CHEN Zheng-jian Shenzhen Eastern Power Plant. ANALYSIS OF HIDDEN TROUBLES IN STEAM TURBINE'S BY-PASS CONTROL FOR M701F COMBINED CYCLE UNIT AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2008, (10): 71-73.
CHEN Zheng-jian Shenzhen Eastern Power Plant. ANALYSIS OF HIDDEN TROUBLES IN STEAM TURBINE'S BY-PASS CONTROL FOR M701F COMBINED CYCLE UNIT AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2008, (10): 71-73. DOI: 10.19666/j.rlfd.2008.10.020.
M701F联合循环机组汽轮机旁路控制隐患分析及对策
摘要
在M701F联合循环机组冷态起动过程中
可能出现机组冷态因蒸汽量不足而导致机组进入非正常旁路控制模式;在机组低温参数温态起动过程中
旁路控制使得主蒸汽压力和温度不匹配
导致汽轮机无法进汽。采用手动干预方法可避免这些现象的出现
使机组安全、稳定起动。
Abstract
During the time in process of cold start-up for M701F unit
insufficient steam quantity in cold unit may occur
leading the unit into improper mode of by-pass control;during the process of warm start-up under low temperature parameters of unit
the by-pass control makes the main steam pressure to be mismatched with the main steam temperature
resulting in the steam being unable to enter into the steam turbine.Adopting manual intervention method
the occurence of above-mentioned phenomena can be avoided
making the unit to be started up safely and stably.