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Real-time monitoring device and method for vertical water temperature in front of dam of large deep reservoir

A real-time monitoring and reservoir technology, applied in measurement devices, temperature measurement of moving fluids, thermometers, etc., can solve the problems of difficult real-time feedback of vertical water temperature distribution structure, difficult manual delivery, poor signal transmission, etc., to improve efficiency. and effectiveness, ensuring continuity and integrity, and saving construction costs

Inactive Publication Date: 2018-10-19
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The observation of the vertical water temperature in the reservoir area mostly uses a self-recording water temperature recorder for manual measurement, and the monitoring frequency is mostly once a month. It is difficult to achieve real-time feedback on the vertical water temperature distribution structure in front of the dam
The measurement of the vertical water temperature in front of the dam must overcome the impact of hydrodynamic impact, solve problems such as power supply difficulties, poor signal transmission, and difficulty in manual placement

Method used

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  • Real-time monitoring device and method for vertical water temperature in front of dam of large deep reservoir
  • Real-time monitoring device and method for vertical water temperature in front of dam of large deep reservoir
  • Real-time monitoring device and method for vertical water temperature in front of dam of large deep reservoir

Examples

Experimental program
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Effect test

Embodiment 1

[0031] like Figure 1-3 , a real-time monitoring device for vertical water temperature in front of a large deep reservoir dam, it includes a floating island for carrying the entire monitoring device, the floating island is fixed at a designated position in front of the reservoir dam, and a real-time monitoring device for water temperature is connected below the floating island. Monitored temperature chain 9; the end of the temperature chain 9 is connected with a counterweight 12; a plurality of water depth gauges 11 for measuring water depth are sequentially arranged on the temperature chain; an atmospheric barometer 6 for monitoring air pressure is installed on the floating island ; The temperature chain is connected to the host 7 installed on the floating island; the host is connected to the remote monitoring room through a wireless transmission system, and transmits real-time monitoring data. The above data is stored in the memory of the host computer 7, and transmitted to ...

Embodiment 2

[0039] The monitoring method of the vertical water temperature real-time monitoring device in front of any large deep reservoir dam, it comprises the following steps:

[0040] Step1: According to the temperature hierarchical structure of the reservoir, determine the number and deployment depth of the distributed temperature probes 10 on the temperature chain 9;

[0041] Step2: Assemble the floating island components, and install the temperature chain (9), barometer (6), solar panel support (13) and solar panel (14) on the floating island, connect the temperature chain (9) and the host (7) ) are connected; the floating island is fixed in front of the reservoir dam by a steel cable (5);

[0042]Step3: According to the terrain characteristics in front of the reservoir dam, under the premise of ensuring the safety of the power station unit (15) and observation equipment, select three reliable fixed points, connect steel cables, and fix the floating island;

[0043] Step4: The fre...

Embodiment 3

[0046] The sources of the instruments and equipment used in the following examples are as follows:

[0047] (1) The temperature chain adopts Canadian RBR-XR420, whose temperature range is -5 to 35°C, and the accuracy is 0.01°C.

[0048] (2) The water depth meter uses a HOBO water depth meter to record temperature and air pressure. The range is 0 to 76m, the accuracy is ±0.05%, the temperature range is 0 to 50°C, and the accuracy is ±0.44°C.

[0049] (3) GPRS wireless transmission mode adopts DTU data transmission module, and uses solar panel power supply.

[0050] The Zipingpu Water Conservancy Project is located in the upper reaches of the Minjiang River. The dam site is 9km away from Dujiangyan City. The total storage capacity of Zipingpu Reservoir is 1.112 billion cubic meters. The maximum dam height is 156m, with incomplete annual adjustment performance.

[0051] The monitoring device for real-time measurement of water temperature in front of the dam of Zipingpu Reservo...

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Abstract

The invention relates to a real-time monitoring device and method for a vertical water temperature in front of a dam of a large deep reservoir. The real-time monitoring device comprises a floating island for carrying the whole monitoring device; the floating island is fixed at a designated position in front of a reservoir dam; and a temperature chain for real-time monitoring of the water temperature is connected below the floating island. The temperature chain sets distributed temperature probe installation water depths based on different temperature structures of the reservoir area. A counterweight is connected to the tail end of the temperature chain. A plurality of temperature depth instruments are arranged in sequence along the temperature chain. An atmospheric barometer for monitoringthe air pressure is installed at the floating island. The temperature chain is connected to a host installed at the floating island; and the host is connected with a remote monitoring room through awireless transmission system and transmits real-time monitoring data. With the real-time monitoring device and method, long-term and continuous real-time monitoring of a vertical water temperature distribution rule in front of the dam is realized; and on the basis of combination of self-recording and GPRS wireless transmission, the continuity, integrity and effectiveness of the data are ensured.

Description

technical field [0001] The invention relates to a real-time monitoring device and method for vertical water temperature in front of a large deep reservoir dam, belonging to the field of water conservancy and hydropower engineering monitoring. Background technique [0002] The impoundment of large reservoirs increases the water depth and slows down the flow velocity in the reservoir area, and the vertical temperature stratification structure may appear in the reservoir area. The stronger the regulation capacity of the reservoir, the greater the blocking effect of the reservoir on the water flow, and the more significant the temperature stratification structure of the reservoir. Affected by the stratified structure of water temperature in the reservoir area and the discharge elevation, the water temperature process of the river section under the dam has a homogenization effect and a delay effect compared with the natural water temperature, which has a significant impact on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/02
CPCG01K13/02G01K13/026
Inventor 秦蕾蕾李克锋梁瑞峰王远铭
Owner SICHUAN UNIV