Retaining dam with silt separation function

Abstract

The retaining dam with the sediment separation function comprises a supporting structure arranged on the upstream face of a dam body, a protection structure and a sediment cleaning mechanism, the supporting structure comprises a supporting column arranged on the dam body and a first sediment conveying mechanism, and the sediment cleaning mechanism comprises a third sediment conveying mechanism and a second sediment conveying mechanism; a discharge port of the second silt conveying mechanism and a discharge port of the third silt conveying mechanism are respectively connected with a feed port of the first silt conveying mechanism; and a discharge port of the first silt conveying mechanism is connected with the top surface of the dam body. The protection assembly is installed on the upstream side of the gate, the upstream side of the gate can be protected through the protection assembly, silt on the upstream side of the protection assembly is conveyed into the vertical first silt conveying mechanism through the second silt conveying mechanism and the third silt conveying mechanism which are horizontally arranged, and the silt is conveyed out through the first silt conveying mechanism; the silt is timely cleaned, the silt is prevented from being accumulated below the upstream side of the dam body, and normal work of the gate is ensured.

Description

Technical Field

[0001] The present invention relates to the field of silt cleaning of water conservancy and hydropower dams, and in particular to a water conservancy and hydropower dam with a silt separation function. Background Art

[0002] A dam is a hydraulic structure used to intercept water flow, raise water levels, or regulate flow. It is widely used in irrigation, hydropower generation, flood control, and water supply. During operation, a large amount of sediment often accumulates below the water-facing surface of the dam, leading to sediment accumulation at the dam gates. If not cleaned promptly, this can clog the gates, preventing them from draining water and rendering them ineffective. Therefore, clearing sediment from the water-facing surface of the dam is crucial to the proper functioning of the gates and requires regular cleaning during operation. Summary of the Invention

[0003] In view of this, the present invention proposes a water retaining dam with sediment separation function.

[0004] To achieve the above object, the present invention adopts the following technical solutions: The water retaining dam with sediment separation function of the present invention comprises a dam body and a gate provided on the dam body, and further comprises a support structure provided on the water-facing surface of the dam body, a protective structure provided on the support structure, and a sediment cleaning mechanism, wherein the support structure comprises a support column provided at one end of the dam body and a first sediment conveying mechanism provided at the other end of the dam body, wherein the first sediment conveying mechanism and the support column are arranged vertically relative to each other; The protective structure includes a crossbeam arranged on the top of the first sediment conveying mechanism and the support column, a protective component for protecting the gate, and a lifting power source arranged on the crossbeam; wherein, the upper parts of the support column and the first sediment conveying mechanism are provided with chute relative to each other, the two ends of the protective component are clamped in the chute, and the lifting power source drives the protective component to rise and fall along the chute; The sediment cleaning mechanism includes a third sediment conveying mechanism horizontally arranged below the protective assembly and a second sediment conveying mechanism horizontally arranged below the third sediment conveying mechanism, wherein the discharge port of the second sediment conveying mechanism and the discharge port of the third sediment conveying mechanism are respectively connected to the feed port of the first sediment conveying mechanism; The first sediment conveying mechanism, the second sediment conveying mechanism and the third sediment conveying mechanism are all auger conveyors. The discharge port of the first sediment conveying mechanism is connected to the top surface of the dam body, the feed port of the third sediment conveying mechanism faces the water direction, and the feed port of the second sediment conveying mechanism faces the lower part of the gate.

[0005] The beneficial effect is: the present invention installs a protective component on the water-facing side of the gate, uses the protective component to protect the water-facing side of the gate, and then uses the horizontally arranged second sediment conveying mechanism and the third sediment conveying mechanism to convey the sediment on the water-facing side of the protective component to the vertical first sediment conveying mechanism, and uses the first sediment conveying mechanism to convey the sediment out, effectively avoiding the accumulation of sediment under the water-facing side of the dam body and ensuring normal drainage of the gate.

[0006] Preferably, the protection assembly includes a protection plate for protecting the gate and sliders disposed on both sides of the protection plate, the power output end of the lifting power source is connected to the protection plate, and the sliders are inserted into the chute. In the water blocking state, the lifting power source drives the protection plate to descend to the corresponding position of the gate to protect the gate.

[0007] More preferably, each of the sliders is symmetrically provided with cleaning blocks with cleaning tips at the upper and lower ends. The beneficial effect is that since the cleaning blocks have tips, the cleaning blocks with tips can clean the mud and sand in the chute during the lifting process of the protective plate, thereby ensuring the normal lifting of the protective plate.

[0008] Preferably, the silt separation dam of the present invention further includes a deflector plate fixedly connected to the water-facing surface of the protective plate, with its bottom flush with the protective plate and its top higher than the protective plate. The deflector plate is a triangular structure with a slanted guide surface or an arc-shaped structure with a curved guide surface. Advantageously, the deflector plate of the present invention can guide water flow along the slanted guide surface or the curved guide surface to the third silt conveying mechanism, where the third silt conveying mechanism removes silt carried by the water flow.

[0009] In a more preferred embodiment of the present invention, the deflector is an arc-shaped structure with an arc-shaped guide surface, the center of which is located on the waterfront side. Multiple permeable tubes are spaced apart within the arc-shaped guide surface, and each tube contains multiple weighted balls. This advantageously provides the following benefits: the permeable tubes rotate in conjunction with the arc-shaped guide plate. When impacted by water flow, the tubes rotate, dissipating water flow energy and reducing the impact of water flow on the sediment guide, thereby protecting the deflector. Furthermore, the weighted balls increase the weight of the permeable tubes, dissipating more water flow energy and further reducing the impact of water flow on the deflector.

[0010] Preferably, the lifting power source includes a plurality of hydraulic cylinders arranged at intervals on the beam.

[0011] More preferably, the dam with sediment separation function according to the present invention further includes a control terminal and an underwater camera for monitoring sediment beneath the dam body, the underwater camera being wirelessly connected to the control terminal, and the first, second, and third sediment conveying mechanisms being wirelessly connected to the control terminal. During actual operation, the underwater camera can be used to capture the location of sediment, and the sediment conveying mechanisms can be activated accordingly based on the sediment accumulation to achieve automatic sand removal.

[0012] Compared with the prior art, the present invention installs a protective component on the water-facing side of the gate, which can be used to protect the water-facing side of the gate. The horizontally arranged second sediment conveying mechanism and the third sediment conveying mechanism are then used to convey the sediment on the water-facing side of the protective component to the vertical first sediment conveying mechanism, and the first sediment conveying mechanism is used to convey the sediment out, effectively preventing sediment from accumulating below the water-facing side of the dam body and ensuring normal drainage of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the dam body and gates.

[0014] Figure 2 It is a schematic diagram of the present invention.

[0015] Figure 3 It is a schematic diagram of the protective assembly and the guide plate in the present invention.

[0016] Figure 4 It is a schematic diagram of the protective component in the present invention.

[0017] Figure 5 It is a schematic diagram of the first sediment transport mechanism in the present invention.

[0018] Figure 6 It is a schematic diagram of the installation of the crossbeam and the hydraulic cylinder in the present invention.

[0019] Figure 7 It is a circuit principle block diagram of the present invention. DETAILED DESCRIPTION

[0020] The following describes an embodiment of the present invention in detail with reference to the accompanying drawings. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. However, the protection scope of the present invention is not limited to the following embodiment.

[0021] It should be noted that, in the description of the present invention, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0022] In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connection" that may appear should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] like Figure 1-6 As shown, the present invention provides a water retaining dam with a sediment separation function, comprising a dam body 1, a gate 2 provided on the dam body 1, a support structure provided on the water-facing surface of the dam body 1, a protective structure provided on the support structure, and a sediment cleaning mechanism. The support structure comprises a support column 3.1 provided on the dam body 1 and a first sediment conveying mechanism 3.2. The first sediment conveying mechanism 3.2 and the support column 3.1 are arranged vertically opposite to each other, and the first sediment conveying mechanism 3.2 and the support column 3.1 are respectively fixed to the dam body 1 to ensure stability. The protective structure includes a crossbeam 4.1 disposed on top of the first sediment conveying mechanism 3.2 and the support column 3.1, a protective assembly for protecting the gate 2, and a lifting power source (including multiple hydraulic cylinders 4.6 arranged side by side on top of the crossbeam 4.1) disposed on the crossbeam 4.1. The ends of the crossbeam 4.1 are respectively fixedly connected to the first sediment conveying mechanism 3.2 and the support column 3.1 to ensure the reliable installation of the crossbeam 4.1. The upper portions of the support column 3.1 and the first sediment conveying mechanism 3.2 (specifically, the outer shell) are provided with chutes 4.2 facing each other. The two ends of the protective assembly are correspondingly inserted into the chutes 4.2. When the lifting power source is in operation, it can drive the protective assembly to rise and fall along the chutes 4.2, and the chutes 4.2 serve as a guide. The sediment cleaning mechanism includes a third sediment conveying mechanism 5.1 horizontally arranged below the protective assembly and a second sediment conveying mechanism 5.2 horizontally arranged below the third sediment conveying mechanism 5.1 (two or more second sediment conveying mechanisms 5.2 can be arranged at intervals up and down). The discharge port of the second sediment conveying mechanism 5.2 and the discharge port of the third sediment conveying mechanism 5.1 are respectively connected to the feed port of the first sediment conveying mechanism 3.2, and the sediment is delivered through the first sediment conveying mechanism 3.2; the first sediment conveying mechanism 3.2, the second sediment conveying mechanism 5.2 and The third sediment conveying mechanism 5.1 is a screw conveyor. The discharge port of the first sediment conveying mechanism 3.2 is connected to the top surface of the dam body 1. The feed port of the third sediment conveying mechanism 5.1 faces the water direction (i.e., facing the upstream water flow) and is used to clean up the sediment at a higher position; the feed port of the second sediment conveying mechanism 5.2 faces the lower part of the gate 2 (i.e., towards the dam body) and is used to clean up the sediment accumulated below the water-facing surface of the dam body 1. The first sediment conveying mechanism is arranged vertically, and its top extends upward from the dam body and has a discharge port F, which can deliver sediment from bottom to top to achieve sediment cleaning.

[0024] The present invention installs a protective component on the water-facing side of the gate 2, which can be used to protect the water-facing side of the gate 2. Then, the horizontally arranged second sediment conveying mechanism 5.2 and the third sediment conveying mechanism 5.1 are used to convey the sediment on the water-facing side of the protective component to the vertical first sediment conveying mechanism 3.2. The first sediment conveying mechanism 3.2 is used to convey the sediment out, effectively preventing sediment from accumulating below the water-facing side of the dam body 1 and ensuring normal drainage of the gate 2.

[0025] Combine Figure 3-4 It can be seen that the protection assembly includes a protection plate 4.3 for protecting the gate 2 and sliders 4.4 arranged on both sides of the protection plate 4.3. The power output end of each hydraulic cylinder (i.e., the end of the piston rod) is connected to the protection plate 4.3, and the slider 4.4 is inserted into the chute 4.2. In the water blocking state, the lifting power source drives the protection plate 4.3 to descend to the corresponding position of the gate 2 to protect the gate 2. In addition, cleaning blocks 4.5 (preferably triangular structures) with cleaning tips are symmetrically provided at the upper and lower ends of each slider 4.4. Since the cleaning blocks 4.5 have tips, the cleaning blocks 4.5 with tips can clean the mud and sand in the chute 4.2 during the lifting process of the protection plate 4.3, preventing mud and sand from accumulating in the chute 4.2 and affecting the lifting of the protection plate 4.3, thereby ensuring the normal operation of the protection assembly.

[0026] Combine Figure 1-2As can be seen, the water retaining dam of the present invention also includes a deflector plate 6 fixed to the water-facing surface of the protective plate 4.3. Its bottom is flush with the protective plate 4.3 and its top is higher than the protective plate 4.3. When the protective plate 4.3 is in the protective position (i.e., the protective plate 4.3 is located on the water-facing side of the gate 2 and opposite the gate 2), the top of the deflector plate 6 is substantially aligned with the top surface of the dam body 1. The deflector plate 6 not only diverts the water, allowing it to fall smoothly, but also reduces the impact of the water on the dam body 1. The deflector plate 6 is a right-angled triangle with a guiding slope. The slope faces the water on the water-facing side. The water flows along the guide slope, diverting sediment in the water flow and protecting the hydraulic cylinder.

[0027] In other embodiments of the present invention, the guide plate can also be an arc-shaped plate with an arc-shaped guide surface, and the arc center of the arc-shaped guide surface is located on the water-facing side of the guide plate. A plurality of water-permeable cylinders are rotatably arranged on the arc-shaped guide surface, and a plurality of counterweight balls are arranged in each water-permeable cylinder. The total height of the counterweight balls in the water-permeable cylinder is not greater than two-thirds of the height of the inner cavity of the water-permeable cylinder, ensuring that the counterweight balls can float up and down in the water-permeable cylinder. In the present invention, the water-permeable cylinder and the arc-shaped guide plate 6 are rotatably matched. When impacted by water flow, the water-permeable cylinder rotates, thereby consuming water flow energy, reducing the impact of water flow on sediment guide, and thus protecting the guide plate 6; in addition, the counterweight balls can increase the weight of the water-permeable cylinder, thereby consuming more water flow impact energy, and further reducing the impact of water flow on the guide plate 6.

[0028] Combine Figure 7 As can be seen, the water retaining dam of the present invention also includes a control terminal and an underwater camera for monitoring sediment beneath the dam body 1. The underwater camera is wirelessly connected to the control terminal, and the first, second, and third sediment conveying mechanisms 3.2, 5.2, and 5.1 are all wirelessly connected to the control terminal. During operation, the underwater camera monitors the sediment level on the waterfront side of the dam body 1 in real time. When sediment accumulates at the second sediment conveying mechanism 5.2, the control terminal remotely controls the second and first sediment conveying mechanisms 5.2 to operate simultaneously, effectively clearing sediment from the lower portion of the dam body. When the sediment level rises to the corresponding position of the third sediment conveying mechanism 5.1, the third sediment conveying mechanism 5.1 is activated again. Sediment in the second and third sediment conveying mechanisms 5.2, 5.1, eventually enters the first sediment conveying mechanism 3.2 and is then transported out through the first sediment conveying mechanism 3.2, effectively clearing sediment from the waterfront side of the dam body 1 and minimizing sediment accumulation.

[0029] Finally, it should be emphasized that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dam with sediment separation function, comprising a dam body and a gate arranged on the dam body, characterized in that: The dam further comprises a support structure provided on the water-facing surface of the dam body, a protective structure provided on the support structure, and a sediment cleaning mechanism, wherein the support structure comprises a support column provided at one end of the dam body and a first sediment conveying mechanism provided at the other end of the dam body, wherein the first sediment conveying mechanism and the support column are arranged vertically opposite to each other; The protective structure includes a crossbeam arranged on the top of the first sediment conveying mechanism and the support column, a protective component for protecting the gate, and a lifting power source arranged on the crossbeam; wherein, the upper parts of the support column and the first sediment conveying mechanism are provided with chute relative to each other, the two ends of the protective component are clamped in the chute, and the lifting power source drives the protective component to rise and fall along the chute; The sediment cleaning mechanism includes a third sediment conveying mechanism horizontally arranged below the protective assembly and a second sediment conveying mechanism horizontally arranged below the third sediment conveying mechanism, wherein the discharge port of the second sediment conveying mechanism and the discharge port of the third sediment conveying mechanism are respectively connected to the feed port of the first sediment conveying mechanism; Among them, the first sediment conveying mechanism, the second sediment conveying mechanism and the third sediment conveying mechanism are all auger conveyors. The discharge port of the first sediment conveying mechanism is connected to the top surface of the dam body, the feed port of the third sediment conveying mechanism faces the water direction, and the feed port of the second sediment conveying mechanism faces the lower part of the gate.

2. The water retaining dam with sediment separation function according to claim 1, characterized in that: The protection assembly includes a protection plate for protecting the gate and sliders arranged on both sides of the protection plate. The power output end of the lifting power source is connected to the protection plate, and the sliders are inserted in the slide groove.

3. The water retaining dam with sediment separation function according to claim 2, characterized in that: Cleaning blocks with cleaning tips are symmetrically arranged at the upper and lower ends of each sliding block.

4. The water retaining dam with sediment separation function according to claim 2, characterized in that: It also includes a guide plate fixedly connected to the water-facing surface of the protective plate, whose bottom is flush with the protective plate and the top is higher than the protective plate. The guide plate is a triangular structure with a guiding slope or an arc-shaped structure with an arc-shaped guide surface.

5. The water retaining dam with sediment separation function according to claim 4, characterized in that: The guide plate is an arc-shaped structure with an arc-shaped guide surface, and the arc center of the arc-shaped guide surface is located on the water-facing side. A plurality of water-permeable tubes are arranged at intervals in the arc-shaped guide surface, and a plurality of counterweight balls are arranged in each of the water-permeable tubes.

6. The water retaining dam with sediment separation function according to claim 1, characterized in that: The lifting power source includes a plurality of hydraulic cylinders arranged at intervals on the crossbeam.

7. The water retaining dam with sediment separation function according to claim 1, characterized in that: It also includes a control terminal and an underwater camera for monitoring the sediment under the dam body. The underwater camera is wirelessly connected to the control terminal, and the first sediment transport mechanism, the second sediment transport mechanism, and the third sediment transport mechanism are all wirelessly connected to the control terminal.

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