火电机组湿法脱硫系统自动化水平提升的策略与应用
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摘要
[目的]针对早期大型火力发电机组脱硫系统设计时自动化控制水平不足,无法满足现行环保政策下机组安全性要求和控制效率低下问题。[方法]结合珠海电厂脱硫系统现场实际情况和多年运行经验,探讨如何通过合理设置脱硫系统的顺序控制方式和模拟量控制调节方式,以达到提高脱硫系统自动控制水平,提高系统安全和可靠性,降低操作人员工作强度,提升系统和人员效率的目的。[结果]结果表明:通过现场情况深入分析,制定贴合现场实际情况的控制逻辑,可以大幅度提升脱硫系统自动化控制水平,提升机组安全稳定性和运行效率。[结论]对于早期大型火电机组的脱硫自动化提升工作是确实可行,行之有效的。可为情况相类似的提升改造项目提供借鉴经验。
[Introduction]Aiming at the lack of automatic control level in the design of desulfurization system for early large thermal power generating units, unable to meet the safety requirements and low control efficiency of the unit under the current environmental protection policy. [Method]Based on the actual situation of the desulfurization system in Zhuhai power plant and years of operating experience, the paper explored how to set SCS and MCS regulation modes of desulfurization system reasonably, so as to improve the automation level of the desulfurization system, improved the safety and reliability of the system, reduced work intensity of staff, purpose of improving system and personnel efficiency. [Result]The results show that through the field situation in-depth analysis, make the control logic of the actual situation on site, the automatic control level of desulfurization system can be greatly improved, improve the safety stability and operating efficiency of the unit. [Conclusion]For the early large-scale thermal power unit desulfurization automation work is effective, it can provide reference experience for similar projects.
[Introduction]Aiming at the lack of automatic control level in the design of desulfurization system for early large thermal power generating units, unable to meet the safety requirements and low control efficiency of the unit under the current environmental protection policy. [Method]Based on the actual situation of the desulfurization system in Zhuhai power plant and years of operating experience, the paper explored how to set SCS and MCS regulation modes of desulfurization system reasonably, so as to improve the automation level of the desulfurization system, improved the safety and reliability of the system, reduced work intensity of staff, purpose of improving system and personnel efficiency. [Result]The results show that through the field situation in-depth analysis, make the control logic of the actual situation on site, the automatic control level of desulfurization system can be greatly improved, improve the safety stability and operating efficiency of the unit. [Conclusion]For the early large-scale thermal power unit desulfurization automation work is effective, it can provide reference experience for similar projects.
引文
[1] 陈伟. 300 MW燃煤机组烟气湿法脱硫程控系统设计 [D]. 保定:华北电力大学,2012.
[2] 黄红艳,陈华东. 2×300 MW机组湿法烟气脱硫控制系统的应用与分析 [J]. 华东电力,2005, 33(10): 56-58. HANG H Y, CHEN H D. Application of control system of wet flue gas desulfurization for 2×300 MW units [J]. East China Electric Power, 2005, 33(10): 56-58.
[3] 王雷.大型火力发电机组烟气脱硫控制系统设计 [J]. 中国电力,2005,88(1):76-79. WANG L. Design of FGD control system of large size thermal power generating units [J]. Electric Power,2005,88(1):76-79.
[4] 郑晅. 火电厂烟气脱硫控制策略研究 [J]. 电子设计工程,2009,17(10): 94-97. ZHENG X. Research of control strategy for power plant flue gas desulfurization [J]. Electronic Design Engineering,2009,17(10): 94-97.
[5] 谭学谦. 超大型机组湿法脱硫吸收塔喷淋系统设计优化 [J]. 南方能源建设,2015, 2(增刊1):98-100+104. TAN X Q. Design optimization of spray bank in large-scale wet FGD absorber [J]. Southern Energy Construction,2015, 2(Supp.1):98-100+104.
[6] 林梓桦,王观华. 热电厂循环流化床炉外脱硫的深度治理研究及优化[J] 南方能源建设,2016, 3(4):73-77+101.
[2] 黄红艳,陈华东. 2×300 MW机组湿法烟气脱硫控制系统的应用与分析 [J]. 华东电力,2005, 33(10): 56-58. HANG H Y, CHEN H D. Application of control system of wet flue gas desulfurization for 2×300 MW units [J]. East China Electric Power, 2005, 33(10): 56-58.
[3] 王雷.大型火力发电机组烟气脱硫控制系统设计 [J]. 中国电力,2005,88(1):76-79. WANG L. Design of FGD control system of large size thermal power generating units [J]. Electric Power,2005,88(1):76-79.
[4] 郑晅. 火电厂烟气脱硫控制策略研究 [J]. 电子设计工程,2009,17(10): 94-97. ZHENG X. Research of control strategy for power plant flue gas desulfurization [J]. Electronic Design Engineering,2009,17(10): 94-97.
[5] 谭学谦. 超大型机组湿法脱硫吸收塔喷淋系统设计优化 [J]. 南方能源建设,2015, 2(增刊1):98-100+104. TAN X Q. Design optimization of spray bank in large-scale wet FGD absorber [J]. Southern Energy Construction,2015, 2(Supp.1):98-100+104.
[6] 林梓桦,王观华. 热电厂循环流化床炉外脱硫的深度治理研究及优化[J] 南方能源建设,2016, 3(4):73-77+101.