可独立运行的复合型高效余热锅炉数值模拟研究

打开文本图片集

中图分类号：TK123 文献标志码：A 文章编号：1000-582X（2025）07-104-11

doi：10.11835/j.issn.1000-582X.2025.07.010

Numerical simulation study of a high-efficiency compound waste heat boiler capable of independent operation

FAN Cheng1，2a， QIANG Xiangmin1，2a， YUAN Yi1，2a ，LI Bing1，2a，LI Qibin2

（1.Powerchina Dujiang Electric Power Equipment Co.，LTD.， Dujiangyan， Sichuan 611833，P.R. China; 2a.College of Power Engineering; 2b.Key Laboratory ofLow-grade Energy Utilization Technologies and Systems， Ministry of Education， Chongqing University， Chongqing 40oo44， P. R. China）

Abstract： This study designs and simulates a high-eficiency compound waste heat boiler capable of operating independently.The boiler is designed to function withina gas-steam combined cycle and can also operate independentlywithout a gas turbine.A three-dimensional numerical model of the boiler is established using computational fluid dynamics（CFD） software to simulate its performance under three steady-state operating modes.Inadition，the overall characteristics of the dynamic switching process between diferent modes are analyzed.The simulation results show that all three modes can meet heat load demands by adjusting the supplementary gas combustion during steady-state operation.During dynamic switching，the control method

proposed in this study ensures stable operation of the waste heat boiler throughout the entire transition process.

Seamless switching between the three operating modes is successfully achieved.

Keywords： waste heat boiler; numerical simulation; dynamic switching; gas turbine

“碳达峰碳中和"目标的提出，将进一步提高能源利用率、推进节能减排工作，加快建设资源节约型、环境友好型社会以实现我国经济的可持续发展。（剩余12188字）