Diversion tunnel trash holding mechanism

By installing a treatment tank and a mobile suction mechanism in the water diversion tunnel, the problem of floating debris blockage is solved through automated cleaning, achieving efficient interception and treatment, and ensuring power generation efficiency and equipment safety.

CN224016267UActive Publication Date: 2026-03-20QINGHAI HUANGHE HYDROPOWER DEVELOPMENT CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing technologies, floating debris in water diversion tunnels is difficult to intercept and handle efficiently, leading to siltation problems that affect power generation efficiency and equipment safety.

Method used

Design a debris-blocking mechanism that includes a treatment tank, a net, a mobile suction mechanism, and a water pump. The mobile suction mechanism sucks floating debris into the treatment tank, and the water pump and filter components enable automated cleaning. A telescopic cylinder is used to compress the floating debris, and a sealed motor facilitates cleaning.

Benefits of technology

It improves the efficiency of floating debris collection, avoids siltation problems, ensures smooth water flow, reduces the need for manual operation, protects the safety of power generation equipment, and improves power generation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pumped storage power generation, and particularly relates to a drain grating mechanism for a diversion tunnel. Comprising a treatment box and a floating part, an intercepting net is mounted on the treatment box, and a guide rail is mounted on the intercepting net; a movable suction mechanism is mounted on the guide rail; the movable suction mechanism is connected with the floating piece, and the movable suction mechanism is communicated with the interior of the treatment box; a water pump is communicated with the interior of the treatment box; a filtering assembly is mounted at the inlet end of the water pump; a water outlet pipe is mounted at the outlet end of the water pump; the floating objects are collected and removed in time, so that the problems of floating object accumulation and clogging at the intercepting net are avoided, the smoothness of water flow in the diversion tunnel is ensured, and the normal power generation efficiency of the pumped storage power station is favorably maintained.
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Description

Technical Field

[0001] This utility model belongs to the field of pumped storage power generation technology, and specifically relates to a pollution interception mechanism for a water diversion tunnel. Background Technology

[0002] Pumped-storage power stations primarily generate electricity by using the flow of water to drive generators. Water is drawn from river sections with steep gradients and significant drops, as well as river bends or areas with large differences in elevation between adjacent riverbeds, using gently sloping diversion tunnels to create a suitable drop with the natural water surface. In the construction of pumped-storage power stations, the diversion tunnel is a type of underground engineering project. However, a significant amount of floating debris travels from upstream to downstream through the diversion tunnel, causing pollution downstream and potentially entering and damaging the generator units. Therefore, effective debris containment within the diversion tunnel is necessary.

[0003] Typically, trash racks are installed in water diversion tunnels and at the upstream inlet of hydroelectric power stations to intercept floating debris. However, the debris intercepted by these racks accumulates, causing blockages that can lead to insufficient water intake to the power station, thus affecting power generation efficiency. Therefore, finding a trash rack that efficiently collects floating debris and prevents blockages is a current research focus. Existing technologies can effectively clean up floating debris using floating containers and interception nets, but these technologies lack effective design for handling floating debris and preventing blockages.

[0004] Therefore, a pollution interception mechanism for the water diversion tunnel of pumped storage power stations is needed to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a pollution interception mechanism for a water diversion tunnel, comprising a treatment tank and a floating component; an interception net is installed on the treatment tank, and a guide rail is installed on the interception net; a movable suction mechanism is installed on the guide rail;

[0006] The mobile inhalation mechanism is connected to the floating component and communicates with the inside of the treatment box.

[0007] A water pump is connected inside the processing tank; a filter assembly is installed at the inlet end of the water pump, the filter assembly is a filter screen, and a water outlet pipe is installed at the outlet end of the water pump.

[0008] Furthermore, the mobile inhalation mechanism includes a lateral movement mechanism; an inhalation tube is slidably mounted on the lateral movement mechanism, an inhalation hood is mounted on the inhalation tube, and the inhalation hood is connected to a floating component; the lateral movement mechanism moves along a guide rail, and the lateral movement mechanism drives the inhalation hood to move along the interception net;

[0009] The suction tube is connected to a flexible tube, which is connected to the lower part of the treatment box.

[0010] Furthermore, the lateral movement mechanism includes a first motor and a lead screw; the fixed end of the first motor is installed at one end of the interception net, and the output end of the first motor is fixedly connected to the lead screw; a first slider is sleeved on the lead screw, and one end of the first slider is slidably connected to the guide rail; the suction tube is slidably installed on the first slider.

[0011] Furthermore, the transverse movement mechanism includes a second motor and a synchronous belt; the fixed end of the second motor is installed at one end of the interception net, and the output end of the second motor is connected to a pulley, which meshes with the synchronous belt; a second slider is fixedly connected to the synchronous belt, and the second slider is slidably connected to the guide rail; the suction pipe is slidably installed on the second slider.

[0012] Furthermore, the transverse mechanism includes a third motor and a drive wheel; the drive wheel is rotatably connected to the guide rail; the third motor is integrated on the drive wheel, a third slider is mounted on the third motor, and the third slider is slidably connected to the guide rail; the suction tube is slidably mounted on the third slider.

[0013] Furthermore, a sealing cover is rotatably mounted on the top of the processing box.

[0014] Furthermore, a sealing motor is installed on the upper part of the processing box, and the output end of the sealing motor is fixedly connected to one end of the sealing cover.

[0015] Furthermore, a compression assembly is installed inside the processing box.

[0016] Furthermore, the compression assembly includes a telescopic cylinder and a piston; the fixed end of the telescopic cylinder is installed at the bottom of the processing box; the piston is slidably connected inside the processing box, and the output end of the telescopic cylinder passes through the processing box and is fixedly connected to the piston.

[0017] Furthermore, the inhalation mask is configured in a funnel shape.

[0018] Beneficial effects

[0019] The advantages of this utility model over the prior art are as follows:

[0020] 1. This application sets up a mobile suction mechanism on the interception net, which can effectively suck floating objects on the water surface into the treatment tank along with the water, thereby improving the collection efficiency of floating objects. Since the floating objects are collected and removed in time, this avoids the problem of floating objects accumulating and clogging at the interception net, ensures the smooth flow of water in the water diversion tunnel, and helps maintain the normal power generation efficiency of the pumped storage power station.

[0021] 2. This application uses a telescopic cylinder to drive a piston to compress the collected floating objects, reducing their volume and facilitating subsequent transportation and processing. It can also improve the storage capacity of the processing tank to some extent.

[0022] 3. The working process of this application is almost completely automated, from the collection and compression of floating objects to the final release, reducing the need for manual operation and lowering labor costs.

[0023] 4. This application features an openable sealing cover. By activating the sealing motor, the sealing cover is opened to remove floating debris from the treatment box. It also takes into account the ease of disassembly and cleaning, making the whole system easy to maintain and repair.

[0024] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A perspective view of the entire embodiment of this utility model is shown.

[0027] Figure 2 A perspective view of the entire embodiment of this utility model is shown from another angle.

[0028] Figure 3 A perspective view of the entire embodiment of this utility model from below is shown.

[0029] Figure 4 A top view of an embodiment of the present invention is shown.

[0030] Figure 5 It shows Figure 4 Sectional view at point AA.

[0031] In the diagram: 1. Processing tank; 2. Floating component; 3. Interception net; 4. Guide rail; 5. Mobile suction mechanism;

[0032] 6. Water pump; 7. Filter assembly; 8. Water outlet pipe; 51. Lateral movement mechanism; 52. Suction pipe; 53. Suction hood; 54. Hose; 9. Sealing cap; 10. Sealing motor; 11. Telescopic cylinder; 12. Piston. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] This application provides a debris-blocking mechanism for a water diversion tunnel, with reference to... Figure 1 , Figure 2 , Figure 3 and Figure 5 It includes a treatment box 1 and a floating component 2; an interception net 3 is installed on the treatment box 1, and a guide rail 4 is installed on the interception net 3; a movable suction mechanism 5 is installed on the guide rail 4;

[0035] The mobile inhalation mechanism 5 is connected to the floating component 2, and the mobile inhalation mechanism 5 is in communication with the inside of the treatment box 1;

[0036] The processing tank 1 is connected to a water pump 6; a filter assembly 7 is installed at the inlet end of the water pump 6, and a water outlet pipe 8 is installed at the outlet end of the water pump 6.

[0037] During the operation of the debris interception mechanism, which is placed in the water diversion tunnel of the pumped storage power station, floating debris in the water is intercepted by the interception net 3. After the interception net 3 has been working for a period of time, the water pump 6 starts working, and at the same time, the moving suction mechanism 5 moves along the interception net 3. The water pump 6 sucks the floating debris accumulated on the interception net 3 into the treatment tank 1, and the water sucked in at the same time is discharged through the outlet pipe 8, so that the interception net 3 can continue to carry out normal interception work. After the interception net 3 is cleaned, the water pump 6 is turned off, and the interception net 3 continues to intercept. This process is repeated until too much floating debris accumulates in the treatment tank 1, at which point the floating debris in the treatment tank 1 is centrally processed.

[0038] This application, by setting a mobile suction mechanism 5 on the interception net 3, can effectively suck floating objects on the water surface into the treatment tank 1 along with the water, thereby improving the collection efficiency of floating objects. Since the floating objects are collected and removed in a timely manner, this avoids the problem of floating objects accumulating and clogging at the interception net 3, ensuring the smooth flow of water in the water diversion tunnel and helping to maintain the normal power generation efficiency of the pumped storage power station. It effectively prevents floating objects from entering the generator set or downstream waters, protects the safe operation of the power generation equipment, and also reduces pollution to the downstream environment.

[0039] In one embodiment of this utility model, reference is made to... Figure 1The mobile inhalation mechanism 5 includes a lateral movement mechanism 51; an inhalation tube 52 is slidably mounted on the lateral movement mechanism 51, and an inhalation hood 53 is mounted on the inhalation tube 52. The inhalation hood 53 is connected to the float 2; the lateral movement mechanism 51 moves along the guide rail 4, and the lateral movement mechanism 51 drives the inhalation hood 53 to move along the interception net 3.

[0040] The suction tube 52 is connected to a hose 54, which is connected to the lower part of the treatment box 1.

[0041] When it is necessary to collect floating objects on the interception net 3, the lateral movement mechanism 51 is activated. The lateral movement mechanism 51 moves along the guide rail 4, thereby driving the suction pipe 52 and the suction hood 53 to move along the interception net 3. The suction hood 53 sucks in the floating objects on the interception net 3 and then enters the processing box 1 through the suction pipe 52 and the hose 54; the floating objects are collected to ensure the normal operation of the interception net 3.

[0042] In one embodiment of this utility model, the transverse mechanism 51 includes a first motor and a lead screw; the fixed end of the first motor is installed at one end of the interception net 3, and the output end of the first motor is fixedly connected to the lead screw; a first slider is sleeved on the lead screw, and one end of the first slider is slidably connected to the guide rail 4; the suction pipe 52 is slidably installed on the first slider.

[0043] When the transverse mechanism 51 is activated, the lead screw is driven to rotate by the first motor. The lead screw drives the first slider to move along the guide rail 4, thereby driving the suction hood 53 and the suction tube 52 to move along the interception net 3.

[0044] In one embodiment of this utility model, reference is made to... Figure 2 A sealing cover 9 is rotatably installed on the top of the processing box 1.

[0045] In one embodiment of this utility model, reference is made to... Figure 2 A sealing motor 10 is installed on the upper part of the processing box 1, and the output end of the sealing motor 10 is fixedly connected to one end of the sealing cover 9.

[0046] During normal operation of the treatment box 1, the sealing motor 10 rotates to drive the sealing cover 9 to seal the top of the treatment box 1, preventing floating objects from floating out of the top of the treatment box 1; when it is necessary to centrally treat the floating objects in the treatment box 1, the sealing motor 10 is started to open the sealing cover 9 and remove the floating objects from the treatment box 1; at the same time, the convenience of disassembly and cleaning is taken into consideration, making the whole system easy to maintain and repair.

[0047] In one embodiment of this utility model, reference is made to... Figure 4 and Figure 5 The processing box 1 is equipped with a compression component.

[0048] In one embodiment of this utility model, reference is made to...Figure 4 and Figure 5 The compression assembly includes a telescopic cylinder 11 and a piston 12; the fixed end of the telescopic cylinder 11 is installed at the bottom of the processing box 1; the piston 12 is slidably connected inside the processing box 1, and the output end of the telescopic cylinder 11 passes through the processing box 1 and is fixedly connected to the piston 12.

[0049] When the floating debris in the treatment box 1 accumulates to a certain amount, the telescopic cylinder 11 is activated to drive the piston 12 to compress the floating debris, reducing the volume occupied by the floating debris in the treatment box 1. This allows the treatment box 1 to hold a larger amount of floating debris, thereby reducing the frequency of cleaning the treatment box 1. At the same time, when cleaning the floating debris in the treatment box 1 periodically, the sealing cover 9 is opened, and the telescopic cylinder 11 drives the piston 12 to move the floating debris upward, making it easier to remove and process the floating debris. By using the telescopic cylinder 11 to drive the piston 12 to compress the collected floating debris, the volume of the floating debris is reduced, which facilitates subsequent transportation and processing, and can also improve the storage capacity of the treatment box 1 to a certain extent.

[0050] The process described in this application is almost entirely automated, from the collection and compression of floating debris to its final release, reducing the need for manual operation and lowering labor costs.

[0051] In one embodiment of this utility model, the inhalation mask 53 is configured as a funnel shape.

[0052] Setting the suction hood 53 in a funnel shape makes it easier to bring various floating objects on the interception net 3 into the suction hood 53, thus improving the cleaning effect.

[0053] In one embodiment of this utility model, the transverse movement mechanism 51 includes a second motor and a synchronous belt; the fixed end of the second motor is installed at one end of the interception net 3, and the output end of the second motor is connected to a pulley, which meshes with the synchronous belt; a second slider is fixedly connected to the synchronous belt, and the second slider is slidably connected to the guide rail 4; the suction pipe 52 is slidably installed on the second slider.

[0054] By starting the second motor to drive the pulley to rotate, the synchronous belt is driven to rotate. The synchronous belt drives the second slider to move along the guide rail 4, which in turn drives the suction pipe 52 and the suction hood 53 to move along the interception net 3.

[0055] In one embodiment of this utility model, the transfer mechanism 51 includes a No. 3 motor and a drive wheel; the drive wheel is rotatably connected to the guide rail 4; the No. 3 motor is integrated on the drive wheel, a No. 3 slider is mounted on the No. 3 motor, and the No. 3 slider is slidably connected to the guide rail 4; the suction tube 52 is slidably mounted on the No. 3 slider.

[0056] The No. 3 motor is started, which drives the drive wheel to move on the guide rail 4. The No. 3 motor moves together with the drive wheel, and at the same time drives the No. 3 slider to move along the guide rail 4, thereby driving the suction hood 53 to move along the interception net 3 to clean up the floating objects on the interception net 3.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A debris-blocking mechanism for a water diversion tunnel, characterized in that, It includes a treatment box (1) and a float (2); an interception net (3) is installed on the treatment box (1), and a guide rail (4) is installed on the interception net (3); a mobile suction mechanism (5) is installed on the guide rail (4); The mobile inhalation mechanism (5) is connected to the floating component (2), and the mobile inhalation mechanism (5) is in communication with the inside of the treatment box (1); The processing tank (1) is connected to a water pump (6); a filter assembly (7) is installed at the inlet end of the water pump (6), and a water outlet pipe (8) is installed at the outlet end of the water pump (6).

2. The water diversion tunnel debris interception mechanism according to claim 1, characterized in that, The mobile inhalation mechanism (5) includes a lateral movement mechanism (51); an inhalation tube (52) is slidably mounted on the lateral movement mechanism (51), and an inhalation hood (53) is mounted on the inhalation tube (52), the inhalation hood (53) is connected to the float (2); the lateral movement mechanism (51) moves along the guide rail (4), and the lateral movement mechanism (51) drives the inhalation hood (53) to move along the interception net (3); The suction tube (52) is connected to a hose (54), which is connected to the lower part of the treatment box (1).

3. A wastewater interception mechanism for a water diversion tunnel according to claim 2, characterized in that, The transverse mechanism (51) includes a first motor and a lead screw; the fixed end of the first motor is installed at one end of the interception net (3), and the output end of the first motor is fixedly connected to the lead screw; a first slider is sleeved on the lead screw, and one end of the first slider is slidably connected to the guide rail (4); the suction pipe (52) is slidably installed on the first slider.

4. A wastewater interception mechanism for a water diversion tunnel according to claim 2, characterized in that, The transverse mechanism (51) includes a second motor and a synchronous belt; the fixed end of the second motor is installed at one end of the interception net (3), and the output end of the second motor is connected to a pulley, which meshes with the synchronous belt; a second slider is fixedly connected to the synchronous belt, and the second slider is slidably connected to the guide rail (4); the suction pipe (52) is slidably installed on the second slider.

5. A wastewater interception mechanism for a water diversion tunnel according to claim 2, characterized in that, The transverse mechanism (51) includes a No. 3 motor and a drive wheel; the drive wheel is tumbledly connected to the guide rail (4); the No. 3 motor is integrated on the drive wheel, the No. 3 slider is mounted on the No. 3 motor, and the No. 3 slider is slidably connected to the guide rail (4); the suction tube (52) is slidably mounted on the No. 3 slider.

6. A wastewater interception mechanism for a water diversion tunnel according to claim 3, characterized in that, The top of the processing box (1) is rotatably fitted with a sealing cover (9).

7. A wastewater interception mechanism for a water diversion tunnel according to claim 4, characterized in that, A sealing motor (10) is installed on the upper part of the processing box (1), and the output end of the sealing motor (10) is fixedly connected to one end of the sealing cover (9).

8. A wastewater interception mechanism for a water diversion tunnel according to claim 1, characterized in that, The processing box (1) is equipped with a compression component.

9. A wastewater interception mechanism for a water diversion tunnel according to claim 8, characterized in that, The compression assembly includes a telescopic cylinder (11) and a piston (12); the fixed end of the telescopic cylinder (11) is installed at the bottom of the processing box (1); the piston (12) is slidably connected inside the processing box (1), and the output end of the telescopic cylinder (11) passes through the processing box (1) and is fixedly connected to the piston (12).

10. A wastewater interception mechanism for a water diversion tunnel according to claim 2, characterized in that, The inhalation mask (53) is configured in a funnel shape.