A high-efficiency floating object intercepting dam and a floating object intercepting method for river and reservoir

Abstract

The application discloses a kind of high efficiency of river and reservoir floating object intercepting of intercepting, and intercepting method, it is related to river and reservoir floating object cleaning technical field.Device includes intercepting floating row, underwater counterweight system and movable intercepting net: intercepting floating row is made of first steel wire rope series connection high-strength polyethylene float, lower part is connected with high-density PE net and stainless steel chain;Underwater counterweight system is combined with second steel wire rope using concrete anchor block, provides stable anchoring force;Movable intercepting net is detachably connected with intercepting floating row by U-shaped buckle, can be adjusted according to the direction of floating object to meet the flow direction.Method includes floating row arrangement, anchoring configuration, movable intercepting net directional interception and dynamic maintenance steps, realize quick repair and traffic management by modular unit design.The application solves the problem that traditional intercepting floating row floating object direction adaptability is poor, metal counterweight is easy to be corroded, improves the interception efficiency and durability, and is suitable for complex water area long-term interception operation.

Description

Technical Field

[0001] This invention relates to the field of river and lake surface floating object interception technology, specifically a highly efficient drift interception and drift interception method for river and lake floating objects against the current. Background Technology

[0002] Floating debris barriers, as common water surface debris interception facilities, are widely installed at the intake of hydropower stations, in natural rivers and lakes to intercept and clear various floating objects, ensuring water quality safety, stable operation of water facilities, and environmental landscape.

[0003] Currently, traditional barrier floats primarily rely on buoys for buoyancy, linked together by ropes. To improve their stability in wind, waves, and currents, counterweights are typically suspended below the buoys. However, this conventional structure has significant drawbacks: First, the counterweights are often made of metal (such as cast iron), which is prone to electrochemical corrosion when submerged in water for extended periods. This not only leads to counterweight failure and structural instability but also necessitates frequent replacements, increasing the overall life-cycle usage and maintenance costs. Second, and more significantly, the existing barrier float structures are fixed or unidirectional, making them ill-suited to the complex conditions of variable currents and unpredictable debris flow during flood season. When debris accumulates in large quantities in one direction, it can easily "dive" from the bottom of the barrier float or circumvent the flow, resulting in a significant decrease in overall interception efficiency and posing a threat to sensitive downstream targets. Summary of the Invention

[0004] In view of the problems of low floating debris interception efficiency and poor material durability of existing floating debris interception rafts applicable to rivers, lakes and reservoirs, this invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides a highly efficient floating debris interception system for river and reservoirs, including a floating debris interception system, an underwater counterweight system, and a movable net.

[0006] The main body of the buoy is composed of a first steel wire rope connected to a series of high-strength polyethylene floats, and the lower part is connected to a first high-density PE net. A first stainless steel chain of the same length as the first steel wire rope is installed at the bottom of the first high-density PE net to guide the first high-density PE net to be distributed vertically.

[0007] The underwater counterweight system includes a second steel wire rope and a first concrete anchor block. One end of the second steel wire rope is connected to the buoyancy bar and the other end is connected to the first concrete anchor block.

[0008] The movable barrier net is detachably connected to the floating barrier raft via movable buckles. The movable barrier net includes a second high-density PE net, multiple foam buoys connected in series at the top of the second high-density PE net, a first foam float located at the tail end of the foam buoys, and a second concrete anchor block connected to and located below the first foam float.

[0009] Furthermore, the diameter of the first wire rope is 30 mm, and the diameter of the second wire rope is 12 mm.

[0010] Furthermore, the buoy is arranged in 60-meter units, and each unit is connected by a U-shaped buckle, with the connection protected by a second foam buoy package.

[0011] Furthermore, the high-strength polyethylene pontoon is filled with foam, the outer shell is made of high-strength polyethylene with a wall thickness of 5mm, and the pontoon size is 500mm or 600mm.

[0012] Furthermore, the length of the second steel wire rope is consistent with the maximum water depth of the area where the rafting is located, and the spacing between the ropes is 10 to 20 meters, which is adjusted according to the underwater topography.

[0013] Furthermore, the weight of the first concrete anchor block is 80~100kg.

[0014] Furthermore, the second high-density PE net of the movable barrier has a vertical depth of 2 meters, and the bottom is connected to a second stainless steel chain. The connection position with the floating barrier can be adjusted by disassembling the movable buckle.

[0015] Furthermore, the lengths of the first and second high-density PE meshes are 2 meters.

[0016] A method for intercepting floating debris in a river or reservoir against the flow of the current, using the aforementioned debris-blocking raft, includes the following steps:

[0017] S1. Floating barrier deployment: Connect the 60-meter units of the floating barrier with U-shaped buckles, span the cross section of the river or reservoir, so that the first high-density PE net is vertically inserted into the water to form a surface and suspended floating object interception line.

[0018] S2. Anchoring system configuration: Based on the maximum water depth and topography, a second steel wire rope and a first concrete anchor block are laid at intervals of 10 to 20 meters below the floating raft to keep the floating raft in a stable position.

[0019] S3. Directional interception with movable net: The movable net is connected to the upstream side of the floating debris discharge chute by movable buckles. The placement of the net is adjusted according to the drift direction of the floating debris, so that the second concrete anchor block at the end of the movable net is fixed in the direction of the floating debris's origin.

[0020] S4. Dynamic adjustment and maintenance: Adjust the position of the movable net by removing the movable buckles in real time according to the direction of the floating objects; when it is necessary to repair or clear the passage of floating vessels, remove the movable buckles of the corresponding floating unit to achieve partial separation of the floating unit.

[0021] Furthermore, in step S3, the adjustable angle range of the movable barrier net is 0~90°, and after adjustment, it is re-locked and fixed to the floating barrier raft through the movable buckle.

[0022] The beneficial effects of this invention are:

[0023] (1) The present invention connects the floating barrier and the movable barrier net with a detachable U-shaped buckle, so that the movable barrier net can quickly adjust its orientation to meet the current according to the direction of the main source of the water flow and floating objects. This design fundamentally solves the problem of side flow bypass and interception failure caused by the variable direction of floating objects in traditional fixed floating barriers, and is especially suitable for flood season conditions with complex water flow directions.

[0024] (2) The present invention lays out an anchoring system consisting of steel wire ropes and concrete anchor blocks according to the water depth and underwater topography, which ensures the structural stability of the floating raft under the impact of water flow. At the same time, the use of concrete anchor blocks to replace the traditional iron counterweights fundamentally avoids the defects of metal materials being easily corroded by long-term immersion in water, improves the corrosion resistance and service life of the facility, and reduces the frequency of maintenance and replacement costs.

[0025] (3) The present invention designs the floating raft and the movable net as a 60-meter floating raft unit. Local inspection and replacement of parts can be achieved by disassembling the U-shaped buckle, and maintenance work does not require disassembly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a detailed structural diagram of the underwater high-density PE mesh of the present invention;

[0028] Figure 3 This is a detailed structural diagram showing the connection between the main body of the floating barrier and the movable barrier net of the present invention;

[0029] Figure 4 This is a detailed structural diagram of the interior of the high-strength polyethylene pontoon of the present invention;

[0030] Figure 5 Detailed structural diagram of the connection between the main body of the floating barrier and the movable barrier net of the present invention.

[0031] In the diagram: 1. Floating barrier; 2. U-shaped buckle; 3. First steel wire rope; 4. High-strength polyethylene buoy; 5. Foam filling; 6-1. First high-density PE net; 6-2. Second high-density PE net; 7-1. First stainless steel chain; 7-2. Second stainless steel chain; 8-1. First concrete anchor block; 8-2. Second concrete anchor block; 9. Movable buckle; 10. Foam buoy; 11. Second steel wire rope; 12-1. First foam float; 12-2. Second foam float; 13. Movable barrier net. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0033] Example 1

[0034] Reference Figures 1-4 This embodiment describes a highly efficient drift interceptor for intercepting floating debris in rivers and reservoirs against the current, comprising a drift interceptor 1 and a movable net 13. The drift interceptor 1 is mainly composed of high-strength polyethylene buoys 4 and a first steel wire rope 3, while the movable net 13 is composed of foam buoys 10, a first high-density PE net 6-1, and a first stainless steel chain 7-1. The drift interceptor 1 primarily intercepts floating debris in the direction of the main water flow. When the water flow direction is complex, the movable net 13 changes its interception position according to the specific drift direction of the floating debris, thus achieving directional interception.

[0035] refer to Figure 1 As shown, the floating debris interception unit 1 is divided into 60-meter units, and each unit is connected by a movable buckle 9. The floating debris interception unit 1 can be inspected and maintained by disassembling and assembling the movable buckles, which also facilitates the cleaning and salvage of floating debris by cleaning vessels.

[0036] refer to Figure 1 As shown, the floating barrier 1 is equipped with a first concrete anchor block 8-1 every 20 meters underwater. The spacing can be adjusted according to the underwater terrain to ensure that the floating barrier 1 maintains a stable direction and attitude and prevents it from tilting and overturning on the water surface.

[0037] The main body of the floating barrier 1 is composed of a first steel wire rope 3 connected in series with high-strength polyethylene buoys 4. The high-strength polyethylene buoys 4 are filled with foam 5 to prevent water from entering and sinking after being punctured by some floating objects, thus ensuring the safety of the floating barrier 1.

[0038] Each of the drift-blocking units of the aforementioned drift-blocking float 1 is equipped with a first foam float 12-1 on both sides to mark the endpoints of each drift-blocking unit, and the first foam float 12-1 is arranged according to... Figure 1 Arranged in a certain way.

[0039] The aforementioned floating barrier 1 is equipped with a first high-density PE net 6-1 with a depth of 2 meters underwater. When the amount of floating objects to be intercepted is large, the first high-density PE net 6-1 is used to intercept the floating objects and prevent them from sinking and overturning the floating barrier 1. The first high-density PE net 6-1 is connected to a first stainless steel chain 7-1, which increases the stability of the first high-density PE net 6-1 and at the same time keeps the floating barrier 1 in a stable direction and attitude, preventing it from rotating on the water surface.

[0040] Each unit of the floating barrier 1 is equipped with two movable nets 13, and the movable nets 13 and the floating barrier 1 are fixed and connected by movable buckles 9.

[0041] The main body of the movable barrier net 13 is made of foam buoys 10. Compared with high-strength polyethylene buoys 4, foam buoys 10 have better mobility, making it easier to flexibly adjust the overall position of the movable barrier net 13; at the same time, their cost is lower, which helps with later maintenance and replacement work.

[0042] The movable barrier net 13 is equipped with a second high-density PE net 6-2 suspended 2 meters deep underwater. This second high-density PE net 6-2 is mainly used to deal with large floating objects and can effectively prevent them from diving through. To enhance overall stability, a second stainless steel chain 7-2 is connected to the bottom of the second high-density PE net 6-2 as a counterweight. This configuration ensures that the movable barrier net 13 maintains a stable direction and attitude underwater and effectively inhibits its rotation on the water surface.

[0043] The movable barrier net 13 is configured to work in conjunction with the floating debris interception raft 1 to intercept floating objects. Given the complex and variable drift directions of floating objects in rivers, lakes, and reservoirs, operators are allowed to disassemble the movable clips 9 on the movable barrier net 13 and quickly transfer it to a more suitable position on the floating debris interception raft 1. This flexible repositioning mechanism enables targeted blocking of the main directions of floating objects, thereby avoiding overflow and leakage caused by excessive interception at a single location, significantly improving the overall interception effect.

[0044] Reference Figures 1-5 Based on the main source direction of floating debris in the river or reservoir, two movable barrier nets 13 are connected to the preset positions of the floating debris blocking raft 1 via movable clips 9 to form an initial interception line. The movable barrier nets 13 should be deployed facing the main current or the main source of floating debris to achieve initial interception.

[0045] The system monitors the type, accumulation, and drift direction of floating objects within the interception area in real time. When a change in the direction of the floating object's origin is detected, or when complex conditions such as multi-directional drift occur, it determines whether the deployment position of the movable barrier net 13 needs to be adjusted.

[0046] When the amount of floating debris in a certain area is too large, posing a risk of overflowing from the main drain or submerging, the movable net 13 can be completely disassembled, and one end can be quickly connected to the towing device of the cleanup vessel via the movable buckle 9. Subsequently, the cleanup vessel tows the movable net 13 to conduct mobile, directional cleanup operations in the designated waters with high concentrations of floating debris, achieving efficient and concentrated retrieval of the accumulated floating debris.

[0047] Furthermore, to expand the scope of a single mobile cleanup operation, both movable nets 13 can be completely disassembled and connected end to end using movable buckles 9 to form an extended interception unit. This extended unit can be towed by a cleanup vessel for sweeping cleanup, or it can be temporarily anchored to a specific location via concrete anchor blocks at its ends to form a concentrated interception line for enhanced interception and cleanup of floating debris accumulation areas.

[0048] After the cleanup vessel completes the partial cleanup, the movable barrier net 13 is reconnected to the floating barrier 1, restoring its function as a fixed interception facility.

[0049] Example 2

[0050] A method for intercepting floating debris in a river or reservoir against the current, utilizing the debris-blocking raft described in the above embodiment, includes the following steps:

[0051] S1, Floating Barrier Layout

[0052] The required number of buoy-blocking units is determined based on the width of the river or reservoir interception section. Each buoy-blocking unit is 60 meters long and consists of high-strength polyethylene buoys 4 connected in series by a first steel wire rope 3. U-shaped buckles 2 are used to connect each buoy-blocking unit sequentially. The connection points are protected with second foam floats 12-2 to prevent wear on the buckles and improve visibility.

[0053] The assembled buoy 1 is laid across the river or reservoir cross section. A towing vessel is used to assist in positioning to ensure that it is basically perpendicular to the direction of water flow. During the deployment process, a total station or GPS positioning system is used to mark the coordinates of the two ends and key points in the middle of the buoy to ensure that its deployment position meets the design requirements.

[0054] Furthermore, a first high-density PE net 6-1 is connected to the lower part of the floating barrier 1. The net is 2 meters deep. A first stainless steel chain 7-1 of the same length as the first steel wire rope 3 is installed at the bottom to ensure that the net body maintains a vertical posture in the water and prevents floating objects from diving through.

[0055] S2, Anchoring System Configuration

[0056] Before the deployment of the floating barrier 1, underwater topographic measurements were taken of the interception section to determine the maximum water depth and riverbed undulations. An anchoring point was set every 10 to 20 meters along the length of the floating barrier 1, with the specific spacing adjusted according to the underwater topographic undulations.

[0057] Furthermore, each anchoring point is equipped with a second steel wire rope 11, the length of which is consistent with the maximum water depth at that point. One end is connected to the floating barrier 1 via a shackle, and the other end is connected to the first concrete anchor block 8-1.

[0058] Furthermore, the first concrete anchor block 8-1 weighs 80~100kg, is a prefabricated component, and has a smooth surface to reduce the impact of riverbed scouring. The anchor block is slowly lowered to the riverbed using a crane or special anchoring equipment to ensure that it is stably embedded or laid flat on the riverbed surface.

[0059] Furthermore, after all anchor blocks are installed, the key anchor points are tested using a tensile testing instrument to ensure that their anchoring force meets the design requirements, which are usually not less than 5kN. At the same time, the attitude of the floating barrier 1 under the action of water flow is observed, and the anchor block position is adjusted or the counterweight is added if necessary.

[0060] S3, Targeted Interception by Mobile Netting

[0061] Based on the initial direction of the main source of floating debris, determine the initial deployment position of the movable barrier net 13. It is usually deployed upstream of the floating barrier 1 to form a "V" shaped interception array. Use the movable buckle 9 to connect the movable barrier net 13 to the floating barrier 1 to ensure a firm connection.

[0062] Furthermore, the movable barrier net 13 is composed of a second high-density PE net 6-2, foam buoys 10, a first foam float 12-1 and a second stainless steel chain 7-2. The net is 2 meters deep and is equipped with a second concrete anchor block 8-2 at the bottom for stabilizing its posture.

[0063] Furthermore, the foam buoy 10 provides buoyancy to facilitate position adjustment, and the foam float 12 is used for marking and cushioning.

[0064] Furthermore, when the direction of the floating object changes, the movable buckle 9 is disassembled, the movable barrier 13 is moved to the new upstream position, the angle is adjusted to a range of 0~90°, and the U-shaped buckle is re-locked after adjustment to ensure that there is no looseness between the movable barrier and the main drain, and to avoid displacement due to water flow impact.

[0065] S4. Dynamic Adjustment and Maintenance

[0066] Based on the accumulation of floating debris, changes in water flow direction, and the status of the drift barrier, if excessive floating debris is found on one side or if there is a phenomenon of drifting around the current, the adjustment procedure for the position of the movable barrier net should be initiated immediately.

[0067] Furthermore, both the floating barrier 1 and the movable barrier net 13 adopt a 60-meter modular design. When any unit is damaged or needs to be cleaned, it can be removed for inspection and maintenance simply by disassembling the U-shaped buckles on both sides of the unit. Cleaning vessels can enter the upstream and downstream of the floating barrier through the disassembled gap to collect floating objects or maintain the facilities.

[0068] Furthermore, a comprehensive inspection is conducted monthly on the floating barrier 1 and the movable barrier net 13, including checking whether the first high-density PE net 6-1 and the second high-density PE net 6-2 are damaged or tangled, whether the first stainless steel chain 7-1 and the second stainless steel chain 7-2 are rusted or deformed, whether the U-shaped buckle is loose or corroded, and whether the foam buoy 10 and the floats (the first foam float 12-1 and the second foam float 12-2) are aged and leaking water; every six months, the concrete anchor blocks are lifted for inspection, attachments are cleaned, and their stability is assessed.

[0069] When the floating debris intercepted by the movable net 13 reaches the predetermined capacity, the cleanup operation is initiated. Taking advantage of its quick disassembly feature, the fully loaded movable net 13 is temporarily removed from the water surface for thorough cleaning, and then reinstalled on the floating debris raft 1 for continued use, or transported to a designated area for centralized disposal.

[0070] After the flood season ends or the interception task is completed, the movable buckles 9 are disassembled in sequence to separate the movable barrier net 13 from the floating raft 1; the movable barrier net 13 is cleaned, inspected, dried and sorted for future reuse.

[0071] This invention has the following features and effects:

[0072] 1. Improved dynamic interception adaptability

[0073] The movable barrier net and the floating barrier can be detachably connected by a U-shaped buckle. The orientation of the barrier can be quickly adjusted according to the direction of the water flow and the source of the floating objects (0~90° range). This fundamentally solves the problem of side flow bypass and interception failure caused by the variable direction of the floating objects in traditional fixed barriers. It is especially suitable for complex working conditions during the flood season.

[0074] 2. Optimization of durability and maintenance costs

[0075] Concrete anchor blocks (80~100kg) are used to replace traditional metal counterweights, avoiding the risk of long-term water immersion and corrosion and extending the service life of the anchoring system. Both the floating raft and the movable net adopt a 60-meter modular unit design. Partial maintenance or clearing of floating vessels can be completed by disassembling the U-shaped buckle. Maintenance does not require complete dismantling, reducing the overall cost.

[0076] 3. Enhanced interception efficiency and structural stability

[0077] The bottom of the floating raft is connected to a 2-meter-deep high-density PE net, and the bottom is equipped with stainless steel chains to guide the vertical distribution, effectively preventing floating objects from sinking and passing through. The underwater counterweight system is deployed according to the water depth and terrain (at intervals of 10 to 20 meters) to ensure the stability of the raft under the impact of water flow, significantly improving the interception reliability in complex waters.

[0078] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency floating debris intercepting and removing dam for river and reservoir, characterized in that, Including a floating barrier (1), an underwater counterweight system and a movable barrier net (13); The main body of the buoy (1) is composed of a first steel wire rope (3) connected in series with a high-strength polyethylene float (4), and the lower part is connected to a first high-density PE net (6-1). The bottom of the first high-density PE net (6-1) is equipped with a first stainless steel chain (7-1) of the same length as the first steel wire rope (3) to guide the first high-density PE net (6-1) to be distributed vertically. The underwater counterweight system includes a second steel wire rope (11) and a first concrete anchor block (8-1). One end of the second steel wire rope (11) is connected to the floatation bar (1), and the other end is connected to the first concrete anchor block (8-1). The movable barrier net (13) is detachably connected to the barrier float (1) via a movable buckle (9). The movable barrier net (13) includes a second high-density PE net (6-2), a plurality of foam buoys (10) connected in series at the top of the second high-density PE net (6-2), a first foam float (12-1) located at the tail end of the foam buoy (10), and a second concrete anchor block (8-2) connected to the first foam float (12-1) and located below the first foam float (12-1). Each of the float-blocking units of the float-blocking raft (1) is connected by U-shaped buckles (2) and spans the cross section of the river or reservoir. The movable net (13) is connected to the upstream side of the floating block (1) by the movable buckle (9). The placement of the movable net (13) is adjusted according to the drift direction of the floating object, so that the second concrete anchor block (8-2) at the end of the movable net (13) is fixed in the direction of the floating object source. The adjustable angle range of the movable barrier (13) is 0~90°.

2. The high efficiency debris boom of claim 1, wherein, The diameter of the first wire rope (3) is 30 mm, and the diameter of the second wire rope (11) is 12 mm.

3. The high efficiency debris boom of claim 1, wherein, The buoy (1) is divided into 60-meter units, and the connection is protected by a second foam buoy (12-2).

4. The high efficiency debris boom of claim 1, wherein, The high-strength polyethylene pontoon (4) is filled with foam (5), the outer shell is made of high-strength polyethylene, the wall thickness is 5mm, and the pontoon size is 500mm or 600mm.

5. The high efficiency debris boom of claim 1, wherein, The length of the second steel wire rope (11) is consistent with the maximum water depth of the area where the floating barrier (1) is located, and the spacing between the ropes is 10 to 20 meters, which is adjusted according to the underwater topography.

6. The high-efficiency drift-blocking dredger according to claim 1, characterized in that, The weight of the first concrete anchor block (8-1) is 80~100kg.

7. The high-efficiency drift-blocking dredger according to claim 1, characterized in that, The second high-density PE net (6-2) of the movable barrier net (13) has a vertical depth of 2 meters, and the bottom is connected to the second stainless steel chain (7-2). The connection position with the floating barrier (1) can be adjusted by disassembling the movable buckle (9).

8. The high-efficiency drift-blocking dredger according to claim 1, characterized in that, The lengths of the first high-density PE mesh (6-1) and the second high-density PE mesh (6-2) are 2 meters.

9. A method for intercepting floating debris in a river or reservoir against the flow of the current, characterized in that, The method, employing any one of claims 1-8, comprises the following steps: S1. Floating barrier deployment: Connect each 60-meter unit of the floating barrier (1) with U-shaped buckles (2) to span the cross section of the river or reservoir, so that the first high-density PE net (6-1) enters the water vertically to form a surface and suspended floating object interception line. S2. Anchoring system configuration: Based on the maximum water depth and topography of the water area, a second steel wire rope (11) and a first concrete anchor block (8-1) are laid at intervals of 10-20 meters below the floating barrier (1) to keep the floating barrier (1) in a stable position. S3, directional interception of movable net: the movable net (13) is connected to the upstream side of the floating block (1) by the movable buckle (9), and the placement position of the movable net (13) is adjusted according to the drift direction of the floating object, so that the second concrete anchor block (8-2) at the end of the movable net (13) is fixed in the direction of the floating object source; S4. Dynamic adjustment and maintenance: Adjust the position of the movable net (13) by disassembling the movable buckle (9) according to the direction of the floating object in real time; when it is necessary to repair or clear the passage of floating vessels, disassemble the movable buckle (9) of the corresponding floating unit to achieve partial separation of the floating unit.

10. The method for intercepting drifts according to claim 9, characterized in that, In step S3, the adjustable angle range of the movable barrier net (13) is 0~90°, and after adjustment, it is re-locked and fixed to the floating barrier (1) by the movable buckle (9).

Images