Siphon type automatic desilting device
By introducing a water capsule structure into the siphon pipeline, high-pressure gas is used to control the floating and sinking of the water capsule, the movement and sinking of the sand-absorbing section is achieved, which solves the problem of small dredging range of existing devices and improves the dredging effect.
Patent Information
- Application Number
- CN202422342998.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing siphon pipe sand discharge device has a small silt range, and it is difficult for the sand suction port to sink into the bottom of the silt, affecting the dredging effect.
The sand-sucking pipe and two water capsule structures are designed to control the floating and sinking of the water capsule through the inlet and outlet air outlets, and the reaction force of water is used to achieve horizontal movement and sinking of the sand-sucking section, thereby increasing the silt range.
The dredging range is improved, and the sand suction mouth can be easily sunk into the bottom of the mud and sand, enhancing the dredging effect.
Smart Images
Figure CN223269299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy silt removal, in particular to a siphon type automatic sand discharge device. Background Art
[0002] During the long-term use of the reservoir, silt accumulation has always been a problem that must be solved. If the silt accumulation problem is not dealt with in a timely manner, it will have a great impact on the reservoir's ability to perform engineering benefits such as flood control, power generation, and water supply.
[0003] Siphonic pipe desilting utilizes the siphon effect of the water level difference between the upstream and downstream of the reservoir to suck the sediment accumulated in the reservoir to the downstream of the dam through the sand suction pipe. However, since the sand suction pipe can only suck the sediment around the sand suction port into the sand suction pipe, the scope of sand suction and dredging is small and the effect is not good. At the same time, it is not easy to sink the sand suction port to the bottom of the water where the silt is located, which affects the sand suction port's absorption of sediment. Utility Model Content
[0004] The purpose of the utility model is to overcome the problems in the prior art and to provide a siphon type automatic sand discharge device which can increase the silt removal range and can conveniently sink the sand suction port to the bottom of the silt to be sucked.
[0005] The siphon type automatic sand discharge device provided by the utility model comprises:
[0006] The sand suction pipe comprises a sand suction section, wherein the sand suction section is provided with a sand suction port for sucking sediment;
[0007] Two water bags are symmetrically arranged on both sides of the sand suction section. Both water bags are provided with water inlets and outlets and air inlets and outlets. The water inlets and outlets are respectively arranged on one side of the corresponding water bag away from the other water bag, and the air inlets and outlets are used to introduce high-pressure gas.
[0008] Preferably, the sand suction section includes a plurality of sand suction ports, each of which is provided on a side wall of the sand suction section and is sequentially arranged along the length direction of the sand suction section.
[0009] Preferably, when the bottom of the sand suction section is in a horizontal state, the bottom of each sand suction port is located at the bottom of the bottom of the sand suction section, and the two water bags are symmetrically located on both sides of the line connecting the centers of the sand suction ports.
[0010] Preferably, the sand suction pipe further comprises a descending section and an ascending section, the sand suction section is sequentially connected to the ascending section and the descending section, and the spacing between the sand suction ports gradually decreases from the end close to the ascending section to the end far from the ascending section.
[0011] Preferably, the two water bags are both strip-shaped and are arranged along the length direction of the sand suction section. Each water bag includes multiple water inlets and outlets, and the water inlets and outlets are arranged in sequence along the length direction of the corresponding water bag.
[0012] Preferably, the water inlets and outlets are uniformly arranged in sequence along the length direction of the corresponding water bag.
[0013] Preferably, the two water bags are connected via a connecting pipe.
[0014] Preferably, each of the water inlets and outlets is provided with a first valve, and each first valve is connected to a controller signal.
[0015] Preferably, the air inlet and outlet are both provided at the top of the corresponding water bag.
[0016] Preferably, the water inlet and outlet are respectively arranged on the corresponding water bag at a position close to the bottom on a side away from the other water bag.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] The siphon type automatic sand discharge device of the utility model is provided with a sand suction pipe and two water bags. When the sand suction section needs to be moved, high-pressure gas is introduced through the air inlet and outlet, so that water is discharged from the water inlet and outlet, thereby reducing the dead weight and achieving buoyancy. When the water inlet and outlet stop introducing high-pressure gas, they will be filled with water due to the water pressure. At this time, excess gas can be discharged through the air inlet and outlet, thereby increasing the dead weight and achieving sinking. At the same time, by controlling the power of the high-pressure gas pressurization, the flow rate of the drainage, that is, the flow rate, is controlled to control the size of the force of the water. The reaction force can be used to achieve horizontal movement of the entire sand suction section in the water. The movement of the sand suction section and the sand suction port thereon can increase the dredging range, and at the same time, the sand suction port can be conveniently sunk to the bottom of the mud and sand that needs to be sucked. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall side structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the top view of the sand suction section of the present invention;
[0021] Figure 3 This is a side structural diagram of the water bag of the present invention.
[0022] Description of reference numerals:
[0023] 1. Sand suction section; 2. Sand suction port; 3. Water injection port; 4. Second valve; 5. Descending section; 6. Ascending section; 7. Water bag; 8. Water inlet and outlet; 9. Connecting pipe; 10. Air inlet and outlet. DETAILED DESCRIPTION
[0024] The following is combined with Figures 1 to 3 , the specific embodiments of the present invention are described in detail, but it should be understood that the scope of protection of the present invention is not limited by the specific embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0025] The siphon type automatic sand discharge device provided by the utility model includes a sand suction pipe and two water bags 7. The sand suction pipe includes a sand suction section 1, a descending section 5 and an ascending section 6. The sand suction section 1 is connected with the ascending section 6 and the descending section 5 in sequence. The sand suction section 1 and the ascending section 6 are both located upstream of the dam body, and the descending section 5 is located downstream of the dam body. A second valve 4 is provided on the descending section 5 to control the flow or shutoff of the descending section 5 through the second valve 4. A water injection port 3 is provided between the ascending section 6 and the descending section 5. , and is arranged across the dam body. A sand suction port 2 is provided on the sand suction section 1, and the sand suction port 2 is used to absorb sediment. Two water bags 7 are symmetrically arranged on both sides of the sand suction section 1. Both water bags 7 are provided with water inlets and outlets 8 and air inlets and outlets 10. The water inlets and outlets 8 are respectively arranged on the side of the corresponding water bag 7 away from the other water bag 7. The air inlet and outlet 10 is used to introduce high-pressure gas. Specifically, the air inlet and outlet 10 is connected to the high-pressure air pump through an air pipe, and an air outlet valve is provided on the side wall of the air pipe.
[0026] Directions:
[0027] Before starting the present invention, first close the second valve 4, then open the top water injection port 3, and inject water from the water injection port 3. The position of the water injection port 3 should be slightly higher so that the injected water can flow into the descending section 5 of the sand suction pipe by gravity. However, the position of the water injection port 3 should not be too high to prevent excessive negative pressure from appearing on the top, which will cause cavitation and erosion, thereby affecting the stability of the present invention. However, it is necessary to ensure that the height difference between the water injection port 3 and the second valve 4 is higher than the minimum height difference that produces the siphon phenomenon. If the minimum height difference cannot be met, the second valve 4 can be appropriately moved downstream.
[0028] When discharging sand, just close the water inlet 3 and open the second valve 4. The pressure difference can form a siphon effect, and then the sand is siphoned out by relying on the water pressure;
[0029] When it is necessary to stop draining sand, the water injection port 3 is simply opened to allow air to enter the sand suction pipe, thereby destroying the siphon effect and causing the utility model to stop working.
[0030] When the sand suction section 1 needs to be moved, the high-pressure air pump is turned on, and high-pressure gas is introduced into the water bag through the air inlet and outlet 10, so that water is discharged from the water inlet and outlet 8, thereby reducing the deadweight and achieving floating; when the water inlet and outlet 8 stops introducing high-pressure gas, the air outlet valve is opened. At this time, the excess high-pressure gas can be discharged from the air outlet valve through the air inlet and outlet 10 via the trachea, and due to the water pressure, the water will enter the water bag 7 from the water inlet and outlet 8, thereby increasing the deadweight and achieving sinking. According to the formula F = ρQv, Q = Av, F = ρAv 2 Since A is a set value, the impact of water depends on v. By controlling the power of high-pressure gas pressurization, the flow rate of drainage, that is, the flow rate, is controlled to control the size of the force of water. The reaction force can be used to achieve horizontal movement of the entire sand suction section 1 in the water. The movement of the sand suction section 1 and the sand suction port 2 thereon can greatly increase the dredging range of the utility model, and at the same time, the sand suction port 2 can be conveniently sunk to the bottom of the mud and sand to be sucked.
[0031] As a preferred embodiment, the sand suction port 2 on the sand suction section 1 includes multiple sand suction ports 2, each of which is arranged on the side wall of the sand suction section 1 and arranged in sequence along the length direction of the sand suction section 1. By adopting the above technical solution, the range of sand suction can be further improved by setting multiple sand suction ports 2.
[0032] As a preferred manner, when the sand suction section 1 is in a horizontal state, each of the sand suction ports 2 is located at the bottom of the sand suction section 1, and the two water bags 7 are symmetrically located on both sides of the center line of each sand suction port 2, and holes are directly opened at the bottom of the sand suction section 1, so that it can use the hydraulic principle to discharge sand from near to far, which conforms to the most serious siltation law in front of the dam body and can achieve a better sand discharge effect.
[0033] As a preferred embodiment, the spacing between the sand suction ports 2 gradually decreases from one end close to the rising section 6 to the end away from the rising section 6. In this way, the sand suction capacity of the sand suction section 1 in the area away from the rising section 6 can be increased, which is beneficial to the uniform sand discharge thickness along the entire length of the sand suction section 1. At the same time, since the spacing between the sand suction ports 2 at the end of the sand suction section 1 close to the rising section 6 is larger, the overall stability of the utility model can be improved.
[0034] As a preferred embodiment, the two water bags 7 are both strip-shaped and are arranged along the length direction of the sand suction section 1. Each water bag 7 includes multiple water inlets and outlets 8, and each water inlet and outlet 8 is arranged in sequence along the length direction of the corresponding water bag 7. In this way, the sand suction port 2 at the bottom of the sand suction section 1 can more easily absorb mud and sand, and the horizontal movement of the sand suction section 1 can be smoother.
[0035] As a preferred embodiment, the water inlets and outlets 8 are uniformly arranged in sequence along the length direction of the corresponding water bag 7. The above technical solution can improve the stability of the horizontal movement of the sand suction section 1.
[0036] As a preferred embodiment, the two water bags 7 are connected by a connecting pipe 9. Thus, by connecting the devices on both sides through the connecting pipe 9, the water levels on both sides can be kept consistent, the center of gravity is stable, and the stability of the sand suction section 1 during drainage is ensured, thereby preventing the sand suction section 1 from rotating and tilting in the water.
[0037] As a preferred embodiment, each of the water inlets and outlets 8 is provided with a first valve 4, and each first valve 4 is connected to the controller signal. In this way, the movement direction of the sand suction section 1 can be controlled by controlling the opening and closing of the first valve 4 in the water inlet and outlet 8 by the controller, which is more convenient.
[0038] As a preferred embodiment, the air inlet and outlet 10 are both provided at the top of the corresponding water bag 7, so that the high-pressure gas can squeeze the water in the water bag 7 downward to ensure the drainage effect.
[0039] As a preferred embodiment, the water inlet and outlet 8 are respectively provided on the corresponding water bag 7 at a position close to the bottom on a side away from the other water bag 7, so as to facilitate the discharge of water in the water bag 7.
[0040] In the description of the present utility model, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.
[0041] In the description of this utility model, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A siphon type automatic sand discharge device, characterized in that: include: The sand suction pipe comprises a sand suction section (1), the sand suction section (1) is provided with a sand suction port (2), and the sand suction port (2) is used to suck sediment; Two water bags (7) are symmetrically arranged on both sides of the sand suction section (1). The two water bags (7) are each provided with a water inlet and outlet (8) and an air inlet and outlet (10). The water inlet and outlet (8) are respectively arranged on the side of the corresponding water bag (7) away from the other water bag (7). The air inlet and outlet (10) are used to introduce high-pressure gas. The sand suction port (2) on the sand suction section (1) includes a plurality of sand suction ports (2). Each sand suction port (2) is arranged on the side wall of the sand suction section (1) and is arranged in sequence along the length direction of the sand suction section (1). The sand suction pipeline also includes a descending section (5) and an ascending section (6). The sand suction section (1) is connected to the ascending section (6) and the descending section (5) in sequence. The spacing between the sand suction ports (2) gradually decreases from the end close to the ascending section (6) to the end away from the ascending section (6).
2. The siphon type automatic sand discharge device according to claim 1, characterized in that: When the sand suction section (1) is in a horizontal state, each of the sand suction ports (2) is located at the bottom of the sand suction section (1), and the two water bags (7) are symmetrically located on both sides of a line connecting the centers of each of the sand suction ports (2).
3. The siphon type automatic sand discharge device according to claim 1, characterized in that: The two water bags (7) are both strip-shaped and are arranged along the length direction of the sand suction section (1). Each water bag (7) includes a plurality of water inlets and outlets (8), and each water inlet and outlet (8) is arranged in sequence along the length direction of the corresponding water bag (7).
4. The siphon type automatic sand removal device according to claim 3, characterized in that: The water inlets and outlets (8) are uniformly arranged in sequence along the length direction of the corresponding water bag (7).
5. The siphon type automatic sand discharge device according to claim 1, characterized in that: The two water bags (7) are connected via a connecting pipe (9).
6. The siphon type automatic sand removal device according to claim 5, characterized in that: A first valve (4) is provided in each of the water inlets and outlets (8), and each first valve (4) is connected to a controller signal.
7. The siphon type automatic sand removal device according to claim 1, characterized in that: The air inlet and outlet (10) are both provided at the top of the corresponding water bag (7).
8. The siphon type automatic sand removal device according to claim 1, characterized in that: The water inlet and outlet (8) are respectively provided on the corresponding water bag (7) at a position close to the bottom on a side away from the other water bag (7).