High-precision detection device for river discharge

Abstract

The invention discloses a high-precision detection device for river discharge. The key point of the technical scheme is as follows: the high-precision detection device for river discharge comprises acurrent meter, the current meter comprises a detection head, as well as a reference frame fixedly installed in a cross section of a river, a detection platform is arranged above the reference frame, afirst floating plate is arranged in the reference frame below the detection platform, the width of the first floating plate is the same as an inner-frame width of the reference frame, a connecting piece is arranged between the detection platform and the first floating plate, and the first floating plate can adaptively move along the vertical direction according to the water level in the river; and the detection head is located below the first floating plate. Through the detection device, the personnel can accurately calculate the cross-sectional area of river water, and the detected river discharge is relatively accurate; by disposing the first floating plate, a mesh plate and a second floating plate, water surface waves can be reliably reduced, and the surface energy of the water is relatively flat, and the accuracy of measuring the cross-sectional area of the river is improved; and by disposing multiple detection heads, comprehensive detection can be performed on the flow velocitiesat various locations on the cross section of the river, and the accuracy of measuring the flow velocity of the river is improved.

Description

technical field [0001] The invention relates to a detection device, in particular to a high-precision detection device for river flow. Background technique [0002] The detection of river flow can provide an important reference for downstream irrigation and flood warning, and it can also allow personnel to evaluate the river water volume during drought, providing a reference for deciding whether to use artificial rainfall and intermittent water supply. [0003] Existing river flow detection mostly uses the flow meter method. First, measure and calculate the cross-sectional area of ​​the river water on the measurement section (generally refers to the cross-sectional area in the vertical direction), measure the water depth at each vertical line and set up a flow meter, and pass the flow velocity The meter measures the flow velocity at one to several points, and the average flow velocity of the section is obtained after averaging. The river discharge is obtained by the product...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: in most cases, the river water does not flow smoothly, and the surface of the river water will produce undulating waves, which will cause personnel to be inaccurate in measuring the cross-sectional area of ​​the river water. Ultimately, the detected river flow is not accurate enough

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