Straight circulation water tank device for simulating resuspension of sediment under action of reversing currents

A straight water tank and sediment technology, which is used in measurement devices, fluid dynamics tests, and testing of machine/structural components. problem, to achieve the effect of convenient sampling and convenient water flow conditions

Inactive Publication Date: 2014-10-01
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The triangular bottle type and the straight pipe type have considerable limitations due to their limited volume, and their hydrodynamic disturbance mechanism is quite different from the actual situation, and cannot reflect the flow field of the real water body and the resuspension and release of sediment pollutants. Therefore, the quantitative relationship between hydrodynamics-sediment resuspension-pollutant release cannot be studied
The simulated environment of straight trough is close to that of natural water body, but it generally flows in one direction, which cannot be realized in th

Method used

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  • Straight circulation water tank device for simulating resuspension of sediment under action of reversing currents
  • Straight circulation water tank device for simulating resuspension of sediment under action of reversing currents
  • Straight circulation water tank device for simulating resuspension of sediment under action of reversing currents

Examples

Experimental program
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Effect test

Embodiment 1

[0017] see Figure 1~Figure 4 , the circulating straight flume device for simulating sediment resuspension under the action of reciprocating flow, including long straight flume, two-way water supply and drainage piping system, water flow dynamics and control device, and flow rate measurement and sampling device. It is characterized in that the long straight water tank is connected to the water flow power and control device through a two-way water supply and drainage pipeline system, and a flow rate measurement and sampling device is fixedly installed on the side wall of the long straight water tank; the water flow, power and control device provides power for the water flow And control the flow rate and flow direction, provide reciprocating water flow for the long straight tank through the double-sided water supply and drainage pipeline system, and realize the sediment resuspension.

Embodiment 2

[0019] This example is basically the same as Example 1, the special features are:

[0020] The pipeline system for two-way water supply and drainage includes a forward water inlet pipeline, a forward drainage pipeline, a reverse water inlet pipeline, a reverse drainage pipeline and a main drainage pipeline. The two ends of the straight water tank are connected to the water tank through a main drain pipe. The forward water inlet pipe and the reverse water inlet pipe are respectively connected to the water tank from both ends of the long straight water tank through a main water inlet pipe.

[0021] The bottom and frame of the long straight water tank are of steel structure and the side walls are rectangular glass walls. The flow rate and sampling device are fixed on the frame steel frame in the middle of the long straight water tank, including a speedometer fixing frame and a sampling device fixing frame. There are slide rails and screw rods on the two fixing frames, ver...

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Abstract

The invention relates to a straight circulation water tank device for simulating resuspension of bottom mud sediment under the action of reversing currents. The straight circulation water tank device comprises a long and straight water tank, a bidirectional water supplying and discharging pipeline system, a water current power and control device and a flowing speed measuring and sampling device, wherein the long and straight water tank is connected with the water current power and control device through the bidirectional water supplying and discharging pipeline system, and the flowing speed measuring and sampling device is fixedly installed on the edge of the wall of the long and straight water tank, the water current power and control device provides power for water currents and controls the flowing speed and the flowing direction, the reversing currents are provided for the long and straight water tank through the bidirectional water supplying and discharging pipeline system, and thus resuspension of the sediment is achieved. The straight circulation water tank device has the advantages that the ups and downs and the resuspension of bottom mud under the action of the tide reversing currents in tidal reach can be simulated truly, and water samples at different depths can be collected under a certain hydraulic condition. The straight circulation water tank device is suitable for studying of quantitative relation among water, sediment and pollutants and is an effective device for studying the resuspension release effect of bottom mud pollutants in a river mouth area.

Description

technical field [0001] The invention relates to a circulating straight water tank device for simulating sediment resuspension under the action of reciprocating flow, which belongs to the technical field of water conservancy engineering and environmental engineering, and specifically relates to the simulation of resuspension and release of sediment pollutants in water environment under hydrodynamic disturbance. Especially in the reciprocating flow of the estuary affected by the tide, the resuspension of polluted sediments under different flow rates and different periodic disturbances simulates the circulating straight water tank device. Background technique [0002] Bottom sediment in the estuary area is generally viscous fine-grained sediment, which is the main carrier of pollutants such as heavy metals and organic matter. With the long-term input of exogenous pollutants, sediments have become an important destination and main reservoir of pollutants. The sediment-water int...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 王道增朱红伟钟宝昌程鹏达郭加宏樊靖郁
Owner SHANGHAI UNIV
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