【摘要】 在嵌套结构参数模型的基础上，对锅炉单相区的数学模型加以改进，提出了链式结构的集总参数数学模型，并对其进行仿真。理论分析及仿真结果表明，该模型在热流量、入口流量和入口焓的扰动条件下，出口焓的变化分别以二阶、二阶、三阶精度逼近分布参数模型。链式结构的集总参数模型在精度上能够很好地满足工程要求，尤其在出口焓相对于入口焓扰动方面比以往的数学模型显示更好的动态响应。链式结构的集总参数模型在提高模型精度方面也提供了一种思路。更多还原

【Abstract】 On the basis of the insertion structure mathematical model, the modeling method for single phase section of boilers is improved and a new modeling method——chain structure modeling method based on lumped parameter is presented. The theoretical analysis and the simulation of the chain structure model indicate that the fluctuations of mass leaving enthalpy close in on that of distributed parameter model with two order, two order, and three order precision at the disturbances of heat flow rate, mass entering flow rate, and mass entering enthalpy. The precision of the chain structure model can meet the requirement of engineering well. The chain structure model can offer a new idea for improving the precision of lumped parameter model.更多还原