CAJ | 학술논문

根据共沸物组成随压力改变而变化的特性，设计了单塔可进行减压与加压两种操作方式的精馏装置，用于变压精馏分离乙腈-水的共沸物，以获得高纯乙腈。同时，应用西门子S7-300系列PLC及工业自动化监控组态软件iFIX，实现对乙腈变压精馏实验装置的实时监测和自动控制，控制系统运行稳定，实时性强，进一步提高了该精馏装置操作的安全性与便利性。装置及系统应用于化学工程与工艺专业本科生的实验教学及化学工程专业研究生的理论研究，效果优良。
근거공비물조성수압력개변이변화적특성，설계료단탑가진행감압여가압량충조작방식적정류장치，용우변압정류분리을정-수적공비물，이획득고순을정。동시，응용서문자S7-300계렬PLC급공업자동화감공조태연건iFIX，실현대을정변압정류실험장치적실시감측화자동공제，공제계통운행은정，실시성강，진일보제고료해정류장치조작적안전성여편리성。장치급계통응용우화학공정여공예전업본과생적실험교학급화학공정전업연구생적이론연구，효과우량。
According to the feature that composition of the azeotrope would be changed with the change of pressure , an experimental device of pressure-swing distillation was designed to separate the acetonitrile-water azeotrope and to obtain high purity product , which can be operated under the conditions of vacuum and pressure .Meanwhile , the real-time monitoring and supervisory control system was con-structed based on S 7-300 PLC of Siemens and industrial automation configuration software-iFIX for fur-ther enhancing the safety and convenience of the distillation device operation , which ensure that the sys-tem run stably and real-time.The experimental device and control system have a good effect on experi-mental teaching for undergraduates who majored in chemical engineering and technology and for postgrad -uates who majored in chemical engineering in theory research .