LIAO Shurong, LIU Hai, SONG Qing, et al. Application of control strategy for backup oil gun automatic startup in down-fired boiler[J]. Thermal power generation, 2013, 42(4): 80-83.
LIAO Shurong, LIU Hai, SONG Qing, et al. Application of control strategy for backup oil gun automatic startup in down-fired boiler[J]. Thermal power generation, 2013, 42(4): 80-83.DOI:
W型火焰锅炉油枪炉内备用自动投运控制策略的应用
摘要
针对华能珞璜电厂2×600MW机组和4×360MW机组在锅炉燃烧不稳定时需要快速投油稳燃的问题
提出了油枪炉内备用自动投运控制策略
并相应地优化了锅炉保护控制功能。投入油枪炉内备用自动投运控制功能后
5号机组在负荷为598MW
炉膛压力为-26Pa工况下
因炉膛突然垮焦炉膛压力急剧波动至-295Pa
控制系统自动炉膛正压波动至503Pa
自动投入炉内备用油枪32s后
经过一次震荡炉膛压力快速稳定至-39Pa左右
有效避免了因炉膛压力突变引起的机组非计划停运事故的发生。
Abstract
To realize stable combustion in furnace
rapid oil injection was needed when the boiler combustion was instable in 2×600 MW unit and 4×360 MW unit in Huaneng Luohuang Power Plant.Thus
backup oil gun automatic control strategy was proposed
and the boiler protection control function was optimized.After this control strategy was put into service
the pressure in furnace sharply fluctuated to-295 Pa and 503 Pa due to the sudden coke collapse
under condition with load of 598MW and pressure of-26 Pa in No.5 unit.After a concussion
the pressure in furnace rapidly stabilized to about-39 MPa 32 seconds after the backup oil gun started automatically
effectively avoiding the unplanned shutdown of unit caused by the instable boiler combustion.