削峰调蓄池在雨水系统提标改造中的应用

Application of Peak Shaving Storage Tank in Upgrading & Reconstruction of Rainwater System

在上海陆家嘴张家浜雨水系统提标改造过程中,受现状轨道交通高程限制,雨水主管不能按规划管径实施,致使局部地势较低区域造成地面积水。采用InfoWorks软件模拟管网系统内工况,设置削峰调蓄池、增加连通管接入相邻雨水系统,并对调蓄池进水、出水和运行模式进行分析论证。结果表明:当涝点产生积水时开启调蓄池,能使调蓄池发挥最大功效;采用重力流和压力流结合的放空方式,加快排空,提高调蓄池的使用效率,节约能耗;并提出1种调蓄池全自动控制的运行模式。

During the upgrading and reconstruction of the rainwater system in Zhangjiabang,Lujiazui,Shanghai,due to the elevation limit of the current rail transit,the rainwater main pipe cannot be implemented according to the planned pipe diameter,resulting in ponding on the ground in local low-lying areas.InfoWorks software is used to simulate the working conditions in the pipe network system,set the peak shaving storage tank,and increase the connecting pipe to connect with the adjacent rainwater system,and analyze and demonstrate the water inlet,outlet and operation mode of the storage tank.The results show that when the waterlogging point produces water,opening the storage tank can make the storage tank play the maximum effect.The combination of gravity flow and pressure flow is adopted to speed up the emptying,improve the efficiency of the storage tank and save energy consumption.A fully automatic control operation mode of the storage tank is proposed.