炼油企业多分辨率数据校正建模方法的研究  

Research on multi-resolution modeling approach of data rectification in oil refinery

作　　者：石畅[1] 张泉灵[1] 

机构地区：[1]浙江大学智能系统与控制研究所,浙江杭州310027

出　　处：《计算机与应用化学》2012年第9期1046-1050,共5页Computers and Applied Chemistry

基　　金：国家科技支撑计划资助项目(2012BAF10B04);中央高校基本科研业务费专项资金资助

摘　　要：准确的物料流向信息及其平衡方程是数据校正建模的关键。本文根据炼厂两类基本设备模型,借鉴图论中邻接矩阵的概念,提出了用于完整描述全局物料流向信息及其平衡关系的物流邻接矩阵。该矩阵分别以全部设备的进、出料线作为矩阵的行和列;每一行表示对应出料线的流股去向,每一列表示对应进料线的流股来源;每个元素按照其行列位置,表示其对应的进、出料线是否相连。通过物流邻接矩阵所包含的信息及其设备本身的进出料平衡关系,可以方便、准确地建立数据校正模型。按照炼厂物料平衡的实际需求,对物流邻接矩阵进行相应变换,完成不同时间、空间分辨率下物料平衡关系的归并和映射,实现全厂级多分辨率数据校正模型的建立。最后通过某炼厂局部生产过程的应用实例,验证了该建模方法的正确性和实用性。The accurate material flow directions and mass balance equations are the keys to data rectification modeling. Based on two kinds of general equipment models in oil refinery, the concept of material flow adjacency matrix is proposed to describe the global material flow directions and mass balance equations. All feed lines of equipment in the refinery are set to be the row members of material flow adjacency matrix and all discharge lines are set to be the column members. Each row of this matrix represents the destination of a discharge line while each column represents the source of a feed line. Each element in this matrix determines whether the corresponding discharge line and feed line are connective. Based on the information included in the material flow adjacency matrix as well as the input and output material balance of all equipment, the data rectification model can be built accurately and conveniently. According to the practical demand of material balance results, the material flow adjacency matrix is converted, and then the multi-resolution data rectification models with different time and spatial scales are obtained. At the end of this paper, an application example demonstrates the correctness and practicability of the proposed method.

关 键 词：多分辨率建模 数据校正 物料平衡 

分 类 号：TQ015.9[化学工程]