duckbill nozzle; 37. Second duckbill nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Refer to Figure 1As shown in the figure, the utility model provides a steel dam gate with a scouring and silting structure, which includes a bottom shaft 1 rotating on the bottom sill of the gate and a gate leaf 2 fixedly connected to the side wall of the bottom shaft 1. A cleaning mechanism 3 is arranged inside the gate leaf 2, and the cleaning mechanism 3 is used to clean the silt deposited in the gate chamber area. The cleaning mechanism 3 includes a high-pressure sludge pump 31 and a total outlet pipe 33. The high-pressure sludge pumps 31 are fixedly connected at equal intervals inside the gate leaf 2. An inlet 32 is arranged at the left end of the gate leaf 2, and the inlet 32 is connected to the high-pressure sludge pump 31. Through the arranged cleaning mechanism 3, on the one hand, it can clean the silt inside the gate chamber during the process of opening the gate, and on the other hand, when closing the gate, it can not only effectively remove the silt in the gate chamber, but also reduce the possible negative pressure inside the gate chamber, thereby maintaining the integrity of the sluice structure and realizing the protection of the sluice.
[0023] In a further embodiment, referring to Figure 1 , the lower end of the high-pressure sludge pump 31 is fixedly connected to a total outlet pipe 33, and the free end of the total outlet pipe 33 penetrates through to the right end of the gate leaf 2.
[0024] In this embodiment, by arranging the total outlet pipe 33 on the right side of the gate leaf 2, it can ensure that the water flow effectively enters the gate chamber interior, achieving the cleaning effect of the silt.
[0025] In a further embodiment, referring to Figure 1 , the total outlet pipe 33 located at the right end of the gate leaf 2 is wound around the side wall of the bottom shaft 1.
[0026] In this embodiment, by winding and fixing the total outlet pipe 33 around the side wall of the bottom shaft 1, the total outlet pipe 33 can rotate along with the rotation of the bottom shaft 1, thereby adjusting the spraying directions of the first duckbill nozzle 36 and the second duckbill nozzle 37, providing the required power for the scouring and silting operation.
[0027] In a further embodiment, referring to Figures 1-4 , upper outlet branch pipes 34 and lower outlet branch pipes 35 are fixedly connected between multiple groups of total outlet pipes 33. First duckbill nozzles 36 are fixedly connected at equal intervals on the side wall of the upper outlet branch pipes 34, and second duckbill nozzles 37 are fixedly connected at equal intervals on the side wall of the lower outlet branch pipes 35.
[0028] In this embodiment, by arranging the upper outlet branch pipes 34 and the lower outlet branch pipes 35 connected to the total outlet pipe 33, installing the first duckbill nozzles 36 on the upper outlet branch pipes 34, and installing the second duckbill nozzles 37 on the lower outlet branch pipes 35, the high-pressure water flow flows from the total outlet pipe 33 into these two branch pipes and is sprayed out through these two duckbill nozzles, achieving the purpose of silt cleaning.
[0029] In a further embodiment, referring to Figures 1-2 , the first duckbill nozzles 36 and the second duckbill nozzles 37 are perpendicular to the side wall of the bottom shaft 1.
[0030] In this embodiment, the vertically arranged nozzle can ensure that the water flow impacts the silt in the lock chamber at the best angle, improving the dredging efficiency.
[0031] In a further embodiment, referring to Figures 1-2 , both the first duckbill nozzle 36 and the second duckbill nozzle 37 are inclined at an angle of 45 degrees to the horizontal plane.
[0032] In this embodiment, by setting both the first duckbill nozzle 36 and the second duckbill nozzle 37 at an angle of 45 degrees to the horizontal plane, the initial positions of the first duckbill nozzle 36 and the second duckbill nozzle 37 are determined, so that the high-pressure water flow ejected during the opening of the gate can effectively reduce the resuspension of sediments. Such a water flow direction is conducive to pushing the silt downstream, thereby reducing the accumulation of sediments.
[0033] The working principle of the present utility model is as follows: Before opening the gate, the high-pressure sludge pump 31 can be started to allow the water source on the left side of the gate leaf 2 to flow into the outlet main pipe 33 through the water inlet 32, thereby forming a high-pressure water flow in the outlet main pipe 33. The high-pressure water flow then flows from the outlet main pipe 33 into these two branch pipes and is ejected through these two duckbill nozzles, so as to be able to clean the silt inside the lock chamber. At the same time, when the gate leaf 2 is opened, the first duckbill nozzle 36 and the second duckbill nozzle 37 rotate with the bottom shaft 1, increasing the scope of silt cleaning inside the lock chamber, enabling the gate to move smoothly into the lock chamber, thereby ensuring the normal operation of the dam and the lock.
[0034] When closing the gate, by starting the high-pressure sludge pump 31, the high-pressure water flow ejected through the first duckbill nozzle 36 and the second duckbill nozzle 37 can, on the one hand, play a pressurizing effect on the inside of the lock chamber, helping to reduce the negative pressure generated when the gate leaf 2 rotates upward, and on the other hand, clean the silt inside the lock chamber through the high-pressure water flow.
[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A steel dam gate with a scouring and silting structure, comprising a bottom shaft (1) rotatably mounted on a bottom sill and a gate leaf (2) fixedly connected to the side wall of the bottom shaft (1), characterized in that, A cleaning mechanism (3) is arranged inside the gate leaf (2). The cleaning mechanism (3) is used to clean the silt deposited in the lock chamber area. The cleaning mechanism (3) includes a high-pressure sludge pump (31) and a main outlet pipe (33). The high-pressure sludge pump (31) is fixedly connected inside the gate leaf (2) at equal intervals. An inlet (32) is arranged at the left end of the gate leaf (2), and the inlet (32) is connected to the high-pressure sludge pump (31).
2. The steel dam gate with a scouring and silting structure according to claim 1, wherein: The lower end of the high-pressure sludge pump (31) is fixedly connected to the main outlet pipe (33), and the free end of the main outlet pipe (33) penetrates to the right end of the gate leaf (2).
3. The steel dam gate with a scouring and silting structure according to claim 2, characterized in that: The main outlet pipe (33) located at the right end of the gate leaf (2) surrounds and is on the side wall of the bottom shaft (1).
4. The steel dam gate with a scouring and silting structure according to claim 2, characterized in that: Upper outlet branch pipes (34) and lower outlet branch pipes (35) are fixedly connected between multiple groups of the main outlet pipes (33). The side wall of the upper outlet branch pipe (34) is fixedly connected with first duckbill nozzles (36) at equal intervals.
5. The steel dam gate with a scouring and silting structure according to claim 4, wherein: The side wall of the lower outlet branch pipe (35) is fixedly connected with second duckbill nozzles (37) at equal intervals.
6. The steel dam gate with a scouring and silting structure according to claim 5, characterized in that: The first duckbill nozzles (36) and the second duckbill nozzles (37) are perpendicular to the side wall of the bottom shaft (1).
7. A steel dam gate with a scouring and silting structure according to claim 5, characterized in that: Both the first duckbill nozzles (36) and the second duckbill nozzles (37) are inclined at an angle of 45 degrees to the horizontal plane.