A dredging device for a water collection well of a hydropower station

Abstract

The utility model relates to the technical field of water collection well desilting equipment, specifically a water collection well desilting device for a hydropower station, including a water collection well and an equipment room, a limit sleeve is movably provided at the right part of the top of the water collection well, a flushing pipe is movably provided inside the limit sleeve, two stirring paddles are provided on the bottom surface of the water collection well, a mud discharge valve is fixedly installed at the center of the top surface inside the equipment room, a motor is fixedly installed at the left end of the bottom surface inside the equipment room, and a mud discharge pipe is connected to the right end of the mud discharge valve. This water collection well desilting device for a hydropower station is added with a retractable and movable flushing pipe, and the flushing pipe is equipped with a high-pressure water nozzle, which can flush and clean the silt at most positions at the bottom of the water collection well. When in use, it can be extended into the well near the position where the silt accumulates, and can also be drawn out of the water collection well when idle. The bottom surface of the water collection well is equipped with stirring paddles and mud discharge valve pipelines, which further accelerate the dissolution process of the silt, improve the efficiency of silt cleaning and mud water discharge, and is quick and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of water collection well desilting equipment, in particular to a water collection well desilting device for a hydropower station. Background Art

[0002] A hydropower station is an important hydroelectric power generation facility in modern power engineering. It usually relies on the potential energy generated by the flow of water to generate electricity. In the hydraulic system of a hydropower station, the water collection well is an important hub structure. Its main function is to collect water from various water source areas and guide and control the flow of water through pipelines to ensure the normal operation of hydropower generation. It is a very important component of the hydropower station's power generation system.

[0003] Since hydropower stations basically rely on natural waters for power generation, this means that the water flow system is often accompanied by a large amount of silt in the riverbed. After the system has been running for a long time, a lot of silt will often accumulate at the bottom of the collection well. If it is not cleaned in time, it will occupy the collection well space, affect the water flow, and thus reduce the power generation efficiency. Therefore, silt removal of the collection well is a key daily maintenance task for hydropower stations. However, it is currently basically done manually using tools for regular cleaning, which poses a high safety hazard, has low efficiency, and is difficult to clean.

[0004] In order to solve the above problems, we have made improvements and proposed a dredging device for a water collection well of a hydropower station. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a silt clearing device for a water collection well in a hydropower station, comprising a water collection well and an equipment room, wherein the bottom surface outside the water collection well is fixedly connected to the equipment room, a limiting sleeve is movably arranged on the right part of the top end inside the water collection well, a flushing pipe is movably arranged inside the limiting sleeve, a high-pressure water flow pipe is fixedly connected and arranged on the right side of the top end of the flushing pipe, two stirring paddles are arranged on the bottom surface inside the water collection well, a mud discharge valve is fixedly installed at the center of the top surface inside the equipment room, a motor is fixedly installed at the left end of the bottom surface inside the equipment room, and the right end of the mud discharge valve is connected to a mud discharge pipeline.

[0007] As a preferred technical solution of the utility model, an angle seat is fixedly installed on the ground at the right end of the outside of the water collection well by bolts, a bearing is fixedly provided on the left side of the angle seat, and a hinge seat is fixedly installed on the left side of the bearing.

[0008] As a preferred technical solution of the utility model, the middle part of the limiting sleeve is hinged to the bearing through a hinge seat, the top and bottom surfaces of the limiting sleeve are fixedly provided with annular rubber pads, the top and bottom ends of the flushing pipe are fixedly welded with limiting ring plates, and the outer diameter of the limiting ring plate is equal to the outer diameter of the limiting sleeve.

[0009] As a preferred technical solution of the utility model, a handle is fixedly provided on the top of the flushing pipe, and a high-pressure water gun nozzle is connected to the bottom thereof. Four guide grooves are evenly spaced around the outer wall surface of the flushing pipe, and four rows of rollers are fixedly provided at equal intervals around the inner wall of the limiting sleeve. The four rows of rollers are respectively connected to the four guide grooves, and the flushing pipe is slidably connected to the limiting sleeve through the rollers and the guide grooves.

[0010] As a preferred technical solution of the utility model, a silt discharge port is opened at the center of the bottom surface of the inner wall of the water collection well, the top of the mud discharge valve is fixedly connected to the silt discharge port, and the rotating shaft on the top surface of the motor is coaxially fixedly connected to the driving wheel.

[0011] As a preferred technical solution of the utility model, a driven wheel is rotatably arranged at the right end of the outer bottom surface of the water collection well, a transmission belt is sleeved between the driven wheel and the driving wheel, and the driving wheel and the driven wheel are connected through the transmission belt.

[0012] As a preferred technical solution of the utility model, the bottom of the central axis of the two stirring paddles passes through the bottom surface of the water collection well and is coaxially fixedly connected with the driving wheel and the driven wheel.

[0013] The beneficial effects of the utility model are as follows: the silt clearing device for the water collection well of the hydropower station is equipped with a retractable and movable flushing pipe, which is equipped with a high-pressure water nozzle. With the cooperation of components such as a hinge seat and a bearing, the flushing pipe can flush and clean the silt at most positions on the bottom of the water collection well. When in use, it can be extended into the well near the position where the silt accumulates, and can be drawn out of the water collection well when idle without hindering its normal water collection. The bottom surface of the water collection well is equipped with a stirring paddle and a mud discharge valve pipeline, which further accelerates the dissolution process of the silt, improves the efficiency of silt cleaning and mud water discharge, and is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of a silt removal device for a water collection well in a hydropower station according to the utility model;

[0016] Figure 2 This is a schematic diagram of the flushing pipe structure of a water collection well desilting device for a hydropower station according to the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of a limiting sleeve of a water collecting well desilting device for a hydropower station according to the utility model;

[0018] Figure 4This is a schematic diagram of the structure of the equipment room of a water collection well desilting device for a hydropower station according to the utility model;

[0019] In the figure: 1. water collection well; 2. equipment room; 3. angle seat; 4. bearing; 5. hinge seat; 6. limit sleeve; 7. flushing pipe; 8. high-pressure water flow pipe; 9. limit ring plate; 10. guide rail groove; 11. roller; 12. silt discharge port; 13. mud discharge valve; 14. motor; 15. driving wheel; 16. driven wheel; 17. transmission belt; 18. stirring paddle. DETAILED DESCRIPTION

[0020] 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.

[0021] Example: Figure 1-3 As shown, a silt clearing device for a water collection well of a hydropower station comprises a water collection well 1 and an equipment room 2, wherein the outer bottom surface of the water collection well 1 is fixedly connected to the equipment room 2, a limiting sleeve 6 is movably provided on the right part of the top end inside the water collection well 1, a flushing pipe 7 is movably provided inside the limiting sleeve 6, a high-pressure water flow pipe 8 is fixedly connected to the right side of the top end of the flushing pipe 7, two stirring paddles 18 are provided on the bottom surface inside the water collection well 1, a mud discharge valve 13 is fixedly installed at the center of the top surface inside the equipment room 2, a motor 14 is fixedly installed at the left end of the bottom surface inside the equipment room 2, and the right end of the mud discharge valve 13 is connected to a mud discharge pipeline.

[0022] An angle seat 3 is fixedly installed on the ground at the right end of the outside of the water collection well 1 by bolts, a bearing 4 is fixedly arranged on the left side of the angle seat 3, a hinge seat 5 is fixedly installed on the left side of the bearing 4, the middle part of the limiting sleeve 6 is hinged to the bearing 4 through the hinge seat 5, and the limiting sleeve 6 can obtain a larger rotation range under the action of the hinge seat 5 and the bearing 4. The top and bottom surfaces of the limiting sleeve 6 are fixedly provided with annular rubber pads, a handle is fixedly provided on the top of the flushing pipe 7, and a high-pressure water gun nozzle is connected to the bottom thereof. A limiting ring plate 9 is fixedly welded on the top and bottom ends of the flushing pipe 7, and the outer diameter of the limiting ring plate 9 is equal to the outer diameter of the limiting sleeve 6. Four guide grooves 10 are evenly spaced around the outer wall surface of the flushing pipe 7, and the inner wall of the limiting sleeve 6 Four rows of rollers 11 are arranged in a fixed circle at equal intervals. The number of rollers 11 in each row is the same, and the spacing between the rollers 11 in each row is equal. The four rows of rollers 11 are respectively connected to the four guide grooves 10. The flushing pipe 7 is slidably connected to the limiting sleeve 6 through the rollers 11 and the guide grooves 10. After opening the manhole cover and starting the dredging work, the flushing pipe 7 can be pushed by the handle while rotating it toward the depth of the water collection well 1 until the limiting ring plate 9 on the top of the flushing pipe 7 presses against the rubber ring pad on the top surface of the limiting sleeve 6. Then the high-pressure water supply equipment is started, and the water is transported to the flushing pipe 7 through the high-pressure water flow pipe 8 and sprayed out through the nozzle. The movement of the flushing pipe 7 is controlled by the handle to flush the silt at most positions on the bottom of the water collection well 1.

[0023] A sludge discharge port 12 is provided at the center of the bottom surface of the inner wall of the water collection well 1. The top of the mud discharge valve 13 is fixedly connected to the sludge discharge port 12. The rotating shaft of the top surface of the motor 14 is coaxially fixedly connected to the driving wheel 15. A driven wheel 16 is rotatably provided at the right end of the outer bottom surface of the water collection well 1. A transmission belt 17 is sleeved between the driven wheel 16 and the driving wheel 15. The driving wheel 15 and the driven wheel 16 are connected through the transmission belt 17. The bottom of the central axis of the two stirring paddles 18 passes through the bottom surface of the water collection well 1 and the driving wheel 1 5 and the driven wheel 16 are coaxially fixedly connected. During the flushing process, when the sludge gradually falls off and dissolves in the flushing water, the motor 14 can be started to drive the driving wheel 15 to rotate, and then the driven wheel 16 is driven to rotate through the transmission belt 17. The driving wheel 15 and the driven wheel 16 then drive the stirring paddle 18 to rotate, and the sludge water inside the water collection well 1 is continuously stirred to further promote the dissolution of the sludge, so that the sludge is fully dissolved in the flushing water, and finally the mud discharge valve 13 is opened to discharge the muddy water to complete the cleaning.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above 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 utility model shall be included in the protection scope of the utility model.

Claims

1. A silt removal device for a water collection well of a hydropower station, comprising a water collection well (1) and an equipment room (2), characterized in that: The bottom surface of the water collection well (1) is fixedly connected to the equipment room (2); a limit sleeve (6) is movably provided at the right part of the top of the water collection well (1); a flushing pipe (7) is movably provided inside the limit sleeve (6); a high-pressure water flow pipe (8) is fixedly connected to the right side of the top of the flushing pipe (7); two stirring paddles (18) are provided on the bottom surface of the water collection well (1); a mud discharge valve (13) is fixedly installed at the center of the top surface of the equipment room (2); a motor (14) is fixedly installed at the left end of the bottom surface of the equipment room (2); and the right end of the mud discharge valve (13) is connected to a silt discharge pipeline.

2. A silt removal device for a water collection well of a hydropower station according to claim 1, characterized in that: An angle seat (3) is fixedly installed on the ground at the right end of the outside of the water collection well (1) by means of bolts, a bearing (4) is fixedly arranged on the left side of the angle seat (3), and a hinge seat (5) is fixedly installed on the left side of the bearing (4).

3. A silt removal device for a water collection well of a hydropower station according to claim 2, characterized in that: The middle part of the limiting sleeve (6) is hinged to the bearing (4) via a hinge seat (5), and an annular rubber pad is fixedly provided on the top and bottom surfaces of the limiting sleeve (6). A limiting ring plate (9) is fixedly welded on the top and bottom ends of the flushing pipe (7), and the outer diameter of the limiting ring plate (9) is equal to the outer diameter of the limiting sleeve (6).

4. A silt removal device for a water collection well of a hydropower station according to claim 1, characterized in that: A handle is fixedly provided on the top of the flushing pipe (7), and a high-pressure water gun nozzle is connected to the bottom thereof. Four guide grooves (10) are arranged around the outer wall surface of the flushing pipe (7) at equal intervals. Four rows of rollers (11) are fixedly arranged around the inner wall of the limiting sleeve (6) at equal intervals. The four rows of rollers (11) are respectively connected to the four guide grooves (10). The flushing pipe (7) is slidably connected to the limiting sleeve (6) via the rollers (11) and the guide grooves (10).

5. A silt removal device for a water collection well of a hydropower station according to claim 1, characterized in that: A silt discharge port (12) is provided at the center of the bottom surface of the inner wall of the water collection well (1), the top of the sludge discharge valve (13) is fixedly connected to the silt discharge port (12), and the rotating shaft on the top surface of the motor (14) is coaxially fixedly connected to a driving wheel (15).

6. A silt removal device for a water collection well of a hydropower station according to claim 5, characterized in that: A driven wheel (16) is rotatably arranged at the right end of the outer bottom surface of the water collecting well (1), a transmission belt (17) is sleeved between the driven wheel (16) and the driving wheel (15), and the driving wheel (15) and the driven wheel (16) are connected by the transmission belt (17).

7. A silt removal device for a water collection well of a hydropower station according to claim 6, characterized in that: The bottoms of the central axes of the two stirring paddles (18) respectively pass through the bottom surface of the water collection well (1) and are coaxially fixedly connected to the driving wheel (15) and the driven wheel (16).

Images