汽动引风机自动启停控制及导叶优化分析
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摘要
华能汕头海门发电有限责任公司3号和4号机组国内首次采用引风机小汽轮机驱动技术,取得良好的节能效果和经济效益。本文介绍了该汽动引风机全过程自动控制技术方案和实施成果,通过优化求解导叶开度预置值及特殊工况下导叶预置超驰值试验,实现引风机自动安全启停以及在各负荷工况安全经济运行的目的,为火电机组在引风机小汽轮机驱动全程自动控制技术研发提供借鉴。
The No.3 and No.4 unit in Huaneng Shantou Haimen Power Production Co., Ltd. adopts the small turbine driving technology for induced draft fan, which is the first time in domestic and has gained good energy saving effect and economic benefits. This article introduces the technical scheme of whole process automatic control for steam driven induced draft fan and the implementation results. By optimizing the preset value of guide vane opening and the test of guide vane preset excess value under special working condition, the automatic safe start and stop of the induced fan and safe and economical operation under various load conditions are realized.The study can provide references for research and development of the whole process automatic control technology for induced draft fan driven by small turbine.
The No.3 and No.4 unit in Huaneng Shantou Haimen Power Production Co., Ltd. adopts the small turbine driving technology for induced draft fan, which is the first time in domestic and has gained good energy saving effect and economic benefits. This article introduces the technical scheme of whole process automatic control for steam driven induced draft fan and the implementation results. By optimizing the preset value of guide vane opening and the test of guide vane preset excess value under special working condition, the automatic safe start and stop of the induced fan and safe and economical operation under various load conditions are realized.The study can provide references for research and development of the whole process automatic control technology for induced draft fan driven by small turbine.
引文
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[2]赵志丹,陈志刚,郝德锋,等.火电机组RB控制策略及其试验中应注意的问题[J].热力发电,2010,39(6):48-50.ZHAO Zhidan,CHEN Zhigang,HAO Defeng,et al.The RB control strategy of thermal power units and problems needing to pay attention in the test[J].Thermal Power Generation,2010,39(6):48-50.
[3]崔利,段远光,曹志刚,等.背压式汽动引风机控制的优化设计[J].热力发电,2014,43(6):119.CUI Li,DUAN Yuanguang,CAO Zhigang,et al.Design optimization for control strategy of a backpressure Generation,2014,43(6):119.
[4]高明帅,张红侠,马涛,等.超临界350 MW机组汽动引风机控制优化及其快速减负荷功能分析[J].热力发电,2015,44(4):44-50.GAO Mingshuai,ZHANG Hongxia,MA Tao,et al.Control optimization and runback analysis of steam-driven draft fans in a supercritical 350 MWunit[J].Thermal Power Generation,2015,44(4):44-50.
[5]赵志丹,陈志刚,王家兴,等.汽动引风机控制策略的优化[J].热力发电,2012,40(9):61-64.ZHAO Zhidan,CHEN Zhigang,WANG Jiaxing,et al.Optimization of control strategy for steam turbine driven induced draft fan[J].Thermal Power Generation,2012,40(9):61-64.
[6]李毅杰,孙叶柱,张俊伟,等.汽动引风机在华能海门电厂1 000 MW机组上的开发与应用[M].北京:中国电力出版社,2012:9.LI Yijie,SUN Yezhu,ZHANG Junwei,et al.Application of turbine-driven induced draft fan in 1 000 MW ultrasupercritical unit of Huaneng Haimen Power Plant[M].Beijing:China Electric Power Press,2012:9.
[7]刘国跃,朱宝田,雷兆团.超临界及超超临界机组的运行特性研究[J].电力设备,2006,7(4):7-10.LIU Guoyue,ZHU Baotian,LEI Zhaotuan.Study of operation property of supercritical and ultra-supercritical pressure generating units[J].Electrical Equipment,2006,7(4):7-10.
[8]赵志丹,高奎,闫旭彦,等.华能海门电厂一期工程3号机组调试报告[R].西安:西安热工研究院有限公司,2010:23-25.ZHAO Zhidan,GAO Kui,YAN Xuyan,et al.Commissioning report on unit 3 of Huaneng Haimen Power Plant Phase I Project[R].Xi’an:Xi’an Thermal Power Research Institute Co.,Ltd.,2010:23-25.
[9]马晓珑,陈书平,李学忠,等.汽动引风机在超超临界1 000 MW机组中的应用[J].热力发电,2011,40(6):75.MA Xiaolong,CHEN Shuping,LI Xuezhong,et al.Application of turbine-driven induced draft fan for ultra-super critical 1 000 MW unit[J].Thermal Power Generation,2011,40(6):75.
[10]徐齐胜,殷实,吴婕,等.基于等效焓降法的汽动引风机经济效益分析[J].热力发电,2014,43(2):1.XU Qisheng,YIN Shi,WU Jie,et al.Equivalent enthalpy drop method based economic benefit analysis on a steam driven induced draft fan[J].Thermal Power Generation,2014,43(2):1.
[11]马晓茜,彭晓为,徐齐胜,等.基于快速决策算法的汽动引风机经济性分析[J].热力发电,2013,42(11):12.MA Xiaoqian,PENG Xiaowei,XU Qisheng,et al.Fast decision making algorithm based economic analysis for a steam driven induced draft fan[J].Thermal Power Generation,2013,42(11):12.