Tide simulation device

Abstract

The utility model relates to the technical field of tide simulation equipment, and provides a tide simulation device which comprises a left side connecting box, a left side steady flow gate, an experiment section, a right side steady flow gate and a right side connecting box which are connected in sequence, the experimental section is filled with experimental sand; a left side connecting pipe is installed on the front wall or the rear wall of the left side connecting box and connected with a left side wave making pump, and the left side wave making pump is connected with a middle connecting pipe; a right side connecting pipe is mounted on the front wall or the rear wall of the right side connecting box, and the right side connecting pipe is connected with a right side wave making pump; and the right side wave making pump is connected with the middle connecting pipe. According to the utility model, a large-scale closed annular water tank is adopted, so that a large-scale model test can be carried out, and a flowing condition close to an actual extreme sea condition can be formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tidal simulation equipment technical field especially relates to a simulation tidal device. BACKGROUND

[0002] At present, the scientific research work about local silt scouring and foundation stability of seabed structure mainly relies on physical model test. For the model test involving silt movement, the geometric scale of silt particles is difficult to reduce, otherwise the mechanical properties of silt bottom will be changed, at this time, large-scale test must be carried out by using prototype sand to reduce the scale effect in the test. For silt transport process, there is no model scaling method that can simultaneously meet the simulation of bed load transport and suspended load transport process because they correspond to different flow characteristics.

[0003] The existing simulation tidal device generally uses a tidal simulation pool, sets a liquid supplementing assembly in communication with the tidal simulation pool for pumping liquid to the tidal simulation pool, and sets a driving assembly for periodic up-down movement to simulate tide. However, such simulation tidal device cannot provide large flow rate condition and ignores the influence of silt in the tidal process, which is quite different from the natural environment condition tide, and cannot be carried out under the condition of using prototype sand, so as to accurately simulate the natural environment condition tide working condition, cannot study the local scouring problem caused by extreme wave and flow, and affects the accuracy of test results.

[0004] For the local scouring problem caused by extreme wave and flow, the dominant sediment transport mode is suspended load transport. For prototype sand, the existing conventional water tank is almost impossible to provide such a large flow rate condition, and the most practical and feasible way to solve the difficulty in model scale is to carry out large-scale model test. INVENTION CONTENTS

[0005] The utility model mainly solves the technical problems that the simulation tidal device of prior art cannot provide large flow rate condition and ignores the influence of silt in the tidal process, which is quite different from the natural environment condition tide, so as to accurately simulate the natural environment condition tide working condition, and proposes a simulation tidal device, which adopts a large closed ring-shaped water tank and can be used to carry out large-scale model test and can form flow condition close to actual extreme sea condition.

[0006] The utility model provides a simulation tidal device, which comprises left side connecting box, left side steady flow grid, experiment section, right side steady flow grid and right side connecting box which are connected in sequence.

[0007] The experiment section is filled with experimental sand.

[0008] The left connecting pipe is installed on the front wall or the back wall of the left connecting box, and the left connecting pipe is connected with a left wave making pump, and the left wave making pump is connected with the middle connecting pipe;

[0009] The right connecting pipe is installed on the front wall or the back wall of the right connecting box, and the right connecting pipe is connected with a right wave making pump, and the right wave making pump is connected with the middle connecting pipe.

[0010] Preferably, the left wave making pump is connected with the left driving motor through the first coupling;

[0011] The right wave making pump is connected with the right driving motor through the second coupling.

[0012] Preferably, the left driving motor and the right driving motor are electrically connected with the control box respectively.

[0013] Preferably, the left connecting pipe is provided with a left pressure gauge;

[0014] The right connecting pipe is provided with a right pressure gauge.

[0015] Preferably, the left connecting box, the left flow stabilizing grid, the experimental section, the right flow stabilizing grid and the right connecting box are respectively provided with sealing covers.

[0016] Preferably, the experimental section comprises a plurality of experimental box bodies.

[0017] Preferably, the front wall and / or the back wall of the experimental box body is provided with a transparent tempered glass.

[0018] The simulation tide device provided by the utility model, the experimental section, the connecting boxes and the flow stabilizing grids are designed in a sectional mode, the number of sections can be increased or decreased according to requirements, different experimental requirements can be met, and installation and use are flexible and convenient. A large closed ring-shaped water tank is adopted, the size is large and the strength is high, more than 100 tons of water bodies can be carried, the pulsating pressure caused by the uniform flow and the large amplitude oscillation flow of the water bodies can be borne, and large flow velocity conditions can be provided. The experimental section is provided with experimental sand, and the sand simulates the mud sand in the tide process. The flow stabilizing grids are arranged on the left and right sides of the experimental section, the water bodies conveyed through the connecting boxes become turbulent after 90-degree turning, the water bodies are made uniform and same after passing through the flow stabilizing grids before entering the experimental section, and the experiment is controllable. Large scale simulation experiments can be carried out, and the flow conditions close to actual extreme sea conditions can be generated. The utility model can be used for experimental research on the local scouring, stability and dynamic coupling response of the seabed structure and the seabed under strong storm conditions under large scale conditions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the top view of the simulation tide device provided by the utility model;

[0020] Figure 2 is Figure 1 schematic view of the k direction.

[0021] Figure: 1, left side connection box; 2, left side steady flow grid; 3, experimental section; 4, right side steady flow grid; 5, right side connection box; 6, left side connecting pipe; 7, left side drive motor; 8, left side wave making pump; 9, middle connecting pipe; 10, right side wave making pump; 11, right side connecting pipe; 12, right side drive motor; 13, control box; 14, left side pressure gauge; 15, right side pressure gauge. DETAILED DESCRIPTION

[0022] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the utility model will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, not to limit the utility model. In addition, it needs to be explained that in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all the contents.

[0023] As Figures 1-2 shown, the utility model embodiment provides a kind of simulation tidal device, comprising: left side connection box 1, left side steady flow grid 2, experimental section 3, right side steady flow grid 4 and right side connection box 5 connected in sequence.

[0024] Experimental sand is loaded in the experimental section 3. The experimental section 3 includes multiple experimental box bodies. The front wall and / or rear wall of the experimental box body is provided with transparent tempered glass, to ensure transparent visibility during experiment, so that experiment personnel can master experiment progress and state in real time.

[0025] The device size of the utility model is huge, experimental section 3, each connection box and steady flow grid are designed into segmented type, corresponding number of segments can be increased or decreased according to needs, to meet different experimental needs, facilitate installation and use. Left side connection box 1, left side steady flow grid 2, experimental section 3, right side steady flow grid 4 and right side connection box 5 are respectively provided with sealing cover.

[0026] Left side connecting pipe 6 is installed on the front wall or rear wall of left side connection box 1, left side connecting pipe 6 is connected with left side wave making pump 8, left side wave making pump 8 is connected with middle connecting pipe 9; right side connecting pipe 11 is installed on the front wall or rear wall of right side connection box 5, right side connecting pipe 11 is connected with right side wave making pump 10; right side wave making pump 10 is connected with middle connecting pipe 9.

[0027] Left side pressure gauge 14 is arranged on left side connecting pipe 6; right side pressure gauge 15 is arranged on right side connecting pipe 11.

[0028] The left wave making pump 8 is connected with the left driving motor 7 through a first coupling, and the right wave making pump 10 is connected with the right driving motor 12 through a second coupling.

[0029] The left wave making pump 8 and the right wave making pump 10 of the utility model adopt bidirectional horizontal axial flow pumps, can provide flow medium with large flow, low lift (3m 3 / s in positive direction, 2.93m 3 / s in reverse direction, 3.5m in lift), can switch the direction in a short time and keep the flow and the lift basically consistent, and can simulate the tidal flow characteristics of the actual extreme sea conditions.

[0030] The simulation tidal device adopts a large closed ring-shaped water tank, has large size and high strength, can bear water body of more than 100 tons, and can bear the pulsating pressure brought by the 3.0m / s uniform flow and the large amplitude oscillation flow motion of the part of water body (when the period is 5s, the speed amplitude is 1.0m / s; when the period is 13s, the speed amplitude is 2.5m / s). The left and right sides of the experimental section 3 are provided with flow stabilizers, the water body conveyed through the connecting box will become turbulent after a 90° turn, and the water body flow is uniform and the same after passing through the flow stabilizers before entering the experimental section, so that the experiment is controllable. The utility model can be used for carrying out the research on the local scouring, stability and dynamic coupling response problem of the seabed structure and the seabed under strong storm conditions under the large scale condition.

[0031] The assembly process of the simulation tidal device:

[0032] 1. According to the construction drawing, embed the anchor bolt in advance according to the requirements.

[0033] 2. Place the experimental section 3 in the site and fix it with anchor bolts; connect the left flow stabilizer 2 to the experimental section 3, fix it with bolts, and then fix it with anchor bolts; connect the right flow stabilizer 4 to the experimental section 3, fix it with bolts, and then fix it with anchor bolts.

[0034] 3. Connect the left connecting box 1 to the left flow stabilizer 2, fix it with bolts, and then fix it with anchor bolts; connect the right connecting box 5 to the right flow stabilizer 4, fix it with bolts, and then fix it with anchor bolts.

[0035] 4, the left side connecting pipe 6 is connected to the left side connecting box 1, and is fixed by bolt connection; the right side connecting pipe 11 is connected to the right side connecting box 5, and is fixed by bolt connection.

[0036] 5, the left side wave making pump 8 is connected to the left side connecting pipe 6, and is fixed by bolt connection, and the pump is fixed by anchor bolt; the right side wave making pump 10 is connected to the right side connecting pipe 11, and is fixed by bolt connection, and the pump is fixed by anchor bolt.

[0037] 6, the middle connecting pipe 9 is connected to the left side wave making pump 8 and the right side wave making pump 10, and is fixed by bolt connection.

[0038] 7, the left side drive motor 7 is connected with the left side wave making pump 8 through the first coupling, the first coupling runout value is adjusted according to requirements, then the left side drive motor 7 is fixed by anchor bolt; the right side drive motor 12 is connected with the right side wave making pump 10 through the second coupling, the second coupling runout value is adjusted according to requirements, then the right side drive motor 12 is fixed by anchor bolt.

[0039] 8, the left side drive motor 7, the right side drive motor 12 and the control box 13 are connected through cable.

[0040] 9, the customized toughened glass is bonded to the side wall of the experimental section 3, and the toughened glass is leveled, so that it is flush with the wall of the steady flow grid.

[0041] 10, the experimental sand is filled into the experimental section; the experimental equipment is placed in the experimental section 3, and the simulation tide device is injected with sufficient water, the sealing covers of each connecting section and the experimental section 3 are connected to the respective box bodies, and are fixed by bolt; after the operation parameters of the pump are set, the left side wave making pump 8 and the right side wave making pump 10 are started, and the simulation tide is carried out.

[0042] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments are modified, or part or all of the technical features are replaced equivalently, without making the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A simulated tide apparatus, characterised in that, The utility model relates to a sand wave making device for sand wave experiment, which comprises: a left connecting box (1), a left steady flow grid (2), an experimental section (3), a right steady flow grid (4) and a right connecting box (5) connected in sequence; the experimental section (3) is provided with experimental sand; a left connecting pipe (6) is arranged on the front wall or the back wall of the left connecting box (1), the left connecting pipe (6) is connected with a left wave making pump (8), and the left wave making pump (8) is connected with a middle connecting pipe (9); a right connecting pipe (11) is arranged on the front wall or the back wall of the right connecting box (5), the right connecting pipe (11) is connected with a right wave making pump (10), and the right wave making pump (10) is connected with the middle connecting pipe (9).

2. The simulated tide device of claim 1, wherein, The left wave making pump (8) is connected with a left driving motor (7) through a first coupling; the right wave making pump (10) is connected with a right driving motor (12) through a second coupling.

3. A simulated tide apparatus according to claim 2, wherein, The left driving motor (7) and the right driving motor (12) are electrically connected with a control box (13) respectively.

4. The simulated tide device of claim 1, wherein, A left pressure gauge (14) is arranged on the left connecting pipe (6); a right pressure gauge (15) is arranged on the right connecting pipe (11).

5. The simulated tide device of claim 1, wherein, Sealing covers are arranged on the left connecting box (1), the left steady flow grid (2), the experimental section (3), the right steady flow grid (4) and the right connecting box (5) respectively.

6. The simulated tide device of claim 1, wherein, The experimental section (3) comprises a plurality of experimental box bodies.

7. A simulated tide apparatus according to claim 6, wherein, Transparent tempered glass is arranged on the front wall and / or the back wall of the experimental box body.

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