污水处理自控系统

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The main control objects of the automatic sewage treatment control system are: regulation tank, grille space, sand settling tank, biological reaction tank, biological ponds, pumps in subsystems such as sedimentation tank, chlorine dosing room, sludge dewatering, thickening tank, blower room, etc. Valves, gates, sand removers, grille wells and walking sand suction, sand water separation device. The system can not only centrally control the start and stop of the equipment in the sewage treatment process according to a certain program, time and logic relationship, The system can also collect the water quality of various aspects of sewage treatment by on-line monitoring instruments such as PH meter, dissolved oxygen meter, sludge densimeter, turbidimeter, etc. According to these data, the operation of aeration equipment, dosing equipment, mixing equipment and drainage equipment are controlled automatically, and the effluent quality of sewage treatment plant is monitored. At the same time, the system can monitor the state of the power supply system, statistics the energy consumption of the whole plant, as well as fault diagnosis records, production report records and other functions.

System features:
High reliability and high stability: the whole system selects mature products which accord with industrial standard, PLC module has self-diagnosis and fault-tolerant function, PLC control cabinet has perfect anti-interference and lightning protection technical measures; The equipment of the central control room and the local control station has the function of power supply redundancy, and the local control station can complete the basic local control independently in the manual mode even when the upper computer fails or the communication is interrupted.

Openness: the system is open to users. The user can complete the increase or decrease of the equipment, the selection of the control scheme, the expansion and maintenance of the system in a wide range of equipment environment. All the hardware interfaces and software protocols are designed and compiled according to the open standards.

Practical operation: configuration software and programming software are all Chinese interface, rich drawing functions, so that users clearly understand the operation of the sewage treatment plant in each section, the details of the branches of the fault alarm points, The operator can issue various instructions or change the screen only through the mouse, and the user can also access the data of any node in the network through the network of the host computer.Trapezoidal monitoring tools can also monitor industrial Ethernet and even controller network PLC ladder diagram program, without the need for field operation, to achieve a truly seamless connection.



污水处理自动化控制系统主要控制对象为:调节池、格栅间、沉砂池、生物反应池、生物虑池,沉淀池、加氯间、污泥脱水、浓缩池、鼓风机房等子系统中的泵,阀、闸、除砂机、格栅井和行走式吸砂、砂水分离装置。系统不仅能根据一定的程序、时间和逻辑关系集中控制污水处理过程中的设备起停,系统还能够通过在线监测仪表如PH计、溶解氧计、污泥浓度计、浊度仪等采集污水处理各环节水质情况,并且根据这些数据自动控制曝气设备、加药设备、搅拌设备以及排水设备的运行,并对污水处理厂出水水质进行监控。同时,系统能监测全厂供电系统的状态,统计全厂能耗,还有运行故障诊断记录、生产报表记录等功能。


系统特点:

高可靠与高稳定性:整个系统选用符合工业级标准的成熟定型产品;PLC模块具有自诊断与容错功能;PLC控制柜内具有完善的抗干扰及防雷等技术措施;中控室及现地控制站设备均具备供电冗余功能;即使在上位机发生故障或通信中断时,现地控制站亦可以在手动模式下独立完成基本局部控制;


开放性:系统对用户是开放的。设备的增减、控制方案的选取、系统的扩缩与维护等,用户都可以在广泛的设备环境下便利地自己完成。所有硬件接口,软件协议全部按开放性的标准设计、编制;


操作的实用性:组态软件和编程软件都是全中文界面,丰富的图画功能,使用户清晰的了解污水处理厂各工段的运行情况,故障报警点的分支细节,使操作员仅通过鼠标便可发布各种指令或换画面;用户还可通过上位机的网络访问网络内任一节点的数据,梯形监控工具亦可以监控工业以太网甚至控制器网络内各站PLC梯形图程序,而不需要现场操作,实现真正的无缝连接。