A water tunnel energy dissipation structure

Abstract

The invention relates to the technical field of water delivery engineering, in particular to an energy dissipation structure of a water delivery tunnel, comprising an apron, a stilling pool and a stilling sill, the apron is located upstream of the stilling pool, and the stilling sill is located at the stilling pool At the end of the stilling sill, the stilling sill protrudes vertically from the bottom of the stilling pool, and a horizontal flow measuring pipe is embedded in the stilling sill, which communicates with the space on both sides of the stilling sill, and a flow meter is connected to the flow measuring pipe . In the present invention, the water pressure upstream of the stilling sill is relatively high, and the water pressure downstream of the stilling sill is relatively small. Therefore, there will be water flowing from the flow measuring pipeline into the downstream of the stilling sill upstream of the stilling sill. The flow of water flowing in the flow pipe can be used to infer the pressure difference between the two sides of the stilling sill, and then judge whether the stilling effect of the stilling sill is reduced due to long-term use of scouring, so as to realize remote monitoring of the energy dissipation structure of the water delivery tunnel The effect of reliability facilitates the overall management of water conservancy facilities in various places by the Water Conservancy Bureau, and facilitates investigation and maintenance.

Description

technical field [0001] The invention relates to the technical field of water delivery engineering, in particular to an energy dissipation structure of a water delivery tunnel. Background technique [0002] Reservoirs are usually composed of three parts: water retaining buildings, water discharge buildings and water delivery buildings, which become the "three major parts" of the reservoir. The function of the water delivery buildings is to transport water from the reservoir to the downstream for irrigation and power generation. and water supply needs, the water delivery tunnel is the first structure through which the reservoir delivers water to the outside. [0003] Where it is used for irrigation and water supply, the water flow out of the water tunnel must have high stability, and the flow rate and water level of the water flow must be relatively stable. Therefore, the water flow upstream of the water tunnel must be eliminated in the water tunnel. can handle. The energy d...

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Problems solved by technology

[0005] The disadvantage of the above-mentioned prior art is that the energy-dissipating structure of the water delivery tunnel generally has a relatively long service life, and because the reservoir also lacks a special person to manage each part, the water delivery tunnel often falls into disrepair for a long time, and once The energy dissipation effect of the water tunnel is not good, and the impact of the water flow on the downstream dam is very large, which may even lead to the collapse of the embankment

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