套管式直流蒸发器的建模及仿真

Modeling and simulation of once-through steam generator of casing pipes

针对新型直流蒸发器采用的双面传热的双层竖直套管结构,建立动态数学模型。该模型考虑了不同运行工况的流体流动及传热特性,可满足整个运行范围内的稳态和动态分析,为控制系统的设计、操作、异常工况和故障的分析与处理,运行规程的编制等均能提供必要的依据。

Adynamic model about the double casing pipes structure of double-face heat transfer is accepted in new type once-through steam generator （OTSG） is established. The model,which can be applied to any steady and dynamic conditions of OSTG in different flowing and heat transferring characteristic, is developed. It provides the bases for the design and operation of control system, analysis and treatment of abnormal conditions and faults, and development of operation rules.