A Method for Analyzing Reservoir Water Temperature Structure

Abstract

A method for analyzing the water temperature structure of a reservoir, comprising the following steps: S1. Acquiring the annual daily change data of the top elevation of the water-repellent curtain wall, and converting the annual daily change data of the top elevation of the water-proof curtain wall into the full grid number in the water temperature model Year-by-day change data; S2. Input the year-by-year change data of the grid number into the water temperature model, and conduct daily water temperature structure analysis; S3. The top elevation of the water-proof curtain wall on the current day is inconsistent with the current day-to-day top elevation of the water-proof curtain wall , the analysis is interrupted, and the downstream side grid boundary of the blocking range grid of the water-repelling curtain wall on the next day is changed to the non-water boundary, and the remaining grids are set as the water-passing boundary, and then the analysis is continued. Due to the adoption of the above technical solution, compared with the prior art, the present invention can automatically adjust the top elevation of the water-proof curtain wall when using the water temperature model to analyze the water temperature structure of the reservoir, so that it can rise and fall with the change of the water level, thereby reducing calculation errors .

Description

technical field

[0001] The invention relates to the field of data processing methods, in particular to a water temperature structure analysis method of a reservoir. Background technique

[0002] Large reservoirs with high dams tend to form the phenomenon of reservoir water temperature stratification in spring and summer. The water body with higher water temperature is located in the upper layer, and the water body with lower temperature is located in the lower layer. However, the water intake of the power station is mostly low in elevation, and the water temperature is low-temperature water, which causes the problem of low-temperature water leakage in spring and summer. The power station releases low-temperature water in spring and summer, which will affect the reproduction of fish and the growth of crops in the downstream river, causing serious ecological impacts.

[0003] The water-proof curtain wall is one of the engineering measures to increase the temperature of the wa...

Examples

Embodiment Construction

[0038] The present invention will be described in further detail below with reference to the accompanying drawings.

[0039] The embodiment of the invention method relies on the low temperature water treatment project of Sanbanxi Hydropower Station of Qingshui River in Guizhou. Sanbanxi Hydropower Station is the second of the 15 cascade hydropower stations in the main stream of Yuanshui River. It has many years of regulation performance. The normal water storage level of the reservoir is 475.00m, the maximum dam height is 185.5m, and the elevation of the inlet floor of the water diversion power generation system is 408.00m. After the reservoir was impounded, the reservoir area showed obvious temperature stratification. The water temperature at the bottom of the reservoir was only 9.6°C, which caused the water temperature in the spring and summer to be lower than the natural water temperature, which adversely affected the spawning and reproduction of downstream fish. In order t...

technical field

[0001] The invention relates to the field of data processing methods, in particular to a water temperature structure analysis method of a reservoir. Background technique

[0002] Large reservoirs with high dams tend to form the phenomenon of reservoir water temperature stratification in spring and summer. The water body with higher water temperature is located in the upper layer, and the water body with lower temperature is located in the lower layer. However, the water intake of the power station is mostly low in elevation, and the water temperature is low-temperature water, which causes the problem of low-temperature water leakage in spring and summer. The power station releases low-temperature water in spring and summer, which will affect the reproduction of fish and the growth of crops in the downstream river, causing serious ecological impacts.

[0003] The water-proof curtain wall is one of the engineering measures to increase the temperature of the wa...

Examples

Embodiment Construction

[0038] The present invention will be described in further detail below with reference to the accompanying drawings.

[0039] The embodiment of the invention method relies on the low temperature water treatment project of Sanbanxi Hydropower Station of Qingshui River in Guizhou. Sanbanxi Hydropower Station is the second of the 15 cascade hydropower stations in the main stream of Yuanshui River. It has many years of regulation performance. The normal water storage level of the reservoir is 475.00m, the maximum dam height is 185.5m, and the elevation of the inlet floor of the water diversion power generation system is 408.00m. After the reservoir was impounded, the reservoir area showed obvious temperature stratification. The water temperature at the bottom of the reservoir was only 9.6°C, which caused the water temperature in the spring and summer to be lower than the natural water temperature, which adversely affected the spawning and reproduction of downstream fish. In order t...

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