排水系统提质增效的节点改造技术及其应用实践

The application of node reconstruction technology for improving the performance of urban drainage system

我国大部分城市建成区排水系统,均不同程度存在各种问题。通过对城市排水管网进行合理管理,对关键节点进行优化改造、进行雨污分流,能够有效地控制雨污水溢流和溢流污染,使城市综合排水能效得到一定程度的提升。着重讨论昆明市小路沟雨污分流改造项目方案,该项目通过控制进入污水管网的截流量,旨在控制溢流频率的同时保证行洪安全。同时,本文就管网各节点改造的要求、功效及后期运维要求进行探讨,为今后管网节点改造的设计、建造及运管提供参考。

There are various problems with drainage systems in built-up areas in most cities in China.Through rational management of urban drainage pipe network,optimization and reconstruction of key nodes,and rain and sewage diversion,rainwater overflow and overflow pollution can be effectively controlled,and urban comprehensive drainage energy efficiency will be improved to a certain extent.This article focuses on discussing the Xiaolugou rainwater and sewage diversion reconstruction project in Kunming.The project aims to control the overflow frequency and ensure flood safety by controlling the interception flow into the sewage pipe network.Meanwhile,this article discusses the requirements,efficiency,and subsequently the operation and maintenance requirements of each node of the pipe network transformation,and hope to provide references for the design,construction,and operation and management of pipe network node reconstruction in the future.