天然气管网压力联锁自动控制技术应用研究
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摘要
为解决天然气管网压力能发电装置尤其是螺杆膨胀发电装置对天然气城市门站输气量变工况特性的适应能力及调压支路无缝切换等问题,设计了一种基于天然气压力能综合利用的压力联锁自动控制技术。该技术利用调压器及螺杆膨胀发电机组的压力反馈特性,通过压力联锁控制实现螺杆膨胀发电装置的变工况运行和调压支路的快速自动切换。通过工程实践,成功验证了压力联锁自动控制技术的可行性,为天然气压力能综合利用项目尤其是螺杆膨胀发电项目投资提供了安全、经济运行保障和性能保证。
An automatic interlocking control technology based on natural gas pressure energy comprehensive utilization was designed to solve the adaptability on variable operating condition characteristics of natural gas pressure regulating station and the seamless switching of pressure regulating branch for energy power generation equipment, especially the screw expansion power generation equipment. The technique, which utilized the feedback characteristics of the voltage regulator and the equipment, can make quick switching on variable working conditions and fast automatically switching of pressure regulating branch for screw expansion power plant through pressure interlocking control. Through engineering practice, the feasibility of interlocking automatically control technology is successfully verified, which can provide safe, economic guarantee and performance safeguard for the investment of pressure energy comprehensive utilizing project, especially the screw expansion power generation project.
An automatic interlocking control technology based on natural gas pressure energy comprehensive utilization was designed to solve the adaptability on variable operating condition characteristics of natural gas pressure regulating station and the seamless switching of pressure regulating branch for energy power generation equipment, especially the screw expansion power generation equipment. The technique, which utilized the feedback characteristics of the voltage regulator and the equipment, can make quick switching on variable working conditions and fast automatically switching of pressure regulating branch for screw expansion power plant through pressure interlocking control. Through engineering practice, the feasibility of interlocking automatically control technology is successfully verified, which can provide safe, economic guarantee and performance safeguard for the investment of pressure energy comprehensive utilizing project, especially the screw expansion power generation project.
引文
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[3]Farzaneh-Gord S H A M. Energy destruction in Iran's natural gas pipe line network[J].Energy Exploration&Exploitation,2007,25(6):393-406.
[4]解东来,樊栓狮,徐东来.天然气利用新技术[M].北京:化学工业出版社,2012.
[5]SANAYE S,Mohammadi Nasab A.Modeling and optimizing a CHP system for natural gas pressure reduction plant[J].2012,40(1):358-369.
[6]段常贵.燃气输配[M].北京:中国建筑工业出版社,2011.
[7]ANDREI I,VALENTIN T,CRISTINA T,et al.Recovery of Wasted Mechanical Energy from the Reduction of Natural Gas Pressure[J].Procedia Engineering,2014,69(1):986-990.
[8]王玉君.天然气门站压力能的回收利用[J].冶金动力,2015(7):23-26.
[9]李白雪.燃气调压过程压力能及冷能用于发电的应用研究[D].武汉:华中科技大学,2016.
[10]郑斌.天然气压力能透平回收(火用)分析与联合循环研究[J].节能,2010(6):18-21.
[11]朱万炫.透平发电机组建模仿真及并网装置的设计与实现[D].大连:大连海事大学,2018.
[12]梁庆林.天然气透平膨胀发电技术在燃机电厂的应用[J].机电信息,2014(33):105-106.
[13]FARZANEH-GORD M,DEYMI-DASHTEBAYAZ M.Recoverable Energy in Natural Gas Pressure Drop Stations:A Case Study of the Khangiran Gas Refinery[J].Energy Exploration&Exploitation,2008,26(2):71-82.
[14]王硕.北京市天然气管网压力能发电技术方案研究[D].北京:北京建筑大学,2015.
[15]熊亚选,乔萃杰,李夏喜,等.基于单螺杆膨胀机的天然气调压系统性能分析[C]//2016中国燃气运营与安全研讨会论文集,嘉兴:[出版者不详],2016.
[16]庞燕梅.天然气压能冷能联合发电系统的理论分析与实验研究[D].天津:天津大学,2016.
[17]中华人民共和国国家发展和改革委.DL/T 863-2004汽轮机启动调试导则[S].北京:中国电力出版社,2004.
[18]任渊源,张卫灵,光旭,等.三菱M701F4联合循环机组天然气调压站优化设计[J].浙江电力,2018,37(10):79-83.
[19]严强,林祖宇.燃气-蒸汽联合循环ESD阀控制方式分析及改造[J].浙江电力,2018,37(3):94-97.
[20]王龙,曹建伟,郑攀东,等.天然气能源站接入电网的运行方式及其稳定性研究[J].浙江电力,2017,36(5):1-4.