A test device for dam-break prevention and control flow disturbance piles

Abstract

The present invention discloses a dam-break prevention and control flow disturbance pile test device, which belongs to the field of simulation test technology, including a test operation table, a circulation pool is arranged at one end of the test operation table, a test tank is connected to the end of the circulation pool through a sealing connector, a test unit is arranged in the test tank, a constant pressure water storage chamber is arranged at the end of the test tank, a constant flow outlet is opened on the side wall of the constant pressure water storage chamber facing the test tank, and the constant pressure water storage chamber is connected to the circulation pool through a water circulation component. The present invention uses a water flow disturbance display component arranged in front of the flow disturbance pile to color mark the water flow, so as to explore the influence of different shapes of flow disturbance piles on the flow route of the water flow, and the flow intensity of the water flow at different positions under the action of the flow disturbance pile can be detected by a mobile measuring component and a fixed measuring component, and the calculation data of the influence of the flow disturbance pile on the water flow intensity is obtained, and the influence of the flow disturbance pile on the stability of the dam body is verified by means of experiments and numerical simulations.

Description

Technical Field

[0001] The invention relates to the technical field of simulation tests, and in particular to a dam-break prevention and control disturbance pile test device. Background Art

[0002] The dam-break prevention and control flow disturbance pile is an important hydraulic structure, which is mainly used to reduce the impact and damage caused by the huge water flow formed when the dam breaks to the downstream. The flow disturbance pile generates flow disturbance energy consumption on the water flow. Flow disturbance energy consumption refers to the introduction of flow disturbance structures (such as flow disturbance piles, flow disturbance dams, etc.) to change the way the water flow moves, so that the water flow energy is converted into other forms of energy loss. In the context of dam-break prevention and control, the main purpose of flow disturbance energy consumption is to reduce the impact force and pressure formed when the dam breaks, thereby reducing the damage to the downstream structure and ecological environment. In dam-break prevention and control, effective flow disturbance energy consumption design can greatly reduce the harm caused by dam-break accidents and protect the safety of downstream personnel and facilities;

[0003] The test device can help test and verify the effect and stability of this protective structure. The design of the test device needs to be determined according to specific engineering needs and research purposes. By simulating different water flow conditions and spoiler pile design schemes, its effectiveness and stability in preventing and controlling dam break can be evaluated, providing a scientific basis for the design of actual projects. As an important consideration in the design of hydraulic structures, spoiler energy consumption needs to be verified through experiments and numerical simulations to verify its effect and stability. Based on this, a spoiler pile test device for preventing and controlling dam break is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a dam-break prevention and control disturbance pile test device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A dam-break prevention and control flow-disturbing pile test device comprises a test operation table, a circulation pool is arranged at one end of the test operation table, a test tank is connected to the end of the circulation pool through a sealing connector, a test unit is arranged in the test tank, a constant-pressure water storage chamber is arranged at the end of the test tank, a constant-flow water outlet is opened on the side wall of the constant-pressure water storage chamber facing the test tank, the constant-pressure water storage chamber is connected to the circulation pool through a water circulation component, and a flow rate regulating component for controlling the inclination angle of the test tank is arranged on the test operation table;

[0007] The side walls on both sides of the test tank are provided with sliding adjustment plates, and the sliding adjustment plates are provided with locking components that are combined and connected with the test unit;

[0008] The test unit includes a flow velocity measurement module, a flow disturbance pile simulation module and a dam body test module;

[0009] The spoiler pile simulation module includes multiple groups of mounting seats, the mounting seats are connected to measuring blocks via stamping detection pieces, the bottom of the measuring blocks are connected to detachable spoiler piles via threaded columns, and the mounting seats are provided with multiple water flow disturbance display components;

[0010] The flow rate measurement module includes a mobile measurement component and a fixed measurement component, the fixed measurement component includes a measurement fixing plate, a plurality of pulling visual detection components are evenly arranged on the measurement fixing plate, and the mobile measurement component includes a mobile fixing plate, and the mobile fixing plate is connected to a sensor detection component through a horizontal moving component;

[0011] The dam body test module comprises a dam model and a measuring seat arranged at the bottom of the test tank for measuring the weight of the dam model.

[0012] Preferably, the water circulation component includes a circulation pump arranged in the circulation pool, and the output end of the circulation pump is connected to the constant pressure water storage chamber through a delivery pipe. During the test phase, the delivery pipe is used to ensure that the water volume in the constant pressure water storage chamber is constant.

[0013] Preferably, the flow rate regulating assembly comprises an regulating chute provided in the test operating table, an inclined pad is provided in the regulating chute, and an inclined convex block adapted to the inclined pad is fixedly provided at the bottom of the test trough;

[0014] The side wall of the test operation table is provided with an adjusting electric push rod, the output end of the adjusting electric push rod is fixedly connected with an adjusting support rod, and the adjusting support rod is connected with the inclined pad block through a pushing column.

[0015] Preferably, side grooves are provided on both sides of the test groove, and the sliding adjustment plate is located in the side grooves and can change its position on both sides of the test groove;

[0016] The locking assembly comprises a plurality of locking fasteners installed in the test unit, and the sliding adjustment plate is provided with a fastening lock used in conjunction with the locking fasteners.

[0017] Preferably, the stamping detection member comprises a radial connection port opened on the mounting seat, the measuring block is slidably arranged in the radial connection port, and a pressure sensor for detecting the measuring block is arranged in the radial connection port.

[0018] Preferably, the water flow disturbance display component includes a plurality of drip tubes arranged on a mounting seat, wherein marking display liquids of different colors are arranged in the drip tubes, and a sealing plug is arranged on the top of the drip tube.

[0019] Preferably, the pulling visual detection component includes a scale tube arranged on the measurement fixing plate, the scale tube is connected to a scale plug through a tension spring, and the scale plug is connected to a water flow damping block through a pulling rope.

[0020] Preferably, the horizontal moving component includes a horizontal sliding groove opened on the moving fixed plate, a moving block is slidably arranged in the horizontal sliding groove, a progressive electric push rod is arranged on the moving fixed plate to move the moving block, and the sensing detection part includes a tension sensor arranged on the moving block, and the tension sensor is connected to a tension damping block through a tension rope.

[0021] Preferably, the sealing connection member comprises an assembly seat arranged relatively on the side wall of the circulation pool, the assembly seat is connected to the test tank via a rotating shaft, and the test tank is connected to the circulation pool via a flexible sealing layer.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention is designed for dam-break prevention and control disturbance piles. The potential energy of the water flow is increased by the inclination angle of the test trough, thereby changing the water flow velocity to explore the influence of different flow velocities on the disturbance piles of different shapes, and can simulate the dam-break state of the dam body under the action of different disturbance piles.

[0024] 2. In the process of exploring the influence of the spoiler piles on the dam burst, the present invention uses the water flow disturbance display component arranged in front of the spoiler piles to mark the water flow with color, thereby exploring the influence of spoiler piles of different shapes on the flow path of the water flow.

[0025] 3. The present invention can detect the flow intensity of water flow at different positions under the action of spoiler piles through mobile measuring components and fixed measuring components, obtain calculation data of the influence of spoiler piles on water flow intensity, and verify the influence of spoiler piles on the stability of the dam body through experiments and numerical simulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the assembly structure of a dam-break prevention and control disturbance pile test device proposed by the present invention Figure 1 ;

[0027] Figure 2 Schematic diagram of the assembly structure of a dam-break prevention and control flow disturbance pile test device proposed by the present invention Figure 2 ;

[0028] Figure 3 A schematic diagram of the main body of a dam-break prevention and control disturbance pile test device proposed by the present invention;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a test tank in a dam-break prevention and control disturbance pile test device proposed by the present invention;

[0030] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 6 It is a structural schematic diagram of a disturbance pile simulation module in a dam-break prevention and control disturbance pile test device proposed by the present invention;

[0032] Figure 7 It is a structural schematic diagram of a mobile measuring component in a dam-break prevention and control disturbance pile test device proposed by the present invention;

[0033] Figure 8 The present invention is a schematic diagram of the cross-sectional structure of a fixed measuring component in a dam-break prevention and control disturbance pile test device proposed by the present invention.

[0034] In the figure: 1. Test operation table; 2. Circulation pool; 3. Test tank; 4. Constant pressure water storage chamber; 5. Constant flow outlet; 6. Sliding adjustment plate; 7. Mounting seat; 8. Measuring block; 9. Threaded column; 10. Disturbing pile; 11. Measuring fixed plate; 12. Moving fixed plate; 13. Assembly seat; 14. Measuring seat; 15. Circulation pump; 16. Delivery pipe; 17. Adjustment slide; 18. Inclined pad; 19. Inclined convex Block; 20, adjusting electric push rod; 21, side groove; 22, pushing column; 23, locking fastener; 24, fastening lock; 25, radial connection port; 26, pressure sensor; 27, drip tube; 28, sealing plug; 29, graduated tube; 30, graduated plug; 31, water flow damping block; 32, horizontal sliding groove; 33, moving block; 34, progressive electric push rod; 35, tension sensor; 36, tension damping block. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example, see Figures 1 to 8 A dam-break prevention and control pile test device comprises a test operation table 1, a circulation pool 2 is arranged at one end of the test operation table 1, and a test tank 3 is connected to the end of the circulation pool 2 through a sealing connector. Further, the sealing connector comprises an assembly seat 13 arranged on the side wall of the circulation pool 2, the assembly seat 13 is connected to the test tank 3 through a rotating shaft, and the test tank 3 is connected to the circulation pool 2 through a flexible sealing layer.

[0039] The test tank 3 needs to be rotated to adjust the angle during the process of adjusting the water flow rate. During this process, the test tank 3 and the assembly seat 13 will rotate. The sealing effect between the test tank 3 and the assembly seat 13 can be ensured by setting a flexible sealing layer.

[0040] A test unit is arranged in the test tank 3, a constant pressure water storage chamber 4 is arranged at the end of the test tank 3, and a constant flow water outlet 5 is opened on the side wall of the constant pressure water storage chamber 4 facing the test tank 3;

[0041] It is worth noting that the circulating pump 15 can adjust the water flow delivery, and can ensure that the amount of water delivered to the constant pressure water storage chamber 4 is consistent with the amount of water discharged from the constant flow outlet 5 during the test, and the amount of water in the constant pressure water storage chamber 4 is always guaranteed to be constant. The setting of the constant pressure water storage chamber 4 can ensure that the water flow rate, flow rate and power flowing out of the constant flow outlet 5 are consistent each time;

[0042] The constant pressure water storage chamber 4 is connected to the circulation pool 2 through a water circulation component. Furthermore, the water circulation component includes a circulation pump 15 arranged in the circulation pool 2. The circulation pump 15 is a prior art and will not be described in detail here. The output end of the circulation pump 15 is connected to the constant pressure water storage chamber 4 through a delivery pipe 16. During the test phase, the delivery pipe 16 is used to ensure that the amount of water in the constant pressure water storage chamber 4 is constant.

[0043] The test operation table 1 is provided with a flow rate regulating component for controlling the inclination angle of the test tank 3. The flow rate regulating component includes an adjusting chute 17 provided in the test operation table 1. An inclined pad 18 is provided in the adjusting chute 17. An inclined convex block 19 adapted to the inclined pad 18 is fixedly provided at the bottom of the test tank 3.

[0044] An adjusting electric push rod 20 is disposed on the side wall of the test operation table 1 . An adjusting support rod is fixedly connected to the output end of the adjusting electric push rod 20 . The adjusting support rod is connected to the inclined pad 18 through a pushing column 22 .

[0045] A further effect of the above method is that the inclined surface pad 18 is controlled to move by adjusting the electric push rod 20, so that the inclined surface protrusion 19 that contacts the inclined surface pad 18 moves, thereby gradually increasing the inclination angle of the test tank 3. In the process of increasing the angle of the test tank 3, the potential energy of the water flow in the constant pressure water storage chamber 4 will continue to increase, so that by changing the inclination angle of the test tank 3, the flow rate of the water flow in the test tank 3 can be changed, thereby achieving the effect of controlling the flow rate of the water flow.

[0046] The side walls on both sides of the test slot 3 are provided with sliding adjustment plates 6, and the sliding adjustment plates 6 are provided with locking components that are combined and connected with the test unit. The setting of the locking components can meet the requirements of detachable connection of various modules in the test unit, thereby meeting the free combination of different tests and achieving the effect of multi-type exploration.

[0047] Furthermore, side grooves 21 are provided on both sides of the test tank 3, and the sliding adjustment plate 6 is located in the side grooves 21, and can change the position on both sides of the test tank 3. The sliding adjustment plate 6 is located in the side grooves 21 and can change the position, so that when the position of the test unit in the test tank 3 needs to be adjusted (the water flow rate at different positions is different, that is, the flow rate is changed), it can be flexibly adjusted;

[0048] The lock assembly includes a plurality of locking fasteners 23 installed in the test unit, and a fastening lock 24 used in conjunction with the locking fasteners 23 is provided on the sliding adjustment plate 6;

[0049] It is worth noting that the locking fasteners 23 are arranged on the side walls of the mounting seat 7, the measuring fixing plate 11 and the moving fixing plate 12 to ensure the connection effect.

[0050] The test unit includes a flow velocity measurement module, a disturbance pile simulation module and a dam body test module;

[0051] The spoiler pile simulation module includes multiple groups of mounting seats 7. The arrangement of multiple groups of mounting seats 7 can meet the installation requirements during the test of multiple groups of spoiler piles 10. The mounting seats 7 are connected to measuring blocks 8 through stamping detection parts. Furthermore, the stamping detection parts include radial connecting ports 25 opened on the mounting seats 7. The measuring blocks 8 are slidably arranged in the radial connecting ports 25. A pressure sensor 26 for detecting the measuring blocks 8 is arranged in the radial connecting ports 25.

[0052] By providing the pressure sensor 26 , the magnitude of the impact force of the water flow on the flow-disturbing pile 10 can be measured, thus providing data support for the test.

[0053] The bottom of the measuring block 8 is connected to a detachable flow disturbance pile 10 via a threaded column 9, and a plurality of water flow disturbance display components are arranged on the mounting seat 7;

[0054] The spoiler pile 10 is a test material. The shape and material of the spoiler pile 10 are different according to different test items. The detachable connection between the threaded column 9 and the measuring block 8 can meet the needs of free combination.

[0055] Furthermore, the water flow disturbance display component includes a plurality of drip tubes 27 arranged on the mounting seat 7, wherein the drip tubes 27 are provided with marking display liquids of different colors, and a sealing plug 28 is provided on the top of the drip tubes 27, wherein the sealing plug 28 can prevent the internal marking display liquid from dripping when sealing the drip tubes 27, and only needs to be opened when in use, and the design of different colors can intuitively derive the effects of different disturbance piles 10 on the water flow, and can effectively realize the distinction of water flow paths.

[0056] It should be noted that the drip tube 27 is arranged directly in front of the spoiler pile 10. Different spoiler piles have different forces on the water flow. The color mark produced by the liquid in the drip tube 27 dripping into the water can intuitively determine the interference of different spoiler piles 10 on the water flow and the movement state of the water flow under the action of the spoiler pile 10.

[0057] The flow rate measurement module includes a mobile measurement component and a fixed measurement component. The mobile measurement component and the fixed measurement component are selectively arranged according to different research focuses. The fixed measurement component includes a measurement fixing plate 11, and a plurality of pulling intuitive detection parts are evenly arranged on the measurement fixing plate 11. Furthermore, the pulling intuitive detection part includes a scale tube 29 arranged on the measurement fixing plate 11. The scale tube 29 is connected to a scale plug 30 through a tension spring. When the scale plug 30 is pulled and moved, the scale scale in the scale tube 29 will change. The scale plug 30 is connected to a water flow damping block 31 through a pulling rope.

[0058] The mobile measuring assembly includes a mobile fixed plate 12, and the mobile fixed plate 12 is connected to a sensing detection member via a horizontal moving assembly;

[0059] Furthermore, the horizontal moving component includes a horizontal sliding groove 32 opened on the moving fixed plate 12, a moving block 33 is slidably arranged in the horizontal sliding groove 32, and a progressive electric push rod 34 for moving the moving block 33 is arranged on the moving fixed plate 12. The sensing detection part includes a tension sensor 35 arranged on the moving block 33. The tension sensor 35 is externally connected to a controller for recording tension data to obtain the water flow velocity state at different positions and form drawing data; the tension sensor 35 is connected to a tension damping block 36 through a tension rope, and the tension damping block 36 and the water flow damping block 31 are in the water flow, and the damping block is pushed by the water flow pressure, thereby generating tension on the traction rope and the tension rope.

[0060] The dam body test module includes a dam model and a measuring seat 14 arranged at the bottom of the test tank 3 for measuring the weight of the dam model, wherein the dam model is the test material and is designed in proportion to the actual object. It is a prior art and will not be described in detail here.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dam-break prevention and control flow disturbance pile test device, comprising a test operating table (1), characterized in that: A circulation pool (2) is provided at one end of the test operation table (1); the end of the circulation pool (2) is connected to a test tank (3) via a sealing connector; a test unit is provided in the test tank (3); a constant pressure water storage chamber (4) is provided at the end of the test tank (3); a constant flow water outlet (5) is provided on a side wall of the constant pressure water storage chamber (4) facing the test tank (3); the constant pressure water storage chamber (4) is connected to the circulation pool (2) via a water circulation component; and a flow rate regulating component for controlling the inclination angle of the test tank (3) is provided on the test operation table (1); The side walls on both sides of the test tank (3) are provided with sliding adjustment plates (6), and the sliding adjustment plates (6) are provided with locking components that are combined and connected with the test unit; The test unit includes a flow velocity measurement module, a flow disturbance pile simulation module and a dam body test module; The flow disturbance pile simulation module comprises a plurality of mounting seats (7), the mounting seats (7) being connected to measuring blocks (8) via stamping detection parts, the bottom of the measuring blocks (8) being connected to detachable flow disturbance piles (10) via threaded columns (9), and the mounting seats (7) being provided with a plurality of water flow disturbance display components; The flow rate measurement module comprises a mobile measurement component and a fixed measurement component, the fixed measurement component comprises a measurement fixing plate (11), a plurality of pulling visual detection components are evenly arranged on the measurement fixing plate (11), and the mobile measurement component comprises a mobile fixing plate (12), and the mobile fixing plate (12) is connected to a sensor detection component via a horizontal movement component; The dam body test module comprises a dam model and a measuring seat (14) arranged at the bottom of the test tank (3) for measuring the weight of the dam model.

2. A dam-break prevention and control flow disturbance pile test device according to claim 1, characterized in that: The water circulation component comprises a circulation pump (15) arranged in the circulation pool (2); the output end of the circulation pump (15) is connected to the constant pressure water storage chamber (4) via a delivery pipe (16); during the test phase, the delivery pipe (16) ensures that the amount of water in the constant pressure water storage chamber (4) is constant.

3. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: The flow rate regulating assembly comprises an regulating chute (17) provided in the test operating table (1), an inclined pad (18) being arranged in the regulating chute (17), and an inclined protrusion (19) matching the inclined pad (18) being fixedly arranged at the bottom of the test trough (3); The side wall of the test operation table (1) is provided with an adjusting electric push rod (20), the output end of the adjusting electric push rod (20) is fixedly connected to an adjusting support rod, and the adjusting support rod is connected to the inclined pad (18) via a pushing column (22).

4. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: Side grooves (21) are provided on both sides of the test groove (3), and the sliding adjustment plate (6) is located in the side grooves (21) and can change its position on both sides of the test groove (3); The locking assembly comprises a plurality of locking fasteners (23) installed in the test unit, and the sliding adjustment plate (6) is provided with a fastening lock (24) used in conjunction with the locking fasteners (23).

5. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: The stamping detection part comprises a radial connection port (25) opened on the mounting seat (7), the measuring block (8) is slidably arranged in the radial connection port (25), and a pressure sensor (26) for detecting the measuring block (8) is arranged in the radial connection port (25).

6. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: The water flow disturbance display component comprises a plurality of drip tubes (27) arranged on a mounting seat (7), wherein marking display liquids of different colors are arranged in the drip tubes (27), and a sealing plug (28) is arranged at the top of the drip tubes (27).

7. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: The pulling visual detection component comprises a graduated tube (29) arranged on a measurement fixing plate (11), the graduated tube (29) being connected to a graduated plug (30) via a tension spring, and the graduated plug (30) being connected to a water flow damping block (31) via a pulling rope.

8. The dam-break prevention and control flow disturbance pile test device according to claim 1 is characterized in that: The horizontal moving assembly comprises a horizontal sliding groove (32) provided on a moving fixed plate (12), a moving block (33) being slidably arranged in the horizontal sliding groove (32), a progressive electric push rod (34) being arranged on the moving fixed plate (12) for moving the moving block (33), and the sensing detection component comprises a tension sensor (35) arranged on the moving block (33), and the tension sensor (35) is connected to a tension damping block (36) via a tension rope.

9. The dam-break prevention and control flow disturbance pile test device according to claim 1, characterized in that: The sealing connection member comprises an assembly seat (13) arranged on a side wall of the circulation pool (2) relative to the assembly seat (13), the assembly seat (13) being connected to the test tank (3) via a rotating shaft, and the test tank (3) and the circulation pool (2) being connected via a flexible sealing layer.

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