双燃料燃气轮机燃料管路回火原因分析及改进  

Analysis and Improvement of Fuel Pipeline Tempering in Dual-Fuel Gas Turbine

作　　者：申春艳 王尹卓然 赵勇 Shen Chunyan;Wang Yinzhuoran;Zhao Yong(AECC Gas Turbine Co.,Ltd.,Shenyang 110000,Liaoning,China;Northeastern University,Shenyang 110000,Liaoning,China)

机构地区：[1]中国航发燃气轮机有限公司,辽宁沈阳110000 [2]东北大学,辽宁沈阳110000

出　　处：《工程与试验》2023年第4期76-79,共4页Engineering and Test

摘　　要：本文针对双燃料燃气轮机研制过程中出现的回火故障,进行了仿真分析及试验验证,发现清吹气量不足是诱发回火故障的关键因素。基于现有的空气压缩机能力无法满足清吹需求的现状,提出压气机引气及天然气清吹的改进方案,并进行了整机验证。得出的改进措施能够有效避免燃烧室内高温燃气倒灌,达到了对非工作燃料管路清吹保护的目的。本文的研究对于双燃料燃机的研制及清吹系统的设计具有参考意义,同时为同类型机组工程应用积累了经验。The simulation analysis and experimental verification are carried out for the tempering fault that occurred during the development of dual-fuel gas turbine.It is found that insufficient purging gas volume is the key factor to induce the tempering fault.Based on the current situation that the existing air compressor capacity cannot meet the demand of purging,an improved scheme for compressor bleed air and natural gas purging is proposed.Through full-machine verification,it is concluded that the improved measures can effectively avoid the backflow of high-temperature gas in the combustion chamber,and realize the purpose of purging and protecting the non-working fuel pipelines.The research of the paper has reference significance for the development of dual-fuel gas turbine and the design of purging system,and accumulates some experience for the engineering application of similar units.

关 键 词：双燃料 燃气轮机 回火故障 清吹 

分 类 号：TK479[动力工程及工程热物理—动力机械及工程]