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A platform for research: civil engineering, architecture and urbanism
Water diversion and sand prevention system and method for reverse water diversion and forward sand flushing
The invention discloses a water diversion and sand prevention system and method for reverse water diversion and forward sand flushing, and relates to the field of hydraulic engineering, the water diversion and sand prevention system comprises a water diversion, desilting and sand flushing integrated channel arranged on one side of a river channel in a mountainous area, and the width of the desilting and sand flushing channel is gradually narrowed from the upstream to the downstream of the river channel; a water diversion and sand flushing gate and a water diversion device are arranged on the upstream of the desilting and sand flushing channel, the water diversion and sand flushing gate is close to the river channel, and the water diversion device is far away from the river channel; a sand discharge gate, a river sluice dam and a water diversion gate are arranged on the downstream of the desilting and sand flushing channel, the sand discharge gate and the water diversion gate are arranged on the two sides of the river sluice dam correspondingly, the sand discharge gate and the water diversion gate are separated through the river sluice dam, and the sand discharge gate is arranged on the downstream of the water diversion gate; the channel is reversely guided from downstream to upstream, and at the moment, the channel is an inverted slope and broadened, so that the flow velocity of water flow can be controlled, and sediment sedimentation in water is increased; the channel flushes sand from the upstream to the downstream in the forward direction, at the moment, the sand flushing groove is a downslope, the groove width is narrowed, the water flow speed can be increased, and the sand flushing efficiency is improved. Technical support is provided for improving the power generation efficiency of the hydropower station, increasing the power generation benefit, reducing the desilting maintenance cost and the like, the application prospect is wide, and the economic benefit potential is huge.
本发明公开了一种逆向引水顺向冲沙的引水防沙系统及方法，涉及水利工程领域，该引水防沙系统包括：设置在山区河道一侧的引水、沉沙、冲沙一体化渠道，沉沙冲沙渠的宽度自河道的上游至下游逐渐变窄；沉沙冲沙渠的上游设有引水冲沙闸以及引水装置，引水冲沙闸靠近河道设置，引水装置远离河道设置；沉沙冲沙渠的下游设有排沙闸、拦河闸坝以及引水闸，拦河闸坝的两侧分别设有排沙闸以及引水闸，且拦河闸坝将排沙闸以及引水闸隔开，排沙闸设置于引水闸的下游；渠道从下游往上游引水时为逆流向引水，此时渠道为倒坡且展宽，可以控制水流流速，增加水中泥沙沉降；渠道从上游往下游冲沙时为顺流向冲沙，此时冲沙槽为顺坡且槽宽收窄，可以提高水流流速，提供冲沙效率。本发明为保障提高水电站发电效率、增加发电效益、降低清淤维护成本等提供了技术支撑，具有广泛的应用前景，且经济效益潜力巨大。
Water diversion and sand prevention system and method for reverse water diversion and forward sand flushing
The invention discloses a water diversion and sand prevention system and method for reverse water diversion and forward sand flushing, and relates to the field of hydraulic engineering, the water diversion and sand prevention system comprises a water diversion, desilting and sand flushing integrated channel arranged on one side of a river channel in a mountainous area, and the width of the desilting and sand flushing channel is gradually narrowed from the upstream to the downstream of the river channel; a water diversion and sand flushing gate and a water diversion device are arranged on the upstream of the desilting and sand flushing channel, the water diversion and sand flushing gate is close to the river channel, and the water diversion device is far away from the river channel; a sand discharge gate, a river sluice dam and a water diversion gate are arranged on the downstream of the desilting and sand flushing channel, the sand discharge gate and the water diversion gate are arranged on the two sides of the river sluice dam correspondingly, the sand discharge gate and the water diversion gate are separated through the river sluice dam, and the sand discharge gate is arranged on the downstream of the water diversion gate; the channel is reversely guided from downstream to upstream, and at the moment, the channel is an inverted slope and broadened, so that the flow velocity of water flow can be controlled, and sediment sedimentation in water is increased; the channel flushes sand from the upstream to the downstream in the forward direction, at the moment, the sand flushing groove is a downslope, the groove width is narrowed, the water flow speed can be increased, and the sand flushing efficiency is improved. Technical support is provided for improving the power generation efficiency of the hydropower station, increasing the power generation benefit, reducing the desilting maintenance cost and the like, the application prospect is wide, and the economic benefit potential is huge.
本发明公开了一种逆向引水顺向冲沙的引水防沙系统及方法，涉及水利工程领域，该引水防沙系统包括：设置在山区河道一侧的引水、沉沙、冲沙一体化渠道，沉沙冲沙渠的宽度自河道的上游至下游逐渐变窄；沉沙冲沙渠的上游设有引水冲沙闸以及引水装置，引水冲沙闸靠近河道设置，引水装置远离河道设置；沉沙冲沙渠的下游设有排沙闸、拦河闸坝以及引水闸，拦河闸坝的两侧分别设有排沙闸以及引水闸，且拦河闸坝将排沙闸以及引水闸隔开，排沙闸设置于引水闸的下游；渠道从下游往上游引水时为逆流向引水，此时渠道为倒坡且展宽，可以控制水流流速，增加水中泥沙沉降；渠道从上游往下游冲沙时为顺流向冲沙，此时冲沙槽为顺坡且槽宽收窄，可以提高水流流速，提供冲沙效率。本发明为保障提高水电站发电效率、增加发电效益、降低清淤维护成本等提供了技术支撑，具有广泛的应用前景，且经济效益潜力巨大。
Water diversion and sand prevention system and method for reverse water diversion and forward sand flushing
一种逆向引水顺向冲沙的引水防沙系统及方法
JI ZUWEN (author) / DONG ZHANDI (author) / JI MINGDONG (author) / DENG ANJUN (author) / WANG DANGWEI (author) / LU QIN (author) / SHI HONGLING (author) / YUE MAOHUA (author) / XIE YIQIN (author) / ZHANG BANGWEN (author)
2023-09-01
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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