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Underground sewage pipeline and turbulence silt prevention method for underground sewage pipeline
The invention provides an underground sewage pipeline. The underground sewage pipeline comprises a pipeline body and a plurality of turbulence ridges located in the pipeline body. Karman vortexes can be generated behind the ridges by arranging the turbulence ridges, the turbulent fluctuation degree of a water flow easy-to-deposit area at the bottom of the pipe is increased, water flow can ascend and descend along the turbulence ridges, a series of vortexes are generated behind the turbulence ridges, and the water flow is disturbed, so that solid particles in the water flow are not easy to deposit, and substances settled in the pipeline can be suspended in the water again and move backwards along with the water flow. Meanwhile, the overflowing area of the pipeline is alternately reduced, and the flow speed is alternately changed, so that the solid particles in the pipeline are not easy to deposit. Therefore, the silt accumulation speed of the underground sewage pipeline can be slowed down by increasing the turbulent fluctuation degree of the water flow at the bottom of the pipe, and the cleaning cost of the underground sewage pipeline is saved.
本发明提供一种地下污水管道，包括管道主体及位于管道主体内的若干扰流坎；设置扰流坎能够使坎后产生卡门涡，增加管底水流易淤积区的紊动度，水流会沿着扰流坎爬高再跌落，在扰流坎后方产生一连串旋涡，水流发生扰动，水流扰动既可以使水流中的固体颗粒不易沉淀，也可以使已经沉淀在管道中的物质再次悬浮在水中，随水流向后运动。同时管道过流面积交替减小，流速交替变化，使管道中的固体颗粒不容易沉淀。故能够通过增加管底水流紊动度，减缓地下污水管道淤积速度，节省地下污水管道清理费用。
Underground sewage pipeline and turbulence silt prevention method for underground sewage pipeline
The invention provides an underground sewage pipeline. The underground sewage pipeline comprises a pipeline body and a plurality of turbulence ridges located in the pipeline body. Karman vortexes can be generated behind the ridges by arranging the turbulence ridges, the turbulent fluctuation degree of a water flow easy-to-deposit area at the bottom of the pipe is increased, water flow can ascend and descend along the turbulence ridges, a series of vortexes are generated behind the turbulence ridges, and the water flow is disturbed, so that solid particles in the water flow are not easy to deposit, and substances settled in the pipeline can be suspended in the water again and move backwards along with the water flow. Meanwhile, the overflowing area of the pipeline is alternately reduced, and the flow speed is alternately changed, so that the solid particles in the pipeline are not easy to deposit. Therefore, the silt accumulation speed of the underground sewage pipeline can be slowed down by increasing the turbulent fluctuation degree of the water flow at the bottom of the pipe, and the cleaning cost of the underground sewage pipeline is saved.
本发明提供一种地下污水管道，包括管道主体及位于管道主体内的若干扰流坎；设置扰流坎能够使坎后产生卡门涡，增加管底水流易淤积区的紊动度，水流会沿着扰流坎爬高再跌落，在扰流坎后方产生一连串旋涡，水流发生扰动，水流扰动既可以使水流中的固体颗粒不易沉淀，也可以使已经沉淀在管道中的物质再次悬浮在水中，随水流向后运动。同时管道过流面积交替减小，流速交替变化，使管道中的固体颗粒不容易沉淀。故能够通过增加管底水流紊动度，减缓地下污水管道淤积速度，节省地下污水管道清理费用。
Underground sewage pipeline and turbulence silt prevention method for underground sewage pipeline
一种地下污水管道及地下污水管道扰流防淤方法
XI BIN (author) / CHEN QIANQIAN (author) / KONG QINGHAO (author) / WANG HE (author) / ZHENG YAZHEN (author) / DUAN YUANFENG (author) / YANG XU (author) / LU RU (author)
2021-07-23
Patent
Electronic Resource
Chinese
IPC:
E03F
SEWERS
,
Abwasserkanäle
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