重庆大学学报2025，Vol.48Issue(7)：94-103,10.DOI:10.11835/j.issn.1000-582X.2025.07.009
超超临界循环流化床锅炉主燃料跳闸及锅炉跳闸动态特性仿真
Dynamic simulation of a ultra-supercritical circulating fluidized bed boiler during main fuel trip and boiler trip
摘要
Abstract
To investigate the dynamic characteristics of an ultra-supercritical circulating fluidized bed(CFB)boiler during main fuel trip(MFT)and boiler trip(BT)events,a mathematical model of a 660MW ultra-supercritical CFB boiler was established using the Apros simulation platform.The model dynamically simulates MFT and BT scenarios under coal conbustion conditions at 100%BMCR(boiler maximum continuous rating),75%THA(turbine heat acceptance)and 50%THA operating loads.Numerical results show that under 50%THA operating conditions,the steam-water separator rapidly transitions from dry to wet operation following MFT and BT activation and gradually returns to dry operation after system reset.These frequent dry-wet transitions increase thermal stress on the steam-water separator,potentially reducing its service life and compromising equipment safety.Therefore,triggering MFT and BT under low-load conditions should be avoided to ensure system reliability.关键词
超超临界/循环流化床锅炉/主燃料跳闸/锅炉跳闸/动态仿真Key words
ultra-supercritical/circulating fluidized bed boiler/main fuel trip/boiler trip/dynamic simulation分类
能源科技引用本文复制引用
李果,巩李明,陶翔宇,张宗龙,杨晨,邓启刚,聂立,何维,李维成,鲁佳易..超超临界循环流化床锅炉主燃料跳闸及锅炉跳闸动态特性仿真[J].重庆大学学报,2025,48(7):94-103,10.基金项目
国家自然科学基金资助项目(51876011).Supported by the National Nature Science Foundation of China(51876011). （51876011）
