Acrylonitrile Plant Unit Antisurge Control System Design

Chemical Plant acrylonitrile unit C-101,C-401A/B unit is the core equipment of the acrylonitrile unit,once the downtime will result in the lay-off of the entire device.Present three sets of units interlock control system implemented by the relay has been put into use 26 years,the unit vibration,displacement and speed instructions to achieve site control room 3500,anti-surge control,unit by the local regulator for the to ensure the smooth operation of the acrylonitrile unit,the three sets of unit-site transformation instructions to control the interlocking parts and interior monitoring system for the ITCC unit control system.C-101,C-401A/B unit is the core of the acrylonitrile unit,the action of the interlocking system,will cause the device to stop.The original instrumentation for thermal resistors,switches,and 3500 monitoring system composed of interlocking logic control circuit and the relay.This paper briefly introduces the three units to control the status quo,and then introduced TRICONEX the the ITCC control system,the TS3000 control system to achieve the anti-surge control,speed control,plant control,load control unit interlock.The the ITCC anti-surge control system,according to the load operation,the dynamic of the anti-surge valve to adjust,maintain optimal amount of feedback may increase the efficiency of plant operation to reduce steam consumption.Acrylonitrile plant unit control system optimized and improved production date,the entire control process is continuous and stable,vivid and accurate monitoring interface,the control system has good robustness,stability and fast,the system has a strong anti-interference ability and tracking capabilities.ensure the safe and stable production of acrylonitrile unit.