虹吸技术在污水管道穿越交叉管线工程中的应用  

Application of Siphon Technology in Sewage Pipeline Crossing Other Pipeline Project

作　　者：孙怡强 李国然[2] SUN Yi-qiang;LI Guo-ran(Xinxiang Municipal Design&Research Institute Co.Ltd.,Xinxiang 453000,China;Xinxiang Municipal Engineering Department Co.Ltd.,Xinxiang 453000,China)

机构地区：[1]新乡市市政设计研究院有限公司,河南新乡453000 [2]新乡市市政工程处有限公司,河南新乡453000

出　　处：《中国给水排水》2024年第14期69-72,共4页China Water & Wastewater

摘　　要：新乡市高村路新建d1000mm污水管道与已建DN2800南水北调输水主管道交叉时发生高程冲突,遵循小口径管道避让已建大口径管道原则,经工程建设、运行维护等方面的分析比较,并通过水力计算,最终确定采用污水管道虹吸技术。虹吸系统由虹吸管道、进水水封井、出水水封井、真空管路、真空泵等组成,通过在进水水封井设置沉泥槽、选取较大设计流速、定期冲洗、定期抽吸真空等措施,解决了污水管道真空管路失灵、堵塞、渗漏污染等问题,确保了系统正常运行。A height conflict occurred due to the intersection of a newly constructed d1000 mm sewage pipeline with the existing DN2800 South-to-North Water Diversion Project mains in Gaocun Road,Xinxiang City.Following the principle of small diameter to avoid existing large diameter pipelines,through hydraulic calculation,the sewage pipe siphon technology was ultimately recommended for use in terms of engineering construction,operation and maintenance.The siphon system consisted of siphon pipes,inlet water seal wells,outlet water seal wells,vacuum pipes,vacuum pumps,and other components.By incorporating a sedimentation tank in the inlet water seal well,selecting a large design flow rate,implementing regular flushing and vacuum pumping procedures,the issues related to vacum pipe failure,blockage,leakage and pollution in the sewage pipeline were effectively resolved,and this ensured the normal operation of the system.

关 键 词：管道交叉 虹吸 水封井 真空管路 

分 类 号：TU992[建筑科学—市政工程]