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A device for measuring river flow velocity in an environmental flow determination system

An environmental flow, measuring device technology, applied in the direction of measuring fluid velocity using thermal variables, can solve problems such as affecting the accuracy of flow velocity measurement, clogging of flow velocity sensors, etc., to achieve accurate calculation of water temperature changes, reduce measurement errors, and increase measurement. area effect

Active Publication Date: 2018-07-24
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the flow meter is usually installed directly at the bottom of the river to measure the flow velocity, which can easily cause the flow velocity sensor to be blocked by silt and affect the accuracy of flow velocity measurement.

Method used

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  • A device for measuring river flow velocity in an environmental flow determination system
  • A device for measuring river flow velocity in an environmental flow determination system
  • A device for measuring river flow velocity in an environmental flow determination system

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Embodiment Construction

[0044] In order to facilitate those skilled in the art to understand the technical solutions and beneficial effects of the invention, the specific implementation methods are described below in conjunction with the accompanying drawings.

[0045] like figure 1 As shown, the detection device of river flow velocity includes:

[0046]A first fixed rod 1, a second fixed rod 2, a fixed rope 3, a pulley 4, a transmission rope drum 5, a transmission rope 6, a weight 7, an electric resistance wire 8, a temperature sensing plate 9 , a motor 10 , a power supply 11 and a statistical unit 12 . The first fixed rod 1 and the second fixed rod 2 are respectively placed on both sides of the river bank and fixed, and the two ends of the fixed rope 3 are respectively fixed on the top of the first fixed rod 1 and the second fixed rod 2 Contiguously, the pulley 4 is located on the fixed rope 3 and can slide on the fixed rope 3 . The transmission rope 6 passes through the pulley 4 , one end goes ...

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Abstract

The invention discloses a river flow velocity measuring apparatus in an environmental flow determination system. The river flow velocity measuring apparatus comprises a first fixing rod, a second fixing rod, a fixing rope, a pulley, a transmission rope roller, a transmission rope, a motor, a counterweight, a heating resistance wire, a temperature sensor plate, and a statistic unit. The heating resistance wire and the temperature sensor plate are fixed to the transmission rope. River water flows past the heating resistance wire and the temperature sensor plate. A power supply is connected with the heating resistance wire through the transmission rope. The temperature of the heating resistance wire is constant. The temperature sensor plate is connected with the statistic unit through the transmission rope. The statistic unit receives a water temperature signal and a time interval signal transmitted from the temperature sensor plate, and sends a river flow velocity signal. The river flow velocity measuring apparatus uses the spiral heating resistance wire and the water flow direction is arranged in the axis of the heating resistance wire such that the river flow velocity measuring apparatus has little influence on water flow velocity and reduces measurement errors.

Description

technical field [0001] The invention relates to a device for measuring water flow velocity, in particular to a device for measuring river channel flow velocity in an environment flow determination system. Background technique [0002] Studies have shown that the hydrological process is the main driving force of the flow geomorphology process and plays an important role in controlling the river channel geomorphology. The geomorphic process of the river channel is the main controlling factor of the flow habitat structure, and the geomorphic process such as sediment deposition and bank erosion has important ecological significance. The geomorphic process of the river course also affects people's development and utilization of water flow and along the coast, such as bridge repair, navigation, sand dredging, flood control, etc. The hydrological process of water flow interacts closely with the geomorphic process and ecological process, so it is of great significance to consider t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/10
Inventor 张远王丁明贾晓波高欣胡春明刘思思马淑芹
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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