脱硫除雾器除雾性能研究
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摘要
除雾器除雾效率偏低引起烟气-烟气换热器(GGH)堵塞是目前许多电厂脱硫系统运行中存在的问题。本文以神华广东国华粤电台山发电有限公司1号机组脱硫系统除雾器为研究对象,搭建了除雾器试验台,对脱硫除雾器性能进行了试验研究,提出了相应的优化方案。试验结果表明,通过优化除雾器的各个参数,如板型、板间距、烟气流速等可以有效的提高除雾器的除雾效率,从而在一定程度上缓解GGH的堵塞问题。文章的分析结果对脱硫除雾器的设计和制造以及对脱硫系统烟道的设计和布置有重要的参考价值和指导意义。
Due the low demist efficiency,the Gas-Gas Heater(GGH) in the Wet Flue Gas Desulphurization system is often blocked by the accumulated gypsum slurry scale.An experiment system was built to study the demist character of the mist eliminator.The study demonstrated that the demist efficiency could be improved through the optimization of the parameters of the mist eliminator such as the vane space,the vane style,the flue gas velocity,thus the block of GGH would be alleviated.The study results can provide guidance to the design of the mist eliminator and the flue of the desulphurization system.
Due the low demist efficiency,the Gas-Gas Heater(GGH) in the Wet Flue Gas Desulphurization system is often blocked by the accumulated gypsum slurry scale.An experiment system was built to study the demist character of the mist eliminator.The study demonstrated that the demist efficiency could be improved through the optimization of the parameters of the mist eliminator such as the vane space,the vane style,the flue gas velocity,thus the block of GGH would be alleviated.The study results can provide guidance to the design of the mist eliminator and the flue of the desulphurization system.
引文
[1]国家环保总局.2006年中国环境状况公报.北京,2007
[2]国家环保总局.国家环境保护“十一五”规划.北京,2005
[3]周至祥,段建中,薛建明等.火电厂湿法烟气脱硫技术手册[M].北京:中国电力出版社,2006
[4]蒋文举.烟气脱硫脱硝技术手册[M].北京:化学工业出版社,2006
[5]刘欣.600MW机组鼓泡床内脱除小液滴的试验研究.[硕士学位论文].北京:华北电力大学,2008
[6]董谊仁,孙凤珍.塔设备除雾技术[J].化工生产与技术,2000,7(2):6-11
[7]Jortan GV.Chem Eng Progs[J].1965,61(10):64
[8]Adamson A W.Physical Chemistry of Surface[J],Interscience Publishers Lnc,New York,1960
[9]Holmes T L,Chen G K.Chemical Engineering[J].1984,(15):82
[10]Capps R W.Chem Eng Progs[J].1994,90(12):49
[11]FabianP,Cusack R,Hennessey P,et.Chem Eng[J].1993(11):148
[12]McNulty K J,Monat J P.Chem Eng Progs[J].1987,83(5):48
[13]Monat J P,McNulty K J,Michelson I S.Chem Eng Progs[J].1986,82(12):32
[14]Calvert et al.Entrainment Separation for Scrubbers:Final Report,Oct.1973 to June 1975,APT,NTIS Publ.PB-238050/EPA650/2-74-119-b,1975
[15]Calvert,Jashnani,Yung.J.A.P.C.A,24(10),P.971,1974.10
[16]Lunde,Lapple.Chem Eng Progs[J].1957,53,358
[17]Fluent Inc.User's Guide[M].2005
[18]R.Rahimi,D.Abbaspour.Determination of pressure drop in wire mesh mist eliminator by CFD.Chemical Engineering and processing[J].2007
[19]B.J.Azzopardi,K.S.Sanaullah.Re-entrainment in wave-plate mist eliminators.Chemical EngineeringScience[J].2002,57:3557-3563
[20]A.Buerkholz,Droplet Separation.VCH,New York,1989.
[21]陶文铨.数值传热学,第二版[M].西安:西安交通大学出版社.2004
[22]周力行.多相湍流反应流体力学[M].北京:国防工业出版社,2002
[23]苏坚,张小可.电厂SCR烟气脱硝系统流场数值模拟[J].锅炉技术,2005,36(4),73-76
[24]郎方年,脱硫除雾器的流体动力学特性研究[硕士学位论文].江苏:江苏大学,2003
[25]华伟,挡板除雾器的动力学特性研究[硕士学位论文].北京:华北电力大学,2003
[26]盘思伟,程诺伟,姚唯建.湿法脱硫装置的脱硫效率与除雾器性能测试方法[J].电力环境保护,2002,18(4):13-14
[27]黄云峰,张振中,江锋等.核级除雾器除雾效率的测量[J].核动力工程,2006,27(1):70-72
[28]杨柳,王世和,王小明等.湿法烟气脱硫系统除雾器特性试验研究[J].热能动力工程,2005,20(2):145-147
[29]杨柳,王世和,王小明.湿式脱硫塔除雾器流场的数值模拟[J].华东电力,2004,32(10):4-6
[30]赵毅,华伟,王亚君等.湿式烟气脱硫塔中折线型挡板除雾器分离效率的数值模拟[J].中国动力工程学报,2005,25(2):294-297
[31]金定强.脱硫除雾器设计[J].电力环境保护,2001,17(4):16-18
[32]P.W.James,B.J.Azzopardi,Y.Wang,et.Model For Liquid Film Flow And Separation In A Wave-Plate Mist Eliminator[J].Chemical Engineering Research and Design,83(A5):469-477
[33]Chiara Galletti,Elisabetta Brunazzi,Leonardo Tognotti.A numerical model for gas flow and droplet motion in wave-plate mist eliminators with drainage channels[J].Chemical Engineering Science,2008,63:5639-652
[34]R.Rahimi,D.Abbaspour.Determination of pressure drop in wire mesh mist eliminator by CFD[J].Chemical Engineering and Processing,2007
[35]B.Raj Mohan,B.C.Meikap.Performance Characteristics of the Particulate Removal in a Novel Sray-cum-bubble Column Scrubber[J].Chemical Engineering Research and Design,2009,87:109-118
[36]Hisham T.El-Dessouky,Imad M.Alatiqi.Performance of wire mesh mist eliminator [J].Chemical Engineering and Processing,2000,39:129-139
[37]B.J.Azzopardi,K.S.Sanaullah.Re-entrainment in wave-plate mist eliminators[J].Chemical EngineedngScience,2002,57:3557-3563
[38]P.W.James,Y.Wang,B.J.Azzopardi,J.P.Hughes.The Role of Drainage Channels in The Performance of Wave-Plate Mist Eliminators.Trans IChemE,Vol 81,Part A,July 2003
[2]国家环保总局.国家环境保护“十一五”规划.北京,2005
[3]周至祥,段建中,薛建明等.火电厂湿法烟气脱硫技术手册[M].北京:中国电力出版社,2006
[4]蒋文举.烟气脱硫脱硝技术手册[M].北京:化学工业出版社,2006
[5]刘欣.600MW机组鼓泡床内脱除小液滴的试验研究.[硕士学位论文].北京:华北电力大学,2008
[6]董谊仁,孙凤珍.塔设备除雾技术[J].化工生产与技术,2000,7(2):6-11
[7]Jortan GV.Chem Eng Progs[J].1965,61(10):64
[8]Adamson A W.Physical Chemistry of Surface[J],Interscience Publishers Lnc,New York,1960
[9]Holmes T L,Chen G K.Chemical Engineering[J].1984,(15):82
[10]Capps R W.Chem Eng Progs[J].1994,90(12):49
[11]FabianP,Cusack R,Hennessey P,et.Chem Eng[J].1993(11):148
[12]McNulty K J,Monat J P.Chem Eng Progs[J].1987,83(5):48
[13]Monat J P,McNulty K J,Michelson I S.Chem Eng Progs[J].1986,82(12):32
[14]Calvert et al.Entrainment Separation for Scrubbers:Final Report,Oct.1973 to June 1975,APT,NTIS Publ.PB-238050/EPA650/2-74-119-b,1975
[15]Calvert,Jashnani,Yung.J.A.P.C.A,24(10),P.971,1974.10
[16]Lunde,Lapple.Chem Eng Progs[J].1957,53,358
[17]Fluent Inc.User's Guide[M].2005
[18]R.Rahimi,D.Abbaspour.Determination of pressure drop in wire mesh mist eliminator by CFD.Chemical Engineering and processing[J].2007
[19]B.J.Azzopardi,K.S.Sanaullah.Re-entrainment in wave-plate mist eliminators.Chemical EngineeringScience[J].2002,57:3557-3563
[20]A.Buerkholz,Droplet Separation.VCH,New York,1989.
[21]陶文铨.数值传热学,第二版[M].西安:西安交通大学出版社.2004
[22]周力行.多相湍流反应流体力学[M].北京:国防工业出版社,2002
[23]苏坚,张小可.电厂SCR烟气脱硝系统流场数值模拟[J].锅炉技术,2005,36(4),73-76
[24]郎方年,脱硫除雾器的流体动力学特性研究[硕士学位论文].江苏:江苏大学,2003
[25]华伟,挡板除雾器的动力学特性研究[硕士学位论文].北京:华北电力大学,2003
[26]盘思伟,程诺伟,姚唯建.湿法脱硫装置的脱硫效率与除雾器性能测试方法[J].电力环境保护,2002,18(4):13-14
[27]黄云峰,张振中,江锋等.核级除雾器除雾效率的测量[J].核动力工程,2006,27(1):70-72
[28]杨柳,王世和,王小明等.湿法烟气脱硫系统除雾器特性试验研究[J].热能动力工程,2005,20(2):145-147
[29]杨柳,王世和,王小明.湿式脱硫塔除雾器流场的数值模拟[J].华东电力,2004,32(10):4-6
[30]赵毅,华伟,王亚君等.湿式烟气脱硫塔中折线型挡板除雾器分离效率的数值模拟[J].中国动力工程学报,2005,25(2):294-297
[31]金定强.脱硫除雾器设计[J].电力环境保护,2001,17(4):16-18
[32]P.W.James,B.J.Azzopardi,Y.Wang,et.Model For Liquid Film Flow And Separation In A Wave-Plate Mist Eliminator[J].Chemical Engineering Research and Design,83(A5):469-477
[33]Chiara Galletti,Elisabetta Brunazzi,Leonardo Tognotti.A numerical model for gas flow and droplet motion in wave-plate mist eliminators with drainage channels[J].Chemical Engineering Science,2008,63:5639-652
[34]R.Rahimi,D.Abbaspour.Determination of pressure drop in wire mesh mist eliminator by CFD[J].Chemical Engineering and Processing,2007
[35]B.Raj Mohan,B.C.Meikap.Performance Characteristics of the Particulate Removal in a Novel Sray-cum-bubble Column Scrubber[J].Chemical Engineering Research and Design,2009,87:109-118
[36]Hisham T.El-Dessouky,Imad M.Alatiqi.Performance of wire mesh mist eliminator [J].Chemical Engineering and Processing,2000,39:129-139
[37]B.J.Azzopardi,K.S.Sanaullah.Re-entrainment in wave-plate mist eliminators[J].Chemical EngineedngScience,2002,57:3557-3563
[38]P.W.James,Y.Wang,B.J.Azzopardi,J.P.Hughes.The Role of Drainage Channels in The Performance of Wave-Plate Mist Eliminators.Trans IChemE,Vol 81,Part A,July 2003
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