Design method of reservoir tail water enclosure under seawater pumped storage power station

Abstract

The invention relates to a design method of a reservoir tail water enclosure under a seawater pumped storage power station. The design method comprises the following steps: analyzing the demand of a permeable breakwater; determining basic parameters of the breakwater; acquiring a water limited flow rate of the permeable hole; obtaining parameters of the flow-through holes; calculating the height of the through-flow hole; and executing a model experiment. By summarizing the breakwater structure of the reservoir tail water enclosure under the seawater pumped storage power station, which comprises the basic requirements of wave prevention, flow permeation, sand prevention, drifting prevention, easiness in cleaning and the like, the invention provides a permeable breakwater structure type, namely a vertical baffle type permeable breakwater capable of considering the functions in all aspects; from the aspect of drifting prevention, vertical baffle type permeable breakwater is not prone to adsorbing or hooking floaters, and by means of the design method of the vertical baffle type permeable breakwater, accurate determination of the structural type of the lower reservoir breakwater can beachieved; and an applicable reference basis is provided for arrangement of reservoir tail water enclosures under the seawater pumped storage power station, selection of permeable breakwater structuretypes and engineering design.

Description

technical field [0001] The invention relates to a design method for tail water enclosure of a lower reservoir of a seawater pumped storage power station, which is a design method for a water conservancy project and a design method for an auxiliary structure of a seawater pumped storage power station. Background technique [0002] The pumped storage power station is created to solve the contradiction between supply and demand between the peak and trough of the power grid, and it is a way of indirect storage of electric energy. It uses the excess power in the second half of the night to drive the water pump to pump water from the lower reservoir to the upper reservoir for storage, and then releases the water to generate electricity during the day and the first half of the next day, and flows into the lower reservoir. [0003] The seawater pumped storage power station uses the sea as the lower reservoir, and builds the upper reservoir on the coastal mountain with reasonable geo...

AI Technical Summary

Problems solved by technology

Especially in the case of large waves, large waves will spread to the vicinity of the project. On the one hand, it will affect the stability of the tailwater containment breakwater, and on the other hand, it will cause large fluctuations in the water level in the lower reservoir, which will affect the safe and stable operation of the power station.

Because seawater pumped storage power plants are rarely used, there is a lack of relevant research on breakwater structure types that can be applied to the tail water enclosure of lower reservoirs, and the design methods are even more lacking.

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