A spillway aeration channel drainage hole debris barrier device

Abstract

This application relates to the field of spillway debris interception technology. ， In particular, this invention relates to a debris-blocking grid device for the drainage holes of an aeration tank in a spillway, comprising multiple sets of circular steel rings and vertical support rods. The multiple sets of circular steel rings are connected along their circumference via the vertical support rods, and the diameter of the multiple sets of circular steel rings increases sequentially from top to bottom, forming a debris discharge frame. This application utilizes multiple sets of circular steel rings and vertical support rods, covering the drainage holes and enclosing them. During spillway discharge, floating debris is blocked outside the drainage holes, ensuring stable drainage and allowing the aeration tank ventilation system to operate normally. This ensures safe and stable spillway discharge. Furthermore, when not discharging, the drainage holes can be cleaned with cleaning blocks. Therefore, this invention effectively solves the problem of existing drainage holes being blocked by floating debris during drainage, thus affecting the efficiency of flood discharge.

Description

Technical Field

[0001] This application relates to the field of spillway debris interception technology. ， In particular, it relates to a debris barrier device for the drainage holes of an aeration channel in a spillway. Background Technology

[0002] The spillway is the main flood discharge structure of the hydropower station, mainly composed of an intake channel, gate chamber, spillway, stilling basin, and outlet apron and bank protection. The spillway is equipped with three sill-type aeration channels. These aeration channels are designed to improve the spillway bottom plate's resistance to erosion and cavitation, maintaining an aeration cavity of 15.0m to 25.0m at all discharge levels. This effectively protects the spillway bottom plate from cavitation damage. Each aeration channel has two drainage holes to drain seepage water through drainage channels to the base surface, preventing the formation of uplift pressure.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: During the flood season, the content of floating debris in the water is high. When the spillway discharges floodwater, the floating debris will be carried into the aeration tank. When the drainage hole is drained, the floating debris will block the drainage hole, and water will easily accumulate in the aeration tank. Poor drainage will seriously affect the normal operation of the aeration tank ventilation system and pose an unstable factor to the safe and stable operation of the spillway. Therefore, we propose a debris barrier device for the drainage hole of the spillway aeration tank. Utility Model Content

[0004] This application provides a debris-blocking grid device for the drainage holes of the aeration channel in a spillway, which solves the reliability problem of drainage from the drainage holes of the aeration channel, ensures the normal operation of the aeration channel ventilation system, and guarantees the safe and stable operation of the spillway during flood discharge.

[0005] This application provides a debris-blocking grid device for the drainage holes of an aeration channel in a spillway, including multiple sets of circular steel rings, and further comprising:

[0006] A vertical support rod is provided, wherein multiple sets of circular steel rings are connected along their circumference via the vertical support rod, and the diameter of the multiple sets of circular steel rings increases sequentially from top to bottom. The multiple sets of circular steel rings and the vertical support rod form a sewage rack, and a flood discharge hole is formed between adjacent sets of circular steel rings and adjacent vertical support rods.

[0007] The mounting block is located on the circumference of the circular steel ring at the bottom. It is used to fix the sewage rack directly above the drain hole, so that the sewage can pass through the flood discharge hole and at the same time the formed flood discharge hole can block the floating objects in the sewage before entering the drain hole for sewage discharge.

[0008] The top end cap is located on top of the circular steel ring, and the top of the circular steel ring has multiple sets of transverse rods arranged inside the top end cap, and the outer side of the top end cap is provided with a cleaning component for cleaning the flood discharge hole.

[0009] Furthermore, the cleaning component includes: a cleaning rod, which is provided with multiple sets of circular steel rings that are evenly rotated on the outer wall of the multiple sets of circular steel rings, the cleaning rod is driven by a power device, and the cleaning rod is arranged parallel to the vertical support rod; and a cleaning block, which is provided with multiple sets of cleaning blocks along the length of the cleaning rod, and the cleaning block matches the flood discharge hole.

[0010] Furthermore, the outer wall of the top end cover is provided with an anti-detachment slide rail, and multiple sets of moving blocks are slidably connected inside the anti-detachment slide rail. The multiple sets of moving blocks are connected to the cleaning rod, and the top of the cleaning rod is connected to a swing frame. The interior of the top end cover is connected to a power device, and the swing frame is driven by the power device.

[0011] Furthermore, the cleaning rod and the cleaning block are connected by an elastic element.

[0012] Furthermore, guide surfaces are provided on both sides of the cleaning block.

[0013] Furthermore, the surface of the swing frame is designed as an arc shape with a central protrusion and concave sides, which facilitates the guidance of floating objects.

[0014] Furthermore, the vertical support rod and the circular steel ring, as well as the mounting block and the circular steel ring located at the bottom, are all welded together.

[0015] The technical solution provided in this application has at least the following technical effects or advantages:

[0016] This application employs multiple sets of circular steel rings and vertical support rods, which are placed over and enclose the drainage holes. When the spillway discharges floodwater, floating debris is blocked outside the drainage holes, allowing for stable drainage. This ensures the normal operation of the aeration tank ventilation system and safe and stable flood discharge from the spillway. Furthermore, when not discharging water, cleaning blocks can be used to clean the drainage holes. Therefore, this application effectively solves the problem of existing drainage holes being blocked by floating debris during drainage, thus affecting the efficiency of flood discharge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a structural schematic diagram of the entire application from another angle;

[0019] Figure 3 This is a structural diagram of the cleaning component of this application;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 10. Circular steel ring; 20. Vertical support rod; 101. Flood discharge hole; 100. Sewage discharge frame; 30. Mounting block; 40. Top end cap; 41. Horizontal rod; 5. Cleaning component; 51. Cleaning rod; 52. Cleaning block; 53. Anti-detachment slide rail; 54. Moving block; 55. Swing frame; 56. Elastic component; 57. Guide surface. Detailed Implementation

[0022] 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.

[0023] To better understand the above technical solution, the following will provide a detailed explanation of the above technical solution in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figures 1-4 It includes multiple sets of circular steel rings 10, and multiple sets of vertical support rods 20 arranged along its circumference. The diameter of the multiple sets of circular steel rings 10 increases sequentially from top to bottom. The multiple sets of circular steel rings 10 and the vertical support rods 20 form a sewage rack 100. A flood discharge hole 101 is formed between adjacent sets of circular steel rings 10 and adjacent sets of vertical support rods 20. The multiple sets of circular steel rings 10 and the multiple sets of vertical support rods 20 form a trapezoidal frustum cover (hereinafter referred to as the cover), which can... The system allows floating debris in the water to flow along the outer wall of the trapezoidal truncated cone during flood discharge, reducing clogging of the flood discharge hole 101. The top of the circular steel ring 10 is provided with a top end cap 40, and the top end cap 40 has multiple sets of horizontal rods 41 arranged inside. The outer side of the top end cap 40 is provided with a cleaning component 5 for cleaning the flood discharge hole 101. The vertical support rod 20, the circular steel ring 10, the mounting block 30, and the circular steel ring 10 located at the bottom are all welded together.

[0025] It should be noted that the vertical support rods 20 are made of threaded steel of the same length (450mm) (16mm), and are welded to circular steel rings 10 of different sizes. The lower part is welded to the circular steel ring 10 with the largest diameter (600mm), and the upper part is welded to the top end cap 40. The spacing between the vertical support rods 20 is 47mm.

[0026] The top end cap 40 is made by welding a circular steel ring (16mm) and a circular steel ring 10 (30mm in diameter), located at the top of the device, and its lower part is welded to the upper part of the vertical support rod 20.

[0027] The mounting block 30 is a square steel plate (40mm wide, 80mm long, and 20mm thick), located at the bottom of the largest diameter circular steel ring 10. The upper part is welded to the largest diameter circular steel ring 10. Holes (12mm) are provided on both sides of the mounting block 30. The lower part is connected to the ground by an expansion bolt (M12×200mm) through the middle hole, so that it is firmly fixed to the ground.

[0028] The cleaning component 5 includes multiple sets of cleaning rods 51 that are evenly rotated on the outer wall of multiple sets of circular steel rings 10. The cleaning rods 51 are driven by a power device. The cleaning rods 51 are arranged parallel to the vertical support rods 20. The power device is preferably a waterproof motor. Multiple sets of cleaning blocks 52 are provided along the length of the cleaning rods 51. The cleaning blocks 52 are matched with the flood discharge holes 101. The cleaning rods 51 and the cleaning blocks 52 are connected by an elastic element 56. The elastic element 56 is preferably a spring. A telescopic rod is sleeved inside the elastic element 56 to prevent the elastic element 56 from deforming. Guide surfaces 57 are provided on both sides of the cleaning blocks 52.

[0029] The outer wall of the top end cap 40 is provided with an anti-detachment slide rail 53, and multiple sets of moving blocks 54 are slidably connected inside the anti-detachment slide rail 53. The multiple sets of moving blocks 54 are connected to the cleaning rod 51. The top of the cleaning rod 51 is connected to a swing frame 55. The inside of the top end cap 40 is connected to a power device. The swing frame 55 is driven by the power device. The surface of the swing frame 55 is set as an arc shape with a central protrusion and concave sides, which facilitates the guidance of floating objects.

[0030] After the flood discharge is completed, the trapezoidal truncated cone cover is exposed. Due to the presence of floating debris, there is some floating debris on the outside of the trapezoidal truncated cone cover. When the discharge flow is large, most of the floating debris can be washed away by the water flow. However, when the discharge flow is small, some of the floating debris that cannot be washed away by the water flow can be intercepted on the outside of the cover, and some may even adhere to the inside of the flood discharge hole 101. At this time, the power device is activated, and the swing frame 55 is driven by the power device to rotate within the anti-detachment slide rail 53. The swing frame 55 is an arc shape with a convex center and concave sides, which facilitates the guidance of floating debris and prevents it from accumulating on the top of the cover. The swing frame 55 causes the cleaning rod 51 and the cleaning block 52 connected to the swing frame 55 to rotate along the outer wall of the cover. Moreover, the cleaning rod 51 is set parallel to the vertical support rod 20, which can effectively remove floating debris from the outside of the cover. The cleaning process is as follows: if there are floating objects blocking the flood discharge hole 101, they will be squeezed into the cover by the elastic element 56 and the cleaning block 52. It should be noted that the drainage hole needs to be cleaned regularly. The cleaning rod 51 and the cleaning block 52 can reduce the frequency of regular cleaning and can clean the floating objects inside the cover, thereby reducing the problem of clogging. It can also allow for timely replacement and adjustment of vulnerable parts such as the elastic element 56. There are gaps between the cleaning blocks 52 to avoid multiple sets of circular steel rings 10. Both sides of the cleaning block 52 are provided with guide surfaces 57, which can facilitate the elastic element 56 to be squeezed when it comes into contact with the vertical support rod 20 through the guide surfaces 57 during rotation, and also facilitate its release after entering the flood discharge hole 101. It can also prevent the elastic element 56 from getting stuck.

[0031] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0032] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A spillway aerator spillway orifice trash rack device comprising a plurality of circular steel rings (10) characterized in that, Also includes: A vertical support rod (20) is provided. The multiple sets of circular steel rings (10) are connected along their circumference via the vertical support rod (20). The diameter of the multiple sets of circular steel rings (10) increases sequentially from top to bottom. The multiple sets of circular steel rings (10) and the vertical support rod (20) form a sewage rack (100). A flood discharge hole (101) is formed between adjacent sets of circular steel rings (10) and adjacent vertical support rods (20). The mounting block (30) is located on the circumference of the circular steel ring (10) at the bottom. It is used to fix the sewage rack (100) directly above the drain hole through the mounting block (30), so that the sewage passes through the flood discharge hole (101) and at the same time the formed flood discharge hole (101) blocks the floating objects in the sewage before entering the drain hole for sewage discharge. The top end cap (40) is located on top of the circular steel ring (10), and the top end cap (40) has multiple sets of transverse rods (41) arranged inside, and the top end cap (40) has a cleaning component (5) for cleaning the flood discharge hole (101) on the outside.

2. A trash rack device for spillway aerator outlet according to claim 1, wherein The cleaning component (5) includes: Cleaning rod (51), the cleaning rod (51) is provided with multiple sets and is evenly rotated on the outer wall of multiple sets of circular steel rings (10), the cleaning rod (51) is driven by a power device, and the cleaning rod (51) is arranged parallel to the vertical support rod (20); The cleaning block (52) is provided with multiple sets of cleaning blocks (52) along the length direction of the cleaning rod (51), and the cleaning block (52) matches the flood discharge hole (101).

3. A trash rack device for spillway aerator outlet according to claim 2, wherein The outer wall of the top end cap (40) is provided with an anti-detachment slide rail (53), and multiple sets of moving blocks (54) are slidably connected inside the anti-detachment slide rail (53). The multiple sets of moving blocks (54) are connected to the cleaning rod (51). The top of the cleaning rod (51) is connected to a swing frame (55), and the inside of the top end cap (40) is connected to a power device. The swing frame (55) is driven by the power device.

4. The spillway aeration channel drainage hole debris barrier device as described in claim 3, characterized in that, The cleaning rod (51) and the cleaning block (52) are connected by an elastic element (56).

5. A trash rack device for spillway aeration slots according to claim 4, wherein The cleaning block (52) has guide surfaces (57) on both sides.

6. A trash rack device for spillway aeration slots as defined in claim 3, wherein The surface of the swing frame (55) is set as an arc shape with a central protrusion and concave sides, which facilitates the guidance of floating objects.

7. A trash rack device for spillway aeration slot drain according to claim 1, wherein The vertical support rod (20) and the circular steel ring (10), the mounting block (30) and the circular steel ring (10) at the bottom are all welded together.

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