1000 MW机组泛热值煤燃烧适应控制策略研究与应用
|
摘要
针对1 000 MW超超临界机组泛热值煤掺烧工况,提出了泛热值修正技术,优化BTU回路,实现了控制系统对机组热值变化的快速响应,同时针对煤种热值波动时机组带载能力的变化,提出了对RUNBACK保护回路的优化。实践证明,该策略的应用改善了冷热值工况下机组掺烧的适应能力和灵活性,机组运行的安全性和可靠性得到了提高。
Aiming at blended combustion condition of general calorific heat value coal in 1 000 MW ultra-supercritical units, the paper propose general calorific heat value modification technology for BTU circuit optimization to achieve a fast response to calorific value changes in the units; in the meantime, based on the unit load capacity changes in the case of coal calorific value fluctuations, RUNBACK circuit optimization is proposed. The practice shows that the strategy improves adaptability and flexibility of blended combustion under heat and cold value condition, which thereby improves operation safety and reliability of the units.
Aiming at blended combustion condition of general calorific heat value coal in 1 000 MW ultra-supercritical units, the paper propose general calorific heat value modification technology for BTU circuit optimization to achieve a fast response to calorific value changes in the units; in the meantime, based on the unit load capacity changes in the case of coal calorific value fluctuations, RUNBACK circuit optimization is proposed. The practice shows that the strategy improves adaptability and flexibility of blended combustion under heat and cold value condition, which thereby improves operation safety and reliability of the units.
引文
[1]李彦猛,吴剑波.1 030 MW超超临界锅炉煤种掺烧适应性试验研究[J].浙江电力,2016,35(4):46-49.
[2]罗志浩,陈小强,陈波.超(超超)临界机组主重要参数控制策略优化[J].浙江电力,2011,30(6):32-35.
[3]蒋欣军,王煜伟,周晓韡.新型串级热值校正技术在直流锅炉配煤掺烧中的应用[J].锅炉技术,2013,44(6):65-69.
[4]刘礼帧,沈建峰,高磊,等.基于多煤种掺烧的分层热值修正技术研究及应用[J].自动化博览,2015(8):88-92.
[5]苏烨,张鹏,卓鲁锋,等.AGC模式下超临界机组协调控制策略的完善及应用[J].浙江电力,2010,29(2):26-29.
[6]屠士凤,丁明利.660 MW机组协调控制系统的故障分析与改进措施[J].浙江电力,2012,31(5):38-40.
[7]陈波,张永军,罗志浩.火电机组协调控制中基于能量分析的锅炉前馈研究[J].浙江电力,2011,30(11):29-33.
[8]张杰,张于平,郑渭建.1 000 MW超超临界燃煤机组协调控制策略优化[J].浙江电力,2011,30(9):31-34.
[9]赵爽.大型火电机组协调控制系统闭环逻辑实用解析[M].北京:中国电力出版社,2013.
[10]刘红波.火电机组先进智能控制及其应用[M].北京:科学出版社,2005.
[11]李德波,沈跃良,余岳溪,等.旋流燃烧煤粉锅炉主要烟气组分及分布规律试验[J].广东电力,2016,29(3):1-7.
[2]罗志浩,陈小强,陈波.超(超超)临界机组主重要参数控制策略优化[J].浙江电力,2011,30(6):32-35.
[3]蒋欣军,王煜伟,周晓韡.新型串级热值校正技术在直流锅炉配煤掺烧中的应用[J].锅炉技术,2013,44(6):65-69.
[4]刘礼帧,沈建峰,高磊,等.基于多煤种掺烧的分层热值修正技术研究及应用[J].自动化博览,2015(8):88-92.
[5]苏烨,张鹏,卓鲁锋,等.AGC模式下超临界机组协调控制策略的完善及应用[J].浙江电力,2010,29(2):26-29.
[6]屠士凤,丁明利.660 MW机组协调控制系统的故障分析与改进措施[J].浙江电力,2012,31(5):38-40.
[7]陈波,张永军,罗志浩.火电机组协调控制中基于能量分析的锅炉前馈研究[J].浙江电力,2011,30(11):29-33.
[8]张杰,张于平,郑渭建.1 000 MW超超临界燃煤机组协调控制策略优化[J].浙江电力,2011,30(9):31-34.
[9]赵爽.大型火电机组协调控制系统闭环逻辑实用解析[M].北京:中国电力出版社,2013.
[10]刘红波.火电机组先进智能控制及其应用[M].北京:科学出版社,2005.
[11]李德波,沈跃良,余岳溪,等.旋流燃烧煤粉锅炉主要烟气组分及分布规律试验[J].广东电力,2016,29(3):1-7.