Design And Implementation Of Automatic Control System In Sewage Treatment Plant

Along with social progress, economic development, constantly improve people’s living standards, the ability and scope of people to improve the ecological environment of constantly expanding, Sewage treatment in the environmental improvement to occupy an important position, but China’s sewage treatment industry compared with foreign countries is relatively backward, automation control is still in the initial stage, therefore, the research of the computer control technology of sewage treatment process control system based on automation, has the important practical significance.This paper introduces the related knowledge, the sewage treatment process, China’s sewage treatment automatic control system and the research status and development trend of wastewater treatment. Control and signal access the design schemes of the main function, the realization of Xi’an City sixth sewage treatment plant automation control system structure and system automation system and idea, sewage plant key equipment is described in detail.Through the Xi’an city sixth sewage treatment plant process characteristics and environmental conditions, plant analysis Automatic control system, and control system, the automation of the plant components and equipment type selection of instrumentation system is described, mainly explains the setting of the station and equipment control field control of automatic control system in the automatic control system, through the software system to realize the display of data acquisition, control, sewage treatment system process, and the abnormal alarm, the daily report print etc.. The control process, which relates to the display and alarm, event driven operating window function, production index monitoring, equipment running parameter monitoring, parameter setting are analyzed.