城市二次供水设备关键技术研究

Key Technology Research on Urban Secondary Water Supply Equipment

当前城市二次供水设备发展已很成熟,但供水控制器在功能上还存在着一些不足,通过深入研究二次供水,以西门子S7-200 PLC为控制核心,对二次供水设备控制器进行优化设计,设计了多功能无负压供水设备控制系统,可实现现场和远程对供水状态和设备运行状况的。当设备发生故障时,能自动采取有效措施,实现不间断供水的目的。通过对供水设备的休眠方式进行研究,最终设计了一种有效实用的休眠方式;采用双目标压力自动切换控制,保证在管网压力不稳定的情况下,也能实现良好的供水效果。

Secondary water supply in urban secondary water supply equipment development has been very mature,but the water supply controller function,there are still some deficiencies,through in-depth research.This paper for the control of the core of the secondary water supply device controller,Siemens S7-200 PLC optimized design,design multifunction no negative pres- sure water supply equipment,control systems,on-site and remote water supply status and equipment operating conditions. When the device fails,can automatically take effective measures to achieve the purpose of uninterrupted water supply.Study by the sleep mode of the water supply equipment,the final design of an effective and practical hibernation mode;dual target pressure automatic switching control.