M701F燃气轮机轮盘超温诊断及处理  

Diagnosis of overtemperature of M701F gas turbine disk and treatment

作　　者：谢冰 薛少华 

机构地区：[1]广东惠州天然气发电有限公司,广东惠州516082

出　　处：《华电技术》2015年第7期35-37,77,共3页HUADIAN TECHNOLOGY

摘　　要：M701F燃气轮机引进我国后相继出现了2级轮盘超温报警的现象,通过分析,确认2级轮盘超温的原因为燃气轮机老化导致冷却空气压力不平衡。采取了对2级静叶冷却空气节流孔板扩孔的处理方法,2级轮盘温度明显下降,机组效率和燃气轮机出力也有所降低。After the gas turbine M701 F was imported into our country,the over temperature alarms of the secondary stage rotor disk were occurred successively. Based on analysis,it was determined that the reason of the over temperature of secondary stage rotor disk is aging of the gas turbine,which leads the cooling air pressure to be unbalance. The orifices on the secondary vane fixed blade cooling air throttle oriice plate had been enlarged. The temperature of secondary stage rotor disk was reduced sharply,but the unit efficiency and the output power of the gas turbine were decreased somewhat.

关 键 词：M701F燃气轮机 老化 轮盘 温度 

分 类 号：TK478[动力工程及工程热物理—动力机械及工程]