Premixed metal fibre burners based on a Pd catalyst

As an alternative to previously developed catalytic FeCrAlloy fibre mat burners based on perovskite catalysts, new catalytic burners have been developed based on Pd catalyst on lantana-stabilised Al₂O₃ and different fibre structures (NIT100A, NIT100S and NIT200S by ACOTECH NV). All development steps are considered, shifting from catalyst preparation (based on combustion synthesis of γ-Al₂O₃) to the optimisation of lantana and Pd loadings, from the definitions of the best catalyst-deposition conditions (washcoating) to the catalytic burners performances, determined in an ad hoc developed combustion chamber. The results show almost half pollutants emissions and better performance compared to various non-catalytic counterparts, especially as far as CO and NO_x emissions are concerned. Some flame instability problems were though registered, especially for one of the catalytic burner mattresses employed, at low specific power inputs and excesses of air (<375 kW/m² and <12%, respectively). Further, PdO/Pd transition is shown to influence the dynamic behaviour of the catalytic burners.     

旋流燃烧器的冷态试验研究

通过轴向可动叶轮旋流燃烧器改造方案的冷态模拟试验，给出了冷态空气动力场的测量结果．对测量结果进行了有益的讨论，得到的结论对旋流燃烧器的改造提供了基本依据     

低负荷稳燃和高负荷防结渣复合型燃烧器研究开发

针对电站燃煤锅炉实际存在的低负荷稳燃和高负荷防结渣的矛盾，设计了一种新型复合型燃烧器。为确切了解复合型燃烧器的气固两相流动情况，在单喷口冷模实验台和四角喷燃炉冷模实验台上，对不同结构型式和尺寸的复合型燃烧器进行了大量的冷模试验，推荐了合理的结构和尺寸，为复合型燃烧器在电站锅炉上的应用提供了依据。实炉试验结果表明，设计达到了预期设想。     

不同燃烧器高宽比下炉内空气动力特性的试验研究

本文应用相似模化理论对烟煤型燃烧器进行炉内冷态试验研究.通过对一次风射流的偏转,炉内气流的旋转强度、充满程度,燃烧器射流两侧的补气条件,炉膛出口的速度分布等特性随着燃烧器高宽比H/B的变化规律的研究,提出了较为理想的大型电站锅炉烟煤型燃烧器高宽比的范围,为指导电站锅炉燃烧器的设计和改造提供理论参考。     

浅谈壳牌气化炉煤烧嘴的安装

壳牌气化炉烧嘴系统在气化炉的开车和运行中极其重要,具有安装位置特殊、装配精度要求高的特点.介绍了壳牌气化炉烧嘴系统的组成,详细叙述了煤烧嘴的安装步骤及注意事项.     

煤粉锅炉无油直接点火和稳燃技术述评

结合13种参考文献，对20多年来国外煤粉锅炉的无油直接点火和稳燃技术做了述评，着重介绍直接点火煤粉的供粉系统和点火煤粉燃烧器的发展，并列出了根据现场具体条件设计和选用的一些准则。     

烧嘴偏烧原因及防止措施

针对一段炉顶烧嘴发生偏烧现象进行分析,应用燃烧理论,找出燃烧不好的原因,并制定相应的防范措施,以确保转化管安全运行。     

Results of Complex Tests of the TGMP-314 Boiler of Cogeneration Plant-23 of the Mosénergo Company After Renovation

Results of complex tests of the TGMP-314 boiler of thermal power plant-23 of the Mosénergo Company operating on natural gas and furnace oil after design improvement are presented. Toxic emissions of nitrogen oxides were diminished by the use of low-toxicity burners, supply of air to secondary blow nozzles, and introduction of recirculating gases into the burner channels. These measures lowered the emissions of NO_x, benz(a)pyrene, and other harmful substances into the atmosphere below the standardized values. The boiler proved to operate reliably in the entire range of tested loads in the gas- and oil-fired modes with stage firing and recirculation of flue gases. The rated parameters of live steam and reheat steam were steadily maintained.     

CFD在蓄热式烧嘴设计上的应用

应用Fluent软件对不同结构的蓄热烧嘴进行了数值模拟，对自行设计的4套烧嘴8种标准设计工况的温度分布、组分分布和速度分布进行了数值仿真，分析了不同预热温度对温度分布、组分分布的影响。     

大型金属纤维燃气红外辐射板的研究

文章介绍了大型金属纤维燃气红外辐射板的结构、关键技术和试验方法，分析和总结了金属纤维的局部阻力系数和孔隙率、辐射板表面均匀性和辐射板燃烧工况等实验数据，为进一步研究、设计和应用金属纤维燃烧器打下了良好的基础。