A leakage water collecting device suitable for underground powerhouse of pumped storage power station

Abstract

The utility model discloses a kind of leakage water collection devices suitable for pumped storage power station underground powerhouse, belong to pumped storage power station technical field;Including the drainage ditch of confluence, the upper portion of confluence drainage ditch is equipped with support frame, two connecting plates are installed in the inside of confluence drainage ditch, filter screen plate is commonly provided between two connecting plates, two mounting blocks are set in the outside of support frame, scraper is commonly installed between two mounting blocks, collecting box is installed in the outside of filter screen plate, two guide plates are installed in the inside of collecting box, through the efficient interception of filter screen plate to impurities in confluence drainage ditch, cooperate scraper on support frame, filter screen plate is driven to lift under the drive of second cylinder, in the process of lifting, scraper is contacted with filter screen plate, so that impurities fall in collecting box, the cooperation of filtering and automatic maintenance is realized;Filter screen plate outside collecting box and inside guide plate can accurately undertake and guide impurities centralized processing, avoid secondary pollution and reduce additional workload.

Description

Technical Field

[0001] This utility model relates to the field of pumped storage power station technology, specifically a leakage water collection device suitable for underground powerhouses of pumped storage power stations. Background Technology

[0002] Pumped storage power stations are energy storage hydroelectric power stations that use electricity generated during periods of low electricity load to pump water to an upper reservoir and release water to a lower reservoir to generate electricity during periods of high electricity load. They are known as "regulators" and "emergency power sources" for the power system and play a key role in the global energy transition.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN210315444U) discloses a seepage collection well suitable for underground powerhouses of pumped storage power stations. The collection well includes a main body, a drainage corridor, and a main drainage pipe. The main body is divided into two chambers (left and right) by a central isolation wall. The isolation wall has two overflow holes, each equipped with an explosion-proof device. The main drainage pipe branches into two branch pipes, each connected to one of the two chambers of the main body, and each branch pipe is equipped with a gate valve. The drainage corridor connects to the main body and is located on the side wall opposite the main drainage pipe. It includes a confluence drainage ditch, a sedimentation tank, and an outflow drainage ditch. This seepage collection well can achieve complete dredging and eliminate safety hazards caused by short-term, high-flow-rate seepage during dredging.

[0004] While the aforementioned patents can achieve complete dredging by setting up the seepage collection well body, drainage corridor, and drainage main, and can eliminate the safety hazards caused by short-term high-flow seepage during dredging, the drainage ditches mostly rely on fixed filter screens for preliminary filtration. Impurities accumulate on the filter screen surface quickly, requiring frequent manual cleaning. This not only increases the labor intensity of maintenance personnel, but also requires interrupting the flow collection operation during cleaning, affecting the efficiency of seepage water collection. At the same time, manual cleaning is prone to incomplete cleaning, and the long-term accumulation of residual impurities will breed bacteria, accelerate filter screen aging, and reduce the stability of filtration effect.

[0005] Therefore, this utility model provides a leakage water collection device suitable for underground powerhouses of pumped storage power stations to solve the above-mentioned problems. Utility Model Content

[0006] (a) Technical problems to be solved This invention provides a leakage water collection device suitable for underground powerhouses of pumped storage power stations, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a leakage water collection device suitable for underground powerhouses of pumped storage power stations, comprising a drainage ditch, a support frame installed above the drainage ditch, two connecting plates installed inside the drainage ditch, a filter screen plate arranged between the two connecting plates, two mounting blocks arranged outside the support frame, a scraper installed between the two mounting blocks, the scraper being located above and in contact with the filter screen plate, a collection box installed outside the filter screen plate, the surface of the collection box contacting the two connecting plates, and two guide plates installed inside the collection box. As a preferred technical solution of this application, the support frame has two slides on its outside, one of which has a first screw installed inside, and a first motor is installed on the top of the support frame. The output end of the first motor is connected to the first screw, and the first screw is threadedly connected to one of the mounting blocks through a threaded block.

[0008] As a preferred technical solution of this application, a slide rod is installed inside another slide rail, and the slide rod is slidably connected to another mounting block through a slider.

[0009] As a preferred technical solution of this application, each of the connecting plates has a groove on one side that is close to each other, and the two grooves are slidably connected to the filter plate. A sealing strip is installed inside each groove.

[0010] As a preferred technical solution of this application, a sedimentation tank is connected to the right side of the drainage ditch. Two through slots are opened above the sedimentation tank. A guide rod is installed inside one of the through slots, and a second motor and a second screw are installed inside the other through slot. The output end of the second motor is connected to the second screw.

[0011] As a preferred technical solution of this application, a movable plate is provided above the sedimentation tank, the guide rod is slidably connected to the movable plate through a slider, and the second screw is threadedly connected to the movable plate through a slider.

[0012] As a preferred technical solution of this application, a first cylinder is installed above the movable plate, and a sand suction pump is provided below the movable plate, with the output end of the first cylinder connected to the sand suction pump.

[0013] As a preferred technical solution of this application, a second cylinder is installed above the support frame, and the output end of the second cylinder is connected to the filter plate.

[0014] As a preferred technical solution of this application, the sedimentation tank is equipped with two inclined plates, which are arranged opposite to each other.

[0015] (III) Beneficial Effects The filter screen in the drainage ditch effectively intercepts impurities, and in conjunction with the scraper on the support frame, the filter screen is raised and lowered by the second cylinder. During the raising and lowering process, the scraper contacts the filter screen, causing impurities to fall into the collection box, thus achieving synergy between filtration and automatic maintenance. The external collection box and internal guide plate of the filter screen can accurately receive and guide impurities for centralized treatment, avoiding secondary pollution and reducing extra workload. The whole system realizes integrated operation of leakage water collection, filtration, and impurity cleaning without interrupting operations, effectively avoiding safety hazards caused by untimely treatment. Attached Figure Description

[0016] Figure 1 A perspective view of a leakage water collection device suitable for underground powerhouses of pumped storage power stations; Figure 2 A perspective view of a filter screen plate for a leakage water collection device suitable for underground powerhouses of pumped storage power stations; Figure 3 A perspective view of a connecting plate for a leakage water collection device suitable for underground powerhouses of pumped storage power stations; Figure 4 A top view of a leakage water collection device suitable for underground powerhouses of pumped storage power stations; Figure 5 This is a side view of a leakage water collection device suitable for underground powerhouses of pumped storage power stations.

[0017] In the picture: 1. Drainage ditch; 2. Sedimentation tank; 3. Support frame; 4. First motor; 5. Second cylinder; 6. Moving plate; 7. First cylinder; 8. Slide rail; 9. First screw; 10. Slide rod; 11. Mounting block; 12. Scraper; 13. Connecting plate; 14. Filter screen; 15. Collection box; 16. Guide plate; 17. Slide groove; 18. Threaded block; 19. Through groove; 20. Guide rod; 21. Sand suction pump; 22. Second motor; 23. Second screw; 24. Inclined plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides a leakage water collection device suitable for underground powerhouses of pumped storage power stations, such as... Figures 1 to 5As shown, the system includes a drainage ditch 1, a support frame 3 mounted above the drainage ditch 1, two connecting plates 13 installed inside the drainage ditch 1, and a filter plate 14 disposed between the two connecting plates 13. Two mounting blocks 11 are mounted outside the support frame 3, and a scraper 12 is mounted between the two mounting blocks 11. The scraper 12 is located above and in contact with the filter plate 14. A collection box 15 is mounted outside the filter plate 14, and the surface of the collection box 15 contacts the two connecting plates 13. Two guide plates 16 are installed inside the collection box 15. A second cylinder 5 is mounted above the support frame 3, and the output end of the second cylinder 5 is connected to the filter plate 14. The filter screen 14 is connected to the drainage ditch 1 and can efficiently intercept impurities in the seepage water, preventing impurities from entering the subsequent system and causing blockages. The scraper 12 on the support frame 3 contacts the filter screen 14 and can clean the impurities accumulated on the surface of the filter screen 14 in time, ensuring filtration efficiency. The collection box 15 can collect the cleaned impurities and guide them smoothly into the drainage ditch with the internal guide plate 16, preventing impurities from falling back into the drainage ditch and reducing secondary cleaning work. The second cylinder 5 is connected to the filter screen 14 and can drive the filter screen 14 to move, which facilitates the disassembly, replacement and maintenance of the filter screen 14, improves the convenience of equipment maintenance and ensures the continuous and stable operation of the filtration system.

[0020] The support frame 3 has two slide rails 8 on its exterior. A first screw 9 is installed inside one slide rail 8. A first motor 4 is mounted above the support frame 3, and the output end of the first motor 4 is connected to the first screw 9. The first screw 9 is threadedly connected to one of the mounting blocks 11 via a threaded block 18. A slide rod 10 is installed inside the other slide rail 8, and the slide rod 10 is slidably connected to another mounting block 11 via a slider. Each connecting plate 13 has a groove 17 on one of its adjacent sides. Both grooves 17 are slidably connected to the filter plate 14. A sealing strip is installed inside each groove 17. The first screw 9 and slide bar 10 in the two slide rails 8 cooperate with each other. Driven by the first motor 4, they drive the mounting block 11 and scraper 12 to move stably through the threaded block 18 and the slider, ensuring that the scraper 12 cleans the filter screen plate 14 evenly and thoroughly, avoiding the limitations of manual cleaning. The filter screen plate 14 and the connecting plate 13 are slidably connected through the slide groove 17. Combined with the sealing strip in the slide groove 17, the filter screen plate 14 can be flexibly disassembled and assembled, and the sealing of the connection part is enhanced to prevent unfiltered water leakage, ensure the reliability of the filtration effect, and reduce the risk of equipment corrosion caused by sealing problems.

[0021] A sedimentation tank 2 is connected to the right side of the drainage ditch 1. Two through-slots 19 are opened above the sedimentation tank 2. A guide rod 20 is installed inside one through-slot 19, and a second motor 22 and a second screw 23 are installed inside the other through-slot 19. The output end of the second motor 22 is connected to the second screw 23. A movable plate 6 is installed above the sedimentation tank 2. The guide rod 20 is slidably connected to the movable plate 6 via a slider, and the second screw 23 is threadedly connected to the movable plate 6 via a slider. A first cylinder 7 is installed above the movable plate 6, and a suction device is installed below the movable plate 6. The sand pump 21 is connected to the output end of the first cylinder 7. The sedimentation tank 2 has two inclined plates 24 installed inside, which are arranged opposite each other. The sedimentation tank 2 connected to the drainage ditch 1 can further settle the silt in the water. The guide rod 20 and the second screw 23 above the sedimentation tank 2 drive the moving plate 6 to move under the drive of the second motor 22. This, together with the first cylinder 7, drives the sand pump 21 to move up and down, so that the sand pump 21 can accurately suck and clean the sediment at different positions in the sedimentation tank 2 without stopping the machine for manual dredging, which greatly improves the dredging efficiency and flexibility.

[0022] Working principle: Leaking water from the underground plant first collects in the drainage ditch 1, and is filtered by the filter screen 14 on the internal connecting plate 13, effectively intercepting impurities in the water; as impurities accumulate on the surface of the filter screen 14, the second cylinder 5 on the support frame 3 drives the filter screen 14 to rise and fall. During the rise of the filter screen 14, the scraper 12 performs preliminary cleaning of the surface impurities, causing the impurities to fall naturally into the collection box 15 below; when the filter screen 14 rises to the set height, the first motor 4 drives the scraper 12 to rise and fall further through the mounting block 11, performing a secondary fine cleaning of the filter screen 14 to ensure thorough removal of impurities; when the filter screen 14 needs maintenance, the second cylinder 5 on the support frame 3 can drive it to completely detach from the connecting plate 13, achieving flexible disassembly and assembly.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leakage water collection device suitable for underground powerhouses of pumped storage power stations, comprising a drainage ditch (1), characterized in that: A support frame (3) is installed above the drainage ditch (1). Two connecting plates (13) are installed inside the drainage ditch (1). A filter plate (14) is provided between the two connecting plates (13). Two mounting blocks (11) are provided outside the support frame (3). A scraper (12) is provided between the two mounting blocks (11). The scraper (12) is located above the filter plate (14) and is in contact with the filter plate (14). A collection box (15) is installed outside the filter plate (14). The surface of the collection box (15) is in contact with the two connecting plates (13). Two guide plates (16) are installed inside the collection box (15).

2. The seepage collection device for underground powerhouses of pumped storage power stations according to claim 1, characterized in that: The support frame (3) has two slides (8) on its outside. A first screw (9) is installed inside one of the slides (8). A first motor (4) is installed on the top of the support frame (3). The output end of the first motor (4) is connected to the first screw (9). The first screw (9) is threadedly connected to one of the mounting blocks (11) through a threaded block (18).

3. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 2, characterized in that: Another slide (8) has a slide rod (10) installed inside it, and the slide rod (10) is slidably connected to another mounting block (11) by a slider.

4. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 1, characterized in that: Each of the connecting plates (13) has a groove (17) on one side that is close to each other. The two grooves (17) are slidably connected to the filter plate (14). Each groove (17) has a sealing strip installed inside.

5. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 1, characterized in that: The right side of the drainage ditch (1) is connected to a sedimentation tank (2). Two through slots (19) are opened above the sedimentation tank (2). A guide rod (20) is installed inside one of the through slots (19), and a second motor (22) and a second screw (23) are installed inside the other through slot (19). The output end of the second motor (22) is connected to the second screw (23).

6. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 5, characterized in that: A movable plate (6) is provided above the sedimentation tank (2). The guide rod (20) is slidably connected to the movable plate (6) through a slider. The second screw (23) is threadedly connected to the movable plate (6) through a slider.

7. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 6, characterized in that: A first cylinder (7) is installed above the movable plate (6), and a sand suction pump (21) is provided below the movable plate (6). The output end of the first cylinder (7) is connected to the sand suction pump (21).

8. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 1, characterized in that: A second cylinder (5) is installed above the support frame (3), and the output end of the second cylinder (5) is connected to the filter plate (14).

9. A leakage water collection device suitable for underground powerhouses of pumped storage power stations according to claim 5, characterized in that: The sedimentation tank (2) is equipped with two inclined plates (24) arranged opposite to each other.

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