River channel type automatic water temperature monitoring device and method suitable for complex water flow condition

Abstract

The invention provides a river channel type automatic water temperature monitoring device and method suitable for complex water flow conditions, the device comprises a floral tube with the upper end and the lower end closed, the floral tube is fixed on a river channel bank slope through a fixing frame, a buoy body is arranged in the floral tube, a temperature probe is arranged at the bottom of the buoy body, and a temperature acquisition instrument is arranged at the upper end of the floral tube. The temperature probe is connected with a temperature acquisition instrument through a cable, the lower end of the floral tube is provided with a through hole for the temperature probe to penetrate out, and the upper end of the floral tube is provided with a wire hole for the cable to penetrate out. The device and the method can be suitable for water temperature monitoring of seasonal rivers or water areas with large water level amplitude variation and high water flow velocity at tail water outlets of power stations, can be installed and overhauled at any time, and are wide in application range.

Description

technical field [0001] The invention relates to the field of real-time monitoring of water temperature, in particular to a water temperature monitoring device and method in waters with large water level fluctuations and high flow velocity in "V"-shaped narrow and deep river channels and tail water outlets of power stations. Background technique [0002] Water temperature is a key indicator reflecting the health of river water bodies. Changes in water temperature will lead to changes in the aquatic environment of the reservoir, thereby affecting the growth and reproduction of other aquatic animals and plants. Due to the influence of seasonal floods or power station regulation and storage, the "V"-shaped narrow and deep river channels in the southwestern mountainous area and the outlet of the tail water of the power station often have large water level fluctuations. The conventional fixed water temperature measurement method cannot well capture the surface water temperature of ...

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Problems solved by technology

The device is simple in structure and easy to use. When the water flow rate is small, the floating online water quality monitoring device can be stably floated on the water surface for monitoring, but when the water flow rate is large, the device may be damaged by the impact of the water flow.

In the case of "V"-shaped narrow and deep rivers in the southwestern mountainous area and large fluctuations in the water level at the tail water outlet of the power station, the traditional fixed temperature measurement method cannot meet the requirements of the water temperature measurement specification. In order to be able to measure the surface water temperature data of the water flow, a floating method is adopted. becomes more important

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