气箱式脉冲喷吹袋式除尘器清灰系统主要技术参数的确定.pdf

第28卷第8期环境科学学报Vo.l28,No.8
2008年8月ActaScientiaeCircumstantiaeAug.,2008

吴岩,郝文阁,裴莹莹,等.2008.气箱式脉冲喷吹袋式除尘器清灰系统主要技术参数的确定[J].环境科学学报,28(8):1593-1598
WuY,HaoWG,PeiYY,etal.2008.Establishmentoftechnicalparametersforthedustcleaningsystemoftheairchambertypepulsejetbagfilter[J].
ActaScientiaeCircumstantiae,28(8):1593-1598
气箱式脉冲喷吹袋式除尘器清灰系统主要技术参数
的确定
吴岩1,2,郝文阁1,*,裴莹莹1,赵光玲1

1.东北大学资源与土木工程学院,沈阳110004
2.沈阳农业大学土地与环境学院,沈阳110161
收稿日期:20070709修回日期:20080114录用日期:20080526

摘要:为了揭示气箱式脉冲袋式除尘器的清灰机理,应用压缩气体流动能量方程,推导出滤袋表面的反向清灰风速数学表达式;根据袋式除尘
器实验模型测定的数据,得出了剥离力与粉尘剥离率之间的关系式,并在此基础上提出了清灰系统设计方法;应用气体射流理论得到了脉冲喷
吹质量流量、喷吹口直径、空压机供气压力和供气量的计算公式.结果表明,在粉尘负荷一定的条件下,给定预期的剥离率,可以得到所必需的
反向清灰风速和喷吹气体流量,据此可以确定清灰系统的主要技术参数.
关键词:气箱式脉冲袋式除尘器;脉冲清灰;剥离率;剥离力;射流

文章编号:02532468(2008)08159306中图分类号:X701.2文献标识码:A

Establishmentoftechnicalparametersforthedustcleaningsystemoftheair
chambertypepulsejetbagfilter

WUYan1,2,HAOWenge1,*,PEIYingying1,ZHAOGuangling1
1.CollegeofResourcesandCivilEngineering,NortheasternUniversity,Shenyang110004
2.CollegeofsoilandEnvironment,AgriculturalUniversity,Shenyang110161
Received9July2007;receivedinrevisedform14January2008;accepted26May2008

Abstract:Inordertoresearchthedustcleaningmechanismoftheairchambertypepulsejetbagfilter,energyequationsofcompressedgasflowwereused
todeduceamathematicalexpressionforthereverseairvelocity.Basedonthebenchscaletestresultsforthebagfilter,therelationshipbetween
detachmentstressanddustcleaningefficiencywasobtained.Adesignmethodforthedustcleaningsystemisthensuggested.Applyingtheejectingflow
theory,formulasforejectingmassflow,nozzlediameter,compressedairpressureandcompressedairquantitywerealsoproposed.Thereverseairvelocity
andflowcouldbecalculatedfromthesettingdustcleaningefficiencyunderacertaindustloadandthemaintechnicalparameterscouldthenbe
determined.
Keywords:airchambertypepulsejetbagfilter;pulsejetdustcleaning;dustcleaningefficiency;detachmentstress;ejectingflow

构;气箱下部有花板,用以安装滤袋,上口不必设置
1引言(Introduction)
文丘里管及喷吹管,安装维护方便;每个气箱只需