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Dovetail flip bucket and fitting slope aeration method and structure
The invention provides a dovetail flip bucket and fitting slope aeration method and structure. The problems that water accumulates in an aeration cavity of a small base slope and a low-Fr-value drainage flow channel and the aeration effect is poor are mainly solved. The aeration structure is mainly composed of a dovetail flip bucket, a downstream fitting slope and a connecting segment. The tail end of a conventional two-dimensional continuous linear flip bucket is provided with a V-shaped notch (the notch is shaped like a dovetail, so the V-shaped notch is called as the dovetail flip bucket), and adjustment of the nappe toss angle of the top of the flip bucket and the napple drop point distribution behind the flip bucket is beneficial for jet impact angle unification; the sharp fitting slope is arranged at the nappe drop point position of the small base slope, so that the jet impact angle is within a critical value for generating backflow water, and backflow water accumulation at the nappe drop point position of a base plate is eliminated; and the upstream end of the fitting slope is connected with the upstream flip bucket through the connecting segment, and generally, a flat slope or a right slope is adopted. The dovetail flip bucket, the fitting slope and the connecting segment form a complete system through different connecting manners. The aeration structure is simple, resistant to cavitation and erosion and high in universality, and the aeration cavity is large, stable and free of water accumulation.
Dovetail flip bucket and fitting slope aeration method and structure
The invention provides a dovetail flip bucket and fitting slope aeration method and structure. The problems that water accumulates in an aeration cavity of a small base slope and a low-Fr-value drainage flow channel and the aeration effect is poor are mainly solved. The aeration structure is mainly composed of a dovetail flip bucket, a downstream fitting slope and a connecting segment. The tail end of a conventional two-dimensional continuous linear flip bucket is provided with a V-shaped notch (the notch is shaped like a dovetail, so the V-shaped notch is called as the dovetail flip bucket), and adjustment of the nappe toss angle of the top of the flip bucket and the napple drop point distribution behind the flip bucket is beneficial for jet impact angle unification; the sharp fitting slope is arranged at the nappe drop point position of the small base slope, so that the jet impact angle is within a critical value for generating backflow water, and backflow water accumulation at the nappe drop point position of a base plate is eliminated; and the upstream end of the fitting slope is connected with the upstream flip bucket through the connecting segment, and generally, a flat slope or a right slope is adopted. The dovetail flip bucket, the fitting slope and the connecting segment form a complete system through different connecting manners. The aeration structure is simple, resistant to cavitation and erosion and high in universality, and the aeration cavity is large, stable and free of water accumulation.
Dovetail flip bucket and fitting slope aeration method and structure
WU SHIQIANG (Autor:in) / WANG FANGFANG (Autor:in) / WANG WEI (Autor:in) / WU XIUFENG (Autor:in) / ZHOU JIE (Autor:in) / SHA HAIFEI (Autor:in) / XUE WANYUN (Autor:in) / DAI JIANGYU (Autor:in) / CAO HAO (Autor:in) / CHEN HUILING (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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