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CO变压吸附生产过程控制程序复杂,防爆要求较高。应用PR0FIBUS现场总线技术对其进行控制,不仅能满足以上的工艺要求,而且具有数字双向传输、仪表信息丰富、安装调试简化、利于实现管控一体化等许多优越性,在国内外同类装置中尚属首例。文章就该控制系统的设计和实施进行阐述,并对其中应用的本安型现场总线过程接口(IS-RPI)作了相应的说明。
CO pressure swing adsorption process control procedures are complex, higher explosion-proof. Application of PR0FIBUS fieldbus technology to control it, not only to meet the above process requirements, but also with the number of bi-directional transmission, instrumentation, information rich, simplifying installation and commissioning, to achieve the integration of management and control and many other advantages of similar devices at home and abroad are still The first case. The article describes the design and implementation of the control system, and describes the intrinsically safe fieldbus process interface (IS-RPI) used in the system.