Variable slope water flow movement locus tester with water and sand separation function

Abstract

The invention discloses a variable slope water flow movement locus tester with a water and sand separation function. The variable slope water flow movement locus tester comprises a frame, an overturning platform, a collecting tank and a driving device for driving the overturning platform to rotate. According to the variable slope water flow movement locus tester, a drawing operation space is designed on the overturning platform, an operator can conduct plotting through a drawing passage, and the plotting conformance of simulating the flow path and track of river flow is improved. The overturning platform further can be driven by the driving device to rotate, the water flow movement of rivers with different slopes can be simulated, and the problem of natural sloping simulation of differentrivers and different river reaches is solved. In addition, the collecting tank with the water and sand separation function is further designed. Through the variable slope water flow movement locus tester, the variation problem of river sloping can be effectively solved, the plotting conformance of the river flow path and track is improved, water and sand separation of testing water is achieved, and recycling is achieved. The variable slope water flow movement locus tester is simple in structure, low in cost and widely applicable to hydraulic engineering simulation testing.

Description

technical field [0001] The invention relates to the technical field of hydraulic and river engineering model tests, in particular to a variable slope water flow trajectory tester with the function of separating water and sand. Background technique [0002] When analyzing the engineering impact of related practice projects or carrying out related special research, the field of water conservancy often needs to refine the flow path and track of water flow under the conditions of water flow, river channel evolution, flood evolution, vertical and horizontal erosion of rivers, etc. test. At the same time, it will also deeply understand and analyze whether the project construction will bring adverse effects on the natural environment of the relevant rivers, and analyze whether the flow and scour of the water flow will affect the operation safety of the water conservancy project buildings. [0003] Use the river engineering model hall to build a physical model. Since the slopes of ...

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Problems solved by technology

[0003] Use the river engineering model hall to build a physical model. Since the slopes of the river courses are different in different sections of different rivers, it is necessary to use cement, mortar, concrete and other materials to build the river bed. The project cost is high, time-consuming, and material consumption is serious.

Using glass water tanks for experiments can effectively solve the problem of river slope changes, but since the length of the water tanks is usually tens of meters and the width is only a few meters, for the winding rivers with large curvature that widely exist in the natural objective world, it is difficult It is inconvenient in the similarity simulation of water flow, and it is difficult to simulate a series of changes in water flow, such as horizontal erosion, top flushing, erosion, and widening, and the applicability is insufficient

Moreover, whether it is the physical model of the river engineering model hall or the glass tank, there is the problem of how to accurately plot the river flow path and trajectory

[0004] At the same time, the traditional river engineering model needs to use the pumping circulation system to realize the circulation and transmission of water and sand in its test. The equipment cost is high, the test cost is high, the maintenance cost is high, and the test is inconvenient.

In addition, in this type of water-sand circulation test device, although there is a sedimentation tank at the water outlet of the device, a large amount of sediment still flows into the return channel along with the water flow, resulting in muddy water with sand in the entire circulation flow path

The circulating water contains a lot of sediment, and the water and sand are not separated. During the flow of water and sand, it will cause wear to the circulating pipeline system, greatly reduce the service life, and pollute the environment.

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