600MW超临界机组的复合相变换热器仿真研究  

Simulation Research of Composite Phase Change Heater based on 600 MW Supercritical Unit

作　　者：杨建蒙[1] 于涛 王弼正 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003

出　　处：《节能技术》2018年第1期63-67,共5页Energy Conservation Technology

摘　　要：为了分析复合相变换热器的性能,以山西兴能600 MW机组为研究对象,建立了复合相变换热器系统的数学模型,同时构建其仿真模型,并将其集成到该600 MW供热机组仿真系统中。利用该仿真系统,通过是否投入相变换热器系统分析了该系统对火电机组运行特性的影响;通过阀门扰动实验和降负荷过程研究了相变换热器系统的动态特性。结果表明,复合相变换热器技术是在保证受热面不结露的前提下降低排烟温度,"最大幅度"进行有效地降温节能、提高热效率和防腐能力。To analyze the performance of composite phase change heat transfer, referring to the 600 MWunit in Shanxi Provience, the mathematical model and the simulation model of tchange heat transfer system were established and integrated into the simulation system of a 600 MW heat-ing unit that the models based on. Using the simulation system, the impact of the system on the operatingcharacteristics of tiiermal power units was analyzed by applying phase change heat transfer system. Andthis paper also determines to discover the dynamic characteristics of the phase change hby testing the valve perturbation and the process of lowering the load. The results show that, the compos-ite phase change heat transfer technology is able to reduce exhaust gas temperatuprove the thermal efficiency and corrosion resistance to the utmost extent, while ensuring the premise ofno condensation in heating surface.

关 键 词：仿真 运行特性 低温腐蚀 复合相变 节能 

分 类 号：TK223.3[动力工程及工程热物理—动力机械及工程]