Reservoir dam front vertical water temperature wireless monitoring device

Abstract

A reservoir dam front vertical water temperature wireless monitoring device comprises a dam front monitoring system and a far-end reservoir management system; the dam front monitoring system comprisesa main cantilever beam and a secondary cantilever beam; the secondary cantilever beam is arranged above the main cantilever beam, and a pulley is arranged at the front extending end of the secondarycantilever beam; a secondary cable is connected with one end of a monitoring chain and is wound on a winder, and the other end of the monitoring chain bypasses the pulley and droops outwards; one endof a main cable is connected with the other end of the main cantilever beam, and the other end of the main cable is provided with a lead fish. The reservoir dam front vertical water temperature wireless monitoring device is mature in technology, simple in structure, low in manufacturing cost, convenient to arrange, convenient to operate, low in operation and maintenance cost and convenient to apply and popularize.

Description

technical field [0001] The invention belongs to the technical field of temperature monitoring devices for water conservancy and hydropower engineering and water environment engineering, and in particular relates to a wireless monitoring device for vertical water temperature in front of a reservoir dam. Background technique [0002] The construction of reservoirs is a way of rational development and utilization of water resources, which is of great significance to the promotion of local economic and social development. However, after the reservoir is built to store water, the water level of the original river will be raised, resulting in an increase in water depth, a decrease in flow velocity, and an increase in the area of ​​the water body, which will further change the heat distribution of the water body and form a layered structure of water temperature in the reservoir. [0003] Reservoir water temperature stratification is often accompanied by changes in the distribution ...

AI Technical Summary

Problems solved by technology

[0005] 1. The manual installation of monitoring equipment, buoys or floating platforms does not have the function of automatically monitoring the water level in front of the dam. The water temperature data obtained by it needs to be calculated according to subsequent calculations to obtain the corresponding elevation-water temperature temperature curve. Simultaneous implementation will cause distortion of the elevation-water temperature curve, which is not conducive to scientific research and fine reservoir scheduling

[0006] 2. The monitoring of artificially placed monitoring equipment not only takes a lot of measurement time, but also the monitoring frequency is low, which is not enough to provide high-frequency data. At the same time, because it cannot be automatically measured and transmitted, the timeliness of monitoring data is poor. On the one hand, it cannot satisfy reservoir managers. Or the needs of scientific research personnel in reservoir management and reservoir water temperature change characteristics research, on the other hand, it is not conducive to the daily management and operation scheduling of the reservoir

[0007] 3. Manual monitoring and installation of buoys or floating platforms are easily affected by wind and waves in front of the dam, which not only easily leads to damage or loss of equipment, but also carries out safety risks for personnel working on water under bad weather conditions.

[0008] 4. The monitoring method installed on buoys or floating platforms is easily affected by water level fluctuations, wind waves, and flow fields in front of the dam, which leads to the formation of a parabolic shape in the monitoring chain, directly causing errors in the monitoring results of the vertical water temperature structure

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