间歇过程动态SDG建模  

Active modeling approach for batch process based on SDG

作　　者：张贝克[1] 郑然[1] 马昕[1] 吴重光[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《化工学报》2008年第7期1863-1868,共6页CIESC Journal

基　　金：黑龙江省科技攻关项目(GB06A106)~~

摘　　要：At present, the modeling method used in the batch process by signed directed graph (SDG) is oriented to the process in normal running state, which cannot describe the operating logic in abnormal running state, and it is inadequate to cover all faults and hazards.When the SDG model used for computer-aided hazard and operability study (HAZOP) is built for the complex chemical process including the batch process, the model of the batch process cannot always be associated to that of the other continuous systems.In order to meet the demand of computer-aided HAZOP, the paper presents a dynamic SDG modeling method based on the present SDG-HAZOP modeling method to deal with the batch process.The idea and procedures of dynamic modeling were elaborated.A real case about the fly ash removal in a complex process of coal-to-oil was modeled and analyzed by using the proposed method, which can resolve two problems at the same time: the sequential model about the SDG modeling of the batch process and the maximal covering of the faults and hazards.At present, the modeling method used in the batch process by signed directed graph （SDG） is oriented to the process in normal running state, which cannot describe the operating logic in abnormal running state, and it is inadequate to cover all faults and hazards. When the SDG model used for computer- aided hazard and operability study （HAZOP） is built for the complex chemical process including the batch process, the model of the batch process cannot always be associated to that of the other continuous systems. In order to meet the demand of computer-aided HAZOP, the paper presents a dynamic SDG modeling method based on the present SDG-HAZOP modeling method to deal with the batch process. The idea and procedures of dynamic modeling were elaborated. A real case about the fly ash removal in a complex process of coal-to-oil was modeled and analyzed by using the proposed method, which can resolve two problems at the same time： the sequential model about the SDG modeling of the batch process and the maximal covering of the faults and hazards.

关 键 词：间歇过程 HAZOP SDG 飞灰脱除 建模方法 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]