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    化工模型的四种类型你知道是什么吗?
    2019-1-25 10:21:58 来源:http://www.jnsymx.com
    一、稳态流程模型。其根本功能是进行物料和能量衡算,有的还包含设备尺寸核算、成本预算和经济评价等高级功能。
    1. Steady-state process model. Its basic function is to balance material and energy, and some include advanced functions such as equipment size accounting, cost budget and economic evaluation.
    二、动态流程模型。用于体系的动态特性核算、控制性能的研究和体系开泊车操作的模仿,也用于操作人员的训练。
    2. Dynamic process model. It can be used to calculate the dynamic characteristics of the system, to study the control performance of the system and to imitate the parking operation of the system. It can also be used to train the operators.
    三、流程的优化模型。用于体系或全流程的决议计划变量(操作参数)的优化查找。
    3. Process optimization model. It is used to optimize the search of decision planning variables (operation parameters) in the system or the whole process.
    四、分批处理操作的模型。用于模仿间歇进程的时刻安排顺序。
    4. Model of batch operation. Timing sequence used to simulate intermittent processes.
    化工模型一般至少有以下几个组成部分:
    Chemical models generally have at least the following components:
    单元操作和反响进程模块:如精馏、换热、闪急蒸馏、蒸馏、流体输送等以及各种反响模块。调用这些根本单元操作模块,在核算机中可以搭成各种各样模仿流程,来描述实践工艺流程。
    Unit operation and reaction process modules: such as distillation, heat transfer, flash distillation, distillation, fluid transport and various response modules. By calling these basic unit operation modules, various simulation processes can be built in the accounting machine to describe the practical process.
    物性预算体系:包含基础物性数据库和预算相关模型。前者存贮各种化合物的根本物性数据,如分子量、密度、临界压力、临界温度、标准沸点、偏心因子等,以便核算时调用;后者是为核算各种物质,在给定条件下的各种物性所需的预算方程式。

    Physical property budget system: including basic physical property database and budget related model. The former stores the basic physical properties data of various compounds, such as molecular weight, density, critical pressure, critical temperature, standard boiling point, eccentricity factor, etc. for use in accounting, while the latter is the budget equation needed to calculate the physical properties of various substances under given conditions.

    例如状态方程、核算液相活度系数的相关式、核算热焓和自由能的相关式等,物性预算体系用认为单元操作模块核算供给所需要的各种物性数据。
    For example, the equation of state, the correlation formula for calculating liquid activity coefficient, the correlation formula for calculating enthalpy and free energy, etc. The physical property budget system uses the unit operation module to calculate various physical property data needed for supply.
    数学方法程序:主要有两大类数学程序:一类是体系分化方法,能够使大体系主动分隔和断裂,并排出单元模块的核算顺序;另一类是加快迭代核算收敛和其他通用的数学方法。
    Mathematical methods and procedures: There are two main types of mathematical procedures: one is the system differentiation method, which can actively separate and break the system, and exclude the accounting sequence of unit modules; the other is to speed up the convergence of iterative accounting and other general mathematical methods.
    履行体系:具有输入言语主动翻译、模仿程序安装和结果打印等功能。
    Implementation system: It has the functions of active translation of input speech, installation of imitation program and printing of results.
    以上信息是我们济南模型公司整理发布希望对大家有所帮助我们的网站是:http://www.jnsymx.com
    The above information is our Jinan Model Company's collation and release of hope to help you all on our website is: http://www.jnsymx.com!
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