北方某城市雨水调蓄池设计案例分析  

Case Study on the Design of Rainwater Detention Tank in a Northern City

作　　者：吕炎 黄更 LÜYan;HUANG Geng(North China Municipal Engineering Design,&Research Institute Co.,Ltd.,Tianjin 300381,China;China Xiong'an Group Ecological Construction Investment Co.,Ltd.,Baoding 071700,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381 [2]中国雄安集团生态建设投资有限公司,河北保定071700

出　　处：《净水技术》2022年第S01期300-304,共5页Water Purification Technology

摘　　要：北方某城市区域排水系统为合流制,旱季污水与雨季溢流污水直流排入水体,导致水体黑臭。为消除水体黑臭的问题,采取了一系列措施,其中在该城市管道末端建设合流制调蓄池截流系统溢流污水是有效手段之一。设计调蓄池的容积为10000 m^(3),采用真空冲洗,储存的溢流污水用放空泵排放至旁边的污水截流干管,调蓄池设置离子除臭系统。辅助用房合建于调蓄池上部,可节约占地。格栅井和截流井集约设计,为精确控制污水截流量,井内安装限流闸门;为避免清渣及栅渣外运,采用水平溢流格栅,环境效益好。工程实施后可以有效截流污水和初期雨水进入河道,减轻河道的污染。Drainage system of a northern city is a combined system.Overflowed sewage in dry season and rainy season is discharged into river,resulting in black and smelly of river.In order to eliminate this problem,a series of measures have been taken,one of the effective measures is to build a rainwater detention tank at the end of the city to intercept overflow sewage.The volume of designed detention tank is 10000 m^(3).It is adopted vacuum washing,and stored overflow sewage is discharged to nearby intercepting pipe with pumps.Detention tank is equipped with an ion deodorization system.Auxiliary room is built in the upper part of detention tank to save land.Intercepting well and bar screen well are designed intensively,limited flow gate is installed in the well to precisely control the amount of wastewater.In order to avoid slag removal and grid slag outward transportation,horizontal overflow bar screen is adopted,which has good environmental benefits.After the implementation of project,sewage and initial rainwater can be effectively intercepted into river to reduce pollution.

关 键 词：雨水调蓄池 合流制 真空冲洗 截流格栅井 截流倍数 

分 类 号：TU991.3[建筑科学—市政工程]