变送器故障检测技术在乙烯装置SIS中的应用

APPLICATION OF TRANSMITTER FAULT DETECTION TECHNOLOGY IN THE SIS OF ETHYLENE PLANT

主要介绍了变送器故障检测技术的实现方式及在康吉森TS3000 SIS系统中的具体应用。分析了变送器故障信号的产生,康吉森TS3000对变送器故障信号的检测及该信号在系统的"2oo3"(三取二)安全逻辑中的使用。同时引入了NAMUR NE43推荐标准,对SIS系统中所有的变送器进行了剖析,找出并改正变送器故障检测在系统应用的隐患,在满足联锁安全性的前提下,提高了联锁的可用性,保障乙烯装置"安稳长满优"运行。

This article introduces the working mode and the application of transmitter fault detection technology in the SIS of Consen TS3000 series,and analyzes how the fault detection signal produced and how to recognize and use it correctly in the SIS of Consen TS3000 series. At the same time,this article introduces NAMUR NE 43 and uses it to analyze all the transmitters in SIS to find and eliminate the risks in transmitter fault detection. On the premise of the high safety of SIS interlock,the application of transmitter fault detection in SIS promotes the availability of the interlock and ensures the safe,stable,optimum and long-term operation of the ethylene plant at full capacity.