【摘要】 介绍了ＳＴＡＲ－９０仿真支撑系统下，采用工程模块化方法建立的自然循环锅炉蒸发系统的实时仿真数学模型及该系统主要过程算法的设计。模型由下降管、上升管、汽包等算法模块搭接而成。经过仿真试验表明，该模型在各工况下计算均能稳定、收敛，且具有较高的精度。该模型形式简单，易于掌握，用户不用编程即可建立各种规格的自然循环锅炉仿真模型。更多还原

【Abstract】 A kind of engineering modular real time simulation mathematical model of natural circulation evaporation system is discussed in the paper. The model is built based on downcomer,upriser and drum algorithmblocks, it can correctly simulate the dynamic and static characteristics of evaporation system. The model issimple with high fidelity. Users can create various type of natural circulation boiler mathematical model withoutprogramming.更多还原