MATLAB在化工模擬控制軟件開發(fā)中應(yīng)用的探討.doc

1、MATLAB在化工模擬控制軟件開發(fā)中應(yīng)用的探討This article is contributed by s016357Pdf documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view.Volume 3, twenty-sixth, 2009th, SeptemberThreeJournal of Hebei Academy of Sciences, Jour

2、nal, of, t, he, Hebei, Academy, of, SciencesVol., 26, No. 3, Sep. 2009Article number: 1001-9383 (2009) 03 - 0076 - 03Application of MATL AB in development of chemical simulation control softwareLi Guoming, Song Yao(Department of chemical and pharmaceutical engineering, Shijiazhuang Vocational Colleg

3、e of Foreign Trade, Hebei, Shijiazhuang 050000)pickTo discuss the application of MA TL AB in the reactor temperature simulation tool software, and analyze the simulation control of MA, TL and AB in chemical productionFor software development advantages, such as: data computing, graphics processing a

4、bility, can generate various types of 2D and 3D graphics; can be widely used in the research and development of chemical engineering, mathematical model identification, parameter estimation and optimization of chemical process control design, process parameter optimization, the optimization of chemi

5、cal process control and optimal scheduling; support mixed programming, easy programming and most advanced programming languages. The application of reactor temperature simulation tool reflects the wide application prospect of MA, TL and AB in the chemical industry. Key words: MA, TL, AB; simulation;

6、 optimization; software development; graph classification number: TP311; document identification code: AThe, discussion, of, MATLAB, application, in, the, development, of, s, chemical, simulation, control, sof, t, ware(S Hi, J, I, AZ, Huan, Forei, GN, Economic, an, D, T, RA, De, ocational, College,

7、V, S, hi, J, I, AZ, Huan, G, Hebei, G, Chi, Na)Abstract: Thro ugh analysis t he sit uatio n of MA TL AB sof t ware s applicatio n in developed temperat ure reactor simulatio n tools we und t he fo MA TL AB had an unparalleled advantage in develop ment of, chemical simulatio n co nt rol soft ware. Su

8、ch as UL data calculatio n: powerf capabilit y, powerf ul grap hics p rocessing capabilit y, forming all t ypes of t wo2dimensio nal, t hree2dimensio nal grap hics, widely use in quip ment Thro ugh t he. Applicatio n, it shows t hat t he MA TL AB has wide applicatio n p ro SPECT s. If Keywords: MA T

9、L AB; Simulatio n; Optimizatio n; Soft ware develop ment chemical research and develop ment, chemical mat hematical mo del of parameter estimatio n and identifi2CaTiO n,化工過程設(shè)計優(yōu)化的過程，協(xié)同優(yōu)化控制參數(shù)，optimiza2 CAL設(shè)備設(shè)計和制造技術(shù)將大大提高。在保證仿真工具”不僅是一個簡單的應(yīng)用T他MA TL AB軟件在化學(xué)工程E2無論是新化工生產(chǎn)線的設(shè)計還是對現(xiàn)有化工設(shè)備和過程的分析都需要建立化工過程模型，然后以實際系

10、統(tǒng)的數(shù)據(jù)帶入模型，通過數(shù)據(jù)處理得到模型中的參數(shù)模型建立以后，一方面可以對。3收稿日期：2009 - 06 - 30化工過程控制和優(yōu)化調(diào)度n TiO，輔助混合P ro編程和編程語言high2level CO N2方便與他大部分的混合編程?！胺磻?yīng)堆正相關(guān)他的強大的工具可以完全用化學(xué)技術(shù)如研究員，我國chemi2 UNT作者簡介：李國名（1971 -），男，河北石家莊人，講師，研究方向為化工設(shè)計。李guo2ming，宋耀現(xiàn)有化工生產(chǎn)線進行模擬，以判斷生產(chǎn)狀態(tài)是否處于最優(yōu)，然后進行生產(chǎn)參數(shù)的調(diào)整，使生產(chǎn)過程盡可能接近最優(yōu)狀態(tài)，以達到節(jié)能降耗的目的另一方面在新化工生產(chǎn)線設(shè)計過程中，通過用模。3期第李國名

11、等：MA TL AB在化工模擬控制軟件開發(fā)中應(yīng)用的探討七十七型模擬可以達到最優(yōu)設(shè)計。所以化工過程模擬是化工過程與分析、化工過程研究與開發(fā)、模擬預(yù)測、優(yōu)化和控制生產(chǎn)過程的基礎(chǔ)。然而無論是化工過程模型的建立，還是化工過程模型的使用都需要大量的計算過程。由于模型中包含大量的非線性方程（組）、常微分方程（組）、偏微分方程（組）等計算工作量大，計算過程復(fù)雜，而化工過程優(yōu)化過程涉及的計算量更是巨大，所以化工過程的模型化的使用受到很大限制。隨著計算機技術(shù)在各行各業(yè)應(yīng)用越來越普遍，計算機技術(shù)為化工過程模擬提供了有力的支持。已經(jīng)出現(xiàn)了一些商用化工模擬軟件，如：一個花、II，可用于工廠物料衡算和能量衡算，親這類軟

12、件通用性較好，功能強大。但這些軟件價格昂貴而且軟件中不包含對特定情況需要的專用程序模塊，比如建立一個精餾塔的模型，對一個特定化工過程進行模擬等，在這種情況下選擇自己編程進行過程模擬，Not only can solve the problem, but also for chemical technology personnel to master these techniques, is conducive to improving the ability to solve problems, in this regard, MA TL AB has an unparalleled adva

13、ntage.1) MA, TL, AB, solving nonlinear equations (groups) in Chemical EngineeringIncluding the role of multicomponent mixed solution of the boiling point, the saturated vapor pressure of the fluid in the pipeline resistance calculation; calculation; multicomponent equilibrium stage separation simula

14、tion; equilibrium solution chemical equilibrium constant method; CSTR steady state operation of the operation analysis. 2) including the application of MA TL AB solution of the differential equation in the model in the calculation of chemical batch reactor; calculation of piston flow reactor; dynami

15、c simulation of CSTR; steady state one-dimensional heat conduction problem; countercurrent wall cooled fixed bed reactor model; dispersion model of fixed bed reactor; process control. 3) the application of MA TL AB partial differential equation in chemical model includes heat transfer calculation, d

16、iffusion transfer calculation, fluid mechanics calculation and so on. (2) interpolation, fitting, numerical differentiation, and numerical integration in MA, TL, AB; role in chemical engineering 1Interpolation, fitting, numerical differentiation and numerical product in MA, TL and ABIn the calculati

17、on of chemical properties including tabular data interpolation; discrete experimental data; calculate the enthalpy and entropy of fluid state equation; differential reaction kinetic equation; calculation of isothermal piston flow reactor; micro segregation reactor calculation (3) application of MA T

18、L in AB in the optimization of Chemical EngineeringThe MA TL AB optimization toolbox contains a large number of functions, but1 features of MA TL AB 1MA TL AB has the advantages of simple usage, flexibility and strong structure,It is widely used in chemical research and development, parameter estima

19、tion and identification of chemical mathematics model, optimization design of chemical process, optimization of process control parameters, optimization of chemical process control and optimal operation.Scalability is becoming the preferred language tool in technology computing, view interaction sys

20、tems, and programs. It has the following features: support multi platform operating system, such as Windows, Nix etc.; with U applications, can be used for numerical computation and symbolic computation, data analysis, engineering drawing, modeling and simulation, control system design; graphics pro

21、cessing ability strong, can generate various types of two dimensional and three-dimensional graphics; advanced and simple the program environment, easy to learn programming language, programming efficiency is very high; rich toolbox and module set, a toolbox and Simulink simulation module for many s

22、pecific applications; support mixed programming, convenient and most advanced programming Cheng Yuyan (such as: C, J + + AVA, Pascal and Basic mixed programming, etc.) give full play to the characteristics of the two.3 MATLAB in the development of chemical simulation control softwareApplication exam

23、pleBiochemical reaction kettle is the key equipment of biological reaction in pharmaceutical enterprises. Temperature is the most important index in biological reaction control index,The reactor temperature simulation tool developed by L AB is specially designed for use inApplication of 2 MA TL AB i

24、n chemical simulation(1) a large number of nonlinear equations are often encountered in chemical models. L and AB have many functions for these equations. They use very simple (Group), ordinary differential equations (groups), partial differential equations (groups), MA, T2Convenient and fast to ope

25、rate.L AB tools in the simulation toolbox and neural network toolboxThe temperature control influences the yield directly. The temperature of the reaction kettle is simulated and controlled by MA T2. The main interface is shown in figure 1. The temperature control of the reaction kettle is required

26、to be between 7-10 DEG C, and the cooling water is cooled through the jacket of the reactor and the coil inside the kettle to cool the reactor. The software has realized the following functions: (1) the simulation equation is established. The temperature in the reaction vessel is displayed in an int

27、uitive graphical manner for real-time monitoring. Meanwhile, the cooling water flow rate, the inlet temperature of cooling water, the outlet temperature of cooling water and the reaction time of every 100s during the completion of an autoclave reaction are recorded. After getting dozens of such data

28、, via MA T2Seventy-eightJournal of the Hebei Academy of Sciences2009 volume twenty-sixthThe simulation equations are established and the parameters are obtained. (2) forecasting. After obtaining the simulation equation of the reactor, the real-time data obtained can be used to respond to the reactio

29、n vessel at any timeThe temperature is predicted and compared with the measured data to see if the error is within the control requirements, so that the model equation can be further tested and corrected.Figure 1 reactor temperature simulation tool main interface(3) optimizing design. After the esta

30、blishment of the reaction kettle model, by calculating the heat transfer coefficient and other parameters of the reaction kettle, it can verify whether the parameters are accurate in the design process, and accumulate experience for the design of the same kind of reactor in the future, and optimize

31、the design. (4) optimizing the operation of the equipment. After the establishment of the reactor model, through the input of cooling water, the cost per ton of cooling water per ton reduced once the energy cost of water pump, electricity costs and other economic data, a large number of functions through the MA TL AB optimization toolbox cont