Vortex eliminating device for hydropower station water inlet and vortex eliminating adjusting method

Abstract

The invention provides a vortex eliminating device for a hydropower station water inlet and a vortex eliminating adjusting method. The vortex eliminating device comprises fixed arms, a guide rail, a connecting rod mechanism and vortex eliminating wings. The vortex eliminating device is arranged between two connecting beams of a first layer and a second layer of the hydropower station water inlet.The fixed arms are fixedly connected with a hydropower station foundation, the connecting rod mechanism rotates around the guide rail, and the vortex eliminating wings rotate around the connecting rodmechanism. The two vortex eliminating wings located on the same guide rail are opposite in rotating direction, on the premise that layered water taking and discharged water temperature increasing arenot affected, a composite vortex structure near the hydropower station water inlet is effectively eliminated, water flow turbulence of a water inlet pipe is reduced, and safe operation of a generatorset is guaranteed. The working time and the working intensity of the vortex eliminating device are optimized, and the head loss of a hydropower station is reduced.

Description

technical field [0001] The invention belongs to the technical field of vortex elimination in hydropower stations, and relates to a vortex elimination device and a vortex elimination adjustment method for a water inlet of a hydropower station. Background technique [0002] After the reservoir is built to store water, the flow velocity of the water decreases and the mixing of the water body weakens, often forming a vertically stratified water temperature structure. The low-temperature anoxic water at the bottom is discharged downstream through the water inlet of the generator set, which will have adverse effects on the ecological environment downstream of the reservoir. As a layered water intake engineering facility, the stacked beam gate can effectively improve the problem of low temperature of the discharged water, and has been widely used in large and medium-sized hydropower projects. [0003] The stacked beam gate is generally located in the spare door slot of the trash r...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a vortex elimination device and a vortex elimination adjustment method for the water inlet of a hydropower station. Aiming at the problem that the existing vortex elimination technology cannot be applied to large and medium-sized hydropower stations with logger door structures, the water inlet of the hydropower station is adopted Set up a vortex elimination device to eliminate water flow fluctuations and reduce water head loss without changing the layered water intake of the stacking door and ensuring the temperature of the discharged water

Images