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《双效并流立体旋液式塔板压降的实验研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第43卷第6期化学工程Vo1.43No.62015年6月CHEMICALENGINEERING(CHINA)Jun.2015双效并流立体旋液式塔板压降的实验研究唐猛,张少峰,孙双双,刘燕,张伟(河北工业大学1.化工学院;2.海水资源高效利用化工技术教育部工程研究中心,天津300130)摘要:采用全新工艺流程,设计了一种新型双效气液并流吸收塔,塔内安装有改进型立体旋液式塔板。分别以空气、空气-水作为研究体系进行实验,考察了不同操作参数与塔板结构参数下双效气液并流吸收塔的干塔压降、湿塔压降以及立体旋液式塔板的干板压
2、降、湿板压降,明确了双效气液并流吸收塔的操作参数范围。实验结果表明:立体旋液式塔板单板干板压降及湿板压降分别控制在70Pa,180Pa以内。在一效、二效各逆向安装3块塔板,全塔共完全安装6块塔板时,全塔压降最大,但是干塔压降及湿塔压降可分别控制在2400Pa,2800Pa以内,双效气液并流吸收塔与立体旋液式式塔板的组合在能耗及操作弹性方面优势明显。关键词:吸收塔;双效;气液并流;塔板;压降中图分类号:TQ053.5文献标识码:A文章编号:1005-9954(2015)06-0019-06DoI:10.3969/
3、j.issn.1005-9954.2015.06.005Experimentalstudyonpressuredropofstereoscopicswirltrayindouble.efectcocurrentflowabsorptioncolumnTANGMeng,ZHANGShao-feng‘,SUNShuang-shuang,LIUYan,ZHANGWei(1.SchoolofChemicalEngineeringandTechnology;2.EngineeringResearchCenterofSea
4、waterUtilizationTechnologyofMinistryofEducation,HebeiUniversityofTechnology,Tianjin300130,China)Abstract:Bymeansofanovelprocess,anewtypeofdouble—effectgas—liquidcocurrentflowabsorptioncolumnwasdesigned,insidewhichanimprovedstereoscopicandswidtraywasinstalled
5、.Usingairandair-waterasexperimentalresearchsystems,respectively,thedryandwetpressuredropsofthenewabsorptioncolumnandthestereoscopicandswidtraywereexaminedunderdifferentoperatingparametersandtraystructuralparameters,determiningtheoperatingparametersf0rthisnew
6、absorptioncolumn.Experimentalresuhsshowthatdryandwetpressuredropsofasinglestereoscopicandswirltrayarecontrolledat70Paand180Parespectively.Thelargestwholecolumnpressuredropisachievedwhenthreetraysarereverselyinstalledatthefirstandsecondeffectsrespectively,i.e
7、.intotal,sixtraysareinstalledinthecolumn,whereasthedryandwetpressuredropsofthecolumnarecontrolledwithin2400Paand2800Parespectively.Thiscombinationofthenewabsorptioncolumnandtheimprovedtraygivessignificantadvantagesinoperatingflexibilityandenergyconsumption.K
8、eywords:absorptioncolumn;double—effect;gas—liquidcocurrentflow;columntray;pressuredrop塔设备是化工、炼油等生产中最重要的设备之者也对气液并流塔进行了一些研究,但传质效果较一[。传统塔设备采用液下气上的气液逆流接触低,且对液相资源耗费较大m。1964年何煜[11指传质,虽然传质效果理想,但由于受到气速的
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