1)Low NOx burner低NOx燃烧器
1.The current situation of NOx emission from the coal-fired units which were equipped with low NOx burner and wet limestone-gypsum FGD instrument were introduced briefly.介绍了装有石灰石—石膏湿法烟气脱硫系统且配置低NOx燃烧器锅炉的NOx排放状况,探讨烟气中NOx浓度的变化规律和NOx脱除率范围,并比较了原烟气和净烟气中NOx/NO的换算系数,为CEMS监测中的数据换算提供参考。
2)low NO x burner低NOx燃烧器
3)low NO_x burner低NOx燃烧器
1.Characteristic phenomena accompanying the formation of NOx in low NO_x burners and conventional impellerless pulverized coal burners,installed in 350MW power plant boilers,have been studied experimentally together with numerical simulation.对350 MW电站锅炉采用低NOx燃烧器和常规直流煤粉燃烧器的NOx生成特性进行了实验研究和数值模拟,结果表明:①最高温度、平均温度和中心温度等与炉膛高度的关系保持不变,即径向空气流分级不影响炉膛的燃烧特性;②采用低NOx燃烧器时,其炉膛中心的氧气浓度比采用常规直流煤粉燃烧器时要小;③炉膛截面平均NOx浓度和中心NOx浓度随炉膛高度的关系基本相似,但NOx最大浓度随炉膛高度的分布规律不同,采用低NOx燃烧器时NOx最大浓度明显与一、二次风布置有关,采用常规直流燃烧器的NOx最大浓度在燃烧器区域随高度分布呈现双峰形;④它们对应的平均NOx浓度最大值截面和平均温度最大值的截面的高度分别相同,但平均NOx浓度最大值截面比平均温度最大值的截面要低;采用低NOx燃烧器时,截面NOx浓度最大值区域比常规直流燃烧器有大幅度的减小;⑤低NOx燃烧器可比常规直流燃烧器降低NOx排放28。
4)low NOx combustion低NOx燃烧
1.The main control principle for NOx in a coal-fired power plant is low NOx combustion up to now in China, which is similar to that in the early stage in developed countries.我国法规与标准对燃煤电厂NOx的控制主要是以低NOx燃烧为控制原则,与发达国家初期控制NOx的政策类同,同时炉内低NOx燃烧技术也是发达国家后期进一步控制NOx加装烟气脱硝的重要前置控制。
2.Directing against contradiction between the high NOx emission and the difficulty in achievement of environment protection under condition of applying only the single low NOx combustion technology onto the W-shaped flame boiler,a scheme of combined application of low NOx combustion and SNCR technology has been put forward.针对W火焰锅炉的高NOx排放与单一采用低NOx燃烧技术很难使之达到环保标准的矛盾,提出了低NOx燃烧与SNCR技术联合应用方案。
英文短句/例句
1.Numerical Research on deNOx Technology of Fuel Staged Combustion;燃料分级低NOx燃烧技术数值研究
2.Numerical Research and Experimental Study on deNOx Technology of Pulverized Coal Boilers;煤粉炉低NOx燃烧技术的数值试验研究
3.Investigation of Operation Strategy on Low NOx Combustion Optimization of Coal Fired Utility Boiler;燃煤电站锅炉低NOx燃烧优化运行策略的研究
4.Numerical Simulation and Studies on the Performance of the Gas Turbine Dry Low NOx Combustor;燃气轮机干式低NOx燃烧室的性能数值模拟分析
5.Experimental Study on the Super Fine Grinding Performance of MPS Mill for Low NOx Pulverized Coal Combustion by Reburning再燃低NOx燃烧技术中超细磨煤机的试验研究
6.Investigations on Low NOx Combustion Systems for Large Capacity Supercritical and Ultra-supercritical Boilers;大型超临界、超超临界锅炉低NOx燃烧系统研究
7.Low NOx Combustion Adjustment of Guohua Panshan′s Russian-made 500MW Supercritical Boiler国华盘电俄制500MW超临界锅炉低NOx燃烧调整
8.Experimental, Theoretical and Numerical Simulation Research on Direct Flow Pulverized Coal Low NOx Combustion and Reburning Technology;直流煤粉低NOx燃烧和再燃技术的实验、理论与数值模拟研究
9.The Producing Mechanism and Simulation Research of Off-stoichiometric Combustion Low NOx;浓淡燃烧低NOx生成机理及模拟研究
10.The Applying Characteristic Research of Low NOx Pulverized-coal Burner;低NOx煤粉燃烧器的应用特性研究
11.Experimental Study on Effects of Pulverized Coal Characteristic on NOx Emission and CAT Study of Low NOx Deflectable Deposited Perimeter Air Combustion Burner;燃煤特性对NOx排放的影响及低NOx偏置周界风燃烧器CAT试验研究
12.Experimental Investigation and Numerical Simunation of Low NOx Emission in Gas Combution;燃气燃烧的低NOx排放实验研究与数值模拟
13.Research of Temperature Field of Gas High Temperature Combustion at Low Oxygen and NOx Emission Characteristic燃气高温低氧燃烧温度场及NOx排放特性的研究
14.Researches on Reduction of NOx Emission Rate from the Marine Diesel Engine in Low Temperature Combustoin;低温燃烧降低船用柴油机NOx排放率的研究
15.Investigation on Reducing NOx Emissions for Pulverized Coal-fired Burners in Power Plants;电站锅炉煤粉燃烧器降低NOx排放的研究
16.Numerical and Experimental Investigation on a Low NOx Emission Combustor for Micro Gas Turbine低NOx排放微型燃气轮机燃烧室的数值模拟及实验研究
17.Research and Numerical Simulation on Staged Combustion to Reduce NOx Exhaust of 400t/h Tangential Firing Boiler;400t/h四角切圆煤粉炉分级燃烧技术降低NOx排放的研究与数值模拟
18.Cold Simulation Experiment and Numerical Simulation on a New Type of Low NOx Combustion Swirl Burner;新型低NOx旋流燃烧器冷态模拟实验研究与数值模拟
相关短句/例句
low NO x burner低NOx燃烧器
3)low NO_x burner低NOx燃烧器
1.Characteristic phenomena accompanying the formation of NOx in low NO_x burners and conventional impellerless pulverized coal burners,installed in 350MW power plant boilers,have been studied experimentally together with numerical simulation.对350 MW电站锅炉采用低NOx燃烧器和常规直流煤粉燃烧器的NOx生成特性进行了实验研究和数值模拟,结果表明:①最高温度、平均温度和中心温度等与炉膛高度的关系保持不变,即径向空气流分级不影响炉膛的燃烧特性;②采用低NOx燃烧器时,其炉膛中心的氧气浓度比采用常规直流煤粉燃烧器时要小;③炉膛截面平均NOx浓度和中心NOx浓度随炉膛高度的关系基本相似,但NOx最大浓度随炉膛高度的分布规律不同,采用低NOx燃烧器时NOx最大浓度明显与一、二次风布置有关,采用常规直流燃烧器的NOx最大浓度在燃烧器区域随高度分布呈现双峰形;④它们对应的平均NOx浓度最大值截面和平均温度最大值的截面的高度分别相同,但平均NOx浓度最大值截面比平均温度最大值的截面要低;采用低NOx燃烧器时,截面NOx浓度最大值区域比常规直流燃烧器有大幅度的减小;⑤低NOx燃烧器可比常规直流燃烧器降低NOx排放28。
4)low NOx combustion低NOx燃烧
1.The main control principle for NOx in a coal-fired power plant is low NOx combustion up to now in China, which is similar to that in the early stage in developed countries.我国法规与标准对燃煤电厂NOx的控制主要是以低NOx燃烧为控制原则,与发达国家初期控制NOx的政策类同,同时炉内低NOx燃烧技术也是发达国家后期进一步控制NOx加装烟气脱硝的重要前置控制。
2.Directing against contradiction between the high NOx emission and the difficulty in achievement of environment protection under condition of applying only the single low NOx combustion technology onto the W-shaped flame boiler,a scheme of combined application of low NOx combustion and SNCR technology has been put forward.针对W火焰锅炉的高NOx排放与单一采用低NOx燃烧技术很难使之达到环保标准的矛盾,提出了低NOx燃烧与SNCR技术联合应用方案。
5)low NO_x combustion低NOx燃烧
1.In combination with the main international research trend of the low NO_X combustion technology of the coal burning boiler, the principle of the NO_X emission reduction by the application of the step air admission and gas reburning techology has been recommended.结合当前国际上燃煤锅炉低NOX燃烧技术研究的主流方向,介绍了空气分段燃烧和气体再燃技术降低NOX排放的原理。
6)multi-enriched LNB(MELNB)多重富集型低NOx燃烧器
延伸阅读
低NO_x煤粉燃烧器低NO_x煤粉燃烧器low NO_x pulverized-coal burner (1 iN()[11、、一f、一、一:一、11:一，‘一i低NO二煤粉燃烧器(low NOJ pulverized一eoalburner)能降低和抑制NO，生成的煤粉燃烧器。低N认煤粉燃烧器通过特殊的结构设计，采用空气分级(见空气分级)、燃料分级(见二次燃料再燃烧)、浓淡燃烧和烟气再循环等技术措施，尽可能地降低燃烧区的氧浓度和火焰的峰值温度，减少在高温区的停留时间，抑制NO，的生成，或使已生成的NO，在下游区域还原成NZ。其中空气分级是应用最广.比较成熟的低NO，技术。现有电站锅炉上采用的低NO，燃烧器的结构型式很多，随着制造厂的不同而有较大的差异，但基本原理类同。 双调风旋流燃烧器将二次风分成内二次风和外二次风两股气流，通过调风器和旋流叶片分别控制各NO，的生成，见图5。二次空气SGR一孟二次空气一次空气二次空气S口砚一二次空气 图5 SGR燃烧器 对于采用低NO，嫩烧器的锅炉，除燃用贫煤和无烟煤的以外，经过燃烧优化调整后，通常均可使NO，的排放量低于650 mg/m3(02=6%)(液态排渣锅炉NO，的排放量可能会比较高)。对于已有锅炉改用低NO二燃烧器时，因燃烧推迟而有可能会使效率降低一些。自的风量和旋流强度，以调节一、二次风的混合，使其在燃烧器出口附近的火焰根部形成缺氧富燃料区，使燃烧推迟，火焰温度降低，NO，的生成量减少，在下游形成富氧的燃尽区，保证燃料的完全燃烧，见图1。外二次风调风俗 ┌─┐ ┌────────┤川│ │l/沪. │ │ └────────┤ │┌─────────┤ ││一仁业班丛旦止罕生│ │└─────────┴─┘点火油枪次风+煤粉或烟气 图1双调风旋流燃烧器 低NO，直流燃烧器将80%左右的燃烧空气送人主燃烧器，在主燃烧器区域形成缺氧富燃料的工况，降低火焰峰值温度，既减少NO二的生成，又有可能使已生成的NO，还原成氮分子(NZ).从而减少NO二的排放量。而在主燃烧器的顶部设置燃尽风OFA，将剩余的空气由此送人炉膛，使未完全燃烧产物燃尽.见图2。
