Reservoir comprehensive scheduling method

Abstract

The invention relates to a reservoir comprehensive scheduling method, and belongs to the field of water conservancy projects, and the IPC classification number of the reservoir comprehensive scheduling method is E02B 1 / 00. According to the reservoir comprehensive scheduling method, a waterproof dam is built at the upstream of a dam to divide a reservoir area into a water blocking area, a clear water area and an impounding area which communicate through gates; according to the measurement result of the sediment vertical distribution, the opening height of the gates is automatically controlled,clear water on the upper layer of the water blocking area is guided into the clear water area to be stored for a long time, and it can be guaranteed that a certain amount of standby water resources are still stored in the clear water area when the water blocking area drains and washes; the impounding area can conveniently and flexibly introduce clean water in the clean water area or the water retaining area to generate electricity, and coarse sand in the water retaining area is prevented from abrading a water turbine through a machine. According to the comprehensive scheduling method, the problem of abrasion of sediment in the reservoir of the heavily sediment-laden river to the water turbine is solved, and the contradiction between water storage impounding and flood discharge and sand discharge is solved.

Description

technical field [0001] The invention relates to a comprehensive scheduling method of a reservoir, which belongs to the field of water conservancy engineering, and its IPC classification number is E02B1 / 00. Background technique [0002] Most of the rivers in China have large sediment content, and the problem of sediment wear of water turbines is very prominent. Due to the scouring and abrasion of the water turbine by the sandy water, the surface of the flow-passing parts is seriously damaged, the maintenance and service period of the water turbine are shortened, and the economic benefits of the power station are greatly reduced. Studies in recent years have proved that the abrasiveness of materials increases with the increase of sand content and sand particle size. When the median particle size of sand is d 50 When it is larger than 250 μm, the abrasive effect on the turbine will be significantly increased. Therefore, during the operation of the power station, the passage o...

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Problems solved by technology

The operation of lowering the water level during the flood season is beneficial to the sediment discharge of the reservoir, but it affects the water storage in the reservoir area during the flood season, which in turn affects the function of the reservoir, thus inducing the conflict between the flood discharge and sediment discharge of the reservoir and the water storage and prosperity of the reservoir area. contradiction

[0004] A large amount of coarse-grained sediment is often deposited near the water intake of the power station. When diverting water for power generation, this part of the deposited sediment enters the hydropower station and severely corrodes the turbine. Unable to start up and generate electricity, resulting in a lot of waste of water resources

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