Study On PLC Control System Of Wood Gasification

In view of the current energy crisis, wood, as a kind of renewable resources will have thevery big development space. Wood gasification, as a good method of efficient utilization of thewood resources, has a good application prospect in the heat supply, gas supply and powergeneration. In wood gasification industry, the complicated structure of the wood gasificationfurnace, and the immature process of the wood gasification, makes the automation level ofChinese wood gasification technology is not very high. But, along with the development ofcomputer technology and the widely used of the industrial control system, the subject for woodgasification automatic control will have the very good research value and application prospect.This topic comprehensive analyze the research significance of the wood gasificationcontrol system, realizing the wood gasification process parameters. According to the woodgasification development situation at home and abroad, the design is developed based on PLCcontrol system of wood gasification. The system selects OMRON Corporation C200HE PLC asthe core control equipment, with the use of temperature and pressure sensors testing parameters,combined with the touch screen man-machine interface, to achieves the online data detection ofwood gasification process, parameter curve real-time display, adjusting the on-line controlparameters, soft button control, data management and accident alarm and a series of functions.Through this control system, we can enhance the automation of wood gasification production,reduce the cost of wood gasification, and get more pure gasification products, making woodgasification power generation technology can go smoothly.This topic of software systems includes the establishment of hand/automatic controlprogram and the design of the touch screen man-machine interface. PLC system captures thedata, comparing to the initial parameter value of the wood gasification, through the temperatureand pressure sensors. According to the comparison results, the PLC outputs the correspondingwork instruction, so as to control the corresponding actuator movement, realizing the woodgasification process runs automatically. Touch screen man-machine interface can display thereal-time various operation parameters of wood gasfications, record possible accident alarminformation, and provides convenient for operators to monitor the whole process of woodgasification. Combined with the control program and touch screen man-machine interface, thecontrol system has a high degree of automation, humanized interface and simple operationadvantages, which lays a good foundation of the development for the wood gasification and hasthe good promotion value.