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Anti-freezing ecological drainage device based on dam siphon principle
The anti-freezing ecological drainage device based on the dam siphon principle comprises a gate dam building and a siphon pipeline, the upstream dam face of the gate dam building is a vertical dam face, the siphon pipeline comprises a water inlet pipe section, a water conveying pipe section and an energy dissipation pipe section, and a water inlet of the siphon pipeline is located below the lowest operation water level of an upstream reservoir area; a water outlet of the siphon pipeline is located at the downstream dam face slope toe of the gate dam building and provided with a valve, the highest section of the water conveying pipe section at the dam crest position is connected with an auxiliary pipeline, the auxiliary pipeline is connected with a vacuum pump and an electric butterfly valve, and an anti-freezing device is arranged on the outer wall of the water inlet pipe section. The siphon pipeline is fixed through cast-in-place reinforced concrete anchor piers, buttresses and supporting rings. The problem of ecological drainage can be solved, the water inlet pipe section is prevented from being dragged or lifted by longitudinal displacement of an ice cover in an upstream reservoir area, and in addition, the energy dissipation pipe section reduces scouring of water flow at a water outlet to a downstream riverbed under the condition that the flow is not affected.
本发明公开了一种基于大坝虹吸原理的防冻结生态泄流装置，包括闸坝建筑物和虹吸管道，闸坝建筑物的上游坝面为垂直坝面，虹吸管道包括进水管段、输水管段以及消能管段，虹吸管道的进水口位于上游库区的最低运行水位以下，虹吸管道的出水口位于闸坝建筑物的下游坝面坡脚处，出水口设置阀门，坝顶位置的输水管段的最高段连接辅助管道，辅助管道连接真空泵和电动蝶阀，进水管段的外壁设置有防冻结装置，虹吸管道通过现浇钢筋混凝土镇墩、支墩以及支撑环进行固定。本发明不仅能解决生态泄流问题，而且防止上游库区冰盖纵向位移对进水管段的拖拽或抬升，此外消能管段在不影响流量的情况下减小了出水口水流对下游河床的冲刷。
Anti-freezing ecological drainage device based on dam siphon principle
The anti-freezing ecological drainage device based on the dam siphon principle comprises a gate dam building and a siphon pipeline, the upstream dam face of the gate dam building is a vertical dam face, the siphon pipeline comprises a water inlet pipe section, a water conveying pipe section and an energy dissipation pipe section, and a water inlet of the siphon pipeline is located below the lowest operation water level of an upstream reservoir area; a water outlet of the siphon pipeline is located at the downstream dam face slope toe of the gate dam building and provided with a valve, the highest section of the water conveying pipe section at the dam crest position is connected with an auxiliary pipeline, the auxiliary pipeline is connected with a vacuum pump and an electric butterfly valve, and an anti-freezing device is arranged on the outer wall of the water inlet pipe section. The siphon pipeline is fixed through cast-in-place reinforced concrete anchor piers, buttresses and supporting rings. The problem of ecological drainage can be solved, the water inlet pipe section is prevented from being dragged or lifted by longitudinal displacement of an ice cover in an upstream reservoir area, and in addition, the energy dissipation pipe section reduces scouring of water flow at a water outlet to a downstream riverbed under the condition that the flow is not affected.
本发明公开了一种基于大坝虹吸原理的防冻结生态泄流装置，包括闸坝建筑物和虹吸管道，闸坝建筑物的上游坝面为垂直坝面，虹吸管道包括进水管段、输水管段以及消能管段，虹吸管道的进水口位于上游库区的最低运行水位以下，虹吸管道的出水口位于闸坝建筑物的下游坝面坡脚处，出水口设置阀门，坝顶位置的输水管段的最高段连接辅助管道，辅助管道连接真空泵和电动蝶阀，进水管段的外壁设置有防冻结装置，虹吸管道通过现浇钢筋混凝土镇墩、支墩以及支撑环进行固定。本发明不仅能解决生态泄流问题，而且防止上游库区冰盖纵向位移对进水管段的拖拽或抬升，此外消能管段在不影响流量的情况下减小了出水口水流对下游河床的冲刷。
Anti-freezing ecological drainage device based on dam siphon principle
一种基于大坝虹吸原理的防冻结生态泄流装置
HE XIAO (author) / WANG JINGYUN (author) / WANG MINGFENG (author) / SU DUDU (author) / HAO XIN (author) / YANG XING (author) / YANG FAN (author)
2022-03-25
Patent
Electronic Resource
Chinese
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