《化工仪表及自动化》课程论文

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1、《化工仪表及自动化》课程论文题目：DCS技术在化工自动控制中的应用学院：生命科学与化学学院姓名：杨国涛专业：化学工程与工艺学号：292090137任课教师：秦云霞订稿日期：2011年11月10日14原创性声明本人郑重声明：本人所呈交的论文是在指导教师的指导下独立进行研究所取得的成果。论文中凡是引用他人已经发表或未经发表的成果、数据、观点等均已明确注明出处。除文中已经注明引用的内容外，不包含任何其他个人或集体已经发表或撰写过的科研成果。本声明的法律责任由本人承担。论文作者签名：杨国涛2011年11月10日论文指导教师签名：14目录原创性

2、声明···········································1目录···············································2摘要···············································3关键词···············································31.化工行业基本现状···································41.1我国化工企业自动控制水平现状··········

3、··········41.2化工行业特点····································42.DCS的概念及特点···································52.1DCS的概念······································52.2DCS的特点······································53.DCS的体系结构和系统的功能·························63.1DCS的体系结构14···············

4、···················63.2DCS的体系结构的技术特点························63.3系统的功能······································74.DCS在化工行业中的应用和市场占有情况···············84.1应用水平········································84.2市场占有情况····································85.DCS技术在化工行业中的应用情况·············

5、·······85.1炼油厂DCS应用情况·····························85.2DCS在乙烯装置上的应用情况······················95.3聚氯乙烯（PVC）装置中DCS的应用情况·············96.DCS技术的发展展望·································96.1新型DCS的特征·································106.2新型DCS的突出优点·····························106.3DCS

6、技术的发展关键问题·························10参考文献···········································12致14谢···········································13DCS技术在化工自动控制中的应用杨国涛（甘肃省天水师范学院741001）摘要最近十多年以来，自动控制技术在我国石油化工行业中得到了广泛应用，特别是在采用DCS技术进行过程控制方面取得了长足进展。据统计，在我国石化企业中已有200多套DCS投入使用。这些系统在提高企业生产自

7、动化水平、保证安全稳定生产、提高控制精度及节能降耗等方面发挥了重要作用。关键词DCS；控制系统；石油；化工；塑料合成ApplicationofDCSinChemicalAutocontrolSystemYangGuotao（TianshuiNormalUniversityofGansuProvince，741001）AbstractInthepasttenyears,automaticcontroltechnologyhasbeenwidelyusedinthepetrochemicalindustryofChina,especial

8、lyintheuseofDCSforprocesscontroltechnologyhasmadeconsiderableprogress.Accordingtostatistics,morethan200setsofD