[1]熊桂龙,杨林军,郭惠,等.水汽相变耦合撞击流作用下细颗粒物的脱除特性[J].东南大学学报(自然科学版),2012,42(5):904-909.[doi:10.3969/j.issn.1001-0505.2012.05.020]
 Xiong Guilong,Yang Linjun,Guo Hui,et al.Removal of fine particles from coal combustion by heterogeneous condensation coupled with coaxial impinging streams[J].Journal of Southeast University (Natural Science Edition),2012,42(5):904-909.[doi:10.3969/j.issn.1001-0505.2012.05.020]
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水汽相变耦合撞击流作用下细颗粒物的脱除特性()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第5期
页码:
904-909
栏目:
环境科学与工程
出版日期:
2012-09-20

文章信息/Info

Title:
Removal of fine particles from coal combustion by heterogeneous condensation coupled with coaxial impinging streams
作者:
熊桂龙 杨林军 郭惠 彭飞 赵汶
东南大学能源与环境学院,南京 210096; 东南大学能源热转换及其过程测控教育部重点实验室,南京 210096
Author(s):
Xiong Guilong Yang Linjun Guo Hui Peng Fei Zhao Wen
School of Energy and Environment, Southeast University, Nanjing 210096, China
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
细颗粒物 蒸汽相变 撞击流 脱除 压力降
Keywords:
fine particle heterogeneous condensation impinging streams removal pressure drop
分类号:
X51
DOI:
10.3969/j.issn.1001-0505.2012.05.020
摘要:
采用水汽相变和撞击流耦合的方法,研究了烟气对喷水平间距、烟气流速、水蒸气添加量等参数对细颗粒脱除效率和相变脱除后烟气中细颗粒中位粒径的影响,并分析测试了相应条件下系统的流体阻力和除雾器的压力降.结果表明:细颗粒脱除效率随烟气对喷水平间距的增加先增大后减小,随烟气流速和蒸汽添加量的增大而增大; 相变脱除后烟气中细颗粒中位粒径的变化规律与细颗粒脱除效率的变化规律相反; 系统阻力和除雾器的压降均随烟气流速的增大而增大; 随烟气对喷间距的增大,系统阻力减小,除雾器的压降基本保持不变.撞击流相变室的系统阻力小,细颗粒物脱除效率高,因此,蒸汽相变耦合撞击流是一种用于脱除细颗粒物的切实可行的方法.
Abstract:
The influences of the horizontal gap between the opposing impinging, the flue gas velocity and the addition amount of steam on the removal efficiency and the number median diameter of fine particles were analyzed, and the system resistance and the pressure drop of demister were investigated experimentally by using impinging streams coupled with heterogeneous condensation growth technology. The experimental results show that the increase in the horizontal gap between the opposing impinging causes an increased firstly but then decreased removal efficiency. And with the increase of the flue gas velocity and the addition amount of steam, the removal efficiency becomes higher and particle number median diameter is smaller. The variation of the number median diameter of fine particles is just contrary to that of the removal efficiency. Both the system resistance and the pressure drop of demister increase with the increase of the flue gas velocity. With the horizontal gap between the opposing impinging increasing, the system resistance decreases, but the pressure drop of demister almost keep stable. The system fluid resistance which is mainly consumed on demister is moderate and acceptable. The technology coupling impinging streams with heterogeneous condensational growth can bring high removal efficiency of fine particles and causes low power consumption, which makes it feasible and promising.

参考文献/References:

[1] 吴国平,胡伟,腾恩江,等.我国四城市空气中PM2.5和PM10的污染水平[J].中国环境科学,1999,19(2):133-137.
  Wu Guoping,Hu Wei,Teng Enjiang,et al.PM2.5 and PM10 pollution level in the four cities in China [J].China Environmental Science, 1999,19(2):133-137.(in Chinese)
[2] 陈俊,张军营,魏凤,等.燃煤超细颗粒物喷雾团聚的模型[J].煤炭学报,2005,30(5):632-636.
  Chen Jun,Zhang Junying,Wei Feng,et al.Modeling of submicron particle agglomeration in spray process from coal combustion [J].Journal of China Coal Society, 2005,30(5):632-636.(in Chinese)
[3] 刘锦辉,杨林军,熊桂龙,等.LIFAC烟气脱硫中应用蒸汽相变促进细颗粒物脱除的实验研究 [J].燃料化学学报,2011,39(1):1-7.
  Liu Jinhui,Yang Linjun,Xiong Guilong,et al.Experimental investigation on the improving removal of fine particle in LIFAC flue gas desulfurization by heterogeneous condensation [J].Journal of Flue Chemistry and Technology, 2011,39(1):1-7.(in Chinese)
[4] 熊桂龙,辛成运,杨林军,等.蒸汽相变协同湿法烟气脱硫系统中烟气温湿度变化特性 [J].中国电机工程学报,2011,31(8):18-24.
  Xiong Guilong,Xin Chengyun,Yang Linjun,et al.Temperature and humidity characteristics of flue gas from combined wet flue gas desulfurization system and heterogeneous condensation [J].Proceedings of the CSEE, 2011,31(8):18-24.(in Chinese)
[5] Yang Linjun,Bao Jingjing,Yan Jinpei,et al.Removal of fine particles in wet flue gas desulfurization system by heterogeneous condensation [J].Chemical Engineering Journal,2010,156(1):25-32.
[6] 鲍静静,杨林军,颜金培,等.应用蒸汽相变协同脱除细颗粒和湿法脱硫的实验研究[J].中国电机工程学报,2009,29(2):13-19.
  Bao Jingjing,Yang Linjun,Yan Jinpei,et al.Experimental study on combined wet flue gas desulfurization and removal of fine particles by heterogeneous condensation enlargement [J].Proceedings of the CSEE, 2009,29(2):13-19.(in Chinese)
[7] 颜金培,杨林军,沈湘林.氨法脱硫烟气中气溶胶凝结脱除动力学[J].中国电机工程学报,2011,31(29):41-47.
  Yan Jinpei,Yang Linjun,Shen Xianglin.Dynamics of aerosol condensational removal in ammonia desulfurization process [J].Proceedings of the CSEE, 2011,31(29):41-47.(in Chinese)
[8] Fan Fengxian,Yang Linjun,Yan Jinpei,et al.Numerical analysis of water vapor nucleation on PM2.5from municipal solid waste incineration[J].Chemical Engineering Journal, 2009,146(2):259-265.
[9] Berman Y,Tmair A.Experimental investigation of phosphate dust collection in impinging stream [J].Canadian Journal of Chemical Engineering, 1996,74(6):817-821.
[10] 张明星,陈海焱,颜翠平,等.对喷流除尘性能影响因素的正交实验研究[J].热能动力工程,2006,21(5):500-504.
  Zhang Mingxing,Chen Haiyan,Yan Cuiping,et al.An orthogonal experimental study of factors affecting dust removal performance by counter jet flows[J].Journal of Engineering for Thermal Energy and Power, 2006,21(5):500-504.(in Chinese)
[11] Lainer A I,Israfilov T D,Elperin I T,et al.Study of the process of trapping alunite dust in opposing flows [J].Tsvetnye Metally, 1975,4(9):42-45.
[12] Berman Y,Tmair A.Coalescence model of particles in coaxial impinging stream [J].Canadian Journal of Chemical Engineering, 1996,74(6):822-833.
[13] 伍沅.撞击流性质及其应用[J].化工进展,2001,20(11):8-13.
  Wu Yuan.Properties and application of impinging streams [J].Chemical Industry and Engineering Progress, 2001,20(11):8-13.(in Chinese)
[14] 熊桂龙,杨林军,颜金培,等.对喷流协同蒸汽相变对燃煤细颗粒脱除性能的影响[J].中国电机工程学报,2011,31(32):39-45.
  Xiong Guilong,Yang Linjun,Yan Jinpei,et al.Removal of fine particles form coal combustion by combined impinging streams and heterogeneous condensation[J].Proceedings of the CSEE, 2011,31(32):39-45.(in Chinese)
[15] 熊桂龙,杨林军,颜金培,等.应用蒸汽相变脱除燃煤湿法脱硫净烟气中细颗粒物[J].化工学报,2011,62(10):2932-2938.
  Xiong Guilong,Yang Linjun,Yan Jinpei,et al.Removal of fine particles by heterogeneous condensation form wet-process desulfurized flue gas [J].CIESC Journal, 2011,62(10):2932-2938.(in Chinese)
[16] 熊桂龙,杨林军,颜金培,等.蒸汽相变与撞击流耦合促进细颗粒物脱除[J].东南大学学报:自然科学版,2011,41(4):761-766.
  Xiong Guilong,Yang Linjun,Yan Jinpei,et al.Improving removal of fine particles by coupling heterogeneous condensation with impinging streams [J].Journal of Southeast University:Natural Science Edition, 2011,41(4):761-766.(in Chinese)

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备注/Memo

备注/Memo:
作者简介: 熊桂龙(1981—),男,博士生; 杨林军(联系人),男,博士,教授,博士生导师,ylj@seu.edu.cn.
基金项目: 国家高技术研究发展计划(863计划)资助项目(2008AA05Z306)、江苏省自然科学基金资助项目(BK2008283).
引文格式: 熊桂龙,杨林军,郭惠,等.水汽相变耦合撞击流作用下细颗粒物的脱除特性[J].东南大学学报:自然科学版,2012,42(5):904-909. [doi:10.3969/j.issn.1001-0505.2012.05.020]
更新日期/Last Update: 2012-09-20