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Energy dissipation structure for water conservancy and hydropower engineering
The invention aims to provide an energy dissipation structure for water conservancy and hydropower engineering. The energy dissipation structure involves a drainage port formed in the upper portion ofa dam and a flip ramp arranged on one side of the dam; the upper end of the flip ramp is connected with the drainage port, and the lower end of the flip ramp obliquely extends downwards and tilts upwards along an arc at the end part; a buffer device is arranged at the tail end of the flip ramp, and a hydraulic jump area is arranged between the buffer device and the flip ramp; the end face, facingthe flip ramp, of the buffer device is provided with a plurality of continuous flowing channels arranged from top to bottom; and a water outlet communicating with all the continuous flowing channelsis formed in the end surface, back on to the flip ramp, of the buffer device. The downwards-poured water flow is upwards flipped into the air through the flip ramp, and part of kinetic energy of the water flow is dissipated through the air; and when the water flow passes through the hydraulic jump area from the air, the diffusion phenomenon can be generated, so that the water flow can enter the continuous flowing channels with different heights, the contact area between the continuous flowing channels and the water flow is increased, and energy dissipation is conducted on the water flow through friction force.
本发明旨在提供一种水利水电工程的消能结构，包括设置于大坝上部的泄流口、设置于大坝一侧的挑流坡道；所述挑流坡道的上端衔接泄流口、下端斜向下延伸并于端部沿弧线斜向上翘起；所述挑流坡道的末端设置有缓冲装置，所述缓冲装置与挑流坡道之间设置有水跃区；所述缓冲装置朝向挑流坡道的端面上设置有从上至下排列的若干续流通道；所述缓冲装置背向挑流坡道的端面上设置有与所有续流通道相连通的出水口。利用挑流坡道将向下倾泻的水流向上挑射到空中，利用空气消散水流的部分动能；当水流从空中经过水跃区时会产生扩散现象，从而使水流能够进入不同高度的续流通道内，增加续流通道与水流之间的接触面积，从而利用摩擦力来对水流进行消能。
Energy dissipation structure for water conservancy and hydropower engineering
The invention aims to provide an energy dissipation structure for water conservancy and hydropower engineering. The energy dissipation structure involves a drainage port formed in the upper portion ofa dam and a flip ramp arranged on one side of the dam; the upper end of the flip ramp is connected with the drainage port, and the lower end of the flip ramp obliquely extends downwards and tilts upwards along an arc at the end part; a buffer device is arranged at the tail end of the flip ramp, and a hydraulic jump area is arranged between the buffer device and the flip ramp; the end face, facingthe flip ramp, of the buffer device is provided with a plurality of continuous flowing channels arranged from top to bottom; and a water outlet communicating with all the continuous flowing channelsis formed in the end surface, back on to the flip ramp, of the buffer device. The downwards-poured water flow is upwards flipped into the air through the flip ramp, and part of kinetic energy of the water flow is dissipated through the air; and when the water flow passes through the hydraulic jump area from the air, the diffusion phenomenon can be generated, so that the water flow can enter the continuous flowing channels with different heights, the contact area between the continuous flowing channels and the water flow is increased, and energy dissipation is conducted on the water flow through friction force.
本发明旨在提供一种水利水电工程的消能结构，包括设置于大坝上部的泄流口、设置于大坝一侧的挑流坡道；所述挑流坡道的上端衔接泄流口、下端斜向下延伸并于端部沿弧线斜向上翘起；所述挑流坡道的末端设置有缓冲装置，所述缓冲装置与挑流坡道之间设置有水跃区；所述缓冲装置朝向挑流坡道的端面上设置有从上至下排列的若干续流通道；所述缓冲装置背向挑流坡道的端面上设置有与所有续流通道相连通的出水口。利用挑流坡道将向下倾泻的水流向上挑射到空中，利用空气消散水流的部分动能；当水流从空中经过水跃区时会产生扩散现象，从而使水流能够进入不同高度的续流通道内，增加续流通道与水流之间的接触面积，从而利用摩擦力来对水流进行消能。
Energy dissipation structure for water conservancy and hydropower engineering
一种水利水电工程的消能结构
DENG XINHONG (author) / ZHANG HONGJUN (author) / TAN FANGWEI (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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