Reservoir communicating water-conveying tunnel overhauling and desilting structure

Abstract

The utility model relates to the technical field of water conservancy projects, and provides a reservoir communicating water delivery tunnel maintenance desilting structure which comprises a desilting main pipe arranged at the bottom of a tunnel and a plurality of desilting branch pipes communicating with the desilting main pipe, and the desilting branch pipes are arranged in the length direction of the desilting main pipe at intervals; the tops of the sand discharging branch pipes extend to the bottom face of the tunnel, and gates are arranged at an inlet and an outlet of the tunnel. A control valve is arranged at the outlet end of the desilting main pipe, the inlet end of the desilting main pipe is closed, filter plates are arranged on the bottom face of the tunnel, a plurality of filter holes are formed in the filter plates, the filter plates are arranged at intervals in the length direction of the desilting main pipe, and the filter plates are arranged on the sides, close to an outlet of the tunnel, of the desilting branch pipes. The sand discharging device has the beneficial effect that the sand discharging efficiency of silt is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water conservancy projects, in particular to a reservoir connecting water conveying tunnel maintenance desilting structure. BACKGROUND

[0002] In water conservancy projects, the reservoir connecting water conveying tunnel is prone to deposit sediment along the bottom due to its low elevation, and these sediments need to be cleaned regularly. The traditional cleaning method is generally to pump out the accumulated water in the water conveying tunnel, and then manually or mechanically clean the sediment along the bottom. This method has high water pumping cost, low sediment cleaning efficiency, long period, and even affects the normal water supply time of the water conveying tunnel.

[0003] To this end, in the prior art, a desilting main pipe is arranged at the bottom of the tunnel, desilting branch pipes are arranged at the bottom of the tunnel along the length direction of the desilting main pipe, and control valves are arranged at the entrances and exits of the desilting main pipe. When the accumulated sediment reaches a certain amount, the control valves are opened, and the water pressure in the tunnel can achieve the effect of cleaning the sediment.

[0004] Since water has a certain flow speed, if the sediment is allowed to fall by gravity and enter the desilting main pipe from the desilting branch pipe, the time taken to reach a certain amount is relatively long, and the desilting efficiency is relatively low, so further improvement is needed. CONTENT OF THE INVENTION

[0005] In order to improve the desilting efficiency of sediment, the present application provides a reservoir connecting water conveying tunnel maintenance desilting structure.

[0006] The reservoir connecting water conveying tunnel maintenance desilting structure provided by the present application adopts the following technical scheme:

[0007] A reservoir connecting water conveying tunnel maintenance desilting structure, comprising a desilting main pipe arranged at the bottom of the tunnel and a desilting branch pipe connected to the desilting main pipe, the desilting branch pipes are arranged at intervals along the length direction of the desilting main pipe, the top of the desilting branch pipe extends to the bottom surface of the tunnel, and the inlet and outlet of the tunnel are each provided with a gate; the outlet end of the desilting main pipe is provided with a control valve, and the inlet end is closed, the bottom surface of the tunnel is provided with a filter plate, the filter plate has a plurality of filter holes, the filter plate is arranged at intervals along the length direction of the desilting main pipe, and the filter plate is arranged on one side of the desilting branch pipe close to the outlet of the tunnel.

[0008] By adopting the technical scheme, the filter holes on the filter plates can filter the water flow, so that the silt larger than the filter holes is retained on one side of the filter plates close to the tunnel inlet, i.e., falls on or near the silt discharge branch, so as to increase the retention amount of the silt and improve the silt discharge efficiency. In addition, the filter plates are provided with a plurality of filter holes, which can affect the flow rate of the water flow. Some silt with a diameter smaller than the filter holes can fall under the influence of gravity when the flow rate is reduced, so as to further increase the blocking effect on the silt, and the silt flows into the silt discharge branch and the silt discharge main along the subsequent water flow, i.e., the silt discharge efficiency is further improved.

[0009] Preferably, the diameters of the filter holes on the filter plates gradually decrease towards the direction close to the outlet of the tunnel.

[0010] By adopting the technical scheme, the retention effect on the silt is improved.

[0011] Preferably, the upper end of the filter plate is obliquely arranged towards the direction close to the silt discharge branch.

[0012] By adopting the technical scheme, the upper end of the filter plate is obliquely arranged towards the direction close to the silt discharge branch, i.e., the filter plate is obliquely arranged towards the direction close to the tunnel inlet, so that the silt blocked by the filter plate falls, thereby reducing the possibility of retaining the silt on the filter plate.

[0013] Preferably, a silt guide surface is arranged on the periphery of the tunnel bottom surface at the top of the silt discharge branch, and the silt guide surface is obliquely arranged downwards towards the direction close to the silt discharge branch.

[0014] By adopting the technical scheme, the range of the silt that can be retained is increased, and the silt retained on the tunnel bottom surface is reduced.

[0015] Preferably, a partition plate is arranged between the two adjacent filter plates, the bottom of the partition plate abuts against the tunnel bottom surface, the two ends of the partition plate are slidably connected to the two sides of the tunnel, and the tunnel is provided with a control assembly for controlling the lifting of the partition plate.

[0016] By adopting the technical scheme, when the water amount in the tunnel is small, the silt is accumulated on the tunnel bottom surface and is not easy to flow to the silt discharge branch. In this case, the partition plate arranged between the two adjacent filter plates can form a retention area for retaining water. When the water amount in one area is retained to a certain height, the control assembly is started to open the partition plate, so that the water washes away the silt retained on the tunnel bottom surface between the two filter plates and flows towards the next silt discharge branch and filter plate, thereby further increasing the silt discharge efficiency.

[0017] Preferably, the height of the plurality of partitions gradually decreases towards the outlet of the tunnel.

[0018] By using the above technical scheme, the particle size of the retained sediment is reduced as the flow direction is towards the outlet of the tunnel, and the water flow required for flushing is relatively small.

[0019] Preferably, the control assembly includes a floating plate arranged on the upper end of the partition.

[0020] By using the above technical scheme, when the water is retained to a certain height, the water accumulated to a certain height is flushed to flush the sediment retained on the ground of the tunnel.

[0021] Preferably, the control assembly includes two hanging ropes arranged on the upper surfaces of the partitions at both ends, a rotating wheel for winding the hanging ropes, and a driving member for driving the rotating wheel to rotate.

[0022] By using the above technical scheme, the driving member is started to drive the rotating wheel to rotate, so that the hanging ropes are wound on the rotating wheel to drive the partition to rise, so that the water flow flows to flush the sediment accumulated on the bottom of the tunnel.

[0023] Preferably, the driving member includes a rotating shaft penetrating through the plurality of rotating wheels and a driving motor for driving the rotating shaft to rotate, and the length of the plurality of hanging ropes gradually increases towards the outlet of the tunnel, or the outer diameter of the plurality of rotating wheels gradually decreases towards the outlet of the tunnel.

[0024] By using the above technical scheme, one driving motor can be arranged on each side of the partition to gradually lift the plurality of partitions to gradually flush the sediment, thereby improving the flushing efficiency of the sediment.

[0025] In summary, the utility model has the following advantages:

[0026] By setting several filter plates, due to the filter holes on the filter plates, when the water flow passes through the filter holes, the filter effect is achieved to retain the silt larger than the filter holes on one side of the filter plate close to the tunnel entrance, that is, at or near the silt discharge branch, so as to increase the retention amount of silt, thereby improving the silt discharge efficiency. And the filter plates are provided with several, which will have a certain influence on the flow rate of the water flow, and some silt with a pore size smaller than the filter hole will fall off under the influence of gravity when the flow rate is reduced, thereby further increasing the blocking effect of the silt, and with the subsequent water flow flowing into the silt discharge branch to enter the silt discharge main, that is, further improving the silt discharge efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the embodiment 1 of the present application;

[0028] Figure 2 is a schematic diagram of the structure of the cleaning pool in the embodiment 1 of the present application;

[0029] Figure 3 is a schematic diagram of the structure of the filter plate in the embodiment 1 of the present application;

[0030] Figure 4 is Figure 1 is a partial enlarged schematic diagram of part A in the embodiment 1 of the present application;

[0031] Figure 5 is a schematic diagram of the structure of the embodiment 2 of the present application;

[0032] Figure 6 is Figure 5 is a partial enlarged schematic diagram of part B in the embodiment 2 of the present application.

[0033] BRIEF DESCRIPTION OF DRAWINGS: 1, tunnel; 11, gate; 12, silt guide surface; 2, silt discharge main; 21, cleaning pool; 211, grid; 22, control valve; 3, silt discharge branch; 4, filter plate; 41, plate body; 411, mounting groove; 412, blocking bar; 42, filter screen; 5, partition plate; 6, control assembly; 61, floating plate; 62, lifting rope; 63, rotating wheel; 64, driving member; 641, rotating rod; 642, driving motor; 7, connecting rope. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The present application will be further described in detail.

[0035] The embodiment of the present application discloses a reservoir connecting water conveying tunnel maintenance and silt discharge structure.

[0036] Embodiment 1:

[0037] The reservoir connecting water conveying tunnel maintenance and silt discharge structure, with reference to Figure 1 ,Figure 2 , including the tunnel 1 bottom of the sediment pipe 2 and communicated with the sediment pipe 2 sediment branch pipe 3, wherein the tunnel 1 bottom is inclined to set, the tunnel 1 entrance and the exit are provided with gate 11, the sediment pipe 2 along the flow direction is inclined to set in the tunnel 1 bottom in the middle. In which, the outlet end of the sediment pipe 2 is close to the outlet of the tunnel 1 is set, the outlet end of the sediment pipe 2 extends to the tunnel 1 export, and is communicated with the cleaning pool 21, the cleaning pool 21 is provided with different aperture grid 211, to collect the silt for cleaning, the outlet section of the sediment pipe 2 is provided with control valve 22, the inlet end is closed, when the sediment pipe 2 in the amount of accumulated silt to a certain amount, open control valve 22 to flush under the water pressure of the flow from the sediment pipe 2.

[0038] In this embodiment, the top of the sediment branch pipe 3 extends to the ground of the tunnel 1, and the sediment branch pipe 3 is spaced apart along the length direction of the sediment pipe 2. At this time, the bottom surface of the tunnel 1 is provided with a sand guide surface 12 on the side near the top of the sediment branch pipe 3, and the sand guide surface 12 is inclined downward towards the sediment branch pipe 3.

[0039] Referring to Figure 1 , Figure 3 , further, to improve the sediment discharge efficiency, the bottom surface of the tunnel 1 is provided with a filter plate 4 in the embodiment, the filter plate 4 is arranged on one side of the sediment branch pipe 3 close to the outlet of the tunnel 1, and a plurality of filter plates 4 are spaced apart along the length direction of the sediment pipe 2. The upper end of the filter plate 4 is inclined towards the sediment branch pipe 3, and the filter plate 4 has a plurality of filter holes. The diameters of the filter holes of the plurality of filter plates 4 gradually decrease towards the outlet of the tunnel 1. The filter plate 4 can specifically include a plate body 41 and a filter screen 42 arranged on the plate body 41. The plate body 41 is provided with a plurality of installation grooves 411 for installing the filter screen 42, and the installation grooves 411 are spaced apart along the height direction of the plate body 41. The plate body 41 is provided with a blocking strip 412 protruding above the installation grooves 411 to block.

[0040] Referring to Figure 1 , Figure 4 , in the embodiment, a partition plate 5 is arranged between the adjacent two filter plates 4, the heights of the plurality of partition plates 5 gradually decrease towards the outlet of the tunnel 1, the bottom of the partition plate 5 abuts against the bottom surface of the tunnel 1, and the two ends of the partition plate 5 are slidably connected to the two sides of the tunnel 1. The tunnel 1 is provided with a control assembly 6 for controlling the lifting of the partition plate 5. In the embodiment, the control assembly 6 is a floating plate 61 fixedly connected to the upper end of the partition plate 5 and affected by the buoyancy of water. A connecting rope 7 is fixedly connected between the floating plate 61 and the partition plate 5, and the connecting rope 7 has elasticity to reduce the possibility of the floating plate 61 flowing away with the water flow after being separated from the partition plate 5 after long-term use.

[0041] The implementation principle of the reservoir connecting water conveying tunnel 1 maintenance and desilting structure in the embodiment of the application is that: a plurality of filter plates 4 are arranged, and due to the filter holes on the filter plates 4, when water flows through the filter holes, a filtering effect is achieved, so that the silt larger than the filter holes is retained on one side of the filter plate 4 close to the inlet of the tunnel 1, that is, falls in or near the desilting branch pipe 3, so as to increase the retention amount of silt, thereby improving the desilting efficiency of silt. The filter plates 4 are arranged in plurality, which has a certain influence on the flow rate of water flow, and some silt with a hole diameter smaller than the filter holes will fall off under the influence of gravity when the flow rate is reduced, thereby further increasing the blocking effect of silt, and with the subsequent water flow flowing into the desilting branch pipe 3 at the inlet to enter the desilting main pipe 2, that is, further improving the desilting efficiency of silt.

[0042] When the water flow is small, the silt will accumulate on the bottom surface of the tunnel 1 and is not easy to flow to the desilting branch pipe 3. In this regard, a retention area for water retention is formed between adjacent baffles 5, and when the retention height reaches a certain height, the water accumulated to a certain height will be washed away with the buoyancy of the floating plate 61, thereby washing away the silt accumulated on the ground of the tunnel 1.

[0043] Embodiment 2:

[0044] With reference to Figure 5 , Figure 6 The difference between the embodiment 1 and the embodiment 2 is that the control assembly 6 includes two hanging ropes 62 arranged on the upper surfaces of the baffles 5 at both ends, a rotating wheel 63 around which the hanging ropes 62 are arranged, and a driving member 64 for driving the rotating wheel 63 to rotate. The hanging ropes 62 are wound on the rotating wheel 63, and the rotating wheel 63 is rotationally connected to the tunnel 1. The driving member 64 includes a rotating rod 641 penetrating through a plurality of rotating wheels 63 and a driving motor 642 for driving the rotating rod 641 to rotate. It should be noted that the driving motor 642 is a waterproof driving motor.

[0045] In the embodiment, the lengths of the plurality of hanging ropes 62 gradually increase towards the outlet of the tunnel 1, or the outer diameters of the plurality of rotating wheels 63 gradually decrease towards the outlet of the tunnel 1, which are specifically arranged according to requirements, so that the baffles 5 can be gradually lifted. In the embodiment, the rotating wheels 63 with different outer diameters are specifically shown. It should be noted that the lifting time of the baffles 5 can be initially set as the rotation time of the driving motor 642 itself, or a water level sensor can be arranged on the baffles 5 to collect data of the retained water level, which is transmitted to a central control platform for processing, and the corresponding instructions are transmitted to the controller to control the driving of the driving motor 642 after data processing.

[0046] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made on the basis of the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A reservoir connecting water conveyance tunnel inspection desilting structure, characterized in that: The utility model relates to a tunnel sand discharge device, including the sand discharge main pipe (2) of setting in the bottom of tunnel (1) and the sand discharge branch pipe (3) of intercommunication at sand discharge main pipe (2), the sand discharge branch pipe (3) is spaced and is provided with a plurality of along the length direction of sand discharge main pipe (2), the top of sand discharge branch pipe (3) extends to the bottom surface of tunnel (1), the import and export of tunnel (1) are equipped with gate (11), the outlet end of sand discharge main pipe (2) is equipped with control valve (22), the inlet end is closed, the bottom surface of tunnel (1) is equipped with filter plate (4), a plurality of filter holes have on filter plate (4), a plurality of filter plates (4) are spaced and are provided along the length direction of sand discharge main pipe (2), and filter plate (4) is set up in the side of sand discharge branch pipe (3) near the export of tunnel (1).

2. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 1, characterized in that: The aperture of a plurality of filter holes on the filter plate (4) gradually decreases towards the direction of the export of the tunnel (1).

3. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 1, characterized in that: The upper end of the filter plate (4) is obliquely arranged towards the direction of the sand discharge branch pipe (3).

4. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 1, characterized in that: The bottom surface of the tunnel (1) is provided with a sand guide surface (12) on the side of the top of the sand discharge branch pipe (3), and the sand guide surface (12) is obliquely arranged downwards towards the direction of the sand discharge branch pipe (3).

5. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 1, characterized in that: A partition plate (5) is arranged between two adjacent filter plates (4), the bottom of the partition plate (5) abuts against the bottom surface of the tunnel (1), and the two ends of the partition plate (5) are slidingly connected to the two sides of the tunnel (1).

6. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 5, characterized in that: The height of a plurality of partition plates (5) gradually decreases towards the export of the tunnel (1).

7. The water reservoir connecting water delivery tunnel inspection desilting structure according to claim 5, characterized in that: The control assembly (6) comprises a floating plate (61) arranged on the upper end of the partition plate (5).

8. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 5, characterized in that: The control assembly (6) comprises two lifting ropes (62) arranged on the upper surfaces of the two ends of the partition plate (5), a rotating wheel (63) around which the lifting ropes (62) are arranged, and a driving member (64) for driving the rotating wheel (63) to rotate, the lifting ropes (62) are wound around the rotating wheel (63), and the rotating wheel (63) is rotationally connected to the tunnel (1).

9. The reservoir connecting water delivery tunnel inspection desilting structure according to claim 8, characterized in that: The driving member (64) comprises a rotating shaft (641) penetrating a plurality of rotating wheels (63) and a driving motor (642) for driving the rotating shaft (641) to rotate, the lengths of a plurality of lifting ropes (62) gradually increase towards the export of the tunnel (1), or the outer diameters of a plurality of rotating wheels (63) gradually decrease towards the export of the tunnel (1).

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