A floating debris intercepting device for a diversion tunnel

Abstract

The utility model discloses a diversion tunnel floating sundry intercepting device relates to the technical field of water surface sundry collection. Its structure includes intercepting fence, garbage storage floating groove, intercepting fence is located downstream one end of water flow and garbage storage floating groove is located the upper end portion articulation of water flow upper reaches, installs chain lifting device on intercepting fence, intercepting fence is located one end of water flow upper reaches and is installed with a row of first floating body through a row of first padlock, garbage storage floating groove lower end installs a row of second padlock, and the second padlock lower end is installed with gravity anchor point. The utility model discloses through automatic lifting device can with sundry fast send to storage floating groove, reduces artificial cleaning intensity and frequency, and the device is flexible with water level change, always keeps good intercepting state, and the separation area reduces water resistance, and the deep area reduces the resistance and intercepts the fine garbage, reduces the cleaning trouble, the structure is stable, can bear the water flow impact and sundry weight, and the lifting harrow tooth is efficient, improves the safety and economy of the overall water power station operation.

Description

Technical Field

[0001] This utility model belongs to the field of water surface debris collection technology, and in particular relates to a device for intercepting floating debris in a water diversion tunnel. Background Technology

[0002] In the construction of hydroelectric power stations, damming is a crucial engineering step, designed to accumulate river water to create a water level difference and provide power for turbines to generate electricity. However, during dam construction, it is necessary to drain the upstream water to ensure construction safety and progress. This process often requires the construction of water diversion tunnels to guide the water flow. But water diversion tunnels are easily blocked by large floating objects such as tree branches and plastic waste during operation, leading to obstructed water flow and posing safety hazards.

[0003] Traditional methods for intercepting floating debris often rely on manual retrieval or simple fixed trash racks. However, manual retrieval is not only inefficient but also poses significant safety risks in high-velocity water environments. While fixed trash racks can intercept floating debris to some extent, their effectiveness is limited by the size and shape of the grid. When intercepting debris of all sizes, the water resistance is high, posing a significant threat to the trash racks, and the overall retrieval of floating debris is labor-intensive. Furthermore, fixed trash racks are prone to reduced flow capacity due to debris accumulation, requiring regular cleaning and maintenance. To address these issues, we designed a floating debris interception device for water diversion tunnels.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a floating debris interception device for water diversion tunnels. By combining interception fences, garbage storage floating troughs, chain lifting devices, etc., the debris is screened and then quickly sent to the storage floating trough, reducing the intensity and frequency of manual cleaning.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a floating debris interception device for a water diversion tunnel, comprising an interception fence and a waste storage trough; the downstream end of the interception fence is hinged to the upper end of the upstream waste storage trough; a chain lifting device is installed on the interception fence; a row of first floats is installed on the upstream end of the interception fence via a row of first chains; a row of second chains is installed at the lower end of the waste storage trough, and gravity anchors are installed at the lower ends of the second chains.

[0007] As a preferred embodiment of this utility model, the interception fence is a rectangular structure with vertical filtering and interception rods; a row of equally spaced passage slots is opened at the upper end of the interception fence; the passage slots and the vertical filtering and interception rods on both sides form a chain conveying channel; a row of connecting support rods is vertically fixed at the upper end of the interception fence, and the connecting support rods are staggered with the passage slots; the ends of the connecting support rods are hinged to the waste storage floating trough through hinge seats; a row of single lugs is fixed at the lower end of the interception fence; the lower end of the first chain is installed on the single lugs.

[0008] As a preferred technical solution of this utility model, a dense rod group is installed between adjacent vertical filter interception rods between two adjacent through slots; the dense rod group includes densified horizontal bars vertically fixed on two adjacent vertical filter interception rods, and a number of densified vertical bars vertically fixed between two densified horizontal bars; a row of the dense rod group divides the interception fence from top to bottom into a sorting area, a dense interception area, and a deep area resistance reduction interception area.

[0009] As a preferred embodiment of this utility model, the chain lifting device includes a drive shaft, a driven shaft, sprockets, a chain, a drive motor, and lifting rake teeth; the drive shaft is mounted on the upper end of the interception fence via a bearing seat; the driven shaft is mounted in the deep resistance-reducing interception zone of the interception fence via a bearing seat; a sprocket is mounted on both the drive shaft and the driven shaft at a position on the chain conveying channel, and the chain is mounted on the two sprockets located above and below the chain conveying channel; a ring of evenly distributed lifting rake teeth is mounted on the chain; the drive motor is mounted on one side of the upper end of the interception fence, and the drive motor is drivenly connected to one end of the drive shaft.

[0010] As a preferred embodiment of this invention, the angle between the lifting rake teeth and the conveying direction of the chain is an acute angle.

[0011] As a preferred embodiment of this utility model, the angle between the lifting rake teeth and the chain conveying direction is in the range of 45°-60°.

[0012] This utility model has the following beneficial effects: This invention utilizes an interception fence design, including vertical filter interception bars and dense bar arrays, to effectively intercept floating debris of different sizes and shapes. The division into sorting zones, dense interception zones, and deep drag-reducing interception zones further improves interception efficiency and targeting. The introduction of a chain lifting device enables the automatic lifting and storage of intercepted debris into the waste storage trough, reducing the frequency and labor intensity of manual cleaning and improving overall operational efficiency.

[0013] This utility model's waste storage floating trough, through anchoring by a second chain and gravity anchor points, and the buoyancy provided by the first float for the interception fence, allows the entire device to flexibly adjust its angle and position according to changes in water level, maintaining a stable interception effect.

[0014] This invention, through the setting of a sorting zone, re-filters fine waste when the chain lifting device lifts the waste, reducing the amount of these fine wastes entering the waste storage trough, thereby effectively reducing the cleaning frequency.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the floating debris interception device for water diversion tunnels according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the barrier fence and chain lifting device.

[0019] Figure 3 This is a schematic diagram of the interception fence structure.

[0020] The attached diagram lists the components represented by each number as follows: 1-Interception fence, 2-Garbage storage floating trough, 3-Chain lifting device, 4-First chain, 5-First float, 6-Second chain, 7-Gravity anchor point, 11-Pass through slot, 12-Connecting support rod, 13-Single lug, 14-Dense rod group, 31-Drive shaft, 32-Driven shaft, 33-Sprocket, 34-Chain, 35-Drive motor, 36-Lifting rake teeth. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Specific Implementation Example 1: Please refer to Figure 1-3As shown, this utility model is a floating debris interception device for a water diversion tunnel, including an interception fence 1 and a debris storage floating trough 2. The interception fence 1 is hinged to the upper end of the debris storage floating trough 2 located upstream of the water flow at its downstream end. A chain lifting device 3 is installed on the interception fence 1 to lift the intercepted debris into the debris storage floating trough 2.

[0023] The interception barrier 1, located upstream, is connected to a row of first floats 5 via a first chain 4. These floats 5 provide the necessary buoyancy to the barrier 1, ensuring its lower end maintains an appropriate water depth for effective interception of floating debris. A second chain 6 is installed at the lower end of the debris storage trough 2, with gravity anchors 7 at their lower ends to anchor the entire device and prevent it from being swept away by the current. The debris storage trough 2 provides buoyancy to the overall debris interception device, while the first floats 5 provide buoyancy to the lower end of the barrier 1, maintaining the water depth at which the barrier 1 sinks. With the second chain 6 and gravity anchors 7 anchored, the entire floating debris interception device moves with changes in water level.

[0024] The interception fence 1 is a rectangular structure with vertical filtering and intercepting rods. A row of equally spaced passage slots 11 are opened at the top of the interception fence 1. These passage slots 11, together with the vertical filtering and intercepting rods on both sides, form a chain conveying channel, providing operating space for the chain lifting device 3. A row of connecting support rods 12 is vertically fixed to the top of the interception fence 1, and the connecting support rods 12 are staggered with the passage slots 11, enhancing the structural stability of the interception fence 1. The ends of the connecting support rods 12 are hinged to the waste storage floating trough 2 via hinge seats. A row of single lugs 13 is fixed to the bottom of the interception fence 1. The lower end of the first chain 4 is installed on the single lugs 13, achieving a reliable connection between the interception fence 1 and the first floating body 5.

[0025] Among them, a dense bar group 14 is installed between adjacent vertical filter interception bars between two adjacent passage slots 11. The dense bar group 14 includes densified horizontal bars vertically fixed on two adjacent vertical filter interception bars, and densified vertical bars vertically fixed between two densified horizontal bars. A row of dense bar groups 14 divides the interception fence 1 from top to bottom into a sorting area, a dense interception area, and a deep area drag reduction interception area.

[0026] The deep-zone drag-reducing interception zone is completely below the water surface during installation and use, reducing water resistance. The dense interception zone is located in the area where the main waste floats below the water surface, as well as the area where the main waste accumulates above the water surface. The dense interception zone increases the overall density of the interception bars, making it less likely for large rod-shaped waste to get stuck in the gaps when it hits the dense interception zone. Under the push of the water flow, the rod-shaped waste gradually flattens against the interception fence 1, and is then easily transported upwards to the waste storage floating tank 2 by the lifting action of the chain lifting device 3. The sorting zone is used to re-filter and discharge fine waste into the water below the interception fence 1 when the chain lifting device 3 lifts the waste upwards. These fine wastes will not pose a threat to the subsequent water diversion tunnel. After passing through the deep-zone drag-reducing interception zone, the amount of waste entering the waste storage floating tank 2 is reduced, effectively reducing the cleaning frequency of the waste storage floating tank 2.

[0027] The chain lifting device 3 includes a drive shaft 31, a driven shaft 32, sprockets 33, a chain 34, a drive motor 35, and lifting rake teeth 36. The drive motor 35 includes a motor and a reducer, and is highly waterproof with an external protective cover to reduce the possibility of water ingress. The drive shaft 31 is mounted on the upper end of the interception fence 1 via a bearing. The driven shaft 32 is mounted on the deep resistance-reducing interception zone of the interception fence 1 via a bearing. A sprocket 33 is installed on both the drive shaft 31 and the driven shaft 32 at a position in the chain conveying channel, and a chain 34 is installed on the upper and lower sprockets 33 in the chain conveying channel. A ring of evenly distributed lifting rake teeth 36 is installed on the chain 34 for grabbing and lifting intercepted debris. The drive motor 35 is installed on one side of the upper end of the interception fence 1 and is connected to one end of the drive shaft 31 to provide power to the entire chain lifting device 3.

[0028] Among them, the angle between the lifting rake tooth 36 and the conveying direction of the chain 34 is an acute angle, and the optimal angle range between the lifting rake tooth 36 and the conveying direction of the chain 34 is 45°-60°. This design makes the lifting rake tooth 36 more efficient and reliable in grabbing and lifting debris.

[0029] One specific application of this embodiment is as follows: During the actual operation of the water diversion tunnel, the floating debris interception device is deployed at a key location in the channel in front of the tunnel. As the water flows through, various debris floating on the water surface is effectively intercepted by the interception fence 1. The chain lifting device 3, driven by the drive motor 35, operates continuously, and the lifting rake teeth 36 grab the intercepted debris from the interception fence 1 and lift it into the waste storage floating tank 2. As debris accumulates, staff regularly clean the waste storage floating tank 2 to ensure the continuous and effective operation of the device. Furthermore, due to its reasonable design, stable structure, and ability to flexibly adjust to changes in water level, the device exhibits extremely high reliability and durability in practical applications.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for intercepting floating debris in a water diversion tunnel, characterized in that: Includes interception fences (1) and garbage storage troughs (2); The interception fence (1) is hinged at the downstream end of the water flow to the upper end of the garbage storage trough (2) located upstream of the water flow; A chain lifting device (3) is installed on the interception fence (1); The interception fence (1) is located at the upstream end of the water flow and is equipped with a row of first floats (5) by a row of first chains (4); A second chain (6) is installed at the lower end of the waste storage trough (2), and a gravity anchor (7) is installed at the lower end of the second chain (6).

2. The floating debris interception device for water diversion tunnels according to claim 1, characterized in that, The interception fence (1) is a rectangular structure with vertical filter interception rods; a row of equally spaced passage slots (11) are opened at the upper end of the interception fence (1); the passage slots (11) and the vertical filter interception rods on both sides form a chain conveying channel; a row of connecting support rods (12) is vertically fixed at the upper end of the interception fence (1), and the connecting support rods (12) and the passage slots (11) are staggered; the ends of the connecting support rods (12) are hinged to the garbage storage floating trough (2) through hinge seats; a row of single ears (13) is fixed at the lower end of the interception fence (1); the lower end of the first chain (4) is installed on the single ears (13).

3. The floating debris interception device for water diversion tunnels according to claim 2, characterized in that, A dense bar group (14) is installed between adjacent vertical filter interception bars between two adjacent slots (11); the dense bar group (14) includes a densified horizontal bar that is vertically fixed on two adjacent vertical filter interception bars, and a densified vertical bar that is vertically fixed between two densified horizontal bars; a row of the dense bar group (14) divides the interception fence (1) from top to bottom into a sorting area, a dense interception area, and a deep area resistance reduction interception area.

4. The floating debris interception device for water diversion tunnels according to claim 3, characterized in that, The chain lifting device (3) includes a drive shaft (31), a driven shaft (32), a sprocket (33), a chain (34), a drive motor (35), and lifting rake teeth (36). The drive shaft (31) is mounted on the upper end of the interception fence (1) via a bearing seat. The driven shaft (32) is mounted on the deep resistance reduction interception zone of the interception fence (1) via a bearing seat. A sprocket (33) is installed on both the drive shaft (31) and the driven shaft (32) at the position of the chain conveying channel, and the chain (34) is installed on the two sprockets (33) located above and below the chain conveying channel. A ring of evenly distributed lifting rake teeth (36) is installed on the chain (34). The drive motor (35) is installed on one side of the upper end of the interception fence (1), and the drive motor (35) is driven connected to one end of the drive shaft (31).

5. The floating debris interception device for water diversion tunnels according to claim 4, characterized in that, The angle between the lifting rake teeth (36) and the conveying direction of the chain (34) is an acute angle.

6. The floating debris interception device for water diversion tunnels according to claim 5, characterized in that, The angle between the lifting rake teeth (36) and the conveying direction of the chain (34) is in the range of 45°-60°.

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