The process of pollutant overflow from the JXB sewer system and the event mean concentrations(EMCs) of overflows in Shanghai were studied, and the first flush effects were discussed.

为此，重点研究了上海中心城区某合流制排水区域JXB系统雨天污染物溢流的出流过程和污染物的事件平均浓度，并探讨了溢流污染物的初期效应。

This paper analyzes the failure in detail, discusses the theory of EMCS, the communication of intelligent low-pressure and the control theory of wind valve, and attempts a solution to the malfunction.

对发现的问题及故障原因进行了详细分析，讨论了机电设备控制系统与智能低压的通讯、风阀的控制原理，提出了解决方案。