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A platform for research: civil engineering, architecture and urbanism
Overflow energy dissipation runner
The overflow energy dissipation flow channel comprises an overflow channel, the overflow channel comprises an overflow face, a first flip bucket is arranged on the overflow face, a centralized aeration groove is formed in the surface of the first flip bucket, a second flip bucket is arranged on the bottom face of the centralized aeration groove, and the elevation of the first flip bucket is larger than that of the second flip bucket. By the adoption of the technical scheme, when large-flow water flow is discharged along the overflow face, one part of the water flow is directly picked out through the first flip bucket, the other part of the water flow is discharged along the centralized air entrainment groove, the water flow is longitudinally stretched while being picked out, a large amount of air is mixed into the water flow while the water flow is longitudinally stretched, the flip bucket water flow energy is eliminated, and the water flow is more uniform. Meanwhile, a large amount of air can be mixed into the water flow through the air mixing groove, energy is eliminated to a greater extent, and damage to the downstream caused by the challenging water flow is reduced. When the gate is partially opened to discharge small-flow water flow, the water flow can still be diffused through the aeration groove and then contracted and lifted through the second flip bucket to dissipate energy, the dam foot is prevented from being smashed by the water flow, and the overall safety of a building is greatly guaranteed.
本发明公开了一种溢流消能流道，包括溢流道，溢流道包括溢流面，溢流面上设有第一挑坎，第一挑坎的表面设有集中掺气槽，集中掺气槽的底面设有第二挑坎，第一挑坎的高程大于第二挑坎的高程。采用本发明的技术方案，当大流量水流沿着溢流面下泄时，一部分水流经过第一挑坎直接挑出，而另一部分水流则沿着集中掺气槽下泄，使得水流挑出的同时被纵向拉伸，水流在纵向拉伸的同时又掺入大量空气，消除挑流水流能量，同时水流经掺气槽也能掺入大量空气，更大限度的地消除能量，减小挑射水流对下游的破坏。当闸门局部打开泄放小流量水流时，水流仍然能够先经过掺气槽扩散后再经第二挑坎收缩起挑消能，避免水流冲砸坝脚，极大保障建筑物整体安全。
Overflow energy dissipation runner
The overflow energy dissipation flow channel comprises an overflow channel, the overflow channel comprises an overflow face, a first flip bucket is arranged on the overflow face, a centralized aeration groove is formed in the surface of the first flip bucket, a second flip bucket is arranged on the bottom face of the centralized aeration groove, and the elevation of the first flip bucket is larger than that of the second flip bucket. By the adoption of the technical scheme, when large-flow water flow is discharged along the overflow face, one part of the water flow is directly picked out through the first flip bucket, the other part of the water flow is discharged along the centralized air entrainment groove, the water flow is longitudinally stretched while being picked out, a large amount of air is mixed into the water flow while the water flow is longitudinally stretched, the flip bucket water flow energy is eliminated, and the water flow is more uniform. Meanwhile, a large amount of air can be mixed into the water flow through the air mixing groove, energy is eliminated to a greater extent, and damage to the downstream caused by the challenging water flow is reduced. When the gate is partially opened to discharge small-flow water flow, the water flow can still be diffused through the aeration groove and then contracted and lifted through the second flip bucket to dissipate energy, the dam foot is prevented from being smashed by the water flow, and the overall safety of a building is greatly guaranteed.
本发明公开了一种溢流消能流道，包括溢流道，溢流道包括溢流面，溢流面上设有第一挑坎，第一挑坎的表面设有集中掺气槽，集中掺气槽的底面设有第二挑坎，第一挑坎的高程大于第二挑坎的高程。采用本发明的技术方案，当大流量水流沿着溢流面下泄时，一部分水流经过第一挑坎直接挑出，而另一部分水流则沿着集中掺气槽下泄，使得水流挑出的同时被纵向拉伸，水流在纵向拉伸的同时又掺入大量空气，消除挑流水流能量，同时水流经掺气槽也能掺入大量空气，更大限度的地消除能量，减小挑射水流对下游的破坏。当闸门局部打开泄放小流量水流时，水流仍然能够先经过掺气槽扩散后再经第二挑坎收缩起挑消能，避免水流冲砸坝脚，极大保障建筑物整体安全。
Overflow energy dissipation runner
一种溢流消能流道
QIU HUANFENG (author) / ZHENG XUEYU (author) / CHENG RUILIN (author) / HAO PENG (author) / KONG YUTIAN (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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