Device for measuring water temperature and flow velocity distribution of large-velocity rivers used by ships in the field and its application method

Abstract

The invention discloses a large-flow-velocity river water temperature and flow velocity distribution measurement apparatus for a field boat and a using method thereof. The measurement apparatus is composed of a pedestal, a measuring instrument fixation and protection device, a temperature pressure sensor, a flow velocity probe, a telescopic support floral tube and a depth control system. Comparedwith the prior art, the measurement apparatus has the following advantages: multi-measuring-point multi-depth river water temperature and flow velocity distribution measurement is realized on the high-flow-velocity condition; under remote control of an automatic coil contraction-releasing rotating wheel, a steel strand drives the telescopic support floral tube to make contraction and releasing soas to detect water temperatures and flow velocities at different depths; on the basis of the water permeability of the telescopic support floral tube, the water flow resistance is reduced effectivelyand the good support effect is realized; high stability of the probe connected to the floral tube is ensured; the measurement apparatus has characteristics of simple operation, high efficiency, high monitoring accuracy, and high adaptability; the technical means is provided for monitoring of the field large-flow-velocity river way, especially the tail water temperature and flow velocity of the hydropower station; and the reference is provided for the ecological system changing of the tail river way of the hydropower station and the agricultural diversion irrigation.

Description

technical field [0001] The invention relates to the technical fields of hydraulics and river dynamics, in particular to a large-velocity river water temperature and flow velocity distribution measuring device for field ships and a use method. Background technique [0002] In recent years, with the rapid development of the water conservancy industry, more and more large reservoirs have been established to provide abundant clean energy for economic development. At the same time, the establishment of large-scale reservoirs has led to obvious stratification of water body temperature, and the low-temperature water from reservoirs used by power stations has had varying degrees of impact on downstream river water quality, river ecology, agricultural irrigation, and industrial production. Therefore, it is of great significance to clearly monitor the water temperature and flow velocity information of the downstream river of the hydropower station under the condition of high flow velo...

AI Technical Summary

Problems solved by technology

However, the tail water of the hydropower station still contains huge energy, and the flow velocity is high. The conventional monitoring device is easily washed by the high-speed water flow, causing it to deviate from the measurement area, resulting in large errors in monitoring data; and the high-speed water flow carries stones and gravel It is easy to cause damage or even loss of the data acquisition probe

At present, the field river water temperature and flow velocity distribution detection device is greatly affected by the flow velocity, and the degree of automation is not high. At the same time, the operation is cumbersome and requires repeated labor.

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