基于PLC的油水处理系统..doc

摘 要 关键词： Abstract With the rapid development of science and technology in recent years，PLC applications are continually deepening，at the same time bring benefits at the new moon of traditional control and measurement update.It has a simple structure, easy programming, high reliability, has been widely used for industrial process and location of the automatic control. According to statistics,the programmable controller is the most widely used industrial automation device, a device. Experts believe that the PLC will become the main means of industrial controls and one of important infrastructure, PLC, robotics, CAD / CAM will be the three pillars of industrial production. The use of the PLC has the characteristics of environmental adaptability, while its internal timer resources are very rich, the current widespread use of oil-water separator for precise control, particularly control of oil fields in the polluted water can be easily. So now more and more oil-water separator will be used in the PLC that can greatly reduce labor costs, and now pay attention to energy conservation, with the help of the PLC, can reduce the amount of oil in wastewater, to reduce the oily water on the surrounding environment Impactand reduce business costs and increase the economic effects. Meanwhile, PLC itself also has a communications networking capabilities, the PLC will be composed of different devices with a LAN, unified management, can reduce the processing time of equipment, scientific management to achieve. In real-time detection and application of automatic control systems PLC, PLC is often used as a core component, only the PLC is not enough knowledge, but also according to the specific hardware architecture, and application-specific software features object combination, to be improved. Is vividly demonstrated in the field of oil water separation of PLC in the practical application. Key words：PLC Oil Sewage Environmental Separate Intelligent 目 录 摘 要 I