A dam based on controlling the rise and fall of buoys by inflation and deflation

Abstract

The present invention proposes a dam based on controlling the rise and fall of a pontoon by inflation and deflation, characterized in that the dam includes an inflatable pontoon, a bag cloth, an inflatable module, a sinking foundation and a one-way valve; the bag cloth is fixed between the inflatable pontoon and the sinking foundation, and the inflatable module is connected to the inflatable pontoon; and a plurality of one-way valves are arranged on the surface of the bag cloth. The dam of the present invention can not only effectively overcome the limitations of traditional water conservancy facilities, but also realize intelligent and rapid water level regulation and flow control while ensuring safety and reliability, while ensuring the smooth passage of ships. The dam design of the present invention is suitable for waters that require strict control of water levels and maintenance of navigability through its unique structure and technical characteristics, and provides strong support for promoting the comprehensive management and sustainable utilization of water resources, and for environmental protection, agricultural development, urban safety, inland waterway transportation and many other aspects.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a dam. Background Art

[0002] With the acceleration of global climate change and urbanization, traditional water conservancy facilities have exposed many shortcomings in dealing with complex and changing hydrological conditions. For example, the increasing frequency of extreme weather events such as heavy rains, floods, seawater backflow, and droughts has put forward higher requirements for the safety and flexibility of existing dams; and traditional concrete dams have limitations in responding quickly to these changes due to their fixed height and long construction period. In addition, traditional dam construction is often accompanied by high costs and negative impacts on the environment, including destroying the natural fluidity and biodiversity of river ecosystems, affecting fish migration paths, and potentially triggering geological disasters.

[0003] At the same time, modern water management is facing multiple challenges: agricultural irrigation requires more efficient water resource allocation; urban flood control requires more intelligent and flexible water level regulation; ecological and environmental protection emphasizes the restoration and maintenance of the ecological functions of natural rivers; and the shipping industry also expects smoother and safer navigation conditions. Existing water conservancy facilities are difficult to meet these diverse needs at the same time, especially in scenarios where water level regulation, flow control and navigation functions need to be taken into account. Summary of the invention

[0004] The purpose of the present invention is to provide a dam which can avoid damaging the ecology and can simultaneously perform water level regulation, flow control and ship passage.

[0005] To achieve the above object, the present invention proposes a dam based on controlling the rise and fall of a buoy by inflation and deflation, the dam comprising an inflatable buoy, a bag cloth, an inflatable module, a sinking foundation and a one-way valve;

[0006] The bag cloth is fixed between the inflatable buoy and the bottom foundation, and the inflatable module is connected to the inflatable buoy; a plurality of one-way valves are arranged on the surface of the bag cloth.

[0007] Furthermore, the inflatable float is an inflatable and deflable cylinder made of nylon, polyester fiber, polyurethane, polyurethane fabric, polyamide or rubber.

[0008] Furthermore, the bag cloth is a double-layer bag cloth, and the double-layer bag cloth is fixed by evenly distributed buckles;

[0009] Block-shaped foam bubbles are filled between the double-layer bag cloth, and the double-layer bag cloth is squeezed and fixed based on the buckle, so that continuous arc-shaped protrusions are formed on the surface of the bag cloth.

[0010] Furthermore, the upper edge of the double-layer bag cloth is sleeved on the inflatable buoy, and the lower edge of the double-layer bag cloth is sealed and connected to the bottom foundation through a pressure strip.

[0011] Furthermore, the bottom foundation is a concrete square column.

[0012] Furthermore, the inflation module includes an inflation pipe, an inflation pump and a control device; the inflation pipe connects the inflation float and the inflation pump, and the control device controls the inflation amount of the inflation pump.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. Using the balance principle of the buoys on the water surface and in the water, the buoys are raised and lowered by inflation and deflation to form an innovative adjustable dam structure. The system can quickly adjust the height of the dam according to actual needs, effectively manage the water flow, and not affect the passage of ships; whether it is seasonal water volume changes or flow control in emergency situations, it can respond quickly.

[0015] 2. Due to the use of non-permanent structures, the dam can be prefabricated before use and can be completely dismantled or reduced to a minimum when not in use, reducing interference with the river ecosystem and protecting natural habitats and biodiversity.

[0016] 3. Compared with the huge investment and long construction period required for traditional concrete dam construction, the installation of floating dams is simpler and faster, with lower initial construction and later maintenance costs and obvious economic benefits.

[0017] 4. The design of the floating dam can be quickly applied in emergency situations, allowing it to automatically sink to avoid danger under extreme conditions such as floods and seawater backflow, avoiding the risk of dam collapse due to overload pressure and ensuring the safety of life and property of downstream residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a dam based on controlling the rise and fall of a buoy based on inflation and deflation of air in an embodiment of the present invention;

[0019] Figure 2 It is a perspective view of the buoy 1 in an inflated state in an embodiment of the present invention;

[0020] Figure 3 It is a perspective view of the float 1 in the deflated state in the embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of a one-way valve in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of solving the equilibrium condition of a buoy in water in Example 1 of the present invention;

[0023] Figure 6 It is a schematic diagram of the force on the buoy when there is no water pressure difference on both sides of the buoy in water in Example 1 of the present invention;

[0024] Figure 7 It is a schematic diagram of the force on the buoy when there is a water pressure difference on both sides of the buoy in the water in Example 1 of the present invention;

[0025] Figure 8 A schematic diagram of solving the equilibrium condition of the water surface buoy in Example 2 of the present invention;

[0026] Fig. 9 This is a schematic diagram of the water pressure force on the right side of the water surface buoy in Example 2 of the present invention;

[0027] Fig.10 Schematic diagram of the water pressure force on the left side of the surface buoy in Example 2 of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.

[0029] like Figure 1 As shown, the present invention proposes a dam based on the control of the rise and fall of the buoy 1 by inflation and deflation, which can not only effectively overcome the limitations of traditional water conservancy facilities, but also realize intelligent and rapid water level regulation and flow control under the premise of ensuring safety and reliability, while ensuring the smooth passage of ships. The dam design provides a new solution to the current and future hydrological challenges through its unique structure and technical characteristics, and is particularly suitable for those waters that require strict control of water levels and the need to maintain navigability. This invention aims to promote the comprehensive management and sustainable use of water resources, and provide strong support for environmental protection, agricultural development, urban safety, inland waterway transportation and many other aspects.

[0030] Specific structure such as Figure 1 As shown, the dam is composed of an inflatable buoy 1, a bag cloth 2, an inflatable module, a sinking foundation 5 and a one-way valve 21.

[0031] In this embodiment, the inflatable float 1 is an inflatable and deflable cylinder made of rubber. In actual applications, nylon, polyester fiber, polyurethane, polyurethane fabric, polyamide, rubber and other materials can also be used. Rubber or polymer composite materials that are corrosion-resistant, high-pressure-resistant, elastic and airtight are preferred.

[0032] In this embodiment, the bag cloth 2 is made of nylon material. In practical applications, polyester fiber, polyurethane, polyurethane fabric, polyamide, rubber and other materials can also be used. Rubber or polymer composite materials that are corrosion-resistant, high-pressure-resistant, elastic and airtight are preferred.

[0033] In this embodiment, if Figure 1As shown, the bag cloth 2 adopts a double-layer structure, and the double-layer bag cloth 2 is fixed by evenly distributed buckles 4. The upper edge of the double-layer bag cloth 2 is sleeved on the inflatable buoy 1, and the lower edge of the double-layer bag cloth 2 is sealed and connected to the bottom foundation 5 through a pressure strip. Block-shaped foam bubbles are filled between the double-layer bag cloth 2. After the double-layer bag cloth 2 is squeezed and fixed based on the buckles 4, as shown in FIG. Figure 1 As shown, continuous arc-shaped protrusions are formed on the surface of the bag cloth 2, and the surface of the protrusions is smooth, which is not conducive to the adhesion of mud in the water, and also facilitates the cleaning of the surface mud.

[0034] In this embodiment, the bottom foundation 5 is a concrete square column. The inflation module includes an inflation pipe 3, an inflation pump 7 and a control device 6; the inflation pipe 3 connects the inflation buoy 1 and the inflation pump 7, and the control device 6 controls the inflation amount of the inflation pump 7, and the control device 6 is an electrically controlled valve.

[0035] When the buoy 1 is inflated, its state in the water is as follows: Figure 2 As shown, when the float 1 is deflated, its state in the water is as follows Figure 3 shown.

[0036] In this embodiment, if Figure 4 As shown, the one-way valve 21 includes a cylindrical valve body 22 and a sheet-like valve plate 23. The middle part of the cylindrical valve body 22 is a flow channel. The cylindrical valve body 22 is inserted into the bag cloth 2. The bag cloth 2 is fixed by clamping it between the skirts on both sides of the valve body 22. The flow channel connects the water on both sides of the bag cloth 2. The middle part of the valve plate 23 is connected to a valve stem, which is inserted into the valve body 22. The bottom of the valve stem is connected to a limit plate 25. The surface of the limit plate 25 is provided with a plurality of through holes 24 for facilitating the flow of water. In actual application, during the forward flow of water pressure, the valve plate 23 is attached to the skirt of the valve body 22 under the pressure of the water pressure to achieve the effect of blocking the flow of water. The skirt can be provided with a sealing rubber to ensure the sealing between the valve plate 23 and the valve plate 23. When the water pressure flows in the reverse direction, the valve plate 23 moves in the reverse direction under the pressure of the water pressure, so that the water flows through the through hole 24 on the surface of the limit plate 25 through the flow channel, and then passes through the gap between the valve body 22 and the valve plate 23, forming a one-way valve 21 installed on the bag cloth 2.

[0037] In order to facilitate those skilled in the art to understand the function of the present invention, the present invention will be analyzed from two perspectives: the inflated stress state of the buoy on the water surface and the inflated stress state of the buoy in the water.

[0038] Example 1: Solution of equilibrium condition of buoy in water:

[0039] like Figure 5As shown, it is known that: the radius of the float is r, there are curtains above and below the float, the curtains can withstand tension, the water head on the right side of the curtain is higher than the water head on the left side by Δh, and the float rotates by an angle of α under the water pressure on both sides. Equilibrium condition: the component of the resultant force of water pressure in the x' direction is zero. Find the relationship between the radius r of the float and the water head difference Δh, and the rotation angle α. The deadweight of the float is temporarily ignored.

[0040] untie:

[0041] 1. If Figure 6 As shown, for a buoy in water, when there is no water pressure difference on both sides, the resultant force of the water pressure on the buoy is the buoyancy, which is vertically upward and has a value of ρgπr 2 .

[0042] 2. If Figure 7 As shown in the figure, when there is a head difference on both sides of the buoy, the water pressure on the right side can be considered to be composed of two parts: the same water pressure P1 as on the left side and the head difference P Δ , P1 and the water pressure on the left are combined into a water pressure without height difference, P Δ =ρgΔh.

[0043] Figure 7 The resultant water pressure in (1) is ρgπr 2 , the direction is upward. The component in the x direction

[0044] F 1x '=ρgπr 2 sinα.

[0045] The resultant water pressure in 7(2) is Direction is -x';

[0046] At equilibrium, F 1x '+F 2x '=0, that is, ρgπr 2 sinα=2ρgΔhrSimplifying, we get

[0047] Example 2: Solving the equilibrium condition of a floating buoy on the water surface

[0048] Solve the equilibrium equation for the buoy

[0049] like Figure 8 As shown, the conditions are: the radius of the float is r, the water head difference on the left and right is Δh, there is a water curtain at the lower end of the float (the water curtain can only bear tension), and the float deflects counterclockwise at an angle α under the water pressure. Ignore the weight of the float and find the relationship between α, Δh and r.

[0050] untie:

[0051] Assume that the resultant force of the water pressure on the right side of the buoy is F1, and the resultant force of the water pressure on the left side of the buoy is F2. When the component of all the water pressures on the x' axis is zero, the buoy is balanced, that is, F1x'+F2x'=0.

[0052] The water pressure on the right side is Fig. 9 As shown, suppose there is a point A on the right side of the cylinder, and the angle between OA and the x-axis is θ, then the water pressure P at point A is A =ρgr(1-sinθ). The component of the water pressure on the right side on the x' axis is F 1x ';

[0053] Solved

[0054]

[0055] The water pressure on the left side is Fig.10 As shown:

[0056] The contact point between the water surface on the left and the cylinder is B, the angle between OB and the x-axis is β, and there is a point C on the left cylinder. Then the water pressure P at point C is c =ρgr(sinθ-sinβ), where The component of the resultant force of the water pressure on the left side on the x' axis.

[0057]

[0058]

[0059] Because F 1x '+F 2x '=0,

[0060] Simplified: This formula is the balance formula for a buoy on the water surface.

[0061] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims

1. A dam based on controlling the rise and fall of buoys by inflation and deflation, characterized in that: The dam includes an inflatable buoy, a bladder cloth, an inflatable module, a sinking foundation and a one-way valve; The bag cloth is fixed between the inflatable buoy and the sinking foundation, and the inflatable module is connected to the inflatable buoy; a plurality of one-way valves are arranged on the surface of the bag cloth.

2. The dam based on inflation and deflation control of buoy lifting and lowering according to claim 1 is characterized in that: The inflatable buoy is an inflatable and deflable cylinder made of nylon, polyester fiber, polyurethane, polyurethane fabric, polyamide or rubber.

3. The dam based on inflation and deflation control of buoy lifting according to claim 1 is characterized in that: The bag cloth is a double-layer bag cloth, and the double-layer bag cloth is fixed by evenly distributed buckles; Block-shaped foam bubbles are filled between the double-layered bag cloths, and the double-layered bag cloths are squeezed and fixed based on the buckles, so that continuous arc-shaped protrusions are formed on the surface of the bag cloths.

4. The dam based on inflation and deflation control of buoy lifting and lowering according to claim 3 is characterized in that: The upper edge of the double-layer bag cloth is sleeved on the inflatable buoy, and the lower edge of the double-layer bag cloth is sealed and connected to the sinking foundation through a pressure strip.

5. The dam based on inflation and deflation control of buoy lifting and lowering according to claim 1 is characterized in that: The bottom foundation is a concrete square column.

6. The dam based on inflation and deflation to control the rise and fall of buoys according to claim 1, characterized in that: The inflation module includes an inflation pipeline, an inflation pump and a control device; The inflation pipe is connected to the inflation float and the inflation pump, and the control device controls the inflation amount of the inflation pump.

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