新型给水自动加氧设备性能分析及应用
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摘要
以大唐某电厂百万兆瓦机组新型自动加氧设备为例,介绍了自动加氧技术的应用以及新型加氧设备改造的优势和必要性。通过MATLAB软件加氧仿真平台测试验证了新型加氧设备的可行性。新型加氧设备投运后,实现了给水和凝结水加氧的自动控制,将给水溶氧值控制在(20±3)?g/L,凝结水溶氧值控制在(50±5)?g/L范围内。新型加氧设备通过增加自主研发的流量控制器及使用串级PI-P+前馈的控制算法,提高了加氧设备运行的可靠性,也提升了汽水品质的稳定性。
Taking a new type of automatic oxygenation equipment in a million kilowatts unit in Datang Group as an example, this paper introduces the application of automatic oxygenation technology and the advantages and necessity of the new type of oxygenation equipment.The feasibility of the oxygenation equipment was verified after the simulation test on MATLAB software. After the new automatic oxygenation equipment was put into service, the automatic control of oxygenation of feedwater and condensate water was realized. The dissolved oxygen content in feedwater was controlled at(20±3) μg/L, and that in condensate water was controlled at(50±5) μg/L. By increasing the number of flow controller and applying the cascade PI-P+feedforward control algorithm, the operation reliability of the oxygenation equipment was improved, and the steam and water quality became more stable.
Taking a new type of automatic oxygenation equipment in a million kilowatts unit in Datang Group as an example, this paper introduces the application of automatic oxygenation technology and the advantages and necessity of the new type of oxygenation equipment.The feasibility of the oxygenation equipment was verified after the simulation test on MATLAB software. After the new automatic oxygenation equipment was put into service, the automatic control of oxygenation of feedwater and condensate water was realized. The dissolved oxygen content in feedwater was controlled at(20±3) μg/L, and that in condensate water was controlled at(50±5) μg/L. By increasing the number of flow controller and applying the cascade PI-P+feedforward control algorithm, the operation reliability of the oxygenation equipment was improved, and the steam and water quality became more stable.
引文
[1]李志刚,陈戎.火电厂锅炉给水加氧处理技术研究[J].中国电力, 2004, 37(11):47-52.LI Zhigang, CHEN Rong. Study of oxygenated feedwater treatmenttechnologyofutilityboiler[J].ElectricPower,2004, 37(11):47-52.
[2]毕法森,孙本达,李德勇.采用给水加氧处理抑制流动加速腐蚀[J].热力发电, 2005, 34(2):52-53.BIFasen,SUNBenda,LIDeyong.Supressionofflowacceleratedcorrosionbyusingoxygen-addingtreatment ofthefeed-water[J].ThermalPowerGeneration,2005,34(2):52-53.
[3]顾庆华,付昱.国华太仓发电厂超临界机组直流锅炉给水加氧处理实践[J].热力发电, 2009, 38(12):92-94.GU Qinghua, FU Yu. Practice of oxygen-adding treatment forfeed-waterofonce-throughboilersequippedfor supercriticalunitsinguohuataicangpowerplant[J].Thermal Power Generation, 2009, 38(12):92-94.
[4]陈裕忠,黄万启,卢怀钿,等. 1 000 MW超超临界机组长周期给水加氧实践效果分析与评价[J].中国电力,2013, 46(12):43-47.CHENYuzhong,HUANGWanqi,LUHuaidian,etal.Analysisandassessmentoneffectoflong-term oxygenatedtreatmentfor1000MWultrasupercritical units[J]. Electric Power, 2013, 46(12):43-47.
[5]李永生,张好峰,郝晋堂,等.给水加氧处理法在200MW调峰机组上的应用研究[J].华东电力, 2004, 32(9):23-27.LIYongsheng,ZHANGHaofeng,HAOJintang,etal.Applicationofcombinedwatertreatmenton200MW cyclingunit[J].EastChinaElectricPower,2004,32(9):23-27.
[6]谭华安.锅炉给水加氧技术在国产600 MW直流炉机组上的应用[J].给水排水, 2011, 37(5):55-56.TAN Huaan. Application of boiler feed water oxygenation treatmenttechnologyonhome-made600MWdirect current boiler[J]. Water&Wastewater Engineering, 2011,37(5):55-56.
[7]姚真真,曾繁华.给水加氧处理技术在火电厂中的应用探讨[J].低碳世界, 2017(10):53-54.YAO Zhenzhen, ZENG Fanhua. The application of water supply and oxygen treatment technology in thermal power plant[J]. Low Carbon World, 2017(10):53-54.
[8]郑晓军,崔海娣.关于超临界机组锅炉给水水处理方式的探究[J].锅炉制造, 2017(1):27-30.ZHENGXiaojun,CUIHaidi.Thediscussionoffeedwater treatment in the super-critical unit boiler[J]. Boiler Manufacturing, 2017(1):27-30.
[9]居强,孙磊.给水加氧处理技术在超超临界锅炉的应用[J].电力安全技术, 2015, 17(1):12-15.JUQiang,SUNLei.Applicationofwaterandoxygen treatmenttechnologyinultra-supercriticalboilers[J].Electric Safety Technology, 2015, 17(1):12-15.
[10]邱元刚,丁翠兰.超超临界直流锅炉给水加氧处理技术研究及应用[J].山东电力技术, 2016, 43(1):62-66.QIUYuangang,DINGCuilan.Application offeedwater oxygenationtreatmenttechnologyforultrasupercritical once-throughboiler[J].ShandongElectricPower,2016,43(1):62-66.
[11]张益. 1 000 MW超超临界塔式锅炉给水加氧研究与应用[D].北京:华北电力大学, 2016:39.ZHANGYi.Researchandapplicationofwaterand oxygensupplyfor1000MWultra-supercriticaltower boiler[D].Beijing:NorthChinaElectricPower University, 2016:39.
[12]邱元刚,丁翠兰.超超临界机组给水加氧处理技术的优化方案[J].国网技术学院学报, 2015, 18(5):47-48.QIUYuangang,DINGCuilan.Optimizationschemeof feed-wateroxygenationtreatmenttechnologyofultrasupercriticalunit[J].JournalofStateGridTechnology College, 2015, 18(5):47-48.
[13]李克刚.超临界直流炉给水加氧处理技术探讨[J].中国电力, 2009, 42(3):25-28.LIKegang.Discussiononwaterandoxygentreatment technology in supercritical dc furnace[J]. Electric Power,2009, 42(3):25-28.
[14]黄校春,徐洪,赵益民.超超临界机组实施给水加氧处理的可行性[J].中国电力, 2011, 44(12):51-54.HUANGXiaochun,XUHong,ZHAOYimin.The feasibilityoffeedwateroxygenationtreatmentinultrasupercritical unit[J]. Electric Power, 2011, 44(12):51-54.
[15]高海瑞,治卿,刘伟.超(超)临界直流锅炉给水加氧处理技术应用[J].工业用水与废水, 2013, 44(4):40-42.GAOHairui,ZHIQing,LIUWei.Applicationof oxygenatedfeed-watertreatmenttechnologyforultrasupercriticalonce-throughboiler[J].IndustrialWater&Wastewater, 2013, 44(4):40-42.
[2]毕法森,孙本达,李德勇.采用给水加氧处理抑制流动加速腐蚀[J].热力发电, 2005, 34(2):52-53.BIFasen,SUNBenda,LIDeyong.Supressionofflowacceleratedcorrosionbyusingoxygen-addingtreatment ofthefeed-water[J].ThermalPowerGeneration,2005,34(2):52-53.
[3]顾庆华,付昱.国华太仓发电厂超临界机组直流锅炉给水加氧处理实践[J].热力发电, 2009, 38(12):92-94.GU Qinghua, FU Yu. Practice of oxygen-adding treatment forfeed-waterofonce-throughboilersequippedfor supercriticalunitsinguohuataicangpowerplant[J].Thermal Power Generation, 2009, 38(12):92-94.
[4]陈裕忠,黄万启,卢怀钿,等. 1 000 MW超超临界机组长周期给水加氧实践效果分析与评价[J].中国电力,2013, 46(12):43-47.CHENYuzhong,HUANGWanqi,LUHuaidian,etal.Analysisandassessmentoneffectoflong-term oxygenatedtreatmentfor1000MWultrasupercritical units[J]. Electric Power, 2013, 46(12):43-47.
[5]李永生,张好峰,郝晋堂,等.给水加氧处理法在200MW调峰机组上的应用研究[J].华东电力, 2004, 32(9):23-27.LIYongsheng,ZHANGHaofeng,HAOJintang,etal.Applicationofcombinedwatertreatmenton200MW cyclingunit[J].EastChinaElectricPower,2004,32(9):23-27.
[6]谭华安.锅炉给水加氧技术在国产600 MW直流炉机组上的应用[J].给水排水, 2011, 37(5):55-56.TAN Huaan. Application of boiler feed water oxygenation treatmenttechnologyonhome-made600MWdirect current boiler[J]. Water&Wastewater Engineering, 2011,37(5):55-56.
[7]姚真真,曾繁华.给水加氧处理技术在火电厂中的应用探讨[J].低碳世界, 2017(10):53-54.YAO Zhenzhen, ZENG Fanhua. The application of water supply and oxygen treatment technology in thermal power plant[J]. Low Carbon World, 2017(10):53-54.
[8]郑晓军,崔海娣.关于超临界机组锅炉给水水处理方式的探究[J].锅炉制造, 2017(1):27-30.ZHENGXiaojun,CUIHaidi.Thediscussionoffeedwater treatment in the super-critical unit boiler[J]. Boiler Manufacturing, 2017(1):27-30.
[9]居强,孙磊.给水加氧处理技术在超超临界锅炉的应用[J].电力安全技术, 2015, 17(1):12-15.JUQiang,SUNLei.Applicationofwaterandoxygen treatmenttechnologyinultra-supercriticalboilers[J].Electric Safety Technology, 2015, 17(1):12-15.
[10]邱元刚,丁翠兰.超超临界直流锅炉给水加氧处理技术研究及应用[J].山东电力技术, 2016, 43(1):62-66.QIUYuangang,DINGCuilan.Application offeedwater oxygenationtreatmenttechnologyforultrasupercritical once-throughboiler[J].ShandongElectricPower,2016,43(1):62-66.
[11]张益. 1 000 MW超超临界塔式锅炉给水加氧研究与应用[D].北京:华北电力大学, 2016:39.ZHANGYi.Researchandapplicationofwaterand oxygensupplyfor1000MWultra-supercriticaltower boiler[D].Beijing:NorthChinaElectricPower University, 2016:39.
[12]邱元刚,丁翠兰.超超临界机组给水加氧处理技术的优化方案[J].国网技术学院学报, 2015, 18(5):47-48.QIUYuangang,DINGCuilan.Optimizationschemeof feed-wateroxygenationtreatmenttechnologyofultrasupercriticalunit[J].JournalofStateGridTechnology College, 2015, 18(5):47-48.
[13]李克刚.超临界直流炉给水加氧处理技术探讨[J].中国电力, 2009, 42(3):25-28.LIKegang.Discussiononwaterandoxygentreatment technology in supercritical dc furnace[J]. Electric Power,2009, 42(3):25-28.
[14]黄校春,徐洪,赵益民.超超临界机组实施给水加氧处理的可行性[J].中国电力, 2011, 44(12):51-54.HUANGXiaochun,XUHong,ZHAOYimin.The feasibilityoffeedwateroxygenationtreatmentinultrasupercritical unit[J]. Electric Power, 2011, 44(12):51-54.
[15]高海瑞,治卿,刘伟.超(超)临界直流锅炉给水加氧处理技术应用[J].工业用水与废水, 2013, 44(4):40-42.GAOHairui,ZHIQing,LIUWei.Applicationof oxygenatedfeed-watertreatmenttechnologyforultrasupercriticalonce-throughboiler[J].IndustrialWater&Wastewater, 2013, 44(4):40-42.