Device and method suitable for measuring vertical turbulence of water flow of reservoir bays
A measuring device and vertical technology, applied in hydraulic models and other directions, can solve the problem of not having the ability of prototype to observe the vertical turbulence characteristics of water flow and its specific values, so as to ensure water quality and water environment, rapid acquisition, wide The effect of the application foreground
Active Publication Date: 2014-01-08
CHINA YANGTZE POWER +1
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However, it should be pointed out that although these existing technologies can partially realize the measurement of flow velocity and flow field distribution, none of them have the ability to prototype the vertical turbulent characteristics of water flow and its specific values.
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[0040] Example: such as figure 1 As shown, a water flow vertical turbulence measurement device suitable for reservoir bays, including a fixed plate 1, a support platform 2, a central controller 3, a connecting rod 4, a measuring frame 5, a video sensor 6, an illumination source 7, a background Screen 8, bubble generator 9, ventilation needle 10, clamping device 11, ventilation pipe 12, the size of the support platform 2 is 500mm × 500mm, the central controller 3 is placed on the horizontal support platform 2, the central The controller 3 adopts the MCS-51 single-chip microcomputer, which can process the image and record the displacement of the air bubbles in a known time interval, thereby obtaining the motion velocity of the particle, which can be used in the present invention to obtain the motion data of the air bubbles in the measured water flow field In addition, the central controller 3 also controls the operation of the measuring device, which can be manually operated thr...
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The invention discloses a device for measuring vertical turbulence of water flow of reservoir bays. A central controller is disposed on a horizontal support platform, a connecting rod with the bottom fixed on a measuring bench vertically penetrates through the support platform, a background screen is arranged on one side of the measuring bench, a video sensor is arranged on the other opposite side, a lighting source is fixed on the video sensor, a group of air needles are mounted at the lower edge of the background screen, and a bubble generator is connected with the air needles through air pipes. The device achieves measurement on vertical turbulence of the water flow of the reservoir bays, key bases are provided for predication of algal blooms of the reservoir bays by measurement of vertical turbulence indexes of the water flow of the reservoir bays, water quality and water environment of the reservoir bays are guaranteed beneficially, and harm of the algal blooms is avoided.
Description
technical field [0001] The invention belongs to the technical field of water conservancy measurement, and in particular relates to a water flow vertical turbulence measurement device and method suitable for reservoir bays. Background technique [0002] Vertical turbulence of water flow is an important hydraulic property of water body movement. In order to better use and protect the water environment rationally, and accurately predict the water environment quality of rivers, lakes and reservoirs, it is necessary to conduct in-depth research on the characteristics of water flow turbulence, so as to gain an in-depth understanding of the migration and diffusion of pollutants in water bodies, and accurately calculate water quality. Environmental capacity and allowable amount of pollutants. In particular, once the tributary of the reservoir forms a relatively closed tributary bay after impoundment, it is easy to cause eutrophication and algal blooms. For the conditions of algal ...
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IPC IPC(8): E02B1/02
Inventor 戴会超张培培毛劲乔蔡庆华蒋定国龚轶青
Owner CHINA YANGTZE POWER