| The oil-gas separation equipment , which puts auxiliary electric power transformer malfunction diagnose into practice, is an auxiliary equipment in electric system. It is very necessary to improve the reliability of running the entire electric system safely.First, this article simply introduced the overall system design of oil-gas separation equipment. It is divided into three parts: temperature control, the part of electromagnetic value controller and human-machine Interface.The article introduced the basic theories and application technology of the MCU (Micro Controller Unit) in the control systems of temperature. The main purpose is to design a temperature controller to complete the temperature's A/D change. Besides, the controller has the function of being given by own machine and top machine. This system has the feature of the thermometric, upper limit to report to the police, bottom the report to the police, temperature control and appearance.Then, the article analyzed the electromagnetic valve controller system which can mainly do the following procedures: clean, doff gas, take off gas, reclaim gas. The electromagnetic valve controller system is designed based on the software and hardware of the single slice machine AT89C51. The single slice machine correspondence agreement and the design of procedure after the electric appliances are based on the foundation of hardware terrace. The electromagnetic valve controller system realizes the communication between control panel and the main board in monolithic machine. Moreover, it can design the program of the relay drive.Finally, the article analyzed the human-machine interface including system design, liquid crystal display and the menu demonstration. System design is set up to carry out a little content modification and preserving in the device; demonstration and realization of LCD and menu, the keyboard interface design.The entire device is based on the implanting style, therefore it is concise and easy-understanding, and it can control directly and make well maintenance.The experiment showed that this system had the simple control circuit, good anti-jamming ability, good stable and high practical value. |