Stilling pool

Abstract

The invention discloses a stilling pool which is good in energy dissipation effect and low in construction cost. The stilling pool comprises a tail pit. A gap is formed in the middle of the tail pit, so that the tail pit is in a concave shape. The length of the gap is 1 / 2 to 2 / 3 that of the tail pit. The height of the bottom of the gap is 0 to 1 / 2 that of the tail pit. The stilling pool has the significant effect on flow dispersion, can be suitable for large-range flow changes and can save work amount, and the novel stilling pool can achieve energy dissipation.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a novel energy-dissipating worker-shaped stilling pool for a drainage building. Background technique [0002] The stilling basin is an energy dissipation device that promotes the discharge of the discharge structure to generate an underflow hydraulic jump downstream. Through the hydraulic jump, the rapid flow released by the release structure is transformed into a slow flow to eliminate the energy dissipation method of kinetic energy. Generally, it can eliminate 40% to 70% of the kinetic energy of the discharged water flow, and can shorten the length of the apron. It is an effective and economical energy dissipation facility. It has the advantages of stable flow state, good energy dissipation effect, strong adaptability to geological conditions and tail water amplitude, and small tail water fluctuation. However, the construction of existing ...

AI Technical Summary

Problems solved by technology

However, the construction of the existing stilling pool has the disadvantages of large excavation volume of earthwork and concrete volume, and high engineering cost.

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