Movable trash rack of water inlet of hydropower station

Abstract

This invention discloses a movable debris barrier device for the intake of a hydropower station, belonging to the technical field of water conservancy and hydropower engineering equipment. It includes a wall, with a support frame fixedly connected to the top of the wall. A winch is fixedly installed in the middle of the support frame, and a debris barrier assembly is installed below the winch. A cleaning component is located on one side of the support frame. The cleaning component is linked to the debris barrier assembly, allowing for surface cleaning of the barrier while the winch lifts it, eliminating the need for manual cleaning. Combined with a water spray system, the cleaning effect is further enhanced, significantly reducing the workload of on-site operators and improving the maintenance and cleaning efficiency of the debris barrier device. The debris barrier assembly of this invention adopts a multi-unit modular design; if a single debris barrier is damaged, only the damaged component needs to be replaced, eliminating the need to replace the entire debris barrier assembly, thus significantly reducing equipment maintenance and replacement costs.

Description

Technical Field

[0001] This invention belongs to the technical field of water conservancy and hydropower engineering equipment, specifically relating to a movable debris barrier device at the intake of a hydropower station. Background Technology

[0002] The intake of a hydropower station is a critical channel for water to enter the generator unit. The upstream water often carries various pollutants such as branches, weeds, domestic waste, and aquatic floating objects. If these are not effectively intercepted, they can easily enter core equipment such as turbines and spiral casings, causing equipment wear, blockages, increased vibration, and even unit shutdown failures, seriously affecting the safe and stable operation and power generation efficiency of the hydropower station.

[0003] Existing technologies for debris-blocking devices in hydropower stations still have many shortcomings in terms of debris-blocking cleaning, component maintenance and replacement, such as cumbersome cleaning operations for debris-blocking grids and the need to replace the entire grid after damage, resulting in resource waste. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a movable debris barrier device for the intake of a hydropower station, which facilitates cleaning of the barrier and allows for replacement of damaged sections without requiring complete replacement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a movable debris barrier device for the intake of a hydropower station, comprising a wall, a support frame fixedly connected to the top of the wall, a winch fixedly installed in the middle of the support frame, a debris barrier assembly installed below the winch, and a cleaning assembly provided below one side of the support frame. The cleaning component includes a mounting base, which is fixedly connected to the lower side of one side of the support frame. A square plug is tightly inserted into one side of the mounting base, and a cleaning brush is fixedly connected to one end of the square plug. The square plug and the mounting base are fixed by a limiting component.

[0006] Preferably, the limiting component includes a limiting rod, which is inserted into the middle of the mounting base. One end of the limiting rod is fixedly connected to a protective cover. The internal thread of the protective cover is connected to an external threaded pipe seat. One side of the external threaded pipe seat is fixedly connected to the mounting base. An auxiliary rotating rod is fixedly connected around and around the surface of the protective cover.

[0007] Preferably, a sponge sleeve is fixedly fitted onto the surface of the auxiliary rotating rod.

[0008] Preferably, a rubber sealing gasket is fixedly connected to one side of the protective cover.

[0009] Preferably, one side of the square insert has a limiting hole for tightly engaging with the limiting rod.

[0010] Preferably, the trash rack assembly includes a rectangular outer frame, which is fixedly connected to the bottom of the winch. A positioning seat is fixedly connected inside the rectangular outer frame. The trash rack body is tightly inserted into one side of the rectangular outer frame. Fixing screws are inserted into both ends of the trash rack body, and the fixing screws are threadedly connected to the positioning seat.

[0011] Preferably, a rubber washer is fitted onto the screw shaft of the fixing screw.

[0012] Preferably, one side of the trash rack body is symmetrically and fixedly connected with a handle.

[0013] Preferably, stabilizing sliders are fixedly connected to both ends of the upper part of the rectangular outer frame, and a stabilizing rod is slidably connected to one end of the stabilizing slider. The stabilizing rod is fixedly connected inside the support frame, and the stabilizing slider and the support frame are in contact and slidably connected.

[0014] Preferably, a buffer anti-collision pad is fixedly connected to the lower part of the rectangular outer frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The cleaning component of this invention is linked with the trash rack component, and the cleaning operation on the surface of the rack can be completed during the process of the winch lifting the trash rack. There is no need for manual cleaning. With the help of water spraying equipment, the cleaning effect can be further improved, which greatly reduces the workload of on-site operators and improves the maintenance and cleaning efficiency of the trash rack device.

[0016] 2. The trash rack assembly of this invention adopts a multi-unit modular design. When a single trash rack body is damaged, only the corresponding damaged part needs to be replaced, without replacing the entire trash rack assembly, which greatly reduces the maintenance and replacement cost of the equipment. At the same time, the cleaning brush of the cleaning component adopts a plug-in fixed and locking mechanism, which makes disassembly and replacement simple and convenient, without the need for professional tools, thus improving the ease of maintenance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after partial separation and cross-section; Figure 3 This is a schematic diagram of the cleaning component of the present invention; Figure 4 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 5 This is a schematic diagram of the structure of the trash rack assembly of the present invention.

[0018] In the diagram: 1. Wall; 2. Support frame; 3. Winch; 4. Trash rack assembly; 41. Rectangular outer frame; 42. Trash rack body; 43. Fixing screw; 44. Rubber washer; 45. Stabilizing slider; 46. Stabilizing slide bar; 47. Handle; 48. Positioning seat; 5. Cleaning assembly; 51. Mounting base; 52. Square insert; 53. Cleaning brush; 54. Limiting assembly; 541. Limiting rod; 542. Protective cover; 543. External threaded pipe seat; 544. Auxiliary rotating rod; 545. Sponge sleeve; 546. Rubber sealing gasket. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1-5 The present invention provides the following technical solution: a movable debris barrier device for the intake of a hydropower station, comprising a wall 1, a support frame 2 fixedly connected to the top of the wall 1, a winch 3 fixedly installed in the middle of the support frame 2, a debris barrier assembly 4 installed below the winch 3, and a cleaning assembly 5 provided below one side of the support frame 2. The cleaning component 5 includes a mounting base 51, which is fixedly connected to the lower side of one side of the support frame 2. A square plug 52 is tightly inserted into one side of the mounting base 51. A cleaning brush 53 is fixedly connected to one end of the square plug 52. The square plug 52 and the mounting base 51 are fixed by a limiting component 54.

[0021] Specifically, the limiting component 54 includes a limiting rod 541, which is inserted into the middle of the mounting base 51. One end of the limiting rod 541 is fixedly connected to a protective cover 542. The internal thread of the protective cover 542 is connected to an external threaded tube seat 543. One side of the external threaded tube seat 543 is fixedly connected to the mounting base 51. An auxiliary rotating rod 544 is fixedly connected around and around the surface of the protective cover 542.

[0022] By adopting the above technical solution, when dirt adheres to the surface of the trash rack assembly 4 after long-term use, the trash rack assembly 4 can be lifted by the winch 3. When lifted, the surface of the cleaning brush 53 is in contact with the surface of the trash rack assembly 4 for cleaning. During cleaning, an external water supply device can spray water for cleaning. By rotating the protective cover 542 and separating it from the external threaded pipe seat 543, the limiting rod 541 can be removed, thereby separating the square insert 52 from the mounting base 51, and the cleaning brush 53 can be removed for replacement.

[0023] Specifically, a sponge sleeve 545 is fixedly fitted onto the surface of the auxiliary rotating rod 544.

[0024] By adopting the above technical solution, the sponge sleeve 545 can improve the comfort when rotating the auxiliary rotating rod 544.

[0025] Specifically, a rubber sealing gasket 546 is fixedly connected to one side of the protective cover 542.

[0026] By adopting the above technical solution, the rubber sealing gasket 546 facilitates the sealing between the protective cover 542 and the mounting base 51, preventing water from seeping in.

[0027] Specifically, a limiting hole is provided on one side of the square insert 52 to be tightly inserted into the limiting rod 541.

[0028] By adopting the above technical solution, the limiting hole facilitates the insertion of the limiting rod 541 and fixes the square insert block 52.

[0029] In this embodiment, when dirt accumulates on the surface of the trash rack assembly 4 after prolonged use, the trash rack assembly 4 can be lifted by the winch 3. When lifted, the surface of the cleaning brush 53 will come into contact with the surface of the trash rack assembly 4 for cleaning. During cleaning, an external water supply device can spray water for cleaning. By rotating the protective cover 542 and separating it from the external threaded pipe seat 543, the limiting rod 541 can be removed, thereby separating the square insert 52 from the mounting base 51, and the cleaning brush 53 can be removed and replaced. This makes it convenient to clean the trash rack assembly 4 during use.

[0030] Example 2 The difference between this embodiment and embodiment 1 is that, specifically, the trash rack assembly 4 includes a rectangular outer frame 41, which is fixedly connected to the bottom of the winch 3. A positioning seat 48 is fixedly connected inside the rectangular outer frame 41. A trash rack body 42 is tightly inserted into one side of the rectangular outer frame 41. Fixing screws 43 are inserted into both ends of the trash rack body 42. The fixing screws 43 and the positioning seat 48 are threadedly connected.

[0031] By adopting the above technical solution, the trash rack assembly 4 is modularly designed and consists of multiple trash rack bodies 42. This allows for easy replacement of the entire trash rack body 42 by unscrewing the fixing screws 43 when damage occurs.

[0032] Specifically, a rubber washer 44 is fitted onto the screw of the fixing screw 43.

[0033] By adopting the above technical solution, the rubber washer 44 provides a fastening force when the fixing screw 43 is fixed.

[0034] Specifically, one side of the trash rack body 42 is symmetrically and fixedly connected with a handle 47.

[0035] By adopting the above technical solution, the handle 47 is designed to make it easy to remove the main body 42 of the trash rack.

[0036] Specifically, stabilizing sliders 45 are fixedly connected to both ends of the upper part of the rectangular outer frame 41, and stabilizing rods 46 are slidably connected to one end of the stabilizing sliders 45. The stabilizing rods 46 are fixedly connected inside the support frame 2, and the stabilizing sliders 45 and the support frame 2 are in contact and slidably connected.

[0037] By adopting the above technical solution, the stabilizing slider 45 and the stabilizing rod 46 work together to facilitate the stable lifting and lowering of the rectangular outer frame 41.

[0038] Specifically, a buffer anti-collision pad is fixedly connected to the bottom of the rectangular outer frame 41.

[0039] By adopting the above technical solution, the buffer anti-collision pad can help avoid damage from collision with the bottom wall during the lifting and lowering of the fence.

[0040] In this embodiment, the trash rack assembly 4 is modularly designed, consisting of multiple trash rack bodies 42. This allows for easy replacement of the entire trash rack body 42 by unscrewing the fixing screws 43 when damage occurs. When the rack is damaged, only the corresponding part needs to be replaced instead of the entire assembly.

[0041] The working principle and usage process of this invention: The device is fixed at the water inlet of the hydropower station via the wall 1. When the winch 3 is powered on, it can drive the trash rack assembly 4 below to move up and down along the support frame 2, lowering the trash rack assembly 4 to the corresponding water level at the water inlet. The structure of the trash rack body 42 effectively intercepts various types of pollutants in the water flow, preventing them from entering the power generation equipment channel. During the lifting and lowering of the trash rack assembly 4, the stabilizing sliders 45 at both ends of the rectangular outer frame 41 slide along the stabilizing slide rods 46 inside the support frame 2. At the same time, the stabilizing sliders 45 slide in close contact with the support frame 2, ensuring the stability of the lifting and lowering of the trash rack assembly 4. The buffer anti-collision pad below the rectangular outer frame 41 prevents the rack from colliding with the bottom wall 1 and causing damage when it descends. When the trash rack assembly 4 has been used for a long time and has dirt on its surface, the winch 3 is started to lift the trash rack assembly 4 upward. During the lifting process, the surface of the cleaning brush 53 of the cleaning component 5 on one side of the support frame 2 is in close contact with the surface of the trash rack assembly 4 to clean the dirt on the surface of the rack. Synchronous cleaning can be combined with external water supply equipment to spray water onto the grid, improving the cleaning effect. After cleaning, the winch 3 can lower the trash rack assembly 4 back to the working position to continue the trash-blocking function. If the cleaning brush 53 is worn and needs to be replaced, the auxiliary rotating rod 544 on the surface of the protective cover 542 can be rotated to separate the protective cover 542 from the external threaded pipe seat 543. The limiting rod 541 can then be pulled out from the limiting hole of the mounting base 51 and the square insert 52, allowing the square insert 52 to be connected to the mounting base 51. Separate the seat 51, remove the cleaning brush 53 to complete the replacement, and then reverse the operation to re-fix it; the trash rack assembly 4 is a modular design, consisting of multiple trash rack bodies 42. If a trash rack body 42 is damaged, unscrew the fixing screws 43 that are threaded to the positioning seat 48 at both ends, pull the damaged trash rack body 42 out of the rectangular frame 41 through the handle 47, replace the new trash rack body 42, and then tighten the fixing screws 43 again. There is no need to replace the entire trash rack assembly 4.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A movable debris-blocking device for the intake of a hydropower station, comprising a wall (1), a support frame (2) fixedly connected to the top of the wall (1), and a winch (3) fixedly installed in the middle of the support frame (2), characterized in that: A trash rack assembly (4) is installed below the winch (3), and a cleaning assembly (5) is installed below one side of the support frame (2). The cleaning component (5) includes a mounting base (51), which is fixedly connected to the lower side of one side of the support frame (2). A square plug (52) is tightly inserted into one side of the mounting base (51), and a cleaning brush (53) is fixedly connected to one end of the square plug (52). The square plug (52) and the mounting base (51) are fixed by a limiting component (54).

2. The movable debris-blocking device at the intake of a hydropower station according to claim 1, characterized in that: The limiting component (54) includes a limiting rod (541), which is inserted into the middle of the mounting base (51). One end of the limiting rod (541) is fixedly connected to a protective cover (542). The internal thread of the protective cover (542) is connected to an external threaded pipe seat (543). One side of the external threaded pipe seat (543) is fixedly connected to the mounting base (51). An auxiliary rotating rod (544) is fixedly connected around the surface of the protective cover (542).

3. A movable debris-blocking device for the intake of a hydropower station according to claim 2, characterized in that: The surface of the auxiliary rotating rod (544) is fixedly fitted with a sponge sleeve (545).

4. A movable debris-blocking device for the intake of a hydropower station according to claim 2, characterized in that: A rubber sealing gasket (546) is fixedly connected to one side of the protective cover (542).

5. A movable debris-blocking device for the intake of a hydropower station according to claim 2, characterized in that: The square insert (52) has a limiting hole on one side that is tightly inserted into the limiting rod (541).

6. A movable debris-blocking device for the intake of a hydropower station according to claim 1, characterized in that: The trash rack assembly (4) includes a rectangular outer frame (41), which is fixedly connected to the bottom of the winch (3). A positioning seat (48) is fixedly connected inside the rectangular outer frame (41). A trash rack body (42) is tightly inserted into one side of the rectangular outer frame (41). Fixing screws (43) are inserted into both ends of the trash rack body (42). The fixing screws (43) and the positioning seat (48) are threaded together.

7. A movable debris-blocking device for the intake of a hydropower station according to claim 6, characterized in that: A rubber washer (44) is fitted onto the screw of the fixing screw (43).

8. A movable debris-blocking device for the intake of a hydropower station according to claim 6, characterized in that: One side of the trash rack body (42) is symmetrically connected with a handle (47).

9. A movable debris-blocking device for the intake of a hydropower station according to claim 6, characterized in that: Stabilizing sliders (45) are fixedly connected to both ends of the rectangular outer frame (41). A stabilizing rod (46) is slidably connected to one end of the stabilizing slider (45). The stabilizing rod (46) is fixedly connected inside the support frame (2), and the stabilizing slider (45) and the support frame (2) are in contact and slidably connected.

10. A movable debris-blocking device for the intake of a hydropower station according to claim 6, characterized in that: A buffer anti-collision pad is fixedly connected to the bottom of the rectangular outer frame (41).

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