超超临界机组高温再热管道布置优化  

Optimization of High-temperature Reheat Steam Piping Layout for an Ultra-supercritical Unit

作　　者：王子杰 张健 李凯 WANG Zijie;ZHANG Jian;LI Kai(POWERCHINA Hebei Electric Power Engineering Co.,Ltd.,Shijiazhuang 050031,China;Hebei Electric Power Design&Survey Technology Innovation Center,Shijiazhuang 050031,China)

机构地区：[1]中国电建集团河北省电力勘测设计研究院有限公司,石家庄050031 [2]河北省电力勘测设计技术创新中心,石家庄050031

出　　处：《发电设备》2025年第2期132-135,共4页Power Equipment

摘　　要：利用AFT软件进行系统建模,研究了超超临界机组再热蒸汽管道采用传统双管制方案时锅炉左右两侧集箱出口管道的温度变化,以及对汽轮机两侧进口管道蒸汽的温度、压力参数的影响,并且提供了优化双管制方案。研究结果表明:传统双管制方案无法实现蒸汽温度偏差控制,采用混温设计的优化双管制方案可较好地控制汽轮机两侧的蒸汽温度偏差,有助于汽轮机的安全可靠运行。Based on the system modelling with AFT software,for the reheat steam piping with the traditional double-piping layout in an ultra-supercritical unit,researches were conducted on the temperature change of the two sides of left and right outlet pipes in the boiler header,and the influence on the steam temperature and pressure parameters of the two sides of left and right inlet pipes in steam turbine,while corresponding optimization schemes were proposed.Research results show that,the steam temperature deviation could not be controlled with the application of the traditional double-piping layout,while the steam temperature deviation of steam turbine two sides could be well controlled by the optimized double-piping layout with mixing temperature design,which is conductive to the safe and reliable operation of steam turbine.

关 键 词：超超临界机组 单管制 双管制 优化设计 

分 类 号：TM621.72[电气工程—电力系统及自动化]