The Development And Research Of The Control System Of Automatic Train Ration Loading

Ration loading of Petrochemical liquid material pipes is Well-established general system devices in Petrochemical Enterprises and has a long history of use. The conventional ration loading of Petrochemical liquid material pipes is composed of Power source material Explorer and loading pipes system. The whole process of loading operations is operated by observation of workers on-site and manual operation.Ration loading control system combines automation instrumentation control technology, Computer control technology, network technology, Communication Technology and traditional pipe loading system technology, achieving automatic distributed control and centralized management function of liquid material loading system.Based on the control system of the automatic fixed amount packs of cars reconstructing of LPG, -35#diesel oil and liquid wax in CNPC, through research and analysis of the technical process, a monitoring system including monitoring software and working site controller was developed. Using PLC widely in this system for the security and reliability that are always paid more attention in industrial control field. The people oriented monitoring software is developed by configuration software with the advantages of low-cost and short developing period.In this paper, the total design plan, hardware configuration and network communication plan of the automatic fixed amount packs of cars monitoring system are given. The computer monitoring software of public parameters based on InTouch is developed. The man-machine interface of the configuration software makes the operation of the control system swifter and more humanization. And GE Rx3i PLC is used as the lower level controller on site. The control system has many functions including remote control, alarm, data processing, history trend display, automatic report printing. After the installation and the commissioning, the system works steadily and well now.