LNASB轴向旋流式煤粉燃烧器的微油点火改造.docx

LNASB轴向旋流式煤粉燃烧器的微油点火改造
摘要
LNASB轴向旋流式煤粉燃烧器是一种高效能的燃烧器，但是其原本采用的微粒点火方式存在点火成功率低、稳定性差等问题。本文旨在通过将微粒点火改为微油点火的方式，提高该燃烧器的点火性能，同时探究微油点火的优势和局限。本文首先对LNASB轴向旋流式煤粉燃烧器进行了简单介绍，然后详细阐述了微油点火的原理和实现方法，接着通过对实验数据的分析，探讨了微油点火对点火稳定性的影响，最后总结了微油点火的优势以及适用范围。本文研究表明，微油点火确实能够提高煤粉燃烧器的点火性能和燃烧效率，但是对燃烧器的易用性和维护成本也存在一定影响。
关键词：LNASB轴向旋流式煤粉燃烧器；微粒点火；微油点火；点火稳定性；燃烧效率。
Introduction
LNASBaxialswirlcoalpowderburnerisanefficientcombustiondevice,whichhasbeenwidelyusedinvariousindustrialfields.However,theoriginalparticleignitionmethodoftheburnerhassomedisadvantages,suchaslowignitionsuccessrateandpoorstability.Inordertoimprovetheignitionperformanceoftheburner,itisnecessarytoexplorenewignitionmethods.Amongthem,oilignitionisacommonlyusedmethod,whichhastheadvantagesofhighignitionsuccessrate,stablecombustionandeasyoperation.Inthispaper,themicro-oilignitionmodificationofLNASBaxialswirlcoalpowderburnerwasstudied,aimingtoimprovetheignitionperformanceoftheburnerandexploretheadvantagesandlimitationsofthemicro-oilignition.
Methodology
Theprincipleandimplementationmethodofmicro-oilignitionweredetailedanalyzedinthispaper,involvingthefuelinjectiontechnology,ignitionsourceselection,andignitioncharacteristicscomparisonwithparticleignition.Theexperimentaltestbedwasconstructedinordertocomparethemicro-oilignitionandthemicro-particleignition.Theeffectsofdifferentinjectionparametersandignitionenergyontheignitioncharacteristics,time,andenergywereanalyzed,andsimulationperformancewasdiscussedusingCFDsimulationsoftware.
Results
Theresultsshowthatthemicro-oilignitionsuccessfullyimprovedtheignitionperformanceoftheLNASBaxialswirlcoalpowderburner.Theignitionsuccessrateandthecombustionstabilityweresignificantlyincreasedcomparedtotheoriginalmicro-particleignitionmethod,andthecombustionefficiencywasalsoimproved.However,themodificationalsohassomelimitations,suchashighermaintenancecostsandrequirementofprofessionaltrainingoperating.
Conclusions
Theapplicationofmicro-oilignitiontoLNASBaxialswirlcoalpowderburnercanimproveitsignitionperformance,optimiz