Dredging structure suitable for water intake of rubber dam

Abstract

The utility model provides a desilting structure suitable for a water intake of a rubber dam, which comprises a sand flushing pump, a sand flushing main pipe is detachably mounted at the outlet end of the sand flushing pump, the tail end of the sand flushing main pipe extends to the bottom of the water intake, two branch pipes are fixed on the sand flushing main pipe in the water intake, and jet nozzles are fixedly mounted on the surfaces of the branch pipes at equal intervals. The bottom of the sand flushing main pipe is provided with a water filling pump installed in the water intake, the top of the sand flushing pump is provided with a chain block, and the top of the sand flushing pump is provided with a hook end connected with the chain block. And then sludge is discharged to the downstream through the water filling pump, the sludge is prevented from entering the rubber dam from the water intake, so that the operation reliability of the water filling pump is improved, the service life of the rubber dam is prolonged, and the convenience of device maintenance can be improved through the detachable lifting type sand flushing pump.

Description

Technical Field

[0001] This utility model relates to the field of dredging rubber dams in water conservancy projects, specifically a structure adapted to dredging the water intake of a rubber dam. Background Technology

[0002] The plains and lake areas are low-lying, and during the flood season, the river currents are rapid, carrying large amounts of silt that accumulates under the action of river-retaining structures. This is especially true for rubber dam intakes, which are recessed structures located at the bottom of the riverbed. Silt easily enters the dam's bag through the intake, affecting its safe operation. Therefore, the intake needs to be dredged and cleaned every one to two years. Furthermore, rubber dams also serve an irrigation function, preventing the reservoir from being emptied for dredging. This necessitates underwater operations, and traditional dredging methods are costly and cumbersome, making intake dredging a persistent problem for rubber dam operation and management units.

[0003] Therefore, a simple and efficient dredging method is invented, which can effectively remove silt from the water intake and extend the service life of the rubber dam. Utility Model Content

[0004] To address the shortcomings of existing technologies, and considering that riverbed sediments in plain lake areas are generally composed of silty clay and fine sand, which are easily dispersed under high-speed water flow conditions, the purpose of this utility model is to provide a dredging structure adapted to the intake of a rubber dam to solve the problems mentioned in the background. This utility model has a novel structure, adding a sand flushing pump near the intake of the rubber dam. The high-speed water flow disperses the silt, and then the silt is discharged downstream by a water pump, preventing the silt from entering the rubber dam from the intake. This improves the operational reliability of the water pump and extends the service life of the rubber dam. The detachable and liftable sand flushing pump also improves the convenience of device maintenance.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dredging structure adapted to the intake of a rubber dam, comprising a sand flushing pump, wherein a sand flushing main pipe is detachably installed at the outlet end of the sand flushing pump, and the tail end of the sand flushing main pipe extends to the bottom of the intake. Two branch pipes are fixed inside the intake of the sand flushing main pipe, and jet nozzles are fixedly installed at equal intervals on the surface of the branch pipes. A water pump installed inside the intake is provided at the bottom of the sand flushing main pipe. A hand chain hoist is provided on the top of the sand flushing pump, and a hook end connected to the hand chain hoist is installed on the top of the sand flushing pump.

[0006] Furthermore, a fixed support is provided on one side of the sand flushing pump, the bottom of the fixed support is fixed to the top of the water intake, and the sand flushing pump is slidably mounted on the surface of the fixed support via a sliding seat.

[0007] Furthermore, a frame is fixed to the top of the fixed support, and the winding end of the hand chain hoist is installed on the top of the frame.

[0008] Furthermore, a cable adapter box is installed on the top of the rack on one side of the hand chain hoist.

[0009] Furthermore, a support pier is provided between the fixed support and the top opening of the water intake, and the surface of the main flushing pipe is fixed to the top of the support pier.

[0010] Furthermore, the sand flushing pump is a fixed self-coupling submersible electric pump, and one end of the sand flushing pump is electrically connected to the cable junction box.

[0011] Furthermore, each of the branch pipes is equipped with four jet nozzles, and the jet nozzles are oriented towards the center of the water intake.

[0012] Furthermore, the water inlet of the flushing main pipe at the bottom faces between the two branch pipes.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model has the function of pumping water from the water intake to the downstream through the water intake filling pump. The high-speed jet of the branch pipe disperses the silt in the water intake, forming a water body with high silt content. The water intake filling pump operates in the downstream drainage mode, and the water body with high silt content from the water intake is discharged to the downstream through the water intake pump inlet.

[0015] 2. This utility model uses a high-speed jet delivered by a sand flushing pump, a sand flushing main pipe, and branch pipes to break up the silt accumulated in the water intake, forming a water body with a high silt content, which is convenient for subsequent pumping and cleaning.

[0016] 3. In this utility model, the sand flushing pump is placed at the bottom of the rubber dam management platform and close to the water intake. A maintenance frame is set on the top of the platform, and a hand-operated hoist is installed at the bottom to connect to the top of the sand flushing pump. The sand flushing pump is periodically moved to the platform for maintenance.

[0017] 4. In this utility model, the rubber dam cover at the bottom of the sand flushing pump is roughened, embedded with reinforcing bars, and then the secondary concrete is poured to serve as a fixed support for the sand flushing pump. The support piers are used to support the main sand flushing pipe and maintain stability when transporting high-speed fluid.

[0018] 5. Compared with the prior art, this utility model adds a sand flushing pump near the water intake of the rubber dam. It uses high-speed water flow to disperse the silt, and then uses a water pump to discharge the silt downstream, preventing the silt from entering the rubber dam from the water intake. This improves the operational reliability of the water pump and extends the service life of the rubber dam. Using the existing operating platform of the rubber dam to build a detachable and liftable sand flushing pump can improve the convenience of device maintenance. Attached Figure Description

[0019] Fig. 1 This is a schematic cross-sectional view of a water intake modification adapted to the dredging structure of a rubber dam water intake according to the present invention;

[0020] Fig. 2 This is a schematic diagram of the intake modification of a rubber dam intake dredging structure according to the present invention.

[0021] In the diagram: 10. Sand flushing pump; 11. Main sand flushing pipe; 12. Branch pipe; 13. Nozzle; 14. Fixed support; 15. Support pier; 21. Water pump; 30. Frame; 31. Hand chain hoist; 32. Cable junction box. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figs. 1-2 This utility model provides a technical solution: a structure adapted for dredging the intake of a rubber dam, including a sand flushing pump 10. A sand flushing main pipe 11 is detachably installed at the outlet end of the sand flushing pump 10, and the tail end of the sand flushing main pipe 11 extends to the bottom of the intake. Two branch pipes 12 are fixed inside the intake of the sand flushing main pipe 11, and jet nozzles 13 are fixedly installed at equal intervals on the surface of the branch pipes 12. A water filling pump 21 installed inside the intake is provided at the bottom of the sand flushing main pipe 11. A hand-operated hoist 31 is installed on the top of the sand flushing pump 10, and a hook end connected to the hand-operated hoist 31 is installed on the top of the sand flushing pump 10. When using the device, a submersible pump is arranged at the bottom of the operating platform closest to the intake as the sand flushing pump 10. The rubber dam paving at the bottom of the sand flushing pump 10 is roughened, reinforced with inserts, and then a second-stage concrete is poured to serve as a fixed support 1 for the sand flushing pump 10. 4. The outlet of the sand flushing pump 10 is connected to the main sand flushing pipe 11 to the bottom of the water intake, and then it is divided into two branch pipes 12. Each branch pipe 12 is connected to four jet nozzles 13, for a total of eight jet nozzles 13. The main sand flushing pipe 11 is fixed by a support 15 in the middle. The power supply for the sand flushing pump 10 is arranged in the workshop of the water filling pump 21 and is transmitted to the sand flushing pump 10 through the cable transfer box 32 arranged on the top of the frame 30. When cleaning the water intake, the sand flushing pump 10 is started 10 minutes in advance. The high-speed jet of the branch pipe 12 will break up the silt in the water intake and form a water body with high sediment content. The water filling pump 21 is then turned on to discharge the water body with high sediment content to the downstream to achieve the purpose of dredging. Considering the need for maintenance, a maintenance frame 30 is set on the top of the platform and a hand chain hoist 31 is set at the bottom. The sand flushing pump 10 is regularly moved to the platform for maintenance to ensure that the sand flushing pump 10 can operate for a long time and to ensure the effectiveness of the dredging plan.

[0024] In this embodiment, a fixed support 14 is provided on one side of the sand flushing pump 10. The bottom of the fixed support 14 is fixed to the top of the water intake, and the sand flushing pump 10 is slidably mounted on the surface of the fixed support 14 through a sliding seat. A support 15 is provided between the fixed support 14 and the top opening end of the water intake. The surface of the sand flushing main pipe 11 is fixed to the top of the support 15. A submersible pump is selected to be arranged at the bottom of the operating platform that is closer to the water intake as the sand flushing pump 10. The rubber dam cover at the bottom of the sand flushing pump 10 is roughened, and the reinforcing bars are inserted and the secondary concrete is poured to serve as the fixed support 14 of the sand flushing pump 10. The support 15 is used to support the sand flushing main pipe 11 and maintain the stability when conveying high-speed fluid.

[0025] In this embodiment, a frame 30 is fixed to the top of the fixed support 14, and the winding end of the hand chain hoist 31 is installed on the top of the frame 30. A cable junction box 32 is installed on the top of the frame 30 on one side of the hand chain hoist 31. In order to facilitate inspection and maintenance, the sand flushing pump 10 is arranged at the bottom of the rubber dam management platform and close to the water intake. An inspection frame 30 is set on the top of the platform, and a hand chain hoist 31 is set at the bottom to connect with the top of the sand flushing pump 10. The sand flushing pump 10 is periodically moved to the platform for inspection and maintenance.

[0026] In this embodiment, the sand flushing pump 10 is a fixed self-coupling submersible electric pump, and one end of the sand flushing pump 10 is electrically connected to the cable transfer box 32. The power supply of the sand flushing pump 10 is arranged in the water pump 21 workshop and is transmitted to the sand flushing pump 10 through the cable transfer box 32 arranged on the top of the frame 30. The submersible electric pump with reasonable flow rate, head and power is selected according to actual needs.

[0027] In this embodiment, four jet nozzles 13 are installed on the surface of each branch pipe 12, and the jet nozzles 13 face the middle of the water intake. A total of eight jet nozzles 13 are installed on the two branch pipes 12, facing the middle of the water intake. The high-speed jet sent by the sand flushing pump 10, the sand flushing main pipe 11 and the branch pipes 12 disperses the silt accumulated in the water intake, forming a water body with high silt content, which is convenient for subsequent pumping and cleaning.

[0028] In this embodiment, the inlet of the water pump 21 at the bottom of the main flushing pipe 11 faces between the two branch pipes 12. The water pump 21 has the function of pumping water from the water intake to the downstream. The high-speed jet of the branch pipe 12 disperses the silt in the water intake, forming a water body with high sediment content. The water pump 21 operates in the downstream drainage mode, and the water body with high sediment content from the water intake is discharged to the downstream through the inlet of the water pump 21.

[0029] When using the device, a submersible pump is selected and placed at the bottom of the operating platform closest to the water intake as the sand flushing pump 10. The rubber dam cover at the bottom of the sand flushing pump 10 is roughened, and reinforcing bars are inserted and secondary concrete is poured to serve as the fixed support 14 for the sand flushing pump 10. The outlet of the sand flushing pump 10 is connected to the main sand flushing pipe 11 to the bottom of the water intake, and then it splits into two branch pipes 12. Each branch pipe 12 is connected to four jet nozzles 13, for a total of eight jet nozzles 13. A support 15 is set in the middle of the main sand flushing pipe 11 for fixation. The power supply for the sand flushing pump 10 is arranged in the water pump 21 workshop, through... The cable transfer box 32 arranged on the top of the frame 30 transmits to the sand flushing pump 10. When dredging the water intake, the sand flushing pump 10 is started 10 minutes in advance. The high-speed jet of the branch pipe 12 disperses the silt in the water intake, forming a water body with high sediment content. The water filling pump 21 is then turned on to discharge the water body with high sediment content downstream to achieve the purpose of dredging. Considering the need for maintenance, a maintenance frame 30 is set on the top of the platform, and a hand chain hoist 31 is set at the bottom. The sand flushing pump 10 is regularly moved to the platform for maintenance to ensure that the sand flushing pump 10 can operate for a long time and to ensure the effectiveness of the dredging plan.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dredging structure adapted for the intake of a rubber dam, comprising a sand flushing pump (10), characterized in that: The outlet end of the sand flushing pump (10) is detachably equipped with a sand flushing main pipe (11), and the tail end of the sand flushing main pipe (11) extends to the bottom of the water intake. The sand flushing main pipe (11) is located inside the water intake and has two branch pipes (12) fixedly installed. Jet nozzles (13) are fixedly installed at equal intervals on the surface of the branch pipes (12). The bottom of the sand flushing main pipe (11) is equipped with a water pump (21) installed inside the water intake. The top of the sand flushing pump (10) is equipped with a hand chain hoist (31), and the top of the sand flushing pump (10) is equipped with a hook end connected to the hand chain hoist (31).

2. The dredging structure adapted to the intake of a rubber dam according to claim 1, characterized in that: A fixed support (14) is provided on one side of the sand flushing pump (10). The bottom of the fixed support (14) is fixed to the top of the water intake, and the sand flushing pump (10) is slidably mounted on the surface of the fixed support (14) through a sliding seat.

3. A dredging structure adapted to the intake of a rubber dam according to claim 2, characterized in that: The top of the fixed support (14) is fixed with a frame (30), and the winding end of the hand chain hoist (31) is installed on the top of the frame (30).

4. A dredging structure adapted to the intake of a rubber dam according to claim 3, characterized in that: A cable junction box (32) is installed on the top of the rack (30) on one side of the hand chain hoist (31).

5. A dredging structure adapted to the intake of a rubber dam according to claim 2, characterized in that: A support pier (15) is provided between the fixed support (14) and the top opening of the water intake, and the surface of the sand flushing main pipe (11) is fixed on the top of the support pier (15).

6. A dredging structure adapted to the intake of a rubber dam according to claim 2, characterized in that: The sand flushing pump (10) is a fixed self-coupling submersible electric pump, and one end of the sand flushing pump (10) is electrically connected to the cable junction box (32).

7. A dredging structure adapted to the intake of a rubber dam according to claim 1, characterized in that: Each branch pipe (12) is equipped with four jet nozzles (13), and the jet nozzles (13) face the middle of the water intake.

8. A dredging structure adapted to the intake of a rubber dam according to claim 1, characterized in that: The water inlet of the water pump (21) at the bottom of the main flushing pipe (11) faces between the two branch pipes (12).

Images