Unpowered dredging equipment in river regulation

Abstract

The unpowered dredging equipment in river regulation comprises two symmetrically arranged water flow outlet arc-shaped plates, and the two water flow outlet arc-shaped plates are symmetrically arranged close to the river bank side; at least two water flow inlet steering plates are arranged in the direction right facing the water flow, a small-scale centripetal radian plate is arranged in the direction back to the water flow, and a water flow outlet end is arranged between the small-scale centripetal radian plate and the water flow outlet arc-shaped plate. The two symmetrically-arranged water flow outlet arc-shaped plates, the water flow inlet steering plate and the small-scale centripetal radian plate integrally define a ring shape, and the diameter of the ring shape needs to be matched with the width of the river bottom. According to the utility model, the water flow dynamics principle and the engineering design are utilized, and the sludge is automatically cleaned through the water flow of the riverway. By using the device, the manual cleaning cost and workload can be reduced, meanwhile, interference to the environment is reduced, the ecological environment of the river channel is protected, and the smoothness of the water channel is maintained.

Description

Technical Field

[0001] This utility model relates to a non-powered dredging device for river management. Background Technology

[0002] River silt is formed by the deposition of sediment carried by rivers in the riverbed. Over time, its accumulation can lead to shallower riverbeds, slower water flow, and even affect drainage and the river's ecological environment. Given the continuous flow of the river, silt removal becomes particularly important.

[0003] River dredging is an important part of water conservancy projects, generally involving dredging the entire river channel or specific sections, often using mechanical methods. However, situations arise requiring localized (point-based) dredging. Due to various limitations, conventional dredging methods are sometimes impractical, necessitating a detachable, pollution-free ecological dredging device. Ecological dredging is an important area of ​​environmental science, helping to improve water quality and protect the aquatic ecosystem. It requires completing silt removal work without carbonization or with reduced carbonization.

[0004] Traditional methods for sludge removal include manual cleaning, mechanical dredging, and chemical treatment. However, these methods suffer from problems such as low efficiency, high cost, and significant environmental impact. Specifically:

[0005] Mechanical dredging: This method uses large machinery such as excavators and bulldozers to remove silt, garbage, and other materials. While highly efficient, it requires a large amount of equipment and may damage the hard structure at the bottom of the silt.

[0006] Hydraulic flushing: This method uses the force of water flow (such as a high-pressure water jet) to wash away silt, garbage, and other materials. It is suitable for cases with relatively light silt contamination, but it is necessary to prevent the spread of pollutants during its use.

[0007] Manual dredging: This involves manually digging and removing silt and debris. It is a traditional method suitable for areas with small amounts of silt or where mechanical equipment cannot reach.

[0008] Chemical dredging: This method uses chemical agents to break down and soften the sludge, which is then pumped out using water pumps or other equipment. While this method can accelerate sludge decomposition and removal, the environmental and biological impacts of the chemicals must be carefully considered.

[0009] Biological dredging: This method utilizes biological resources such as microorganisms and aquatic plants to decompose and digest silt. It is environmentally friendly and pollution-free, and can improve the ecological environment, but it requires a certain amount of time and specific conditions to achieve the desired results.

[0010] Therefore, existing technical measures require power sources such as electricity, excavators, and chemical reagents, resulting in significant energy consumption. They are difficult to implement when energy is insufficient or when there is a lack of working space. Utility Model Content

[0011] The technical problem to be solved by the utility model is: how to solve the problems of environmental damage and high work efficiency during temporary dredging, and to provide a non-powered dredging device for river management.

[0012] The specific technical solution of this utility model is as follows:

[0013] The non-powered dredging equipment used in river management includes two symmetrically arranged arc-shaped water outlet plates, which are symmetrically arranged near the riverbank. At least two water inlet deflector plates are arranged facing the water flow direction, and a small-scale centripetal arc plate is arranged facing away from the water flow direction. The water outlet end is located between the small-scale centripetal arc plate and the water outlet arc plate. The two symmetrically arranged water outlet arc plates, water inlet deflector plates, and small-scale centripetal arc plates form a ring, and the diameter of the ring should match the width of the riverbed.

[0014] The water outlet arc plate and the water inlet turning plate, the water outlet arc plate and the small-scale centripetal arc plate, and adjacent water inlet turning plates are all connected by connecting strips.

[0015] There are four water inlet deflector plates, all of which are inclined plates arranged in parallel.

[0016] The angle of the inclined plate of the water inlet deflector is 30°. 0 ~60 0 .

[0017] A supporting beam connects the two arc-shaped plates at the water outlets.

[0018] The bottoms of the water inlet deflector plate, the water outlet arc plate, and the small-scale centripetal arc plate are all pointed.

[0019] The beneficial effects of this invention are as follows: This invention utilizes the principles of hydrodynamics and engineering design to achieve automatic silt removal through the flow of water in the river. Using this device reduces the cost and workload of manual cleaning, while also minimizing environmental impact, thus helping to protect the ecological environment of the river and maintain the smooth flow of waterways. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention;

[0021] Figure 2 This is a perspective view of the present utility model;

[0022] Figure 3 The diagram shows the changes in the flow field.

[0023] Figure 4 This is a graph showing the change in flow velocity. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1 , Figure 2 As shown, the non-powered dredging equipment used in river management includes two symmetrically arranged arc-shaped water outlet plates 3, which are symmetrically arranged near the riverbank. At least two water inlet deflector plates 1 are arranged facing the water flow direction, and a small-scale centripetal arc plate 6 is arranged facing away from the water flow direction. The water outlet end 4 is located between the small-scale centripetal arc plate 6 and the water outlet arc plate 3. The water outlet arc plate 3 and the water inlet deflector plate 1, the water outlet arc plate 3 and the small-scale centripetal arc plate 6, and adjacent water inlet deflector plates 1 are all connected by connecting strips 2.

[0027] It should be noted that the two symmetrically arranged arc-shaped water outlet plates 3, water inlet turning plates 1, and small-scale centripetal arc plates 6 form a ring, and the diameter of the ring should match the width of the riverbed.

[0028] Furthermore, the water inlet deflector plate 1 faces the direction of water flow. The diagram shows four water inlet deflector plates 1, each an inclined plate arranged in parallel. The four inclined plates are fixedly connected by connecting strips 2. Each inclined plate has a pointed bottom, allowing it to gradually insert downwards under its own weight. As the water flows past the water inlet deflector plate 1, the flow velocity and direction of the river change. The angle of the inclined plate 1 can be adjusted according to the water flow, for example, from 30°... 0 Adjusted to 60 0 .

[0029] Furthermore, the arc-shaped water outlet plate 3 is located near the riverbank, adjacent to the riverbank slope 7. The two arc-shaped water outlet plates 3 are arranged symmetrically, and both are centripetal arc plates. The optimal implementation method is to have the same arc center, which better accelerates the formation of the "vortex". The vertical shape of the arc-shaped water outlet plate 3 is pointed, and it gradually inserts downwards by its own weight.

[0030] Even better, a support beam 5 connects the two arc-shaped plates 3 at the water outlets to maintain stability.

[0031] Furthermore, the small-scale centripetal curved plate 6 faces away from the direction of water flow, and its two ends are water outlets, which are the energy dissipation points of the "vortex". The vertical shape of the small-scale centripetal curved plate 6 is also pointed, and it gradually inserts downward by its own weight.

[0032] The working principle of this utility model is as follows:

[0033] This utility model device requires no power source, can be reused repeatedly, and can be put into use after simple assembly. It is suitable for situations where there is a lack of power sources such as electricity, where it does not affect water quality (no chemical reagents are used), and where traditional dredging methods are difficult to operate. It uses a ring-shaped "vortex generator" to turn a gentle water flow into a ring-shaped vortex. After passing through the "vortex generator," the water flow velocity increases and the flow direction changes, forming an "artificial vortex." The water's own flow gradually cleans away local impurities and silt from the river channel.

[0034] During the simulation, a two-dimensional hydrodynamic model (mike21FM) was used for numerical analysis. The region was divided using a triangular mesh to calculate the flow velocity and direction at different locations along the river channel. (The text then repeats itself, so the translation stops.) Figure 3 , Figure 4 Analysis shows that when water flows through the equipment, its flow field and velocity change significantly. The disturbance of the water flow forms a "vortex" under the guidance of the device, which can clean up local impurities in the river channel.

[0035] The beneficial effects of this utility model are as follows:

[0036] 1. Environmentally friendly and energy-saving

[0037] The core advantage of non-powered dredging devices lies in their direct operation without relying on external energy sources. They achieve dredging and transport of silt through natural conditions such as water flow, water level differences, or terrain features. This non-mechanical working method not only avoids the carbon emissions and energy consumption caused by the use of fuel oil and electricity in traditional dredging methods, but also significantly reduces noise pollution and ecological disturbance during operation, making it an important way to achieve green dredging and energy conservation and emission reduction.

[0038] 2. Economic benefits

[0039] From an economic perspective, non-powered dredging devices offer significant cost advantages. Because they require no power source, their maintenance and operating costs are low. Compared to traditional dredging methods (such as excavators and dredging vessels) which require continuous investment in fuel and maintenance, non-powered dredging devices can significantly reduce costs over the long term. Furthermore, their flexible installation and simple operation reduce labor input and improve the overall efficiency of the project.

[0040] 3. Application Prospects

[0041] Non-powered dredging devices are suitable for various aquatic environments, including rivers, canals, lakes, reservoirs, and ponds. Their flexible design allows for customization based on the terrain, water flow, and siltation conditions of different water bodies, enabling the technology to play a positive role in dredging and management across various water types. They are particularly valuable in remote areas with poor transportation or limited energy supply.

[0042] 4. Technological Innovation

[0043] By incorporating the latest advancements in intelligent control, materials science, and hydrodynamics, non-powered dredging devices have made significant progress in improving dredging efficiency, enhancing stability, and reducing ecological impact. In the future, with continued technological breakthroughs, non-powered dredging devices will become even more intelligent and efficient, providing more reliable solutions for water environment management.

[0044] 5. Eco-friendly

[0045] Non-powered dredging devices minimize damage to aquatic ecosystems during the dredging process. They avoid the direct impact of large machinery on benthic organisms and water quality, reduce the use of chemical agents, and protect the integrity of the aquatic ecosystem. Furthermore, through proper planning and operation, they can enhance the self-purification capacity of water bodies, providing a more suitable living environment for aquatic life and embodying the concept of harmonious coexistence between humans and nature.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A non-powered dredging device for river management, characterized in that: It includes two symmetrically arranged arc-shaped water outlet plates (3), which are symmetrically arranged near the riverbank; at least two water inlet turning plates (1) are arranged facing the water flow direction, and a small-scale centripetal arc plate (6) is arranged facing away from the water flow direction. The water outlet end (4) is between the small-scale centripetal arc plate (6) and the water outlet arc-shaped plate (3); the two symmetrically arranged water outlet arc-shaped plates (3), the water inlet turning plates (1) and the small-scale centripetal arc plate (6) are arranged in a ring, and the diameter of the ring should match the width of the riverbed.

2. The non-powered dredging equipment for river management according to claim 1, characterized in that: The water outlet arc plate (3) and the water inlet turning plate (1), the water outlet arc plate (3) and the small-scale centripetal arc plate (6), and the adjacent water inlet turning plates (1) are all connected by a connecting strip (2).

3. The non-powered dredging equipment for river management according to claim 1, characterized in that: There are four water inlet deflector plates (1). All four plates are inclined and arranged in parallel.

4. The non-powered dredging equipment for river management according to claim 3, characterized in that: The angle of the inclined plate of the water inlet deflector plate (1) is 30°. 0 ~60 0 .

5. The non-powered dredging equipment for river management according to claim 1, characterized in that: A support beam (5) connects the two arc-shaped plates (3) at the water outlets.

6. The non-powered dredging equipment for river management according to claim 1, characterized in that: The bottoms of the water inlet turning plate (1), the water outlet arc plate (3), and the small-scale centripetal arc plate (6) are all pointed.

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