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对无锡市XZ片区污水系统实施了在线流量监测,详细介绍了监测数据核查修正的过程,分析了污水泵站、系统干管以及典型小区的污水排放规律,以期加深对系统污水管网排水特性的认识,掌握系统的旱天、雨天运行规律。结果表明:XZ片区污水系统存在显著的雨水混接现象;下游基本都处于过载状态,管网负荷偏大且坡度平缓,管网水力状态主要受泵站启闭状态影响,表现出相似的水深-流速变化规律;干管流速不超过0.3 m/s,易发生淤积。监测结果为污水系统的管理和建模提供可靠的数据支撑。
On-line flow monitoring was carried out in XZ Area Wastewater System in Wuxi City. The process of verification and correction of monitoring data was introduced in detail. The discharge rules of sewage pumping station, system main pipe and typical residential area were analyzed in order to deepen the drainage characteristics of the system sewage pipe network Understand, master the dry days of the system, rainy day operating rules. The results show that there is a significant phenomenon of mixed mixing of rainwater in the wastewater system of XZ area; the downstream are almost overloaded, the load on the pipe network is large and the slope is gentle, the hydraulic state of the pipe network is mainly affected by the opening and closing status of the pump station, Flow rate variation; dry pipe flow rate does not exceed 0.3 m / s, prone to deposition. The monitoring results provide reliable data support for wastewater system management and modeling.