基于管网水力模型的雨水调蓄池运行效率评估  

Performance Efficiency of Detention Tank Based on Hydraulic Model for Drainage System

作　　者：卢小艳[1] 李田[1] 董鲁燕[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《中国给水排水》2012年第17期44-48,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07316-001;2009ZX07316-005)

摘　　要：初期雨水调蓄池是合流制溢流污染控制的主要措施。结合合肥市杏花排水系统调蓄池工程的初步设计,以InfoWorks CS排水管网水力模型为工具,探讨合理的调蓄池设计与运行参数,分析不同截流倍数与调蓄规模下溢流控制设施的长期运行效果。结果表明,该排水系统调蓄池合理的最高蓄满水位和开闸水位均为8.5 m;在现状2倍截流倍数下,调蓄池宜采用4～5 mm径流深度的容积;在有限范围内增加截流倍数对溢流污染削减效果的提高作用不显著;综合考虑系统运行效果和实际应用的可操作性,推荐采用2倍截流倍数和较大的调蓄容积来达到溢流控制目标。Detention tank technology is a principal measure to control combined sewer overflow （CSO） pollution. To support the preliminary design of the detention tank for Xinghua drainage system in Hefei City, a hydraulic model for drainage system （ InfoWorks CS） was used to explore preferable parameters of design and operation. Long-term effect of CSO reduction at different interception ratios and different capacities of detention tank were evaluated. The results showed that the reasonable highest water level for the tank filled to full capacity and to the switch was 8.5 m, and the rational storage capacity should be 4 to 5 mm of runoff depth at the current interception ratio of 2. The effect of CSO reduction was not significant by increasing the interception ratio. It is recommended that the current interception ratio of 2 and large capacity of tank are used to achieve the objectives of CSO reduction.

关 键 词：合流制溢流 调蓄池 管网水力模型 调蓄容积 截流倍数 

分 类 号：TU992[建筑科学—市政工程]