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化工学报  2014 

螺旋板换热器轴向错流通道湿法捕尘拟均相模型

DOI: 10.3969/j.issn.0438-1157.2014.02.009, PP. 430-436

Keywords: 螺旋板换热器,轴向错流,冷却冷凝,湿法除尘,拟均相模型

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Abstract:

提出了螺旋板换热器轴向错流通道冷却冷凝湿法除尘的方法,指出了PM2.5在尾气对流传热传质边界层内热泳和伴随水蒸气冷凝的扩散泳运动特征和冷凝液膜吸收除尘机理并建立了拟均相模型,获得了PM2.5浓度衰减函数和以冷凝通量nw为参数的捕尘效率模型。通过“三传”类比获得了从尾气流速求取模型参数的方法,并通过恒壁温条件下冷却冷凝实验数据验证了模型参数计算方法的正确性,结果表明水蒸气组分扩散体积通量即PM2.5扩散泳速度Vw是控制性参数,其值在20~40mm·s-1范围。

References

[1]  McKenna J D, Turner J H, McKenna J P. Fine Particle (2.5 Microns) Emissions: Regulation, Measurement, and Control [M]. Hoboken, New Jersey: John Wiley & Sons Inc., 2008: 1-247
[2]  Ehrlich C, Noll G, Kalkoff W D, et al. PM10, PM2.5 and PM1.0—emissions from industrial plants—results from measurement programs in Germany [J]. Atmospheric Environment, 2007, 41: 6236-6254
[3]  van Harmelen A K, Kok H J G, Visschedijk A J H. Potentials and costs to reduce PM10 and PM2.5 emissions from industrial sources in the Netherlands[R]. Apeldoorn: TNO Environment, Energy and Process Innovation, 2002: 1-61
[4]  Wu Junping(吴军平). Hazard and control of PM2.5 disposal from cement industry [J]. Cement Guide for New Epoch(新世纪水泥导报), 2011 (5): 18-20
[5]  Perry R H, Green D W, Maloney J O. Perry's Chemical Engineer's Handbook [M]. New York: McGraw-Hill Co. Inc., 1999: 6-47
[6]  Xiong Guilong(熊桂龙), Yang Linjun(杨林军), Yan Jinpei(颜金培), et al. Removal of fine particles by heterogeneous condensation from wet-process desulfurized flue gas [J]. CIESC Journal(化工学报), 2011, 62(10): 2932-2938
[7]  Chen Zhiliang(陈治良), Wei Wenyun(魏文韫), Zhu Jiahua(朱家骅), et al. Investigation on the mechanism of micro-partical motion across a falling liquid cylinder for PM2.5 separation(Ⅱ): Efficiency of PM2.5 separation from heavy-duty diesel exhausts[J]. CIESC Journal(化工学报), 2012, 63(7): 2012-2016
[8]  Zhu Jiahua (朱家骅), Xia Sulan (夏素兰), Wei Wenyun (魏文韫), et al. PM2.5 removal — advances in wet collection technologies and a novel approach through temperature swing multi-phase flow[J]. CIESC Journal (化工学报), 2013, 64(1): 155-163
[9]  O Bana Ei Ro. Design Handbook of Heat Exchanger(热交换器设计手册)[M]. Xu Zhongquan(徐中权),trans. Beijing: Petrochemical Press, 1987: 283-299
[10]  Zhang Guoquan(张国权). Aerosol Dynamics (气溶胶力学)[M]. Beijing: China Environmental Science Press, 1987: 147-166
[11]  Bird R B, Steward W E, Lightfoot E N. Transport Phenomena [M].2nd ed. New York: John Wiley & Sons, 2002: 23, 274, 525
[12]  He Ch, Ahmadi G. Partical deposition with thermophoresis in laminar and turbulent duct flow [J]. Aerosol Sci. & Tech., 1998, 29(6): 525-546 Aerosol Sci. target="_blank">
[13]  Tsai Chuenjinn,Lin Jyhshyan,Aggarwal S G, et al. Thermophoretic deposition of particles in laminar and turbulent tube flows[J]. Aerosol Sci. & Tech., 2004, 38(2): 131-139 Aerosol Sci. target="_blank">
[14]  Davis E J, Schweiger G. The Airborne Microparticle[M]. Berlin: Springer, 2002: 26-27, 301-430
[15]  Incropera F P, Dewitt D P, Bergman T L. Fundamentals of Heat and Mass Transfer [M]. 6th ed. New York: John Wiley & Sons, 2007: 238-300
[16]  Petukhov B S. Heat transfer and friction in turbulent pipe flow with variable physical properties [J]. Advances in Heat Transfer, 1970, 6: 503-564
[17]  Xu Qipeng(徐其鹏). Study on thermophoresis and wet swimming for dust removal in spiral plate exchanger with axial-cross flow [D]. Chengdu: Sichuan University, 2013

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