1 000 MW超超临界机组给水泵汽轮机转速周期性波动分析与处理  

Analysis and Treatment of Periodic Fluctuation of Rotating Speed on Feedwater Pump Turbine for 1000 MW Ultra-supercritical Unit

作　　者：曾海波 龚自力 陈节涛 ZENG Haibo;GONG Zili;CHEN Jietao(China Energy Hanchuan Power Generation Co.,Ltd.,Hanchuan Hubei,431614)

机构地区：[1]国家能源集团汉川发电有限公司,湖北汉川431614

出　　处：《东方汽轮机》2021年第1期60-64,共5页Dongfang Turbine

摘　　要：直流锅炉中给水流量的波动将对机组负荷、主蒸汽压力和主蒸汽温度等机组运行重要过程参数均产生较大影响。文章介绍了某电厂三期2×1 000 MW超超临界机组锅炉给水泵汽轮机的控制策略及功能,分析了一起给水泵汽轮机转速周期性波动的异常工况,对可能因素进行逐一排查处理,解决了转速波动问题,提高了运行中给水泵汽轮机的安全稳定性,为同类型配置的锅炉给水泵汽轮机转速调节的故障分析提供参考。The fluctuation of feed water flow in once through boiler will have great influence on the important process parameters of unit operation, such as unit load, main steam pressure and main steam temperature. This paper introduces the control strategy and function of the boiler feed pump turbine of 2 × 1 000 MW ultra-supercritical Unit in the third phase of a power plant, analyzes an abnormal condition of the periodic fluctuation of the speed of the feed pump turbine, checks and deals with the possible factors one by one, solves the problem of the speed fluctuation, and improves the safety and stability of the feed pump turbine in operation. This paper can provide a reference for the fault analysis of the speed regulation of the same type of boiler feed pump turbine.

关 键 词：超超临界机组 给水泵汽轮机 控制 伺服阀 

分 类 号：TK266[动力工程及工程热物理—动力机械及工程]