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Intelligent flow velocity measuring device and river flow measuring method

A flow velocity measurement and intelligent technology, applied in the direction of measuring flow/mass flow, measuring device, fluid velocity measurement, etc., can solve the problems of low accuracy of measurement results, distortion of measurement data, large errors, etc., and avoid water body utilization and insufficient protection Effect

Active Publication Date: 2020-12-01
四川嘉纳环保咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of low accuracy of measurement results in the existing technology of river channel flow measurement, the application provides an intelligent flow velocity measurement device and a river flow measurement method, which are used to improve the measurement accuracy of river channel flow velocity and at the same time aim at different locations of the river channel Sampling of measurement points at different depths, and then calculating the distribution of different flow velocities on the entire river cross-section by means of integration, avoiding the problems of very large errors and distortion of measurement data caused by average value estimation in the prior art

Method used

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  • Intelligent flow velocity measuring device and river flow measuring method
  • Intelligent flow velocity measuring device and river flow measuring method
  • Intelligent flow velocity measuring device and river flow measuring method

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Embodiment 1

[0066] In this embodiment, the intelligent flow velocity measurement device provided by the present invention will be described in detail in combination with the accompanying drawings of the specification, and Figure 1-6 As shown, it specifically includes a front shell 4 and a rear shell 3 that are detachably and airtightly connected to form a streamlined outer shell, so that the entire outer shell can reduce fluid resistance as much as possible underwater, and at the same time further improve the stability of the measuring device. Avoid swaying or rolling problems caused by uneven resistance. The sealing ring 5 is squeezed and sealed between the front shell 4 and the rear shell 3 . The first bushing 2 integrally connected with the smaller end of the tapered rear casing 3 drives the rotating propeller 1 through the water flow, and the propeller 1 is axially fixedly connected with a transmission shaft 104, and the transmission shaft 104 is connected to the The first casing 2 ...

Embodiment 2

[0070] As a preferred embodiment of the present invention for the structure of the measuring device, on the basis of Embodiment 1, further combined with the description attached Figure 1-6 , Figure 12 and 13 As shown, the hinge mechanism includes a bracket 8 fixedly connected to the rear housing 3, a hinge 15 rotatably connected to the bracket 8 for accommodating and retracting the wire harness, and a speed reducer connected to the hinge 15 in turn. 10 and the motor 9 that is used to drive the hinge plate 15 forward / reversely to take in and out the wire. When it is necessary to perform the action of setting out the wire, since the measuring device itself has buoyancy, the motor 9 only needs to output a small power to complete it; The buoyancy and the frictional resistance generated by the wire harness, therefore, the torque output that meets the conditions is required to normally adjust the wire take-up and realize the measurement device to dive to a greater depth. The ad...

Embodiment 3

[0077] The present invention also provides a river flow measurement method, which is realized based on the above-mentioned intelligent flow velocity measurement device based on the multi-point flow velocity measurement of the cross-section of the river. Figure 7-11 And the structure and principle provided in embodiment 2, it specifically adopts the following measurement steps to realize:

[0078] Step ST100 Determine the cross-section of the river to be measured, and mark the start point A and the end point B on both sides of the cross-section to be measured; where the start point A is the starting point, and the end point B is the recovery point.

[0079] Step ST200 Prepare the measurement tool, bind the free end of the wire harness wound on the hinge mechanism with the metal ball firmly, and control the length of the wire harness within 17cm. Of course, if the silt of the river bed to be measured is deep, or even greater than 17cm, it can be extended appropriately The length ...

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Abstract

The invention discloses an intelligent flow velocity measuring device, which comprises an outer shell body which is detachably and hermetically connected to form a streamline shape, wherein a propeller is driven by water flow to rotate and drive a connected power generation mechanism; the power generation mechanism is electrically connected with a circuit board used for detecting voltage generatedby the power generation mechanism, converting the voltage into flow velocity data and storing the flow velocity data; and the circuit board is further connected with a control terminal. The inventionfurther provides a river flow measuring method, which obtains low velocity distribution of the river cross section by means of the intelligent flow velocity measuring device, and calculates precise flow. According to the river flow measuring method provided by the invention, the riverbed depths at different positions can be obtained through using the intelligent flow velocity measuring device, the contour of the whole riverbed is obtained in a multi-point sampling mode, and precise flow data of the riverway is obtained by combining the depths of sampling measurement points and actual flow velocity distribution of flow velocity information on the cross section of the riverway, so that the problem of insufficient water utilization and protection caused by flow measurement distortion is avoided.

Description

technical field [0001] The present invention relates to the field of river flow measurement methods, in particular to the field of precise measurement methods for river flow, and in particular to a method for establishing river flow measurement for river flow velocity measurement based on an intelligent flow velocity measurement device. Background technique [0002] Water body flow monitoring is of great significance to the rational and full utilization and protection of water bodies. Most of the results of existing flow measurement methods are based on estimation, and the error between the measured value and the actual value is relatively large, especially for the measurement of realistic irregular river flow. The measurement methods in the prior art can be roughly divided into three categories : [0003] The first type is to monitor the flow and water level through hydrological stations to obtain the water level, water quality and flow conditions of river channels in diff...

Claims

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Application Information

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IPC IPC(8): G01P5/00G01F1/00
CPCG01F1/00G01P5/00
Inventor 蒋祖斌肖娟梁时军
Owner 四川嘉纳环保咨询有限公司
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