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Shaft rotational flow and energy dissipation tunnel spillway with diving spinning pier
The invention provides a shaft rotational flow and energy dissipation tunnel spillway with a diving spinning pier. An outer circumference of a water inlet of the tunnel spillway is provided with an annular weir, a plurality of spinning piers are arranged outside the annular weir, the water inlet is connected with a shaft, the shaft is connected with an adit, the adit is connected with a water outlet, the tunnel spillway further comprises a plurality of shaft air supplementary pipes and a plurality of adit air supplementary pipes, the shaft air supplementary pipes are used to supplement air tothe wall of the shaft, an air inlet at the upper end of each shaft air supplementary pipe is higher than the highest water level of a reservoir, and each shaft air supplementary pipe is provided witha plurality of air outlets on the pipe wall of the shaft; the adit air supplementary pipes are used to supplement air to the wall of the adit, the air inlet at the upper end of each adit air supplement pipe is higher than the highest water level of the reservoir, and each adit air supplementary pipe is provided with a plurality of second air outlets on the pipe wall of the audit. The shaft rotational flow and energy dissipation tunnel spillway can use negative pressure generated by the water flow separation phenomenon of the tunnel spillway to introduce outside air so as to reduce the negativepressure and increase the pressure on the wall of the tunnel spillway, and the cavitation damage of the tunnel spillway is prevented.
本发明提供了一种潜水起旋墩竖井旋流消能泄洪洞，其进水口的外周上设有环形堰，环形堰外侧上设有多个起旋墩，进水口连接竖井，竖井连接平洞，平洞连接出水洞，还包括多根竖井补气管和多根平洞补气管，竖井补气管用于向竖井内的井壁处补充空气，各竖井补气管上端的进气口均高于水库最高水位，各竖井补气管的位于竖井内的管壁上均开设有若干个第一出气孔；平洞补气管用于向平洞内的洞壁处补充空气，各平洞补气管上端的进气口均高于水库最高水位，各平洞补气管的位于平洞内的管壁上均开设有若干个第二出气孔。本发明能够利用泄洪洞自身水流分离现象所产生的负压来引入外界空气以降低该负压、增加泄洪洞壁面的压力，从而防止泄洪洞发生空蚀破坏。
Shaft rotational flow and energy dissipation tunnel spillway with diving spinning pier
The invention provides a shaft rotational flow and energy dissipation tunnel spillway with a diving spinning pier. An outer circumference of a water inlet of the tunnel spillway is provided with an annular weir, a plurality of spinning piers are arranged outside the annular weir, the water inlet is connected with a shaft, the shaft is connected with an adit, the adit is connected with a water outlet, the tunnel spillway further comprises a plurality of shaft air supplementary pipes and a plurality of adit air supplementary pipes, the shaft air supplementary pipes are used to supplement air tothe wall of the shaft, an air inlet at the upper end of each shaft air supplementary pipe is higher than the highest water level of a reservoir, and each shaft air supplementary pipe is provided witha plurality of air outlets on the pipe wall of the shaft; the adit air supplementary pipes are used to supplement air to the wall of the adit, the air inlet at the upper end of each adit air supplement pipe is higher than the highest water level of the reservoir, and each adit air supplementary pipe is provided with a plurality of second air outlets on the pipe wall of the audit. The shaft rotational flow and energy dissipation tunnel spillway can use negative pressure generated by the water flow separation phenomenon of the tunnel spillway to introduce outside air so as to reduce the negativepressure and increase the pressure on the wall of the tunnel spillway, and the cavitation damage of the tunnel spillway is prevented.
本发明提供了一种潜水起旋墩竖井旋流消能泄洪洞，其进水口的外周上设有环形堰，环形堰外侧上设有多个起旋墩，进水口连接竖井，竖井连接平洞，平洞连接出水洞，还包括多根竖井补气管和多根平洞补气管，竖井补气管用于向竖井内的井壁处补充空气，各竖井补气管上端的进气口均高于水库最高水位，各竖井补气管的位于竖井内的管壁上均开设有若干个第一出气孔；平洞补气管用于向平洞内的洞壁处补充空气，各平洞补气管上端的进气口均高于水库最高水位，各平洞补气管的位于平洞内的管壁上均开设有若干个第二出气孔。本发明能够利用泄洪洞自身水流分离现象所产生的负压来引入外界空气以降低该负压、增加泄洪洞壁面的压力，从而防止泄洪洞发生空蚀破坏。
Shaft rotational flow and energy dissipation tunnel spillway with diving spinning pier
潜水起旋墩竖井旋流消能泄洪洞
ZHA BIN (author) / HAI BIN (author) / ZHANG XIUYUAN (author) / ZHU DEGONG (author) / HUO XIANGLI (author) / WANG ZHIGUANG (author) / LI MING (author) / WANG TING (author) / JIN RUNFANG (author) / KOU ZUHE (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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