新型火炬燃烧器的研究与设计
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摘要
火炬燃烧器是火炬燃烧系统中的关键部件,目前火炬燃烧器存在NOx排放量超标和冒黑烟的问题.为了解决该问题,运用Fluent对现有燃烧器进行了数值模拟,探究了问题存在的原因并对燃烧器的结构进行优化设计,发现当火炬气喷管直径为38 mm,预混室直径为400 mm,并辅以蒸汽消烟装置时,NOx排放量超标和冒黑烟问题能够基本消除,从而使现有燃烧器对环境的污染问题得到控制.
The flare burner is a key component in the flare combustion system.At present,the flare burner has the problem of excessive NOx emissions and black smoke.In order to solve this problem,Fluent was used to numerically simulate the existing burner,explores the cause of the problem and optimizes the structure of the burner.It was found that when the diameter of the flare gas nozzle is 38 mm,the diameter of the premixing chamber is 400 mm and supplemented by a steam smoke-eliminating device,the problem of excessive NOx emissions and black smoke can be substantially eliminated,thereby controlling the environmental pollution of existing burners.
The flare burner is a key component in the flare combustion system.At present,the flare burner has the problem of excessive NOx emissions and black smoke.In order to solve this problem,Fluent was used to numerically simulate the existing burner,explores the cause of the problem and optimizes the structure of the burner.It was found that when the diameter of the flare gas nozzle is 38 mm,the diameter of the premixing chamber is 400 mm and supplemented by a steam smoke-eliminating device,the problem of excessive NOx emissions and black smoke can be substantially eliminated,thereby controlling the environmental pollution of existing burners.
引文
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[2] 张志刚.地面火炬安全风险的探讨与分析[J].炼油技术与工程,2007,37(7):52-56.
[3] 季金华,朱耀莉.地面火炬的安全应用[J].安全技术与管理,2003,3(2):13-15.
[4] 刘向宏,王一,潘丽芳.地面火炬系统的安全设计[J].辽宁化工,2010,39(3):319-321.
[5] 苟彬德.多点式地面火炬的安全环保性能初探[J].石油化工设计,2015,32(1):10-13.
[6] 李立力.封闭式地面火炬系统安全分析与风险控制[J].广州化工,2014,42(1):110-112.
[7] 曾波.封闭式地面火炬在LNG接收站的应用[J].广州化工,2015,43(13):158-160.
[8] 王伟沧.高火炬设计[J].石油化工设备技术,1987,8(4):43-52.
[9] 许立鸿,李永经,赵秀娟.火炬气的回收利用及安全技术改造[J].石化技术与应用,2006,24(3):221-223.
[10] 刘寅立,唐豪,Zhao Feng Tian.双旋流燃烧器内旋流——回流相互作用机理的数值研究[J].节能技术,2016,34(3):200-204.
[11] 刘兴茂,寇国,王相飞,等.蒸汽消除火炬黑烟的原理与方法[J].河北化工,2010,33(6):68-69.
[12] 中国船舶重工集团公司第七一一研究所.蒸汽助燃型火炬燃烧器[P].中国专利:200610118675.1,2007-05-09.
[13] 陕西金黎明石化工程有限公司.蒸汽引射预混式地面燃烧器[P].中国专利:200820028001.7,2009-01-14.
[14] Marcin Dutka,Mario Ditaranto,Terese Lovas.NOx emissions and turbulent flow in a partially premixed bluff body burner with CH4 and H2 fuels[J].International Journal of Hydrogen Energy,2017,41(28):12 397-12 410.
[15] Shuguang Ti,Zhichao Chen,Min Kuang.Numerical simulation of the combustion characteristics and NOx emission of a swirl burner:Influence of the structure of the burner outlet[J].Applied Thermal Engineering,2018,32(6):565-576.
[16] M.de Joannon,P.Sabia,G.Sorrentino.Small size burner combustion stabilization by means of strong cyclonic recirculation[J].Proceedings of the Combustion Institute,2017,35(10):1-9.
[17] 姬海民,李红智,姚明宇,等.低NOx燃气燃烧器结构设计及性能试验[J].热力发电,2015,44(2):115-116.
[18] 古静.环保型废气燃烧地面火炬系统的研究[D].西安:陕西科技大学,2012.
[19] 隋先富,王玉,张岭.放空火炬冒黑烟问题原因深度剖析[J].工业技术,2016,37(10):57-58.