耦合余热回收下电站锅炉尾部烟气热能高效梯级利用系统设计  

Design of Efficient Cascade Utilization System for Tail Flue Gas Heat Energy of the Utility Boiler under Coupled Waste Heat Recovery

作　　者：赵伟 贾熙 汤宣 ZHAO Wei;JIA Xi;TANG Xuan(Chongqing Special Equipment Inspection and Research Institute)

机构地区：[1]重庆市特种设备检测研究院

出　　处：《化工自动化及仪表》2024年第1期107-112,共6页Control and Instruments in Chemical Industry

摘　　要：针对电站锅炉尾部烟气热能利用效率较低,梯级利用数值模拟过程与全尺度数据分析过程偏差较大的问题,设计了一种耦合余热回收下的电站锅炉尾部烟气热能高效梯级利用系统。实验结果表明,系统的最佳烟气热能高效梯级节点利用情况和热能梯级置换情况整体都保持在60%以上,采用热能阶梯式温差电站后,系统整体效率提高了约22%,证明了所设计系统的使用优越性。Aiming at low utilization efficiency of the tail flue gas heat of the utility boiler,and the large deviation between the numerical simulation process and the full-scale data analysis process,an efficient cascade utilization system for it coupled with waste heat recovery was designed.The experimental results show that,the best utilization of the flue gas heat and the thermal energy cascade replacement can be maintained more than 60%as a whole;and after adopting the cascade thermal power station,the overall efficiency of the system is improved by about 22%,which proves the superiority of the system in use.

关 键 词：耦合余热回收 电站锅炉 烟气热能 梯级利用 

分 类 号：TH862[机械工程—仪器科学与技术]